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https://github.com/AsahiLinux/u-boot
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90bcc3d38d
The DDR3 training code for Marvell A38X currently computes 1t timing
when given board topology map of the Turris Omnia, but Omnia needs 2t.
This patch adds support for enforcing the 2t timing in struct
hws_topology_map, through a new enum hws_timing, which can assume
following values:
HWS_TIM_DEFAULT - default behaviour, compute whether to enable 2t
from the number of CSs
HWS_TIM_1T - enforce 1t
HWS_TIM_2T - enforce 2t
This patch also sets all the board topology maps (db-88f6820-amc,
db-88f6820-gp, controlcenterdc and clearfog) to have timing set to
HWS_TIM_DEFAULT.
Signed-off-by: Marek Behun <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
157 lines
4.5 KiB
C
157 lines
4.5 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-2013.01-2014_T3.0"
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*/
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#define DB_GP_88F68XX_GPP_OUT_ENA_LOW \
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(~(BIT(1) | BIT(4) | BIT(6) | BIT(7) | BIT(8) | BIT(9) | \
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BIT(10) | BIT(11) | BIT(19) | BIT(22) | BIT(23) | BIT(25) | \
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BIT(26) | BIT(27) | BIT(29) | BIT(30) | BIT(31)))
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#define DB_GP_88F68XX_GPP_OUT_ENA_MID \
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(~(BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(15) | \
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BIT(16) | BIT(17) | BIT(18)))
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#define DB_GP_88F68XX_GPP_OUT_VAL_LOW 0x0
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#define DB_GP_88F68XX_GPP_OUT_VAL_MID 0x0
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#define DB_GP_88F68XX_GPP_POL_LOW 0x0
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#define DB_GP_88F68XX_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, 6, 0x20 }, /* Configuration registers: Bit on --> Input bits */
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{ 0x20, 7, 0xC3 }, /* Configuration registers: Bit on --> Input bits */
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{ 0x20, 2, 0x1D }, /* Output Data, register#0 */
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{ 0x20, 3, 0x18 }, /* Output Data, register#1 */
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{ 0x21, 6, 0xC3 }, /* Configuration registers: Bit on --> Input bits */
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{ 0x21, 7, 0x31 }, /* Configuration registers: Bit on --> Input bits */
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{ 0x21, 2, 0x08 }, /* Output Data, register#0 */
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{ 0x21, 3, 0xC0 } /* Output Data, register#1 */
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};
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static struct serdes_map board_serdes_map[] = {
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{PEX0, SERDES_SPEED_5_GBPS, PEX_ROOT_COMPLEX_X1, 0, 0},
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{SATA0, SERDES_SPEED_3_GBPS, SERDES_DEFAULT_MODE, 0, 0},
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{SATA1, SERDES_SPEED_3_GBPS, SERDES_DEFAULT_MODE, 0, 0},
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{SATA3, SERDES_SPEED_3_GBPS, SERDES_DEFAULT_MODE, 0, 0},
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{SATA2, SERDES_SPEED_3_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 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_1866L, /* speed_bin */
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BUS_WIDTH_8, /* 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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HWS_TIM_DEFAULT} }, /* timing */
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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(0x11244011, MVEBU_MPP_BASE + 0x08);
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writel(0x22222111, MVEBU_MPP_BASE + 0x0c);
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writel(0x22200002, MVEBU_MPP_BASE + 0x10);
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writel(0x30042022, MVEBU_MPP_BASE + 0x14);
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writel(0x55550555, MVEBU_MPP_BASE + 0x18);
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writel(0x00005550, MVEBU_MPP_BASE + 0x1c);
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/* Set GPP Out value */
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writel(DB_GP_88F68XX_GPP_OUT_VAL_LOW, MVEBU_GPIO0_BASE + 0x00);
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writel(DB_GP_88F68XX_GPP_OUT_VAL_MID, MVEBU_GPIO1_BASE + 0x00);
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/* Set GPP Polarity */
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writel(DB_GP_88F68XX_GPP_POL_LOW, MVEBU_GPIO0_BASE + 0x0c);
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writel(DB_GP_88F68XX_GPP_POL_MID, MVEBU_GPIO1_BASE + 0x0c);
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/* Set GPP Out Enable */
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writel(DB_GP_88F68XX_GPP_OUT_ENA_LOW, MVEBU_GPIO0_BASE + 0x04);
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writel(DB_GP_88F68XX_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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/* adress 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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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: Marvell DB-88F6820-GP\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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