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authorHaavard Skinnemoen <hskinnemoen@atmel.com>2006-08-09 04:54:44 -0400
committerJosh Boyer <jwboyer@gmail.com>2006-08-16 21:13:06 -0400
commit5b0c5c2c0d04c29f85abb485378ba5476c7aeec2 (patch)
treec83b1e4f3947b23c24b6cacb2cc1ac8f2f0cd012 /drivers/mtd/chips
parent0b6c0bb3f9621b128011bcd5f65047c73afdde3b (diff)
MTD: Convert Atmel PRI information to AMD format
Atmel flash chips don't have PRI information in the same format as AMD flash chips. This patch installs a fixup for all Atmel chips that converts the relevant PRI fields into AMD format. Only the fields that are actually used by the command set is actually converted. The rest are initialized to zero (which should be safe) Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Josh Boyer <jwboyer@gmail.com>
Diffstat (limited to 'drivers/mtd/chips')
-rw-r--r--drivers/mtd/chips/cfi_cmdset_0002.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index 9885726a16e4..8901c4412daf 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -161,6 +161,26 @@ static void fixup_use_write_buffers(struct mtd_info *mtd, void *param)
161 } 161 }
162} 162}
163 163
164/* Atmel chips don't use the same PRI format as AMD chips */
165static void fixup_convert_atmel_pri(struct mtd_info *mtd, void *param)
166{
167 struct map_info *map = mtd->priv;
168 struct cfi_private *cfi = map->fldrv_priv;
169 struct cfi_pri_amdstd *extp = cfi->cmdset_priv;
170 struct cfi_pri_atmel atmel_pri;
171
172 memcpy(&atmel_pri, extp, sizeof(atmel_pri));
173 memset(extp + 5, 0, sizeof(*extp) - 5);
174
175 if (atmel_pri.Features & 0x02)
176 extp->EraseSuspend = 2;
177
178 if (atmel_pri.BottomBoot)
179 extp->TopBottom = 2;
180 else
181 extp->TopBottom = 3;
182}
183
164static void fixup_use_secsi(struct mtd_info *mtd, void *param) 184static void fixup_use_secsi(struct mtd_info *mtd, void *param)
165{ 185{
166 /* Setup for chips with a secsi area */ 186 /* Setup for chips with a secsi area */
@@ -192,6 +212,7 @@ static struct cfi_fixup cfi_fixup_table[] = {
192#if !FORCE_WORD_WRITE 212#if !FORCE_WORD_WRITE
193 { CFI_MFR_ANY, CFI_ID_ANY, fixup_use_write_buffers, NULL, }, 213 { CFI_MFR_ANY, CFI_ID_ANY, fixup_use_write_buffers, NULL, },
194#endif 214#endif
215 { CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL },
195 { 0, 0, NULL, NULL } 216 { 0, 0, NULL, NULL }
196}; 217};
197static struct cfi_fixup jedec_fixup_table[] = { 218static struct cfi_fixup jedec_fixup_table[] = {