diff options
Diffstat (limited to 'src/flash/nand')
| -rw-r--r-- | src/flash/nand/core.c | 68 | ||||
| -rw-r--r-- | src/flash/nand/core.h | 2 |
2 files changed, 25 insertions, 45 deletions
diff --git a/src/flash/nand/core.c b/src/flash/nand/core.c index d52cf5df..1056696d 100644 --- a/src/flash/nand/core.c +++ b/src/flash/nand/core.c @@ -768,11 +768,31 @@ int nand_page_command(struct nand_device *nand, uint32_t page, return ERROR_OK; } +int nand_read_data_page(struct nand_device *nand, uint8_t *data, uint32_t size) +{ + int retval = ERROR_NAND_NO_BUFFER; + + if (nand->controller->read_block_data != NULL) + retval = (nand->controller->read_block_data)(nand, data, size); + + if (ERROR_NAND_NO_BUFFER == retval) { + uint32_t i; + int incr = (nand->device->options & NAND_BUSWIDTH_16) ? 2 : 1; + + retval = ERROR_OK; + for (i = 0; retval == ERROR_OK && i < size; i += incr) { + retval = nand->controller->read_data(nand, data); + data += incr; + } + } + + return retval; +} + int nand_read_page_raw(struct nand_device *nand, uint32_t page, uint8_t *data, uint32_t data_size, uint8_t *oob, uint32_t oob_size) { - uint32_t i; int retval; retval = nand_page_command(nand, page, NAND_CMD_READ0, !data); @@ -780,52 +800,10 @@ int nand_read_page_raw(struct nand_device *nand, uint32_t page, return retval; if (data) - { - if (nand->controller->read_block_data != NULL) - (nand->controller->read_block_data)(nand, data, data_size); - else - { - for (i = 0; i < data_size;) - { - if (nand->device->options & NAND_BUSWIDTH_16) - { - nand->controller->read_data(nand, data); - data += 2; - i += 2; - } - else - { - nand->controller->read_data(nand, data); - data += 1; - i += 1; - } - } - } - } + nand_read_data_page(nand, data, data_size); if (oob) - { - if (nand->controller->read_block_data != NULL) - (nand->controller->read_block_data)(nand, oob, oob_size); - else - { - for (i = 0; i < oob_size;) - { - if (nand->device->options & NAND_BUSWIDTH_16) - { - nand->controller->read_data(nand, oob); - oob += 2; - i += 2; - } - else - { - nand->controller->read_data(nand, oob); - oob += 1; - i += 1; - } - } - } - } + nand_read_data_page(nand, oob, oob_size); return ERROR_OK; } diff --git a/src/flash/nand/core.h b/src/flash/nand/core.h index b8dc01c7..990114ad 100644 --- a/src/flash/nand/core.h +++ b/src/flash/nand/core.h @@ -211,6 +211,8 @@ struct nand_device *get_nand_device_by_num(int num); int nand_page_command(struct nand_device *nand, uint32_t page, uint8_t cmd, bool oob_only); +int nand_read_data_page(struct nand_device *nand, uint8_t *data, uint32_t size); + int nand_read_page_raw(struct nand_device *nand, uint32_t page, uint8_t *data, uint32_t data_size, uint8_t *oob, uint32_t oob_size); int nand_write_page_raw(struct nand_device *nand, uint32_t page, |