summaryrefslogtreecommitdiff
path: root/common/cmd_spi.c
diff options
context:
space:
mode:
authorWolfgang Denk <wd@denx.de>2008-06-05 01:12:30 +0200
committerWolfgang Denk <wd@denx.de>2008-06-05 01:12:30 +0200
commit8155efbd7ae9c65564ca98affe94631d612ae088 (patch)
tree23f89ba651f48bf88c653796cb64f2c58d2f0515 /common/cmd_spi.c
parent5e1882df6a3efc7de5524d28cea4ecde7d163d54 (diff)
parent9ef1cbef1a649e3779298b0e663be4865cbbbfbc (diff)
downloadu-boot-imx-8155efbd7ae9c65564ca98affe94631d612ae088.zip
u-boot-imx-8155efbd7ae9c65564ca98affe94631d612ae088.tar.gz
u-boot-imx-8155efbd7ae9c65564ca98affe94631d612ae088.tar.bz2
Merge branch 'master' of ssh://mercury/home/wd/git/u-boot/master
Diffstat (limited to 'common/cmd_spi.c')
-rw-r--r--common/cmd_spi.c42
1 files changed, 25 insertions, 17 deletions
diff --git a/common/cmd_spi.c b/common/cmd_spi.c
index 7604422..40ee7e7 100644
--- a/common/cmd_spi.c
+++ b/common/cmd_spi.c
@@ -37,20 +37,20 @@
# define MAX_SPI_BYTES 32 /* Maximum number of bytes we can handle */
#endif
-/*
- * External table of chip select functions (see the appropriate board
- * support for the actual definition of the table).
- */
-extern spi_chipsel_type spi_chipsel[];
-extern int spi_chipsel_cnt;
+#ifndef CONFIG_DEFAULT_SPI_BUS
+# define CONFIG_DEFAULT_SPI_BUS 0
+#endif
+#ifndef CONFIG_DEFAULT_SPI_MODE
+# define CONFIG_DEFAULT_SPI_MODE SPI_MODE_0
+#endif
/*
* Values from last command.
*/
-static int device;
-static int bitlen;
-static uchar dout[MAX_SPI_BYTES];
-static uchar din[MAX_SPI_BYTES];
+static unsigned int device;
+static int bitlen;
+static uchar dout[MAX_SPI_BYTES];
+static uchar din[MAX_SPI_BYTES];
/*
* SPI read/write
@@ -65,6 +65,7 @@ static uchar din[MAX_SPI_BYTES];
int do_spi (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
+ struct spi_slave *slave;
char *cp = 0;
uchar tmp;
int j;
@@ -101,19 +102,24 @@ int do_spi (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
}
}
- if ((device < 0) || (device >= spi_chipsel_cnt)) {
- printf("Invalid device %d, giving up.\n", device);
- return 1;
- }
if ((bitlen < 0) || (bitlen > (MAX_SPI_BYTES * 8))) {
printf("Invalid bitlen %d, giving up.\n", bitlen);
return 1;
}
- debug ("spi_chipsel[%d] = %08X\n",
- device, (uint)spi_chipsel[device]);
+ /* FIXME: Make these parameters run-time configurable */
+ slave = spi_setup_slave(CONFIG_DEFAULT_SPI_BUS, device, 1000000,
+ CONFIG_DEFAULT_SPI_MODE);
+ if (!slave) {
+ printf("Invalid device %d, giving up.\n", device);
+ return 1;
+ }
+
+ debug ("spi chipsel = %08X\n", device);
- if(spi_xfer(spi_chipsel[device], bitlen, dout, din) != 0) {
+ spi_claim_bus(slave);
+ if(spi_xfer(slave, bitlen, dout, din,
+ SPI_XFER_BEGIN | SPI_XFER_END) != 0) {
printf("Error with the SPI transaction.\n");
rcode = 1;
} else {
@@ -123,6 +129,8 @@ int do_spi (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
}
printf("\n");
}
+ spi_release_bus(slave);
+ spi_free_slave(slave);
return rcode;
}