diff options
Diffstat (limited to 'board/Marvell')
| -rw-r--r-- | board/Marvell/sheevaplug/sheevaplug.c | 54 |
1 files changed, 42 insertions, 12 deletions
diff --git a/board/Marvell/sheevaplug/sheevaplug.c b/board/Marvell/sheevaplug/sheevaplug.c index 0cc7f2b..5952d15 100644 --- a/board/Marvell/sheevaplug/sheevaplug.c +++ b/board/Marvell/sheevaplug/sheevaplug.c @@ -1,5 +1,6 @@ // SPDX-License-Identifier: GPL-2.0+ /* + * Copyright (C) 2021 Tony Dinh <mibodhi@gmail.com> * (C) Copyright 2009 * Marvell Semiconductor <www.marvell.com> * Written-by: Prafulla Wadaskar <prafulla@marvell.com> @@ -100,36 +101,65 @@ int board_init(void) return 0; } +static int fdt_get_phy_addr(const char *path) +{ + const void *fdt = gd->fdt_blob; + const u32 *reg; + const u32 *val; + int node, phandle, addr; + + /* Find the node by its full path */ + node = fdt_path_offset(fdt, path); + if (node >= 0) { + /* Look up phy-handle */ + val = fdt_getprop(fdt, node, "phy-handle", NULL); + if (val) { + phandle = fdt32_to_cpu(*val); + if (!phandle) + return -1; + /* Follow it to its node */ + node = fdt_node_offset_by_phandle(fdt, phandle); + if (node) { + /* Look up reg */ + reg = fdt_getprop(fdt, node, "reg", NULL); + if (reg) { + addr = fdt32_to_cpu(*reg); + return addr; + } + } + } + } + return -1; +} + #ifdef CONFIG_RESET_PHY_R /* Configure and enable MV88E1116 PHY */ void reset_phy(void) { u16 reg; - u16 devadr; - char *name = "egiga0"; + int phyaddr; + char *name = "ethernet-controller@72000"; + char *eth0_path = "/ocp@f1000000/ethernet-controller@72000/ethernet0-port@0"; if (miiphy_set_current_dev(name)) return; - /* command to read PHY dev address */ - if (miiphy_read(name, 0xEE, 0xEE, (u16 *) &devadr)) { - printf("Err..%s could not read PHY dev address\n", - __FUNCTION__); + phyaddr = fdt_get_phy_addr(eth0_path); + if (phyaddr < 0) return; - } /* * Enable RGMII delay on Tx and Rx for CPU port * Ref: sec 4.7.2 of chip datasheet */ - miiphy_write(name, devadr, MV88E1116_PGADR_REG, 2); - miiphy_read(name, devadr, MV88E1116_MAC_CTRL_REG, ®); + miiphy_write(name, phyaddr, MV88E1116_PGADR_REG, 2); + miiphy_read(name, phyaddr, MV88E1116_MAC_CTRL_REG, ®); reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL); - miiphy_write(name, devadr, MV88E1116_MAC_CTRL_REG, reg); - miiphy_write(name, devadr, MV88E1116_PGADR_REG, 0); + miiphy_write(name, phyaddr, MV88E1116_MAC_CTRL_REG, reg); + miiphy_write(name, phyaddr, MV88E1116_PGADR_REG, 0); /* reset the phy */ - miiphy_reset(name, devadr); + miiphy_reset(name, phyaddr); printf("88E1116 Initialized on %s\n", name); } |