diff options
Diffstat (limited to 'target')
9 files changed, 361 insertions, 5 deletions
diff --git a/target/linux/ar71xx/config-2.6.28 b/target/linux/ar71xx/config-2.6.28 index 6148e60d26..824dd3bd58 100644 --- a/target/linux/ar71xx/config-2.6.28 +++ b/target/linux/ar71xx/config-2.6.28 @@ -121,8 +121,8 @@ CONFIG_MIPS_MT_DISABLED=y # CONFIG_MIPS_MT_SMP is not set # CONFIG_MIPS_MT_SMTC is not set # CONFIG_MIPS_SIM is not set +CONFIG_MTD_AR91XX_FLASH=y # CONFIG_MTD_CFI is not set -# CONFIG_MTD_COMPLEX_MAPPINGS is not set CONFIG_MTD_CONCAT=y CONFIG_MTD_M25P80=y CONFIG_MTD_MYLOADER_PARTS=y diff --git a/target/linux/ar71xx/config-2.6.29 b/target/linux/ar71xx/config-2.6.29 index 9f54da924b..e3e75b0f74 100644 --- a/target/linux/ar71xx/config-2.6.29 +++ b/target/linux/ar71xx/config-2.6.29 @@ -126,8 +126,8 @@ CONFIG_MIPS_MT_DISABLED=y # CONFIG_MIPS_MT_SMTC is not set # CONFIG_MIPS_SIM is not set CONFIG_MISC_FILESYSTEMS=y +CONFIG_MTD_AR91XX_FLASH=y # CONFIG_MTD_CFI is not set -# CONFIG_MTD_COMPLEX_MAPPINGS is not set CONFIG_MTD_CONCAT=y CONFIG_MTD_M25P80=y CONFIG_MTD_NAND=y diff --git a/target/linux/ar71xx/config-2.6.30 b/target/linux/ar71xx/config-2.6.30 index 3d60d4cce6..b1e0c4e729 100644 --- a/target/linux/ar71xx/config-2.6.30 +++ b/target/linux/ar71xx/config-2.6.30 @@ -134,8 +134,8 @@ CONFIG_MIPS_MT_DISABLED=y # CONFIG_MIPS_MT_SMP is not set # CONFIG_MIPS_MT_SMTC is not set # CONFIG_MIPS_SIM is not set +CONFIG_MTD_AR91XX_FLASH=y # CONFIG_MTD_CFI is not set -# CONFIG_MTD_COMPLEX_MAPPINGS is not set CONFIG_MTD_CONCAT=y CONFIG_MTD_M25P80=y CONFIG_MTD_NAND=y diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ap83.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ap83.c index d5a3032061..ed5d1a8d4f 100644 --- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ap83.c +++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-ap83.c @@ -68,7 +68,7 @@ static struct mtd_partition ap83_flash_partitions[] = { }; #endif /* CONFIG_MTD_PARTITIONS */ -static struct physmap_flash_data ap83_flash_data = { +static struct ar91xx_flash_platform_data ap83_flash_data = { .width = 2, #ifdef CONFIG_MTD_PARTITIONS .parts = ap83_flash_partitions, @@ -85,7 +85,7 @@ static struct resource ap83_flash_resources[] = { }; static struct platform_device ap83_flash_device = { - .name = "physmap-flash", + .name = "ar91xx-flash", .id = -1, .resource = ap83_flash_resources, .num_resources = ARRAY_SIZE(ap83_flash_resources), diff --git a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/platform.h b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/platform.h index 55c62b7130..b008abd8d3 100644 --- a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/platform.h +++ b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/platform.h @@ -16,6 +16,8 @@ #include <linux/skbuff.h> #include <linux/phy.h> #include <linux/spi/spi.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> struct ag71xx_platform_data { phy_interface_t phy_if_mode; @@ -51,4 +53,12 @@ struct ar71xx_spi_platform_data { #define AR71XX_SPI_CS_INACTIVE 0 #define AR71XX_SPI_CS_ACTIVE 1 +struct ar91xx_flash_platform_data { + unsigned int width; +#ifdef CONFIG_MTD_PARTITIONS + unsigned int nr_parts; + struct mtd_partition *parts; +#endif +}; + #endif /* __ASM_MACH_AR71XX_PLATFORM_H */ diff --git a/target/linux/ar71xx/files/drivers/mtd/maps/ar91xx_flash.c b/target/linux/ar71xx/files/drivers/mtd/maps/ar91xx_flash.c new file mode 100644 index 0000000000..e83a1477f0 --- /dev/null +++ b/target/linux/ar71xx/files/drivers/mtd/maps/ar91xx_flash.c @@ -0,0 +1,268 @@ +/* + * Parallel flash driver for the Atheros AR91xx SoC + * + * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <linux/io.h> + +#include <asm/mach-ar71xx/ar71xx.h> +#include <asm/mach-ar71xx/platform.h> + +#define DRV_NAME "ar91xx-flash" + +struct ar91xx_flash_info { + struct mtd_info *mtd; + struct map_info map; +#ifdef CONFIG_MTD_PARTITIONS + int nr_parts; + struct mtd_partition *parts; +#endif +}; + +static map_word ar91xx_flash_read(struct map_info *map, unsigned long ofs) +{ + map_word val; + + if (map_bankwidth_is_1(map)) + val.x[0] = __raw_readb(map->virt + (ofs ^ 3)); + else if (map_bankwidth_is_2(map)) + val.x[0] = __raw_readw(map->virt + (ofs ^ 2)); + else + val = map_word_ff(map); + + return val; +} + +static void ar91xx_flash_write(struct map_info *map, map_word d, + unsigned long ofs) +{ + if (map_bankwidth_is_1(map)) + __raw_writeb(d.x[0], map->virt + (ofs ^ 3)); + else if (map_bankwidth_is_2(map)) + __raw_writew(d.x[0], map->virt + (ofs ^ 2)); + + mb(); +} + +static int ar91xx_flash_remove(struct platform_device *pdev) +{ + struct ar91xx_flash_platform_data *pdata; + struct ar91xx_flash_info *info; + + info = platform_get_drvdata(pdev); + if (info == NULL) + return 0; + + platform_set_drvdata(pdev, NULL); + + if (info->mtd == NULL) + return 0; + + pdata = pdev->dev.platform_data; +#ifdef CONFIG_MTD_PARTITIONS + if (info->nr_parts) { + del_mtd_partitions(info->mtd); + kfree(info->parts); + } else if (pdata->nr_parts) { + del_mtd_partitions(info->mtd); + } else { + del_mtd_device(info->mtd); + } +#else + del_mtd_device(info->mtd); +#endif + map_destroy(info->mtd); + + return 0; +} + +static const char *rom_probe_types[] = { "cfi_probe", "jedec_probe", NULL }; +#ifdef CONFIG_MTD_PARTITIONS +static const char *part_probe_types[] = { "cmdlinepart", "RedBoot", NULL }; +#endif + +static int ar91xx_flash_probe(struct platform_device *pdev) +{ + struct ar91xx_flash_platform_data *pdata; + struct ar91xx_flash_info *info; + struct resource *res; + struct resource *region; + const char **probe_type; + int err = 0; + + pdata = pdev->dev.platform_data; + if (pdata == NULL) + return -EINVAL; + + info = devm_kzalloc(&pdev->dev, sizeof(struct ar91xx_flash_info), + GFP_KERNEL); + if (info == NULL) { + err = -ENOMEM; + goto err_out; + } + + platform_set_drvdata(pdev, info); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (res == NULL) { + err = -ENOENT; + goto err_out; + } + + dev_info(&pdev->dev, "%.8llx at %.8llx\n", + (unsigned long long)(res->end - res->start + 1), + (unsigned long long)res->start); + + region = devm_request_mem_region(&pdev->dev, + res->start, res->end - res->start + 1, + dev_name(&pdev->dev)); + if (region == NULL) { + dev_err(&pdev->dev, "could not reserve memory region\n"); + err = -ENOMEM; + goto err_out; + } + + info->map.name = dev_name(&pdev->dev); + info->map.phys = res->start; + info->map.size = res->end - res->start + 1; + info->map.bankwidth = pdata->width; + + info->map.virt = devm_ioremap(&pdev->dev, info->map.phys, + info->map.size); + if (info->map.virt == NULL) { + dev_err(&pdev->dev, "failed to ioremap flash region\n"); + err = -EIO; + goto err_out; + } + + simple_map_init(&info->map); + info->map.read = ar91xx_flash_read; + info->map.write = ar91xx_flash_write; + + probe_type = rom_probe_types; + for (; info->mtd == NULL && *probe_type != NULL; probe_type++) + info->mtd = do_map_probe(*probe_type, &info->map); + + if (info->mtd == NULL) { + dev_err(&pdev->dev, "map_probe failed\n"); + err = -ENXIO; + goto err_out; + } + + info->mtd->owner = THIS_MODULE; + +#ifdef CONFIG_MTD_PARTITIONS + if (pdata->nr_parts) { + dev_info(&pdev->dev, "using static partition mapping\n"); + add_mtd_partitions(info->mtd, pdata->parts, pdata->nr_parts); + return 0; + } + + err = parse_mtd_partitions(info->mtd, part_probe_types, + &info->parts, 0); + if (err > 0) { + add_mtd_partitions(info->mtd, info->parts, err); + return 0; + } +#endif + + add_mtd_device(info->mtd); + return 0; + + err_out: + ar91xx_flash_remove(pdev); + return err; +} + +#ifdef CONFIG_PM +static int ar91xx_flash_suspend(struct platform_device *dev, pm_message_t state) +{ + struct ar91xx_flash_info *info = platform_get_drvdata(dev); + int ret = 0; + + if (info->mtd->suspend) + ret = info->mtd->suspend(info->mtd); + + if (ret) + goto fail; + + return 0; + + fail: + if (info->mtd->suspend) { + BUG_ON(!info->mtd->resume); + info->mtd->resume(info->mtd); + } + + return ret; +} + +static int ar91xx_flash_resume(struct platform_device *pdev) +{ + struct ar91xx_flash_info *info = platform_get_drvdata(pdev); + + if (info->mtd->resume) + info->mtd->resume(info->mtd); + + return 0; +} + +static void ar91xx_flash_shutdown(struct platform_device *pdev) +{ + struct ar91xx_flash_info *info = platform_get_drvdata(pdev); + + if (info->mtd->suspend && info->mtd->resume) + if (info->mtd->suspend(info->mtd) == 0) + info->mtd->resume(info->mtd); +} +#else +#define ar91xx_flash_suspend NULL +#define ar91xx_flash_resume NULL +#define ar91xx_flash_shutdown NULL +#endif + +static struct platform_driver ar91xx_flash_driver = { + .probe = ar91xx_flash_probe, + .remove = ar91xx_flash_remove, + .suspend = ar91xx_flash_suspend, + .resume = ar91xx_flash_resume, + .shutdown = ar91xx_flash_shutdown, + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + }, +}; + +static int __init ar91xx_flash_init(void) +{ + return platform_driver_register(&ar91xx_flash_driver); +} + +static void __exit ar91xx_flash_exit(void) +{ + platform_driver_unregister(&ar91xx_flash_driver); +} + +module_init(ar91xx_flash_init); +module_exit(ar91xx_flash_exit); + +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>"); +MODULE_DESCRIPTION("Parallel flash driver for the Atheros AR91xx SoC"); +MODULE_ALIAS("platform:" DRV_NAME); diff --git a/target/linux/ar71xx/patches-2.6.28/007-ar91xx_flash_driver.patch b/target/linux/ar71xx/patches-2.6.28/007-ar91xx_flash_driver.patch new file mode 100644 index 0000000000..3219ff3824 --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.28/007-ar91xx_flash_driver.patch @@ -0,0 +1,26 @@ +--- a/drivers/mtd/maps/Kconfig ++++ b/drivers/mtd/maps/Kconfig +@@ -257,6 +257,13 @@ config MTD_ALCHEMY + help + Flash memory access on AMD Alchemy Pb/Db/RDK Reference Boards + ++config MTD_AR91XX_FLASH ++ tristate "Atheros AR91xx parallel flash support" ++ depends on ATHEROS_AR71XX ++ select MTD_COMPLEX_MAPPINGS ++ help ++ Parallel flash driver for the Atheros AR91xx based boards. ++ + config MTD_DILNETPC + tristate "CFI Flash device mapped on DIL/Net PC" + depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT +--- a/drivers/mtd/maps/Makefile ++++ b/drivers/mtd/maps/Makefile +@@ -42,6 +42,7 @@ obj-$(CONFIG_MTD_DBOX2) += dbox2-flash. + obj-$(CONFIG_MTD_SOLUTIONENGINE)+= solutionengine.o + obj-$(CONFIG_MTD_PCI) += pci.o + obj-$(CONFIG_MTD_ALCHEMY) += alchemy-flash.o ++obj-$(CONFIG_MTD_AR91XX_FLASH) += ar91xx_flash.o + obj-$(CONFIG_MTD_AUTCPU12) += autcpu12-nvram.o + obj-$(CONFIG_MTD_EDB7312) += edb7312.o + obj-$(CONFIG_MTD_IMPA7) += impa7.o diff --git a/target/linux/ar71xx/patches-2.6.29/007-ar91xx_flash_driver.patch b/target/linux/ar71xx/patches-2.6.29/007-ar91xx_flash_driver.patch new file mode 100644 index 0000000000..943af6e42f --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.29/007-ar91xx_flash_driver.patch @@ -0,0 +1,26 @@ +--- a/drivers/mtd/maps/Kconfig ++++ b/drivers/mtd/maps/Kconfig +@@ -268,6 +268,13 @@ config MTD_ALCHEMY + help + Flash memory access on AMD Alchemy Pb/Db/RDK Reference Boards + ++config MTD_AR91XX_FLASH ++ tristate "Atheros AR91xx parallel flash support" ++ depends on ATHEROS_AR71XX ++ select MTD_COMPLEX_MAPPINGS ++ help ++ Parallel flash driver for the Atheros AR91xx based boards. ++ + config MTD_DILNETPC + tristate "CFI Flash device mapped on DIL/Net PC" + depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT +--- a/drivers/mtd/maps/Makefile ++++ b/drivers/mtd/maps/Makefile +@@ -42,6 +42,7 @@ obj-$(CONFIG_MTD_DBOX2) += dbox2-flash. + obj-$(CONFIG_MTD_SOLUTIONENGINE)+= solutionengine.o + obj-$(CONFIG_MTD_PCI) += pci.o + obj-$(CONFIG_MTD_ALCHEMY) += alchemy-flash.o ++obj-$(CONFIG_MTD_AR91XX_FLASH) += ar91xx_flash.o + obj-$(CONFIG_MTD_AUTCPU12) += autcpu12-nvram.o + obj-$(CONFIG_MTD_EDB7312) += edb7312.o + obj-$(CONFIG_MTD_IMPA7) += impa7.o diff --git a/target/linux/ar71xx/patches-2.6.30/007-ar91xx_flash_driver.patch b/target/linux/ar71xx/patches-2.6.30/007-ar91xx_flash_driver.patch new file mode 100644 index 0000000000..943af6e42f --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.30/007-ar91xx_flash_driver.patch @@ -0,0 +1,26 @@ +--- a/drivers/mtd/maps/Kconfig ++++ b/drivers/mtd/maps/Kconfig +@@ -268,6 +268,13 @@ config MTD_ALCHEMY + help + Flash memory access on AMD Alchemy Pb/Db/RDK Reference Boards + ++config MTD_AR91XX_FLASH ++ tristate "Atheros AR91xx parallel flash support" ++ depends on ATHEROS_AR71XX ++ select MTD_COMPLEX_MAPPINGS ++ help ++ Parallel flash driver for the Atheros AR91xx based boards. ++ + config MTD_DILNETPC + tristate "CFI Flash device mapped on DIL/Net PC" + depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT +--- a/drivers/mtd/maps/Makefile ++++ b/drivers/mtd/maps/Makefile +@@ -42,6 +42,7 @@ obj-$(CONFIG_MTD_DBOX2) += dbox2-flash. + obj-$(CONFIG_MTD_SOLUTIONENGINE)+= solutionengine.o + obj-$(CONFIG_MTD_PCI) += pci.o + obj-$(CONFIG_MTD_ALCHEMY) += alchemy-flash.o ++obj-$(CONFIG_MTD_AR91XX_FLASH) += ar91xx_flash.o + obj-$(CONFIG_MTD_AUTCPU12) += autcpu12-nvram.o + obj-$(CONFIG_MTD_EDB7312) += edb7312.o + obj-$(CONFIG_MTD_IMPA7) += impa7.o |