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![Dennis Gilmore](/assets/img/avatar_default.png)
The helios4 is built on the SolidRun Armada 38x SOM. The port os based on the ClearFog board, using information from https://github.com/helios-4/u-boot-marvell as well as dtb input from https://github.com/helios-4/linux-marvell Signed-off-by: Dennis Gilmore <dennis@ausil.us> Signed-off-by: Dennis Gilmore <dgilmore@redhat.com> Signed-off-by: Stefan Roese <sr@denx.de>
164 lines
4.3 KiB
C
164 lines
4.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2018 Dennis Gilmore <dgilmore@redhat.com>
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* based on board/solidrun/clearfog/clearfog.c
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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_init.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 BIT(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-helios4" as well as the upstream config for 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 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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{6, 0xf9},
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{2, 0x46}, /* Assert reset signals and enable USB3 current limiter */
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{6, 0xb9}
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};
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static struct serdes_map board_serdes_map[] = {
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{SATA0, SERDES_SPEED_6_GBPS, SERDES_DEFAULT_MODE, 0, 0},
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{USB3_HOST0, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0},
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{SATA1, SERDES_SPEED_6_GBPS, SERDES_DEFAULT_MODE, 0, 0},
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{SATA3, SERDES_SPEED_6_GBPS, SERDES_DEFAULT_MODE, 0, 0},
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{SATA2, SERDES_SPEED_6_GBPS, SERDES_DEFAULT_MODE, 0, 0},
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{USB3_HOST1, SERDES_SPEED_5_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 mv_ddr_topology_map board_topology_map = {
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DEBUG_LEVEL_ERROR,
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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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MV_DDR_DEV_WIDTH_16BIT, /* memory_width */
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MV_DDR_DIE_CAP_8GBIT, /* mem_size */
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DDR_FREQ_800, /* frequency */
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0, 0, /* cas_wl cas_l */
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MV_DDR_TEMP_LOW, /* temperature */
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MV_DDR_TIM_DEFAULT} }, /* timing */
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BUS_MASK_32BIT_ECC, /* Busses mask */
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MV_DDR_CFG_DEFAULT, /* ddr configuration data source */
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{ {0} }, /* raw spd data */
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{0} /* timing parameters */
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};
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struct mv_ddr_topology_map *mv_ddr_topology_map_get(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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/* Init I2C IO expanders */
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for (i = 0; i < ARRAY_SIZE(io_exp); i++) {
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struct udevice *dev;
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int ret;
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ret = i2c_get_chip_for_busnum(0, io_exp[i].addr, 1, &dev);
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if (ret) {
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printf("Cannot find I2C: %d\n", ret);
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return 0;
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}
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ret = dm_i2c_write(dev, io_exp[i].val, &io_exp[i].val, 1);
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if (ret) {
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printf("Failed to set IO expander via I2C\n");
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return -EIO;
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}
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}
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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: Helios4\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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