summaryrefslogtreecommitdiffstats
path: root/drivers/net/sfc/falcon.c
diff options
context:
space:
mode:
authorBen Hutchings <bhutchings@solarflare.com>2009-11-29 15:10:44 +0000
committerDavid S. Miller <davem@davemloft.net>2009-11-29 17:23:54 -0800
commit76884835684411264cda2f15585261eb02183541 (patch)
tree585b42235745acf3bf161838b14682428175e670 /drivers/net/sfc/falcon.c
parentc1c4f453b61463df4df16f7aa5782fc0cfe05b9e (diff)
downloadop-kernel-dev-76884835684411264cda2f15585261eb02183541.zip
op-kernel-dev-76884835684411264cda2f15585261eb02183541.tar.gz
sfc: Extend MTD driver for use with new NICs
In new NICs flash is managed by firmware and we will use high-level operations on partitions rather than direct SPI commands. Add support for multiple MTD partitions per flash device and remove the direct link between MTD and SPI devices. Maintain a list of MTD partitions in struct efx_nic. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/sfc/falcon.c')
-rw-r--r--drivers/net/sfc/falcon.c32
1 files changed, 15 insertions, 17 deletions
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 29d4537..950de84 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -1640,11 +1640,10 @@ static int falcon_spi_wait(struct efx_nic *efx)
}
}
-int falcon_spi_cmd(const struct efx_spi_device *spi,
+int falcon_spi_cmd(struct efx_nic *efx, const struct efx_spi_device *spi,
unsigned int command, int address,
const void *in, void *out, size_t len)
{
- struct efx_nic *efx = spi->efx;
bool addressed = (address >= 0);
bool reading = (out != NULL);
efx_oword_t reg;
@@ -1713,15 +1712,15 @@ efx_spi_munge_command(const struct efx_spi_device *spi,
}
/* Wait up to 10 ms for buffered write completion */
-int falcon_spi_wait_write(const struct efx_spi_device *spi)
+int
+falcon_spi_wait_write(struct efx_nic *efx, const struct efx_spi_device *spi)
{
- struct efx_nic *efx = spi->efx;
unsigned long timeout = jiffies + 1 + DIV_ROUND_UP(HZ, 100);
u8 status;
int rc;
for (;;) {
- rc = falcon_spi_cmd(spi, SPI_RDSR, -1, NULL,
+ rc = falcon_spi_cmd(efx, spi, SPI_RDSR, -1, NULL,
&status, sizeof(status));
if (rc)
return rc;
@@ -1737,8 +1736,8 @@ int falcon_spi_wait_write(const struct efx_spi_device *spi)
}
}
-int falcon_spi_read(const struct efx_spi_device *spi, loff_t start,
- size_t len, size_t *retlen, u8 *buffer)
+int falcon_spi_read(struct efx_nic *efx, const struct efx_spi_device *spi,
+ loff_t start, size_t len, size_t *retlen, u8 *buffer)
{
size_t block_len, pos = 0;
unsigned int command;
@@ -1748,7 +1747,7 @@ int falcon_spi_read(const struct efx_spi_device *spi, loff_t start,
block_len = min(len - pos, FALCON_SPI_MAX_LEN);
command = efx_spi_munge_command(spi, SPI_READ, start + pos);
- rc = falcon_spi_cmd(spi, command, start + pos, NULL,
+ rc = falcon_spi_cmd(efx, spi, command, start + pos, NULL,
buffer + pos, block_len);
if (rc)
break;
@@ -1767,8 +1766,9 @@ int falcon_spi_read(const struct efx_spi_device *spi, loff_t start,
return rc;
}
-int falcon_spi_write(const struct efx_spi_device *spi, loff_t start,
- size_t len, size_t *retlen, const u8 *buffer)
+int
+falcon_spi_write(struct efx_nic *efx, const struct efx_spi_device *spi,
+ loff_t start, size_t len, size_t *retlen, const u8 *buffer)
{
u8 verify_buffer[FALCON_SPI_MAX_LEN];
size_t block_len, pos = 0;
@@ -1776,24 +1776,24 @@ int falcon_spi_write(const struct efx_spi_device *spi, loff_t start,
int rc = 0;
while (pos < len) {
- rc = falcon_spi_cmd(spi, SPI_WREN, -1, NULL, NULL, 0);
+ rc = falcon_spi_cmd(efx, spi, SPI_WREN, -1, NULL, NULL, 0);
if (rc)
break;
block_len = min(len - pos,
falcon_spi_write_limit(spi, start + pos));
command = efx_spi_munge_command(spi, SPI_WRITE, start + pos);
- rc = falcon_spi_cmd(spi, command, start + pos,
+ rc = falcon_spi_cmd(efx, spi, command, start + pos,
buffer + pos, NULL, block_len);
if (rc)
break;
- rc = falcon_spi_wait_write(spi);
+ rc = falcon_spi_wait_write(efx, spi);
if (rc)
break;
command = efx_spi_munge_command(spi, SPI_READ, start + pos);
- rc = falcon_spi_cmd(spi, command, start + pos,
+ rc = falcon_spi_cmd(efx, spi, command, start + pos,
NULL, verify_buffer, block_len);
if (memcmp(verify_buffer, buffer + pos, block_len)) {
rc = -EIO;
@@ -2352,7 +2352,7 @@ falcon_read_nvram(struct efx_nic *efx, struct falcon_nvconfig *nvconfig_out)
nvconfig = region + FALCON_NVCONFIG_OFFSET;
mutex_lock(&efx->spi_lock);
- rc = falcon_spi_read(spi, 0, FALCON_NVCONFIG_END, NULL, region);
+ rc = falcon_spi_read(efx, spi, 0, FALCON_NVCONFIG_END, NULL, region);
mutex_unlock(&efx->spi_lock);
if (rc) {
EFX_ERR(efx, "Failed to read %s\n",
@@ -2710,8 +2710,6 @@ static int falcon_spi_device_init(struct efx_nic *efx,
spi_device->block_size =
1 << SPI_DEV_TYPE_FIELD(device_type,
SPI_DEV_TYPE_BLOCK_SIZE);
-
- spi_device->efx = efx;
} else {
spi_device = NULL;
}
OpenPOWER on IntegriCloud