diff options
Diffstat (limited to 'target/linux/lantiq/patches/210-nor.patch')
| -rw-r--r-- | target/linux/lantiq/patches/210-nor.patch | 67 |
1 files changed, 13 insertions, 54 deletions
diff --git a/target/linux/lantiq/patches/210-nor.patch b/target/linux/lantiq/patches/210-nor.patch index 5c4687996..fe2ce6de2 100644 --- a/target/linux/lantiq/patches/210-nor.patch +++ b/target/linux/lantiq/patches/210-nor.patch @@ -22,7 +22,7 @@ +obj-$(CONFIG_MTD_LANTIQ) += lantiq.o --- /dev/null +++ b/drivers/mtd/maps/lantiq.c -@@ -0,0 +1,173 @@ +@@ -0,0 +1,183 @@ +/* + * 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 @@ -44,6 +44,7 @@ +#include <linux/magic.h> +#include <linux/platform_device.h> +#include <linux/mtd/physmap.h> ++#include <linux/mtd/cfi.h> + +#include <lantiq.h> +#include <lantiq_platform.h> @@ -51,6 +52,7 @@ +#ifdef CONFIG_SOC_LANTIQ_XWAY +#include <xway.h> +#endif ++static int ltq_mtd_probing; + +static map_word +lq_read16(struct map_info *map, unsigned long adr) @@ -58,7 +60,8 @@ + unsigned long flags; + map_word temp; + spin_lock_irqsave(&ebu_lock, flags); -+ adr ^= 2; ++ if (ltq_mtd_probing) ++ adr ^= 2; + temp.x[0] = *((__u16 *)(map->virt + adr)); + spin_unlock_irqrestore(&ebu_lock, flags); + return temp; @@ -69,7 +72,8 @@ +{ + unsigned long flags; + spin_lock_irqsave(&ebu_lock, flags); -+ adr ^= 2; ++ if (ltq_mtd_probing) ++ adr ^= 2; + *((__u16 *)(map->virt + adr)) = d.x[0]; + spin_unlock_irqrestore(&ebu_lock, flags); +} @@ -125,6 +129,7 @@ + struct mtd_partition *parts = NULL; + struct resource *res = 0; + int nr_parts = 0; ++ struct cfi_private *cfi; + +#ifdef CONFIG_SOC_LANTIQ_XWAY + lq_w32(lq_r32(LQ_EBU_BUSCON0) & ~EBU_WRDIS, LQ_EBU_BUSCON0); @@ -153,7 +158,9 @@ + return -EIO; + } + ++ ltq_mtd_probing = 1; + lq_mtd = (struct mtd_info *) do_map_probe("cfi_probe", &lq_map); ++ ltq_mtd_probing = 0; + if (!lq_mtd) { + iounmap(lq_map.virt); + dev_err(&pdev->dev, "probing failed\n"); @@ -161,6 +168,9 @@ + } + + lq_mtd->owner = THIS_MODULE; ++ cfi = lq_map.fldrv_priv; ++ cfi->addr_unlock1 ^= 1; ++ cfi->addr_unlock2 ^= 1; + + nr_parts = parse_mtd_partitions(lq_mtd, part_probe_types, &parts, 0); + if (nr_parts > 0) { @@ -196,54 +206,3 @@ +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("John Crispin <blogic@openwrt.org>"); +MODULE_DESCRIPTION("Lantiq SoC NOR"); ---- a/drivers/mtd/chips/cfi_cmdset_0001.c -+++ b/drivers/mtd/chips/cfi_cmdset_0001.c -@@ -40,7 +40,11 @@ - /* #define CMDSET0001_DISABLE_WRITE_SUSPEND */ - - // debugging, turns off buffer write mode if set to 1 --#define FORCE_WORD_WRITE 0 -+#ifdef CONFIG_LANTIQ -+# define FORCE_WORD_WRITE 1 -+#else -+# define FORCE_WORD_WRITE 0 -+#endif - - /* Intel chips */ - #define I82802AB 0x00ad -@@ -1493,6 +1497,9 @@ - int ret=0; - - adr += chip->start; -+#ifdef CONFIG_LANTIQ -+ adr ^= 2; -+#endif - - switch (mode) { - case FL_WRITING: ---- a/drivers/mtd/chips/cfi_cmdset_0002.c -+++ b/drivers/mtd/chips/cfi_cmdset_0002.c -@@ -39,7 +39,11 @@ - #include <linux/mtd/xip.h> - - #define AMD_BOOTLOC_BUG --#define FORCE_WORD_WRITE 0 -+#ifdef CONFIG_LANTIQ -+# define FORCE_WORD_WRITE 1 -+#else -+# define FORCE_WORD_WRITE 0 -+#endif - - #define MAX_WORD_RETRIES 3 - -@@ -1167,6 +1171,10 @@ - - adr += chip->start; - -+#ifdef CONFIG_LANTIQ -+ adr ^= 2; -+#endif -+ - mutex_lock(&chip->mutex); - ret = get_chip(map, chip, adr, FL_WRITING); - if (ret) { |