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49 lines
1.7 KiB
49 lines
1.7 KiB
From 465f1b3ff24dbf3bec43dce344a7bc2640e05ffc Mon Sep 17 00:00:00 2001
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From: Jonas Gorski <jonas.gorski@gmail.com>
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Date: Tue, 8 May 2012 09:53:07 +0200
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Subject: [PATCH 22/79] MTD: bcm63xxpart: make fixed part length calculation
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more generic
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The CFE does not use 4K sectors even if the flash supports it, so
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for the fixed partitions like CFE itself or NVRAM the erase block
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size is always 64k or bigger.
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Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
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---
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drivers/mtd/bcm63xxpart.c | 11 +++++++----
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1 file changed, 7 insertions(+), 4 deletions(-)
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--- a/drivers/mtd/bcm63xxpart.c
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+++ b/drivers/mtd/bcm63xxpart.c
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@@ -37,8 +37,7 @@
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#define BCM63XX_EXTENDED_SIZE 0xBFC00000 /* Extended flash address */
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-#define BCM63XX_MIN_CFE_SIZE 0x10000 /* always at least 64KiB */
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-#define BCM63XX_MIN_NVRAM_SIZE 0x10000 /* always at least 64KiB */
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+#define BCM63XX_CFE_BLOCK_SIZE 0x10000 /* always at least 64KiB */
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#define BCM63XX_CFE_MAGIC_OFFSET 0x4e0
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@@ -79,6 +78,7 @@ static int bcm63xx_parse_cfe_partitions(
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unsigned int rootfsaddr, kerneladdr, spareaddr;
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unsigned int rootfslen, kernellen, sparelen, totallen;
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unsigned int cfelen, nvramlen;
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+ unsigned int cfe_erasesize;
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int i;
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u32 computed_crc;
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bool rootfs_first = false;
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@@ -86,8 +86,11 @@ static int bcm63xx_parse_cfe_partitions(
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if (bcm63xx_detect_cfe(master))
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return -EINVAL;
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- cfelen = max_t(uint32_t, master->erasesize, BCM63XX_MIN_CFE_SIZE);
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- nvramlen = max_t(uint32_t, master->erasesize, BCM63XX_MIN_NVRAM_SIZE);
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+ cfe_erasesize = max_t(uint32_t, master->erasesize,
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+ BCM63XX_CFE_BLOCK_SIZE);
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+
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+ cfelen = cfe_erasesize;
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+ nvramlen = cfe_erasesize;
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/* Allocate memory for buffer */
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buf = vmalloc(sizeof(struct bcm_tag));
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