diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/phy/b53.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/drivers/net/phy/b53.c b/drivers/net/phy/b53.c index 185a2cddab..f7f2d9f1ee 100644 --- a/drivers/net/phy/b53.c +++ b/drivers/net/phy/b53.c @@ -627,3 +627,142 @@ int phy_b53_init(void) return 0; } + +int do_b53_reg_read(const char *name, int argc, char * const argv[]) +{ + u8 page, offset, width; + struct mii_dev *bus; + int ret = -EINVAL; + u64 value64 = 0; + u32 value32 = 0; + u16 value16 = 0; + u8 value8 = 0; + + bus = miiphy_get_dev_by_name(name); + if (!bus) { + printf("unable to find MDIO bus: %s\n", name); + return ret; + } + + page = simple_strtoul(argv[1], NULL, 16); + offset = simple_strtoul(argv[2], NULL, 16); + width = simple_strtoul(argv[3], NULL, 10); + + switch (width) { + case 8: + ret = b53_mdio_read8(bus, page, offset, &value8); + printf("page=0x%02x, offset=0x%02x, value=0x%02x\n", + page, offset, value8); + break; + case 16: + ret = b53_mdio_read16(bus, page, offset, &value16); + printf("page=0x%02x, offset=0x%02x, value=0x%04x\n", + page, offset, value16); + break; + case 32: + ret = b53_mdio_read32(bus, page, offset, &value32); + printf("page=0x%02x, offset=0x%02x, value=0x%08x\n", + page, offset, value32); + break; + case 48: + ret = b53_mdio_read48(bus, page, offset, &value64); + printf("page=0x%02x, offset=0x%02x, value=0x%012llx\n", + page, offset, value64); + break; + case 64: + ret = b53_mdio_read48(bus, page, offset, &value64); + printf("page=0x%02x, offset=0x%02x, value=0x%016llx\n", + page, offset, value64); + break; + default: + printf("Unsupported width: %d\n", width); + break; + } + + return ret; +} + +int do_b53_reg_write(const char *name, int argc, char * const argv[]) +{ + u8 page, offset, width; + struct mii_dev *bus; + int ret = -EINVAL; + u64 value64 = 0; + u32 value = 0; + + bus = miiphy_get_dev_by_name(name); + if (!bus) { + printf("unable to find MDIO bus: %s\n", name); + return ret; + } + + page = simple_strtoul(argv[1], NULL, 16); + offset = simple_strtoul(argv[2], NULL, 16); + width = simple_strtoul(argv[3], NULL, 10); + if (width == 48 || width == 64) + value64 = simple_strtoull(argv[4], NULL, 16); + else + value = simple_strtoul(argv[4], NULL, 16); + + switch (width) { + case 8: + ret = b53_mdio_write8(bus, page, offset, value & 0xff); + break; + case 16: + ret = b53_mdio_write16(bus, page, offset, value); + break; + case 32: + ret = b53_mdio_write32(bus, page, offset, value); + break; + case 48: + ret = b53_mdio_write48(bus, page, offset, value64); + break; + case 64: + ret = b53_mdio_write64(bus, page, offset, value64); + break; + default: + printf("Unsupported width: %d\n", width); + break; + } + + return ret; +} + +int do_b53_reg(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + const char *cmd, *mdioname; + int ret = 0; + + if (argc < 2) + return cmd_usage(cmdtp); + + cmd = argv[1]; + --argc; + ++argv; + + if (!strcmp(cmd, "write")) { + if (argc < 4) + return cmd_usage(cmdtp); + mdioname = argv[1]; + --argc; + ++argv; + ret = do_b53_reg_write(mdioname, argc, argv); + } else if (!strcmp(cmd, "read")) { + if (argc < 5) + return cmd_usage(cmdtp); + mdioname = argv[1]; + --argc; + ++argv; + ret = do_b53_reg_read(mdioname, argc, argv); + } else { + return cmd_usage(cmdtp); + } + + return ret; +} + +U_BOOT_CMD(b53_reg, 7, 1, do_b53_reg, + "Broadcom B53 switch register access", + "write mdioname page (hex) offset (hex) width (dec) value (hex)\n" + "read mdioname page (hex) offset (hex) width (dec)\n" + ); |