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author | Simon Glass <sjg@chromium.org> | 2016-01-17 20:53:51 -0700 |
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committer | Tom Rini <trini@konsulko.com> | 2016-01-25 10:39:43 -0500 |
commit | 72a8cf8dccf6f8b86d1683205e032a94eaa86938 (patch) | |
tree | b29378eb8af182f0faf2028cb52465a021de40cc /cmd/cmd_mmc_spi.c | |
parent | 25d5352c71dcc599030a4a764d8087185ed537d3 (diff) | |
download | blackbird-obmc-uboot-72a8cf8dccf6f8b86d1683205e032a94eaa86938.tar.gz blackbird-obmc-uboot-72a8cf8dccf6f8b86d1683205e032a94eaa86938.zip |
Move all command code into its own directory
There are a lot of unrelated files in common, including all of the commands.
Moving them into their own directory makes them easier to find and is more
logical.
Some commands include non-command code, such as cmd_scsi.c. This should be
sorted out at some point so that the function can be enabled with or without
the associated command.
Unfortunately, with m68k I get this error:
m68k: + M5329AFEE
+arch/m68k/cpu/mcf532x/start.o: In function `_start':
+arch/m68k/cpu/mcf532x/start.S:159:(.text+0x452): relocation truncated to fit: R_68K_PC16 against symbol `board_init_f' defined in .text.board_init_f section in common/built-in.o
I hope someone can shed some light on what this means. I hope it isn't
depending on the position of code in the image.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
Diffstat (limited to 'cmd/cmd_mmc_spi.c')
-rw-r--r-- | cmd/cmd_mmc_spi.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/cmd/cmd_mmc_spi.c b/cmd/cmd_mmc_spi.c new file mode 100644 index 0000000000..a2138b8650 --- /dev/null +++ b/cmd/cmd_mmc_spi.c @@ -0,0 +1,88 @@ +/* + * Command for mmc_spi setup. + * + * Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw> + * Licensed under the GPL-2 or later. + */ + +#include <common.h> +#include <mmc.h> +#include <spi.h> + +#ifndef CONFIG_MMC_SPI_BUS +# define CONFIG_MMC_SPI_BUS 0 +#endif +#ifndef CONFIG_MMC_SPI_CS +# define CONFIG_MMC_SPI_CS 1 +#endif +/* in SPI mode, MMC speed limit is 20MHz, while SD speed limit is 25MHz */ +#ifndef CONFIG_MMC_SPI_SPEED +# define CONFIG_MMC_SPI_SPEED 25000000 +#endif +/* MMC and SD specs only seem to care that sampling is on the + * rising edge ... meaning SPI modes 0 or 3. So either SPI mode + * should be legit. We'll use mode 0 since the steady state is 0, + * which is appropriate for hotplugging, unless the platform data + * specify mode 3 (if hardware is not compatible to mode 0). + */ +#ifndef CONFIG_MMC_SPI_MODE +# define CONFIG_MMC_SPI_MODE SPI_MODE_0 +#endif + +static int do_mmc_spi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + uint bus = CONFIG_MMC_SPI_BUS; + uint cs = CONFIG_MMC_SPI_CS; + uint speed = CONFIG_MMC_SPI_SPEED; + uint mode = CONFIG_MMC_SPI_MODE; + char *endp; + struct mmc *mmc; + + if (argc < 2) + goto usage; + + cs = simple_strtoul(argv[1], &endp, 0); + if (*argv[1] == 0 || (*endp != 0 && *endp != ':')) + goto usage; + if (*endp == ':') { + if (endp[1] == 0) + goto usage; + bus = cs; + cs = simple_strtoul(endp + 1, &endp, 0); + if (*endp != 0) + goto usage; + } + if (argc >= 3) { + speed = simple_strtoul(argv[2], &endp, 0); + if (*argv[2] == 0 || *endp != 0) + goto usage; + } + if (argc >= 4) { + mode = simple_strtoul(argv[3], &endp, 16); + if (*argv[3] == 0 || *endp != 0) + goto usage; + } + if (!spi_cs_is_valid(bus, cs)) { + printf("Invalid SPI bus %u cs %u\n", bus, cs); + return 1; + } + + mmc = mmc_spi_init(bus, cs, speed, mode); + if (!mmc) { + printf("Failed to create MMC Device\n"); + return 1; + } + printf("%s: %d at %u:%u hz %u mode %u\n", mmc->cfg->name, mmc->block_dev.dev, + bus, cs, speed, mode); + mmc_init(mmc); + return 0; + +usage: + return CMD_RET_USAGE; +} + +U_BOOT_CMD( + mmc_spi, 4, 0, do_mmc_spi, + "mmc_spi setup", + "[bus:]cs [hz] [mode] - setup mmc_spi device" +); |