diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-22 20:32:53 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-22 20:32:53 (GMT) |
commit | f6a26ae7699416d86bea8cb68ce413571e9cab3c (patch) | |
tree | e91b7a7c7513151fe583721f7435cc9f5cdc4f42 /drivers/mtd/nand/orion_nand.c | |
parent | cdd3a354a05b0c33fe33ab11a0fb0838396cad19 (diff) | |
parent | 48a5765e5104f1afd22c75c5030af3a6cf24b4c3 (diff) | |
download | linux-fsl-qoriq-f6a26ae7699416d86bea8cb68ce413571e9cab3c.tar.xz |
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 'drivers/mtd/nand/orion_nand.c')
-rw-r--r-- | drivers/mtd/nand/orion_nand.c | 47 |
1 files changed, 44 insertions, 3 deletions
diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c index 1d3bfb2..0f50ef3 100644 --- a/drivers/mtd/nand/orion_nand.c +++ b/drivers/mtd/nand/orion_nand.c @@ -13,6 +13,7 @@ #include <linux/slab.h> #include <linux/module.h> #include <linux/platform_device.h> +#include <linux/of.h> #include <linux/mtd/mtd.h> #include <linux/mtd/nand.h> #include <linux/mtd/partitions.h> @@ -74,11 +75,13 @@ static void orion_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) static int __init orion_nand_probe(struct platform_device *pdev) { struct mtd_info *mtd; + struct mtd_part_parser_data ppdata = {}; struct nand_chip *nc; struct orion_nand_data *board; struct resource *res; void __iomem *io_base; int ret = 0; + u32 val = 0; nc = kzalloc(sizeof(struct nand_chip) + sizeof(struct mtd_info), GFP_KERNEL); if (!nc) { @@ -101,7 +104,32 @@ static int __init orion_nand_probe(struct platform_device *pdev) goto no_res; } - board = pdev->dev.platform_data; + if (pdev->dev.of_node) { + board = devm_kzalloc(&pdev->dev, sizeof(struct orion_nand_data), + GFP_KERNEL); + if (!board) { + printk(KERN_ERR "orion_nand: failed to allocate board structure.\n"); + ret = -ENOMEM; + goto no_res; + } + if (!of_property_read_u32(pdev->dev.of_node, "cle", &val)) + board->cle = (u8)val; + else + board->cle = 0; + if (!of_property_read_u32(pdev->dev.of_node, "ale", &val)) + board->ale = (u8)val; + else + board->ale = 1; + if (!of_property_read_u32(pdev->dev.of_node, + "bank-width", &val)) + board->width = (u8)val * 8; + else + board->width = 8; + if (!of_property_read_u32(pdev->dev.of_node, + "chip-delay", &val)) + board->chip_delay = (u8)val; + } else + board = pdev->dev.platform_data; mtd->priv = nc; mtd->owner = THIS_MODULE; @@ -115,6 +143,10 @@ static int __init orion_nand_probe(struct platform_device *pdev) if (board->chip_delay) nc->chip_delay = board->chip_delay; + WARN(board->width > 16, + "%d bit bus width out of range", + board->width); + if (board->width == 16) nc->options |= NAND_BUSWIDTH_16; @@ -129,8 +161,9 @@ static int __init orion_nand_probe(struct platform_device *pdev) } mtd->name = "orion_nand"; - ret = mtd_device_parse_register(mtd, NULL, NULL, board->parts, - board->nr_parts); + ppdata.of_node = pdev->dev.of_node; + ret = mtd_device_parse_register(mtd, NULL, &ppdata, + board->parts, board->nr_parts); if (ret) { nand_release(mtd); goto no_dev; @@ -161,11 +194,19 @@ static int __devexit orion_nand_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_OF +static struct of_device_id orion_nand_of_match_table[] = { + { .compatible = "mrvl,orion-nand", }, + {}, +}; +#endif + static struct platform_driver orion_nand_driver = { .remove = __devexit_p(orion_nand_remove), .driver = { .name = "orion_nand", .owner = THIS_MODULE, + .of_match_table = of_match_ptr(orion_nand_of_match_table), }, }; |