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From a53ed08e1f8ee2a235213e802f3d5bb3342adaf3 Mon Sep 17 00:00:00 2001
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From: Aurelien Jarno <aurelien@aurel32.net>
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Date: Mon, 3 Sep 2012 22:47:03 +0200
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Subject: [PATCH] pflash_cfi01: fix vendor specific extended query
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pflash_cfi01 announces a version number of 1.1, which implies
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"Protection Register Information" and "Burst Read information"
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sections, which are not provided.
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Decrease the version number to 1.0 so that only the "Protection
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Register Information" section is needed.
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Set the number of protection fields (0x3f) to 0x01, as 0x00 means 256
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protections field, which makes the CFI table bigger than the current
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implementation, causing some kernels to fail to read it.
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Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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(cherry picked from commit 262e1eaafabf32d33a9fa0b03b3c8ea426c5ae1b)
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Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
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---
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hw/pflash_cfi01.c | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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diff --git a/hw/pflash_cfi01.c b/hw/pflash_cfi01.c
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index d1c7423..d56b51a 100644
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--- a/hw/pflash_cfi01.c
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+++ b/hw/pflash_cfi01.c
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@@ -711,7 +711,7 @@ pflash_t *pflash_cfi01_register(target_phys_addr_t base,
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pfl->cfi_table[0x33] = 'I';
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pfl->cfi_table[0x34] = '1';
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- pfl->cfi_table[0x35] = '1';
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+ pfl->cfi_table[0x35] = '0';
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pfl->cfi_table[0x36] = 0x00;
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pfl->cfi_table[0x37] = 0x00;
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@@ -723,6 +723,8 @@ pflash_t *pflash_cfi01_register(target_phys_addr_t base,
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pfl->cfi_table[0x3b] = 0x00;
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pfl->cfi_table[0x3c] = 0x00;
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+ pfl->cfi_table[0x3f] = 0x01; /* Number of protection fields */
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+
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return pfl;
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}
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--
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1.7.12.1
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