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From: 张忠山 <zzs213@126.com>
To: barebox@lists.infradead.org
Subject: [PATCH] read cfi device id according the bus width
Date: Thu, 22 Nov 2012 14:01:36 +0800	[thread overview]
Message-ID: <1353564096-18861-1-git-send-email-zzs213@126.com> (raw)

Signed-off-by: 张忠山 <zzs213@126.com>
---
 drivers/nor/cfi_flash_amd.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/nor/cfi_flash_amd.c b/drivers/nor/cfi_flash_amd.c
index 45c59b9..3ab4be0 100644
--- a/drivers/nor/cfi_flash_amd.c
+++ b/drivers/nor/cfi_flash_amd.c
@@ -62,8 +62,11 @@ static void amd_read_jedec_ids (struct flash_info *info)
 	udelay(1000); /* some flash are slow to respond */
 
 	info->manufacturer_id = jedec_read_mfr(info);
-	info->device_id = flash_read_uchar (info,
-					FLASH_OFFSET_DEVICE_ID);
+	if(info->chipwidth == FLASH_CFI_BY16)
+		info->device_id = flash_read16(flash_make_addr(info, 0, FLASH_OFFSET_DEVICE_ID));
+	else
+		info->device_id = flash_read_uchar (info,
+						FLASH_OFFSET_DEVICE_ID);
 	if (info->device_id == 0x7E) {
 		/* AMD 3-byte (expanded) device ids */
 		info->device_id2 = flash_read_uchar (info,
-- 
1.7.4.4



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             reply	other threads:[~2012-11-22  6:00 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-22  6:01 张忠山 [this message]
2012-11-22  6:14 ` Jean-Christophe PLAGNIOL-VILLARD
2012-11-22  6:26   ` 张忠山
2012-11-22  6:38     ` Jean-Christophe PLAGNIOL-VILLARD
  -- strict thread matches above, loose matches on Subject: below --
2012-11-22  6:49 张忠山
2012-11-22  7:25 ` Jean-Christophe PLAGNIOL-VILLARD
2012-11-22  8:06   ` 张忠山
2012-11-22  1:48 张忠山
2012-11-22  5:46 ` Jean-Christophe PLAGNIOL-VILLARD

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