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[PATCH 3/3] MTD: bcm63xxpart: use nvram for PSI size

To: linux-mtd@lists.infradead.org
Subject: [PATCH 3/3] MTD: bcm63xxpart: use nvram for PSI size
From: Jonas Gorski <jogo@openwrt.org>
Date: Sat, 23 Mar 2013 14:07:49 +0100
Cc: Artem Bityutskiy <dedekind1@gmail.com>, David Woodhouse <dwmw2@infradead.org>, Maxime Bizon <mbizon@freebox.fr>, Florian Fainelli <florian@openwrt.org>, Kevin Cernekee <cernekee@gmail.com>, linux-mips@linux-mips.org
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Read out the SPI size from nvram instead of defaulting to 64K - some
vendors actually use values larger than the "max" value of 64.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
---
 drivers/mtd/bcm63xxpart.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/bcm63xxpart.c b/drivers/mtd/bcm63xxpart.c
index fc3d7d0..5c81390 100644
--- a/drivers/mtd/bcm63xxpart.c
+++ b/drivers/mtd/bcm63xxpart.c
@@ -4,7 +4,7 @@
  * Copyright © 2006-2008  Florian Fainelli <florian@openwrt.org>
  *                       Mike Albon <malbon@openwrt.org>
  * Copyright © 2009-2010  Daniel Dickinson <openwrt@cshore.neomailbox.net>
- * Copyright © 2011-2012  Jonas Gorski <jonas.gorski@gmail.com>
+ * Copyright © 2011-2013  Jonas Gorski <jonas.gorski@gmail.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -33,6 +33,7 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 
+#include <asm/mach-bcm63xx/bcm63xx_nvram.h>
 #include <asm/mach-bcm63xx/bcm963xx_tag.h>
 #include <asm/mach-bcm63xx/board_bcm963xx.h>
 
@@ -91,7 +92,8 @@ static int bcm63xx_parse_cfe_partitions(struct mtd_info 
*master,
                              BCM63XX_CFE_BLOCK_SIZE);
 
        cfelen = cfe_erasesize;
-       nvramlen = cfe_erasesize;
+       nvramlen = bcm63xx_nvram_get_psi_size() * SZ_1K;
+       nvramlen = roundup(nvramlen, cfe_erasesize);
 
        /* Allocate memory for buffer */
        buf = vmalloc(sizeof(struct bcm_tag));
-- 
1.7.10.4


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