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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-22 22:32:53 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-22 22:32:53 +0200 |
commit | f6a26ae7699416d86bea8cb68ce413571e9cab3c (patch) | |
tree | e91b7a7c7513151fe583721f7435cc9f5cdc4f42 /arch/arm/mach-omap2/board-igep0020.c | |
parent | Merge tag 'pm' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc (diff) | |
parent | Merge branch 'board-specific' of git://github.com/hzhuang1/linux into next/bo... (diff) | |
download | linux-f6a26ae7699416d86bea8cb68ce413571e9cab3c.tar.xz linux-f6a26ae7699416d86bea8cb68ce413571e9cab3c.zip |
Merge tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm-soc board specific changes from Olof Johansson:
"While we generally attempt to get rid of board specific files and
replace them with device tree based descriptions, a lot of platforms
have not come that far:
In shmobile, we add two new board files because their recently started
effort to add DT support has not proceeded enough to use it for all of
the important hardware.
In Kirkwood, we are adding support for new boards with a combination
of DT and board file contents in multiple cases.
pxa/mmp and imx are extending support for existing board files but not
adding new ones."
Fix up trivial conflicts in arch/arm/mach-{mmp/ttc_dkb.c,shmobile/{Kconfig,Makefile}}
* tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (94 commits)
ARM: shmobile: fix smp build
ARM: kirkwood: Add support for RaidSonic IB-NAS6210/6220 using devicetree
kirkwood: Add iconnect support
orion/kirkwood: create a generic function for gpio led blinking
kirkwood/orion: fix orion_gpio_set_blink
ARM: kirkwood: Define DNS-320/DNS-325 NAND in fdt
kirkwood: Allow nand to be configured via. devicetree
mtd: Add orion_nand devicetree bindings
ARM: kirkwood: Basic support for DNS-320 and DNS-325
ARM: mach-shmobile: Use DT_MACHINE for armadillo 800 eva
ARM: mach-shmobile: Use DT_MACHINE for KZM9G
ARM: pxa: hx4700: Add Synaptics NavPoint touchpad
ARM: pxa: Use REGULATOR_SUPPLY macro
ARM: mach-shmobile: kzm9g: enable SMP boot
ARM: mach-shmobile: kzm9g: defconfig update
ARM: mach-shmobile: kzm9g: add PCF8757 gpio-key
ARM: mach-shmobile: kzm9g: add SDHI support
ARM: mach-shmobile: kzm9g: add MMCIF support
ARM: mach-shmobile: kzm9g: correct screen direction
ARM: mach-shmobile: sh73a0.h: add GPIO_NR
...
Diffstat (limited to 'arch/arm/mach-omap2/board-igep0020.c')
-rw-r--r-- | arch/arm/mach-omap2/board-igep0020.c | 74 |
1 files changed, 31 insertions, 43 deletions
diff --git a/arch/arm/mach-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c index 4c1acecce93f..7a274098f67b 100644 --- a/arch/arm/mach-omap2/board-igep0020.c +++ b/arch/arm/mach-omap2/board-igep0020.c @@ -24,6 +24,8 @@ #include <linux/i2c/twl.h> #include <linux/mmc/host.h> +#include <linux/mtd/nand.h> + #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -39,6 +41,8 @@ #include "hsmmc.h" #include "sdram-numonyx-m65kxxxxam.h" #include "common-board-devices.h" +#include "board-flash.h" +#include "control.h" #define IGEP2_SMSC911X_CS 5 #define IGEP2_SMSC911X_GPIO 176 @@ -60,6 +64,10 @@ #define IGEP3_GPIO_LED1_RED 16 #define IGEP3_GPIO_USBH_NRESET 183 +#define IGEP_SYSBOOT_MASK 0x1f +#define IGEP_SYSBOOT_NAND 0x0f +#define IGEP_SYSBOOT_ONENAND 0x10 + /* * IGEP2 Hardware Revision Table * @@ -110,8 +118,10 @@ static void __init igep2_get_revision(void) gpio_free(IGEP2_GPIO_LED1_RED); } -#if defined(CONFIG_MTD_ONENAND_OMAP2) || \ - defined(CONFIG_MTD_ONENAND_OMAP2_MODULE) +#if defined(CONFIG_MTD_ONENAND_OMAP2) || \ + defined(CONFIG_MTD_ONENAND_OMAP2_MODULE) || \ + defined(CONFIG_MTD_NAND_OMAP2) || \ + defined(CONFIG_MTD_NAND_OMAP2_MODULE) #define ONENAND_MAP 0x20000000 @@ -123,7 +133,7 @@ static void __init igep2_get_revision(void) * So MTD regards it as 4KiB page size and 256KiB block size 64*(2*2048) */ -static struct mtd_partition igep_onenand_partitions[] = { +static struct mtd_partition igep_flash_partitions[] = { { .name = "X-Loader", .offset = 0, @@ -151,50 +161,28 @@ static struct mtd_partition igep_onenand_partitions[] = { }, }; -static struct omap_onenand_platform_data igep_onenand_data = { - .parts = igep_onenand_partitions, - .nr_parts = ARRAY_SIZE(igep_onenand_partitions), - .dma_channel = -1, /* disable DMA in OMAP OneNAND driver */ -}; - -static struct platform_device igep_onenand_device = { - .name = "omap2-onenand", - .id = -1, - .dev = { - .platform_data = &igep_onenand_data, - }, -}; +static inline u32 igep_get_sysboot_value(void) +{ + return omap_ctrl_readl(OMAP343X_CONTROL_STATUS) & IGEP_SYSBOOT_MASK; +} static void __init igep_flash_init(void) { - u8 cs = 0; - u8 onenandcs = GPMC_CS_NUM + 1; - - for (cs = 0; cs < GPMC_CS_NUM; cs++) { - u32 ret; - ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1); - - /* Check if NAND/oneNAND is configured */ - if ((ret & 0xC00) == 0x800) - /* NAND found */ - pr_err("IGEP: Unsupported NAND found\n"); - else { - ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG7); - if ((ret & 0x3F) == (ONENAND_MAP >> 24)) - /* ONENAND found */ - onenandcs = cs; - } - } - - if (onenandcs > GPMC_CS_NUM) { - pr_err("IGEP: Unable to find configuration in GPMC\n"); - return; + u32 mux; + mux = igep_get_sysboot_value(); + + if (mux == IGEP_SYSBOOT_NAND) { + pr_info("IGEP: initializing NAND memory device\n"); + board_nand_init(igep_flash_partitions, + ARRAY_SIZE(igep_flash_partitions), + 0, NAND_BUSWIDTH_16); + } else if (mux == IGEP_SYSBOOT_ONENAND) { + pr_info("IGEP: initializing OneNAND memory device\n"); + board_onenand_init(igep_flash_partitions, + ARRAY_SIZE(igep_flash_partitions), 0); + } else { + pr_err("IGEP: Flash: unsupported sysboot sequence found\n"); } - - igep_onenand_data.cs = onenandcs; - - if (platform_device_register(&igep_onenand_device) < 0) - pr_err("IGEP: Unable to register OneNAND device\n"); } #else |