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authoroharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60>2009-09-09 16:11:33 +0000
committeroharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60>2009-09-09 16:11:33 +0000
commit7b5ddb4a58f31cc63f626b7ffb41c0b958540026 (patch)
tree00a7a0005b981a96b09f31ef909cdf31ef6be410
parent983f5a1ae932d40109031cfec8162f820cfc6f39 (diff)
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Rolf Meeser <rolfm_9dq@yahoo.de>
This patch adds target algorithm support for those flash devices that do not support DQ5 polling. So far they could only be programmed with host algorithm, but this was way too slow. git-svn-id: svn://svn.berlios.de/openocd/trunk@2682 b42882b7-edfa-0310-969c-e2dbd0fdcd60
-rw-r--r--src/flash/cfi.c45
-rw-r--r--src/flash/non_cfi.c5
2 files changed, 44 insertions, 6 deletions
diff --git a/src/flash/cfi.c b/src/flash/cfi.c
index 46e5528d..66b94c96 100644
--- a/src/flash/cfi.c
+++ b/src/flash/cfi.c
@@ -1384,6 +1384,31 @@ static int cfi_spansion_write_block(struct flash_bank_s *bank, uint8_t *buffer,
0xeafffffe /* b 81ac <sp_16_done> */
};
+ static const uint32_t word_16_code_dq7only[] = {
+ /* <sp_16_code>: */
+ 0xe0d050b2, /* ldrh r5, [r0], #2 */
+ 0xe1c890b0, /* strh r9, [r8] */
+ 0xe1cab0b0, /* strh r11, [r10] */
+ 0xe1c830b0, /* strh r3, [r8] */
+ 0xe1c150b0, /* strh r5, [r1] */
+ 0xe1a00000, /* nop (mov r0,r0) */
+ /* */
+ /* <sp_16_busy>: */
+ 0xe1d160b0, /* ldrh r6, [r1] */
+ 0xe0257006, /* eor r7, r5, r6 */
+ 0xe2177080, /* ands r7, #0x80 */
+ 0x1afffffb, /* bne 8168 <sp_16_busy> */
+ /* */
+ 0xe2522001, /* subs r2, r2, #1 ; 0x1 */
+ 0x03a05080, /* moveq r5, #128 ; 0x80 */
+ 0x0a000001, /* beq 81ac <sp_16_done> */
+ 0xe2811002, /* add r1, r1, #2 ; 0x2 */
+ 0xeafffff0, /* b 8158 <sp_16_code> */
+ /* */
+ /* 000081ac <sp_16_done>: */
+ 0xeafffffe /* b 81ac <sp_16_done> */
+ };
+
static const uint32_t word_8_code[] = {
/* 000081b0 <sp_16_code_end>: */
0xe4d05001, /* ldrb r5, [r0], #1 */
@@ -1423,10 +1448,10 @@ static int cfi_spansion_write_block(struct flash_bank_s *bank, uint8_t *buffer,
armv4_5_info.core_state = ARMV4_5_STATE_ARM;
/* flash write code */
+ int target_code_size;
if (!cfi_info->write_algorithm)
{
uint8_t *target_code;
- int target_code_size;
const uint32_t *src;
/* convert bus-width dependent algorithm code to correct endiannes */
@@ -1437,8 +1462,18 @@ static int cfi_spansion_write_block(struct flash_bank_s *bank, uint8_t *buffer,
target_code_size = sizeof(word_8_code);
break;
case 2:
- src = word_16_code;
- target_code_size = sizeof(word_16_code);
+ /* Check for DQ5 support */
+ if( cfi_info->status_poll_mask & (1 << 5) )
+ {
+ src = word_16_code;
+ target_code_size = sizeof(word_16_code);
+ }
+ else
+ {
+ /* No DQ5 support. Use DQ7 DATA# polling only. */
+ src = word_16_code_dq7only;
+ target_code_size = sizeof(word_16_code_dq7only);
+ }
break;
case 4:
src = word_32_code;
@@ -1515,7 +1550,7 @@ static int cfi_spansion_write_block(struct flash_bank_s *bank, uint8_t *buffer,
retval = target_run_algorithm(target, 0, NULL, 10, reg_params,
cfi_info->write_algorithm->address,
- cfi_info->write_algorithm->address + ((24 * 4) - 4),
+ cfi_info->write_algorithm->address + ((target_code_size) - 4),
10000, &armv4_5_info);
status = buf_get_u32(reg_params[5].value, 0, 32);
@@ -1532,7 +1567,7 @@ static int cfi_spansion_write_block(struct flash_bank_s *bank, uint8_t *buffer,
count -= thisrun_count;
}
- target_free_working_area(target, source);
+ target_free_all_working_areas(target);
destroy_reg_param(&reg_params[0]);
destroy_reg_param(&reg_params[1]);
diff --git a/src/flash/non_cfi.c b/src/flash/non_cfi.c
index 90de7879..34acd2a4 100644
--- a/src/flash/non_cfi.c
+++ b/src/flash/non_cfi.c
@@ -140,7 +140,10 @@ static non_cfi_t non_cfi_flashes[] = {
/* SST 39VF* do not support DQ5 status polling - this currently is
only supported by the host algorithm, not by the target code using
- the work area. */
+ the work area.
+ Only true for 8-bit and 32-bit wide memories. 16-bit wide memories
+ without DQ5 status polling are supported by the target code.
+ */
{
.mfr = CFI_MFR_SST,
.id = 0x2782, /* SST39xF160 */