2018-01-16 22:07:58 +00:00
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From ee9081b2726a5ca8cde5497afdc5425e21ff8f8b Mon Sep 17 00:00:00 2001
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From: John Crispin <blogic@openwrt.org>
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Date: Mon, 15 Jul 2013 00:39:21 +0200
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Subject: [PATCH 37/53] mtd: cfi cmdset 0002 force word write
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---
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drivers/mtd/chips/cfi_cmdset_0002.c | 9 +++++++--
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1 file changed, 7 insertions(+), 2 deletions(-)
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--- a/drivers/mtd/chips/cfi_cmdset_0002.c
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+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
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@@ -40,7 +40,7 @@
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#include <linux/mtd/xip.h>
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#define AMD_BOOTLOC_BUG
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-#define FORCE_WORD_WRITE 0
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+#define FORCE_WORD_WRITE 1
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2018-07-31 02:11:07 +00:00
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#define MAX_RETRIES 3
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2018-01-16 22:07:58 +00:00
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@@ -51,7 +51,9 @@
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static int cfi_amdstd_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
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static int cfi_amdstd_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
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+#if !FORCE_WORD_WRITE
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static int cfi_amdstd_write_buffers(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
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+#endif
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static int cfi_amdstd_erase_chip(struct mtd_info *, struct erase_info *);
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static int cfi_amdstd_erase_varsize(struct mtd_info *, struct erase_info *);
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static void cfi_amdstd_sync (struct mtd_info *);
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@@ -202,6 +204,7 @@ static void fixup_amd_bootblock(struct m
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}
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#endif
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+#if !FORCE_WORD_WRITE
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static void fixup_use_write_buffers(struct mtd_info *mtd)
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{
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struct map_info *map = mtd->priv;
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@@ -211,6 +214,7 @@ static void fixup_use_write_buffers(stru
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mtd->_write = cfi_amdstd_write_buffers;
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}
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}
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+#endif /* !FORCE_WORD_WRITE */
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/* Atmel chips don't use the same PRI format as AMD chips */
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static void fixup_convert_atmel_pri(struct mtd_info *mtd)
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2019-10-07 11:04:42 +00:00
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@@ -1798,6 +1802,7 @@ static int cfi_amdstd_write_words(struct
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2018-01-16 22:07:58 +00:00
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/*
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* FIXME: interleaved mode not tested, and probably not supported!
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*/
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+#if !FORCE_WORD_WRITE
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static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip,
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unsigned long adr, const u_char *buf,
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int len)
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2019-10-07 11:04:42 +00:00
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@@ -1926,7 +1931,6 @@ static int __xipram do_write_buffer(stru
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2018-01-16 22:07:58 +00:00
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return ret;
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}
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-
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static int cfi_amdstd_write_buffers(struct mtd_info *mtd, loff_t to, size_t len,
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size_t *retlen, const u_char *buf)
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{
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2019-10-07 11:04:42 +00:00
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@@ -2001,6 +2005,7 @@ static int cfi_amdstd_write_buffers(stru
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2018-01-16 22:07:58 +00:00
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return 0;
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}
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+#endif /* !FORCE_WORD_WRITE */
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/*
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* Wait for the flash chip to become ready to write data
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