--- /dev/null
+/*
+ * Copyright (C) 2014-2015 Freescale Semiconductor, Inc.
+ * Copyright (C) Jasbir Matharu
+ * Copyright (C) UDOO Team
+ *
+ * Author: Breno Lima <breno.lima@nxp.com>
+ * Author: Francesco Montefoschi <francesco.monte@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <asm/arch/clock.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/iomux.h>
+#include <asm/arch/mx6-pins.h>
+#include <asm/gpio.h>
+#include <asm/imx-common/iomux-v3.h>
+#include <mmc.h>
+#include <fsl_esdhc.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/io.h>
+#include <asm/arch/sys_proto.h>
+#include <spl.h>
+#include <linux/sizes.h>
+#include <common.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+enum {
+ UDOO_NEO_TYPE_BASIC,
+ UDOO_NEO_TYPE_BASIC_KS,
+ UDOO_NEO_TYPE_FULL,
+ UDOO_NEO_TYPE_EXTENDED,
+};
+
+#define UART_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
+ 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 WDOG_PAD_CTRL (PAD_CTL_PUE | PAD_CTL_PKE | PAD_CTL_SPEED_MED | \
+ PAD_CTL_DSE_40ohm)
+
+#define BOARD_DETECT_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
+ PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
+ PAD_CTL_DSE_34ohm | PAD_CTL_HYS | PAD_CTL_SRE_FAST)
+#define BOARD_DETECT_PAD_CFG (MUX_PAD_CTRL(BOARD_DETECT_PAD_CTRL) | \
+ MUX_MODE_SION)
+
+int dram_init(void)
+{
+ gd->ram_size = imx_ddr_size();
+ return 0;
+}
+
+static iomux_v3_cfg_t const uart1_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 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_DATA0__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD2_DATA1__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD2_DATA2__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD2_DATA3__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ /* CD pin */
+ MX6_PAD_SD1_DATA0__GPIO6_IO_2 | MUX_PAD_CTRL(NO_PAD_CTRL),
+ /* Power */
+ MX6_PAD_SD1_CMD__GPIO6_IO_1 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const board_recognition_pads[] = {
+ /*Connected to R184*/
+ MX6_PAD_NAND_READY_B__GPIO4_IO_13 | BOARD_DETECT_PAD_CFG,
+ /*Connected to R185*/
+ MX6_PAD_NAND_ALE__GPIO4_IO_0 | BOARD_DETECT_PAD_CFG,
+};
+
+static iomux_v3_cfg_t const usdhc3_pads[] = {
+ /* Configured for WLAN */
+ 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_DATA0__USDHC3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DATA1__USDHC3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DATA2__USDHC3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DATA3__USDHC3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const wdog_b_pad = {
+ MX6_PAD_GPIO1_IO13__GPIO1_IO_13 | MUX_PAD_CTRL(WDOG_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const peri_3v3_pads[] = {
+ MX6_PAD_QSPI1A_DATA0__GPIO4_IO_16 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+static void setup_iomux_uart(void)
+{
+ imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
+}
+
+int board_init(void)
+{
+ /* Address of boot parameters */
+ gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+
+ /*
+ * Because kernel set WDOG_B mux before pad with the commone pinctrl
+ * framwork now and wdog reset will be triggered once set WDOG_B mux
+ * with default pad setting, we set pad setting here to workaround this.
+ * Since imx_iomux_v3_setup_pad also set mux before pad setting, we set
+ * as GPIO mux firstly here to workaround it.
+ */
+ imx_iomux_v3_setup_pad(wdog_b_pad);
+
+ /* Enable PERI_3V3, which is used by SD2, ENET, LVDS, BT */
+ imx_iomux_v3_setup_multiple_pads(peri_3v3_pads,
+ ARRAY_SIZE(peri_3v3_pads));
+
+ /* Active high for ncp692 */
+ gpio_direction_output(IMX_GPIO_NR(4, 16) , 1);
+
+ return 0;
+}
+
+static int get_board_value(void)
+{
+ int r184, r185;
+
+ imx_iomux_v3_setup_multiple_pads(board_recognition_pads,
+ ARRAY_SIZE(board_recognition_pads));
+
+ gpio_direction_input(IMX_GPIO_NR(4, 13));
+ gpio_direction_input(IMX_GPIO_NR(4, 0));
+
+ r184 = gpio_get_value(IMX_GPIO_NR(4, 13));
+ r185 = gpio_get_value(IMX_GPIO_NR(4, 0));
+
+ /*
+ * Machine selection -
+ * Machine r184, r185
+ * ---------------------------------
+ * Basic 0 0
+ * Basic Ks 0 1
+ * Full 1 0
+ * Extended 1 1
+ */
+
+ return (r184 << 1) + r185;
+}
+
+int board_early_init_f(void)
+{
+ setup_iomux_uart();
+
+ return 0;
+}
+
+static struct fsl_esdhc_cfg usdhc_cfg[2] = {
+ {USDHC2_BASE_ADDR, 0, 4},
+ {USDHC3_BASE_ADDR, 0, 4},
+};
+
+#define USDHC2_PWR_GPIO IMX_GPIO_NR(6, 1)
+#define USDHC2_CD_GPIO IMX_GPIO_NR(6, 2)
+
+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 USDHC2_BASE_ADDR:
+ ret = !gpio_get_value(USDHC2_CD_GPIO);
+ break;
+ }
+
+ return ret;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+#ifndef CONFIG_SPL_BUILD
+ int i, ret;
+
+ /*
+ * According to the board_mmc_init() the following map is done:
+ * (U-boot device node) (Physical Port)
+ * mmc0 USDHC2
+ */
+ for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
+ switch (i) {
+ case 0:
+ imx_iomux_v3_setup_multiple_pads(
+ usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
+ usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
+ gpio_direction_input(USDHC2_CD_GPIO);
+ gpio_direction_output(USDHC2_PWR_GPIO, 1);
+ break;
+ case 1:
+ imx_iomux_v3_setup_multiple_pads(
+ usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
+ usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
+ break;
+ default:
+ printf("Warning: you configured more USDHC controllers\
+ (%d) than supported by the board\n", i + 1);
+ return -EINVAL;
+ }
+
+ ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
+ if (ret) {
+ printf("Warning:\
+ failed to initialize mmc dev %d\n", i);
+ return ret;
+ }
+ }
+
+ return 0;
+#else
+ 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 1:
+ imx_iomux_v3_setup_multiple_pads(
+ usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
+ usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
+ usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR;
+ gpio_direction_input(USDHC2_CD_GPIO);
+ gpio_direction_output(USDHC2_PWR_GPIO, 1);
+ break;
+ case 2:
+ imx_iomux_v3_setup_multiple_pads(
+ usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
+ usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
+ usdhc_cfg[1].esdhc_base = USDHC3_BASE_ADDR;
+ break;
+ }
+
+ gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
+ return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
+#endif
+}
+
+char *board_string(void)
+{
+ switch (get_board_value()) {
+ case UDOO_NEO_TYPE_BASIC:
+ return "BASIC";
+ case UDOO_NEO_TYPE_BASIC_KS:
+ return "BASICKS";
+ case UDOO_NEO_TYPE_FULL:
+ return "FULL";
+ case UDOO_NEO_TYPE_EXTENDED:
+ return "EXTENDED";
+ }
+ return "UNDEFINED";
+}
+
+int checkboard(void)
+{
+ printf("Board: UDOO Neo %s\n", board_string());
+ return 0;
+}
+
+int board_late_init(void)
+{
+#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+ setenv("board_name", board_string());
+#endif
+
+ return 0;
+}
+
+#ifdef CONFIG_SPL_BUILD
+
+#include <libfdt.h>
+#include <asm/arch/mx6-ddr.h>
+
+static const struct mx6sx_iomux_ddr_regs mx6_ddr_ioregs = {
+ .dram_dqm0 = 0x00000028,
+ .dram_dqm1 = 0x00000028,
+ .dram_dqm2 = 0x00000028,
+ .dram_dqm3 = 0x00000028,
+ .dram_ras = 0x00000020,
+ .dram_cas = 0x00000020,
+ .dram_odt0 = 0x00000020,
+ .dram_odt1 = 0x00000020,
+ .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 = 0x00000020,
+};
+
+static const struct mx6sx_iomux_grp_regs mx6_grp_ioregs = {
+ .grp_addds = 0x00000020,
+ .grp_ddrmode_ctl = 0x00020000,
+ .grp_ddrpke = 0x00000000,
+ .grp_ddrmode = 0x00020000,
+ .grp_b0ds = 0x00000028,
+ .grp_b1ds = 0x00000028,
+ .grp_ctlds = 0x00000020,
+ .grp_ddr_type = 0x000c0000,
+ .grp_b2ds = 0x00000028,
+ .grp_b3ds = 0x00000028,
+};
+
+static const struct mx6_mmdc_calibration neo_mmcd_calib = {
+ .p0_mpwldectrl0 = 0x000E000B,
+ .p0_mpwldectrl1 = 0x000E0010,
+ .p0_mpdgctrl0 = 0x41600158,
+ .p0_mpdgctrl1 = 0x01500140,
+ .p0_mprddlctl = 0x3A383E3E,
+ .p0_mpwrdlctl = 0x3A383C38,
+};
+
+static const struct mx6_mmdc_calibration neo_basic_mmcd_calib = {
+ .p0_mpwldectrl0 = 0x001E0022,
+ .p0_mpwldectrl1 = 0x001C0019,
+ .p0_mpdgctrl0 = 0x41540150,
+ .p0_mpdgctrl1 = 0x01440138,
+ .p0_mprddlctl = 0x403E4644,
+ .p0_mpwrdlctl = 0x3C3A4038,
+};
+
+/* MT41K256M16 */
+static struct mx6_ddr3_cfg neo_mem_ddr = {
+ .mem_speed = 1600,
+ .density = 4,
+ .width = 16,
+ .banks = 8,
+ .rowaddr = 15,
+ .coladdr = 10,
+ .pagesz = 2,
+ .trcd = 1375,
+ .trcmin = 4875,
+ .trasmin = 3500,
+};
+
+/* MT41K128M16 */
+static struct mx6_ddr3_cfg neo_basic_mem_ddr = {
+ .mem_speed = 1600,
+ .density = 2,
+ .width = 16,
+ .banks = 8,
+ .rowaddr = 14,
+ .coladdr = 10,
+ .pagesz = 2,
+ .trcd = 1375,
+ .trcmin = 4875,
+ .trasmin = 3500,
+};
+
+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(0xFFFFFFFF, &ccm->CCGR7);
+}
+
+static void spl_dram_init(void)
+{
+ int board = get_board_value();
+
+ struct mx6_ddr_sysinfo sysinfo = {
+ .dsize = 1, /* width of data bus: 1 = 32 bits */
+ .cs_density = 24,
+ .ncs = 1,
+ .cs1_mirror = 0,
+ .rtt_wr = 2,
+ .rtt_nom = 2, /* RTT_Nom = RZQ/2 */
+ .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) */
+ };
+
+ mx6sx_dram_iocfg(32, &mx6_ddr_ioregs, &mx6_grp_ioregs);
+ if (board == UDOO_NEO_TYPE_BASIC || board == UDOO_NEO_TYPE_BASIC_KS)
+ mx6_dram_cfg(&sysinfo, &neo_basic_mmcd_calib,
+ &neo_basic_mem_ddr);
+ else
+ mx6_dram_cfg(&sysinfo, &neo_mmcd_calib, &neo_mem_ddr);
+}
+
+void board_init_f(ulong dummy)
+{
+ ccgr_init();
+
+ /* setup AIPS and disable watchdog */
+ arch_cpu_init();
+
+ 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
--- /dev/null
+/*
+ * Copyright 2014-2015 Freescale Semiconductor, Inc.
+ * Copyright Jasbir Matharu
+ * Copyright 2015 UDOO Team
+ *
+ * Configuration settings for the UDOO NEO board.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#include <config_distro_defaults.h>
+#include "mx6_common.h"
+
+#include "imx6_spl.h"
+
+/* Size of malloc() pool */
+#define CONFIG_SYS_MALLOC_LEN (3 * SZ_1M)
+#define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_BOARD_LATE_INIT
+#define CONFIG_MXC_UART
+
+/* MMC Configuration */
+#define CONFIG_SYS_FSL_ESDHC_ADDR USDHC2_BASE_ADDR
+
+/* Command definition */
+#define CONFIG_MXC_UART_BASE UART1_BASE
+#define CONFIG_SYS_FSL_USDHC_NUM 2
+#define CONFIG_SYS_MMC_ENV_DEV 0 /*USDHC2*/
+
+/* Linux only */
+#define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+#define CONFIG_EXTRA_ENV_SETTINGS \
+ "console=ttymxc0,115200\0" \
+ "fdt_high=0xffffffff\0" \
+ "initrd_high=0xffffffff\0" \
+ "fdt_file=undefined\0" \
+ "fdt_addr=0x83000000\0" \
+ "ip_dyn=yes\0" \
+ "mmcdev=0\0" \
+ "mmcrootfstype=ext4\0" \
+ "mmcautodetect=no\0" \
+ "findfdt="\
+ "if test $board_name = BASIC; then " \
+ "setenv fdt_file imx6sx-udoo-neo-basic.dtb; fi; " \
+ "if test $board_name = BASICKS; then " \
+ "setenv fdt_file imx6sx-udoo-neo-basic.dtb; fi; " \
+ "if test $board_name = FULL; then " \
+ "setenv fdt_file imx6sx-udoo-neo-full.dtb; fi; " \
+ "if test $board_name = EXTENDED; then " \
+ "setenv fdt_file imx6sx-udoo-neo-extended.dtb; fi; " \
+ "if test $fdt_file = UNDEFINED; then " \
+ "echo WARNING: Could not determine dtb to use; fi; \0" \
+ "kernel_addr_r=" __stringify(CONFIG_LOADADDR) "\0" \
+ "pxefile_addr_r=" __stringify(CONFIG_LOADADDR) "\0" \
+ "ramdisk_addr_r=0x83000000\0" \
+ "ramdiskaddr=0x83000000\0" \
+ "scriptaddr=" __stringify(CONFIG_LOADADDR) "\0" \
+ BOOTENV
+
+#define BOOT_TARGET_DEVICES(func) \
+ func(MMC, mmc, 0)
+
+#define CONFIG_BOOTCOMMAND \
+ "run findfdt; " \
+ "run distro_bootcmd"
+
+#include <config_distro_bootcmd.h>
+
+/* Miscellaneous configurable options */
+#define CONFIG_SYS_MEMTEST_START 0x80000000
+#define CONFIG_SYS_MEMTEST_END (CONFIG_SYS_MEMTEST_START + 0x10000)
+#define CONFIG_STACKSIZE SZ_128K
+
+/* Physical Memory Map */
+#define CONFIG_NR_DRAM_BANKS 1
+#define PHYS_SDRAM MMDC0_ARB_BASE_ADDR
+#define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM
+#define CONFIG_SYS_INIT_RAM_ADDR IRAM_BASE_ADDR
+#define CONFIG_SYS_INIT_RAM_SIZE IRAM_SIZE
+
+#define CONFIG_SYS_INIT_SP_OFFSET \
+ (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
+#define CONFIG_SYS_INIT_SP_ADDR \
+ (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
+
+/* Environment organization */
+#define CONFIG_ENV_OFFSET (8 * SZ_64K)
+#define CONFIG_ENV_SIZE SZ_8K
+#define CONFIG_ENV_IS_IN_MMC
+
+#endif /* __CONFIG_H */
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