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Date:	Mon, 6 Aug 2007 01:20:44 +0200
From:	Aurelien Jarno <aurelien@...el32.net>
To:	Michael Buesch <mb@...sch.de>, netdev@...r.kernel.org
Cc:	Felix Fietkau <nbd@...nwrt.org>
Subject: [PATCH 3/4][SSB] MIPS core flash driver

The patch below against 2.6.23-rc1-mm2 fixes the size of the flash 
window and detect the width of the flash bus (8 or 16 bits).

It originally comes from the OpenWrt patches.

Cc: Felix Fietkau <nbd@...nwrt.org>
Signed-off-by: Aurelien Jarno <aurelien@...el32.net>

--- a/drivers/ssb/driver_mipscore.c	
+++ b/drivers/ssb/driver_mipscore.c	
@@ -186,12 +186,16 @@
 {
 	struct ssb_bus *bus = mcore->dev->bus;
 
+	mcore->flash_buswidth = 2;
 	if (bus->chipco.dev) {
 		mcore->flash_window = 0x1c000000;
-		mcore->flash_window_size = 0x800000;
+		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 = 0x400000;
+		mcore->flash_window_size = 0x00400000;
 	}
 }
 
--- a/include/linux/ssb/ssb_driver_mips.h
+++ b/include/linux/ssb/ssb_driver_mips.h
@@ -20,6 +20,7 @@
 	int nr_serial_ports;
 	struct ssb_serial_port serial_ports[4];
 
+	int flash_buswidth;
 	u32 flash_window;
 	u32 flash_window_size;
 };

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@...ian.org         | aurelien@...el32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net
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