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Stefan Roese authored
As discussed on the list, move "arch/ppc" to "arch/powerpc" to better match the Linux directory structure. Please note that this patch also changes the "ppc" target in MAKEALL to "powerpc" to match this new infrastructure. But "ppc" is kept as an alias for now, to not break compatibility with scripts using this name. Signed-off-by:
Stefan Roese <sr@denx.de> Acked-by:
Wolfgang Denk <wd@denx.de> Acked-by:
Detlev Zundel <dzu@denx.de> Acked-by:
Kim Phillips <kim.phillips@freescale.com> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Anatolij Gustschin <agust@denx.de>
Stefan Roese authoredAs discussed on the list, move "arch/ppc" to "arch/powerpc" to better match the Linux directory structure. Please note that this patch also changes the "ppc" target in MAKEALL to "powerpc" to match this new infrastructure. But "ppc" is kept as an alias for now, to not break compatibility with scripts using this name. Signed-off-by:
Stefan Roese <sr@denx.de> Acked-by:
Wolfgang Denk <wd@denx.de> Acked-by:
Detlev Zundel <dzu@denx.de> Acked-by:
Kim Phillips <kim.phillips@freescale.com> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Anatolij Gustschin <agust@denx.de>
cmd_mdio.c 6.51 KiB
/*
* (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"
);