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u-boot/board/technexion/pico-imx7d/spl.c
Tom Rini d678a59d2d Revert "Merge patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"" 
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay
Ethernet"' I failed to notice that b4 noticed it was based on next and
so took that as the base commit and merged that part of next to master.

This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing
changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-19 08:16:36 -06:00

270 lines
6.6 KiB
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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2018 Technexion Ltd.
*
* Author: Richard Hu <richard.hu@technexion.com>
*/
#include <common.h>
#include <cpu_func.h>
#include <init.h>
#include <asm/arch/clock.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/mx7-pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch-mx7/mx7-ddr.h>
#include <asm/mach-imx/iomux-v3.h>
#include <asm/mach-imx/boot_mode.h>
#include <asm/gpio.h>
#include <asm/sections.h>
#include <fsl_esdhc_imx.h>
#include <spl.h>
#if defined(CONFIG_SPL_BUILD)
#ifdef CONFIG_SPL_OS_BOOT
int spl_start_uboot(void)
{
/* Break into full U-Boot on 'c' */
if (serial_tstc() && serial_getc() == 'c')
return 1;
return 0;
}
#endif
static struct ddrc ddrc_regs_val = {
.mstr = 0x01040001,
.rfshtmg = 0x00400046,
.init1 = 0x00690000,
.init0 = 0x00020083,
.init3 = 0x09300004,
.init4 = 0x04080000,
.init5 = 0x00100004,
.rankctl = 0x0000033F,
.dramtmg0 = 0x09081109,
.dramtmg1 = 0x0007020d,
.dramtmg2 = 0x03040407,
.dramtmg3 = 0x00002006,
.dramtmg4 = 0x04020205,
.dramtmg5 = 0x03030202,
.dramtmg8 = 0x00000803,
.zqctl0 = 0x00800020,
.dfitmg0 = 0x02098204,
.dfitmg1 = 0x00030303,
.dfiupd0 = 0x80400003,
.dfiupd1 = 0x00100020,
.dfiupd2 = 0x80100004,
.addrmap4 = 0x00000F0F,
.odtcfg = 0x06000604,
.odtmap = 0x00000001,
.rfshtmg = 0x00400046,
.dramtmg0 = 0x09081109,
.addrmap0 = 0x0000001f,
.addrmap1 = 0x00080808,
.addrmap2 = 0x00000000,
.addrmap3 = 0x00000000,
.addrmap4 = 0x00000f0f,
.addrmap5 = 0x07070707,
.addrmap6 = 0x0f0f0707,
};
static struct ddrc_mp ddrc_mp_val = {
.pctrl_0 = 0x00000001,
};
static struct ddr_phy ddr_phy_regs_val = {
.phy_con0 = 0x17420f40,
.phy_con1 = 0x10210100,
.phy_con4 = 0x00060807,
.mdll_con0 = 0x1010007e,
.drvds_con0 = 0x00000d6e,
.cmd_sdll_con0 = 0x00000010,
.offset_lp_con0 = 0x0000000f,
.offset_rd_con0 = 0x08080808,
.offset_wr_con0 = 0x08080808,
};
static struct mx7_calibration calib_param = {
.num_val = 5,
.values = {
0x0E407304,
0x0E447304,
0x0E447306,
0x0E447304,
0x0E447304,
},
};
static void gpr_init(void)
{
struct iomuxc_gpr_base_regs *gpr_regs =
(struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
writel(0x4F400005, &gpr_regs->gpr[1]);
}
/*
* Revision Detection
*
* GPIO1_12 GPIO1_13
* 0 0 1GB DDR3
* 0 1 2GB DDR3
* 1 0 512MB DDR3
*/
static int imx7d_pico_detect_board(void)
{
gpio_direction_input(IMX_GPIO_NR(1, 12));
gpio_direction_input(IMX_GPIO_NR(1, 13));
return gpio_get_value(IMX_GPIO_NR(1, 12)) << 1 |
gpio_get_value(IMX_GPIO_NR(1, 13));
}
static void ddr_init(void)
{
switch (imx7d_pico_detect_board()) {
case 0:
ddrc_regs_val.addrmap6 = 0x0f070707;
break;
case 1:
ddrc_regs_val.addrmap0 = 0x0000001f;
ddrc_regs_val.addrmap1 = 0x00181818;
ddrc_regs_val.addrmap4 = 0x00000f0f;
ddrc_regs_val.addrmap5 = 0x04040404;
ddrc_regs_val.addrmap6 = 0x04040404;
break;
}
mx7_dram_cfg(&ddrc_regs_val, &ddrc_mp_val, &ddr_phy_regs_val,
&calib_param);
}
void board_init_f(ulong dummy)
{
arch_cpu_init();
gpr_init();
board_early_init_f();
timer_init();
preloader_console_init();
ddr_init();
memset(__bss_start, 0, __bss_end - __bss_start);
board_init_r(NULL, 0);
}
void reset_cpu(void)
{
}
#define USDHC_PAD_CTRL (PAD_CTL_DSE_3P3V_32OHM | PAD_CTL_SRE_SLOW | \
PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PUS_PU47KOHM)
#define USDHC1_CD_GPIO IMX_GPIO_NR(5, 0)
/* EMMC/SD */
static const iomux_v3_cfg_t usdhc1_pads[] = {
MX7D_PAD_SD1_CLK__SD1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX7D_PAD_SD1_CMD__SD1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX7D_PAD_SD1_DATA0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX7D_PAD_SD1_DATA1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX7D_PAD_SD1_DATA2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX7D_PAD_SD1_DATA3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX7D_PAD_SD1_CD_B__GPIO5_IO0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
};
#define USDHC3_CD_GPIO IMX_GPIO_NR(1, 14)
static const iomux_v3_cfg_t usdhc3_emmc_pads[] = {
MX7D_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX7D_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX7D_PAD_SD3_DATA0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX7D_PAD_SD3_DATA1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX7D_PAD_SD3_DATA2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX7D_PAD_SD3_DATA3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX7D_PAD_SD3_DATA4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX7D_PAD_SD3_DATA5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX7D_PAD_SD3_DATA6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX7D_PAD_SD3_DATA7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX7D_PAD_GPIO1_IO14__GPIO1_IO14 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
};
static struct fsl_esdhc_cfg usdhc_cfg[2] = {
{USDHC3_BASE_ADDR},
{USDHC1_BASE_ADDR},
};
int board_mmc_getcd(struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
int ret = 0;
switch (cfg->esdhc_base) {
case USDHC1_BASE_ADDR:
ret = !gpio_get_value(USDHC1_CD_GPIO);
break;
case USDHC3_BASE_ADDR:
ret = !gpio_get_value(USDHC3_CD_GPIO);
break;
}
return ret;
}
int board_mmc_init(struct bd_info *bis)
{
int ret;
u32 index;
/*
* Following map is done:
* (USDHC) (Physical Port)
* usdhc3 SOM MicroSD/MMC
* usdhc1 Carrier board MicroSD
* Always set boot USDHC as mmc0
*/
imx_iomux_v3_setup_multiple_pads(usdhc3_emmc_pads,
ARRAY_SIZE(usdhc3_emmc_pads));
gpio_direction_input(USDHC3_CD_GPIO);
imx_iomux_v3_setup_multiple_pads(usdhc1_pads,
ARRAY_SIZE(usdhc1_pads));
gpio_direction_input(USDHC1_CD_GPIO);
switch (get_boot_device()) {
case SD1_BOOT:
usdhc_cfg[0].esdhc_base = USDHC1_BASE_ADDR;
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
usdhc_cfg[0].max_bus_width = 4;
usdhc_cfg[1].esdhc_base = USDHC3_BASE_ADDR;
usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
usdhc_cfg[1].max_bus_width = 4;
break;
case MMC3_BOOT:
usdhc_cfg[0].esdhc_base = USDHC3_BASE_ADDR;
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
usdhc_cfg[0].max_bus_width = 8;
usdhc_cfg[1].esdhc_base = USDHC1_BASE_ADDR;
usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
usdhc_cfg[1].max_bus_width = 4;
break;
case SD3_BOOT:
default:
usdhc_cfg[0].esdhc_base = USDHC3_BASE_ADDR;
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
usdhc_cfg[0].max_bus_width = 4;
usdhc_cfg[1].esdhc_base = USDHC1_BASE_ADDR;
usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
usdhc_cfg[1].max_bus_width = 4;
break;
}
for (index = 0; index < CFG_SYS_FSL_USDHC_NUM; ++index) {
ret = fsl_esdhc_initialize(bis, &usdhc_cfg[index]);
if (ret)
return ret;
}
return 0;
}
#endif
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