X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=cmd%2Fspi.c;h=aec912167c675a0dd56cbf2ad358024ea97c120a;hb=2843444a6eaf1bf287aa00ad46ccfac54fac26b0;hp=64c3ffcf423b35fc1b0a65daccb99d490a053c5f;hpb=9c3193f8d03d4074fa6ca6b783246b97d8dc2ff5;p=oweals%2Fu-boot.git

diff --git a/cmd/spi.c b/cmd/spi.c
index 64c3ffcf42..aec912167c 100644
--- a/cmd/spi.c
+++ b/cmd/spi.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /*
@@ -23,19 +22,13 @@
 #   define MAX_SPI_BYTES 32	/* Maximum number of bytes we can handle */
 #endif
 
-#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 unsigned int	bus;
 static unsigned int	cs;
 static unsigned int	mode;
+static unsigned int	freq;
 static int   		bitlen;
 static uchar 		dout[MAX_SPI_BYTES];
 static uchar 		din[MAX_SPI_BYTES];
@@ -51,12 +44,14 @@ static int do_spi_xfer(int bus, int cs)
 
 	snprintf(name, sizeof(name), "generic_%d:%d", bus, cs);
 	str = strdup(name);
-	ret = spi_get_bus_and_cs(bus, cs, 1000000, mode, "spi_generic_drv",
+	if (!str)
+		return -ENOMEM;
+	ret = spi_get_bus_and_cs(bus, cs, freq, mode, "spi_generic_drv",
 				 str, &dev, &slave);
 	if (ret)
 		return ret;
 #else
-	slave = spi_setup_slave(bus, cs, 1000000, mode);
+	slave = spi_setup_slave(bus, cs, freq, mode);
 	if (!slave) {
 		printf("Invalid device %d:%d\n", bus, cs);
 		return -EINVAL;
@@ -102,7 +97,7 @@ done:
  * The command prints out the hexadecimal string received via SPI.
  */
 
-int do_spi (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+int do_spi(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 {
 	char  *cp = 0;
 	uchar tmp;
@@ -112,6 +107,8 @@ int do_spi (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	 * We use the last specified parameters, unless new ones are
 	 * entered.
 	 */
+	if (freq == 0)
+		freq = 1000000;
 
 	if ((flag & CMD_FLAG_REPEAT) == 0)
 	{
@@ -125,7 +122,9 @@ int do_spi (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 				bus = CONFIG_DEFAULT_SPI_BUS;
 			}
 			if (*cp == '.')
-				mode = simple_strtoul(cp+1, NULL, 10);
+				mode = simple_strtoul(cp+1, &cp, 10);
+			if (*cp == '@')
+				freq = simple_strtoul(cp+1, &cp, 10);
 		}
 		if (argc >= 3)
 			bitlen = simple_strtoul(argv[2], NULL, 10);
@@ -165,10 +164,11 @@ int do_spi (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 U_BOOT_CMD(
 	sspi,	5,	1,	do_spi,
 	"SPI utility command",
-	"[<bus>:]<cs>[.<mode>] <bit_len> <dout> - Send and receive bits\n"
+	"[<bus>:]<cs>[.<mode>][@<freq>] <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"
+	"<freq>    - Identifies the SPI bus frequency in Hz\n"
 	"<bit_len> - Number of bits to send (base 10)\n"
 	"<dout>    - Hexadecimal string that gets sent"
 );