diff options
Diffstat (limited to 'spi.c')
| -rw-r--r-- | spi.c | 64 |
1 files changed, 37 insertions, 27 deletions
@@ -32,25 +32,25 @@ void *spibar = NULL; void spi_prettyprint_status_register(struct flashchip *flash); -int spi_command(unsigned int writecnt, unsigned int readcnt, +int spi_send_command(unsigned int writecnt, unsigned int readcnt, const unsigned char *writearr, unsigned char *readarr) { switch (spi_controller) { case SPI_CONTROLLER_IT87XX: - return it8716f_spi_command(writecnt, readcnt, writearr, + return it8716f_spi_send_command(writecnt, readcnt, writearr, readarr); case SPI_CONTROLLER_ICH7: case SPI_CONTROLLER_ICH9: case SPI_CONTROLLER_VIA: - return ich_spi_command(writecnt, readcnt, writearr, readarr); + return ich_spi_send_command(writecnt, readcnt, writearr, readarr); case SPI_CONTROLLER_SB600: - return sb600_spi_command(writecnt, readcnt, writearr, readarr); + return sb600_spi_send_command(writecnt, readcnt, writearr, readarr); case SPI_CONTROLLER_WBSIO: - return wbsio_spi_command(writecnt, readcnt, writearr, readarr); + return wbsio_spi_send_command(writecnt, readcnt, writearr, readarr); case SPI_CONTROLLER_FT2232: - return ft2232_spi_command(writecnt, readcnt, writearr, readarr); + return ft2232_spi_send_command(writecnt, readcnt, writearr, readarr); case SPI_CONTROLLER_DUMMY: - return dummy_spi_command(writecnt, readcnt, writearr, readarr); + return dummy_spi_send_command(writecnt, readcnt, writearr, readarr); default: printf_debug ("%s called, but no SPI chipset/strapping detected\n", @@ -59,13 +59,23 @@ int spi_command(unsigned int writecnt, unsigned int readcnt, return 1; } +int spi_send_multicommand(struct spi_command *spicommands) +{ + int res = 0; + while ((spicommands->writecnt || spicommands->readcnt) && !res) { + res = spi_send_command(spicommands->writecnt, spicommands->readcnt, + spicommands->writearr, spicommands->readarr); + } + return res; +} + static int spi_rdid(unsigned char *readarr, int bytes) { const unsigned char cmd[JEDEC_RDID_OUTSIZE] = { JEDEC_RDID }; int ret; int i; - ret = spi_command(sizeof(cmd), bytes, cmd, readarr); + ret = spi_send_command(sizeof(cmd), bytes, cmd, readarr); if (ret) return ret; printf_debug("RDID returned"); @@ -81,14 +91,14 @@ static int spi_rems(unsigned char *readarr) uint32_t readaddr; int ret; - ret = spi_command(sizeof(cmd), JEDEC_REMS_INSIZE, cmd, readarr); + ret = spi_send_command(sizeof(cmd), JEDEC_REMS_INSIZE, cmd, readarr); if (ret == SPI_INVALID_ADDRESS) { /* Find the lowest even address allowed for reads. */ readaddr = (spi_get_valid_read_addr() + 1) & ~1; cmd[1] = (readaddr >> 16) & 0xff, cmd[2] = (readaddr >> 8) & 0xff, cmd[3] = (readaddr >> 0) & 0xff, - ret = spi_command(sizeof(cmd), JEDEC_REMS_INSIZE, cmd, readarr); + ret = spi_send_command(sizeof(cmd), JEDEC_REMS_INSIZE, cmd, readarr); } if (ret) return ret; @@ -102,14 +112,14 @@ static int spi_res(unsigned char *readarr) uint32_t readaddr; int ret; - ret = spi_command(sizeof(cmd), JEDEC_RES_INSIZE, cmd, readarr); + ret = spi_send_command(sizeof(cmd), JEDEC_RES_INSIZE, cmd, readarr); if (ret == SPI_INVALID_ADDRESS) { /* Find the lowest even address allowed for reads. */ readaddr = (spi_get_valid_read_addr() + 1) & ~1; cmd[1] = (readaddr >> 16) & 0xff, cmd[2] = (readaddr >> 8) & 0xff, cmd[3] = (readaddr >> 0) & 0xff, - ret = spi_command(sizeof(cmd), JEDEC_RES_INSIZE, cmd, readarr); + ret = spi_send_command(sizeof(cmd), JEDEC_RES_INSIZE, cmd, readarr); } if (ret) return ret; @@ -123,7 +133,7 @@ int spi_write_enable(void) int result; /* Send WREN (Write Enable) */ - result = spi_command(sizeof(cmd), 0, cmd, NULL); + result = spi_send_command(sizeof(cmd), 0, cmd, NULL); if (result) printf_debug("%s failed", __func__); @@ -150,7 +160,7 @@ int spi_write_disable(void) const unsigned char cmd[JEDEC_WRDI_OUTSIZE] = { JEDEC_WRDI }; /* Send WRDI (Write Disable) */ - return spi_command(sizeof(cmd), 0, cmd, NULL); + return spi_send_command(sizeof(cmd), 0, cmd, NULL); } static int probe_spi_rdid_generic(struct flashchip *flash, int bytes) @@ -292,7 +302,7 @@ uint8_t spi_read_status_register(void) /* SB600 uses a different way to read status register. */ return sb600_read_status_register(); } else { - ret = spi_command(sizeof(cmd), sizeof(readarr), cmd, readarr); + ret = spi_send_command(sizeof(cmd), sizeof(readarr), cmd, readarr); if (ret) printf_debug("RDSR failed!\n"); } @@ -419,7 +429,7 @@ int spi_chip_erase_60(struct flashchip *flash) if (result) return result; /* Send CE (Chip Erase) */ - result = spi_command(sizeof(cmd), 0, cmd, NULL); + result = spi_send_command(sizeof(cmd), 0, cmd, NULL); if (result) { printf_debug("spi_chip_erase_60 failed sending erase\n"); return result; @@ -451,7 +461,7 @@ int spi_chip_erase_c7(struct flashchip *flash) if (result) return result; /* Send CE (Chip Erase) */ - result = spi_command(sizeof(cmd), 0, cmd, NULL); + result = spi_send_command(sizeof(cmd), 0, cmd, NULL); if (result) { printf_debug("spi_chip_erase_60 failed sending erase\n"); return result; @@ -492,7 +502,7 @@ int spi_block_erase_52(struct flashchip *flash, unsigned int addr, unsigned int if (result) return result; /* Send BE (Block Erase) */ - spi_command(sizeof(cmd), 0, cmd, NULL); + spi_send_command(sizeof(cmd), 0, cmd, NULL); /* Wait until the Write-In-Progress bit is cleared. * This usually takes 100-4000 ms, so wait in 100 ms steps. */ @@ -522,7 +532,7 @@ int spi_block_erase_d8(struct flashchip *flash, unsigned int addr, unsigned int if (result) return result; /* Send BE (Block Erase) */ - spi_command(sizeof(cmd), 0, cmd, NULL); + spi_send_command(sizeof(cmd), 0, cmd, NULL); /* Wait until the Write-In-Progress bit is cleared. * This usually takes 100-4000 ms, so wait in 100 ms steps. */ @@ -572,7 +582,7 @@ int spi_block_erase_20(struct flashchip *flash, unsigned int addr, unsigned int if (result) return result; /* Send SE (Sector Erase) */ - spi_command(sizeof(cmd), 0, cmd, NULL); + spi_send_command(sizeof(cmd), 0, cmd, NULL); /* Wait until the Write-In-Progress bit is cleared. * This usually takes 15-800 ms, so wait in 10 ms steps. */ @@ -609,7 +619,7 @@ int spi_write_status_enable(void) int result; /* Send EWSR (Enable Write Status Register). */ - result = spi_command(sizeof(cmd), JEDEC_EWSR_INSIZE, cmd, NULL); + result = spi_send_command(sizeof(cmd), JEDEC_EWSR_INSIZE, cmd, NULL); if (result) printf_debug("%s failed", __func__); @@ -641,7 +651,7 @@ int spi_write_status_register(int status) { JEDEC_WRSR, (unsigned char)status }; /* Send WRSR (Write Status Register) */ - return spi_command(sizeof(cmd), 0, cmd, NULL); + return spi_send_command(sizeof(cmd), 0, cmd, NULL); } void spi_byte_program(int address, uint8_t byte) @@ -655,7 +665,7 @@ void spi_byte_program(int address, uint8_t byte) }; /* Send Byte-Program */ - spi_command(sizeof(cmd), 0, cmd, NULL); + spi_send_command(sizeof(cmd), 0, cmd, NULL); } int spi_nbyte_program(int address, uint8_t *bytes, int len) @@ -676,7 +686,7 @@ int spi_nbyte_program(int address, uint8_t *bytes, int len) memcpy(&cmd[4], bytes, len); /* Send Byte-Program */ - return spi_command(4 + len, 0, cmd, NULL); + return spi_send_command(4 + len, 0, cmd, NULL); } int spi_disable_blockprotect(void) @@ -712,7 +722,7 @@ int spi_nbyte_read(int address, uint8_t *bytes, int len) }; /* Send Read */ - return spi_command(sizeof(cmd), len, cmd, bytes); + return spi_send_command(sizeof(cmd), len, cmd, bytes); } /* @@ -855,13 +865,13 @@ int spi_aai_write(struct flashchip *flash, uint8_t *buf) result = spi_write_enable(); if (result) return result; - spi_command(6, 0, w, NULL); + spi_send_command(6, 0, w, NULL); while (spi_read_status_register() & JEDEC_RDSR_BIT_WIP) programmer_delay(5); /* SST25VF040B Tbp is max 10us */ while (pos < size) { w[1] = buf[pos++]; w[2] = buf[pos++]; - spi_command(3, 0, w, NULL); + spi_send_command(3, 0, w, NULL); while (spi_read_status_register() & JEDEC_RDSR_BIT_WIP) programmer_delay(5); /* SST25VF040B Tbp is max 10us */ } |
