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author | Michael Williamson <[michael.williamson@criticallink.com]> | 2011-02-24 10:22:47 +0530 |
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committer | Kevin Hilman <khilman@ti.com> | 2011-03-11 10:48:29 -0800 |
commit | dd561c6a77edd5a106484901d8a5d3d5eb4a54b5 (patch) | |
tree | ed27674a16c6a6c9a098473ebf12b57ff75d54eb /arch/arm | |
parent | davinci: da8xx: add spi resources and registration routine (diff) | |
download | linux-dev-dd561c6a77edd5a106484901d8a5d3d5eb4a54b5.tar.xz linux-dev-dd561c6a77edd5a106484901d8a5d3d5eb4a54b5.zip |
davinci: add spi devices support for MityDSP-L138/MityARM-1808 platform
This patch adds support for accessing the on board SPI NOR FLASH
device for MityDSP-L138 and MityARM-1808 SoMs.
Signed-off-by: Michael Williamson <michael.williamson@criticallink.com>
Tested-by: Michael Williamson <michael.williamson@criticallink.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Diffstat (limited to 'arch/arm')
-rw-r--r-- | arch/arm/mach-davinci/board-mityomapl138.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/board-mityomapl138.c b/arch/arm/mach-davinci/board-mityomapl138.c index 0ea59327dc28..2aa79c54f98e 100644 --- a/arch/arm/mach-davinci/board-mityomapl138.c +++ b/arch/arm/mach-davinci/board-mityomapl138.c @@ -17,6 +17,8 @@ #include <linux/i2c.h> #include <linux/i2c/at24.h> #include <linux/etherdevice.h> +#include <linux/spi/spi.h> +#include <linux/spi/flash.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -25,6 +27,7 @@ #include <mach/da8xx.h> #include <mach/nand.h> #include <mach/mux.h> +#include <mach/spi.h> #define MITYOMAPL138_PHY_ID "0:03" @@ -294,6 +297,82 @@ static int __init pmic_tps65023_init(void) } /* + * SPI Devices: + * SPI1_CS0: 8M Flash ST-M25P64-VME6G + */ +static struct mtd_partition spi_flash_partitions[] = { + [0] = { + .name = "ubl", + .offset = 0, + .size = SZ_64K, + .mask_flags = MTD_WRITEABLE, + }, + [1] = { + .name = "u-boot", + .offset = MTDPART_OFS_APPEND, + .size = SZ_512K, + .mask_flags = MTD_WRITEABLE, + }, + [2] = { + .name = "u-boot-env", + .offset = MTDPART_OFS_APPEND, + .size = SZ_64K, + .mask_flags = MTD_WRITEABLE, + }, + [3] = { + .name = "periph-config", + .offset = MTDPART_OFS_APPEND, + .size = SZ_64K, + .mask_flags = MTD_WRITEABLE, + }, + [4] = { + .name = "reserved", + .offset = MTDPART_OFS_APPEND, + .size = SZ_256K + SZ_64K, + }, + [5] = { + .name = "kernel", + .offset = MTDPART_OFS_APPEND, + .size = SZ_2M + SZ_1M, + }, + [6] = { + .name = "fpga", + .offset = MTDPART_OFS_APPEND, + .size = SZ_2M, + }, + [7] = { + .name = "spare", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, + }, +}; + +static struct flash_platform_data mityomapl138_spi_flash_data = { + .name = "m25p80", + .parts = spi_flash_partitions, + .nr_parts = ARRAY_SIZE(spi_flash_partitions), + .type = "m24p64", +}; + +static struct davinci_spi_config spi_eprom_config = { + .io_type = SPI_IO_TYPE_DMA, + .c2tdelay = 8, + .t2cdelay = 8, +}; + +static struct spi_board_info mityomapl138_spi_flash_info[] = { + { + .modalias = "m25p80", + .platform_data = &mityomapl138_spi_flash_data, + .controller_data = &spi_eprom_config, + .mode = SPI_MODE_0, + .max_speed_hz = 30000000, + .bus_num = 1, + .chip_select = 0, + }, +}; + +/* * MityDSP-L138 includes a 256 MByte large-page NAND flash * (128K blocks). */ @@ -448,6 +527,11 @@ static void __init mityomapl138_init(void) mityomapl138_setup_nand(); + ret = da8xx_register_spi(1, mityomapl138_spi_flash_info, + ARRAY_SIZE(mityomapl138_spi_flash_info)); + if (ret) + pr_warning("spi 1 registration failed: %d\n", ret); + mityomapl138_config_emac(); ret = da8xx_register_rtc(); |