X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=common%2Fcmd_spi.c;h=eba5fb83da4f54d66c8f64f9de9df12d252c9222;hb=586197dfe42ffda777205b02fe404107eb7d974a;hp=76044221416c9fbd194828b6f4c6bd35fdd461fd;hpb=fe08fb658008cd4be54758faa5d382a2b3b1f86a;p=u-boot

diff --git a/common/cmd_spi.c b/common/cmd_spi.c
index 7604422141..eba5fb83da 100644
--- a/common/cmd_spi.c
+++ b/common/cmd_spi.c
@@ -37,20 +37,22 @@
 #   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	bus;
+static unsigned int	cs;
+static unsigned int	mode;
+static int   		bitlen;
+static uchar 		dout[MAX_SPI_BYTES];
+static uchar 		din[MAX_SPI_BYTES];
 
 /*
  * SPI read/write
@@ -63,8 +65,9 @@ static uchar din[MAX_SPI_BYTES];
  * The command prints out the hexadecimal string received via SPI.
  */
 
-int do_spi (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_spi (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
+	struct spi_slave *slave;
 	char  *cp = 0;
 	uchar tmp;
 	int   j;
@@ -77,8 +80,18 @@ int do_spi (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 
 	if ((flag & CMD_FLAG_REPEAT) == 0)
 	{
-		if (argc >= 2)
-			device = simple_strtoul(argv[1], NULL, 10);
+		if (argc >= 2) {
+			mode = CONFIG_DEFAULT_SPI_MODE;
+			bus = simple_strtoul(argv[1], &cp, 10);
+			if (*cp == ':') {
+				cs = simple_strtoul(cp+1, &cp, 10);
+			} else {
+				cs = bus;
+				bus = CONFIG_DEFAULT_SPI_BUS;
+			}
+			if (*cp == '.')
+				mode = simple_strtoul(cp+1, NULL, 10);
+		}
 		if (argc >= 3)
 			bitlen = simple_strtoul(argv[2], NULL, 10);
 		if (argc >= 4) {
@@ -90,7 +103,7 @@ int do_spi (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 				if(tmp > 15)
 					tmp -= ('a' - 'A');
 				if(tmp > 15) {
-					printf("Hex conversion error on %c, giving up.\n", *cp);
+					printf("Hex conversion error on %c\n", *cp);
 					return 1;
 				}
 				if((j % 2) == 0)
@@ -101,28 +114,30 @@ 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);
+		printf("Invalid bitlen %d\n", bitlen);
 		return 1;
 	}
 
-	debug ("spi_chipsel[%d] = %08X\n",
-		device, (uint)spi_chipsel[device]);
+	slave = spi_setup_slave(bus, cs, 1000000, mode);
+	if (!slave) {
+		printf("Invalid device %d:%d\n", bus, cs);
+		return 1;
+	}
 
-	if(spi_xfer(spi_chipsel[device], bitlen, dout, din) != 0) {
-		printf("Error with the SPI transaction.\n");
+	spi_claim_bus(slave);
+	if(spi_xfer(slave, bitlen, dout, din,
+				SPI_XFER_BEGIN | SPI_XFER_END) != 0) {
+		printf("Error during SPI transaction\n");
 		rcode = 1;
 	} else {
-		cp = (char *)din;
 		for(j = 0; j < ((bitlen + 7) / 8); j++) {
-			printf("%02X", *cp++);
+			printf("%02X", din[j]);
 		}
 		printf("\n");
 	}
+	spi_release_bus(slave);
+	spi_free_slave(slave);
 
 	return rcode;
 }
@@ -131,9 +146,11 @@ int do_spi (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 
 U_BOOT_CMD(
 	sspi,	5,	1,	do_spi,
-	"sspi    - SPI utility commands\n",
-	"<device> <bit_len> <dout> - Send <bit_len> bits from <dout> out the SPI\n"
-	"<device>  - Identifies the chip select of the device\n"
+	"SPI utility command",
+	"[<bus>:]<cs>[.<mode>] <bit_len> <dout> - Send and receive bits\n"
+	"<bus>     - Identifies the SPI bus\n"
+	"<cs>      - Identifies the chip select\n"
+	"<mode>    - Identifies the SPI mode to use\n"
 	"<bit_len> - Number of bits to send (base 10)\n"
-	"<dout>    - Hexadecimal string that gets sent\n"
+	"<dout>    - Hexadecimal string that gets sent"
 );