diff options
Diffstat (limited to 'recipes/linux/linux/acern30/n30-nand.patch')
| -rw-r--r-- | recipes/linux/linux/acern30/n30-nand.patch | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/recipes/linux/linux/acern30/n30-nand.patch b/recipes/linux/linux/acern30/n30-nand.patch new file mode 100644 index 0000000000..d3ac8c557a --- /dev/null +++ b/recipes/linux/linux/acern30/n30-nand.patch @@ -0,0 +1,97 @@ +This patch adds a nand flash configuration for the n30. + +Index: linux-2.6.14/arch/arm/mach-s3c2410/mach-n30.c +=================================================================== +--- linux-2.6.14.orig/arch/arm/mach-s3c2410/mach-n30.c ++++ linux-2.6.14/arch/arm/mach-s3c2410/mach-n30.c +@@ -33,6 +33,8 @@ + #include <linux/kthread.h> + + #include <linux/mmc/protocol.h> ++#include <linux/mtd/mtd.h> ++#include <linux/mtd/partitions.h> + + #include <asm/mach/arch.h> + #include <asm/mach/map.h> +@@ -55,6 +57,7 @@ + #include <asm/arch/ts.h> + #include <asm/arch/buttons.h> + #include <asm/arch/mmc.h> ++#include <asm/arch/nand.h> + + #include <linux/serial_core.h> + +@@ -276,6 +279,50 @@ static struct s3c24xx_mmc_platdata n30_m + .ocr_avail = MMC_VDD_32_33, + }; + ++static int chip0_map[] = { 0 }; ++ ++struct mtd_partition n30_default_nand_part[] = { ++ { ++ .name = "Whole flash", ++ .offset = 0, ++ .size = MTDPART_SIZ_FULL, ++ .mask_flags = MTD_WRITEABLE, ++ }, ++ { ++ .name = "Partition Table", ++ .offset = 0x28000, ++ .size = 0x8000, ++ }, ++ { ++ .name = "Kernel", ++ .offset = 0x30000, ++ .size = 0x4d0000, ++ }, ++ { ++ .name = "Root", ++ .offset = 0x500000, ++ .size = MTDPART_SIZ_FULL, ++ }, ++}; ++ ++static struct s3c2410_nand_set n30_nand_sets[] = { ++ { ++ .name = "chip0", ++ .nr_chips = 1, ++ .nr_map = chip0_map, ++ .nr_partitions = ARRAY_SIZE(n30_default_nand_part), ++ .partitions = n30_default_nand_part ++ }, ++}; ++ ++static struct s3c2410_platform_nand n30_nand_info = { ++ .tacls = 80, ++ .twrph0 = 80, ++ .twrph1 = 80, ++ .nr_sets = ARRAY_SIZE(n30_nand_sets), ++ .sets = n30_nand_sets, ++}; ++ + static struct platform_device *n30_devices[] __initdata = { + &s3c_device_usb, + &s3c_device_lcd, +@@ -287,6 +334,7 @@ static struct platform_device *n30_devic + &s3c_device_iis, + &s3c_device_usbgadget, + &s3c_device_sdi, ++ &s3c_device_nand, + }; + + static struct s3c2410_platform_i2c n30_i2ccfg = { +@@ -329,6 +377,14 @@ static void __init n30_init(void) + + s3c_device_i2c.dev.platform_data = &n30_i2ccfg; + s3c_device_sdi.dev.platform_data = &n30_mmc_cfg; ++ s3c_device_nand.dev.platform_data = &n30_nand_info; ++ ++ /* Clear any locks and write protects on the flash. */ ++ s3c2410_gpio_setpin(S3C2410_GPC5, 1); ++ msleep(1); ++ s3c2410_gpio_setpin(S3C2410_GPC5, 0); ++ msleep(1); ++ s3c2410_gpio_setpin(S3C2410_GPC5, 1); + + /* Turn off suspend on both USB ports, and switch the + * selectable USB port to USB device mode. */ |