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2KB/s, by using the algorithm more. 

Change-Id: If55dcf432f9243355ed22eb8d1559ecdbca3c5c9
__archive__
Tim Newsome 2016-11-17 14:33:10 -08:00
parent 8aef60fafa
commit 1551916027
1 changed files with 43 additions and 8 deletions
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51
src/flash/nor/fespi.c
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@ -531,6 +531,16 @@ unsigned as_compile(struct algorithm_steps *as, uint8_t *target,
offset += size + 2;
break;
}
case STEP_WRITE_REG:
assert(offset + 3 < target_size);
memcpy(target + offset, as->steps[s], 3);
offset += 3;
break;
case STEP_TXWM_WAIT:
assert(offset + 1 < target_size);
memcpy(target + offset, as->steps[s], 1);
offset += 1;
break;
default:
assert(0);
}
@ -567,6 +577,31 @@ void as_add_tx(struct algorithm_steps *as, unsigned count, const uint8_t *data)
}
}
void as_add_tx1(struct algorithm_steps *as, uint8_t byte)
{
uint8_t data[1];
data[0] = byte;
as_add_tx(as, 1, data);
}
void as_add_write_reg(struct algorithm_steps *as, uint8_t offset, uint8_t data)
{
assert(as->used < as->size);
as->steps[as->used] = malloc(3);
as->steps[as->used][0] = STEP_WRITE_REG;
as->steps[as->used][1] = offset;
as->steps[as->used][2] = data;
as->used++;
}
void as_add_txwm_wait(struct algorithm_steps *as)
{
assert(as->used < as->size);
as->steps[as->used] = malloc(1);
as->steps[as->used][0] = STEP_TXWM_WAIT;
as->used++;
}
/* This should write something less than or equal to a page.*/
static int fespi_write_buffer(struct flash_bank *bank, const uint8_t *buffer,
uint32_t chip_offset, uint32_t len,
@ -598,12 +633,12 @@ static int fespi_write_buffer(struct flash_bank *bank, const uint8_t *buffer,
data_wa_size /= 2;
}
fespi_tx(bank, SPIFLASH_WRITE_ENABLE);
fespi_txwm_wait(bank);
FESPI_WRITE_REG(FESPI_REG_CSMODE, FESPI_CSMODE_HOLD);
struct algorithm_steps *as = as_new(100);
as_add_tx1(as, SPIFLASH_WRITE_ENABLE);
as_add_txwm_wait(as);
as_add_write_reg(as, FESPI_REG_CSMODE, FESPI_CSMODE_HOLD);
uint8_t setup[] = {
SPIFLASH_PAGE_PROGRAM,
chip_offset >> 16,
@ -611,7 +646,10 @@ static int fespi_write_buffer(struct flash_bank *bank, const uint8_t *buffer,
chip_offset,
};
as_add_tx(as, sizeof(setup), setup);
as_add_tx(as, len, buffer);
as_add_txwm_wait(as);
as_add_write_reg(as, FESPI_REG_CSMODE, FESPI_CSMODE_AUTO);
uint8_t *data_buf = malloc(data_wa->size);
@ -642,9 +680,6 @@ static int fespi_write_buffer(struct flash_bank *bank, const uint8_t *buffer,
target_free_working_area(target, data_wa);
fespi_txwm_wait(bank);
FESPI_WRITE_REG(FESPI_REG_CSMODE, FESPI_CSMODE_AUTO);
return ERROR_OK;
error: