374 lines
9.6 KiB
C
374 lines
9.6 KiB
C
/*
|
|
* arch/arm/mach-at91/at91sam9263.c
|
|
*
|
|
* Copyright (C) 2007 Atmel Corporation.
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
|
|
#include <asm/proc-fns.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/map.h>
|
|
#include <asm/system_misc.h>
|
|
#include <mach/at91sam9263.h>
|
|
#include <mach/at91_pmc.h>
|
|
#include <mach/at91_rstc.h>
|
|
|
|
#include "soc.h"
|
|
#include "generic.h"
|
|
#include "clock.h"
|
|
#include "sam9_smc.h"
|
|
|
|
/* --------------------------------------------------------------------
|
|
* Clocks
|
|
* -------------------------------------------------------------------- */
|
|
|
|
/*
|
|
* The peripheral clocks.
|
|
*/
|
|
static struct clk pioA_clk = {
|
|
.name = "pioA_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_PIOA,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk pioB_clk = {
|
|
.name = "pioB_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_PIOB,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk pioCDE_clk = {
|
|
.name = "pioCDE_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_PIOCDE,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk usart0_clk = {
|
|
.name = "usart0_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_US0,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk usart1_clk = {
|
|
.name = "usart1_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_US1,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk usart2_clk = {
|
|
.name = "usart2_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_US2,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk mmc0_clk = {
|
|
.name = "mci0_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_MCI0,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk mmc1_clk = {
|
|
.name = "mci1_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_MCI1,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk can_clk = {
|
|
.name = "can_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_CAN,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk twi_clk = {
|
|
.name = "twi_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_TWI,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk spi0_clk = {
|
|
.name = "spi0_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_SPI0,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk spi1_clk = {
|
|
.name = "spi1_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_SPI1,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk ssc0_clk = {
|
|
.name = "ssc0_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_SSC0,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk ssc1_clk = {
|
|
.name = "ssc1_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_SSC1,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk ac97_clk = {
|
|
.name = "ac97_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_AC97C,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk tcb_clk = {
|
|
.name = "tcb_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_TCB,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk pwm_clk = {
|
|
.name = "pwm_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_PWMC,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk macb_clk = {
|
|
.name = "pclk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_EMAC,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk dma_clk = {
|
|
.name = "dma_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_DMA,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk twodge_clk = {
|
|
.name = "2dge_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_2DGE,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk udc_clk = {
|
|
.name = "udc_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_UDP,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk isi_clk = {
|
|
.name = "isi_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_ISI,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk lcdc_clk = {
|
|
.name = "lcdc_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_LCDC,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
static struct clk ohci_clk = {
|
|
.name = "ohci_clk",
|
|
.pmc_mask = 1 << AT91SAM9263_ID_UHP,
|
|
.type = CLK_TYPE_PERIPHERAL,
|
|
};
|
|
|
|
static struct clk *periph_clocks[] __initdata = {
|
|
&pioA_clk,
|
|
&pioB_clk,
|
|
&pioCDE_clk,
|
|
&usart0_clk,
|
|
&usart1_clk,
|
|
&usart2_clk,
|
|
&mmc0_clk,
|
|
&mmc1_clk,
|
|
&can_clk,
|
|
&twi_clk,
|
|
&spi0_clk,
|
|
&spi1_clk,
|
|
&ssc0_clk,
|
|
&ssc1_clk,
|
|
&ac97_clk,
|
|
&tcb_clk,
|
|
&pwm_clk,
|
|
&macb_clk,
|
|
&twodge_clk,
|
|
&udc_clk,
|
|
&isi_clk,
|
|
&lcdc_clk,
|
|
&dma_clk,
|
|
&ohci_clk,
|
|
// irq0 .. irq1
|
|
};
|
|
|
|
static struct clk_lookup periph_clocks_lookups[] = {
|
|
/* One additional fake clock for macb_hclk */
|
|
CLKDEV_CON_ID("hclk", &macb_clk),
|
|
CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
|
|
CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
|
|
CLKDEV_CON_DEV_ID("mci_clk", "at91_mci.0", &mmc0_clk),
|
|
CLKDEV_CON_DEV_ID("mci_clk", "at91_mci.1", &mmc1_clk),
|
|
CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.0", &spi0_clk),
|
|
CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.1", &spi1_clk),
|
|
CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tcb_clk),
|
|
/* fake hclk clock */
|
|
CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk),
|
|
CLKDEV_CON_ID("pioA", &pioA_clk),
|
|
CLKDEV_CON_ID("pioB", &pioB_clk),
|
|
CLKDEV_CON_ID("pioC", &pioCDE_clk),
|
|
CLKDEV_CON_ID("pioD", &pioCDE_clk),
|
|
CLKDEV_CON_ID("pioE", &pioCDE_clk),
|
|
};
|
|
|
|
static struct clk_lookup usart_clocks_lookups[] = {
|
|
CLKDEV_CON_DEV_ID("usart", "atmel_usart.0", &mck),
|
|
CLKDEV_CON_DEV_ID("usart", "atmel_usart.1", &usart0_clk),
|
|
CLKDEV_CON_DEV_ID("usart", "atmel_usart.2", &usart1_clk),
|
|
CLKDEV_CON_DEV_ID("usart", "atmel_usart.3", &usart2_clk),
|
|
};
|
|
|
|
/*
|
|
* The four programmable clocks.
|
|
* You must configure pin multiplexing to bring these signals out.
|
|
*/
|
|
static struct clk pck0 = {
|
|
.name = "pck0",
|
|
.pmc_mask = AT91_PMC_PCK0,
|
|
.type = CLK_TYPE_PROGRAMMABLE,
|
|
.id = 0,
|
|
};
|
|
static struct clk pck1 = {
|
|
.name = "pck1",
|
|
.pmc_mask = AT91_PMC_PCK1,
|
|
.type = CLK_TYPE_PROGRAMMABLE,
|
|
.id = 1,
|
|
};
|
|
static struct clk pck2 = {
|
|
.name = "pck2",
|
|
.pmc_mask = AT91_PMC_PCK2,
|
|
.type = CLK_TYPE_PROGRAMMABLE,
|
|
.id = 2,
|
|
};
|
|
static struct clk pck3 = {
|
|
.name = "pck3",
|
|
.pmc_mask = AT91_PMC_PCK3,
|
|
.type = CLK_TYPE_PROGRAMMABLE,
|
|
.id = 3,
|
|
};
|
|
|
|
static void __init at91sam9263_register_clocks(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(periph_clocks); i++)
|
|
clk_register(periph_clocks[i]);
|
|
|
|
clkdev_add_table(periph_clocks_lookups,
|
|
ARRAY_SIZE(periph_clocks_lookups));
|
|
clkdev_add_table(usart_clocks_lookups,
|
|
ARRAY_SIZE(usart_clocks_lookups));
|
|
|
|
clk_register(&pck0);
|
|
clk_register(&pck1);
|
|
clk_register(&pck2);
|
|
clk_register(&pck3);
|
|
}
|
|
|
|
static struct clk_lookup console_clock_lookup;
|
|
|
|
void __init at91sam9263_set_console_clock(int id)
|
|
{
|
|
if (id >= ARRAY_SIZE(usart_clocks_lookups))
|
|
return;
|
|
|
|
console_clock_lookup.con_id = "usart";
|
|
console_clock_lookup.clk = usart_clocks_lookups[id].clk;
|
|
clkdev_add(&console_clock_lookup);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------
|
|
* GPIO
|
|
* -------------------------------------------------------------------- */
|
|
|
|
static struct at91_gpio_bank at91sam9263_gpio[] __initdata = {
|
|
{
|
|
.id = AT91SAM9263_ID_PIOA,
|
|
.regbase = AT91SAM9263_BASE_PIOA,
|
|
}, {
|
|
.id = AT91SAM9263_ID_PIOB,
|
|
.regbase = AT91SAM9263_BASE_PIOB,
|
|
}, {
|
|
.id = AT91SAM9263_ID_PIOCDE,
|
|
.regbase = AT91SAM9263_BASE_PIOC,
|
|
}, {
|
|
.id = AT91SAM9263_ID_PIOCDE,
|
|
.regbase = AT91SAM9263_BASE_PIOD,
|
|
}, {
|
|
.id = AT91SAM9263_ID_PIOCDE,
|
|
.regbase = AT91SAM9263_BASE_PIOE,
|
|
}
|
|
};
|
|
|
|
/* --------------------------------------------------------------------
|
|
* AT91SAM9263 processor initialization
|
|
* -------------------------------------------------------------------- */
|
|
|
|
static void __init at91sam9263_map_io(void)
|
|
{
|
|
at91_init_sram(0, AT91SAM9263_SRAM0_BASE, AT91SAM9263_SRAM0_SIZE);
|
|
at91_init_sram(1, AT91SAM9263_SRAM1_BASE, AT91SAM9263_SRAM1_SIZE);
|
|
}
|
|
|
|
static void __init at91sam9263_ioremap_registers(void)
|
|
{
|
|
at91_ioremap_shdwc(AT91SAM9263_BASE_SHDWC);
|
|
at91_ioremap_rstc(AT91SAM9263_BASE_RSTC);
|
|
at91_ioremap_ramc(0, AT91SAM9263_BASE_SDRAMC0, 512);
|
|
at91_ioremap_ramc(1, AT91SAM9263_BASE_SDRAMC1, 512);
|
|
at91sam926x_ioremap_pit(AT91SAM9263_BASE_PIT);
|
|
at91sam9_ioremap_smc(0, AT91SAM9263_BASE_SMC0);
|
|
at91sam9_ioremap_smc(1, AT91SAM9263_BASE_SMC1);
|
|
at91_ioremap_matrix(AT91SAM9263_BASE_MATRIX);
|
|
}
|
|
|
|
static void __init at91sam9263_initialize(void)
|
|
{
|
|
arm_pm_idle = at91sam9_idle;
|
|
arm_pm_restart = at91sam9_alt_restart;
|
|
at91_extern_irq = (1 << AT91SAM9263_ID_IRQ0) | (1 << AT91SAM9263_ID_IRQ1);
|
|
|
|
/* Register GPIO subsystem */
|
|
at91_gpio_init(at91sam9263_gpio, 5);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------
|
|
* Interrupt initialization
|
|
* -------------------------------------------------------------------- */
|
|
|
|
/*
|
|
* The default interrupt priority levels (0 = lowest, 7 = highest).
|
|
*/
|
|
static unsigned int at91sam9263_default_irq_priority[NR_AIC_IRQS] __initdata = {
|
|
7, /* Advanced Interrupt Controller (FIQ) */
|
|
7, /* System Peripherals */
|
|
1, /* Parallel IO Controller A */
|
|
1, /* Parallel IO Controller B */
|
|
1, /* Parallel IO Controller C, D and E */
|
|
0,
|
|
0,
|
|
5, /* USART 0 */
|
|
5, /* USART 1 */
|
|
5, /* USART 2 */
|
|
0, /* Multimedia Card Interface 0 */
|
|
0, /* Multimedia Card Interface 1 */
|
|
3, /* CAN */
|
|
6, /* Two-Wire Interface */
|
|
5, /* Serial Peripheral Interface 0 */
|
|
5, /* Serial Peripheral Interface 1 */
|
|
4, /* Serial Synchronous Controller 0 */
|
|
4, /* Serial Synchronous Controller 1 */
|
|
5, /* AC97 Controller */
|
|
0, /* Timer Counter 0, 1 and 2 */
|
|
0, /* Pulse Width Modulation Controller */
|
|
3, /* Ethernet */
|
|
0,
|
|
0, /* 2D Graphic Engine */
|
|
2, /* USB Device Port */
|
|
0, /* Image Sensor Interface */
|
|
3, /* LDC Controller */
|
|
0, /* DMA Controller */
|
|
0,
|
|
2, /* USB Host port */
|
|
0, /* Advanced Interrupt Controller (IRQ0) */
|
|
0, /* Advanced Interrupt Controller (IRQ1) */
|
|
};
|
|
|
|
struct at91_init_soc __initdata at91sam9263_soc = {
|
|
.map_io = at91sam9263_map_io,
|
|
.default_irq_priority = at91sam9263_default_irq_priority,
|
|
.ioremap_registers = at91sam9263_ioremap_registers,
|
|
.register_clocks = at91sam9263_register_clocks,
|
|
.init = at91sam9263_initialize,
|
|
};
|