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- /*
- * Chip-specific setup code for the AT91SAM9G45 family
- *
- * Copyright (C) 2009 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 <linux/dma-mapping.h>
- #include <asm/irq.h>
- #include <asm/mach/arch.h>
- #include <asm/mach/map.h>
- #include <asm/system_misc.h>
- #include <mach/at91sam9g45.h>
- #include <mach/at91_pmc.h>
- #include <mach/cpu.h>
- #include "at91_aic.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 << AT91SAM9G45_ID_PIOA,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk pioB_clk = {
- .name = "pioB_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_PIOB,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk pioC_clk = {
- .name = "pioC_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_PIOC,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk pioDE_clk = {
- .name = "pioDE_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_PIODE,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk trng_clk = {
- .name = "trng_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_TRNG,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk usart0_clk = {
- .name = "usart0_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_US0,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk usart1_clk = {
- .name = "usart1_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_US1,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk usart2_clk = {
- .name = "usart2_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_US2,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk usart3_clk = {
- .name = "usart3_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_US3,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk mmc0_clk = {
- .name = "mci0_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_MCI0,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk twi0_clk = {
- .name = "twi0_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_TWI0,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk twi1_clk = {
- .name = "twi1_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_TWI1,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk spi0_clk = {
- .name = "spi0_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_SPI0,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk spi1_clk = {
- .name = "spi1_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_SPI1,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk ssc0_clk = {
- .name = "ssc0_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_SSC0,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk ssc1_clk = {
- .name = "ssc1_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_SSC1,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk tcb0_clk = {
- .name = "tcb0_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_TCB,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk pwm_clk = {
- .name = "pwm_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_PWMC,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk tsc_clk = {
- .name = "tsc_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_TSC,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk dma_clk = {
- .name = "dma_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_DMA,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk uhphs_clk = {
- .name = "uhphs_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_UHPHS,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk lcdc_clk = {
- .name = "lcdc_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_LCDC,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk ac97_clk = {
- .name = "ac97_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_AC97C,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk macb_clk = {
- .name = "pclk",
- .pmc_mask = 1 << AT91SAM9G45_ID_EMAC,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk isi_clk = {
- .name = "isi_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_ISI,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk udphs_clk = {
- .name = "udphs_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_UDPHS,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk mmc1_clk = {
- .name = "mci1_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_MCI1,
- .type = CLK_TYPE_PERIPHERAL,
- };
- /* Video decoder clock - Only for sam9m10/sam9m11 */
- static struct clk vdec_clk = {
- .name = "vdec_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_VDEC,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk adc_op_clk = {
- .name = "adc_op_clk",
- .type = CLK_TYPE_PERIPHERAL,
- .rate_hz = 13200000,
- };
- /* AES/TDES/SHA clock - Only for sam9m11/sam9g56 */
- static struct clk aestdessha_clk = {
- .name = "aestdessha_clk",
- .pmc_mask = 1 << AT91SAM9G45_ID_AESTDESSHA,
- .type = CLK_TYPE_PERIPHERAL,
- };
- static struct clk *periph_clocks[] __initdata = {
- &pioA_clk,
- &pioB_clk,
- &pioC_clk,
- &pioDE_clk,
- &trng_clk,
- &usart0_clk,
- &usart1_clk,
- &usart2_clk,
- &usart3_clk,
- &mmc0_clk,
- &twi0_clk,
- &twi1_clk,
- &spi0_clk,
- &spi1_clk,
- &ssc0_clk,
- &ssc1_clk,
- &tcb0_clk,
- &pwm_clk,
- &tsc_clk,
- &dma_clk,
- &uhphs_clk,
- &lcdc_clk,
- &ac97_clk,
- &macb_clk,
- &isi_clk,
- &udphs_clk,
- &mmc1_clk,
- &adc_op_clk,
- &aestdessha_clk,
- // irq0
- };
- static struct clk_lookup periph_clocks_lookups[] = {
- /* One additional fake clock for macb_hclk */
- CLKDEV_CON_ID("hclk", &macb_clk),
- /* One additional fake clock for ohci */
- CLKDEV_CON_ID("ohci_clk", &uhphs_clk),
- CLKDEV_CON_DEV_ID("ehci_clk", "atmel-ehci", &uhphs_clk),
- CLKDEV_CON_DEV_ID("hclk", "atmel_usba_udc", &utmi_clk),
- CLKDEV_CON_DEV_ID("pclk", "atmel_usba_udc", &udphs_clk),
- CLKDEV_CON_DEV_ID("mci_clk", "atmel_mci.0", &mmc0_clk),
- CLKDEV_CON_DEV_ID("mci_clk", "atmel_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", &tcb0_clk),
- CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.1", &tcb0_clk),
- CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g10.0", &twi0_clk),
- CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g10.1", &twi1_clk),
- CLKDEV_CON_DEV_ID("pclk", "at91sam9g45_ssc.0", &ssc0_clk),
- CLKDEV_CON_DEV_ID("pclk", "at91sam9g45_ssc.1", &ssc1_clk),
- CLKDEV_CON_DEV_ID("pclk", "fff9c000.ssc", &ssc0_clk),
- CLKDEV_CON_DEV_ID("pclk", "fffa0000.ssc", &ssc1_clk),
- CLKDEV_CON_DEV_ID(NULL, "atmel-trng", &trng_clk),
- CLKDEV_CON_DEV_ID(NULL, "atmel_sha", &aestdessha_clk),
- CLKDEV_CON_DEV_ID(NULL, "atmel_tdes", &aestdessha_clk),
- CLKDEV_CON_DEV_ID(NULL, "atmel_aes", &aestdessha_clk),
- /* more usart lookup table for DT entries */
- CLKDEV_CON_DEV_ID("usart", "ffffee00.serial", &mck),
- CLKDEV_CON_DEV_ID("usart", "fff8c000.serial", &usart0_clk),
- CLKDEV_CON_DEV_ID("usart", "fff90000.serial", &usart1_clk),
- CLKDEV_CON_DEV_ID("usart", "fff94000.serial", &usart2_clk),
- CLKDEV_CON_DEV_ID("usart", "fff98000.serial", &usart3_clk),
- /* more tc lookup table for DT entries */
- CLKDEV_CON_DEV_ID("t0_clk", "fff7c000.timer", &tcb0_clk),
- CLKDEV_CON_DEV_ID("t0_clk", "fffd4000.timer", &tcb0_clk),
- CLKDEV_CON_DEV_ID("hclk", "700000.ohci", &uhphs_clk),
- CLKDEV_CON_DEV_ID("ehci_clk", "800000.ehci", &uhphs_clk),
- CLKDEV_CON_DEV_ID("mci_clk", "fff80000.mmc", &mmc0_clk),
- CLKDEV_CON_DEV_ID("mci_clk", "fffd0000.mmc", &mmc1_clk),
- CLKDEV_CON_DEV_ID(NULL, "fff84000.i2c", &twi0_clk),
- CLKDEV_CON_DEV_ID(NULL, "fff88000.i2c", &twi1_clk),
- /* fake hclk clock */
- CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &uhphs_clk),
- CLKDEV_CON_DEV_ID(NULL, "fffff200.gpio", &pioA_clk),
- CLKDEV_CON_DEV_ID(NULL, "fffff400.gpio", &pioB_clk),
- CLKDEV_CON_DEV_ID(NULL, "fffff600.gpio", &pioC_clk),
- CLKDEV_CON_DEV_ID(NULL, "fffff800.gpio", &pioDE_clk),
- CLKDEV_CON_DEV_ID(NULL, "fffffa00.gpio", &pioDE_clk),
- CLKDEV_CON_ID("pioA", &pioA_clk),
- CLKDEV_CON_ID("pioB", &pioB_clk),
- CLKDEV_CON_ID("pioC", &pioC_clk),
- CLKDEV_CON_ID("pioD", &pioDE_clk),
- CLKDEV_CON_ID("pioE", &pioDE_clk),
- /* Fake adc clock */
- CLKDEV_CON_ID("adc_clk", &tsc_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),
- CLKDEV_CON_DEV_ID("usart", "atmel_usart.4", &usart3_clk),
- };
- /*
- * The two 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,
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