| /* |
| * 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 <linux/clk/at91_pmc.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/hardware.h> |
| |
| #include "at91_aic.h" |
| #include "at91_rstc.h" |
| #include "soc.h" |
| #include "generic.h" |
| #include "clock.h" |
| #include "sam9_smc.h" |
| #include "pm.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", "at91rm9200_ssc.0", &ssc0_clk), |
| CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.1", &ssc1_clk), |
| CLKDEV_CON_DEV_ID("pclk", "fff98000.ssc", &ssc0_clk), |
| CLKDEV_CON_DEV_ID("pclk", "fff9c000.ssc", &ssc1_clk), |
| CLKDEV_CON_DEV_ID("hclk", "at91sam9263-lcdfb.0", &lcdc_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", &tcb_clk), |
| CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9260.0", &twi_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), |
| /* 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), |
| /* more tc lookup table for DT entries */ |
| CLKDEV_CON_DEV_ID("t0_clk", "fff7c000.timer", &tcb_clk), |
| CLKDEV_CON_DEV_ID("hclk", "a00000.ohci", &ohci_clk), |
| CLKDEV_CON_DEV_ID("spi_clk", "fffa4000.spi", &spi0_clk), |
| CLKDEV_CON_DEV_ID("spi_clk", "fffa8000.spi", &spi1_clk), |
| CLKDEV_CON_DEV_ID("mci_clk", "fff80000.mmc", &mmc0_clk), |
| CLKDEV_CON_DEV_ID("mci_clk", "fff84000.mmc", &mmc1_clk), |
| CLKDEV_CON_DEV_ID(NULL, "fff88000.i2c", &twi_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", &pioCDE_clk), |
| CLKDEV_CON_DEV_ID(NULL, "fffff800.gpio", &pioCDE_clk), |
| CLKDEV_CON_DEV_ID(NULL, "fffffa00.gpio", &pioCDE_clk), |
| CLKDEV_CON_DEV_ID(NULL, "fffb8000.pwm", &pwm_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); |
| } |
| |
| /* -------------------------------------------------------------------- |
| * 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); |
| at91_pm_set_standby(at91sam9_sdram_standby); |
| } |
| |
| static void __init at91sam9263_initialize(void) |
| { |
| arm_pm_idle = at91sam9_idle; |
| arm_pm_restart = at91sam9_alt_restart; |
| |
| at91_sysirq_mask_rtt(AT91SAM9263_BASE_RTT0); |
| at91_sysirq_mask_rtt(AT91SAM9263_BASE_RTT1); |
| |
| /* 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) */ |
| }; |
| |
| AT91_SOC_START(at91sam9263) |
| .map_io = at91sam9263_map_io, |
| .default_irq_priority = at91sam9263_default_irq_priority, |
| .extern_irq = (1 << AT91SAM9263_ID_IRQ0) | (1 << AT91SAM9263_ID_IRQ1), |
| .ioremap_registers = at91sam9263_ioremap_registers, |
| .register_clocks = at91sam9263_register_clocks, |
| .init = at91sam9263_initialize, |
| AT91_SOC_END |
