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|
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2016 samtec automotive software & electronics gmbh
* Copyright (C) 2017-2019 softing automotive electronics gmbH
*
* Author: Christoph Fritz <chf.fritz@googlemail.com>
*/
#include <init.h>
#include <asm/arch/clock.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/iomux.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/mx6-pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/gpio.h>
#include <asm/mach-imx/iomux-v3.h>
#include <asm/io.h>
#include <asm/mach-imx/mxc_i2c.h>
#include <env.h>
#include <linux/sizes.h>
#include <common.h>
#include <fsl_esdhc_imx.h>
#include <mmc.h>
#include <i2c.h>
#include <miiphy.h>
#include <netdev.h>
#include <power/pmic.h>
#include <power/pfuze100_pmic.h>
#include <usb.h>
#include <usb/ehci-ci.h>
#include <pwm.h>
#include <wait_bit.h>
DECLARE_GLOBAL_DATA_PTR;
#define UART_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | \
PAD_CTL_PKE | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
PAD_CTL_SRE_FAST)
#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PKE | \
PAD_CTL_SPEED_HIGH | PAD_CTL_DSE_48ohm | \
PAD_CTL_SRE_FAST)
#define ENET_CLK_PAD_CTRL PAD_CTL_DSE_34ohm
#define ENET_RX_PAD_CTRL (PAD_CTL_PKE | \
PAD_CTL_PUS_100K_DOWN | PAD_CTL_SPEED_HIGH | \
PAD_CTL_SRE_FAST)
#define I2C_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | \
PAD_CTL_PKE | PAD_CTL_ODE | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_40ohm)
#define USDHC_CLK_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST)
#define USDHC_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | \
PAD_CTL_PKE | PAD_CTL_SPEED_MED | PAD_CTL_DSE_80ohm | \
PAD_CTL_SRE_FAST)
#define USDHC_RESET_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | \
PAD_CTL_PKE | PAD_CTL_SPEED_MED | PAD_CTL_DSE_80ohm)
#define GPIO_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | \
PAD_CTL_PKE)
int dram_init(void)
{
gd->ram_size = imx_ddr_size();
return 0;
}
static iomux_v3_cfg_t const pwm_led_pads[] = {
MX6_PAD_RGMII2_RD2__PWM2_OUT | MUX_PAD_CTRL(NO_PAD_CTRL), /* green */
MX6_PAD_RGMII2_TD2__PWM6_OUT | MUX_PAD_CTRL(NO_PAD_CTRL), /* red */
MX6_PAD_RGMII2_RD3__PWM1_OUT | MUX_PAD_CTRL(NO_PAD_CTRL), /* blue */
};
static int board_net_init(void)
{
struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
unsigned char eth1addr[6];
int ret;
/* just to get second mac address */
imx_get_mac_from_fuse(1, eth1addr);
if (!env_get("eth1addr") && is_valid_ethaddr(eth1addr))
eth_env_set_enetaddr("eth1addr", eth1addr);
/*
* Generate phy reference clock via pin IOMUX ENET_REF_CLK1/2 by erasing
* ENET1/2_TX_CLK_DIR gpr1[14:13], so that reference clock is driven by
* ref_enetpll0/1 and enable ENET1/2_TX_CLK output driver.
*/
clrsetbits_le32(&iomuxc_regs->gpr[1],
IOMUX_GPR1_FEC1_CLOCK_MUX2_SEL_MASK |
IOMUX_GPR1_FEC2_CLOCK_MUX2_SEL_MASK,
IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK |
IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK);
ret = enable_fec_anatop_clock(0, ENET_50MHZ);
if (ret)
goto eth_fail;
ret = enable_fec_anatop_clock(1, ENET_50MHZ);
if (ret)
goto eth_fail;
return ret;
eth_fail:
printf("FEC MXC: %s:failed (%i)\n", __func__, ret);
return ret;
}
#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
/* I2C1 for PMIC */
static struct i2c_pads_info i2c_pad_info1 = {
.scl = {
.i2c_mode = MX6_PAD_GPIO1_IO00__I2C1_SCL | PC,
.gpio_mode = MX6_PAD_GPIO1_IO00__GPIO1_IO_0 | PC,
.gp = IMX_GPIO_NR(1, 0),
},
.sda = {
.i2c_mode = MX6_PAD_GPIO1_IO01__I2C1_SDA | PC,
.gpio_mode = MX6_PAD_GPIO1_IO01__GPIO1_IO_1 | PC,
.gp = IMX_GPIO_NR(1, 1),
},
};
static struct pmic *pfuze_init(unsigned char i2cbus)
{
struct pmic *p;
int ret;
u32 reg;
ret = power_pfuze100_init(i2cbus);
if (ret)
return NULL;
p = pmic_get("PFUZE100");
ret = pmic_probe(p);
if (ret)
return NULL;
pmic_reg_read(p, PFUZE100_DEVICEID, ®);
printf("PMIC: PFUZE100 ID=0x%02x\n", reg);
/* Set SW1AB stanby volage to 0.975V */
pmic_reg_read(p, PFUZE100_SW1ABSTBY, ®);
reg &= ~SW1x_STBY_MASK;
reg |= SW1x_0_975V;
pmic_reg_write(p, PFUZE100_SW1ABSTBY, reg);
/* Set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */
pmic_reg_read(p, PFUZE100_SW1ABCONF, ®);
reg &= ~SW1xCONF_DVSSPEED_MASK;
reg |= SW1xCONF_DVSSPEED_4US;
pmic_reg_write(p, PFUZE100_SW1ABCONF, reg);
/* Set SW1C standby voltage to 0.975V */
pmic_reg_read(p, PFUZE100_SW1CSTBY, ®);
reg &= ~SW1x_STBY_MASK;
reg |= SW1x_0_975V;
pmic_reg_write(p, PFUZE100_SW1CSTBY, reg);
/* Set SW1C/VDDSOC step ramp up time from 16us to 4us/25mV */
pmic_reg_read(p, PFUZE100_SW1CCONF, ®);
reg &= ~SW1xCONF_DVSSPEED_MASK;
reg |= SW1xCONF_DVSSPEED_4US;
pmic_reg_write(p, PFUZE100_SW1CCONF, reg);
return p;
}
static int pfuze_mode_init(struct pmic *p, u32 mode)
{
unsigned char offset, i, switch_num;
u32 id;
int ret;
pmic_reg_read(p, PFUZE100_DEVICEID, &id);
id = id & 0xf;
if (id == 0) {
switch_num = 6;
offset = PFUZE100_SW1CMODE;
} else if (id == 1) {
switch_num = 4;
offset = PFUZE100_SW2MODE;
} else {
printf("Not supported, id=%d\n", id);
return -EINVAL;
}
ret = pmic_reg_write(p, PFUZE100_SW1ABMODE, mode);
if (ret < 0) {
printf("Set SW1AB mode error!\n");
return ret;
}
for (i = 0; i < switch_num - 1; i++) {
ret = pmic_reg_write(p, offset + i * SWITCH_SIZE, mode);
if (ret < 0) {
printf("Set switch 0x%x mode error!\n",
offset + i * SWITCH_SIZE);
return ret;
}
}
return ret;
}
int power_init_board(void)
{
struct pmic *p;
int ret;
p = pfuze_init(I2C_PMIC);
if (!p)
return -ENODEV;
ret = pfuze_mode_init(p, APS_PFM);
if (ret < 0)
return ret;
return 0;
}
#ifdef CONFIG_USB_EHCI_MX6
static iomux_v3_cfg_t const usb_otg_pads[] = {
/* OGT1 */
MX6_PAD_GPIO1_IO09__USB_OTG1_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
MX6_PAD_GPIO1_IO10__ANATOP_OTG1_ID | MUX_PAD_CTRL(NO_PAD_CTRL),
/* OTG2 */
MX6_PAD_GPIO1_IO12__USB_OTG2_PWR | MUX_PAD_CTRL(NO_PAD_CTRL)
};
static void setup_iomux_usb(void)
{
imx_iomux_v3_setup_multiple_pads(usb_otg_pads,
ARRAY_SIZE(usb_otg_pads));
}
int board_usb_phy_mode(int port)
{
if (port == 1)
return USB_INIT_HOST;
else
return usb_phy_mode(port);
}
#endif
#ifdef CONFIG_PWM_IMX
static int set_pwm_leds(void)
{
int ret;
imx_iomux_v3_setup_multiple_pads(pwm_led_pads,
ARRAY_SIZE(pwm_led_pads));
/* enable backlight PWM 2, green LED */
ret = pwm_init(1, 0, 0);
if (ret)
goto error;
/* duty cycle 200ns, period: 8000ns */
ret = pwm_config(1, 200, 8000);
if (ret)
goto error;
ret = pwm_enable(1);
if (ret)
goto error;
/* enable backlight PWM 1, blue LED */
ret = pwm_init(0, 0, 0);
if (ret)
goto error;
/* duty cycle 200ns, period: 8000ns */
ret = pwm_config(0, 200, 8000);
if (ret)
goto error;
ret = pwm_enable(0);
if (ret)
goto error;
/* enable backlight PWM 6, red LED */
ret = pwm_init(5, 0, 0);
if (ret)
goto error;
/* duty cycle 200ns, period: 8000ns */
ret = pwm_config(5, 200, 8000);
if (ret)
goto error;
ret = pwm_enable(5);
error:
return ret;
}
#else
static int set_pwm_leds(void)
{
return 0;
}
#endif
#define ADCx_HC0 0x00
#define ADCx_HS 0x08
#define ADCx_HS_C0 BIT(0)
#define ADCx_R0 0x0c
#define ADCx_CFG 0x14
#define ADCx_CFG_SWMODE 0x308
#define ADCx_GC 0x18
#define ADCx_GC_CAL BIT(7)
static int read_adc(u32 *val)
{
int ret;
void __iomem *b = map_physmem(ADC1_BASE_ADDR, 0x100, MAP_NOCACHE);
/* use software mode */
writel(ADCx_CFG_SWMODE, b + ADCx_CFG);
/* start auto calibration */
setbits_le32(b + ADCx_GC, ADCx_GC_CAL);
ret = wait_for_bit_le32(b + ADCx_GC, ADCx_GC_CAL, ADCx_GC_CAL, 10, 0);
if (ret)
goto adc_exit;
/* start conversion */
writel(0, b + ADCx_HC0);
/* wait for conversion */
ret = wait_for_bit_le32(b + ADCx_HS, ADCx_HS_C0, ADCx_HS_C0, 10, 0);
if (ret)
goto adc_exit;
/* read result */
*val = readl(b + ADCx_R0);
adc_exit:
if (ret)
printf("ADC failure (ret=%i)\n", ret);
unmap_physmem(b, MAP_NOCACHE);
return ret;
}
#define VAL_UPPER 2498
#define VAL_LOWER 1550
static int set_pin_state(void)
{
u32 val;
int ret;
ret = read_adc(&val);
if (ret)
return ret;
if (val >= VAL_UPPER)
env_set("pin_state", "connected");
else if (val < VAL_UPPER && val > VAL_LOWER)
env_set("pin_state", "open");
else
env_set("pin_state", "button");
return ret;
}
int board_late_init(void)
{
int ret;
ret = set_pwm_leds();
if (ret)
return ret;
ret = set_pin_state();
return ret;
}
int board_early_init_f(void)
{
setup_iomux_usb();
return 0;
}
int board_init(void)
{
/* Address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
#ifdef CONFIG_SYS_I2C_MXC
setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
#endif
return board_net_init();
}
int checkboard(void)
{
puts("Board: VIN|ING 2000\n");
return 0;
}
#define PCIE_PHY_PUP_REQ BIT(7)
void board_preboot_os(void)
{
struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
struct gpc *gpc_regs = (struct gpc *)GPC_BASE_ADDR;
/* Bring the PCI power domain up, so that old vendorkernel works. */
setbits_le32(&iomuxc_regs->gpr[12], IOMUXC_GPR12_TEST_POWERDOWN);
setbits_le32(&iomuxc_regs->gpr[5], IOMUXC_GPR5_PCIE_BTNRST);
setbits_le32(&gpc_regs->cntr, PCIE_PHY_PUP_REQ);
}
#ifdef CONFIG_SPL_BUILD
#include <linux/libfdt.h>
#include <spl.h>
#include <asm/arch/mx6-ddr.h>
static struct fsl_esdhc_cfg usdhc_cfg = { USDHC4_BASE_ADDR };
static iomux_v3_cfg_t const pcie_pads[] = {
MX6_PAD_NAND_DATA02__GPIO4_IO_6 | MUX_PAD_CTRL(GPIO_PAD_CTRL),
};
static iomux_v3_cfg_t const uart_pads[] = {
MX6_PAD_GPIO1_IO04__UART1_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
MX6_PAD_GPIO1_IO05__UART1_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
};
static iomux_v3_cfg_t const usdhc4_pads[] = {
MX6_PAD_SD4_CLK__USDHC4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_CMD__USDHC4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_DATA0__USDHC4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_DATA1__USDHC4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_DATA2__USDHC4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_DATA3__USDHC4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_DATA4__USDHC4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_DATA5__USDHC4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_DATA6__USDHC4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_DATA7__USDHC4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
};
static void vining2000_spl_setup_iomux_pcie(void)
{
imx_iomux_v3_setup_multiple_pads(pcie_pads, ARRAY_SIZE(pcie_pads));
}
static void vining2000_spl_setup_iomux_uart(void)
{
imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
}
int board_mmc_init(bd_t *bis)
{
struct src *src_regs = (struct src *)SRC_BASE_ADDR;
u32 val;
u32 port;
val = readl(&src_regs->sbmr1);
if ((val & 0xc0) != 0x40) {
printf("Not boot from USDHC!\n");
return -EINVAL;
}
port = (val >> 11) & 0x3;
printf("port %d\n", port);
switch (port) {
case 3:
imx_iomux_v3_setup_multiple_pads(
usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
usdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
usdhc_cfg.esdhc_base = USDHC4_BASE_ADDR;
break;
}
gd->arch.sdhc_clk = usdhc_cfg.sdhc_clk;
return fsl_esdhc_initialize(bis, &usdhc_cfg);
}
int board_mmc_getcd(struct mmc *mmc)
{
return 1;
}
const struct mx6sx_iomux_ddr_regs mx6_ddr_ioregs = {
.dram_dqm0 = 0x00000028,
.dram_dqm1 = 0x00000028,
.dram_dqm2 = 0x00000028,
.dram_dqm3 = 0x00000028,
.dram_ras = 0x00000028,
.dram_cas = 0x00000028,
.dram_odt0 = 0x00000028,
.dram_odt1 = 0x00000028,
.dram_sdba2 = 0x00000000,
.dram_sdcke0 = 0x00003000,
.dram_sdcke1 = 0x00003000,
.dram_sdclk_0 = 0x00000030,
.dram_sdqs0 = 0x00000028,
.dram_sdqs1 = 0x00000028,
.dram_sdqs2 = 0x00000028,
.dram_sdqs3 = 0x00000028,
.dram_reset = 0x00000028,
};
const struct mx6sx_iomux_grp_regs mx6_grp_ioregs = {
.grp_addds = 0x00000028,
.grp_b0ds = 0x00000028,
.grp_b1ds = 0x00000028,
.grp_b2ds = 0x00000028,
.grp_b3ds = 0x00000028,
.grp_ctlds = 0x00000028,
.grp_ddr_type = 0x000c0000,
.grp_ddrmode = 0x00020000,
.grp_ddrmode_ctl = 0x00020000,
.grp_ddrpke = 0x00000000,
};
const struct mx6_mmdc_calibration mx6_mmcd_calib = {
.p0_mpwldectrl0 = 0x0022001C,
.p0_mpwldectrl1 = 0x001F001A,
.p0_mpdgctrl0 = 0x01380134,
.p0_mpdgctrl1 = 0x0124011C,
.p0_mprddlctl = 0x42404444,
.p0_mpwrdlctl = 0x36383C38,
};
static struct mx6_ddr3_cfg mem_ddr = {
.mem_speed = 1600,
.density = 4,
.width = 32,
.banks = 8,
.rowaddr = 15,
.coladdr = 10,
.pagesz = 2,
.trcd = 1391,
.trcmin = 4875,
.trasmin = 3500,
};
static void ccgr_init(void)
{
struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
writel(0xF000000F, &ccm->CCGR0); /* AIPS_TZ{1,2,3} */
writel(0x303C0000, &ccm->CCGR1); /* GPT, OCRAM */
writel(0x00FFFCC0, &ccm->CCGR2); /* IPMUX, I2C1, I2C3 */
writel(0x3F300030, &ccm->CCGR3); /* OCRAM, MMDC, ENET */
writel(0x0000C003, &ccm->CCGR4); /* PCI, PL301 */
writel(0x0F0330C3, &ccm->CCGR5); /* UART, ROM */
writel(0x00000F00, &ccm->CCGR6); /* SDHI4, EIM */
}
static void vining2000_spl_dram_init(void)
{
struct mx6_ddr_sysinfo sysinfo = {
.dsize = mem_ddr.width / 32,
.cs_density = 24,
.ncs = 1,
.cs1_mirror = 0,
.rtt_wr = 1, /* RTT_wr = RZQ/4 */
.rtt_nom = 1, /* RTT_Nom = RZQ/4 */
.walat = 1, /* Write additional latency */
.ralat = 5, /* Read additional latency */
.mif3_mode = 3, /* Command prediction working mode */
.bi_on = 1, /* Bank interleaving enabled */
.sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */
.rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */
.ddr_type = DDR_TYPE_DDR3,
.refsel = 1, /* Refresh cycles at 32KHz */
.refr = 7, /* 8 refresh commands per refresh cycle */
};
mx6sx_dram_iocfg(mem_ddr.width, &mx6_ddr_ioregs, &mx6_grp_ioregs);
mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr);
/* Perform DDR DRAM calibration */
udelay(100);
mmdc_do_write_level_calibration(&sysinfo);
mmdc_do_dqs_calibration(&sysinfo);
}
void board_init_f(ulong dummy)
{
/* setup AIPS and disable watchdog */
arch_cpu_init();
ccgr_init();
/* iomux setup */
vining2000_spl_setup_iomux_pcie();
vining2000_spl_setup_iomux_uart();
/* setup GP timer */
timer_init();
/* reset the PCIe device */
gpio_set_value(IMX_GPIO_NR(4, 6), 1);
udelay(50);
gpio_set_value(IMX_GPIO_NR(4, 6), 0);
/* UART clocks enabled and gd valid - init serial console */
preloader_console_init();
/* DDR initialization */
vining2000_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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