| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279 | /* * arch/arm/mach-at91/at91sam9260.c * *  Copyright (C) 2006 SAN People * * 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/cpu.h>#include <mach/at91_dbgu.h>#include <mach/at91sam9260.h>#include <mach/at91_pmc.h>#include "at91_aic.h"#include "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 << AT91SAM9260_ID_PIOA,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk pioB_clk = {	.name		= "pioB_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_PIOB,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk pioC_clk = {	.name		= "pioC_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_PIOC,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk adc_clk = {	.name		= "adc_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_ADC,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk adc_op_clk = {	.name		= "adc_op_clk",	.type		= CLK_TYPE_PERIPHERAL,	.rate_hz	= 5000000,};static struct clk usart0_clk = {	.name		= "usart0_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_US0,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk usart1_clk = {	.name		= "usart1_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_US1,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk usart2_clk = {	.name		= "usart2_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_US2,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk mmc_clk = {	.name		= "mci_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_MCI,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk udc_clk = {	.name		= "udc_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_UDP,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk twi_clk = {	.name		= "twi_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_TWI,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk spi0_clk = {	.name		= "spi0_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_SPI0,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk spi1_clk = {	.name		= "spi1_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_SPI1,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk ssc_clk = {	.name		= "ssc_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_SSC,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk tc0_clk = {	.name		= "tc0_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_TC0,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk tc1_clk = {	.name		= "tc1_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_TC1,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk tc2_clk = {	.name		= "tc2_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_TC2,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk ohci_clk = {	.name		= "ohci_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_UHP,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk macb_clk = {	.name		= "pclk",	.pmc_mask	= 1 << AT91SAM9260_ID_EMAC,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk isi_clk = {	.name		= "isi_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_ISI,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk usart3_clk = {	.name		= "usart3_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_US3,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk usart4_clk = {	.name		= "usart4_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_US4,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk usart5_clk = {	.name		= "usart5_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_US5,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk tc3_clk = {	.name		= "tc3_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_TC3,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk tc4_clk = {	.name		= "tc4_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_TC4,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk tc5_clk = {	.name		= "tc5_clk",	.pmc_mask	= 1 << AT91SAM9260_ID_TC5,	.type		= CLK_TYPE_PERIPHERAL,};static struct clk *periph_clocks[] __initdata = {	&pioA_clk,	&pioB_clk,	&pioC_clk,	&adc_clk,	&adc_op_clk,	&usart0_clk,	&usart1_clk,	&usart2_clk,	&mmc_clk,	&udc_clk,	&twi_clk,	&spi0_clk,	&spi1_clk,	&ssc_clk,	&tc0_clk,	&tc1_clk,	&tc2_clk,	&ohci_clk,	&macb_clk,	&isi_clk,	&usart3_clk,	&usart4_clk,	&usart5_clk,	&tc3_clk,	&tc4_clk,	&tc5_clk,	// irq0 .. irq2};static struct clk_lookup periph_clocks_lookups[] = {	/* One additional fake clock for macb_hclk */	CLKDEV_CON_ID("hclk", &macb_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", &tc0_clk),	CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.0", &tc1_clk),	CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.0", &tc2_clk),	CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.1", &tc3_clk),	CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.1", &tc4_clk),	CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.1", &tc5_clk),	CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.0", &ssc_clk),	CLKDEV_CON_DEV_ID("pclk", "fffbc000.ssc", &ssc_clk),	CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9260.0", &twi_clk),	CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g20.0", &twi_clk),	/* more usart lookup table for DT entries */	CLKDEV_CON_DEV_ID("usart", "fffff200.serial", &mck),	CLKDEV_CON_DEV_ID("usart", "fffb0000.serial", &usart0_clk),	CLKDEV_CON_DEV_ID("usart", "fffb4000.serial", &usart1_clk),	CLKDEV_CON_DEV_ID("usart", "fffb8000.serial", &usart2_clk),	CLKDEV_CON_DEV_ID("usart", "fffd0000.serial", &usart3_clk),	CLKDEV_CON_DEV_ID("usart", "fffd4000.serial", &usart4_clk),	CLKDEV_CON_DEV_ID("usart", "fffd8000.serial", &usart5_clk),	CLKDEV_CON_DEV_ID(NULL, "fffac000.i2c", &twi_clk),	/* more tc lookup table for DT entries */	CLKDEV_CON_DEV_ID("t0_clk", "fffa0000.timer", &tc0_clk),	CLKDEV_CON_DEV_ID("t1_clk", "fffa0000.timer", &tc1_clk),	CLKDEV_CON_DEV_ID("t2_clk", "fffa0000.timer", &tc2_clk),	CLKDEV_CON_DEV_ID("t0_clk", "fffdc000.timer", &tc3_clk),	CLKDEV_CON_DEV_ID("t1_clk", "fffdc000.timer", &tc4_clk),	CLKDEV_CON_DEV_ID("t2_clk", "fffdc000.timer", &tc5_clk),	CLKDEV_CON_DEV_ID("hclk", "500000.ohci", &ohci_clk),	CLKDEV_CON_DEV_ID("mci_clk", "fffa8000.mmc", &mmc_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", &pioC_clk),	CLKDEV_CON_DEV_ID(NULL, "fffff400.gpio", &pioA_clk),	CLKDEV_CON_DEV_ID(NULL, "fffff600.gpio", &pioB_clk),	CLKDEV_CON_DEV_ID(NULL, "fffff800.gpio", &pioC_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),	CLKDEV_CON_DEV_ID("usart", "atmel_usart.5", &usart4_clk),	CLKDEV_CON_DEV_ID("usart", "atmel_usart.6", &usart5_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,	.type		= CLK_TYPE_PROGRAMMABLE,	.id		= 1,};static void __init at91sam9260_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,
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