diff options
| author | Ben Hutchings <bhutchings@solarflare.com> | 2008-11-04 20:34:28 +0000 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-11-06 00:49:57 -0500 |
| commit | f41507245ef8b079685aba8da5b5b2b5e87e70bc (patch) | |
| tree | be8c8aee6a6fc3c69d946dcd3fe24306bf89775e /drivers/net/sfc/falcon.c | |
| parent | 0a95f56323ce93dac354c1b2d54bf959a985cf7d (diff) | |
sfc: Expose flash region storing boot code as MTD
The boot code that appears as a PCI expansion ROM on the SFC4000 is
stored in flash. Expose this as a standard MTD device to allow for
in-place upgrades.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/net/sfc/falcon.c')
| -rw-r--r-- | drivers/net/sfc/falcon.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c index 3f74ceff6a2..71e0bed6061 100644 --- a/drivers/net/sfc/falcon.c +++ b/drivers/net/sfc/falcon.c @@ -1628,9 +1628,9 @@ static int falcon_spi_wait(struct efx_nic *efx) } } -static int falcon_spi_cmd(const struct efx_spi_device *spi, - unsigned int command, int address, - const void *in, void *out, unsigned int len) +int falcon_spi_cmd(const struct efx_spi_device *spi, + unsigned int command, int address, + const void *in, void *out, unsigned int len) { struct efx_nic *efx = spi->efx; bool addressed = (address >= 0); @@ -1641,6 +1641,7 @@ static int falcon_spi_cmd(const struct efx_spi_device *spi, /* Input validation */ if (len > FALCON_SPI_MAX_LEN) return -EINVAL; + BUG_ON(!mutex_is_locked(&efx->spi_lock)); /* Check SPI not currently being accessed */ rc = falcon_spi_wait(efx); @@ -1699,8 +1700,7 @@ efx_spi_munge_command(const struct efx_spi_device *spi, return command | (((address >> 8) & spi->munge_address) << 3); } - -static int falcon_spi_fast_wait(const struct efx_spi_device *spi) +int falcon_spi_fast_wait(const struct efx_spi_device *spi) { u8 status; int i, rc; @@ -2259,7 +2259,9 @@ int falcon_read_nvram(struct efx_nic *efx, struct falcon_nvconfig *nvconfig_out) nvconfig = region + NVCONFIG_OFFSET; spi = efx->spi_flash ? efx->spi_flash : efx->spi_eeprom; + mutex_lock(&efx->spi_lock); rc = falcon_spi_read(spi, 0, FALCON_NVCONFIG_END, NULL, region); + mutex_unlock(&efx->spi_lock); if (rc) { EFX_ERR(efx, "Failed to read %s\n", efx->spi_flash ? "flash" : "EEPROM"); @@ -2555,6 +2557,11 @@ static int falcon_spi_device_init(struct efx_nic *efx, SPI_DEV_TYPE_FIELD(device_type, SPI_DEV_TYPE_ADDR_LEN); spi_device->munge_address = (spi_device->size == 1 << 9 && spi_device->addr_len == 1); + spi_device->erase_command = + SPI_DEV_TYPE_FIELD(device_type, SPI_DEV_TYPE_ERASE_CMD); + spi_device->erase_size = + 1 << SPI_DEV_TYPE_FIELD(device_type, + SPI_DEV_TYPE_ERASE_SIZE); spi_device->block_size = 1 << SPI_DEV_TYPE_FIELD(device_type, SPI_DEV_TYPE_BLOCK_SIZE); |