diff options
author | Simon Glass <sjg@chromium.org> | 2016-01-18 06:53:51 +0300 |
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committer | Tom Rini <trini@konsulko.com> | 2016-01-25 18:39:43 +0300 |
commit | 72a8cf8dccf6f8b86d1683205e032a94eaa86938 (patch) | |
tree | b29378eb8af182f0faf2028cb52465a021de40cc /cmd/cmd_mdio.c | |
parent | 25d5352c71dcc599030a4a764d8087185ed537d3 (diff) | |
download | u-boot-72a8cf8dccf6f8b86d1683205e032a94eaa86938.tar.xz |
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_mdio.c')
-rw-r--r-- | cmd/cmd_mdio.c | 313 |
1 files changed, 313 insertions, 0 deletions
diff --git a/cmd/cmd_mdio.c b/cmd/cmd_mdio.c new file mode 100644 index 0000000000..fb13d05075 --- /dev/null +++ b/cmd/cmd_mdio.c @@ -0,0 +1,313 @@ +/* + * (C) Copyright 2011 Freescale Semiconductor, Inc + * Andy Fleming + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* + * MDIO Commands + */ + +#include <common.h> +#include <command.h> +#include <miiphy.h> +#include <phy.h> + + +static char last_op[2]; +static uint last_data; +static uint last_addr_lo; +static uint last_addr_hi; +static uint last_devad_lo; +static uint last_devad_hi; +static uint last_reg_lo; +static uint last_reg_hi; + +static int extract_range(char *input, int *plo, int *phi) +{ + char *end; + *plo = simple_strtol(input, &end, 0); + if (end == input) + return -1; + + if ((*end == '-') && *(++end)) + *phi = simple_strtol(end, NULL, 0); + else if (*end == '\0') + *phi = *plo; + else + return -1; + + return 0; +} + +static int mdio_write_ranges(struct phy_device *phydev, struct mii_dev *bus, + int addrlo, + int addrhi, int devadlo, int devadhi, + int reglo, int reghi, unsigned short data, + int extended) +{ + int addr, devad, reg; + int err = 0; + + for (addr = addrlo; addr <= addrhi; addr++) { + for (devad = devadlo; devad <= devadhi; devad++) { + for (reg = reglo; reg <= reghi; reg++) { + if (!extended) + err = bus->write(bus, addr, devad, + reg, data); + else + err = phydev->drv->writeext(phydev, + addr, devad, reg, data); + + if (err) + goto err_out; + } + } + } + +err_out: + return err; +} + +static int mdio_read_ranges(struct phy_device *phydev, struct mii_dev *bus, + int addrlo, + int addrhi, int devadlo, int devadhi, + int reglo, int reghi, int extended) +{ + int addr, devad, reg; + + printf("Reading from bus %s\n", bus->name); + for (addr = addrlo; addr <= addrhi; addr++) { + printf("PHY at address %d:\n", addr); + + for (devad = devadlo; devad <= devadhi; devad++) { + for (reg = reglo; reg <= reghi; reg++) { + int val; + + if (!extended) + val = bus->read(bus, addr, devad, reg); + else + val = phydev->drv->readext(phydev, addr, + devad, reg); + + if (val < 0) { + printf("Error\n"); + + return val; + } + + if (devad >= 0) + printf("%d.", devad); + + printf("%d - 0x%x\n", reg, val & 0xffff); + } + } + } + + return 0; +} + +/* The register will be in the form [a[-b].]x[-y] */ +static int extract_reg_range(char *input, int *devadlo, int *devadhi, + int *reglo, int *reghi) +{ + char *regstr; + + /* use strrchr to find the last string after a '.' */ + regstr = strrchr(input, '.'); + + /* If it exists, extract the devad(s) */ + if (regstr) { + char devadstr[32]; + + strncpy(devadstr, input, regstr - input); + devadstr[regstr - input] = '\0'; + + if (extract_range(devadstr, devadlo, devadhi)) + return -1; + + regstr++; + } else { + /* Otherwise, we have no devad, and we just got regs */ + *devadlo = *devadhi = MDIO_DEVAD_NONE; + + regstr = input; + } + + return extract_range(regstr, reglo, reghi); +} + +static int extract_phy_range(char *const argv[], int argc, struct mii_dev **bus, + struct phy_device **phydev, + int *addrlo, int *addrhi) +{ + struct phy_device *dev = *phydev; + + if ((argc < 1) || (argc > 2)) + return -1; + + /* If there are two arguments, it's busname addr */ + if (argc == 2) { + *bus = miiphy_get_dev_by_name(argv[0]); + + if (!*bus) + return -1; + + return extract_range(argv[1], addrlo, addrhi); + } + + /* It must be one argument, here */ + + /* + * This argument can be one of two things: + * 1) Ethernet device name + * 2) Just an address (use the previously-used bus) + * + * We check all buses for a PHY which is connected to an ethernet + * device by the given name. If none are found, we call + * extract_range() on the string, and see if it's an address range. + */ + dev = mdio_phydev_for_ethname(argv[0]); + + if (dev) { + *addrlo = *addrhi = dev->addr; + *bus = dev->bus; + + return 0; + } + + /* It's an address or nothing useful */ + return extract_range(argv[0], addrlo, addrhi); +} + +/* ---------------------------------------------------------------- */ +static int do_mdio(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + char op[2]; + int addrlo, addrhi, reglo, reghi, devadlo, devadhi; + unsigned short data; + int pos = argc - 1; + struct mii_dev *bus; + struct phy_device *phydev = NULL; + int extended = 0; + + if (argc < 2) + return CMD_RET_USAGE; + + /* + * We use the last specified parameters, unless new ones are + * entered. + */ + op[0] = argv[1][0]; + addrlo = last_addr_lo; + addrhi = last_addr_hi; + devadlo = last_devad_lo; + devadhi = last_devad_hi; + reglo = last_reg_lo; + reghi = last_reg_hi; + data = last_data; + + bus = mdio_get_current_dev(); + + if (flag & CMD_FLAG_REPEAT) + op[0] = last_op[0]; + + if (strlen(argv[1]) > 1) { + op[1] = argv[1][1]; + if (op[1] == 'x') { + phydev = mdio_phydev_for_ethname(argv[2]); + + if (phydev) { + addrlo = phydev->addr; + addrhi = addrlo; + bus = phydev->bus; + extended = 1; + } else { + return -1; + } + + if (!phydev->drv || + (!phydev->drv->writeext && (op[0] == 'w')) || + (!phydev->drv->readext && (op[0] == 'r'))) { + puts("PHY does not have extended functions\n"); + return -1; + } + } + } + + switch (op[0]) { + case 'w': + if (pos > 1) + data = simple_strtoul(argv[pos--], NULL, 16); + case 'r': + if (pos > 1) + if (extract_reg_range(argv[pos--], &devadlo, &devadhi, + ®lo, ®hi)) + return -1; + + default: + if (pos > 1) + if (extract_phy_range(&(argv[2]), pos - 1, &bus, + &phydev, &addrlo, &addrhi)) + return -1; + + break; + } + + if (op[0] == 'l') { + mdio_list_devices(); + + return 0; + } + + /* Save the chosen bus */ + miiphy_set_current_dev(bus->name); + + switch (op[0]) { + case 'w': + mdio_write_ranges(phydev, bus, addrlo, addrhi, devadlo, devadhi, + reglo, reghi, data, extended); + break; + + case 'r': + mdio_read_ranges(phydev, bus, addrlo, addrhi, devadlo, devadhi, + reglo, reghi, extended); + break; + } + + /* + * Save the parameters for repeats. + */ + last_op[0] = op[0]; + last_addr_lo = addrlo; + last_addr_hi = addrhi; + last_devad_lo = devadlo; + last_devad_hi = devadhi; + last_reg_lo = reglo; + last_reg_hi = reghi; + last_data = data; + + return 0; +} + +/***************************************************/ + +U_BOOT_CMD( + mdio, 6, 1, do_mdio, + "MDIO utility commands", + "list - List MDIO buses\n" + "mdio read <phydev> [<devad>.]<reg> - " + "read PHY's register at <devad>.<reg>\n" + "mdio write <phydev> [<devad>.]<reg> <data> - " + "write PHY's register at <devad>.<reg>\n" + "mdio rx <phydev> [<devad>.]<reg> - " + "read PHY's extended register at <devad>.<reg>\n" + "mdio wx <phydev> [<devad>.]<reg> <data> - " + "write PHY's extended register at <devad>.<reg>\n" + "<phydev> may be:\n" + " <busname> <addr>\n" + " <addr>\n" + " <eth name>\n" + "<addr> <devad>, and <reg> may be ranges, e.g. 1-5.4-0x1f.\n" +); |