+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright (C) 2016 Stefano Babic <sbabic@denx.de>
- */
-
-#include <common.h>
-#include <command.h>
-#include <init.h>
-#include <net.h>
-#include <asm/arch/clock.h>
-#include <asm/arch/imx-regs.h>
-#include <asm/arch/iomux.h>
-#include <asm/arch/mx6-pins.h>
-#include <asm/global_data.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <asm/gpio.h>
-#include <asm/mach-imx/iomux-v3.h>
-#include <asm/mach-imx/video.h>
-#include <mmc.h>
-#include <fsl_esdhc_imx.h>
-#include <asm/arch/crm_regs.h>
-#include <asm/io.h>
-#include <asm/arch/sys_proto.h>
-#include <spl.h>
-#include <netdev.h>
-#include <miiphy.h>
-#include <micrel.h>
-
-#include <common.h>
-#include <malloc.h>
-#include <fuse.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_PKE | PAD_CTL_PUE | \
- PAD_CTL_PUS_22K_UP | PAD_CTL_SPEED_LOW | \
- PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
-
-#define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
- PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
- PAD_CTL_ODE | PAD_CTL_SRE_FAST)
-
-#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
- PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
-
-static iomux_v3_cfg_t const uart1_pads[] = {
- IOMUX_PADS(PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
- IOMUX_PADS(PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
-};
-
-static iomux_v3_cfg_t const gpios_pads[] = {
- IOMUX_PADS(PAD_EIM_A24__GPIO5_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL)),
-};
-
-static iomux_v3_cfg_t const usdhc2_pads[] = {
- IOMUX_PADS(PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
- IOMUX_PADS(PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
- IOMUX_PADS(PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
- IOMUX_PADS(PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
- IOMUX_PADS(PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
- IOMUX_PADS(PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
- IOMUX_PADS(PAD_NANDF_D0__GPIO2_IO00 | MUX_PAD_CTRL(NO_PAD_CTRL)),/* CD */
-};
-
-static iomux_v3_cfg_t const enet_pads[] = {
- IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL)),
- IOMUX_PADS(PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
- IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
- IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
- IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
- IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
- IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
- IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
- IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
- IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
- IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
- IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
- IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK |
- MUX_PAD_CTRL(ENET_PAD_CTRL)),
- IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL |
- MUX_PAD_CTRL(ENET_PAD_CTRL)),
- IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL |
- MUX_PAD_CTRL(ENET_PAD_CTRL)),
- IOMUX_PADS(PAD_ENET_CRS_DV__GPIO1_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL)),
-};
-
-iomux_v3_cfg_t const enet_pads1[] = {
- /* pin 35 - 1 (PHY_AD2) on reset */
- IOMUX_PADS(PAD_RGMII_RXC__GPIO6_IO30 | MUX_PAD_CTRL(NO_PAD_CTRL)),
- /* pin 32 - 1 - (MODE0) all */
- IOMUX_PADS(PAD_RGMII_RD0__GPIO6_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL)),
- /* pin 31 - 1 - (MODE1) all */
- IOMUX_PADS(PAD_RGMII_RD1__GPIO6_IO27 | MUX_PAD_CTRL(NO_PAD_CTRL)),
- /* pin 28 - 1 - (MODE2) all */
- IOMUX_PADS(PAD_RGMII_RD2__GPIO6_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL)),
- /* pin 27 - 1 - (MODE3) all */
- IOMUX_PADS(PAD_RGMII_RD3__GPIO6_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL)),
- /* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */
- IOMUX_PADS(PAD_RGMII_RX_CTL__GPIO6_IO24 | MUX_PAD_CTRL(NO_PAD_CTRL)),
- /* pin 42 PHY nRST */
- IOMUX_PADS(PAD_ENET_CRS_DV__GPIO1_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL)),
-};
-
-static int mx6_rgmii_rework(struct phy_device *phydev)
-{
-
- /* min rx data delay */
- ksz9021_phy_extended_write(phydev, MII_KSZ9021_EXT_RGMII_RX_DATA_SKEW,
- 0x0);
- /* min tx data delay */
- ksz9021_phy_extended_write(phydev, MII_KSZ9021_EXT_RGMII_TX_DATA_SKEW,
- 0x0);
- /* max rx/tx clock delay, min rx/tx control */
- ksz9021_phy_extended_write(phydev, MII_KSZ9021_EXT_RGMII_CLOCK_SKEW,
- 0xf0f0);
-
- return 0;
-}
-
-int board_phy_config(struct phy_device *phydev)
-{
- mx6_rgmii_rework(phydev);
-
- if (phydev->drv->config)
- return phydev->drv->config(phydev);
-
- return 0;
-}
-
-#define ENET_NRST IMX_GPIO_NR(1, 25)
-
-void setup_iomux_enet(void)
-{
- SETUP_IOMUX_PADS(enet_pads);
-
-}
-
-int board_eth_init(struct bd_info *bis)
-{
- uint32_t base = IMX_FEC_BASE;
- struct mii_dev *bus = NULL;
- struct phy_device *phydev = NULL;
- int ret;
-
- setup_iomux_enet();
-
- bus = fec_get_miibus(base, -1);
- if (!bus)
- return -EINVAL;
- /* scan phy */
- phydev = phy_find_by_mask(bus, (0xf << CONFIG_FEC_MXC_PHYADDR),
- PHY_INTERFACE_MODE_RGMII);
-
- if (!phydev) {
- ret = -EINVAL;
- goto free_bus;
- }
- ret = fec_probe(bis, -1, base, bus, phydev);
- if (ret)
- goto free_phydev;
-
- return 0;
-
-free_phydev:
- free(phydev);
-free_bus:
- free(bus);
- return ret;
-}
-
-int board_early_init_f(void)
-{
- SETUP_IOMUX_PADS(uart1_pads);
-
- return 0;
-}
-
-int board_init(void)
-{
- /* Address of boot parameters */
- gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
-
- /* Take in reset the ATMega processor */
- SETUP_IOMUX_PADS(gpios_pads);
- gpio_direction_output(IMX_GPIO_NR(5, 4), 0);
-
- return 0;
-}
-
-int dram_init(void)
-{
- gd->ram_size = imx_ddr_size();
-
- return 0;
-}
-
-struct fsl_esdhc_cfg usdhc_cfg[1] = {
- {USDHC2_BASE_ADDR, 0},
-};
-
-#define USDHC2_CD_GPIO IMX_GPIO_NR(2, 0)
-int board_mmc_getcd(struct mmc *mmc)
-{
- struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
- int ret = 0;
-
- if (cfg->esdhc_base == USDHC2_BASE_ADDR)
- ret = 1;
-
- return ret;
-}
-
-int board_mmc_init(struct bd_info *bis)
-{
- int ret;
-
- SETUP_IOMUX_PADS(usdhc2_pads);
- gpio_direction_input(USDHC2_CD_GPIO);
- usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
- usdhc_cfg[0].max_bus_width = 4;
-
- ret = fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
- if (ret) {
- printf("Warning: failed to initialize mmc dev \n");
- return ret;
- }
-
- return 0;
-}
-
-#if defined(CONFIG_SPL_BUILD)
-#include <asm/arch/mx6-ddr.h>
-
-/*
- * Driving strength:
- * 0x30 == 40 Ohm
- * 0x28 == 48 Ohm
- */
-#define IMX6SDL_DRIVE_STRENGTH 0x230
-
-
-/* configure MX6SOLO/DUALLITE mmdc DDR io registers */
-struct mx6sdl_iomux_ddr_regs mx6sdl_ddr_ioregs = {
- .dram_sdclk_0 = IMX6SDL_DRIVE_STRENGTH,
- .dram_sdclk_1 = IMX6SDL_DRIVE_STRENGTH,
- .dram_cas = IMX6SDL_DRIVE_STRENGTH,
- .dram_ras = IMX6SDL_DRIVE_STRENGTH,
- .dram_reset = IMX6SDL_DRIVE_STRENGTH,
- .dram_sdcke0 = IMX6SDL_DRIVE_STRENGTH,
- .dram_sdcke1 = IMX6SDL_DRIVE_STRENGTH,
- .dram_sdba2 = 0x00000000,
- .dram_sdodt0 = IMX6SDL_DRIVE_STRENGTH,
- .dram_sdodt1 = IMX6SDL_DRIVE_STRENGTH,
- .dram_sdqs0 = IMX6SDL_DRIVE_STRENGTH,
- .dram_sdqs1 = IMX6SDL_DRIVE_STRENGTH,
- .dram_sdqs2 = IMX6SDL_DRIVE_STRENGTH,
- .dram_sdqs3 = IMX6SDL_DRIVE_STRENGTH,
- .dram_sdqs4 = IMX6SDL_DRIVE_STRENGTH,
- .dram_sdqs5 = IMX6SDL_DRIVE_STRENGTH,
- .dram_sdqs6 = IMX6SDL_DRIVE_STRENGTH,
- .dram_sdqs7 = IMX6SDL_DRIVE_STRENGTH,
- .dram_dqm0 = IMX6SDL_DRIVE_STRENGTH,
- .dram_dqm1 = IMX6SDL_DRIVE_STRENGTH,
- .dram_dqm2 = IMX6SDL_DRIVE_STRENGTH,
- .dram_dqm3 = IMX6SDL_DRIVE_STRENGTH,
- .dram_dqm4 = IMX6SDL_DRIVE_STRENGTH,
- .dram_dqm5 = IMX6SDL_DRIVE_STRENGTH,
- .dram_dqm6 = IMX6SDL_DRIVE_STRENGTH,
- .dram_dqm7 = IMX6SDL_DRIVE_STRENGTH,
-};
-
-/* configure MX6SOLO/DUALLITE mmdc GRP io registers */
-struct mx6sdl_iomux_grp_regs mx6sdl_grp_ioregs = {
- .grp_ddr_type = 0x000c0000,
- .grp_ddrmode_ctl = 0x00020000,
- .grp_ddrpke = 0x00000000,
- .grp_addds = IMX6SDL_DRIVE_STRENGTH,
- .grp_ctlds = IMX6SDL_DRIVE_STRENGTH,
- .grp_ddrmode = 0x00020000,
- .grp_b0ds = IMX6SDL_DRIVE_STRENGTH,
- .grp_b1ds = IMX6SDL_DRIVE_STRENGTH,
- .grp_b2ds = IMX6SDL_DRIVE_STRENGTH,
- .grp_b3ds = IMX6SDL_DRIVE_STRENGTH,
- .grp_b4ds = IMX6SDL_DRIVE_STRENGTH,
- .grp_b5ds = IMX6SDL_DRIVE_STRENGTH,
- .grp_b6ds = IMX6SDL_DRIVE_STRENGTH,
- .grp_b7ds = IMX6SDL_DRIVE_STRENGTH,
-};
-
-/* MT41K128M16JT-125 */
-static struct mx6_ddr3_cfg mt41k128m16jt_125 = {
- /* quad = 1066, duallite = 800 */
- .mem_speed = 1066,
- .density = 2,
- .width = 16,
- .banks = 8,
- .rowaddr = 14,
- .coladdr = 10,
- .pagesz = 2,
- .trcd = 1375,
- .trcmin = 4875,
- .trasmin = 3500,
- .SRT = 0,
-};
-
-static struct mx6_mmdc_calibration mx6dl_1g_mmdc_calib = {
- .p0_mpwldectrl0 = 0x0043004E,
- .p0_mpwldectrl1 = 0x003D003F,
- .p1_mpwldectrl0 = 0x00230021,
- .p1_mpwldectrl1 = 0x0028003E,
- .p0_mpdgctrl0 = 0x42580250,
- .p0_mpdgctrl1 = 0x0238023C,
- .p1_mpdgctrl0 = 0x422C0238,
- .p1_mpdgctrl1 = 0x02180228,
- .p0_mprddlctl = 0x44464A46,
- .p1_mprddlctl = 0x44464A42,
- .p0_mpwrdlctl = 0x36343236,
- .p1_mpwrdlctl = 0x36343230,
-};
-
-/* DDR 64bit 1GB */
-static struct mx6_ddr_sysinfo mem_qdl = {
- .dsize = 2,
- .cs1_mirror = 0,
- /* config for full 4GB range so that get_mem_size() works */
- .cs_density = 32,
- .ncs = 1,
- .bi_on = 1,
- .rtt_nom = 1,
- .rtt_wr = 1,
- .ralat = 5,
- .walat = 0,
- .mif3_mode = 3,
- .rst_to_cke = 0x23,
- .sde_to_rst = 0x10,
- .refsel = 1, /* Refresh cycles at 32KHz */
- .refr = 7, /* 8 refresh commands per refresh cycle */
-};
-
-static void ccgr_init(void)
-{
- struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
-
- /* set the default clock gate to save power */
- writel(0x00C03F3F, &ccm->CCGR0);
- writel(0x0030FC03, &ccm->CCGR1);
- writel(0x0FFFC000, &ccm->CCGR2);
- writel(0x3FF00000, &ccm->CCGR3);
- writel(0x00FFF300, &ccm->CCGR4);
- writel(0xFFFFFFFF, &ccm->CCGR5);
- writel(0x000003FF, &ccm->CCGR6);
-}
-
-static void spl_dram_init(void)
-{
- if (is_cpu_type(MXC_CPU_MX6DL)) {
- mt41k128m16jt_125.mem_speed = 800;
- mem_qdl.rtt_nom = 1;
- mem_qdl.rtt_wr = 1;
-
- mx6sdl_dram_iocfg(64, &mx6sdl_ddr_ioregs, &mx6sdl_grp_ioregs);
- mx6_dram_cfg(&mem_qdl, &mx6dl_1g_mmdc_calib, &mt41k128m16jt_125);
- } else {
- printf("Wrong CPU for this board\n");
- return;
- }
-
- udelay(100);
-
-#ifdef CONFIG_MX6_DDRCAL
-
- /* Perform DDR DRAM calibration */
- mmdc_do_write_level_calibration(&mem_qdl);
- mmdc_do_dqs_calibration(&mem_qdl);
-#endif
-}
-
-static void check_bootcfg(void)
-{
- u32 val5, val6;
-
- fuse_sense(0, 5, &val5);
- fuse_sense(0, 6, &val6);
- /* Check if boot from MMC */
- if (val6 & 0x10) {
- puts("BT_FUSE_SEL already fused, will do nothing\n");
- return;
- }
- fuse_prog(0, 5, 0x00000840);
- /* BT_FUSE_SEL */
- fuse_prog(0, 6, 0x00000010);
-
- do_reset(NULL, 0, 0, NULL);
-}
-
-void board_init_f(ulong dummy)
-{
- ccgr_init();
-
- /* setup AIPS and disable watchdog */
- arch_cpu_init();
-
- gpr_init();
-
- /* iomux */
- 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();
-
- /* Set fuses for new boards and reboot if not set */
- check_bootcfg();
-
- /* 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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