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path: root/target/linux/ar71xx/files/drivers/spi/spi-rb4xx-cpld.c
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Diffstat (limited to 'target/linux/ar71xx/files/drivers/spi/spi-rb4xx-cpld.c')
-rw-r--r--target/linux/ar71xx/files/drivers/spi/spi-rb4xx-cpld.c105
1 files changed, 3 insertions, 102 deletions
diff --git a/target/linux/ar71xx/files/drivers/spi/spi-rb4xx-cpld.c b/target/linux/ar71xx/files/drivers/spi/spi-rb4xx-cpld.c
index a8d5282..f6ec350 100644
--- a/target/linux/ar71xx/files/drivers/spi/spi-rb4xx-cpld.c
+++ b/target/linux/ar71xx/files/drivers/spi/spi-rb4xx-cpld.c
@@ -131,73 +131,7 @@ int rb4xx_cpld_change_cfg(unsigned mask, unsigned value)
}
EXPORT_SYMBOL_GPL(rb4xx_cpld_change_cfg);
-int rb4xx_cpld_read_from(unsigned addr, unsigned char *rx_buf,
- const unsigned char *verify_buf, unsigned count)
-{
- const unsigned char cmd[5] = {
- CPLD_CMD_READ_FAST,
- (addr >> 16) & 0xff,
- (addr >> 8) & 0xff,
- addr & 0xff,
- 0
- };
- struct spi_transfer t[2] = {
- {
- .tx_buf = &cmd,
- .len = 5,
- },
- {
- .tx_buf = verify_buf,
- .rx_buf = rx_buf,
- .len = count,
- .verify = (verify_buf != NULL),
- },
- };
- struct spi_message m;
-
- if (rb4xx_cpld == NULL)
- return -ENODEV;
-
- spi_message_init(&m);
- m.fast_read = 1;
- spi_message_add_tail(&t[0], &m);
- spi_message_add_tail(&t[1], &m);
- return spi_sync(rb4xx_cpld->spi, &m);
-}
-EXPORT_SYMBOL_GPL(rb4xx_cpld_read_from);
-
-#if 0
-int rb4xx_cpld_read(unsigned char *buf, unsigned char *verify_buf,
- unsigned count)
-{
- struct spi_transfer t[2];
- struct spi_message m;
- unsigned char cmd[2];
-
- if (rb4xx_cpld == NULL)
- return -ENODEV;
-
- spi_message_init(&m);
- memset(&t, 0, sizeof(t));
-
- /* send command */
- t[0].tx_buf = cmd;
- t[0].len = sizeof(cmd);
- spi_message_add_tail(&t[0], &m);
-
- cmd[0] = CPLD_CMD_READ_NAND;
- cmd[1] = 0;
-
- /* read data */
- t[1].rx_buf = buf;
- t[1].len = count;
- spi_message_add_tail(&t[1], &m);
-
- return spi_sync(rb4xx_cpld->spi, &m);
-}
-#else
-int rb4xx_cpld_read(unsigned char *rx_buf, const unsigned char *verify_buf,
- unsigned count)
+int rb4xx_cpld_read(unsigned char *rx_buf, unsigned count)
{
static const unsigned char cmd[2] = { CPLD_CMD_READ_NAND, 0 };
struct spi_transfer t[2] = {
@@ -205,10 +139,8 @@ int rb4xx_cpld_read(unsigned char *rx_buf, const unsigned char *verify_buf,
.tx_buf = &cmd,
.len = 2,
}, {
- .tx_buf = verify_buf,
.rx_buf = rx_buf,
.len = count,
- .verify = (verify_buf != NULL),
},
};
struct spi_message m;
@@ -221,40 +153,10 @@ int rb4xx_cpld_read(unsigned char *rx_buf, const unsigned char *verify_buf,
spi_message_add_tail(&t[1], &m);
return spi_sync(rb4xx_cpld->spi, &m);
}
-#endif
EXPORT_SYMBOL_GPL(rb4xx_cpld_read);
int rb4xx_cpld_write(const unsigned char *buf, unsigned count)
{
-#if 0
- struct spi_transfer t[3];
- struct spi_message m;
- unsigned char cmd[1];
-
- if (rb4xx_cpld == NULL)
- return -ENODEV;
-
- memset(&t, 0, sizeof(t));
- spi_message_init(&m);
-
- /* send command */
- t[0].tx_buf = cmd;
- t[0].len = sizeof(cmd);
- spi_message_add_tail(&t[0], &m);
-
- cmd[0] = CPLD_CMD_WRITE_NAND;
-
- /* write data */
- t[1].tx_buf = buf;
- t[1].len = count;
- spi_message_add_tail(&t[1], &m);
-
- /* send idle */
- t[2].len = 1;
- spi_message_add_tail(&t[2], &m);
-
- return spi_sync(rb4xx_cpld->spi, &m);
-#else
static const unsigned char cmd = CPLD_CMD_WRITE_NAND;
struct spi_transfer t[3] = {
{
@@ -263,10 +165,10 @@ int rb4xx_cpld_write(const unsigned char *buf, unsigned count)
}, {
.tx_buf = buf,
.len = count,
- .fast_write = 1,
+ .tx_nbits = SPI_NBITS_DUAL,
}, {
.len = 1,
- .fast_write = 1,
+ .tx_nbits = SPI_NBITS_DUAL,
},
};
struct spi_message m;
@@ -279,7 +181,6 @@ int rb4xx_cpld_write(const unsigned char *buf, unsigned count)
spi_message_add_tail(&t[1], &m);
spi_message_add_tail(&t[2], &m);
return spi_sync(rb4xx_cpld->spi, &m);
-#endif
}
EXPORT_SYMBOL_GPL(rb4xx_cpld_write);