From 6a011ce851a0ba23ad50f9bac06dc323a863d0c5 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Sun, 10 Apr 2011 16:06:29 -0400 Subject: [PATCH] cfi_flash: reverse geometry for M29W800DT parts The M29W800DT parts also report their geometry with the sector layout reversed. So add that ID to the flash_fixup_stm function. Otherwise, we get: bfin> flinfo Bank # 1: CFI conformant FLASH (16 x 16) Size: 1 MB in 19 Sectors AMD Standard command set, Manufacturer ID: 0x20, Device ID: 0x22D7 Erase timeout: 8192 ms, write timeout: 1 ms Sector Start Addresses: 20000000 20004000 20006000 20008000 20010000 20020000 20030000 20040000 20050000 20060000 20070000 20080000 20090000 200A0000 200B0000 200C0000 200D0000 200E0000 200F0000 Reported-by: Jianxi Fu Signed-off-by: Mike Frysinger Signed-off-by: Stefan Roese --- drivers/mtd/cfi_flash.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c index 91ddcb4676..b1110a138e 100644 --- a/drivers/mtd/cfi_flash.c +++ b/drivers/mtd/cfi_flash.c @@ -1852,9 +1852,10 @@ static void flash_fixup_stm(flash_info_t *info, struct cfi_qry *qry) if (qry->num_erase_regions > 1) { /* reverse geometry if top boot part */ if (info->cfi_version < 0x3131) { - /* CFI < 1.1, guess by device id (M29W320{DT,ET} only) */ - if (info->device_id == 0x22CA || - info->device_id == 0x2256) { + /* CFI < 1.1, guess by device id */ + if (info->device_id == 0x22CA || /* M29W320DT */ + info->device_id == 0x2256 || /* M29W320ET */ + info->device_id == 0x22D7) { /* M29W800DT */ cfi_reverse_geometry(qry); } } -- 2.39.2