linux-kernel - [PATCH 2/2] firmware: bcm47xx_nvram: support small (0x6000 B) NVRAM partitions

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Message-Id: <20180408205733.9026-2-zajec5@gmail.com>
Date:   Sun,  8 Apr 2018 22:57:33 +0200
From:   Rafał Miłecki <zajec5@...il.com>
To:     James Hogan <jhogan@...nel.org>, Ralf Baechle <ralf@...ux-mips.org>
Cc:     linux-mips@...ux-mips.org, Hauke Mehrtens <hauke@...ke-m.de>,
        linux-kernel@...r.kernel.org,
        Rafał Miłecki <rafal@...ecki.pl>
Subject: [PATCH 2/2] firmware: bcm47xx_nvram: support small (0x6000 B) NVRAM partitions

From: Rafał Miłecki <rafal@...ecki.pl>

Some old devices with 4 MiB flashes were using 0x1000 block size and
could use smaller (0x6000 bytes) flash partition for storing NVRAM
content. This adds support for reading NVRAM on Netgear WNR1000 V3.

Signed-off-by: Rafał Miłecki <rafal@...ecki.pl>
---
 drivers/firmware/broadcom/bcm47xx_nvram.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/broadcom/bcm47xx_nvram.c b/drivers/firmware/broadcom/bcm47xx_nvram.c
index 0b631e5b5b84..d25f080fcb0d 100644
--- a/drivers/firmware/broadcom/bcm47xx_nvram.c
+++ b/drivers/firmware/broadcom/bcm47xx_nvram.c
@@ -36,7 +36,7 @@ struct nvram_header {
 
 static char nvram_buf[NVRAM_SPACE];
 static size_t nvram_len;
-static const u32 nvram_sizes[] = {0x8000, 0xF000, 0x10000};
+static const u32 nvram_sizes[] = {0x6000, 0x8000, 0xF000, 0x10000};
 
 static u32 find_nvram_size(void __iomem *end)
 {
-- 
2.11.0