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Merge branch 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 

* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6:
  omap: DMA: clear interrupt status correctly
  OMAP3: Devkit8000: Fix tps65930 pullup/pulldown configuration
  arm: omap3: cm-t3517: minor comment fix
  arm: omap3: cm-t3517: rtc fix
  omap1: Fix sched_clock implementation when both MPU timer and 32K timer are used
  omap1: Fix booting for 15xx and 730 with omap1_defconfig
  omap1: Fix sched_clock for the MPU timer
  OMAP: PRCM: remove duplicated headers
  OMAP4: clockdomain: bypass unimplemented wake-up dependency functions on OMAP4
  OMAP: counter_32k: init clocksource as part of machine timer init
This commit is contained in:
Linus Torvalds 2011-01-25 05:29:49 +10:00
parent 500d85ce39 4fb699b408
commit 34686fe689
15 changed files with 184 additions and 51 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/mach-omap1/Kconfig
View File

@ -9,6 +9,7 @@ config ARCH_OMAP730
depends on ARCH_OMAP1
bool "OMAP730 Based System"
select CPU_ARM926T
select OMAP_MPU_TIMER
select ARCH_OMAP_OTG
config ARCH_OMAP850
@ -22,6 +23,7 @@ config ARCH_OMAP15XX
default y
bool "OMAP15xx Based System"
select CPU_ARM925T
select OMAP_MPU_TIMER
config ARCH_OMAP16XX
depends on ARCH_OMAP1

3
arch/arm/mach-omap1/Makefile
View File

@ -3,12 +3,11 @@
#
# Common support
obj-y := io.o id.o sram.o irq.o mux.o flash.o serial.o devices.o dma.o
obj-y := io.o id.o sram.o time.o irq.o mux.o flash.o serial.o devices.o dma.o
obj-y += clock.o clock_data.o opp_data.o
obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o
obj-$(CONFIG_OMAP_MPU_TIMER) += time.o
obj-$(CONFIG_OMAP_32K_TIMER) += timer32k.o
# Power Management

101
arch/arm/mach-omap1/time.c
View File

@ -44,16 +44,21 @@
#include <linux/clocksource.h>
#include <linux/clockchips.h>
#include <linux/io.h>
#include <linux/sched.h>
#include <asm/system.h>
#include <mach/hardware.h>
#include <asm/leds.h>
#include <asm/irq.h>
#include <asm/sched_clock.h>
#include <asm/mach/irq.h>
#include <asm/mach/time.h>
#include <plat/common.h>
#ifdef CONFIG_OMAP_MPU_TIMER
#define OMAP_MPU_TIMER_BASE OMAP_MPU_TIMER1_BASE
#define OMAP_MPU_TIMER_OFFSET 0x100
@ -67,7 +72,7 @@ typedef struct {
((volatile omap_mpu_timer_regs_t*)OMAP1_IO_ADDRESS(OMAP_MPU_TIMER_BASE + \
(n)*OMAP_MPU_TIMER_OFFSET))
static inline unsigned long omap_mpu_timer_read(int nr)
static inline unsigned long notrace omap_mpu_timer_read(int nr)
{
volatile omap_mpu_timer_regs_t* timer = omap_mpu_timer_base(nr);
return timer->read_tim;
@ -212,6 +217,32 @@ static struct clocksource clocksource_mpu = {
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
static DEFINE_CLOCK_DATA(cd);
static inline unsigned long long notrace _omap_mpu_sched_clock(void)
{
u32 cyc = mpu_read(&clocksource_mpu);
return cyc_to_sched_clock(&cd, cyc, (u32)~0);
}
#ifndef CONFIG_OMAP_32K_TIMER
unsigned long long notrace sched_clock(void)
{
return _omap_mpu_sched_clock();
}
#else
static unsigned long long notrace omap_mpu_sched_clock(void)
{
return _omap_mpu_sched_clock();
}
#endif
static void notrace mpu_update_sched_clock(void)
{
u32 cyc = mpu_read(&clocksource_mpu);
update_sched_clock(&cd, cyc, (u32)~0);
}
static void __init omap_init_clocksource(unsigned long rate)
{
static char err[] __initdata = KERN_ERR
@ -219,17 +250,13 @@ static void __init omap_init_clocksource(unsigned long rate)
setup_irq(INT_TIMER2, &omap_mpu_timer2_irq);
omap_mpu_timer_start(1, ~0, 1);
init_sched_clock(&cd, mpu_update_sched_clock, 32, rate);
if (clocksource_register_hz(&clocksource_mpu, rate))
printk(err, clocksource_mpu.name);
}
/*
* ---------------------------------------------------------------------------
* Timer initialization
* ---------------------------------------------------------------------------
*/
static void __init omap_timer_init(void)
static void __init omap_mpu_timer_init(void)
{
struct clk *ck_ref = clk_get(NULL, "ck_ref");
unsigned long rate;
@ -246,6 +273,66 @@ static void __init omap_timer_init(void)
omap_init_clocksource(rate);
}
#else
static inline void omap_mpu_timer_init(void)
{
pr_err("Bogus timer, should not happen\n");
}
#endif /* CONFIG_OMAP_MPU_TIMER */
#if defined(CONFIG_OMAP_MPU_TIMER) && defined(CONFIG_OMAP_32K_TIMER)
static unsigned long long (*preferred_sched_clock)(void);
unsigned long long notrace sched_clock(void)
{
if (!preferred_sched_clock)
return 0;
return preferred_sched_clock();
}
static inline void preferred_sched_clock_init(bool use_32k_sched_clock)
{
if (use_32k_sched_clock)
preferred_sched_clock = omap_32k_sched_clock;
else
preferred_sched_clock = omap_mpu_sched_clock;
}
#else
static inline void preferred_sched_clock_init(bool use_32k_sched_clcok)
{
}
#endif
static inline int omap_32k_timer_usable(void)
{
int res = false;
if (cpu_is_omap730() || cpu_is_omap15xx())
return res;
#ifdef CONFIG_OMAP_32K_TIMER
res = omap_32k_timer_init();
#endif
return res;
}
/*
* ---------------------------------------------------------------------------
* Timer initialization
* ---------------------------------------------------------------------------
*/
static void __init omap_timer_init(void)
{
if (omap_32k_timer_usable()) {
preferred_sched_clock_init(1);
} else {
omap_mpu_timer_init();
preferred_sched_clock_init(0);
}
}
struct sys_timer omap_timer = {
.init = omap_timer_init,
};

13
arch/arm/mach-omap1/timer32k.c
View File

@ -52,10 +52,9 @@
#include <asm/irq.h>
#include <asm/mach/irq.h>
#include <asm/mach/time.h>
#include <plat/common.h>
#include <plat/dmtimer.h>
struct sys_timer omap_timer;
/*
* ---------------------------------------------------------------------------
* 32KHz OS timer
@ -181,14 +180,14 @@ static __init void omap_init_32k_timer(void)
* Timer initialization
* ---------------------------------------------------------------------------
*/
static void __init omap_timer_init(void)
bool __init omap_32k_timer_init(void)
{
omap_init_clocksource_32k();
#ifdef CONFIG_OMAP_DM_TIMER
omap_dm_timer_init();
#endif
omap_init_32k_timer();
}
struct sys_timer omap_timer = {
.init = omap_timer_init,
};
return true;
}

29
arch/arm/mach-omap2/board-cm-t3517.c
View File

@ -124,8 +124,9 @@ static inline void cm_t3517_init_hecc(void) {}
#if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
#define RTC_IO_GPIO (153)
#define RTC_WR_GPIO (154)
#define RTC_RD_GPIO (160)
#define RTC_RD_GPIO (53)
#define RTC_CS_GPIO (163)
#define RTC_CS_EN_GPIO (160)
struct v3020_platform_data cm_t3517_v3020_pdata = {
.use_gpio = 1,
@ -145,6 +146,16 @@ static struct platform_device cm_t3517_rtc_device = {
static void __init cm_t3517_init_rtc(void)
{
int err;
err = gpio_request(RTC_CS_EN_GPIO, "rtc cs en");
if (err) {
pr_err("CM-T3517: rtc cs en gpio request failed: %d\n", err);
return;
}
gpio_direction_output(RTC_CS_EN_GPIO, 1);
platform_device_register(&cm_t3517_rtc_device);
}
#else
@ -214,12 +225,12 @@ static struct mtd_partition cm_t3517_nand_partitions[] = {
},
{
.name = "linux",
.offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
.offset = MTDPART_OFS_APPEND, /* Offset = 0x2A0000 */
.size = 32 * NAND_BLOCK_SIZE,
},
{
.name = "rootfs",
.offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
.offset = MTDPART_OFS_APPEND, /* Offset = 0x6A0000 */
.size = MTDPART_SIZ_FULL,
},
};
@ -256,11 +267,19 @@ static void __init cm_t3517_init_irq(void)
static struct omap_board_mux board_mux[] __initdata = {
/* GPIO186 - Green LED */
OMAP3_MUX(SYS_CLKOUT2, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
/* RTC GPIOs: IO, WR#, RD#, CS# */
/* RTC GPIOs: */
/* IO - GPIO153 */
OMAP3_MUX(MCBSP4_DR, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
/* WR# - GPIO154 */
OMAP3_MUX(MCBSP4_DX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
OMAP3_MUX(MCBSP_CLKS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
/* RD# - GPIO53 */
OMAP3_MUX(GPMC_NCS2, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
/* CS# - GPIO163 */
OMAP3_MUX(UART3_CTS_RCTX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
/* CS EN - GPIO160 */
OMAP3_MUX(MCBSP_CLKS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
/* HSUSB1 RESET */
OMAP3_MUX(UART2_TX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
/* HSUSB2 RESET */

3
arch/arm/mach-omap2/board-devkit8000.c
View File

@ -275,8 +275,7 @@ static struct twl4030_gpio_platform_data devkit8000_gpio_data = {
.irq_base = TWL4030_GPIO_IRQ_BASE,
.irq_end = TWL4030_GPIO_IRQ_END,
.use_leds = true,
.pullups = BIT(1),
.pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
.pulldowns = BIT(1) | BIT(2) | BIT(6) | BIT(8) | BIT(13)
| BIT(15) | BIT(16) | BIT(17),
.setup = devkit8000_twl_gpio_setup,
};

1
arch/arm/mach-omap2/clock44xx_data.c
View File

@ -34,7 +34,6 @@
#include "cm2_44xx.h"
#include "cm-regbits-44xx.h"
#include "prm44xx.h"
#include "prm44xx.h"
#include "prm-regbits-44xx.h"
#include "control.h"
#include "scrm44xx.h"

30
arch/arm/mach-omap2/clockdomain.c
View File

@ -423,6 +423,12 @@ int clkdm_add_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
{
struct clkdm_dep *cd;
if (!cpu_is_omap24xx() && !cpu_is_omap34xx()) {
pr_err("clockdomain: %s/%s: %s: not yet implemented\n",
clkdm1->name, clkdm2->name, __func__);
return -EINVAL;
}
if (!clkdm1 || !clkdm2)
return -EINVAL;
@ -458,6 +464,12 @@ int clkdm_del_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
{
struct clkdm_dep *cd;
if (!cpu_is_omap24xx() && !cpu_is_omap34xx()) {
pr_err("clockdomain: %s/%s: %s: not yet implemented\n",
clkdm1->name, clkdm2->name, __func__);
return -EINVAL;
}
if (!clkdm1 || !clkdm2)
return -EINVAL;
@ -500,6 +512,12 @@ int clkdm_read_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
if (!clkdm1 || !clkdm2)
return -EINVAL;
if (!cpu_is_omap24xx() && !cpu_is_omap34xx()) {
pr_err("clockdomain: %s/%s: %s: not yet implemented\n",
clkdm1->name, clkdm2->name, __func__);
return -EINVAL;
}
cd = _clkdm_deps_lookup(clkdm2, clkdm1->wkdep_srcs);
if (IS_ERR(cd)) {
pr_debug("clockdomain: hardware cannot set/clear wake up of "
@ -527,6 +545,12 @@ int clkdm_clear_all_wkdeps(struct clockdomain *clkdm)
struct clkdm_dep *cd;
u32 mask = 0;
if (!cpu_is_omap24xx() && !cpu_is_omap34xx()) {
pr_err("clockdomain: %s: %s: not yet implemented\n",
clkdm->name, __func__);
return -EINVAL;
}
if (!clkdm)
return -EINVAL;
@ -830,8 +854,7 @@ void omap2_clkdm_allow_idle(struct clockdomain *clkdm)
* dependency code and data for OMAP4.
*/
if (cpu_is_omap44xx()) {
WARN_ONCE(1, "clockdomain: OMAP4 wakeup/sleep dependency "
"support is not yet implemented\n");
pr_err("clockdomain: %s: OMAP4 wakeup/sleep dependency support: not yet implemented\n", clkdm->name);
} else {
if (atomic_read(&clkdm->usecount) > 0)
_clkdm_add_autodeps(clkdm);
@ -872,8 +895,7 @@ void omap2_clkdm_deny_idle(struct clockdomain *clkdm)
* dependency code and data for OMAP4.
*/
if (cpu_is_omap44xx()) {
WARN_ONCE(1, "clockdomain: OMAP4 wakeup/sleep dependency "
"support is not yet implemented\n");
pr_err("clockdomain: %s: OMAP4 wakeup/sleep dependency support: not yet implemented\n", clkdm->name);
} else {
if (atomic_read(&clkdm->usecount) > 0)
_clkdm_del_autodeps(clkdm);

2
arch/arm/mach-omap2/clockdomains44xx_data.c
View File

@ -30,8 +30,6 @@
#include "cm1_44xx.h"
#include "cm2_44xx.h"
#include "cm1_44xx.h"
#include "cm2_44xx.h"
#include "cm-regbits-44xx.h"
#include "prm44xx.h"
#include "prcm44xx.h"

1
arch/arm/mach-omap2/powerdomain2xxx_3xxx.c
View File

@ -19,7 +19,6 @@
#include <plat/prcm.h>
#include "powerdomain.h"
#include "prm-regbits-34xx.h"
#include "prm.h"
#include "prm-regbits-24xx.h"
#include "prm-regbits-34xx.h"

10
arch/arm/mach-omap2/timer-gp.c
View File

@ -42,6 +42,8 @@
#include "timer-gp.h"
#include <plat/common.h>
/* MAX_GPTIMER_ID: number of GPTIMERs on the chip */
#define MAX_GPTIMER_ID 12
@ -176,10 +178,14 @@ static void __init omap2_gp_clockevent_init(void)
/*
* When 32k-timer is enabled, don't use GPTimer for clocksource
* instead, just leave default clocksource which uses the 32k
* sync counter. See clocksource setup in see plat-omap/common.c.
* sync counter. See clocksource setup in plat-omap/counter_32k.c
*/
static inline void __init omap2_gp_clocksource_init(void) {}
static void __init omap2_gp_clocksource_init(void)
{
omap_init_clocksource_32k();
}
#else
/*
* clocksource

8
arch/arm/plat-omap/Kconfig
View File

@ -144,12 +144,9 @@ config OMAP_IOMMU_DEBUG
config OMAP_IOMMU_IVA2
bool
choice
prompt "System timer"
default OMAP_32K_TIMER if !ARCH_OMAP15XX
config OMAP_MPU_TIMER
bool "Use mpu timer"
depends on ARCH_OMAP1
help
Select this option if you want to use the OMAP mpu timer. This
timer provides more intra-tick resolution than the 32KHz timer,
@ -158,6 +155,7 @@ config OMAP_MPU_TIMER
config OMAP_32K_TIMER
bool "Use 32KHz timer"
depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
default y if (ARCH_OMAP16XX || ARCH_OMAP2PLUS)
help
Select this option if you want to enable the OMAP 32KHz timer.
This timer saves power compared to the OMAP_MPU_TIMER, and has
@ -165,8 +163,6 @@ config OMAP_32K_TIMER
intra-tick resolution than OMAP_MPU_TIMER. The 32KHz timer is
currently only available for OMAP16XX, 24XX, 34XX and OMAP4.
endchoice
config OMAP3_L2_AUX_SECURE_SAVE_RESTORE
bool "OMAP3 HS/EMU save and restore for L2 AUX control register"
depends on ARCH_OMAP3 && PM

22
arch/arm/plat-omap/counter_32k.c
View File

@ -36,8 +36,6 @@
#define OMAP16XX_TIMER_32K_SYNCHRONIZED 0xfffbc410
#if !(defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP15XX))
#include <linux/clocksource.h>
/*
@ -122,12 +120,24 @@ static DEFINE_CLOCK_DATA(cd);
#define SC_MULT 4000000000u
#define SC_SHIFT 17
unsigned long long notrace sched_clock(void)
static inline unsigned long long notrace _omap_32k_sched_clock(void)
{
u32 cyc = clocksource_32k.read(&clocksource_32k);
return cyc_to_fixed_sched_clock(&cd, cyc, (u32)~0, SC_MULT, SC_SHIFT);
}
#ifndef CONFIG_OMAP_MPU_TIMER
unsigned long long notrace sched_clock(void)
{
return _omap_32k_sched_clock();
}
#else
unsigned long long notrace omap_32k_sched_clock(void)
{
return _omap_32k_sched_clock();
}
#endif
static void notrace omap_update_sched_clock(void)
{
u32 cyc = clocksource_32k.read(&clocksource_32k);
@ -160,7 +170,7 @@ void read_persistent_clock(struct timespec *ts)
*ts = *tsp;
}
static int __init omap_init_clocksource_32k(void)
int __init omap_init_clocksource_32k(void)
{
static char err[] __initdata = KERN_ERR
"%s: can't register clocksource!\n";
@ -195,7 +205,3 @@ static int __init omap_init_clocksource_32k(void)
}
return 0;
}
arch_initcall(omap_init_clocksource_32k);
#endif /* !(defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP15XX)) */

7
arch/arm/plat-omap/dma.c
View File

@ -53,7 +53,7 @@ enum { DMA_CHAIN_STARTED, DMA_CHAIN_NOTSTARTED };
#endif
#define OMAP_DMA_ACTIVE 0x01
#define OMAP2_DMA_CSR_CLEAR_MASK 0xffe
#define OMAP2_DMA_CSR_CLEAR_MASK 0xffffffff
#define OMAP_FUNC_MUX_ARM_BASE (0xfffe1000 + 0xec)
@ -1873,7 +1873,7 @@ static int omap2_dma_handle_ch(int ch)
printk(KERN_INFO "DMA misaligned error with device %d\n",
dma_chan[ch].dev_id);
p->dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR, ch);
p->dma_write(status, CSR, ch);
p->dma_write(1 << ch, IRQSTATUS_L0, ch);
/* read back the register to flush the write */
p->dma_read(IRQSTATUS_L0, ch);
@ -1893,10 +1893,9 @@ static int omap2_dma_handle_ch(int ch)
OMAP_DMA_CHAIN_INCQHEAD(chain_id);
status = p->dma_read(CSR, ch);
p->dma_write(status, CSR, ch);
}
p->dma_write(status, CSR, ch);
if (likely(dma_chan[ch].callback != NULL))
dma_chan[ch].callback(ch, status, dma_chan[ch].data);

3
arch/arm/plat-omap/include/plat/common.h
View File

@ -35,6 +35,9 @@ struct sys_timer;
extern void omap_map_common_io(void);
extern struct sys_timer omap_timer;
extern bool omap_32k_timer_init(void);
extern int __init omap_init_clocksource_32k(void);
extern unsigned long long notrace omap_32k_sched_clock(void);
extern void omap_reserve(void);