davinci: add spi devices support for MityDSP-L138/MityARM-1808 platform (dd561c6a) · Commits · 戴 / test

arch/arm/mach-davinci/board-mityomapl138.c

+84 −0

Original line number	Diff line number	Diff line
		@@ -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"

		@@ -293,6 +296,82 @@ static int __init pmic_tps65023_init(void)
		ARRAY_SIZE(mityomap_tps65023_info));
		}

		/*
		* 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();

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