diff options
| author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2013-01-22 17:20:27 +0800 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2013-01-31 19:13:45 +0100 |
| commit | dc2da4fef158ef3e7aef7e268c87c75396463330 (patch) | |
| tree | 6650cb67d06e342301f98a019779a3efb90a7f76 /arch | |
| parent | 41d337174129b8f2d4516b4cdf8ad6e3df21613b (diff) | |
| download | barebox-dc2da4fef158ef3e7aef7e268c87c75396463330.tar.gz barebox-dc2da4fef158ef3e7aef7e268c87c75396463330.tar.xz | |
at91sam9261ek: add spi support
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/boards/at91sam9261ek/init.c | 42 | ||||
| -rw-r--r-- | arch/arm/configs/at91sam9261ek_defconfig | 3 | ||||
| -rw-r--r-- | arch/arm/mach-at91/Kconfig | 1 |
3 files changed, 45 insertions, 1 deletions
diff --git a/arch/arm/boards/at91sam9261ek/init.c b/arch/arm/boards/at91sam9261ek/init.c index 2597ff8987..57198d4dfe 100644 --- a/arch/arm/boards/at91sam9261ek/init.c +++ b/arch/arm/boards/at91sam9261ek/init.c @@ -37,6 +37,7 @@ #include <gpio_keys.h> #include <readkey.h> #include <led.h> +#include <spi/spi.h> static struct atmel_nand_data nand_pdata = { .ale = 22, @@ -309,6 +310,46 @@ static void ek_device_add_leds(void) static void ek_device_add_leds(void) {} #endif +/* + * SPI related devices + */ +#if defined(CONFIG_DRIVER_SPI_ATMEL) +/* + * SPI devices + */ +static struct spi_board_info ek_spi_devices[] = { + { /* DataFlash chip */ + .name = "mtd_dataflash", + .chip_select = 0, + .max_speed_hz = 15 * 1000 * 1000, + .bus_num = 0, + }, +#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD) + { /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */ + .name = "mtd_dataflash", + .chip_select = 1, + .max_speed_hz = 15 * 1000 * 1000, + .bus_num = 0, + }, +#endif +}; + +static unsigned spi0_standard_cs[] = { AT91_PIN_PA3, AT91_PIN_PA6}; +static struct at91_spi_platform_data spi_pdata = { + .chipselect = spi0_standard_cs, + .num_chipselect = ARRAY_SIZE(spi0_standard_cs), +}; + +static void ek_add_device_spi(void) +{ + spi_register_board_info(ek_spi_devices, + ARRAY_SIZE(ek_spi_devices)); + at91_add_device_spi(0, &spi_pdata); +} +#else +static void ek_add_device_spi(void) {} +#endif + static int at91sam9261ek_mem_init(void) { at91_add_device_sdram(0); @@ -326,6 +367,7 @@ static int at91sam9261ek_devices_init(void) ek_add_device_buttons(); ek_device_add_leds(); ek_add_device_lcdc(); + ek_add_device_spi(); devfs_add_partition("nand0", 0x00000, SZ_128K, DEVFS_PARTITION_FIXED, "at91bootstrap_raw"); devfs_add_partition("nand0", SZ_128K, SZ_256K, DEVFS_PARTITION_FIXED, "self_raw"); diff --git a/arch/arm/configs/at91sam9261ek_defconfig b/arch/arm/configs/at91sam9261ek_defconfig index 9c955b4cb6..ac5c6638b9 100644 --- a/arch/arm/configs/at91sam9261ek_defconfig +++ b/arch/arm/configs/at91sam9261ek_defconfig @@ -52,9 +52,10 @@ CONFIG_CMD_TFTP=y CONFIG_FS_TFTP=y CONFIG_NET_RESOLV=y CONFIG_DRIVER_NET_DM9K=y -# CONFIG_SPI is not set +CONFIG_DRIVER_SPI_ATMEL=y CONFIG_MTD=y # CONFIG_MTD_OOB_DEVICE is not set +CONFIG_MTD_DATAFLASH=y CONFIG_NAND=y # CONFIG_NAND_ECC_HW is not set # CONFIG_NAND_ECC_HW_SYNDROME is not set diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig index d7939c3518..86115aa2b6 100644 --- a/arch/arm/mach-at91/Kconfig +++ b/arch/arm/mach-at91/Kconfig @@ -289,6 +289,7 @@ choice config MACH_AT91SAM9261EK bool "Atmel AT91SAM9261-EK Evaluation Kit" select HAS_DM9000 + select HAVE_AT91_DATAFLASH_CARD select HAVE_NAND_ATMEL_BUSWIDTH_16 help Select this if you are using Atmel's AT91SAM9261-EK Evaluation Kit. |