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qemu/hw/omap.c

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/*
* TI OMAP processors emulation.
*
* Copyright (C) 2006-2007 Andrzej Zaborowski <balrog@zabor.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include "vl.h"
#include "arm_pic.h"
/* Should signal the TCMI */
uint32_t omap_badwidth_read16(void *opaque, target_phys_addr_t addr)
{
OMAP_16B_REG(addr);
return 0;
}
void omap_badwidth_write16(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
OMAP_16B_REG(addr);
}
uint32_t omap_badwidth_read32(void *opaque, target_phys_addr_t addr)
{
OMAP_32B_REG(addr);
return 0;
}
void omap_badwidth_write32(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
OMAP_32B_REG(addr);
}
/* Interrupt Handlers */
struct omap_intr_handler_s {
qemu_irq *pins;
qemu_irq *parent_pic;
target_phys_addr_t base;
/* state */
uint32_t irqs;
uint32_t mask;
uint32_t sens_edge;
uint32_t fiq;
int priority[32];
uint32_t new_irq_agr;
uint32_t new_fiq_agr;
int sir_irq;
int sir_fiq;
int stats[32];
};
static void omap_inth_update(struct omap_intr_handler_s *s)
{
uint32_t irq = s->irqs & ~s->mask & ~s->fiq;
uint32_t fiq = s->irqs & ~s->mask & s->fiq;
if (s->new_irq_agr || !irq) {
qemu_set_irq(s->parent_pic[ARM_PIC_CPU_IRQ], irq);
if (irq)
s->new_irq_agr = 0;
}
if (s->new_fiq_agr || !irq) {
qemu_set_irq(s->parent_pic[ARM_PIC_CPU_FIQ], fiq);
if (fiq)
s->new_fiq_agr = 0;
}
}
static void omap_inth_sir_update(struct omap_intr_handler_s *s)
{
int i, intr_irq, intr_fiq, p_irq, p_fiq, p, f;
uint32_t level = s->irqs & ~s->mask;
intr_irq = 0;
intr_fiq = 0;
p_irq = -1;
p_fiq = -1;
/* Find the interrupt line with the highest dynamic priority */
for (f = ffs(level), i = f - 1, level >>= f - 1; f; i += f, level >>= f) {
p = s->priority[i];
if (s->fiq & (1 << i)) {
if (p > p_fiq) {
p_fiq = p;
intr_fiq = i;
}
} else {
if (p > p_irq) {
p_irq = p;
intr_irq = i;
}
}
f = ffs(level >> 1);
}
s->sir_irq = intr_irq;
s->sir_fiq = intr_fiq;
}
#define INT_FALLING_EDGE 0
#define INT_LOW_LEVEL 1
static void omap_set_intr(void *opaque, int irq, int req)
{
struct omap_intr_handler_s *ih = (struct omap_intr_handler_s *) opaque;
uint32_t rise;
if (req) {
rise = ~ih->irqs & (1 << irq);
ih->irqs |= rise;
ih->stats[irq] += !!rise;
} else {
rise = ih->sens_edge & ih->irqs & (1 << irq);
ih->irqs &= ~rise;
}
if (rise & ~ih->mask) {
omap_inth_sir_update(ih);
omap_inth_update(ih);
}
}
static uint32_t omap_inth_read(void *opaque, target_phys_addr_t addr)
{
struct omap_intr_handler_s *s = (struct omap_intr_handler_s *) opaque;
int i, offset = addr - s->base;
switch (offset) {
case 0x00: /* ITR */
return s->irqs;
case 0x04: /* MIR */
return s->mask;
case 0x10: /* SIR_IRQ_CODE */
i = s->sir_irq;
if (((s->sens_edge >> i) & 1) == INT_FALLING_EDGE && i) {
s->irqs &= ~(1 << i);
omap_inth_sir_update(s);
omap_inth_update(s);
}
return i;
case 0x14: /* SIR_FIQ_CODE */
i = s->sir_fiq;
if (((s->sens_edge >> i) & 1) == INT_FALLING_EDGE && i) {
s->irqs &= ~(1 << i);
omap_inth_sir_update(s);
omap_inth_update(s);
}
return i;
case 0x18: /* CONTROL_REG */
return 0;
case 0x1c: /* ILR0 */
case 0x20: /* ILR1 */
case 0x24: /* ILR2 */
case 0x28: /* ILR3 */
case 0x2c: /* ILR4 */
case 0x30: /* ILR5 */
case 0x34: /* ILR6 */
case 0x38: /* ILR7 */
case 0x3c: /* ILR8 */
case 0x40: /* ILR9 */
case 0x44: /* ILR10 */
case 0x48: /* ILR11 */
case 0x4c: /* ILR12 */
case 0x50: /* ILR13 */
case 0x54: /* ILR14 */
case 0x58: /* ILR15 */
case 0x5c: /* ILR16 */
case 0x60: /* ILR17 */
case 0x64: /* ILR18 */
case 0x68: /* ILR19 */
case 0x6c: /* ILR20 */
case 0x70: /* ILR21 */
case 0x74: /* ILR22 */
case 0x78: /* ILR23 */
case 0x7c: /* ILR24 */
case 0x80: /* ILR25 */
case 0x84: /* ILR26 */
case 0x88: /* ILR27 */
case 0x8c: /* ILR28 */
case 0x90: /* ILR29 */
case 0x94: /* ILR30 */
case 0x98: /* ILR31 */
i = (offset - 0x1c) >> 2;
return (s->priority[i] << 2) |
(((s->sens_edge >> i) & 1) << 1) |
((s->fiq >> i) & 1);
case 0x9c: /* ISR */
return 0x00000000;
default:
OMAP_BAD_REG(addr);
break;
}
return 0;
}
static void omap_inth_write(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
struct omap_intr_handler_s *s = (struct omap_intr_handler_s *) opaque;
int i, offset = addr - s->base;
switch (offset) {
case 0x00: /* ITR */
s->irqs &= value;
omap_inth_sir_update(s);
omap_inth_update(s);
return;
case 0x04: /* MIR */
s->mask = value;
omap_inth_sir_update(s);
omap_inth_update(s);
return;
case 0x10: /* SIR_IRQ_CODE */
case 0x14: /* SIR_FIQ_CODE */
OMAP_RO_REG(addr);
break;
case 0x18: /* CONTROL_REG */
if (value & 2)
s->new_fiq_agr = ~0;
if (value & 1)
s->new_irq_agr = ~0;
omap_inth_update(s);
return;
case 0x1c: /* ILR0 */
case 0x20: /* ILR1 */
case 0x24: /* ILR2 */
case 0x28: /* ILR3 */
case 0x2c: /* ILR4 */
case 0x30: /* ILR5 */
case 0x34: /* ILR6 */
case 0x38: /* ILR7 */
case 0x3c: /* ILR8 */
case 0x40: /* ILR9 */
case 0x44: /* ILR10 */
case 0x48: /* ILR11 */
case 0x4c: /* ILR12 */
case 0x50: /* ILR13 */
case 0x54: /* ILR14 */
case 0x58: /* ILR15 */
case 0x5c: /* ILR16 */
case 0x60: /* ILR17 */
case 0x64: /* ILR18 */
case 0x68: /* ILR19 */
case 0x6c: /* ILR20 */
case 0x70: /* ILR21 */
case 0x74: /* ILR22 */
case 0x78: /* ILR23 */
case 0x7c: /* ILR24 */
case 0x80: /* ILR25 */
case 0x84: /* ILR26 */
case 0x88: /* ILR27 */
case 0x8c: /* ILR28 */
case 0x90: /* ILR29 */
case 0x94: /* ILR30 */
case 0x98: /* ILR31 */
i = (offset - 0x1c) >> 2;
s->priority[i] = (value >> 2) & 0x1f;
s->sens_edge &= ~(1 << i);
s->sens_edge |= ((value >> 1) & 1) << i;
s->fiq &= ~(1 << i);
s->fiq |= (value & 1) << i;
return;
case 0x9c: /* ISR */
for (i = 0; i < 32; i ++)
if (value & (1 << i)) {
omap_set_intr(s, i, 1);
return;
}
return;
default:
OMAP_BAD_REG(addr);
}
}
static CPUReadMemoryFunc *omap_inth_readfn[] = {
omap_badwidth_read32,
omap_badwidth_read32,
omap_inth_read,
};
static CPUWriteMemoryFunc *omap_inth_writefn[] = {
omap_inth_write,
omap_inth_write,
omap_inth_write,
};
static void omap_inth_reset(struct omap_intr_handler_s *s)
{
s->irqs = 0x00000000;
s->mask = 0xffffffff;
s->sens_edge = 0x00000000;
s->fiq = 0x00000000;
memset(s->priority, 0, sizeof(s->priority));
s->new_irq_agr = ~0;
s->new_fiq_agr = ~0;
s->sir_irq = 0;
s->sir_fiq = 0;
omap_inth_update(s);
}
struct omap_intr_handler_s *omap_inth_init(target_phys_addr_t base,
unsigned long size, qemu_irq parent[2], omap_clk clk)
{
int iomemtype;
struct omap_intr_handler_s *s = (struct omap_intr_handler_s *)
qemu_mallocz(sizeof(struct omap_intr_handler_s));
s->parent_pic = parent;
s->base = base;
s->pins = qemu_allocate_irqs(omap_set_intr, s, 32);
omap_inth_reset(s);
iomemtype = cpu_register_io_memory(0, omap_inth_readfn,
omap_inth_writefn, s);
cpu_register_physical_memory(s->base, size, iomemtype);
return s;
}
/* OMAP1 DMA module */
typedef enum {
constant = 0,
post_incremented,
single_index,
double_index,
} omap_dma_addressing_t;
struct omap_dma_channel_s {
int burst[2];
int pack[2];
enum omap_dma_port port[2];
target_phys_addr_t addr[2];
omap_dma_addressing_t mode[2];
int data_type;
int end_prog;
int repeat;
int auto_init;
int priority;
int fs;
int sync;
int running;
int interrupts;
int status;
int signalled;
int post_sync;
int transfer;
uint16_t elements;
uint16_t frames;
uint16_t frame_index;
uint16_t element_index;
uint16_t cpc;
struct omap_dma_reg_set_s {
target_phys_addr_t src, dest;
int frame;
int element;
int frame_delta[2];
int elem_delta[2];
int frames;
int elements;
} active_set;
};
struct omap_dma_s {
qemu_irq *ih;
QEMUTimer *tm;
struct omap_mpu_state_s *mpu;
target_phys_addr_t base;
omap_clk clk;
int64_t delay;
uint32_t drq;
uint16_t gcr;
int run_count;
int chans;
struct omap_dma_channel_s ch[16];
struct omap_dma_lcd_channel_s lcd_ch;
};
static void omap_dma_interrupts_update(struct omap_dma_s *s)
{
/* First three interrupts are shared between two channels each. */
qemu_set_irq(s->ih[OMAP_INT_DMA_CH0_6],
(s->ch[0].status | s->ch[6].status) & 0x3f);
qemu_set_irq(s->ih[OMAP_INT_DMA_CH1_7],
(s->ch[1].status | s->ch[7].status) & 0x3f);
qemu_set_irq(s->ih[OMAP_INT_DMA_CH2_8],
(s->ch[2].status | s->ch[8].status) & 0x3f);
qemu_set_irq(s->ih[OMAP_INT_DMA_CH3],
(s->ch[3].status) & 0x3f);
qemu_set_irq(s->ih[OMAP_INT_DMA_CH4],
(s->ch[4].status) & 0x3f);
qemu_set_irq(s->ih[OMAP_INT_DMA_CH5],
(s->ch[5].status) & 0x3f);
}
static void omap_dma_channel_load(struct omap_dma_s *s, int ch)
{
struct omap_dma_reg_set_s *a = &s->ch[ch].active_set;
int i;
/*
* TODO: verify address ranges and alignment
* TODO: port endianness
*/
a->src = s->ch[ch].addr[0];
a->dest = s->ch[ch].addr[1];
a->frames = s->ch[ch].frames;
a->elements = s->ch[ch].elements;
a->frame = 0;
a->element = 0;
if (unlikely(!s->ch[ch].elements || !s->ch[ch].frames)) {
printf("%s: bad DMA request\n", __FUNCTION__);
return;
}
for (i = 0; i < 2; i ++)
switch (s->ch[ch].mode[i]) {
case constant:
a->elem_delta[i] = 0;
a->frame_delta[i] = 0;
break;
case post_incremented:
a->elem_delta[i] = s->ch[ch].data_type;
a->frame_delta[i] = 0;
break;
case single_index:
a->elem_delta[i] = s->ch[ch].data_type +
s->ch[ch].element_index - 1;
if (s->ch[ch].element_index > 0x7fff)
a->elem_delta[i] -= 0x10000;
a->frame_delta[i] = 0;
break;
case double_index:
a->elem_delta[i] = s->ch[ch].data_type +
s->ch[ch].element_index - 1;
if (s->ch[ch].element_index > 0x7fff)
a->elem_delta[i] -= 0x10000;
a->frame_delta[i] = s->ch[ch].frame_index -
s->ch[ch].element_index;
if (s->ch[ch].frame_index > 0x7fff)
a->frame_delta[i] -= 0x10000;
break;
default:
break;
}
}
static inline void omap_dma_request_run(struct omap_dma_s *s,
int channel, int request)
{
next_channel:
if (request > 0)
for (; channel < 9; channel ++)
if (s->ch[channel].sync == request && s->ch[channel].running)
break;
if (channel >= 9)
return;
if (s->ch[channel].transfer) {
if (request > 0) {
s->ch[channel ++].post_sync = request;
goto next_channel;
}
s->ch[channel].status |= 0x02; /* Synchronisation drop */
omap_dma_interrupts_update(s);
return;
}
if (!s->ch[channel].signalled)
s->run_count ++;
s->ch[channel].signalled = 1;
if (request > 0)
s->ch[channel].status |= 0x40; /* External request */
if (s->delay && !qemu_timer_pending(s->tm))
qemu_mod_timer(s->tm, qemu_get_clock(vm_clock) + s->delay);
if (request > 0) {
channel ++;
goto next_channel;
}
}
static inline void omap_dma_request_stop(struct omap_dma_s *s, int channel)
{
if (s->ch[channel].signalled)
s->run_count --;
s->ch[channel].signalled = 0;
if (!s->run_count)
qemu_del_timer(s->tm);
}
static void omap_dma_channel_run(struct omap_dma_s *s)
{
int ch;
uint16_t status;
uint8_t value[4];
struct omap_dma_port_if_s *src_p, *dest_p;
struct omap_dma_reg_set_s *a;
for (ch = 0; ch < 9; ch ++) {
a = &s->ch[ch].active_set;
src_p = &s->mpu->port[s->ch[ch].port[0]];
dest_p = &s->mpu->port[s->ch[ch].port[1]];
if (s->ch[ch].signalled && (!src_p->addr_valid(s->mpu, a->src) ||
!dest_p->addr_valid(s->mpu, a->dest))) {
#if 0
/* Bus time-out */
if (s->ch[ch].interrupts & 0x01)
s->ch[ch].status |= 0x01;
omap_dma_request_stop(s, ch);
continue;
#endif
printf("%s: Bus time-out in DMA%i operation\n", __FUNCTION__, ch);
}
status = s->ch[ch].status;
while (status == s->ch[ch].status && s->ch[ch].signalled) {
/* Transfer a single element */
s->ch[ch].transfer = 1;
cpu_physical_memory_read(a->src, value, s->ch[ch].data_type);
cpu_physical_memory_write(a->dest, value, s->ch[ch].data_type);
s->ch[ch].transfer = 0;
a->src += a->elem_delta[0];
a->dest += a->elem_delta[1];
a->element ++;
/* Check interrupt conditions */
if (a->element == a->elements) {
a->element = 0;
a->src += a->frame_delta[0];
a->dest += a->frame_delta[1];
a->frame ++;
if (a->frame == a->frames) {
if (!s->ch[ch].repeat || !s->ch[ch].auto_init)
s->ch[ch].running = 0;
if (s->ch[ch].auto_init &&
(s->ch[ch].repeat ||
s->ch[ch].end_prog))
omap_dma_channel_load(s, ch);
if (s->ch[ch].interrupts & 0x20)
s->ch[ch].status |= 0x20;
if (!s->ch[ch].sync)
omap_dma_request_stop(s, ch);
}
if (s->ch[ch].interrupts & 0x08)
s->ch[ch].status |= 0x08;
if (s->ch[ch].sync && s->ch[ch].fs &&
!(s->drq & (1 << s->ch[ch].sync))) {
s->ch[ch].status &= ~0x40;
omap_dma_request_stop(s, ch);
}
}
if (a->element == 1 && a->frame == a->frames - 1)
if (s->ch[ch].interrupts & 0x10)
s->ch[ch].status |= 0x10;
if (a->element == (a->elements >> 1))
if (s->ch[ch].interrupts & 0x04)
s->ch[ch].status |= 0x04;
if (s->ch[ch].sync && !s->ch[ch].fs &&
!(s->drq & (1 << s->ch[ch].sync))) {
s->ch[ch].status &= ~0x40;
omap_dma_request_stop(s, ch);
}
/*
* Process requests made while the element was
* being transferred.
*/
if (s->ch[ch].post_sync) {
omap_dma_request_run(s, 0, s->ch[ch].post_sync);
s->ch[ch].post_sync = 0;
}
#if 0
break;
#endif
}
s->ch[ch].cpc = a->dest & 0x0000ffff;
}
omap_dma_interrupts_update(s);
if (s->run_count && s->delay)
qemu_mod_timer(s->tm, qemu_get_clock(vm_clock) + s->delay);
}
static int omap_dma_ch_reg_read(struct omap_dma_s *s,
int ch, int reg, uint16_t *value) {
switch (reg) {
case 0x00: /* SYS_DMA_CSDP_CH0 */
*value = (s->ch[ch].burst[1] << 14) |
(s->ch[ch].pack[1] << 13) |
(s->ch[ch].port[1] << 9) |
(s->ch[ch].burst[0] << 7) |
(s->ch[ch].pack[0] << 6) |
(s->ch[ch].port[0] << 2) |
(s->ch[ch].data_type >> 1);
break;
case 0x02: /* SYS_DMA_CCR_CH0 */
*value = (s->ch[ch].mode[1] << 14) |
(s->ch[ch].mode[0] << 12) |
(s->ch[ch].end_prog << 11) |
(s->ch[ch].repeat << 9) |
(s->ch[ch].auto_init << 8) |
(s->ch[ch].running << 7) |
(s->ch[ch].priority << 6) |
(s->ch[ch].fs << 5) | s->ch[ch].sync;
break;
case 0x04: /* SYS_DMA_CICR_CH0 */
*value = s->ch[ch].interrupts;
break;
case 0x06: /* SYS_DMA_CSR_CH0 */
/* FIXME: shared CSR for channels sharing the interrupts */
*value = s->ch[ch].status;
s->ch[ch].status &= 0x40;
omap_dma_interrupts_update(s);
break;
case 0x08: /* SYS_DMA_CSSA_L_CH0 */
*value = s->ch[ch].addr[0] & 0x0000ffff;
break;
case 0x0a: /* SYS_DMA_CSSA_U_CH0 */
*value = s->ch[ch].addr[0] >> 16;
break;
case 0x0c: /* SYS_DMA_CDSA_L_CH0 */
*value = s->ch[ch].addr[1] & 0x0000ffff;
break;
case 0x0e: /* SYS_DMA_CDSA_U_CH0 */
*value = s->ch[ch].addr[1] >> 16;
break;
case 0x10: /* SYS_DMA_CEN_CH0 */
*value = s->ch[ch].elements;
break;
case 0x12: /* SYS_DMA_CFN_CH0 */
*value = s->ch[ch].frames;
break;
case 0x14: /* SYS_DMA_CFI_CH0 */
*value = s->ch[ch].frame_index;
break;
case 0x16: /* SYS_DMA_CEI_CH0 */
*value = s->ch[ch].element_index;
break;
case 0x18: /* SYS_DMA_CPC_CH0 */
*value = s->ch[ch].cpc;
break;
default:
return 1;
}
return 0;
}
static int omap_dma_ch_reg_write(struct omap_dma_s *s,
int ch, int reg, uint16_t value) {
switch (reg) {
case 0x00: /* SYS_DMA_CSDP_CH0 */
s->ch[ch].burst[1] = (value & 0xc000) >> 14;
s->ch[ch].pack[1] = (value & 0x2000) >> 13;
s->ch[ch].port[1] = (enum omap_dma_port) ((value & 0x1e00) >> 9);
s->ch[ch].burst[0] = (value & 0x0180) >> 7;
s->ch[ch].pack[0] = (value & 0x0040) >> 6;
s->ch[ch].port[0] = (enum omap_dma_port) ((value & 0x003c) >> 2);
s->ch[ch].data_type = (1 << (value & 3));
if (s->ch[ch].port[0] >= omap_dma_port_last)
printf("%s: invalid DMA port %i\n", __FUNCTION__,
s->ch[ch].port[0]);
if (s->ch[ch].port[1] >= omap_dma_port_last)
printf("%s: invalid DMA port %i\n", __FUNCTION__,
s->ch[ch].port[1]);
if ((value & 3) == 3)
printf("%s: bad data_type for DMA channel %i\n", __FUNCTION__, ch);
break;
case 0x02: /* SYS_DMA_CCR_CH0 */
s->ch[ch].mode[1] = (omap_dma_addressing_t) ((value & 0xc000) >> 14);
s->ch[ch].mode[0] = (omap_dma_addressing_t) ((value & 0x3000) >> 12);
s->ch[ch].end_prog = (value & 0x0800) >> 11;
s->ch[ch].repeat = (value & 0x0200) >> 9;
s->ch[ch].auto_init = (value & 0x0100) >> 8;
s->ch[ch].priority = (value & 0x0040) >> 6;
s->ch[ch].fs = (value & 0x0020) >> 5;
s->ch[ch].sync = value & 0x001f;
if (value & 0x0080) {
if (s->ch[ch].running) {
if (!s->ch[ch].signalled &&
s->ch[ch].auto_init && s->ch[ch].end_prog)
omap_dma_channel_load(s, ch);
} else {
s->ch[ch].running = 1;
omap_dma_channel_load(s, ch);
}
if (!s->ch[ch].sync || (s->drq & (1 << s->ch[ch].sync)))
omap_dma_request_run(s, ch, 0);
} else {
s->ch[ch].running = 0;
omap_dma_request_stop(s, ch);
}
break;
case 0x04: /* SYS_DMA_CICR_CH0 */
s->ch[ch].interrupts = value & 0x003f;
break;
case 0x06: /* SYS_DMA_CSR_CH0 */
return 1;
case 0x08: /* SYS_DMA_CSSA_L_CH0 */
s->ch[ch].addr[0] &= 0xffff0000;
s->ch[ch].addr[0] |= value;
break;
case 0x0a: /* SYS_DMA_CSSA_U_CH0 */
s->ch[ch].addr[0] &= 0x0000ffff;
s->ch[ch].addr[0] |= value << 16;
break;
case 0x0c: /* SYS_DMA_CDSA_L_CH0 */
s->ch[ch].addr[1] &= 0xffff0000;
s->ch[ch].addr[1] |= value;
break;
case 0x0e: /* SYS_DMA_CDSA_U_CH0 */
s->ch[ch].addr[1] &= 0x0000ffff;
s->ch[ch].addr[1] |= value << 16;
break;
case 0x10: /* SYS_DMA_CEN_CH0 */
s->ch[ch].elements = value & 0xffff;
break;
case 0x12: /* SYS_DMA_CFN_CH0 */
s->ch[ch].frames = value & 0xffff;
break;
case 0x14: /* SYS_DMA_CFI_CH0 */
s->ch[ch].frame_index = value & 0xffff;
break;
case 0x16: /* SYS_DMA_CEI_CH0 */
s->ch[ch].element_index = value & 0xffff;
break;
case 0x18: /* SYS_DMA_CPC_CH0 */
return 1;
default:
OMAP_BAD_REG((unsigned long) reg);
}
return 0;
}
static uint32_t omap_dma_read(void *opaque, target_phys_addr_t addr)
{
struct omap_dma_s *s = (struct omap_dma_s *) opaque;
int i, reg, ch, offset = addr - s->base;
uint16_t ret;
switch (offset) {
case 0x000 ... 0x2fe:
reg = offset & 0x3f;
ch = (offset >> 6) & 0x0f;
if (omap_dma_ch_reg_read(s, ch, reg, &ret))
break;
return ret;
case 0x300: /* SYS_DMA_LCD_CTRL */
i = s->lcd_ch.condition;
s->lcd_ch.condition = 0;
qemu_irq_lower(s->lcd_ch.irq);
return ((s->lcd_ch.src == imif) << 6) | (i << 3) |
(s->lcd_ch.interrupts << 1) | s->lcd_ch.dual;
case 0x302: /* SYS_DMA_LCD_TOP_F1_L */
return s->lcd_ch.src_f1_top & 0xffff;
case 0x304: /* SYS_DMA_LCD_TOP_F1_U */
return s->lcd_ch.src_f1_top >> 16;
case 0x306: /* SYS_DMA_LCD_BOT_F1_L */
return s->lcd_ch.src_f1_bottom & 0xffff;
case 0x308: /* SYS_DMA_LCD_BOT_F1_U */
return s->lcd_ch.src_f1_bottom >> 16;
case 0x30a: /* SYS_DMA_LCD_TOP_F2_L */
return s->lcd_ch.src_f2_top & 0xffff;
case 0x30c: /* SYS_DMA_LCD_TOP_F2_U */
return s->lcd_ch.src_f2_top >> 16;
case 0x30e: /* SYS_DMA_LCD_BOT_F2_L */
return s->lcd_ch.src_f2_bottom & 0xffff;
case 0x310: /* SYS_DMA_LCD_BOT_F2_U */
return s->lcd_ch.src_f2_bottom >> 16;
case 0x400: /* SYS_DMA_GCR */
return s->gcr;
}
OMAP_BAD_REG(addr);
return 0;
}
static void omap_dma_write(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
struct omap_dma_s *s = (struct omap_dma_s *) opaque;
int reg, ch, offset = addr - s->base;
switch (offset) {
case 0x000 ... 0x2fe:
reg = offset & 0x3f;
ch = (offset >> 6) & 0x0f;
if (omap_dma_ch_reg_write(s, ch, reg, value))
OMAP_RO_REG(addr);
break;
case 0x300: /* SYS_DMA_LCD_CTRL */
s->lcd_ch.src = (value & 0x40) ? imif : emiff;
s->lcd_ch.condition = 0;
/* Assume no bus errors and thus no BUS_ERROR irq bits. */
s->lcd_ch.interrupts = (value >> 1) & 1;
s->lcd_ch.dual = value & 1;
break;
case 0x302: /* SYS_DMA_LCD_TOP_F1_L */
s->lcd_ch.src_f1_top &= 0xffff0000;
s->lcd_ch.src_f1_top |= 0x0000ffff & value;
break;
case 0x304: /* SYS_DMA_LCD_TOP_F1_U */
s->lcd_ch.src_f1_top &= 0x0000ffff;
s->lcd_ch.src_f1_top |= value << 16;
break;
case 0x306: /* SYS_DMA_LCD_BOT_F1_L */
s->lcd_ch.src_f1_bottom &= 0xffff0000;
s->lcd_ch.src_f1_bottom |= 0x0000ffff & value;
break;
case 0x308: /* SYS_DMA_LCD_BOT_F1_U */
s->lcd_ch.src_f1_bottom &= 0x0000ffff;
s->lcd_ch.src_f1_bottom |= value << 16;
break;
case 0x30a: /* SYS_DMA_LCD_TOP_F2_L */
s->lcd_ch.src_f2_top &= 0xffff0000;
s->lcd_ch.src_f2_top |= 0x0000ffff & value;
break;
case 0x30c: /* SYS_DMA_LCD_TOP_F2_U */
s->lcd_ch.src_f2_top &= 0x0000ffff;
s->lcd_ch.src_f2_top |= value << 16;
break;
case 0x30e: /* SYS_DMA_LCD_BOT_F2_L */
s->lcd_ch.src_f2_bottom &= 0xffff0000;
s->lcd_ch.src_f2_bottom |= 0x0000ffff & value;
break;
case 0x310: /* SYS_DMA_LCD_BOT_F2_U */
s->lcd_ch.src_f2_bottom &= 0x0000ffff;
s->lcd_ch.src_f2_bottom |= value << 16;
break;
case 0x400: /* SYS_DMA_GCR */
s->gcr = value & 0x000c;
break;
default:
OMAP_BAD_REG(addr);
}
}
static CPUReadMemoryFunc *omap_dma_readfn[] = {
omap_badwidth_read16,
omap_dma_read,
omap_badwidth_read16,
};
static CPUWriteMemoryFunc *omap_dma_writefn[] = {
omap_badwidth_write16,
omap_dma_write,
omap_badwidth_write16,
};
static void omap_dma_request(void *opaque, int drq, int req)
{
struct omap_dma_s *s = (struct omap_dma_s *) opaque;
/* The request pins are level triggered. */
if (req) {
if (~s->drq & (1 << drq)) {
s->drq |= 1 << drq;
omap_dma_request_run(s, 0, drq);
}
} else
s->drq &= ~(1 << drq);
}
static void omap_dma_clk_update(void *opaque, int line, int on)
{
struct omap_dma_s *s = (struct omap_dma_s *) opaque;
if (on) {
s->delay = ticks_per_sec >> 5;
if (s->run_count)
qemu_mod_timer(s->tm, qemu_get_clock(vm_clock) + s->delay);
} else {
s->delay = 0;
qemu_del_timer(s->tm);
}
}
static void omap_dma_reset(struct omap_dma_s *s)
{
int i;
qemu_del_timer(s->tm);
s->gcr = 0x0004;
s->drq = 0x00000000;
s->run_count = 0;
s->lcd_ch.src = emiff;
s->lcd_ch.condition = 0;
s->lcd_ch.interrupts = 0;
s->lcd_ch.dual = 0;
memset(s->ch, 0, sizeof(s->ch));
for (i = 0; i < s->chans; i ++)
s->ch[i].interrupts = 0x0003;
}
struct omap_dma_s *omap_dma_init(target_phys_addr_t base,
qemu_irq pic[], struct omap_mpu_state_s *mpu, omap_clk clk)
{
int iomemtype;
struct omap_dma_s *s = (struct omap_dma_s *)
qemu_mallocz(sizeof(struct omap_dma_s));
s->ih = pic;
s->base = base;
s->chans = 9;
s->mpu = mpu;
s->clk = clk;
s->lcd_ch.irq = pic[OMAP_INT_DMA_LCD];
s->lcd_ch.mpu = mpu;
s->tm = qemu_new_timer(vm_clock, (QEMUTimerCB *) omap_dma_channel_run, s);
omap_clk_adduser(s->clk, qemu_allocate_irqs(omap_dma_clk_update, s, 1)[0]);
mpu->drq = qemu_allocate_irqs(omap_dma_request, s, 32);
omap_dma_reset(s);
omap_dma_clk_update(s, 0, 1);
iomemtype = cpu_register_io_memory(0, omap_dma_readfn,
omap_dma_writefn, s);
cpu_register_physical_memory(s->base, 0x800, iomemtype);
return s;
}
/* DMA ports */
int omap_validate_emiff_addr(struct omap_mpu_state_s *s,
target_phys_addr_t addr)
{
return addr >= OMAP_EMIFF_BASE && addr < OMAP_EMIFF_BASE + s->sdram_size;
}
int omap_validate_emifs_addr(struct omap_mpu_state_s *s,
target_phys_addr_t addr)
{
return addr >= OMAP_EMIFS_BASE && addr < OMAP_EMIFF_BASE;
}
int omap_validate_imif_addr(struct omap_mpu_state_s *s,
target_phys_addr_t addr)
{
return addr >= OMAP_IMIF_BASE && addr < OMAP_IMIF_BASE + s->sram_size;
}
int omap_validate_tipb_addr(struct omap_mpu_state_s *s,
target_phys_addr_t addr)
{
return addr >= 0xfffb0000 && addr < 0xffff0000;
}
int omap_validate_local_addr(struct omap_mpu_state_s *s,
target_phys_addr_t addr)
{
return addr >= OMAP_LOCALBUS_BASE && addr < OMAP_LOCALBUS_BASE + 0x1000000;
}
int omap_validate_tipb_mpui_addr(struct omap_mpu_state_s *s,
target_phys_addr_t addr)
{
return addr >= 0xe1010000 && addr < 0xe1020004;
}
/* MPU OS timers */
struct omap_mpu_timer_s {
qemu_irq irq;
omap_clk clk;
target_phys_addr_t base;
uint32_t val;
int64_t time;
QEMUTimer *timer;
int64_t rate;
int it_ena;
int enable;
int ptv;
int ar;
int st;
uint32_t reset_val;
};
static inline uint32_t omap_timer_read(struct omap_mpu_timer_s *timer)
{
uint64_t distance = qemu_get_clock(vm_clock) - timer->time;
if (timer->st && timer->enable && timer->rate)
return timer->val - muldiv64(distance >> (timer->ptv + 1),
timer->rate, ticks_per_sec);
else
return timer->val;
}
static inline void omap_timer_sync(struct omap_mpu_timer_s *timer)
{
timer->val = omap_timer_read(timer);
timer->time = qemu_get_clock(vm_clock);
}
static inline void omap_timer_update(struct omap_mpu_timer_s *timer)
{
int64_t expires;
if (timer->enable && timer->st && timer->rate) {
timer->val = timer->reset_val; /* Should skip this on clk enable */
expires = timer->time + muldiv64(timer->val << (timer->ptv + 1),
ticks_per_sec, timer->rate);
qemu_mod_timer(timer->timer, expires);
} else
qemu_del_timer(timer->timer);
}
static void omap_timer_tick(void *opaque)
{
struct omap_mpu_timer_s *timer = (struct omap_mpu_timer_s *) opaque;
omap_timer_sync(timer);
if (!timer->ar) {
timer->val = 0;
timer->st = 0;
}
if (timer->it_ena)
qemu_irq_raise(timer->irq);
omap_timer_update(timer);
}
static void omap_timer_clk_update(void *opaque, int line, int on)
{
struct omap_mpu_timer_s *timer = (struct omap_mpu_timer_s *) opaque;
omap_timer_sync(timer);
timer->rate = on ? omap_clk_getrate(timer->clk) : 0;
omap_timer_update(timer);
}
static void omap_timer_clk_setup(struct omap_mpu_timer_s *timer)
{
omap_clk_adduser(timer->clk,
qemu_allocate_irqs(omap_timer_clk_update, timer, 1)[0]);
timer->rate = omap_clk_getrate(timer->clk);
}
static uint32_t omap_mpu_timer_read(void *opaque, target_phys_addr_t addr)
{
struct omap_mpu_timer_s *s = (struct omap_mpu_timer_s *) opaque;
int offset = addr - s->base;
switch (offset) {
case 0x00: /* CNTL_TIMER */
return (s->enable << 5) | (s->ptv << 2) | (s->ar << 1) | s->st;
case 0x04: /* LOAD_TIM */
break;
case 0x08: /* READ_TIM */
return omap_timer_read(s);
}
OMAP_BAD_REG(addr);
return 0;
}
static void omap_mpu_timer_write(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
struct omap_mpu_timer_s *s = (struct omap_mpu_timer_s *) opaque;
int offset = addr - s->base;
switch (offset) {
case 0x00: /* CNTL_TIMER */
omap_timer_sync(s);
s->enable = (value >> 5) & 1;
s->ptv = (value >> 2) & 7;
s->ar = (value >> 1) & 1;
s->st = value & 1;
omap_timer_update(s);
return;
case 0x04: /* LOAD_TIM */
s->reset_val = value;
return;
case 0x08: /* READ_TIM */
OMAP_RO_REG(addr);
break;
default:
OMAP_BAD_REG(addr);
}
}
static CPUReadMemoryFunc *omap_mpu_timer_readfn[] = {
omap_badwidth_read32,
omap_badwidth_read32,
omap_mpu_timer_read,
};
static CPUWriteMemoryFunc *omap_mpu_timer_writefn[] = {
omap_badwidth_write32,
omap_badwidth_write32,
omap_mpu_timer_write,
};
static void omap_mpu_timer_reset(struct omap_mpu_timer_s *s)
{
qemu_del_timer(s->timer);
s->enable = 0;
s->reset_val = 31337;
s->val = 0;
s->ptv = 0;
s->ar = 0;
s->st = 0;
s->it_ena = 1;
}
struct omap_mpu_timer_s *omap_mpu_timer_init(target_phys_addr_t base,
qemu_irq irq, omap_clk clk)
{
int iomemtype;
struct omap_mpu_timer_s *s = (struct omap_mpu_timer_s *)
qemu_mallocz(sizeof(struct omap_mpu_timer_s));
s->irq = irq;
s->clk = clk;
s->base = base;
s->timer = qemu_new_timer(vm_clock, omap_timer_tick, s);
omap_mpu_timer_reset(s);
omap_timer_clk_setup(s);
iomemtype = cpu_register_io_memory(0, omap_mpu_timer_readfn,
omap_mpu_timer_writefn, s);
cpu_register_physical_memory(s->base, 0x100, iomemtype);
return s;
}
/* Watchdog timer */
struct omap_watchdog_timer_s {
struct omap_mpu_timer_s timer;
uint8_t last_wr;
int mode;
int free;
int reset;
};
static uint32_t omap_wd_timer_read(void *opaque, target_phys_addr_t addr)
{
struct omap_watchdog_timer_s *s = (struct omap_watchdog_timer_s *) opaque;
int offset = addr - s->timer.base;
switch (offset) {
case 0x00: /* CNTL_TIMER */
return (s->timer.ptv << 9) | (s->timer.ar << 8) |
(s->timer.st << 7) | (s->free << 1);
case 0x04: /* READ_TIMER */
return omap_timer_read(&s->timer);
case 0x08: /* TIMER_MODE */
return s->mode << 15;
}
OMAP_BAD_REG(addr);
return 0;
}
static void omap_wd_timer_write(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
struct omap_watchdog_timer_s *s = (struct omap_watchdog_timer_s *) opaque;
int offset = addr - s->timer.base;
switch (offset) {
case 0x00: /* CNTL_TIMER */
omap_timer_sync(&s->timer);
s->timer.ptv = (value >> 9) & 7;
s->timer.ar = (value >> 8) & 1;
s->timer.st = (value >> 7) & 1;
s->free = (value >> 1) & 1;
omap_timer_update(&s->timer);
break;
case 0x04: /* LOAD_TIMER */
s->timer.reset_val = value & 0xffff;
break;
case 0x08: /* TIMER_MODE */
if (!s->mode && ((value >> 15) & 1))
omap_clk_get(s->timer.clk);
s->mode |= (value >> 15) & 1;
if (s->last_wr == 0xf5) {
if ((value & 0xff) == 0xa0) {
s->mode = 0;
omap_clk_put(s->timer.clk);
} else {
/* XXX: on T|E hardware somehow this has no effect,
* on Zire 71 it works as specified. */
s->reset = 1;
qemu_system_reset_request();
}
}
s->last_wr = value & 0xff;
break;
default:
OMAP_BAD_REG(addr);
}
}
static CPUReadMemoryFunc *omap_wd_timer_readfn[] = {
omap_badwidth_read16,
omap_wd_timer_read,
omap_badwidth_read16,
};
static CPUWriteMemoryFunc *omap_wd_timer_writefn[] = {
omap_badwidth_write16,
omap_wd_timer_write,
omap_badwidth_write16,
};
static void omap_wd_timer_reset(struct omap_watchdog_timer_s *s)
{
qemu_del_timer(s->timer.timer);
if (!s->mode)
omap_clk_get(s->timer.clk);
s->mode = 1;
s->free = 1;
s->reset = 0;
s->timer.enable = 1;
s->timer.it_ena = 1;
s->timer.reset_val = 0xffff;
s->timer.val = 0;
s->timer.st = 0;
s->timer.ptv = 0;
s->timer.ar = 0;
omap_timer_update(&s->timer);
}
struct omap_watchdog_timer_s *omap_wd_timer_init(target_phys_addr_t base,
qemu_irq irq, omap_clk clk)
{
int iomemtype;
struct omap_watchdog_timer_s *s = (struct omap_watchdog_timer_s *)
qemu_mallocz(sizeof(struct omap_watchdog_timer_s));
s->timer.irq = irq;
s->timer.clk = clk;
s->timer.base = base;
s->timer.timer = qemu_new_timer(vm_clock, omap_timer_tick, &s->timer);
omap_wd_timer_reset(s);
omap_timer_clk_setup(&s->timer);
iomemtype = cpu_register_io_memory(0, omap_wd_timer_readfn,
omap_wd_timer_writefn, s);
cpu_register_physical_memory(s->timer.base, 0x100, iomemtype);
return s;
}
/* 32-kHz timer */
struct omap_32khz_timer_s {
struct omap_mpu_timer_s timer;
};
static uint32_t omap_os_timer_read(void *opaque, target_phys_addr_t addr)
{
struct omap_32khz_timer_s *s = (struct omap_32khz_timer_s *) opaque;
int offset = addr - s->timer.base;
switch (offset) {
case 0x00: /* TVR */
return s->timer.reset_val;
case 0x04: /* TCR */
return omap_timer_read(&s->timer);
case 0x08: /* CR */
return (s->timer.ar << 3) | (s->timer.it_ena << 2) | s->timer.st;
default:
break;
}
OMAP_BAD_REG(addr);
return 0;
}
static void omap_os_timer_write(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
struct omap_32khz_timer_s *s = (struct omap_32khz_timer_s *) opaque;
int offset = addr - s->timer.base;
switch (offset) {
case 0x00: /* TVR */
s->timer.reset_val = value & 0x00ffffff;
break;
case 0x04: /* TCR */
OMAP_RO_REG(addr);
break;
case 0x08: /* CR */
s->timer.ar = (value >> 3) & 1;
s->timer.it_ena = (value >> 2) & 1;
if (s->timer.st != (value & 1) || (value & 2)) {
omap_timer_sync(&s->timer);
s->timer.enable = value & 1;
s->timer.st = value & 1;
omap_timer_update(&s->timer);
}
break;
default:
OMAP_BAD_REG(addr);
}
}
static CPUReadMemoryFunc *omap_os_timer_readfn[] = {
omap_badwidth_read32,
omap_badwidth_read32,
omap_os_timer_read,
};
static CPUWriteMemoryFunc *omap_os_timer_writefn[] = {
omap_badwidth_write32,
omap_badwidth_write32,
omap_os_timer_write,
};
static void omap_os_timer_reset(struct omap_32khz_timer_s *s)
{
qemu_del_timer(s->timer.timer);
s->timer.enable = 0;
s->timer.it_ena = 0;
s->timer.reset_val = 0x00ffffff;
s->timer.val = 0;
s->timer.st = 0;
s->timer.ptv = 0;
s->timer.ar = 1;
}
struct omap_32khz_timer_s *omap_os_timer_init(target_phys_addr_t base,
qemu_irq irq, omap_clk clk)
{
int iomemtype;
struct omap_32khz_timer_s *s = (struct omap_32khz_timer_s *)
qemu_mallocz(sizeof(struct omap_32khz_timer_s));
s->timer.irq = irq;
s->timer.clk = clk;
s->timer.base = base;
s->timer.timer = qemu_new_timer(vm_clock, omap_timer_tick, &s->timer);
omap_os_timer_reset(s);
omap_timer_clk_setup(&s->timer);
iomemtype = cpu_register_io_memory(0, omap_os_timer_readfn,
omap_os_timer_writefn, s);
cpu_register_physical_memory(s->timer.base, 0x800, iomemtype);
return s;
}
/* Ultra Low-Power Device Module */
static uint32_t omap_ulpd_pm_read(void *opaque, target_phys_addr_t addr)
{
struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
int offset = addr - s->ulpd_pm_base;
uint16_t ret;
switch (offset) {
case 0x14: /* IT_STATUS */
ret = s->ulpd_pm_regs[offset >> 2];
s->ulpd_pm_regs[offset >> 2] = 0;
qemu_irq_lower(s->irq[1][OMAP_INT_GAUGE_32K]);
return ret;
case 0x18: /* Reserved */
case 0x1c: /* Reserved */
case 0x20: /* Reserved */
case 0x28: /* Reserved */
case 0x2c: /* Reserved */
OMAP_BAD_REG(addr);
case 0x00: /* COUNTER_32_LSB */
case 0x04: /* COUNTER_32_MSB */
case 0x08: /* COUNTER_HIGH_FREQ_LSB */
case 0x0c: /* COUNTER_HIGH_FREQ_MSB */
case 0x10: /* GAUGING_CTRL */
case 0x24: /* SETUP_ANALOG_CELL3_ULPD1 */
case 0x30: /* CLOCK_CTRL */
case 0x34: /* SOFT_REQ */
case 0x38: /* COUNTER_32_FIQ */
case 0x3c: /* DPLL_CTRL */
case 0x40: /* STATUS_REQ */
/* XXX: check clk::usecount state for every clock */
case 0x48: /* LOCL_TIME */
case 0x4c: /* APLL_CTRL */
case 0x50: /* POWER_CTRL */
return s->ulpd_pm_regs[offset >> 2];
}
OMAP_BAD_REG(addr);
return 0;
}
static inline void omap_ulpd_clk_update(struct omap_mpu_state_s *s,
uint16_t diff, uint16_t value)
{
if (diff & (1 << 4)) /* USB_MCLK_EN */
omap_clk_onoff(omap_findclk(s, "usb_clk0"), (value >> 4) & 1);
if (diff & (1 << 5)) /* DIS_USB_PVCI_CLK */
omap_clk_onoff(omap_findclk(s, "usb_w2fc_ck"), (~value >> 5) & 1);
}
static inline void omap_ulpd_req_update(struct omap_mpu_state_s *s,
uint16_t diff, uint16_t value)
{
if (diff & (1 << 0)) /* SOFT_DPLL_REQ */
omap_clk_canidle(omap_findclk(s, "dpll4"), (~value >> 0) & 1);
if (diff & (1 << 1)) /* SOFT_COM_REQ */
omap_clk_canidle(omap_findclk(s, "com_mclk_out"), (~value >> 1) & 1);
if (diff & (1 << 2)) /* SOFT_SDW_REQ */
omap_clk_canidle(omap_findclk(s, "bt_mclk_out"), (~value >> 2) & 1);
if (diff & (1 << 3)) /* SOFT_USB_REQ */
omap_clk_canidle(omap_findclk(s, "usb_clk0"), (~value >> 3) & 1);
}
static void omap_ulpd_pm_write(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
int offset = addr - s->ulpd_pm_base;
int64_t now, ticks;
int div, mult;
static const int bypass_div[4] = { 1, 2, 4, 4 };
uint16_t diff;
switch (offset) {
case 0x00: /* COUNTER_32_LSB */
case 0x04: /* COUNTER_32_MSB */
case 0x08: /* COUNTER_HIGH_FREQ_LSB */
case 0x0c: /* COUNTER_HIGH_FREQ_MSB */
case 0x14: /* IT_STATUS */
case 0x40: /* STATUS_REQ */
OMAP_RO_REG(addr);
break;
case 0x10: /* GAUGING_CTRL */
/* Bits 0 and 1 seem to be confused in the OMAP 310 TRM */
if ((s->ulpd_pm_regs[offset >> 2] ^ value) & 1) {
now = qemu_get_clock(vm_clock);
if (value & 1)
s->ulpd_gauge_start = now;
else {
now -= s->ulpd_gauge_start;
/* 32-kHz ticks */
ticks = muldiv64(now, 32768, ticks_per_sec);
s->ulpd_pm_regs[0x00 >> 2] = (ticks >> 0) & 0xffff;
s->ulpd_pm_regs[0x04 >> 2] = (ticks >> 16) & 0xffff;
if (ticks >> 32) /* OVERFLOW_32K */
s->ulpd_pm_regs[0x14 >> 2] |= 1 << 2;
/* High frequency ticks */
ticks = muldiv64(now, 12000000, ticks_per_sec);
s->ulpd_pm_regs[0x08 >> 2] = (ticks >> 0) & 0xffff;
s->ulpd_pm_regs[0x0c >> 2] = (ticks >> 16) & 0xffff;
if (ticks >> 32) /* OVERFLOW_HI_FREQ */
s->ulpd_pm_regs[0x14 >> 2] |= 1 << 1;
s->ulpd_pm_regs[0x14 >> 2] |= 1 << 0; /* IT_GAUGING */
qemu_irq_raise(s->irq[1][OMAP_INT_GAUGE_32K]);
}
}
s->ulpd_pm_regs[offset >> 2] = value;
break;
case 0x18: /* Reserved */
case 0x1c: /* Reserved */
case 0x20: /* Reserved */
case 0x28: /* Reserved */
case 0x2c: /* Reserved */
OMAP_BAD_REG(addr);
case 0x24: /* SETUP_ANALOG_CELL3_ULPD1 */
case 0x38: /* COUNTER_32_FIQ */
case 0x48: /* LOCL_TIME */
case 0x50: /* POWER_CTRL */
s->ulpd_pm_regs[offset >> 2] = value;
break;
case 0x30: /* CLOCK_CTRL */
diff = s->ulpd_pm_regs[offset >> 2] ^ value;
s->ulpd_pm_regs[offset >> 2] = value & 0x3f;
omap_ulpd_clk_update(s, diff, value);
break;
case 0x34: /* SOFT_REQ */
diff = s->ulpd_pm_regs[offset >> 2] ^ value;
s->ulpd_pm_regs[offset >> 2] = value & 0x1f;
omap_ulpd_req_update(s, diff, value);
break;
case 0x3c: /* DPLL_CTRL */
/* XXX: OMAP310 TRM claims bit 3 is PLL_ENABLE, and bit 4 is
* omitted altogether, probably a typo. */
/* This register has identical semantics with DPLL(1:3) control
* registers, see omap_dpll_write() */
diff = s->ulpd_pm_regs[offset >> 2] & value;
s->ulpd_pm_regs[offset >> 2] = value & 0x2fff;
if (diff & (0x3ff << 2)) {
if (value & (1 << 4)) { /* PLL_ENABLE */
div = ((value >> 5) & 3) + 1; /* PLL_DIV */
mult = MIN((value >> 7) & 0x1f, 1); /* PLL_MULT */
} else {
div = bypass_div[((value >> 2) & 3)]; /* BYPASS_DIV */
mult = 1;
}
omap_clk_setrate(omap_findclk(s, "dpll4"), div, mult);
}
/* Enter the desired mode. */
s->ulpd_pm_regs[offset >> 2] =
(s->ulpd_pm_regs[offset >> 2] & 0xfffe) |
((s->ulpd_pm_regs[offset >> 2] >> 4) & 1);
/* Act as if the lock is restored. */
s->ulpd_pm_regs[offset >> 2] |= 2;
break;
case 0x4c: /* APLL_CTRL */
diff = s->ulpd_pm_regs[offset >> 2] & value;
s->ulpd_pm_regs[offset >> 2] = value & 0xf;
if (diff & (1 << 0)) /* APLL_NDPLL_SWITCH */
omap_clk_reparent(omap_findclk(s, "ck_48m"), omap_findclk(s,
(value & (1 << 0)) ? "apll" : "dpll4"));
break;
default:
OMAP_BAD_REG(addr);
}
}
static CPUReadMemoryFunc *omap_ulpd_pm_readfn[] = {
omap_badwidth_read16,
omap_ulpd_pm_read,
omap_badwidth_read16,
};
static CPUWriteMemoryFunc *omap_ulpd_pm_writefn[] = {
omap_badwidth_write16,
omap_ulpd_pm_write,
omap_badwidth_write16,
};
static void omap_ulpd_pm_reset(struct omap_mpu_state_s *mpu)
{
mpu->ulpd_pm_regs[0x00 >> 2] = 0x0001;
mpu->ulpd_pm_regs[0x04 >> 2] = 0x0000;
mpu->ulpd_pm_regs[0x08 >> 2] = 0x0001;
mpu->ulpd_pm_regs[0x0c >> 2] = 0x0000;
mpu->ulpd_pm_regs[0x10 >> 2] = 0x0000;
mpu->ulpd_pm_regs[0x18 >> 2] = 0x01;
mpu->ulpd_pm_regs[0x1c >> 2] = 0x01;
mpu->ulpd_pm_regs[0x20 >> 2] = 0x01;
mpu->ulpd_pm_regs[0x24 >> 2] = 0x03ff;
mpu->ulpd_pm_regs[0x28 >> 2] = 0x01;
mpu->ulpd_pm_regs[0x2c >> 2] = 0x01;
omap_ulpd_clk_update(mpu, mpu->ulpd_pm_regs[0x30 >> 2], 0x0000);
mpu->ulpd_pm_regs[0x30 >> 2] = 0x0000;
omap_ulpd_req_update(mpu, mpu->ulpd_pm_regs[0x34 >> 2], 0x0000);
mpu->ulpd_pm_regs[0x34 >> 2] = 0x0000;
mpu->ulpd_pm_regs[0x38 >> 2] = 0x0001;
mpu->ulpd_pm_regs[0x3c >> 2] = 0x2211;
mpu->ulpd_pm_regs[0x40 >> 2] = 0x0000; /* FIXME: dump a real STATUS_REQ */
mpu->ulpd_pm_regs[0x48 >> 2] = 0x960;
mpu->ulpd_pm_regs[0x4c >> 2] = 0x08;
mpu->ulpd_pm_regs[0x50 >> 2] = 0x08;
omap_clk_setrate(omap_findclk(mpu, "dpll4"), 1, 4);
omap_clk_reparent(omap_findclk(mpu, "ck_48m"), omap_findclk(mpu, "dpll4"));
}
static void omap_ulpd_pm_init(target_phys_addr_t base,
struct omap_mpu_state_s *mpu)
{
int iomemtype = cpu_register_io_memory(0, omap_ulpd_pm_readfn,
omap_ulpd_pm_writefn, mpu);
mpu->ulpd_pm_base = base;
cpu_register_physical_memory(mpu->ulpd_pm_base, 0x800, iomemtype);
omap_ulpd_pm_reset(mpu);
}
/* OMAP Pin Configuration */
static uint32_t omap_pin_cfg_read(void *opaque, target_phys_addr_t addr)
{
struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
int offset = addr - s->pin_cfg_base;
switch (offset) {
case 0x00: /* FUNC_MUX_CTRL_0 */
case 0x04: /* FUNC_MUX_CTRL_1 */
case 0x08: /* FUNC_MUX_CTRL_2 */
return s->func_mux_ctrl[offset >> 2];
case 0x0c: /* COMP_MODE_CTRL_0 */
return s->comp_mode_ctrl[0];
case 0x10: /* FUNC_MUX_CTRL_3 */
case 0x14: /* FUNC_MUX_CTRL_4 */
case 0x18: /* FUNC_MUX_CTRL_5 */
case 0x1c: /* FUNC_MUX_CTRL_6 */
case 0x20: /* FUNC_MUX_CTRL_7 */
case 0x24: /* FUNC_MUX_CTRL_8 */
case 0x28: /* FUNC_MUX_CTRL_9 */
case 0x2c: /* FUNC_MUX_CTRL_A */
case 0x30: /* FUNC_MUX_CTRL_B */
case 0x34: /* FUNC_MUX_CTRL_C */
case 0x38: /* FUNC_MUX_CTRL_D */
return s->func_mux_ctrl[(offset >> 2) - 1];
case 0x40: /* PULL_DWN_CTRL_0 */
case 0x44: /* PULL_DWN_CTRL_1 */
case 0x48: /* PULL_DWN_CTRL_2 */
case 0x4c: /* PULL_DWN_CTRL_3 */
return s->pull_dwn_ctrl[(offset & 0xf) >> 2];
case 0x50: /* GATE_INH_CTRL_0 */
return s->gate_inh_ctrl[0];
case 0x60: /* VOLTAGE_CTRL_0 */
return s->voltage_ctrl[0];
case 0x70: /* TEST_DBG_CTRL_0 */
return s->test_dbg_ctrl[0];
case 0x80: /* MOD_CONF_CTRL_0 */
return s->mod_conf_ctrl[0];
}
OMAP_BAD_REG(addr);
return 0;
}
static inline void omap_pin_funcmux0_update(struct omap_mpu_state_s *s,
uint32_t diff, uint32_t value)
{
if (s->compat1509) {
if (diff & (1 << 9)) /* BLUETOOTH */
omap_clk_onoff(omap_findclk(s, "bt_mclk_out"),
(~value >> 9) & 1);
if (diff & (1 << 7)) /* USB.CLKO */
omap_clk_onoff(omap_findclk(s, "usb.clko"),
(value >> 7) & 1);
}
}
static inline void omap_pin_funcmux1_update(struct omap_mpu_state_s *s,
uint32_t diff, uint32_t value)
{
if (s->compat1509) {
if (diff & (1 << 31)) /* MCBSP3_CLK_HIZ_DI */
omap_clk_onoff(omap_findclk(s, "mcbsp3.clkx"),
(value >> 31) & 1);
if (diff & (1 << 1)) /* CLK32K */
omap_clk_onoff(omap_findclk(s, "clk32k_out"),
(~value >> 1) & 1);
}
}
static inline void omap_pin_modconf1_update(struct omap_mpu_state_s *s,
uint32_t diff, uint32_t value)
{
if (diff & (1 << 31)) /* CONF_MOD_UART3_CLK_MODE_R */
omap_clk_reparent(omap_findclk(s, "uart3_ck"),
omap_findclk(s, ((value >> 31) & 1) ?
"ck_48m" : "armper_ck"));
if (diff & (1 << 30)) /* CONF_MOD_UART2_CLK_MODE_R */
omap_clk_reparent(omap_findclk(s, "uart2_ck"),
omap_findclk(s, ((value >> 30) & 1) ?
"ck_48m" : "armper_ck"));
if (diff & (1 << 29)) /* CONF_MOD_UART1_CLK_MODE_R */
omap_clk_reparent(omap_findclk(s, "uart1_ck"),
omap_findclk(s, ((value >> 29) & 1) ?
"ck_48m" : "armper_ck"));
if (diff & (1 << 23)) /* CONF_MOD_MMC_SD_CLK_REQ_R */
omap_clk_reparent(omap_findclk(s, "mmc_ck"),
omap_findclk(s, ((value >> 23) & 1) ?
"ck_48m" : "armper_ck"));
if (diff & (1 << 12)) /* CONF_MOD_COM_MCLK_12_48_S */
omap_clk_reparent(omap_findclk(s, "com_mclk_out"),
omap_findclk(s, ((value >> 12) & 1) ?
"ck_48m" : "armper_ck"));
if (diff & (1 << 9)) /* CONF_MOD_USB_HOST_HHC_UHO */
omap_clk_onoff(omap_findclk(s, "usb_hhc_ck"), (value >> 9) & 1);
}
static void omap_pin_cfg_write(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
int offset = addr - s->pin_cfg_base;
uint32_t diff;
switch (offset) {
case 0x00: /* FUNC_MUX_CTRL_0 */
diff = s->func_mux_ctrl[offset >> 2] ^ value;
s->func_mux_ctrl[offset >> 2] = value;
omap_pin_funcmux0_update(s, diff, value);
return;
case 0x04: /* FUNC_MUX_CTRL_1 */
diff = s->func_mux_ctrl[offset >> 2] ^ value;
s->func_mux_ctrl[offset >> 2] = value;
omap_pin_funcmux1_update(s, diff, value);
return;
case 0x08: /* FUNC_MUX_CTRL_2 */
s->func_mux_ctrl[offset >> 2] = value;
return;
case 0x0c: /* COMP_MODE_CTRL_0 */
s->comp_mode_ctrl[0] = value;
s->compat1509 = (value != 0x0000eaef);
omap_pin_funcmux0_update(s, ~0, s->func_mux_ctrl[0]);
omap_pin_funcmux1_update(s, ~0, s->func_mux_ctrl[1]);
return;
case 0x10: /* FUNC_MUX_CTRL_3 */
case 0x14: /* FUNC_MUX_CTRL_4 */
case 0x18: /* FUNC_MUX_CTRL_5 */
case 0x1c: /* FUNC_MUX_CTRL_6 */
case 0x20: /* FUNC_MUX_CTRL_7 */
case 0x24: /* FUNC_MUX_CTRL_8 */
case 0x28: /* FUNC_MUX_CTRL_9 */
case 0x2c: /* FUNC_MUX_CTRL_A */
case 0x30: /* FUNC_MUX_CTRL_B */
case 0x34: /* FUNC_MUX_CTRL_C */
case 0x38: /* FUNC_MUX_CTRL_D */
s->func_mux_ctrl[(offset >> 2) - 1] = value;
return;
case 0x40: /* PULL_DWN_CTRL_0 */
case 0x44: /* PULL_DWN_CTRL_1 */
case 0x48: /* PULL_DWN_CTRL_2 */
case 0x4c: /* PULL_DWN_CTRL_3 */
s->pull_dwn_ctrl[(offset & 0xf) >> 2] = value;
return;
case 0x50: /* GATE_INH_CTRL_0 */
s->gate_inh_ctrl[0] = value;
return;
case 0x60: /* VOLTAGE_CTRL_0 */
s->voltage_ctrl[0] = value;
return;
case 0x70: /* TEST_DBG_CTRL_0 */
s->test_dbg_ctrl[0] = value;
return;
case 0x80: /* MOD_CONF_CTRL_0 */
diff = s->mod_conf_ctrl[0] ^ value;
s->mod_conf_ctrl[0] = value;
omap_pin_modconf1_update(s, diff, value);
return;
default:
OMAP_BAD_REG(addr);
}
}
static CPUReadMemoryFunc *omap_pin_cfg_readfn[] = {
omap_badwidth_read32,
omap_badwidth_read32,
omap_pin_cfg_read,
};
static CPUWriteMemoryFunc *omap_pin_cfg_writefn[] = {
omap_badwidth_write32,
omap_badwidth_write32,
omap_pin_cfg_write,
};
static void omap_pin_cfg_reset(struct omap_mpu_state_s *mpu)
{
/* Start in Compatibility Mode. */
mpu->compat1509 = 1;
omap_pin_funcmux0_update(mpu, mpu->func_mux_ctrl[0], 0);
omap_pin_funcmux1_update(mpu, mpu->func_mux_ctrl[1], 0);
omap_pin_modconf1_update(mpu, mpu->mod_conf_ctrl[0], 0);
memset(mpu->func_mux_ctrl, 0, sizeof(mpu->func_mux_ctrl));
memset(mpu->comp_mode_ctrl, 0, sizeof(mpu->comp_mode_ctrl));
memset(mpu->pull_dwn_ctrl, 0, sizeof(mpu->pull_dwn_ctrl));
memset(mpu->gate_inh_ctrl, 0, sizeof(mpu->gate_inh_ctrl));
memset(mpu->voltage_ctrl, 0, sizeof(mpu->voltage_ctrl));
memset(mpu->test_dbg_ctrl, 0, sizeof(mpu->test_dbg_ctrl));
memset(mpu->mod_conf_ctrl, 0, sizeof(mpu->mod_conf_ctrl));
}
static void omap_pin_cfg_init(target_phys_addr_t base,
struct omap_mpu_state_s *mpu)
{
int iomemtype = cpu_register_io_memory(0, omap_pin_cfg_readfn,
omap_pin_cfg_writefn, mpu);
mpu->pin_cfg_base = base;
cpu_register_physical_memory(mpu->pin_cfg_base, 0x800, iomemtype);
omap_pin_cfg_reset(mpu);
}
/* Device Identification, Die Identification */
static uint32_t omap_id_read(void *opaque, target_phys_addr_t addr)
{
struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
switch (addr) {
case 0xfffe1800: /* DIE_ID_LSB */
return 0xc9581f0e;
case 0xfffe1804: /* DIE_ID_MSB */
return 0xa8858bfa;
case 0xfffe2000: /* PRODUCT_ID_LSB */
return 0x00aaaafc;
case 0xfffe2004: /* PRODUCT_ID_MSB */
return 0xcafeb574;
case 0xfffed400: /* JTAG_ID_LSB */
switch (s->mpu_model) {
case omap310:
return 0x03310315;
case omap1510:
return 0x03310115;
}
break;
case 0xfffed404: /* JTAG_ID_MSB */
switch (s->mpu_model) {
case omap310:
return 0xfb57402f;
case omap1510:
return 0xfb47002f;
}
break;
}
OMAP_BAD_REG(addr);
return 0;
}
static void omap_id_write(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
OMAP_BAD_REG(addr);
}
static CPUReadMemoryFunc *omap_id_readfn[] = {
omap_badwidth_read32,
omap_badwidth_read32,
omap_id_read,
};
static CPUWriteMemoryFunc *omap_id_writefn[] = {
omap_badwidth_write32,
omap_badwidth_write32,
omap_id_write,
};
static void omap_id_init(struct omap_mpu_state_s *mpu)
{
int iomemtype = cpu_register_io_memory(0, omap_id_readfn,
omap_id_writefn, mpu);
cpu_register_physical_memory(0xfffe1800, 0x800, iomemtype);
cpu_register_physical_memory(0xfffed400, 0x100, iomemtype);
if (!cpu_is_omap15xx(mpu))
cpu_register_physical_memory(0xfffe2000, 0x800, iomemtype);
}
/* MPUI Control (Dummy) */
static uint32_t omap_mpui_read(void *opaque, target_phys_addr_t addr)
{
struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
int offset = addr - s->mpui_base;
switch (offset) {
case 0x00: /* CTRL */
return s->mpui_ctrl;
case 0x04: /* DEBUG_ADDR */
return 0x01ffffff;
case 0x08: /* DEBUG_DATA */
return 0xffffffff;
case 0x0c: /* DEBUG_FLAG */
return 0x00000800;
case 0x10: /* STATUS */
return 0x00000000;
/* Not in OMAP310 */
case 0x14: /* DSP_STATUS */
case 0x18: /* DSP_BOOT_CONFIG */
return 0x00000000;
case 0x1c: /* DSP_MPUI_CONFIG */
return 0x0000ffff;
}
OMAP_BAD_REG(addr);
return 0;
}
static void omap_mpui_write(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
int offset = addr - s->mpui_base;
switch (offset) {
case 0x00: /* CTRL */
s->mpui_ctrl = value & 0x007fffff;
break;
case 0x04: /* DEBUG_ADDR */
case 0x08: /* DEBUG_DATA */
case 0x0c: /* DEBUG_FLAG */
case 0x10: /* STATUS */
/* Not in OMAP310 */
case 0x14: /* DSP_STATUS */
OMAP_RO_REG(addr);
case 0x18: /* DSP_BOOT_CONFIG */
case 0x1c: /* DSP_MPUI_CONFIG */
break;
default:
OMAP_BAD_REG(addr);
}
}
static CPUReadMemoryFunc *omap_mpui_readfn[] = {
omap_badwidth_read32,
omap_badwidth_read32,
omap_mpui_read,
};
static CPUWriteMemoryFunc *omap_mpui_writefn[] = {
omap_badwidth_write32,
omap_badwidth_write32,
omap_mpui_write,
};
static void omap_mpui_reset(struct omap_mpu_state_s *s)
{
s->mpui_ctrl = 0x0003ff1b;
}
static void omap_mpui_init(target_phys_addr_t base,
struct omap_mpu_state_s *mpu)
{
int iomemtype = cpu_register_io_memory(0, omap_mpui_readfn,
omap_mpui_writefn, mpu);
mpu->mpui_base = base;
cpu_register_physical_memory(mpu->mpui_base, 0x100, iomemtype);
omap_mpui_reset(mpu);
}
/* TIPB Bridges */
struct omap_tipb_bridge_s {
target_phys_addr_t base;
qemu_irq abort;
int width_intr;
uint16_t control;
uint16_t alloc;
uint16_t buffer;
uint16_t enh_control;
};
static uint32_t omap_tipb_bridge_read(void *opaque, target_phys_addr_t addr)
{
struct omap_tipb_bridge_s *s = (struct omap_tipb_bridge_s *) opaque;
int offset = addr - s->base;
switch (offset) {
case 0x00: /* TIPB_CNTL */
return s->control;
case 0x04: /* TIPB_BUS_ALLOC */
return s->alloc;
case 0x08: /* MPU_TIPB_CNTL */
return s->buffer;
case 0x0c: /* ENHANCED_TIPB_CNTL */
return s->enh_control;
case 0x10: /* ADDRESS_DBG */
case 0x14: /* DATA_DEBUG_LOW */
case 0x18: /* DATA_DEBUG_HIGH */
return 0xffff;
case 0x1c: /* DEBUG_CNTR_SIG */
return 0x00f8;
}
OMAP_BAD_REG(addr);
return 0;
}
static void omap_tipb_bridge_write(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
struct omap_tipb_bridge_s *s = (struct omap_tipb_bridge_s *) opaque;
int offset = addr - s->base;
switch (offset) {
case 0x00: /* TIPB_CNTL */
s->control = value & 0xffff;
break;
case 0x04: /* TIPB_BUS_ALLOC */
s->alloc = value & 0x003f;
break;
case 0x08: /* MPU_TIPB_CNTL */
s->buffer = value & 0x0003;
break;
case 0x0c: /* ENHANCED_TIPB_CNTL */
s->width_intr = !(value & 2);
s->enh_control = value & 0x000f;
break;
case 0x10: /* ADDRESS_DBG */
case 0x14: /* DATA_DEBUG_LOW */
case 0x18: /* DATA_DEBUG_HIGH */
case 0x1c: /* DEBUG_CNTR_SIG */
OMAP_RO_REG(addr);
break;
default:
OMAP_BAD_REG(addr);
}
}
static CPUReadMemoryFunc *omap_tipb_bridge_readfn[] = {
omap_badwidth_read16,
omap_tipb_bridge_read,
omap_tipb_bridge_read,
};
static CPUWriteMemoryFunc *omap_tipb_bridge_writefn[] = {
omap_badwidth_write16,
omap_tipb_bridge_write,
omap_tipb_bridge_write,
};
static void omap_tipb_bridge_reset(struct omap_tipb_bridge_s *s)
{
s->control = 0xffff;
s->alloc = 0x0009;
s->buffer = 0x0000;
s->enh_control = 0x000f;
}
struct omap_tipb_bridge_s *omap_tipb_bridge_init(target_phys_addr_t base,
qemu_irq abort_irq, omap_clk clk)
{
int iomemtype;
struct omap_tipb_bridge_s *s = (struct omap_tipb_bridge_s *)
qemu_mallocz(sizeof(struct omap_tipb_bridge_s));
s->abort = abort_irq;
s->base = base;
omap_tipb_bridge_reset(s);
iomemtype = cpu_register_io_memory(0, omap_tipb_bridge_readfn,
omap_tipb_bridge_writefn, s);
cpu_register_physical_memory(s->base, 0x100, iomemtype);
return s;
}
/* Dummy Traffic Controller's Memory Interface */
static uint32_t omap_tcmi_read(void *opaque, target_phys_addr_t addr)
{
struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
int offset = addr - s->tcmi_base;
uint32_t ret;
switch (offset) {
case 0xfffecc00: /* IMIF_PRIO */
case 0xfffecc04: /* EMIFS_PRIO */
case 0xfffecc08: /* EMIFF_PRIO */
case 0xfffecc0c: /* EMIFS_CONFIG */
case 0xfffecc10: /* EMIFS_CS0_CONFIG */
case 0xfffecc14: /* EMIFS_CS1_CONFIG */
case 0xfffecc18: /* EMIFS_CS2_CONFIG */
case 0xfffecc1c: /* EMIFS_CS3_CONFIG */
case 0xfffecc24: /* EMIFF_MRS */
case 0xfffecc28: /* TIMEOUT1 */
case 0xfffecc2c: /* TIMEOUT2 */
case 0xfffecc30: /* TIMEOUT3 */
case 0xfffecc3c: /* EMIFF_SDRAM_CONFIG_2 */
case 0xfffecc40: /* EMIFS_CFG_DYN_WAIT */
return s->tcmi_regs[offset >> 2];
case 0xfffecc20: /* EMIFF_SDRAM_CONFIG */
ret = s->tcmi_regs[offset >> 2];
s->tcmi_regs[offset >> 2] &= ~1; /* XXX: Clear SLRF on SDRAM access */
/* XXX: We can try using the VGA_DIRTY flag for this */
return ret;
}
OMAP_BAD_REG(addr);
return 0;
}
static void omap_tcmi_write(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
int offset = addr - s->tcmi_base;
switch (offset) {
case 0xfffecc00: /* IMIF_PRIO */
case 0xfffecc04: /* EMIFS_PRIO */
case 0xfffecc08: /* EMIFF_PRIO */
case 0xfffecc10: /* EMIFS_CS0_CONFIG */
case 0xfffecc14: /* EMIFS_CS1_CONFIG */
case 0xfffecc18: /* EMIFS_CS2_CONFIG */
case 0xfffecc1c: /* EMIFS_CS3_CONFIG */
case 0xfffecc20: /* EMIFF_SDRAM_CONFIG */
case 0xfffecc24: /* EMIFF_MRS */
case 0xfffecc28: /* TIMEOUT1 */
case 0xfffecc2c: /* TIMEOUT2 */
case 0xfffecc30: /* TIMEOUT3 */
case 0xfffecc3c: /* EMIFF_SDRAM_CONFIG_2 */
case 0xfffecc40: /* EMIFS_CFG_DYN_WAIT */
s->tcmi_regs[offset >> 2] = value;
break;
case 0xfffecc0c: /* EMIFS_CONFIG */
s->tcmi_regs[offset >> 2] = (value & 0xf) | (1 << 4);
break;
default:
OMAP_BAD_REG(addr);
}
}
static CPUReadMemoryFunc *omap_tcmi_readfn[] = {
omap_badwidth_read32,
omap_badwidth_read32,
omap_tcmi_read,
};
static CPUWriteMemoryFunc *omap_tcmi_writefn[] = {
omap_badwidth_write32,
omap_badwidth_write32,
omap_tcmi_write,
};
static void omap_tcmi_reset(struct omap_mpu_state_s *mpu)
{
mpu->tcmi_regs[0x00 >> 2] = 0x00000000;
mpu->tcmi_regs[0x04 >> 2] = 0x00000000;
mpu->tcmi_regs[0x08 >> 2] = 0x00000000;
mpu->tcmi_regs[0x0c >> 2] = 0x00000010;
mpu->tcmi_regs[0x10 >> 2] = 0x0010fffb;
mpu->tcmi_regs[0x14 >> 2] = 0x0010fffb;
mpu->tcmi_regs[0x18 >> 2] = 0x0010fffb;
mpu->tcmi_regs[0x1c >> 2] = 0x0010fffb;
mpu->tcmi_regs[0x20 >> 2] = 0x00618800;
mpu->tcmi_regs[0x24 >> 2] = 0x00000037;
mpu->tcmi_regs[0x28 >> 2] = 0x00000000;
mpu->tcmi_regs[0x2c >> 2] = 0x00000000;
mpu->tcmi_regs[0x30 >> 2] = 0x00000000;
mpu->tcmi_regs[0x3c >> 2] = 0x00000003;
mpu->tcmi_regs[0x40 >> 2] = 0x00000000;
}
static void omap_tcmi_init(target_phys_addr_t base,
struct omap_mpu_state_s *mpu)
{
int iomemtype = cpu_register_io_memory(0, omap_tcmi_readfn,
omap_tcmi_writefn, mpu);
mpu->tcmi_base = base;
cpu_register_physical_memory(mpu->tcmi_base, 0x100, iomemtype);
omap_tcmi_reset(mpu);
}
/* Digital phase-locked loops control */
static uint32_t omap_dpll_read(void *opaque, target_phys_addr_t addr)
{
struct dpll_ctl_s *s = (struct dpll_ctl_s *) opaque;
int offset = addr - s->base;
if (offset == 0x00) /* CTL_REG */
return s->mode;
OMAP_BAD_REG(addr);
return 0;
}
static void omap_dpll_write(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
struct dpll_ctl_s *s = (struct dpll_ctl_s *) opaque;
uint16_t diff;
int offset = addr - s->base;
static const int bypass_div[4] = { 1, 2, 4, 4 };
int div, mult;
if (offset == 0x00) { /* CTL_REG */
/* See omap_ulpd_pm_write() too */
diff = s->mode & value;
s->mode = value & 0x2fff;
if (diff & (0x3ff << 2)) {
if (value & (1 << 4)) { /* PLL_ENABLE */
div = ((value >> 5) & 3) + 1; /* PLL_DIV */
mult = MIN((value >> 7) & 0x1f, 1); /* PLL_MULT */
} else {
div = bypass_div[((value >> 2) & 3)]; /* BYPASS_DIV */
mult = 1;
}
omap_clk_setrate(s->dpll, div, mult);
}
/* Enter the desired mode. */
s->mode = (s->mode & 0xfffe) | ((s->mode >> 4) & 1);
/* Act as if the lock is restored. */
s->mode |= 2;
} else {
OMAP_BAD_REG(addr);
}
}
static CPUReadMemoryFunc *omap_dpll_readfn[] = {
omap_badwidth_read16,
omap_dpll_read,
omap_badwidth_read16,
};
static CPUWriteMemoryFunc *omap_dpll_writefn[] = {
omap_badwidth_write16,
omap_dpll_write,
omap_badwidth_write16,
};
static void omap_dpll_reset(struct dpll_ctl_s *s)
{
s->mode = 0x2002;
omap_clk_setrate(s->dpll, 1, 1);
}
static void omap_dpll_init(struct dpll_ctl_s *s, target_phys_addr_t base,
omap_clk clk)
{
int iomemtype = cpu_register_io_memory(0, omap_dpll_readfn,
omap_dpll_writefn, s);
s->base = base;
s->dpll = clk;
omap_dpll_reset(s);
cpu_register_physical_memory(s->base, 0x100, iomemtype);
}
/* UARTs */
struct omap_uart_s {
SerialState *serial; /* TODO */
};
static void omap_uart_reset(struct omap_uart_s *s)
{
}
struct omap_uart_s *omap_uart_init(target_phys_addr_t base,
qemu_irq irq, omap_clk clk, CharDriverState *chr)
{
struct omap_uart_s *s = (struct omap_uart_s *)
qemu_mallocz(sizeof(struct omap_uart_s));
if (chr)
s->serial = serial_mm_init(base, 2, irq, chr, 1);
return s;
}
/* MPU Clock/Reset/Power Mode Control */
static uint32_t omap_clkm_read(void *opaque, target_phys_addr_t addr)
{
struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
int offset = addr - s->clkm.mpu_base;
switch (offset) {
case 0x00: /* ARM_CKCTL */
return s->clkm.arm_ckctl;
case 0x04: /* ARM_IDLECT1 */
return s->clkm.arm_idlect1;
case 0x08: /* ARM_IDLECT2 */
return s->clkm.arm_idlect2;
case 0x0c: /* ARM_EWUPCT */
return s->clkm.arm_ewupct;
case 0x10: /* ARM_RSTCT1 */
return s->clkm.arm_rstct1;
case 0x14: /* ARM_RSTCT2 */
return s->clkm.arm_rstct2;
case 0x18: /* ARM_SYSST */
return (s->clkm.clocking_scheme < 11) | s->clkm.cold_start;
case 0x1c: /* ARM_CKOUT1 */
return s->clkm.arm_ckout1;
case 0x20: /* ARM_CKOUT2 */
break;
}
OMAP_BAD_REG(addr);
return 0;
}
static inline void omap_clkm_ckctl_update(struct omap_mpu_state_s *s,
uint16_t diff, uint16_t value)
{
omap_clk clk;
if (diff & (1 << 14)) { /* ARM_INTHCK_SEL */
if (value & (1 << 14))
/* Reserved */;
else {
clk = omap_findclk(s, "arminth_ck");
omap_clk_reparent(clk, omap_findclk(s, "tc_ck"));
}
}
if (diff & (1 << 12)) { /* ARM_TIMXO */
clk = omap_findclk(s, "armtim_ck");
if (value & (1 << 12))
omap_clk_reparent(clk, omap_findclk(s, "clkin"));
else
omap_clk_reparent(clk, omap_findclk(s, "ck_gen1"));
}
/* XXX: en_dspck */
if (diff & (3 << 10)) { /* DSPMMUDIV */
clk = omap_findclk(s, "dspmmu_ck");
omap_clk_setrate(clk, 1 << ((value >> 10) & 3), 1);
}
if (diff & (3 << 8)) { /* TCDIV */
clk = omap_findclk(s, "tc_ck");
omap_clk_setrate(clk, 1 << ((value >> 8) & 3), 1);
}
if (diff & (3 << 6)) { /* DSPDIV */
clk = omap_findclk(s, "dsp_ck");
omap_clk_setrate(clk, 1 << ((value >> 6) & 3), 1);
}
if (diff & (3 << 4)) { /* ARMDIV */
clk = omap_findclk(s, "arm_ck");
omap_clk_setrate(clk, 1 << ((value >> 4) & 3), 1);
}
if (diff & (3 << 2)) { /* LCDDIV */
clk = omap_findclk(s, "lcd_ck");
omap_clk_setrate(clk, 1 << ((value >> 2) & 3), 1);
}
if (diff & (3 << 0)) { /* PERDIV */
clk = omap_findclk(s, "armper_ck");
omap_clk_setrate(clk, 1 << ((value >> 0) & 3), 1);
}
}
static inline void omap_clkm_idlect1_update(struct omap_mpu_state_s *s,
uint16_t diff, uint16_t value)
{
omap_clk clk;
if (value & (1 << 11)) /* SETARM_IDLE */
cpu_interrupt(s->env, CPU_INTERRUPT_HALT);
if (!(value & (1 << 10))) /* WKUP_MODE */
qemu_system_shutdown_request(); /* XXX: disable wakeup from IRQ */
#define SET_CANIDLE(clock, bit) \
if (diff & (1 << bit)) { \
clk = omap_findclk(s, clock); \
omap_clk_canidle(clk, (value >> bit) & 1); \
}
SET_CANIDLE("mpuwd_ck", 0) /* IDLWDT_ARM */
SET_CANIDLE("armxor_ck", 1) /* IDLXORP_ARM */
SET_CANIDLE("mpuper_ck", 2) /* IDLPER_ARM */
SET_CANIDLE("lcd_ck", 3) /* IDLLCD_ARM */
SET_CANIDLE("lb_ck", 4) /* IDLLB_ARM */
SET_CANIDLE("hsab_ck", 5) /* IDLHSAB_ARM */
SET_CANIDLE("tipb_ck", 6) /* IDLIF_ARM */
SET_CANIDLE("dma_ck", 6) /* IDLIF_ARM */
SET_CANIDLE("tc_ck", 6) /* IDLIF_ARM */
SET_CANIDLE("dpll1", 7) /* IDLDPLL_ARM */
SET_CANIDLE("dpll2", 7) /* IDLDPLL_ARM */
SET_CANIDLE("dpll3", 7) /* IDLDPLL_ARM */
SET_CANIDLE("mpui_ck", 8) /* IDLAPI_ARM */
SET_CANIDLE("armtim_ck", 9) /* IDLTIM_ARM */
}
static inline void omap_clkm_idlect2_update(struct omap_mpu_state_s *s,
uint16_t diff, uint16_t value)
{
omap_clk clk;
#define SET_ONOFF(clock, bit) \
if (diff & (1 << bit)) { \
clk = omap_findclk(s, clock); \
omap_clk_onoff(clk, (value >> bit) & 1); \
}
SET_ONOFF("mpuwd_ck", 0) /* EN_WDTCK */
SET_ONOFF("armxor_ck", 1) /* EN_XORPCK */
SET_ONOFF("mpuper_ck", 2) /* EN_PERCK */
SET_ONOFF("lcd_ck", 3) /* EN_LCDCK */
SET_ONOFF("lb_ck", 4) /* EN_LBCK */
SET_ONOFF("hsab_ck", 5) /* EN_HSABCK */
SET_ONOFF("mpui_ck", 6) /* EN_APICK */
SET_ONOFF("armtim_ck", 7) /* EN_TIMCK */
SET_CANIDLE("dma_ck", 8) /* DMACK_REQ */
SET_ONOFF("arm_gpio_ck", 9) /* EN_GPIOCK */
SET_ONOFF("lbfree_ck", 10) /* EN_LBFREECK */
}
static inline void omap_clkm_ckout1_update(struct omap_mpu_state_s *s,
uint16_t diff, uint16_t value)
{
omap_clk clk;
if (diff & (3 << 4)) { /* TCLKOUT */
clk = omap_findclk(s, "tclk_out");
switch ((value >> 4) & 3) {
case 1:
omap_clk_reparent(clk, omap_findclk(s, "ck_gen3"));
omap_clk_onoff(clk, 1);
break;
case 2:
omap_clk_reparent(clk, omap_findclk(s, "tc_ck"));
omap_clk_onoff(clk, 1);
break;
default:
omap_clk_onoff(clk, 0);
}
}
if (diff & (3 << 2)) { /* DCLKOUT */
clk = omap_findclk(s, "dclk_out");
switch ((value >> 2) & 3) {
case 0:
omap_clk_reparent(clk, omap_findclk(s, "dspmmu_ck"));
break;
case 1:
omap_clk_reparent(clk, omap_findclk(s, "ck_gen2"));
break;
case 2:
omap_clk_reparent(clk, omap_findclk(s, "dsp_ck"));
break;
case 3:
omap_clk_reparent(clk, omap_findclk(s, "ck_ref14"));
break;
}
}
if (diff & (3 << 0)) { /* ACLKOUT */
clk = omap_findclk(s, "aclk_out");
switch ((value >> 0) & 3) {
case 1:
omap_clk_reparent(clk, omap_findclk(s, "ck_gen1"));
omap_clk_onoff(clk, 1);
break;
case 2:
omap_clk_reparent(clk, omap_findclk(s, "arm_ck"));
omap_clk_onoff(clk, 1);
break;
case 3:
omap_clk_reparent(clk, omap_findclk(s, "ck_ref14"));
omap_clk_onoff(clk, 1);
break;
default:
omap_clk_onoff(clk, 0);
}
}
}
static void omap_clkm_write(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
int offset = addr - s->clkm.mpu_base;
uint16_t diff;
omap_clk clk;
static const char *clkschemename[8] = {
"fully synchronous", "fully asynchronous", "synchronous scalable",
"mix mode 1", "mix mode 2", "bypass mode", "mix mode 3", "mix mode 4",
};
switch (offset) {
case 0x00: /* ARM_CKCTL */
diff = s->clkm.arm_ckctl ^ value;
s->clkm.arm_ckctl = value & 0x7fff;
omap_clkm_ckctl_update(s, diff, value);
return;
case 0x04: /* ARM_IDLECT1 */
diff = s->clkm.arm_idlect1 ^ value;
s->clkm.arm_idlect1 = value & 0x0fff;
omap_clkm_idlect1_update(s, diff, value);
return;
case 0x08: /* ARM_IDLECT2 */
diff = s->clkm.arm_idlect2 ^ value;
s->clkm.arm_idlect2 = value & 0x07ff;
omap_clkm_idlect2_update(s, diff, value);
return;
case 0x0c: /* ARM_EWUPCT */
diff = s->clkm.arm_ewupct ^ value;
s->clkm.arm_ewupct = value & 0x003f;
return;
case 0x10: /* ARM_RSTCT1 */
diff = s->clkm.arm_rstct1 ^ value;
s->clkm.arm_rstct1 = value & 0x0007;
if (value & 9) {
qemu_system_reset_request();
s->clkm.cold_start = 0xa;
}
if (diff & ~value & 4) { /* DSP_RST */
omap_mpui_reset(s);
omap_tipb_bridge_reset(s->private_tipb);
omap_tipb_bridge_reset(s->public_tipb);
}
if (diff & 2) { /* DSP_EN */
clk = omap_findclk(s, "dsp_ck");
omap_clk_canidle(clk, (~value >> 1) & 1);
}
return;
case 0x14: /* ARM_RSTCT2 */
s->clkm.arm_rstct2 = value & 0x0001;
return;
case 0x18: /* ARM_SYSST */
if ((s->clkm.clocking_scheme ^ (value >> 11)) & 7) {
s->clkm.clocking_scheme = (value >> 11) & 7;
printf("%s: clocking scheme set to %s\n", __FUNCTION__,
clkschemename[s->clkm.clocking_scheme]);
}
s->clkm.cold_start &= value & 0x3f;
return;
case 0x1c: /* ARM_CKOUT1 */
diff = s->clkm.arm_ckout1 ^ value;
s->clkm.arm_ckout1 = value & 0x003f;
omap_clkm_ckout1_update(s, diff, value);
return;
case 0x20: /* ARM_CKOUT2 */
default:
OMAP_BAD_REG(addr);
}
}
static CPUReadMemoryFunc *omap_clkm_readfn[] = {
omap_badwidth_read16,
omap_clkm_read,
omap_badwidth_read16,
};
static CPUWriteMemoryFunc *omap_clkm_writefn[] = {
omap_badwidth_write16,
omap_clkm_write,
omap_badwidth_write16,
};
static uint32_t omap_clkdsp_read(void *opaque, target_phys_addr_t addr)
{
struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
int offset = addr - s->clkm.dsp_base;
switch (offset) {
case 0x04: /* DSP_IDLECT1 */
return s->clkm.dsp_idlect1;
case 0x08: /* DSP_IDLECT2 */
return s->clkm.dsp_idlect2;
case 0x14: /* DSP_RSTCT2 */
return s->clkm.dsp_rstct2;
case 0x18: /* DSP_SYSST */
return (s->clkm.clocking_scheme < 11) | s->clkm.cold_start |
(s->env->halted << 6); /* Quite useless... */
}
OMAP_BAD_REG(addr);
return 0;
}
static inline void omap_clkdsp_idlect1_update(struct omap_mpu_state_s *s,
uint16_t diff, uint16_t value)
{
omap_clk clk;
SET_CANIDLE("dspxor_ck", 1); /* IDLXORP_DSP */
}
static inline void omap_clkdsp_idlect2_update(struct omap_mpu_state_s *s,
uint16_t diff, uint16_t value)
{
omap_clk clk;
SET_ONOFF("dspxor_ck", 1); /* EN_XORPCK */
}
static void omap_clkdsp_write(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
int offset = addr - s->clkm.dsp_base;
uint16_t diff;
switch (offset) {
case 0x04: /* DSP_IDLECT1 */
diff = s->clkm.dsp_idlect1 ^ value;
s->clkm.dsp_idlect1 = value & 0x01f7;
omap_clkdsp_idlect1_update(s, diff, value);
break;
case 0x08: /* DSP_IDLECT2 */
s->clkm.dsp_idlect2 = value & 0x0037;
diff = s->clkm.dsp_idlect1 ^ value;
omap_clkdsp_idlect2_update(s, diff, value);
break;
case 0x14: /* DSP_RSTCT2 */
s->clkm.dsp_rstct2 = value & 0x0001;
break;
case 0x18: /* DSP_SYSST */
s->clkm.cold_start &= value & 0x3f;
break;
default:
OMAP_BAD_REG(addr);
}
}
static CPUReadMemoryFunc *omap_clkdsp_readfn[] = {
omap_badwidth_read16,
omap_clkdsp_read,
omap_badwidth_read16,
};
static CPUWriteMemoryFunc *omap_clkdsp_writefn[] = {
omap_badwidth_write16,
omap_clkdsp_write,
omap_badwidth_write16,
};
static void omap_clkm_reset(struct omap_mpu_state_s *s)
{
if (s->wdt && s->wdt->reset)
s->clkm.cold_start = 0x6;
s->clkm.clocking_scheme = 0;
omap_clkm_ckctl_update(s, ~0, 0x3000);
s->clkm.arm_ckctl = 0x3000;
omap_clkm_idlect1_update(s, s->clkm.arm_idlect1 & 0x0400, 0x0400);
s->clkm.arm_idlect1 = 0x0400;
omap_clkm_idlect2_update(s, s->clkm.arm_idlect2 & 0x0100, 0x0100);
s->clkm.arm_idlect2 = 0x0100;
s->clkm.arm_ewupct = 0x003f;
s->clkm.arm_rstct1 = 0x0000;
s->clkm.arm_rstct2 = 0x0000;
s->clkm.arm_ckout1 = 0x0015;
s->clkm.dpll1_mode = 0x2002;
omap_clkdsp_idlect1_update(s, s->clkm.dsp_idlect1 ^ 0x0040, 0x0040);
s->clkm.dsp_idlect1 = 0x0040;
omap_clkdsp_idlect2_update(s, ~0, 0x0000);
s->clkm.dsp_idlect2 = 0x0000;
s->clkm.dsp_rstct2 = 0x0000;
}
static void omap_clkm_init(target_phys_addr_t mpu_base,
target_phys_addr_t dsp_base, struct omap_mpu_state_s *s)
{
int iomemtype[2] = {
cpu_register_io_memory(0, omap_clkm_readfn, omap_clkm_writefn, s),
cpu_register_io_memory(0, omap_clkdsp_readfn, omap_clkdsp_writefn, s),
};
s->clkm.mpu_base = mpu_base;
s->clkm.dsp_base = dsp_base;
s->clkm.cold_start = 0x3a;
omap_clkm_reset(s);
cpu_register_physical_memory(s->clkm.mpu_base, 0x100, iomemtype[0]);
cpu_register_physical_memory(s->clkm.dsp_base, 0x1000, iomemtype[1]);
}
/* MPU I/O */
struct omap_mpuio_s {
target_phys_addr_t base;
qemu_irq irq;
qemu_irq kbd_irq;
qemu_irq *in;
qemu_irq handler[16];
qemu_irq wakeup;
uint16_t inputs;
uint16_t outputs;
uint16_t dir;
uint16_t edge;
uint16_t mask;
uint16_t ints;
uint16_t debounce;
uint16_t latch;
uint8_t event;
uint8_t buttons[5];
uint8_t row_latch;
uint8_t cols;
int kbd_mask;
int clk;
};
static void omap_mpuio_set(void *opaque, int line, int level)
{
struct omap_mpuio_s *s = (struct omap_mpuio_s *) opaque;
uint16_t prev = s->inputs;
if (level)
s->inputs |= 1 << line;
else
s->inputs &= ~(1 << line);
if (((1 << line) & s->dir & ~s->mask) && s->clk) {
if ((s->edge & s->inputs & ~prev) | (~s->edge & ~s->inputs & prev)) {
s->ints |= 1 << line;
qemu_irq_raise(s->irq);
/* TODO: wakeup */
}
if ((s->event & (1 << 0)) && /* SET_GPIO_EVENT_MODE */
(s->event >> 1) == line) /* PIN_SELECT */
s->latch = s->inputs;
}
}
static void omap_mpuio_kbd_update(struct omap_mpuio_s *s)
{
int i;
uint8_t *row, rows = 0, cols = ~s->cols;
for (row = s->buttons + 4, i = 1 << 4; i; row --, i >>= 1)
if (*row & cols)
rows |= i;
qemu_set_irq(s->kbd_irq, rows && ~s->kbd_mask && s->clk);
s->row_latch = rows ^ 0x1f;
}
static uint32_t omap_mpuio_read(void *opaque, target_phys_addr_t addr)
{
struct omap_mpuio_s *s = (struct omap_mpuio_s *) opaque;
int offset = addr - s->base;
uint16_t ret;
switch (offset) {
case 0x00: /* INPUT_LATCH */
return s->inputs;
case 0x04: /* OUTPUT_REG */
return s->outputs;
case 0x08: /* IO_CNTL */
return s->dir;
case 0x10: /* KBR_LATCH */
return s->row_latch;
case 0x14: /* KBC_REG */
return s->cols;
case 0x18: /* GPIO_EVENT_MODE_REG */
return s->event;
case 0x1c: /* GPIO_INT_EDGE_REG */
return s->edge;
case 0x20: /* KBD_INT */
return (s->row_latch != 0x1f) && !s->kbd_mask;
case 0x24: /* GPIO_INT */
ret = s->ints;
s->ints &= s->mask;
if (ret)
qemu_irq_lower(s->irq);
return ret;
case 0x28: /* KBD_MASKIT */
return s->kbd_mask;
case 0x2c: /* GPIO_MASKIT */
return s->mask;
case 0x30: /* GPIO_DEBOUNCING_REG */
return s->debounce;
case 0x34: /* GPIO_LATCH_REG */
return s->latch;
}
OMAP_BAD_REG(addr);
return 0;
}
static void omap_mpuio_write(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
struct omap_mpuio_s *s = (struct omap_mpuio_s *) opaque;
int offset = addr - s->base;
uint16_t diff;
int ln;
switch (offset) {
case 0x04: /* OUTPUT_REG */
diff = s->outputs ^ (value & ~s->dir);
s->outputs = value;
value &= ~s->dir;
while ((ln = ffs(diff))) {
ln --;
if (s->handler[ln])
qemu_set_irq(s->handler[ln], (value >> ln) & 1);
diff &= ~(1 << ln);
}
break;
case 0x08: /* IO_CNTL */
diff = s->outputs & (s->dir ^ value);
s->dir = value;
value = s->outputs & ~s->dir;
while ((ln = ffs(diff))) {
ln --;
if (s->handler[ln])
qemu_set_irq(s->handler[ln], (value >> ln) & 1);
diff &= ~(1 << ln);
}
break;
case 0x14: /* KBC_REG */
s->cols = value;
omap_mpuio_kbd_update(s);
break;
case 0x18: /* GPIO_EVENT_MODE_REG */
s->event = value & 0x1f;
break;
case 0x1c: /* GPIO_INT_EDGE_REG */
s->edge = value;
break;
case 0x28: /* KBD_MASKIT */
s->kbd_mask = value & 1;
omap_mpuio_kbd_update(s);
break;
case 0x2c: /* GPIO_MASKIT */
s->mask = value;
break;
case 0x30: /* GPIO_DEBOUNCING_REG */
s->debounce = value & 0x1ff;
break;
case 0x00: /* INPUT_LATCH */
case 0x10: /* KBR_LATCH */
case 0x20: /* KBD_INT */
case 0x24: /* GPIO_INT */
case 0x34: /* GPIO_LATCH_REG */
OMAP_RO_REG(addr);
return;
default:
OMAP_BAD_REG(addr);
return;
}
}
static CPUReadMemoryFunc *omap_mpuio_readfn[] = {
omap_badwidth_read16,
omap_mpuio_read,
omap_badwidth_read16,
};
static CPUWriteMemoryFunc *omap_mpuio_writefn[] = {
omap_badwidth_write16,
omap_mpuio_write,
omap_badwidth_write16,
};
void omap_mpuio_reset(struct omap_mpuio_s *s)
{
s->inputs = 0;
s->outputs = 0;
s->dir = ~0;
s->event = 0;
s->edge = 0;
s->kbd_mask = 0;
s->mask = 0;
s->debounce = 0;
s->latch = 0;
s->ints = 0;
s->row_latch = 0x1f;
s->clk = 1;
}
static void omap_mpuio_onoff(void *opaque, int line, int on)
{
struct omap_mpuio_s *s = (struct omap_mpuio_s *) opaque;
s->clk = on;
if (on)
omap_mpuio_kbd_update(s);
}
struct omap_mpuio_s *omap_mpuio_init(target_phys_addr_t base,
qemu_irq kbd_int, qemu_irq gpio_int, qemu_irq wakeup,
omap_clk clk)
{
int iomemtype;
struct omap_mpuio_s *s = (struct omap_mpuio_s *)
qemu_mallocz(sizeof(struct omap_mpuio_s));
s->base = base;
s->irq = gpio_int;
s->kbd_irq = kbd_int;
s->wakeup = wakeup;
s->in = qemu_allocate_irqs(omap_mpuio_set, s, 16);
omap_mpuio_reset(s);
iomemtype = cpu_register_io_memory(0, omap_mpuio_readfn,
omap_mpuio_writefn, s);
cpu_register_physical_memory(s->base, 0x800, iomemtype);
omap_clk_adduser(clk, qemu_allocate_irqs(omap_mpuio_onoff, s, 1)[0]);
return s;
}
qemu_irq *omap_mpuio_in_get(struct omap_mpuio_s *s)
{
return s->in;
}
void omap_mpuio_out_set(struct omap_mpuio_s *s, int line, qemu_irq handler)
{
if (line >= 16 || line < 0)
cpu_abort(cpu_single_env, "%s: No GPIO line %i\n", __FUNCTION__, line);
s->handler[line] = handler;
}
void omap_mpuio_key(struct omap_mpuio_s *s, int row, int col, int down)
{
if (row >= 5 || row < 0)
cpu_abort(cpu_single_env, "%s: No key %i-%i\n",
__FUNCTION__, col, row);
if (down)
s->buttons[row] |= 1 << col;
else
s->buttons[row] &= ~(1 << col);
omap_mpuio_kbd_update(s);
}
/* General-Purpose I/O */
struct omap_gpio_s {
target_phys_addr_t base;
qemu_irq irq;
qemu_irq *in;
qemu_irq handler[16];
uint16_t inputs;
uint16_t outputs;
uint16_t dir;
uint16_t edge;
uint16_t mask;
uint16_t ints;
};
static void omap_gpio_set(void *opaque, int line, int level)
{
struct omap_gpio_s *s = (struct omap_gpio_s *) opaque;
uint16_t prev = s->inputs;
if (level)
s->inputs |= 1 << line;
else
s->inputs &= ~(1 << line);
if (((s->edge & s->inputs & ~prev) | (~s->edge & ~s->inputs & prev)) &
(1 << line) & s->dir & ~s->mask) {
s->ints |= 1 << line;
qemu_irq_raise(s->irq);
}
}
static uint32_t omap_gpio_read(void *opaque, target_phys_addr_t addr)
{
struct omap_gpio_s *s = (struct omap_gpio_s *) opaque;
int offset = addr - s->base;
switch (offset) {
case 0x00: /* DATA_INPUT */
return s->inputs;
case 0x04: /* DATA_OUTPUT */
return s->outputs;
case 0x08: /* DIRECTION_CONTROL */
return s->dir;
case 0x0c: /* INTERRUPT_CONTROL */
return s->edge;
case 0x10: /* INTERRUPT_MASK */
return s->mask;
case 0x14: /* INTERRUPT_STATUS */
return s->ints;
}
OMAP_BAD_REG(addr);
return 0;
}
static void omap_gpio_write(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
struct omap_gpio_s *s = (struct omap_gpio_s *) opaque;
int offset = addr - s->base;
uint16_t diff;
int ln;
switch (offset) {
case 0x00: /* DATA_INPUT */
OMAP_RO_REG(addr);
return;
case 0x04: /* DATA_OUTPUT */
diff = s->outputs ^ (value & ~s->dir);
s->outputs = value;
value &= ~s->dir;
while ((ln = ffs(diff))) {
ln --;
if (s->handler[ln])
qemu_set_irq(s->handler[ln], (value >> ln) & 1);
diff &= ~(1 << ln);
}
break;
case 0x08: /* DIRECTION_CONTROL */
diff = s->outputs & (s->dir ^ value);
s->dir = value;
value = s->outputs & ~s->dir;
while ((ln = ffs(diff))) {
ln --;
if (s->handler[ln])
qemu_set_irq(s->handler[ln], (value >> ln) & 1);
diff &= ~(1 << ln);
}
break;
case 0x0c: /* INTERRUPT_CONTROL */
s->edge = value;
break;
case 0x10: /* INTERRUPT_MASK */
s->mask = value;
break;
case 0x14: /* INTERRUPT_STATUS */
s->ints &= ~value;
if (!s->ints)
qemu_irq_lower(s->irq);
break;
default:
OMAP_BAD_REG(addr);
return;
}
}
/* *Some* sources say the memory region is 32-bit. */
static CPUReadMemoryFunc *omap_gpio_readfn[] = {
omap_badwidth_read16,
omap_gpio_read,
omap_badwidth_read16,
};
static CPUWriteMemoryFunc *omap_gpio_writefn[] = {
omap_badwidth_write16,
omap_gpio_write,
omap_badwidth_write16,
};
void omap_gpio_reset(struct omap_gpio_s *s)
{
s->inputs = 0;
s->outputs = ~0;
s->dir = ~0;
s->edge = ~0;
s->mask = ~0;
s->ints = 0;
}
struct omap_gpio_s *omap_gpio_init(target_phys_addr_t base,
qemu_irq irq, omap_clk clk)
{
int iomemtype;
struct omap_gpio_s *s = (struct omap_gpio_s *)
qemu_mallocz(sizeof(struct omap_gpio_s));
s->base = base;
s->irq = irq;
s->in = qemu_allocate_irqs(omap_gpio_set, s, 16);
omap_gpio_reset(s);
iomemtype = cpu_register_io_memory(0, omap_gpio_readfn,
omap_gpio_writefn, s);
cpu_register_physical_memory(s->base, 0x1000, iomemtype);
return s;
}
qemu_irq *omap_gpio_in_get(struct omap_gpio_s *s)
{
return s->in;
}
void omap_gpio_out_set(struct omap_gpio_s *s, int line, qemu_irq handler)
{
if (line >= 16 || line < 0)
cpu_abort(cpu_single_env, "%s: No GPIO line %i\n", __FUNCTION__, line);
s->handler[line] = handler;
}
/* MicroWire Interface */
struct omap_uwire_s {
target_phys_addr_t base;
qemu_irq txirq;
qemu_irq rxirq;
qemu_irq txdrq;
uint16_t txbuf;
uint16_t rxbuf;
uint16_t control;
uint16_t setup[5];
struct uwire_slave_s *chip[4];
};
static void omap_uwire_transfer_start(struct omap_uwire_s *s)
{
int chipselect = (s->control >> 10) & 3; /* INDEX */
struct uwire_slave_s *slave = s->chip[chipselect];
if ((s->control >> 5) & 0x1f) { /* NB_BITS_WR */
if (s->control & (1 << 12)) /* CS_CMD */
if (slave && slave->send)
slave->send(slave->opaque,
s->txbuf >> (16 - ((s->control >> 5) & 0x1f)));
s->control &= ~(1 << 14); /* CSRB */
/* TODO: depending on s->setup[4] bits [1:0] assert an IRQ or
* a DRQ. When is the level IRQ supposed to be reset? */
}
if ((s->control >> 0) & 0x1f) { /* NB_BITS_RD */
if (s->control & (1 << 12)) /* CS_CMD */
if (slave && slave->receive)
s->rxbuf = slave->receive(slave->opaque);
s->control |= 1 << 15; /* RDRB */
/* TODO: depending on s->setup[4] bits [1:0] assert an IRQ or
* a DRQ. When is the level IRQ supposed to be reset? */
}
}
static uint32_t omap_uwire_read(void *opaque, target_phys_addr_t addr)
{
struct omap_uwire_s *s = (struct omap_uwire_s *) opaque;
int offset = addr - s->base;
switch (offset) {
case 0x00: /* RDR */
s->control &= ~(1 << 15); /* RDRB */
return s->rxbuf;
case 0x04: /* CSR */
return s->control;
case 0x08: /* SR1 */
return s->setup[0];
case 0x0c: /* SR2 */
return s->setup[1];
case 0x10: /* SR3 */
return s->setup[2];
case 0x14: /* SR4 */
return s->setup[3];
case 0x18: /* SR5 */
return s->setup[4];
}
OMAP_BAD_REG(addr);
return 0;
}
static void omap_uwire_write(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
struct omap_uwire_s *s = (struct omap_uwire_s *) opaque;
int offset = addr - s->base;
switch (offset) {
case 0x00: /* TDR */
s->txbuf = value; /* TD */
s->control |= 1 << 14; /* CSRB */
if ((s->setup[4] & (1 << 2)) && /* AUTO_TX_EN */
((s->setup[4] & (1 << 3)) || /* CS_TOGGLE_TX_EN */
(s->control & (1 << 12)))) /* CS_CMD */
omap_uwire_transfer_start(s);
break;
case 0x04: /* CSR */
s->control = value & 0x1fff;
if (value & (1 << 13)) /* START */
omap_uwire_transfer_start(s);
break;
case 0x08: /* SR1 */
s->setup[0] = value & 0x003f;
break;
case 0x0c: /* SR2 */
s->setup[1] = value & 0x0fc0;
break;
case 0x10: /* SR3 */
s->setup[2] = value & 0x0003;
break;
case 0x14: /* SR4 */
s->setup[3] = value & 0x0001;
break;
case 0x18: /* SR5 */
s->setup[4] = value & 0x000f;
break;
default:
OMAP_BAD_REG(addr);
return;
}
}
static CPUReadMemoryFunc *omap_uwire_readfn[] = {
omap_badwidth_read16,
omap_uwire_read,
omap_badwidth_read16,
};
static CPUWriteMemoryFunc *omap_uwire_writefn[] = {
omap_badwidth_write16,
omap_uwire_write,
omap_badwidth_write16,
};
void omap_uwire_reset(struct omap_uwire_s *s)
{
s->control= 0;
s->setup[0] = 0;
s->setup[1] = 0;
s->setup[2] = 0;
s->setup[3] = 0;
s->setup[4] = 0;
}
struct omap_uwire_s *omap_uwire_init(target_phys_addr_t base,
qemu_irq *irq, qemu_irq dma, omap_clk clk)
{
int iomemtype;
struct omap_uwire_s *s = (struct omap_uwire_s *)
qemu_mallocz(sizeof(struct omap_uwire_s));
s->base = base;
s->txirq = irq[0];
s->rxirq = irq[1];
s->txdrq = dma;
omap_uwire_reset(s);
iomemtype = cpu_register_io_memory(0, omap_uwire_readfn,
omap_uwire_writefn, s);
cpu_register_physical_memory(s->base, 0x800, iomemtype);
return s;
}
void omap_uwire_attach(struct omap_uwire_s *s,
struct uwire_slave_s *slave, int chipselect)
{
if (chipselect < 0 || chipselect > 3)
cpu_abort(cpu_single_env, "%s: Bad chipselect %i\n", __FUNCTION__,
chipselect);
s->chip[chipselect] = slave;
}
/* General chip reset */
static void omap_mpu_reset(void *opaque)
{
struct omap_mpu_state_s *mpu = (struct omap_mpu_state_s *) opaque;
omap_clkm_reset(mpu);
omap_inth_reset(mpu->ih[0]);
omap_inth_reset(mpu->ih[1]);
omap_dma_reset(mpu->dma);
omap_mpu_timer_reset(mpu->timer[0]);
omap_mpu_timer_reset(mpu->timer[1]);
omap_mpu_timer_reset(mpu->timer[2]);
omap_wd_timer_reset(mpu->wdt);
omap_os_timer_reset(mpu->os_timer);
omap_lcdc_reset(mpu->lcd);
omap_ulpd_pm_reset(mpu);
omap_pin_cfg_reset(mpu);
omap_mpui_reset(mpu);
omap_tipb_bridge_reset(mpu->private_tipb);
omap_tipb_bridge_reset(mpu->public_tipb);
omap_dpll_reset(&mpu->dpll[0]);
omap_dpll_reset(&mpu->dpll[1]);
omap_dpll_reset(&mpu->dpll[2]);
omap_uart_reset(mpu->uart[0]);
omap_uart_reset(mpu->uart[1]);
omap_uart_reset(mpu->uart[2]);
omap_mmc_reset(mpu->mmc);
omap_mpuio_reset(mpu->mpuio);
omap_gpio_reset(mpu->gpio);
omap_uwire_reset(mpu->microwire);
cpu_reset(mpu->env);
}
static void omap_mpu_wakeup(void *opaque, int irq, int req)
{
struct omap_mpu_state_s *mpu = (struct omap_mpu_state_s *) opaque;
if (mpu->env->halted)
cpu_interrupt(mpu->env, CPU_INTERRUPT_EXITTB);
}
struct omap_mpu_state_s *omap310_mpu_init(unsigned long sdram_size,
DisplayState *ds, const char *core)
{
struct omap_mpu_state_s *s = (struct omap_mpu_state_s *)
qemu_mallocz(sizeof(struct omap_mpu_state_s));
ram_addr_t imif_base, emiff_base;
/* Core */
s->mpu_model = omap310;
s->env = cpu_init();
s->sdram_size = sdram_size;
s->sram_size = OMAP15XX_SRAM_SIZE;
cpu_arm_set_model(s->env, core ?: "ti925t");
s->wakeup = qemu_allocate_irqs(omap_mpu_wakeup, s, 1)[0];
/* Clocks */
omap_clk_init(s);
/* Memory-mapped stuff */
cpu_register_physical_memory(OMAP_EMIFF_BASE, s->sdram_size,
(emiff_base = qemu_ram_alloc(s->sdram_size)) | IO_MEM_RAM);
cpu_register_physical_memory(OMAP_IMIF_BASE, s->sram_size,
(imif_base = qemu_ram_alloc(s->sram_size)) | IO_MEM_RAM);
omap_clkm_init(0xfffece00, 0xe1008000, s);
s->ih[0] = omap_inth_init(0xfffecb00, 0x100,
arm_pic_init_cpu(s->env),
omap_findclk(s, "arminth_ck"));
s->ih[1] = omap_inth_init(0xfffe0000, 0x800,
&s->ih[0]->pins[OMAP_INT_15XX_IH2_IRQ],
omap_findclk(s, "arminth_ck"));
s->irq[0] = s->ih[0]->pins;
s->irq[1] = s->ih[1]->pins;
s->dma = omap_dma_init(0xfffed800, s->irq[0], s,
omap_findclk(s, "dma_ck"));
s->port[emiff ].addr_valid = omap_validate_emiff_addr;
s->port[emifs ].addr_valid = omap_validate_emifs_addr;
s->port[imif ].addr_valid = omap_validate_imif_addr;
s->port[tipb ].addr_valid = omap_validate_tipb_addr;
s->port[local ].addr_valid = omap_validate_local_addr;
s->port[tipb_mpui].addr_valid = omap_validate_tipb_mpui_addr;
s->timer[0] = omap_mpu_timer_init(0xfffec500,
s->irq[0][OMAP_INT_TIMER1],
omap_findclk(s, "mputim_ck"));
s->timer[1] = omap_mpu_timer_init(0xfffec600,
s->irq[0][OMAP_INT_TIMER2],
omap_findclk(s, "mputim_ck"));
s->timer[2] = omap_mpu_timer_init(0xfffec700,
s->irq[0][OMAP_INT_TIMER3],
omap_findclk(s, "mputim_ck"));
s->wdt = omap_wd_timer_init(0xfffec800,
s->irq[0][OMAP_INT_WD_TIMER],
omap_findclk(s, "armwdt_ck"));
s->os_timer = omap_os_timer_init(0xfffb9000,
s->irq[1][OMAP_INT_OS_TIMER],
omap_findclk(s, "clk32-kHz"));
s->lcd = omap_lcdc_init(0xfffec000, s->irq[0][OMAP_INT_LCD_CTRL],
&s->dma->lcd_ch, ds, imif_base, emiff_base,
omap_findclk(s, "lcd_ck"));
omap_ulpd_pm_init(0xfffe0800, s);
omap_pin_cfg_init(0xfffe1000, s);
omap_id_init(s);
omap_mpui_init(0xfffec900, s);
s->private_tipb = omap_tipb_bridge_init(0xfffeca00,
s->irq[0][OMAP_INT_BRIDGE_PRIV],
omap_findclk(s, "tipb_ck"));
s->public_tipb = omap_tipb_bridge_init(0xfffed300,
s->irq[0][OMAP_INT_BRIDGE_PUB],
omap_findclk(s, "tipb_ck"));
omap_tcmi_init(0xfffecc00, s);
s->uart[0] = omap_uart_init(0xfffb0000, s->irq[1][OMAP_INT_UART1],
omap_findclk(s, "uart1_ck"),
serial_hds[0]);
s->uart[1] = omap_uart_init(0xfffb0800, s->irq[1][OMAP_INT_UART2],
omap_findclk(s, "uart2_ck"),
serial_hds[0] ? serial_hds[1] : 0);
s->uart[2] = omap_uart_init(0xe1019800, s->irq[0][OMAP_INT_UART3],
omap_findclk(s, "uart3_ck"),
serial_hds[0] && serial_hds[1] ? serial_hds[2] : 0);
omap_dpll_init(&s->dpll[0], 0xfffecf00, omap_findclk(s, "dpll1"));
omap_dpll_init(&s->dpll[1], 0xfffed000, omap_findclk(s, "dpll2"));
omap_dpll_init(&s->dpll[2], 0xfffed100, omap_findclk(s, "dpll3"));
s->mmc = omap_mmc_init(0xfffb7800, s->irq[1][OMAP_INT_OQN],
&s->drq[OMAP_DMA_MMC_TX], omap_findclk(s, "mmc_ck"));
s->mpuio = omap_mpuio_init(0xfffb5000,
s->irq[1][OMAP_INT_KEYBOARD], s->irq[1][OMAP_INT_MPUIO],
s->wakeup, omap_findclk(s, "clk32-kHz"));
s->gpio = omap_gpio_init(0xfffce000, s->irq[0][OMAP_INT_GPIO_BANK1],
omap_findclk(s, "mpuper_ck"));
s->microwire = omap_uwire_init(0xfffb3000, &s->irq[1][OMAP_INT_uWireTX],
s->drq[OMAP_DMA_UWIRE_TX], omap_findclk(s, "mpuper_ck"));
qemu_register_reset(omap_mpu_reset, s);
return s;
}
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