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u-boot/board/freescale/mx6slevk/mx6slevk.c
Shiji Yang 506df9dc58 treewide: rework linker symbol declarations in sections header 
1. Convert all linker symbols to char[] type so that we can get the
   corresponding address by calling array name 'var' or its address
   '&var'. In this way, we can avoid some potential issues[1].
2. Remove unused symbol '_TEXT_BASE'. It has been abandoned and has
   not been referenced by any source code.
3. Move '__data_end' to the arch x86's own sections header as it's
   only used by x86 arch.
4. Remove some duplicate declared linker symbols. Now we use the
   standard header file to declare them.

[1] This patch fixes the boot failure on MIPS target. Error log:
SPL: Image overlaps SPL

Fixes: 1b8a1be1a1 ("spl: spl_legacy: Fix spl_end address")
Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2023-08-09 09:21:42 -04:00

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2013 Freescale Semiconductor, Inc.
*
* Author: Fabio Estevam <fabio.estevam@freescale.com>
*/
#include <init.h>
#include <net.h>
#include <asm/arch/clock.h>
#include <asm/arch/iomux.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/mx6-ddr.h>
#include <asm/arch/mx6-pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/global_data.h>
#include <asm/gpio.h>
#include <asm/mach-imx/iomux-v3.h>
#include <asm/mach-imx/mxc_i2c.h>
#include <asm/io.h>
#include <asm/sections.h>
#include <linux/sizes.h>
#include <common.h>
#include <fsl_esdhc_imx.h>
#include <i2c.h>
#include <mmc.h>
#include <power/pmic.h>
#include <power/pfuze100_pmic.h>
#include "../common/pfuze.h"
DECLARE_GLOBAL_DATA_PTR;
#define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
PAD_CTL_SRE_FAST | PAD_CTL_HYS)
#define USDHC_PAD_CTRL (PAD_CTL_PUS_22K_UP | \
PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
PAD_CTL_SRE_FAST | PAD_CTL_HYS)
#define ENET_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
#define OTGID_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW |\
PAD_CTL_DSE_80ohm | PAD_CTL_HYS | \
PAD_CTL_SRE_FAST)
#define ETH_PHY_POWER IMX_GPIO_NR(4, 21)
int dram_init(void)
{
gd->ram_size = imx_ddr_size();
return 0;
}
static iomux_v3_cfg_t const uart1_pads[] = {
MX6_PAD_UART1_TXD__UART1_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
MX6_PAD_UART1_RXD__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
};
#ifdef CONFIG_SPL_BUILD
static iomux_v3_cfg_t const usdhc1_pads[] = {
/* 8 bit SD */
MX6_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD1_DAT0__USDHC1_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD1_DAT1__USDHC1_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD1_DAT2__USDHC1_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD1_DAT3__USDHC1_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD1_DAT4__USDHC1_DAT4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD1_DAT5__USDHC1_DAT5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD1_DAT6__USDHC1_DAT6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD1_DAT7__USDHC1_DAT7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
/*CD pin*/
MX6_PAD_KEY_ROW7__GPIO_4_7 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
static iomux_v3_cfg_t const usdhc2_pads[] = {
MX6_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD2_DAT0__USDHC2_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD2_DAT1__USDHC2_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD2_DAT2__USDHC2_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD2_DAT3__USDHC2_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
/*CD pin*/
MX6_PAD_SD2_DAT7__GPIO_5_0 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
static iomux_v3_cfg_t const usdhc3_pads[] = {
MX6_PAD_SD3_CLK__USDHC3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_CMD__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_DAT0__USDHC3_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_DAT1__USDHC3_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_DAT2__USDHC3_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_DAT3__USDHC3_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
/*CD pin*/
MX6_PAD_REF_CLK_32K__GPIO_3_22 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
#endif
static void setup_iomux_uart(void)
{
imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
}
int board_mmc_get_env_dev(int devno)
{
return devno;
}
#ifdef CONFIG_DM_PMIC_PFUZE100
int power_init_board(void)
{
struct udevice *dev;
int ret;
u32 dev_id, rev_id, i;
u32 switch_num = 6;
u32 offset = PFUZE100_SW1CMODE;
ret = pmic_get("pfuze100@08", &dev);
if (ret == -ENODEV)
return 0;
if (ret != 0)
return ret;
dev_id = pmic_reg_read(dev, PFUZE100_DEVICEID);
rev_id = pmic_reg_read(dev, PFUZE100_REVID);
printf("PMIC: PFUZE100! DEV_ID=0x%x REV_ID=0x%x\n", dev_id, rev_id);
/* set SW1AB staby volatage 0.975V */
pmic_clrsetbits(dev, PFUZE100_SW1ABSTBY, 0x3f, 0x1b);
/* set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */
pmic_clrsetbits(dev, PFUZE100_SW1ABCONF, 0xc0, 0x40);
/* set SW1C staby volatage 0.975V */
pmic_clrsetbits(dev, PFUZE100_SW1CSTBY, 0x3f, 0x1b);
/* set SW1C/VDDSOC step ramp up time to from 16us to 4us/25mV */
pmic_clrsetbits(dev, PFUZE100_SW1CCONF, 0xc0, 0x40);
/* Init mode to APS_PFM */
pmic_reg_write(dev, PFUZE100_SW1ABMODE, APS_PFM);
for (i = 0; i < switch_num - 1; i++)
pmic_reg_write(dev, offset + i * SWITCH_SIZE, APS_PFM);
return 0;
}
#endif
#ifdef CONFIG_FEC_MXC
static int setup_fec(void)
{
struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
/* clear gpr1[14], gpr1[18:17] to select anatop clock */
clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC_MASK, 0);
return enable_fec_anatop_clock(0, ENET_50MHZ);
}
#endif
int board_early_init_f(void)
{
setup_iomux_uart();
return 0;
}
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
#ifdef CONFIG_FEC_MXC
setup_fec();
#endif
return 0;
}
int checkboard(void)
{
puts("Board: MX6SLEVK\n");
return 0;
}
#ifdef CONFIG_SPL_BUILD
#include <spl.h>
#include <linux/libfdt.h>
#define USDHC1_CD_GPIO IMX_GPIO_NR(4, 7)
#define USDHC2_CD_GPIO IMX_GPIO_NR(5, 0)
#define USDHC3_CD_GPIO IMX_GPIO_NR(3, 22)
static struct fsl_esdhc_cfg usdhc_cfg[3] = {
{USDHC1_BASE_ADDR},
{USDHC2_BASE_ADDR, 0, 4},
{USDHC3_BASE_ADDR, 0, 4},
};
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:
gpio_request(USDHC1_CD_GPIO, "cd1_gpio");
ret = !gpio_get_value(USDHC1_CD_GPIO);
break;
case USDHC2_BASE_ADDR:
gpio_request(USDHC2_CD_GPIO, "cd2_gpio");
ret = !gpio_get_value(USDHC2_CD_GPIO);
break;
case USDHC3_BASE_ADDR:
gpio_request(USDHC3_CD_GPIO, "cd3_gpio");
ret = !gpio_get_value(USDHC3_CD_GPIO);
break;
}
return ret;
}
int board_mmc_init(struct bd_info *bis)
{
struct src *src_regs = (struct src *)SRC_BASE_ADDR;
u32 val;
u32 port;
val = readl(&src_regs->sbmr1);
/* Boot from USDHC */
port = (val >> 11) & 0x3;
switch (port) {
case 0:
imx_iomux_v3_setup_multiple_pads(usdhc1_pads,
ARRAY_SIZE(usdhc1_pads));
gpio_direction_input(USDHC1_CD_GPIO);
usdhc_cfg[0].esdhc_base = USDHC1_BASE_ADDR;
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
break;
case 1:
imx_iomux_v3_setup_multiple_pads(usdhc2_pads,
ARRAY_SIZE(usdhc2_pads));
gpio_direction_input(USDHC2_CD_GPIO);
usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR;
usdhc_cfg[0].max_bus_width = 4;
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
break;
case 2:
imx_iomux_v3_setup_multiple_pads(usdhc3_pads,
ARRAY_SIZE(usdhc3_pads));
gpio_direction_input(USDHC3_CD_GPIO);
usdhc_cfg[0].esdhc_base = USDHC3_BASE_ADDR;
usdhc_cfg[0].max_bus_width = 4;
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
break;
}
gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
}
const struct mx6sl_iomux_ddr_regs mx6_ddr_ioregs = {
.dram_sdqs0 = 0x00003030,
.dram_sdqs1 = 0x00003030,
.dram_sdqs2 = 0x00003030,
.dram_sdqs3 = 0x00003030,
.dram_dqm0 = 0x00000030,
.dram_dqm1 = 0x00000030,
.dram_dqm2 = 0x00000030,
.dram_dqm3 = 0x00000030,
.dram_cas = 0x00000030,
.dram_ras = 0x00000030,
.dram_sdclk_0 = 0x00000028,
.dram_reset = 0x00000030,
.dram_sdba2 = 0x00000000,
.dram_odt0 = 0x00000008,
.dram_odt1 = 0x00000008,
};
const struct mx6sl_iomux_grp_regs mx6_grp_ioregs = {
.grp_b0ds = 0x00000030,
.grp_b1ds = 0x00000030,
.grp_b2ds = 0x00000030,
.grp_b3ds = 0x00000030,
.grp_addds = 0x00000030,
.grp_ctlds = 0x00000030,
.grp_ddrmode_ctl = 0x00020000,
.grp_ddrpke = 0x00000000,
.grp_ddrmode = 0x00020000,
.grp_ddr_type = 0x00080000,
};
const struct mx6_mmdc_calibration mx6_mmcd_calib = {
.p0_mpdgctrl0 = 0x20000000,
.p0_mpdgctrl1 = 0x00000000,
.p0_mprddlctl = 0x4241444a,
.p0_mpwrdlctl = 0x3030312b,
.mpzqlp2ctl = 0x1b4700c7,
};
static struct mx6_lpddr2_cfg mem_ddr = {
.mem_speed = 800,
.density = 4,
.width = 32,
.banks = 8,
.rowaddr = 14,
.coladdr = 10,
.trcd_lp = 2000,
.trppb_lp = 2000,
.trpab_lp = 2250,
.trasmin = 4200,
};
static void ccgr_init(void)
{
struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
writel(0xFFFFFFFF, &ccm->CCGR0);
writel(0xFFFFFFFF, &ccm->CCGR1);
writel(0xFFFFFFFF, &ccm->CCGR2);
writel(0xFFFFFFFF, &ccm->CCGR3);
writel(0xFFFFFFFF, &ccm->CCGR4);
writel(0xFFFFFFFF, &ccm->CCGR5);
writel(0xFFFFFFFF, &ccm->CCGR6);
writel(0x00260324, &ccm->cbcmr);
}
static void spl_dram_init(void)
{
struct mx6_ddr_sysinfo sysinfo = {
.dsize = mem_ddr.width / 32,
.cs_density = 20,
.ncs = 2,
.cs1_mirror = 0,
.walat = 0,
.ralat = 2,
.mif3_mode = 3,
.bi_on = 1,
.rtt_wr = 0, /* LPDDR2 does not need rtt_wr rtt_nom */
.rtt_nom = 0,
.sde_to_rst = 0, /* LPDDR2 does not need this field */
.rst_to_cke = 0x10, /* JEDEC value for LPDDR2: 200us */
.ddr_type = DDR_TYPE_LPDDR2,
.refsel = 0, /* Refresh cycles at 64KHz */
.refr = 3, /* 4 refresh commands per refresh cycle */
};
mx6sl_dram_iocfg(32, &mx6_ddr_ioregs, &mx6_grp_ioregs);
mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr);
}
void board_init_f(ulong dummy)
{
/* setup AIPS and disable watchdog */
arch_cpu_init();
ccgr_init();
/* iomux and setup of i2c */
board_early_init_f();
/* setup GP timer */
timer_init();
/* UART clocks enabled and gd valid - init serial console */
preloader_console_init();
/* DDR initialization */
spl_dram_init();
/* Clear the BSS. */
memset(__bss_start, 0, __bss_end - __bss_start);
/* load/boot image from boot device */
board_init_r(NULL, 0);
}
#endif
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