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u-boot/board/starfive/visionfive2/spl.c
Lukasz Tekieli 70f150759b board: visionfive2: configure PHY pad drive strength 
Configure the pad drive strength register for both PHYs.
The values correspond to what can be found in the Linux DTS
for VisionFive2 v1.3b.

Pad drive strength configuration is required for the phy0 to work correctly
with 100Mbit links.

Signed-off-by: Lukasz Tekieli <tekieli.lukasz@gmail.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2024-01-31 16:52:49 +08:00

279 lines
7.5 KiB
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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2022 StarFive Technology Co., Ltd.
* Author: Yanhong Wang<yanhong.wang@starfivetech.com>
*/
#include <common.h>
#include <asm/arch/eeprom.h>
#include <asm/arch/gpio.h>
#include <asm/arch/regs.h>
#include <asm/arch/spl.h>
#include <asm/io.h>
#include <dt-bindings/clock/starfive,jh7110-crg.h>
#include <fdt_support.h>
#include <linux/libfdt.h>
#include <log.h>
#include <spl.h>
DECLARE_GLOBAL_DATA_PTR;
#define JH7110_CLK_CPU_ROOT_OFFSET 0x0U
#define JH7110_CLK_CPU_ROOT_SHIFT 24
#define JH7110_CLK_CPU_ROOT_MASK GENMASK(29, 24)
struct starfive_vf2_pro {
const char *path;
const char *name;
const char *value;
};
static const struct starfive_vf2_pro starfive_vera[] = {
{"/soc/ethernet@16030000/mdio/ethernet-phy@0", "rx-internal-delay-ps",
"1900"},
{"/soc/ethernet@16030000/mdio/ethernet-phy@0", "tx-internal-delay-ps",
"1350"}
};
static const struct starfive_vf2_pro starfive_verb[] = {
{"/soc/ethernet@16030000", "starfive,tx-use-rgmii-clk", NULL},
{"/soc/ethernet@16040000", "starfive,tx-use-rgmii-clk", NULL},
{"/soc/ethernet@16030000/mdio/ethernet-phy@0",
"motorcomm,tx-clk-adj-enabled", NULL},
{"/soc/ethernet@16030000/mdio/ethernet-phy@0",
"motorcomm,tx-clk-100-inverted", NULL},
{"/soc/ethernet@16030000/mdio/ethernet-phy@0",
"motorcomm,tx-clk-1000-inverted", NULL},
{"/soc/ethernet@16030000/mdio/ethernet-phy@0",
"motorcomm,rx-clk-drv-microamp", "3970"},
{"/soc/ethernet@16030000/mdio/ethernet-phy@0",
"motorcomm,rx-data-drv-microamp", "2910"},
{"/soc/ethernet@16030000/mdio/ethernet-phy@0",
"rx-internal-delay-ps", "1900"},
{"/soc/ethernet@16030000/mdio/ethernet-phy@0",
"tx-internal-delay-ps", "1500"},
{"/soc/ethernet@16040000/mdio/ethernet-phy@1",
"motorcomm,tx-clk-adj-enabled", NULL},
{ "/soc/ethernet@16040000/mdio/ethernet-phy@1",
"motorcomm,tx-clk-100-inverted", NULL},
{"/soc/ethernet@16040000/mdio/ethernet-phy@1",
"motorcomm,rx-clk-drv-microamp", "3970"},
{"/soc/ethernet@16040000/mdio/ethernet-phy@1",
"motorcomm,rx-data-drv-microamp", "2910"},
{"/soc/ethernet@16040000/mdio/ethernet-phy@1",
"rx-internal-delay-ps", "0"},
{"/soc/ethernet@16040000/mdio/ethernet-phy@1",
"tx-internal-delay-ps", "0"},
};
void spl_fdt_fixup_version_a(void *fdt)
{
static const char compat[] = "starfive,visionfive-2-v1.2a\0starfive,jh7110";
u32 phandle;
u8 i;
int offset;
int ret;
fdt_setprop(fdt, fdt_path_offset(fdt, "/"), "compatible", compat, sizeof(compat));
fdt_setprop_string(fdt, fdt_path_offset(fdt, "/"), "model",
"StarFive VisionFive 2 v1.2A");
offset = fdt_path_offset(fdt, "/soc/clock-controller@13020000");
phandle = fdt_get_phandle(fdt, offset);
offset = fdt_path_offset(fdt, "/soc/ethernet@16040000");
fdt_setprop_u32(fdt, offset, "assigned-clocks", phandle);
fdt_appendprop_u32(fdt, offset, "assigned-clocks", JH7110_SYSCLK_GMAC1_TX);
fdt_appendprop_u32(fdt, offset, "assigned-clocks", phandle);
fdt_appendprop_u32(fdt, offset, "assigned-clocks", JH7110_SYSCLK_GMAC1_RX);
fdt_setprop_u32(fdt, offset, "assigned-clock-parents", phandle);
fdt_appendprop_u32(fdt, offset, "assigned-clock-parents",
JH7110_SYSCLK_GMAC1_RMII_RTX);
fdt_appendprop_u32(fdt, offset, "assigned-clock-parents", phandle);
fdt_appendprop_u32(fdt, offset, "assigned-clock-parents",
JH7110_SYSCLK_GMAC1_RMII_RTX);
fdt_setprop_string(fdt, fdt_path_offset(fdt, "/soc/ethernet@16040000"),
"phy-mode", "rmii");
for (i = 0; i < ARRAY_SIZE(starfive_vera); i++) {
offset = fdt_path_offset(fdt, starfive_vera[i].path);
if (starfive_vera[i].value)
ret = fdt_setprop_u32(fdt, offset, starfive_vera[i].name,
dectoul(starfive_vera[i].value, NULL));
else
ret = fdt_setprop_empty(fdt, offset, starfive_vera[i].name);
if (ret) {
pr_err("%s set prop %s fail.\n", __func__, starfive_vera[i].name);
break;
}
}
}
void spl_fdt_fixup_version_b(void *fdt)
{
static const char compat[] = "starfive,visionfive-2-v1.3b\0starfive,jh7110";
u32 phandle;
u8 i;
int offset;
int ret;
fdt_setprop(fdt, fdt_path_offset(fdt, "/"), "compatible", compat, sizeof(compat));
fdt_setprop_string(fdt, fdt_path_offset(fdt, "/"), "model",
"StarFive VisionFive 2 v1.3B");
/* gmac0 */
offset = fdt_path_offset(fdt, "/soc/clock-controller@17000000");
phandle = fdt_get_phandle(fdt, offset);
offset = fdt_path_offset(fdt, "/soc/ethernet@16030000");
fdt_setprop_u32(fdt, offset, "assigned-clocks", phandle);
fdt_appendprop_u32(fdt, offset, "assigned-clocks", JH7110_AONCLK_GMAC0_TX);
fdt_setprop_u32(fdt, offset, "assigned-clock-parents", phandle);
fdt_appendprop_u32(fdt, offset, "assigned-clock-parents",
JH7110_AONCLK_GMAC0_RMII_RTX);
/* gmac1 */
offset = fdt_path_offset(fdt, "/soc/clock-controller@13020000");
phandle = fdt_get_phandle(fdt, offset);
offset = fdt_path_offset(fdt, "/soc/ethernet@16040000");
fdt_setprop_u32(fdt, offset, "assigned-clocks", phandle);
fdt_appendprop_u32(fdt, offset, "assigned-clocks", JH7110_SYSCLK_GMAC1_TX);
fdt_setprop_u32(fdt, offset, "assigned-clock-parents", phandle);
fdt_appendprop_u32(fdt, offset, "assigned-clock-parents",
JH7110_SYSCLK_GMAC1_RMII_RTX);
for (i = 0; i < ARRAY_SIZE(starfive_verb); i++) {
offset = fdt_path_offset(fdt, starfive_verb[i].path);
if (starfive_verb[i].value)
ret = fdt_setprop_u32(fdt, offset, starfive_verb[i].name,
dectoul(starfive_verb[i].value, NULL));
else
ret = fdt_setprop_empty(fdt, offset, starfive_verb[i].name);
if (ret) {
pr_err("%s set prop %s fail.\n", __func__, starfive_verb[i].name);
break;
}
}
}
void spl_perform_fixups(struct spl_image_info *spl_image)
{
u8 version;
version = get_pcb_revision_from_eeprom();
switch (version) {
case 'a':
case 'A':
spl_fdt_fixup_version_a(spl_image->fdt_addr);
break;
case 'b':
case 'B':
default:
spl_fdt_fixup_version_b(spl_image->fdt_addr);
break;
};
/* Update the memory size which read form eeprom or DT */
fdt_fixup_memory(spl_image->fdt_addr, 0x40000000, gd->ram_size);
}
static void jh7110_jtag_init(void)
{
/* nTRST: GPIO36 */
SYS_IOMUX_DOEN(36, HIGH);
SYS_IOMUX_DIN(36, 4);
/* TDI: GPIO61 */
SYS_IOMUX_DOEN(61, HIGH);
SYS_IOMUX_DIN(61, 19);
/* TMS: GPIO63 */
SYS_IOMUX_DOEN(63, HIGH);
SYS_IOMUX_DIN(63, 20);
/* TCK: GPIO60 */
SYS_IOMUX_DOEN(60, HIGH);
SYS_IOMUX_DIN(60, 29);
/* TDO: GPIO44 */
SYS_IOMUX_DOEN(44, 8);
SYS_IOMUX_DOUT(44, 22);
}
int spl_board_init_f(void)
{
int ret;
jh7110_jtag_init();
ret = spl_soc_init();
if (ret) {
debug("JH7110 SPL init failed: %d\n", ret);
return ret;
}
return 0;
}
u32 spl_boot_device(void)
{
u32 mode;
mode = in_le32(JH7110_BOOT_MODE_SELECT_REG)
& JH7110_BOOT_MODE_SELECT_MASK;
switch (mode) {
case 0:
return BOOT_DEVICE_SPI;
case 1:
return BOOT_DEVICE_MMC2;
case 2:
return BOOT_DEVICE_MMC1;
case 3:
return BOOT_DEVICE_UART;
default:
debug("Unsupported boot device 0x%x.\n", mode);
return BOOT_DEVICE_NONE;
}
}
void board_init_f(ulong dummy)
{
int ret;
ret = spl_early_init();
if (ret)
panic("spl_early_init() failed: %d\n", ret);
riscv_cpu_setup();
preloader_console_init();
/* Set the parent clock of cpu_root clock to pll0,
* it must be initialized here
*/
clrsetbits_le32(JH7110_SYS_CRG + JH7110_CLK_CPU_ROOT_OFFSET,
JH7110_CLK_CPU_ROOT_MASK,
BIT(JH7110_CLK_CPU_ROOT_SHIFT));
ret = spl_board_init_f();
if (ret) {
debug("spl_board_init_f init failed: %d\n", ret);
return;
}
}
#if CONFIG_IS_ENABLED(SPL_LOAD_FIT)
int board_fit_config_name_match(const char *name)
{
/* boot using first FIT config */
return 0;
}
#endif
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