mirror of
https://github.com/AsahiLinux/u-boot
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fb9765d5f9
Use GPIO19 which is wired to the uSOM phy reset signal in order to reset
the uSOM's 1512 Gigabit Ethernet phy.
This GPIO is valid on ClearFog rev 2.1 and newer.
Taken from SolidRun's specialised u-boot, see
f906e3df17
Signed-off-by: Patrick Wildt <patrick@blueri.se>
Signed-off-by: Stefan Roese <sr@denx.de>
160 lines
4.4 KiB
C
160 lines
4.4 KiB
C
/*
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* Copyright (C) 2015 Stefan Roese <sr@denx.de>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <i2c.h>
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#include <miiphy.h>
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#include <netdev.h>
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#include <asm/io.h>
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#include <asm/arch/cpu.h>
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#include <asm/arch/soc.h>
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#include "../drivers/ddr/marvell/a38x/ddr3_a38x_topology.h"
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#include <../serdes/a38x/high_speed_env_spec.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define ETH_PHY_CTRL_REG 0
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#define ETH_PHY_CTRL_POWER_DOWN_BIT 11
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#define ETH_PHY_CTRL_POWER_DOWN_MASK (1 << ETH_PHY_CTRL_POWER_DOWN_BIT)
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/*
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* Those values and defines are taken from the Marvell U-Boot version
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* "u-boot-2013.01-15t1-clearfog"
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*/
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#define BOARD_GPP_OUT_ENA_LOW 0xffffffff
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#define BOARD_GPP_OUT_ENA_MID 0xffffffff
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#define BOARD_GPP_OUT_VAL_LOW 0x0
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#define BOARD_GPP_OUT_VAL_MID 0x0
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#define BOARD_GPP_POL_LOW 0x0
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#define BOARD_GPP_POL_MID 0x0
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/* IO expander on Marvell GP board includes e.g. fan enabling */
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struct marvell_io_exp {
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u8 chip;
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u8 addr;
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u8 val;
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};
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static struct marvell_io_exp io_exp[] = {
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{ 0x20, 2, 0x40 }, /* Deassert both mini pcie reset signals */
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{ 0x20, 6, 0xf9 },
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{ 0x20, 2, 0x46 }, /* rst signals and ena USB3 current limiter */
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{ 0x20, 6, 0xb9 },
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{ 0x20, 3, 0x00 }, /* Set SFP_TX_DIS to zero */
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{ 0x20, 7, 0xbf }, /* Drive SFP_TX_DIS to zero */
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};
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static struct serdes_map board_serdes_map[] = {
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{SATA0, SERDES_SPEED_3_GBPS, SERDES_DEFAULT_MODE, 0, 0},
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{SGMII1, SERDES_SPEED_1_25_GBPS, SERDES_DEFAULT_MODE, 0, 0},
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{PEX1, SERDES_SPEED_5_GBPS, PEX_ROOT_COMPLEX_X1, 0, 0},
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{USB3_HOST1, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0},
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{PEX2, SERDES_SPEED_5_GBPS, PEX_ROOT_COMPLEX_X1, 0, 0},
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{SGMII2, SERDES_SPEED_1_25_GBPS, SERDES_DEFAULT_MODE, 0, 0},
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};
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int hws_board_topology_load(struct serdes_map **serdes_map_array, u8 *count)
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{
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*serdes_map_array = board_serdes_map;
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*count = ARRAY_SIZE(board_serdes_map);
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return 0;
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}
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/*
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* Define the DDR layout / topology here in the board file. This will
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* be used by the DDR3 init code in the SPL U-Boot version to configure
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* the DDR3 controller.
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*/
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static struct hws_topology_map board_topology_map = {
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0x1, /* active interfaces */
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/* cs_mask, mirror, dqs_swap, ck_swap X PUPs */
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{ { { {0x1, 0, 0, 0},
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{0x1, 0, 0, 0},
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{0x1, 0, 0, 0},
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{0x1, 0, 0, 0},
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{0x1, 0, 0, 0} },
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SPEED_BIN_DDR_1600K, /* speed_bin */
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BUS_WIDTH_16, /* memory_width */
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MEM_4G, /* mem_size */
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DDR_FREQ_800, /* frequency */
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0, 0, /* cas_l cas_wl */
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HWS_TEMP_LOW} }, /* temperature */
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5, /* Num Of Bus Per Interface*/
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BUS_MASK_32BIT /* Busses mask */
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};
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struct hws_topology_map *ddr3_get_topology_map(void)
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{
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/* Return the board topology as defined in the board code */
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return &board_topology_map;
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}
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int board_early_init_f(void)
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{
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/* Configure MPP */
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writel(0x11111111, MVEBU_MPP_BASE + 0x00);
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writel(0x11111111, MVEBU_MPP_BASE + 0x04);
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writel(0x10400011, MVEBU_MPP_BASE + 0x08);
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writel(0x22043333, MVEBU_MPP_BASE + 0x0c);
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writel(0x44400002, MVEBU_MPP_BASE + 0x10);
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writel(0x41144004, MVEBU_MPP_BASE + 0x14);
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writel(0x40333333, MVEBU_MPP_BASE + 0x18);
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writel(0x00004444, MVEBU_MPP_BASE + 0x1c);
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/* Set GPP Out value */
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writel(BOARD_GPP_OUT_VAL_LOW, MVEBU_GPIO0_BASE + 0x00);
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writel(BOARD_GPP_OUT_VAL_MID, MVEBU_GPIO1_BASE + 0x00);
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/* Set GPP Polarity */
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writel(BOARD_GPP_POL_LOW, MVEBU_GPIO0_BASE + 0x0c);
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writel(BOARD_GPP_POL_MID, MVEBU_GPIO1_BASE + 0x0c);
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/* Set GPP Out Enable */
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writel(BOARD_GPP_OUT_ENA_LOW, MVEBU_GPIO0_BASE + 0x04);
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writel(BOARD_GPP_OUT_ENA_MID, MVEBU_GPIO1_BASE + 0x04);
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return 0;
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}
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int board_init(void)
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{
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int i;
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/* Address of boot parameters */
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gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
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/* Toggle GPIO41 to reset onboard switch and phy */
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clrbits_le32(MVEBU_GPIO1_BASE + 0x0, BIT(9));
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clrbits_le32(MVEBU_GPIO1_BASE + 0x4, BIT(9));
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/* GPIO 19 on ClearFog rev 2.1 controls the uSOM onboard phy reset */
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clrbits_le32(MVEBU_GPIO0_BASE + 0x0, BIT(19));
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clrbits_le32(MVEBU_GPIO0_BASE + 0x4, BIT(19));
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mdelay(1);
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setbits_le32(MVEBU_GPIO1_BASE + 0x0, BIT(9));
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setbits_le32(MVEBU_GPIO0_BASE + 0x0, BIT(19));
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mdelay(10);
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/* Init I2C IO expanders */
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for (i = 0; i < ARRAY_SIZE(io_exp); i++)
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i2c_write(io_exp[i].chip, io_exp[i].addr, 1, &io_exp[i].val, 1);
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return 0;
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}
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int checkboard(void)
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{
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puts("Board: SolidRun ClearFog\n");
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return 0;
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}
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int board_eth_init(bd_t *bis)
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{
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cpu_eth_init(bis); /* Built in controller(s) come first */
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return pci_eth_init(bis);
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}
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