From aaa6dd927fce6ffe081046347280665ebc1f5782 Mon Sep 17 00:00:00 2001
From: kc8apf <kc8apf@b42882b7-edfa-0310-969c-e2dbd0fdcd60>
Date: Fri, 22 May 2009 17:49:28 +0000
Subject: Author: Raúl Sánchez Siles <rsanchezs@infoglobal.es> - Fix
multi-byte reads on x16 devices used as x8
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git-svn-id: svn://svn.berlios.de/openocd/trunk@1886 b42882b7-edfa-0310-969c-e2dbd0fdcd60
---
src/flash/cfi.c | 22 ++++++++++++++++++++--
1 file changed, 20 insertions(+), 2 deletions(-)
(limited to 'src/flash')
diff --git a/src/flash/cfi.c b/src/flash/cfi.c
index 7ae58f10..dca9bef5 100644
--- a/src/flash/cfi.c
+++ b/src/flash/cfi.c
@@ -204,9 +204,18 @@ static u8 cfi_get_u8(flash_bank_t *bank, int sector, u32 offset)
static u16 cfi_query_u16(flash_bank_t *bank, int sector, u32 offset)
{
target_t *target = bank->target;
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;
u8 data[CFI_MAX_BUS_WIDTH * 2];
- target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 2, data);
+ if(cfi_info->x16_as_x8)
+ {
+ u8 i;
+ for(i=0;i<2;i++)
+ target->type->read_memory(target, flash_address(bank, sector, offset+i), bank->bus_width, 1,
+ &data[i*bank->bus_width] );
+ }
+ else
+ target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 2, data);
if (bank->target->endianness == TARGET_LITTLE_ENDIAN)
return data[0] | data[bank->bus_width] << 8;
@@ -217,9 +226,18 @@ static u16 cfi_query_u16(flash_bank_t *bank, int sector, u32 offset)
static u32 cfi_query_u32(flash_bank_t *bank, int sector, u32 offset)
{
target_t *target = bank->target;
+ cfi_flash_bank_t *cfi_info = bank->driver_priv;
u8 data[CFI_MAX_BUS_WIDTH * 4];
- target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 4, data);
+ if(cfi_info->x16_as_x8)
+ {
+ u8 i;
+ for(i=0;i<4;i++)
+ target->type->read_memory(target, flash_address(bank, sector, offset+i), bank->bus_width, 1,
+ &data[i*bank->bus_width] );
+ }
+ else
+ target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 4, data);
if (bank->target->endianness == TARGET_LITTLE_ENDIAN)
return data[0] | data[bank->bus_width] << 8 | data[bank->bus_width * 2] << 16 | data[bank->bus_width * 3] << 24;
--
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