From: Andrew Victor Date: Fri, 11 May 2007 19:49:56 +0000 (+0100) Subject: [ARM] 4370/3: AT91: Support for Atmel AT91SAM9RL processors. X-Git-Tag: v2.6.22-rc1~1^2~8 X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;ds=sidebyside;h=877d7720f5f67793b9b6027840d2c88ea25dc4c8;p=linux-2.6-omap-h63xx.git [ARM] 4370/3: AT91: Support for Atmel AT91SAM9RL processors. Add support for Atmel's new AT91SAM9RL range of processors. Includes similar peripherals as other AT91SAM9 processors, but with a High-speed USB controller and various sizes of internal SRAM. Signed-off-by: Nicolas Ferre Signed-off-by: Andrew Victor Signed-off-by: Russell King --- diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig index 018d637f87f..1ba120c5cd0 100644 --- a/arch/arm/mach-at91/Kconfig +++ b/arch/arm/mach-at91/Kconfig @@ -17,6 +17,9 @@ config ARCH_AT91SAM9261 config ARCH_AT91SAM9263 bool "AT91SAM9263" +config ARCH_AT91SAM9RL + bool "AT91SAM9RL" + endchoice # ---------------------------------------------------------- diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile index a412ae18a42..66d79e6c68a 100644 --- a/arch/arm/mach-at91/Makefile +++ b/arch/arm/mach-at91/Makefile @@ -14,6 +14,7 @@ obj-$(CONFIG_ARCH_AT91RM9200) += at91rm9200.o at91rm9200_time.o at91rm9200_devic obj-$(CONFIG_ARCH_AT91SAM9260) += at91sam9260.o at91sam926x_time.o at91sam9260_devices.o obj-$(CONFIG_ARCH_AT91SAM9261) += at91sam9261.o at91sam926x_time.o at91sam9261_devices.o obj-$(CONFIG_ARCH_AT91SAM9263) += at91sam9263.o at91sam926x_time.o at91sam9263_devices.o +obj-$(CONFIG_ARCH_AT91SAM9RL) += at91sam9rl.o at91sam926x_time.o at91sam9rl_devices.o # AT91RM9200 board-specific support obj-$(CONFIG_MACH_ONEARM) += board-1arm.o diff --git a/arch/arm/mach-at91/at91sam9rl.c b/arch/arm/mach-at91/at91sam9rl.c new file mode 100644 index 00000000000..4813a35f6cf --- /dev/null +++ b/arch/arm/mach-at91/at91sam9rl.c @@ -0,0 +1,341 @@ +/* + * arch/arm/mach-at91/at91sam9rl.c + * + * Copyright (C) 2005 SAN People + * Copyright (C) 2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive for + * more details. + */ + +#include + +#include +#include +#include +#include +#include +#include + +#include "generic.h" +#include "clock.h" + +static struct map_desc at91sam9rl_io_desc[] __initdata = { + { + .virtual = AT91_VA_BASE_SYS, + .pfn = __phys_to_pfn(AT91_BASE_SYS), + .length = SZ_16K, + .type = MT_DEVICE, + }, +}; + +static struct map_desc at91sam9rl_sram_desc[] __initdata = { + { + .pfn = __phys_to_pfn(AT91SAM9RL_SRAM_BASE), + .type = MT_DEVICE, + } +}; + +/* -------------------------------------------------------------------- + * Clocks + * -------------------------------------------------------------------- */ + +/* + * The peripheral clocks. + */ +static struct clk pioA_clk = { + .name = "pioA_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_PIOA, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk pioB_clk = { + .name = "pioB_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_PIOB, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk pioC_clk = { + .name = "pioC_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_PIOC, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk pioD_clk = { + .name = "pioD_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_PIOD, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk usart0_clk = { + .name = "usart0_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_US0, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk usart1_clk = { + .name = "usart1_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_US1, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk usart2_clk = { + .name = "usart2_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_US2, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk usart3_clk = { + .name = "usart3_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_US3, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk mmc_clk = { + .name = "mci_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_MCI, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk twi0_clk = { + .name = "twi0_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_TWI0, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk twi1_clk = { + .name = "twi1_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_TWI1, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk spi_clk = { + .name = "spi_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_SPI, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk ssc0_clk = { + .name = "ssc0_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_SSC0, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk ssc1_clk = { + .name = "ssc1_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_SSC1, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk tc0_clk = { + .name = "tc0_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_TC0, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk tc1_clk = { + .name = "tc1_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_TC1, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk tc2_clk = { + .name = "tc2_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_TC2, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk pwmc_clk = { + .name = "pwmc_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_PWMC, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk tsc_clk = { + .name = "tsc_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_TSC, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk dma_clk = { + .name = "dma_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_DMA, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk udphs_clk = { + .name = "udphs_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_UDPHS, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk lcdc_clk = { + .name = "lcdc_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_LCDC, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk ac97_clk = { + .name = "ac97_clk", + .pmc_mask = 1 << AT91SAM9RL_ID_AC97C, + .type = CLK_TYPE_PERIPHERAL, +}; + +static struct clk *periph_clocks[] __initdata = { + &pioA_clk, + &pioB_clk, + &pioC_clk, + &pioD_clk, + &usart0_clk, + &usart1_clk, + &usart2_clk, + &usart3_clk, + &mmc_clk, + &twi0_clk, + &twi1_clk, + &spi_clk, + &ssc0_clk, + &ssc1_clk, + &tc0_clk, + &tc1_clk, + &tc2_clk, + &pwmc_clk, + &tsc_clk, + &dma_clk, + &udphs_clk, + &lcdc_clk, + &ac97_clk, + // irq0 +}; + +/* + * 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 at91sam9rl_register_clocks(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(periph_clocks); i++) + clk_register(periph_clocks[i]); + + clk_register(&pck0); + clk_register(&pck1); +} + +/* -------------------------------------------------------------------- + * GPIO + * -------------------------------------------------------------------- */ + +static struct at91_gpio_bank at91sam9rl_gpio[] = { + { + .id = AT91SAM9RL_ID_PIOA, + .offset = AT91_PIOA, + .clock = &pioA_clk, + }, { + .id = AT91SAM9RL_ID_PIOB, + .offset = AT91_PIOB, + .clock = &pioB_clk, + }, { + .id = AT91SAM9RL_ID_PIOC, + .offset = AT91_PIOC, + .clock = &pioC_clk, + }, { + .id = AT91SAM9RL_ID_PIOD, + .offset = AT91_PIOD, + .clock = &pioD_clk, + } +}; + +static void at91sam9rl_reset(void) +{ + at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST); +} + + +/* -------------------------------------------------------------------- + * AT91SAM9RL processor initialization + * -------------------------------------------------------------------- */ + +void __init at91sam9rl_initialize(unsigned long main_clock) +{ + unsigned long cidr, sram_size; + + /* Map peripherals */ + iotable_init(at91sam9rl_io_desc, ARRAY_SIZE(at91sam9rl_io_desc)); + + cidr = at91_sys_read(AT91_DBGU_CIDR); + + switch (cidr & AT91_CIDR_SRAMSIZ) { + case AT91_CIDR_SRAMSIZ_32K: + sram_size = 2 * SZ_16K; + break; + case AT91_CIDR_SRAMSIZ_16K: + default: + sram_size = SZ_16K; + } + + at91sam9rl_sram_desc->virtual = AT91_IO_VIRT_BASE - sram_size; + at91sam9rl_sram_desc->length = sram_size; + + /* Map SRAM */ + iotable_init(at91sam9rl_sram_desc, ARRAY_SIZE(at91sam9rl_sram_desc)); + + at91_arch_reset = at91sam9rl_reset; + at91_extern_irq = (1 << AT91SAM9RL_ID_IRQ0); + + /* Init clock subsystem */ + at91_clock_init(main_clock); + + /* Register the processor-specific clocks */ + at91sam9rl_register_clocks(); + + /* Register GPIO subsystem */ + at91_gpio_init(at91sam9rl_gpio, 4); +} + +/* -------------------------------------------------------------------- + * Interrupt initialization + * -------------------------------------------------------------------- */ + +/* + * The default interrupt priority levels (0 = lowest, 7 = highest). + */ +static unsigned int at91sam9rl_default_irq_priority[NR_AIC_IRQS] __initdata = { + 7, /* Advanced Interrupt Controller */ + 7, /* System Peripherals */ + 1, /* Parallel IO Controller A */ + 1, /* Parallel IO Controller B */ + 1, /* Parallel IO Controller C */ + 1, /* Parallel IO Controller D */ + 5, /* USART 0 */ + 5, /* USART 1 */ + 5, /* USART 2 */ + 5, /* USART 3 */ + 0, /* Multimedia Card Interface */ + 6, /* Two-Wire Interface 0 */ + 6, /* Two-Wire Interface 1 */ + 5, /* Serial Peripheral Interface */ + 4, /* Serial Synchronous Controller 0 */ + 4, /* Serial Synchronous Controller 1 */ + 0, /* Timer Counter 0 */ + 0, /* Timer Counter 1 */ + 0, /* Timer Counter 2 */ + 0, + 0, /* Touch Screen Controller */ + 0, /* DMA Controller */ + 2, /* USB Device High speed port */ + 2, /* LCD Controller */ + 6, /* AC97 Controller */ + 0, + 0, + 0, + 0, + 0, + 0, + 0, /* Advanced Interrupt Controller */ +}; + +void __init at91sam9rl_init_interrupts(unsigned int priority[NR_AIC_IRQS]) +{ + if (!priority) + priority = at91sam9rl_default_irq_priority; + + /* Initialize the AIC interrupt controller */ + at91_aic_init(priority); + + /* Enable GPIO interrupts */ + at91_gpio_irq_setup(); +} diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c new file mode 100644 index 00000000000..e775aa65bb6 --- /dev/null +++ b/arch/arm/mach-at91/at91sam9rl_devices.c @@ -0,0 +1,634 @@ +/* + * Copyright (C) 2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive for + * more details. + */ + +#include +#include + +#include +#include + +#include