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u-boot/board/freescale/mx6slevk/mx6slevk.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

446 lines
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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2013 Freescale Semiconductor, Inc.
*
* Author: Fabio Estevam <fabio.estevam@freescale.com>
*/
#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/gpio.h>
#include <asm/mach-imx/iomux-v3.h>
#include <asm/mach-imx/mxc_i2c.h>
#include <asm/mach-imx/spi.h>
#include <asm/io.h>
#include <linux/sizes.h>
#include <common.h>
#include <fsl_esdhc.h>
#include <i2c.h>
#include <mmc.h>
#include <netdev.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 SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
#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 iomux_v3_cfg_t const fec_pads[] = {
MX6_PAD_FEC_MDC__FEC_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_FEC_MDIO__FEC_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_FEC_CRS_DV__FEC_RX_DV | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_FEC_RXD0__FEC_RX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_FEC_RXD1__FEC_RX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_FEC_TX_EN__FEC_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_FEC_TXD0__FEC_TX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_FEC_TXD1__FEC_TX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_FEC_REF_CLK__FEC_REF_OUT | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_FEC_RX_ER__GPIO_4_19 | MUX_PAD_CTRL(NO_PAD_CTRL),
MX6_PAD_FEC_TX_CLK__GPIO_4_21 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
#ifdef CONFIG_MXC_SPI
static iomux_v3_cfg_t ecspi1_pads[] = {
MX6_PAD_ECSPI1_MISO__ECSPI_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
MX6_PAD_ECSPI1_MOSI__ECSPI_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
MX6_PAD_ECSPI1_SCLK__ECSPI_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
MX6_PAD_ECSPI1_SS0__GPIO4_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
int board_spi_cs_gpio(unsigned bus, unsigned cs)
{
return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(4, 11)) : -1;
}
static void setup_spi(void)
{
imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
}
#endif
static void setup_iomux_uart(void)
{
imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
}
static void setup_iomux_fec(void)
{
imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
/* Power up LAN8720 PHY */
gpio_request(ETH_PHY_POWER, "eth_pwr");
gpio_direction_output(ETH_PHY_POWER , 1);
udelay(15000);
}
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", &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
int board_eth_init(bd_t *bis)
{
setup_iomux_fec();
return cpu_eth_init(bis);
}
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_MXC_SPI
gpio_request(IMX_GPIO_NR(4, 11), "spi_cs");
setup_spi();
#endif
#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(bd_t *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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