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brcm47xx: fix flash detection on chipcommon less devices.

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This closes #9906
Thank you for the report Kim

SVN-Revision: 27967
This commit is contained in:
Hauke Mehrtens 2011-08-12 16:37:22 +00:00
parent aab33e2e9a
commit 77218b0338
1 changed files with 28 additions and 22 deletions
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50
target/linux/brcm47xx/patches-3.0/0014-ssb-move-flash-to-chipcommon.patch
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@ -1,4 +1,4 @@
From be495ba9c365a31cf6a9fa0f67df9a9a9e0f1a1f Mon Sep 17 00:00:00 2001
From e8afde87ecf56beff67c7d5371cabaa4fc018541 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 23 Jul 2011 23:57:06 +0200
Subject: [PATCH 14/26] ssb: move flash to chipcommon
@ -8,10 +8,10 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
arch/mips/bcm47xx/nvram.c | 8 +++---
arch/mips/bcm47xx/wgt634u.c | 8 +++---
drivers/ssb/driver_mipscore.c | 31 +++++++++++++++++++---------
include/linux/ssb/ssb_driver_chipcommon.h | 18 ++++++++++++++++
drivers/ssb/driver_mipscore.c | 36 +++++++++++++++++++++-------
include/linux/ssb/ssb_driver_chipcommon.h | 18 ++++++++++++++
include/linux/ssb/ssb_driver_mips.h | 4 ---
5 files changed, 47 insertions(+), 22 deletions(-)
5 files changed, 53 insertions(+), 21 deletions(-)
--- a/arch/mips/bcm47xx/nvram.c
+++ b/arch/mips/bcm47xx/nvram.c
@ -56,7 +56,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
ARRAY_SIZE(wgt634u_devices));
--- a/drivers/ssb/driver_mipscore.c
+++ b/drivers/ssb/driver_mipscore.c
@@ -190,16 +190,27 @@ static void ssb_mips_flash_detect(struct
@@ -190,16 +190,34 @@ static void ssb_mips_flash_detect(struct
{
struct ssb_bus *bus = mcore->dev->bus;
@ -64,12 +64,16 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
- if (bus->chipco.dev) {
- mcore->flash_window = 0x1c000000;
- mcore->flash_window_size = 0x02000000;
- if ((ssb_read32(bus->chipco.dev, SSB_CHIPCO_FLASH_CFG)
- & SSB_CHIPCO_CFG_DS16) == 0)
- mcore->flash_buswidth = 1;
- } else {
- mcore->flash_window = 0x1fc00000;
- mcore->flash_window_size = 0x00400000;
+ /* When there is no chipcommon on the bus there is 4MB flash */
+ if (!bus->chipco.dev) {
+ pr_info("found parallel flash.\n");
+ bus->chipco.flash_type = SSB_PFLASH;
+ bus->chipco.pflash.window = SSB_FLASH1;
+ bus->chipco.pflash.window_size = SSB_FLASH1_SZ;
+ bus->chipco.pflash.buswidth = 2;
+ return;
+ }
+
+ switch (bus->chipco.capabilities & SSB_CHIPCO_CAP_FLASHT) {
+ case SSB_CHIPCO_FLASHT_STSER:
+ case SSB_CHIPCO_FLASHT_ATSER:
@ -78,17 +82,19 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+ case SSB_CHIPCO_FLASHT_PARA:
+ pr_info("found parallel flash.\n");
+ bus->chipco.flash_type = SSB_PFLASH;
+ bus->chipco.pflash.buswidth = 2;
+ if (bus->chipco.dev) {
+ bus->chipco.pflash.window = 0x1c000000;
+ bus->chipco.pflash.window_size = 0x02000000;
+ if ((ssb_read32(bus->chipco.dev, SSB_CHIPCO_FLASH_CFG)
+ & SSB_CHIPCO_CFG_DS16) == 0)
+ bus->chipco.pflash.buswidth = 1;
+ } else {
+ bus->chipco.pflash.window = 0x1fc00000;
+ bus->chipco.pflash.window_size = 0x00400000;
+ }
+ bus->chipco.pflash.window = SSB_FLASH2;
+ bus->chipco.pflash.window_size = SSB_FLASH2_SZ;
if ((ssb_read32(bus->chipco.dev, SSB_CHIPCO_FLASH_CFG)
- & SSB_CHIPCO_CFG_DS16) == 0)
- mcore->flash_buswidth = 1;
- } else {
- mcore->flash_window = 0x1fc00000;
- mcore->flash_window_size = 0x00400000;
+ & SSB_CHIPCO_CFG_DS16) == 0)
+ bus->chipco.pflash.buswidth = 1;
+ else
+ bus->chipco.pflash.buswidth = 2;
+ break;
+ default:
+ pr_err("flash not supported.\n");
}