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authorSekhar Nori <nsekhar@ti.com>2011-02-24 00:09:27 -0500
committerKevin Hilman <khilman@ti.com>2011-03-11 13:48:29 -0500
commitfdce5568066e1173c9323f021c7ade6859b8234d (patch)
tree1d91c8b5ccdcd0578955f5634fe0b6d0b7e95eeb /arch
parentdd561c6a77edd5a106484901d8a5d3d5eb4a54b5 (diff)
davinci: add spi devices support for da850/omap-l138/am18x evm
This patch adds the on-board SPI flash device to the DA850/OMAP-L138/AM18x EVM. It also registers the SPI flash device to the MTD subsystem. Based on SPI flash device support for MityDSP-L138F platform. Signed-off-by: Sekhar Nori <nsekhar@ti.com> [michael.williamson@criticallink.com: moved da850_evm_spi1_pdata to devices-da8xx.c] [michael.williamson@criticallink.com: moved da850evm_init_spi1 to devices-da8xx.c] Signed-off-by: Michael Williamson <michael.williamson@criticallink.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-davinci/board-da850-evm.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index 11f986bec89..0aef6b2eb13 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -29,6 +29,8 @@
29#include <linux/regulator/machine.h> 29#include <linux/regulator/machine.h>
30#include <linux/regulator/tps6507x.h> 30#include <linux/regulator/tps6507x.h>
31#include <linux/input/tps6507x-ts.h> 31#include <linux/input/tps6507x-ts.h>
32#include <linux/spi/spi.h>
33#include <linux/spi/flash.h>
32 34
33#include <asm/mach-types.h> 35#include <asm/mach-types.h>
34#include <asm/mach/arch.h> 36#include <asm/mach/arch.h>
@@ -38,6 +40,7 @@
38#include <mach/nand.h> 40#include <mach/nand.h>
39#include <mach/mux.h> 41#include <mach/mux.h>
40#include <mach/aemif.h> 42#include <mach/aemif.h>
43#include <mach/spi.h>
41 44
42#define DA850_EVM_PHY_ID "0:00" 45#define DA850_EVM_PHY_ID "0:00"
43#define DA850_LCD_PWR_PIN GPIO_TO_PIN(2, 8) 46#define DA850_LCD_PWR_PIN GPIO_TO_PIN(2, 8)
@@ -48,6 +51,70 @@
48 51
49#define DA850_MII_MDIO_CLKEN_PIN GPIO_TO_PIN(2, 6) 52#define DA850_MII_MDIO_CLKEN_PIN GPIO_TO_PIN(2, 6)
50 53
54static struct mtd_partition da850evm_spiflash_part[] = {
55 [0] = {
56 .name = "UBL",
57 .offset = 0,
58 .size = SZ_64K,
59 .mask_flags = MTD_WRITEABLE,
60 },
61 [1] = {
62 .name = "U-Boot",
63 .offset = MTDPART_OFS_APPEND,
64 .size = SZ_512K,
65 .mask_flags = MTD_WRITEABLE,
66 },
67 [2] = {
68 .name = "U-Boot-Env",
69 .offset = MTDPART_OFS_APPEND,
70 .size = SZ_64K,
71 .mask_flags = MTD_WRITEABLE,
72 },
73 [3] = {
74 .name = "Kernel",
75 .offset = MTDPART_OFS_APPEND,
76 .size = SZ_2M + SZ_512K,
77 .mask_flags = 0,
78 },
79 [4] = {
80 .name = "Filesystem",
81 .offset = MTDPART_OFS_APPEND,
82 .size = SZ_4M,
83 .mask_flags = 0,
84 },
85 [5] = {
86 .name = "MAC-Address",
87 .offset = SZ_8M - SZ_64K,
88 .size = SZ_64K,
89 .mask_flags = MTD_WRITEABLE,
90 },
91};
92
93static struct flash_platform_data da850evm_spiflash_data = {
94 .name = "m25p80",
95 .parts = da850evm_spiflash_part,
96 .nr_parts = ARRAY_SIZE(da850evm_spiflash_part),
97 .type = "m25p64",
98};
99
100static struct davinci_spi_config da850evm_spiflash_cfg = {
101 .io_type = SPI_IO_TYPE_DMA,
102 .c2tdelay = 8,
103 .t2cdelay = 8,
104};
105
106static struct spi_board_info da850evm_spi_info[] = {
107 {
108 .modalias = "m25p80",
109 .platform_data = &da850evm_spiflash_data,
110 .controller_data = &da850evm_spiflash_cfg,
111 .mode = SPI_MODE_0,
112 .max_speed_hz = 30000000,
113 .bus_num = 1,
114 .chip_select = 0,
115 },
116};
117
51static struct mtd_partition da850_evm_norflash_partition[] = { 118static struct mtd_partition da850_evm_norflash_partition[] = {
52 { 119 {
53 .name = "bootloaders + env", 120 .name = "bootloaders + env",
@@ -1167,6 +1234,12 @@ static __init void da850_evm_init(void)
1167 if (ret) 1234 if (ret)
1168 pr_warning("da850_evm_init: suspend registration failed: %d\n", 1235 pr_warning("da850_evm_init: suspend registration failed: %d\n",
1169 ret); 1236 ret);
1237
1238 ret = da8xx_register_spi(1, da850evm_spi_info,
1239 ARRAY_SIZE(da850evm_spi_info));
1240 if (ret)
1241 pr_warning("da850_evm_init: spi 1 registration failed: %d\n",
1242 ret);
1170} 1243}
1171 1244
1172#ifdef CONFIG_SERIAL_8250_CONSOLE 1245#ifdef CONFIG_SERIAL_8250_CONSOLE