diff options
Diffstat (limited to 'arch/arm/mach-at91')
| -rw-r--r-- | arch/arm/mach-at91/board-dt.c | 123 | ||||
| -rw-r--r-- | arch/arm/mach-at91/board-rsi-ews.c | 233 | ||||
| -rw-r--r-- | arch/arm/mach-at91/board-usb-a926x.c | 378 | ||||
| -rw-r--r-- | arch/arm/mach-at91/setup.c | 300 | ||||
| -rw-r--r-- | arch/arm/mach-at91/soc.h | 59 |
5 files changed, 1093 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/board-dt.c b/arch/arm/mach-at91/board-dt.c new file mode 100644 index 0000000..0b7d327 --- /dev/null +++ b/arch/arm/mach-at91/board-dt.c @@ -0,0 +1,123 @@ +/* + * Setup code for AT91SAM Evaluation Kits with Device Tree support + * + * Covers: * AT91SAM9G45-EKES board + * * AT91SAM9M10-EKES board + * * AT91SAM9M10G45-EK board + * + * Copyright (C) 2011 Atmel, + * 2011 Nicolas Ferre <nicolas.ferre@atmel.com> + * + * Licensed under GPLv2 or later. + */ + +#include <linux/types.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/gpio.h> +#include <linux/irqdomain.h> +#include <linux/of_irq.h> +#include <linux/of_platform.h> + +#include <mach/hardware.h> +#include <mach/board.h> +#include <mach/system_rev.h> +#include <mach/at91sam9_smc.h> + +#include <asm/setup.h> +#include <asm/irq.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include "sam9_smc.h" +#include "generic.h" + + +static void __init ek_init_early(void) +{ + /* Initialize processor: 12.000 MHz crystal */ + at91_initialize(12000000); + + /* DGBU on ttyS0. (Rx & Tx only) */ + at91_register_uart(0, 0, 0); + + /* set serial console to ttyS0 (ie, DBGU) */ + at91_set_serial_console(0); +} + +/* det_pin is not connected */ +static struct atmel_nand_data __initdata ek_nand_data = { + .ale = 21, + .cle = 22, + .rdy_pin = AT91_PIN_PC8, + .enable_pin = AT91_PIN_PC14, +}; + +static struct sam9_smc_config __initdata ek_nand_smc_config = { + .ncs_read_setup = 0, + .nrd_setup = 2, + .ncs_write_setup = 0, + .nwe_setup = 2, + + .ncs_read_pulse = 4, + .nrd_pulse = 4, + .ncs_write_pulse = 4, + .nwe_pulse = 4, + + .read_cycle = 7, + .write_cycle = 7, + + .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE, + .tdf_cycles = 3, +}; + +static void __init ek_add_device_nand(void) +{ + ek_nand_data.bus_width_16 = board_have_nand_16bit(); + /* setup bus-width (8 or 16) */ + if (ek_nand_data.bus_width_16) + ek_nand_smc_config.mode |= AT91_SMC_DBW_16; + else + ek_nand_smc_config.mode |= AT91_SMC_DBW_8; + + /* configure chip-select 3 (NAND) */ + sam9_smc_configure(3, &ek_nand_smc_config); + + at91_add_device_nand(&ek_nand_data); +} + +static const struct of_device_id aic_of_match[] __initconst = { + { .compatible = "atmel,at91rm9200-aic", }, + {}, +}; + +static void __init at91_dt_init_irq(void) +{ + irq_domain_generate_simple(aic_of_match, 0xfffff000, 0); + at91_init_irq_default(); +} + +static void __init at91_dt_device_init(void) +{ + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); + + /* NAND */ + ek_add_device_nand(); +} + +static const char *at91_dt_board_compat[] __initdata = { + "atmel,at91sam9m10g45ek", + "calao,usb-a9g20", + NULL +}; + +DT_MACHINE_START(at91sam_dt, "Atmel AT91SAM (Device Tree)") + /* Maintainer: Atmel */ + .timer = &at91sam926x_timer, + .map_io = at91_map_io, + .init_early = ek_init_early, + .init_irq = at91_dt_init_irq, + .init_machine = at91_dt_device_init, + .dt_compat = at91_dt_board_compat, +MACHINE_END diff --git a/arch/arm/mach-at91/board-rsi-ews.c b/arch/arm/mach-at91/board-rsi-ews.c new file mode 100644 index 0000000..e927df0 --- /dev/null +++ b/arch/arm/mach-at91/board-rsi-ews.c @@ -0,0 +1,233 @@ +/* + * board-rsi-ews.c + * + * Copyright (C) + * 2005 SAN People, + * 2008-2011 R-S-I Elektrotechnik GmbH & Co. KG + * + * Licensed under GPLv2 or later. + */ + +#include <linux/types.h> +#include <linux/init.h> +#include <linux/mm.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/spi/spi.h> +#include <linux/mtd/physmap.h> + +#include <asm/setup.h> +#include <asm/mach-types.h> +#include <asm/irq.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include <mach/hardware.h> +#include <mach/board.h> + +#include <linux/gpio.h> + +#include "generic.h" + +static void __init rsi_ews_init_early(void) +{ + /* Initialize processor: 18.432 MHz crystal */ + at91_initialize(18432000); + + /* Setup the LEDs */ + at91_init_leds(AT91_PIN_PB6, AT91_PIN_PB9); + + /* DBGU on ttyS0. (Rx & Tx only) */ + /* This one is for debugging */ + at91_register_uart(0, 0, 0); + + /* USART1 on ttyS2. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */ + /* Dialin/-out modem interface */ + at91_register_uart(AT91RM9200_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS + | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD + | ATMEL_UART_RI); + + /* USART3 on ttyS4. (Rx, Tx, RTS) */ + /* RS485 communication */ + at91_register_uart(AT91RM9200_ID_US3, 4, ATMEL_UART_RTS); + + /* set serial console to ttyS0 (ie, DBGU) */ + at91_set_serial_console(0); +} + +/* + * Ethernet + */ +static struct at91_eth_data rsi_ews_eth_data __initdata = { + .phy_irq_pin = AT91_PIN_PC4, + .is_rmii = 1, +}; + +/* + * USB Host + */ +static struct at91_usbh_data rsi_ews_usbh_data __initdata = { + .ports = 1, +}; + +/* + * SD/MC + */ +static struct at91_mmc_data rsi_ews_mmc_data __initdata = { + .slot_b = 0, + .wire4 = 1, + .det_pin = AT91_PIN_PB27, + .wp_pin = AT91_PIN_PB29, +}; + +/* + * I2C + */ +static struct i2c_board_info rsi_ews_i2c_devices[] __initdata = { + { + I2C_BOARD_INFO("ds1337", 0x68), + }, + { + I2C_BOARD_INFO("24c01", 0x50), + } +}; + +/* + * LEDs + */ +static struct gpio_led rsi_ews_leds[] = { + { + .name = "led0", + .gpio = AT91_PIN_PB6, + .active_low = 0, + }, + { + .name = "led1", + .gpio = AT91_PIN_PB7, + .active_low = 0, + }, + { + .name = "led2", + .gpio = AT91_PIN_PB8, + .active_low = 0, + }, + { + .name = "led3", + .gpio = AT91_PIN_PB9, + .active_low = 0, + }, +}; + +/* + * DataFlash + */ +static struct spi_board_info rsi_ews_spi_devices[] = { + { /* DataFlash chip 1*/ + .modalias = "mtd_dataflash", + .chip_select = 0, + .max_speed_hz = 5 * 1000 * 1000, + }, + { /* DataFlash chip 2*/ + .modalias = "mtd_dataflash", + .chip_select = 1, + .max_speed_hz = 5 * 1000 * 1000, + }, +}; + +/* + * NOR flash + */ +static struct mtd_partition rsiews_nor_partitions[] = { + { + .name = "boot", + .offset = 0, + .size = 3 * SZ_128K, + .mask_flags = MTD_WRITEABLE + }, + { + .name = "kernel", + .offset = MTDPART_OFS_NXTBLK, + .size = SZ_2M - (3 * SZ_128K) + }, + { + .name = "root", + .offset = MTDPART_OFS_NXTBLK, + .size = SZ_8M + }, + { + .name = "kernelupd", + .offset = MTDPART_OFS_NXTBLK, + .size = 3 * SZ_512K, + .mask_flags = MTD_WRITEABLE + }, + { + .name = "rootupd", + .offset = MTDPART_OFS_NXTBLK, + .size = 9 * SZ_512K, + .mask_flags = MTD_WRITEABLE + }, +}; + +static struct physmap_flash_data rsiews_nor_data = { + .width = 2, + .parts = rsiews_nor_partitions, + .nr_parts = ARRAY_SIZE(rsiews_nor_partitions), +}; + +#define NOR_BASE AT91_CHIPSELECT_0 +#define NOR_SIZE SZ_16M + +static struct resource nor_flash_resources[] = { + { + .start = NOR_BASE, + .end = NOR_BASE + NOR_SIZE - 1, + .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device rsiews_nor_flash = { + .name = "physmap-flash", + .id = 0, + .dev = { + .platform_data = &rsiews_nor_data, + }, + .resource = nor_flash_resources, + .num_resources = ARRAY_SIZE(nor_flash_resources), +}; + +/* + * Init Func + */ +static void __init rsi_ews_board_init(void) +{ + /* Serial */ + at91_add_device_serial(); + at91_set_gpio_output(AT91_PIN_PA21, 0); + /* Ethernet */ + at91_add_device_eth(&rsi_ews_eth_data); + /* USB Host */ + at91_add_device_usbh(&rsi_ews_usbh_data); + /* I2C */ + at91_add_device_i2c(rsi_ews_i2c_devices, + ARRAY_SIZE(rsi_ews_i2c_devices)); + /* SPI */ + at91_add_device_spi(rsi_ews_spi_devices, + ARRAY_SIZE(rsi_ews_spi_devices)); + /* MMC */ + at91_add_device_mmc(0, &rsi_ews_mmc_data); + /* NOR Flash */ + platform_device_register(&rsiews_nor_flash); + /* LEDs */ + at91_gpio_leds(rsi_ews_leds, ARRAY_SIZE(rsi_ews_leds)); +} + +MACHINE_START(RSI_EWS, "RSI EWS") + /* Maintainer: Josef Holzmayr <holzmayr@rsi-elektrotechnik.de> */ + .timer = &at91rm9200_timer, + .map_io = at91_map_io, + .init_early = rsi_ews_init_early, + .init_irq = at91_init_irq_default, + .init_machine = rsi_ews_board_init, +MACHINE_END diff --git a/arch/arm/mach-at91/board-usb-a926x.c b/arch/arm/mach-at91/board-usb-a926x.c new file mode 100644 index 0000000..0a20bab --- /dev/null +++ b/arch/arm/mach-at91/board-usb-a926x.c @@ -0,0 +1,378 @@ +/* + * linux/arch/arm/mach-at91/board-usb-a926x.c + * + * Copyright (C) 2005 SAN People + * Copyright (C) 2007 Atmel Corporation. + * Copyright (C) 2007 Calao-systems + * Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/types.h> +#include <linux/init.h> +#include <linux/mm.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/spi/spi.h> +#include <linux/gpio_keys.h> +#include <linux/gpio.h> +#include <linux/input.h> +#include <linux/spi/mmc_spi.h> + +#include <asm/setup.h> +#include <asm/mach-types.h> +#include <asm/irq.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include <mach/hardware.h> +#include <mach/board.h> +#include <mach/at91sam9_smc.h> +#include <mach/at91_shdwc.h> + +#include "sam9_smc.h" +#include "generic.h" + + +static void __init ek_init_early(void) +{ + /* Initialize processor: 12.00 MHz crystal */ + at91_initialize(12000000); + + /* DBGU on ttyS0. (Rx & Tx only) */ + at91_register_uart(0, 0, 0); + + /* set serial console to ttyS0 (ie, DBGU) */ + at91_set_serial_console(0); +} + +/* + * USB Host port + */ +static struct at91_usbh_data __initdata ek_usbh_data = { + .ports = 2, +}; + +/* + * USB Device port + */ +static struct at91_udc_data __initdata ek_udc_data = { + .vbus_pin = AT91_PIN_PB11, + .pullup_pin = 0, /* pull-up driven by UDC */ +}; + +static void __init ek_add_device_udc(void) +{ + if (machine_is_usb_a9260() || machine_is_usb_a9g20()) + ek_udc_data.vbus_pin = AT91_PIN_PC5; + + at91_add_device_udc(&ek_udc_data); +} + +#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE) +#define MMC_SPI_CARD_DETECT_INT AT91_PIN_PC4 +static int at91_mmc_spi_init(struct device *dev, + irqreturn_t (*detect_int)(int, void *), void *data) +{ + /* Configure Interrupt pin as input, no pull-up */ + at91_set_gpio_input(MMC_SPI_CARD_DETECT_INT, 0); + return request_irq(gpio_to_irq(MMC_SPI_CARD_DETECT_INT), detect_int, + IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, + "mmc-spi-detect", data); +} + +static void at91_mmc_spi_exit(struct device *dev, void *data) +{ + free_irq(gpio_to_irq(MMC_SPI_CARD_DETECT_INT), data); +} + +static struct mmc_spi_platform_data at91_mmc_spi_pdata = { + .init = at91_mmc_spi_init, + .exit = at91_mmc_spi_exit, + .detect_delay = 100, /* msecs */ +}; +#endif + +/* + * SPI devices. + */ +static struct spi_board_info usb_a9263_spi_devices[] = { +#if !defined(CONFIG_MMC_AT91) + { /* DataFlash chip */ + .modalias = "mtd_dataflash", + .chip_select = 0, + .max_speed_hz = 15 * 1000 * 1000, + .bus_num = 0, + } +#endif +}; + +static struct spi_board_info usb_a9g20_spi_devices[] = { +#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE) + { + .modalias = "mmc_spi", + .max_speed_hz = 20000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 0, + .platform_data = &at91_mmc_spi_pdata, + .mode = SPI_MODE_3, + }, +#endif +}; + +static void __init ek_add_device_spi(void) +{ + if (machine_is_usb_a9263()) + at91_add_device_spi(usb_a9263_spi_devices, ARRAY_SIZE(usb_a9263_spi_devices)); + else if (machine_is_usb_a9g20()) + at91_add_device_spi(usb_a9g20_spi_devices, ARRAY_SIZE(usb_a9g20_spi_devices)); +} + +/* + * MACB Ethernet device + */ +static struct at91_eth_data __initdata ek_macb_data = { + .phy_irq_pin = AT91_PIN_PE31, + .is_rmii = 1, +}; + +static void __init ek_add_device_eth(void) +{ + if (machine_is_usb_a9260() || machine_is_usb_a9g20()) + ek_macb_data.phy_irq_pin = AT91_PIN_PA31; + + at91_add_device_eth(&ek_macb_data); +} + +/* + * NAND flash + */ +static struct mtd_partition __initdata ek_nand_partition[] = { + { + .name = "barebox", + .offset = 0, + .size = 3 * SZ_128K, + }, { + .name = "bareboxenv", + .offset = MTDPART_OFS_NXTBLK, + .size = SZ_128K, + }, { + .name = "bareboxenv2", + .offset = MTDPART_OFS_NXTBLK, + .size = SZ_128K, + }, { + .name = "kernel", + .offset = MTDPART_OFS_NXTBLK, + .size = 4 * SZ_1M, + }, { + .name = "rootfs", + .offset = MTDPART_OFS_NXTBLK, + .size = 120 * SZ_1M, + }, { + .name = "data", + .offset = MTDPART_OFS_NXTBLK, + .size = MTDPART_SIZ_FULL, + } +}; + +static struct atmel_nand_data __initdata ek_nand_data = { + .ale = 21, + .cle = 22, +// .det_pin = ... not connected + .rdy_pin = AT91_PIN_PA22, + .enable_pin = AT91_PIN_PD15, + .parts = ek_nand_partition, + .num_parts = ARRAY_SIZE(ek_nand_partition), +}; + +static struct sam9_smc_config __initdata usb_a9260_nand_smc_config = { + .ncs_read_setup = 0, + .nrd_setup = 1, + .ncs_write_setup = 0, + .nwe_setup = 1, + + .ncs_read_pulse = 3, + .nrd_pulse = 3, + .ncs_write_pulse = 3, + .nwe_pulse = 3, + + .read_cycle = 5, + .write_cycle = 5, + + .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8, + .tdf_cycles = 2, +}; + +static struct sam9_smc_config __initdata usb_a9g20_nand_smc_config = { + .ncs_read_setup = 0, + .nrd_setup = 2, + .ncs_write_setup = 0, + .nwe_setup = 2, + + .ncs_read_pulse = 4, + .nrd_pulse = 4, + .ncs_write_pulse = 4, + .nwe_pulse = 4, + + .read_cycle = 7, + .write_cycle = 7, + + .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8, + .tdf_cycles = 3, +}; + +static void __init ek_add_device_nand(void) +{ + if (machine_is_usb_a9260() || machine_is_usb_a9g20()) { + ek_nand_data.rdy_pin = AT91_PIN_PC13; + ek_nand_data.enable_pin = AT91_PIN_PC14; + } + + /* configure chip-select 3 (NAND) */ + if (machine_is_usb_a9g20()) + sam9_smc_configure(3, &usb_a9g20_nand_smc_config); + else + sam9_smc_configure(3, &usb_a9260_nand_smc_config); + + at91_add_device_nand(&ek_nand_data); +} + + +/* + * GPIO Buttons + */ +#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) +static struct gpio_keys_button ek_buttons[] = { + { /* USER PUSH BUTTON */ + .code = KEY_ENTER, + .gpio = AT91_PIN_PB10, + .active_low = 1, + .desc = "user_pb", + .wakeup = 1, + } +}; + +static struct gpio_keys_platform_data ek_button_data = { + .buttons = ek_buttons, + .nbuttons = ARRAY_SIZE(ek_buttons), +}; + +static struct platform_device ek_button_device = { + .name = "gpio-keys", + .id = -1, + .num_resources = 0, + .dev = { + .platform_data = &ek_button_data, + } +}; + +static void __init ek_add_device_buttons(void) +{ + at91_set_GPIO_periph(AT91_PIN_PB10, 1); /* user push button, pull up enabled */ + at91_set_deglitch(AT91_PIN_PB10, 1); + + platform_device_register(&ek_button_device); +} +#else +static void __init ek_add_device_buttons(void) {} +#endif + +/* + * LEDs + */ +static struct gpio_led ek_leds[] = { + { /* user_led (green) */ + .name = "user_led", + .gpio = AT91_PIN_PB21, + .active_low = 1, + .default_trigger = "heartbeat", + } +}; + +static struct i2c_board_info __initdata ek_i2c_devices[] = { + { + I2C_BOARD_INFO("rv3029c2", 0x56), + }, +}; + +static void __init ek_add_device_leds(void) +{ + if (machine_is_usb_a9260() || machine_is_usb_a9g20()) + ek_leds[0].active_low = 0; + + at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds)); +} + +static void __init ek_board_init(void) +{ + /* Serial */ + at91_add_device_serial(); + /* USB Host */ + at91_add_device_usbh(&ek_usbh_data); + /* USB Device */ + ek_add_device_udc(); + /* SPI */ + ek_add_device_spi(); + /* Ethernet */ + ek_add_device_eth(); + /* NAND */ + ek_add_device_nand(); + /* Push Buttons */ + ek_add_device_buttons(); + /* LEDs */ + ek_add_device_leds(); + + if (machine_is_usb_a9g20()) { + /* I2C */ + at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices)); + } else { + /* I2C */ + at91_add_device_i2c(NULL, 0); + /* shutdown controller, wakeup button (5 msec low) */ + at91_sys_write(AT91_SHDW_MR, AT91_SHDW_CPTWK0_(10) + | AT91_SHDW_WKMODE0_LOW + | AT91_SHDW_RTTWKEN); + } +} + +MACHINE_START(USB_A9263, "CALAO USB_A9263") + /* Maintainer: calao-systems */ + .timer = &at91sam926x_timer, + .map_io = at91_map_io, + .init_early = ek_init_early, + .init_irq = at91_init_irq_default, + .init_machine = ek_board_init, +MACHINE_END + +MACHINE_START(USB_A9260, "CALAO USB_A9260") + /* Maintainer: calao-systems */ + .timer = &at91sam926x_timer, + .map_io = at91_map_io, + .init_early = ek_init_early, + .init_irq = at91_init_irq_default, + .init_machine = ek_board_init, +MACHINE_END + +MACHINE_START(USB_A9G20, "CALAO USB_A92G0") + /* Maintainer: Jean-Christophe PLAGNIOL-VILLARD */ + .timer = &at91sam926x_timer, + .map_io = at91_map_io, + .init_early = ek_init_early, + .init_irq = at91_init_irq_default, + .init_machine = ek_board_init, +MACHINE_END diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c new file mode 100644 index 0000000..0d264bf --- /dev/null +++ b/arch/arm/mach-at91/setup.c @@ -0,0 +1,300 @@ +/* + * Copyright (C) 2007 Atmel Corporation. + * Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> + * + * Under GPLv2 + */ + +#include <linux/module.h> +#include <linux/io.h> +#include <linux/mm.h> + +#include <asm/mach/map.h> + +#include <mach/hardware.h> +#include <mach/cpu.h> +#include <mach/at91_dbgu.h> +#include <mach/at91_pmc.h> + +#include "soc.h" +#include "generic.h" + +struct at91_init_soc __initdata at91_boot_soc; + +struct at91_socinfo at91_soc_initdata; +EXPORT_SYMBOL(at91_soc_initdata); + +void __init at91rm9200_set_type(int type) +{ + if (type == ARCH_REVISON_9200_PQFP) + at91_soc_initdata.subtype = AT91_SOC_RM9200_PQFP; + else + at91_soc_initdata.subtype = AT91_SOC_RM9200_BGA; + + pr_info("AT91: filled in soc subtype: %s\n", + at91_get_soc_subtype(&at91_soc_initdata)); +} + +void __init at91_init_irq_default(void) +{ + at91_init_interrupts(at91_boot_soc.default_irq_priority); +} + +void __init at91_init_interrupts(unsigned int *priority) +{ + /* Initialize the AIC interrupt controller */ + at91_aic_init(priority); + + /* Enable GPIO interrupts */ + at91_gpio_irq_setup(); +} + +static struct map_desc sram_desc[2] __initdata; + +void __init at91_init_sram(int bank, unsigned long base, unsigned int length) +{ + struct map_desc *desc = &sram_desc[bank]; + + desc->virtual = AT91_IO_VIRT_BASE - length; + if (bank > 0) + desc->virtual -= sram_desc[bank - 1].length; + + desc->pfn = __phys_to_pfn(base); + desc->length = length; + desc->type = MT_DEVICE; + + pr_info("AT91: sram at 0x%lx of 0x%x mapped at 0x%lx\n", + base, length, desc->virtual); + + iotable_init(desc, 1); +} + +static struct map_desc at91_io_desc __initdata = { + .virtual = AT91_VA_BASE_SYS, + .pfn = __phys_to_pfn(AT91_BASE_SYS), + .length = SZ_16K, + .type = MT_DEVICE, +}; + +void __iomem *at91_ioremap(unsigned long p, size_t size, unsigned int type) +{ + if (p >= AT91_BASE_SYS && p <= (AT91_BASE_SYS + SZ_16K - 1)) + return (void __iomem *)AT91_IO_P2V(p); + + return __arm_ioremap_caller(p, size, type, __builtin_return_address(0)); +} +EXPORT_SYMBOL(at91_ioremap); + +void at91_iounmap(volatile void __iomem *addr) +{ + unsigned long virt = (unsigned long)addr; + + if (virt >= VMALLOC_START && virt < VMALLOC_END) + __iounmap(addr); +} +EXPORT_SYMBOL(at91_iounmap); + +#define AT91_DBGU0 0xfffff200 +#define AT91_DBGU1 0xffffee00 + +static void __init soc_detect(u32 dbgu_base) +{ + u32 cidr, socid; + + cidr = __raw_readl(AT91_IO_P2V(dbgu_base) + AT91_DBGU_CIDR); + socid = cidr & ~AT91_CIDR_VERSION; + + switch (socid) { + case ARCH_ID_AT91CAP9: { +#ifdef CONFIG_AT91_PMC_UNIT + u32 pmc_ver = at91_sys_read(AT91_PMC_VER); + + if (pmc_ver == ARCH_REVISION_CAP9_B) + at91_soc_initdata.subtype = AT91_SOC_CAP9_REV_B; + else if (pmc_ver == ARCH_REVISION_CAP9_C) + at91_soc_initdata.subtype = AT91_SOC_CAP9_REV_C; +#endif + at91_soc_initdata.type = AT91_SOC_CAP9; + at91_boot_soc = at91cap9_soc; + break; + } + + case ARCH_ID_AT91RM9200: + at91_soc_initdata.type = AT91_SOC_RM9200; + at91_boot_soc = at91rm9200_soc; + break; + + case ARCH_ID_AT91SAM9260: + at91_soc_initdata.type = AT91_SOC_SAM9260; + at91_boot_soc = at91sam9260_soc; + break; + + case ARCH_ID_AT91SAM9261: + at91_soc_initdata.type = AT91_SOC_SAM9261; + at91_boot_soc = at91sam9261_soc; + break; + + case ARCH_ID_AT91SAM9263: + at91_soc_initdata.type = AT91_SOC_SAM9263; + at91_boot_soc = at91sam9263_soc; + break; + + case ARCH_ID_AT91SAM9G20: + at91_soc_initdata.type = AT91_SOC_SAM9G20; + at91_boot_soc = at91sam9260_soc; + break; + + case ARCH_ID_AT91SAM9G45: + at91_soc_initdata.type = AT91_SOC_SAM9G45; + if (cidr == ARCH_ID_AT91SAM9G45ES) + at91_soc_initdata.subtype = AT91_SOC_SAM9G45ES; + at91_boot_soc = at91sam9g45_soc; + break; + + case ARCH_ID_AT91SAM9RL64: + at91_soc_initdata.type = AT91_SOC_SAM9RL; + at91_boot_soc = at91sam9rl_soc; + break; + + case ARCH_ID_AT91SAM9X5: + at91_soc_initdata.type = AT91_SOC_SAM9X5; + at91_boot_soc = at91sam9x5_soc; + break; + } + + /* at91sam9g10 */ + if ((socid & ~AT91_CIDR_EXT) == ARCH_ID_AT91SAM9G10) { + at91_soc_initdata.type = AT91_SOC_SAM9G10; + at91_boot_soc = at91sam9261_soc; + } + /* at91sam9xe */ + else if ((cidr & AT91_CIDR_ARCH) == ARCH_FAMILY_AT91SAM9XE) { + at91_soc_initdata.type = AT91_SOC_SAM9260; + at91_soc_initdata.subtype = AT91_SOC_SAM9XE; + at91_boot_soc = at91sam9260_soc; + } + + if (!at91_soc_is_detected()) + return; + + at91_soc_initdata.cidr = cidr; + + /* sub version of soc */ + at91_soc_initdata.exid = __raw_readl(AT91_IO_P2V(dbgu_base) + AT91_DBGU_EXID); + + if (at91_soc_initdata.type == AT91_SOC_SAM9G45) { + switch (at91_soc_initdata.exid) { + case ARCH_EXID_AT91SAM9M10: + at91_soc_initdata.subtype = AT91_SOC_SAM9M10; + break; + case ARCH_EXID_AT91SAM9G46: + at91_soc_initdata.subtype = AT91_SOC_SAM9G46; + break; + case ARCH_EXID_AT91SAM9M11: + at91_soc_initdata.subtype = AT91_SOC_SAM9M11; + break; + } + } + + if (at91_soc_initdata.type == AT91_SOC_SAM9X5) { + switch (at91_soc_initdata.exid) { + case ARCH_EXID_AT91SAM9G15: + at91_soc_initdata.subtype = AT91_SOC_SAM9G15; + break; + case ARCH_EXID_AT91SAM9G35: + at91_soc_initdata.subtype = AT91_SOC_SAM9G35; + break; + case ARCH_EXID_AT91SAM9X35: + at91_soc_initdata.subtype = AT91_SOC_SAM9X35; + break; + case ARCH_EXID_AT91SAM9G25: + at91_soc_initdata.subtype = AT91_SOC_SAM9G25; + break; + case ARCH_EXID_AT91SAM9X25: + at91_soc_initdata.subtype = AT91_SOC_SAM9X25; + break; + } + } +} + +static const char *soc_name[] = { + [AT91_SOC_RM9200] = "at91rm9200", + [AT91_SOC_CAP9] = "at91cap9", + [AT91_SOC_SAM9260] = "at91sam9260", + [AT91_SOC_SAM9261] = "at91sam9261", + [AT91_SOC_SAM9263] = "at91sam9263", + [AT91_SOC_SAM9G10] = "at91sam9g10", + [AT91_SOC_SAM9G20] = "at91sam9g20", + [AT91_SOC_SAM9G45] = "at91sam9g45", + [AT91_SOC_SAM9RL] = "at91sam9rl", + [AT91_SOC_SAM9X5] = "at91sam9x5", + [AT91_SOC_NONE] = "Unknown" +}; + +const char *at91_get_soc_type(struct at91_socinfo *c) +{ + return soc_name[c->type]; +} +EXPORT_SYMBOL(at91_get_soc_type); + +static const char *soc_subtype_name[] = { + [AT91_SOC_RM9200_BGA] = "at91rm9200 BGA", + [AT91_SOC_RM9200_PQFP] = "at91rm9200 PQFP", + [AT91_SOC_CAP9_REV_B] = "at91cap9 revB", + [AT91_SOC_CAP9_REV_C] = "at91cap9 revC", + [AT91_SOC_SAM9XE] = "at91sam9xe", + [AT91_SOC_SAM9G45ES] = "at91sam9g45es", + [AT91_SOC_SAM9M10] = "at91sam9m10", + [AT91_SOC_SAM9G46] = "at91sam9g46", + [AT91_SOC_SAM9M11] = "at91sam9m11", + [AT91_SOC_SAM9G15] = "at91sam9g15", + [AT91_SOC_SAM9G35] = "at91sam9g35", + [AT91_SOC_SAM9X35] = "at91sam9x35", + [AT91_SOC_SAM9G25] = "at91sam9g25", + [AT91_SOC_SAM9X25] = "at91sam9x25", + [AT91_SOC_SUBTYPE_NONE] = "Unknown" +}; + +const char *at91_get_soc_subtype(struct at91_socinfo *c) +{ + return soc_subtype_name[c->subtype]; +} +EXPORT_SYMBOL(at91_get_soc_subtype); + +void __init at91_map_io(void) +{ + /* Map peripherals */ + iotable_init(&at91_io_desc, 1); + + at91_soc_initdata.type = AT91_SOC_NONE; + at91_soc_initdata.subtype = AT91_SOC_SUBTYPE_NONE; + + soc_detect(AT91_DBGU0); + if (!at91_soc_is_detected()) + soc_detect(AT91_DBGU1); + + if (!at91_soc_is_detected()) + panic("AT91: Impossible to detect the SOC type"); + + pr_info("AT91: Detected soc type: %s\n", + at91_get_soc_type(&at91_soc_initdata)); + pr_info("AT91: Detected soc subtype: %s\n", + at91_get_soc_subtype(&at91_soc_initdata)); + + if (!at91_soc_is_enabled()) + panic("AT91: Soc not enabled"); + + if (at91_boot_soc.map_io) + at91_boot_soc.map_io(); +} + +void __init at91_initialize(unsigned long main_clock) +{ + /* Init clock subsystem */ + at91_clock_init(main_clock); + + /* Register the processor-specific clocks */ + at91_boot_soc.register_clocks(); + + at91_boot_soc.init(); +} diff --git a/arch/arm/mach-at91/soc.h b/arch/arm/mach-at91/soc.h new file mode 100644 index 0000000..21ed881 --- /dev/null +++ b/arch/arm/mach-at91/soc.h @@ -0,0 +1,59 @@ +/* + * Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> + * + * Under GPLv2 + */ + +struct at91_init_soc { + unsigned int *default_irq_priority; + void (*map_io)(void); + void (*register_clocks)(void); + void (*init)(void); +}; + +extern struct at91_init_soc at91_boot_soc; +extern struct at91_init_soc at91cap9_soc; +extern struct at91_init_soc at91rm9200_soc; +extern struct at91_init_soc at91sam9260_soc; +extern struct at91_init_soc at91sam9261_soc; +extern struct at91_init_soc at91sam9263_soc; +extern struct at91_init_soc at91sam9g45_soc; +extern struct at91_init_soc at91sam9rl_soc; +extern struct at91_init_soc at91sam9x5_soc; + +static inline int at91_soc_is_enabled(void) +{ + return at91_boot_soc.init != NULL; +} + +#if !defined(CONFIG_ARCH_AT91CAP9) +#define at91cap9_soc at91_boot_soc +#endif + +#if !defined(CONFIG_ARCH_AT91RM9200) +#define at91rm9200_soc at91_boot_soc +#endif + +#if !(defined(CONFIG_ARCH_AT91SAM9260) || defined(CONFIG_ARCH_AT91SAM9G20)) +#define at91sam9260_soc at91_boot_soc +#endif + +#if !(defined(CONFIG_ARCH_AT91SAM9261) || defined(CONFIG_ARCH_AT91SAM9G10)) +#define at91sam9261_soc at91_boot_soc +#endif + +#if !defined(CONFIG_ARCH_AT91SAM9263) +#define at91sam9263_soc at91_boot_soc +#endif + +#if !defined(CONFIG_ARCH_AT91SAM9G45) +#define at91sam9g45_soc at91_boot_soc +#endif + +#if !defined(CONFIG_ARCH_AT91SAM9RL) +#define at91sam9rl_soc at91_boot_soc +#endif + +#if !defined(CONFIG_ARCH_AT91SAM9X5) +#define at91sam9x5_soc at91_boot_soc +#endif |