// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 2017 DENX Software Engineering GmbH, Heiko Schocher * Copyright (c) 2019 Bosch Thermotechnik GmbH * Copyright (c) 2022 DENX Software Engineering GmbH, Philip Oberfichtner */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include DECLARE_GLOBAL_DATA_PTR; #define GPIO_ACC_PLAT_DETECT IMX_GPIO_NR(5, 9) #define GPIO_ACC_RAM_VOLT_DETECT IMX_GPIO_NR(5, 0) #define GPIO_BUZZER IMX_GPIO_NR(1, 18) #define GPIO_LAN1_RESET IMX_GPIO_NR(4, 27) #define GPIO_LAN2_RESET IMX_GPIO_NR(4, 19) #define GPIO_LAN3_RESET IMX_GPIO_NR(4, 18) #define GPIO_USB_HUB_RESET IMX_GPIO_NR(5, 5) #define GPIO_EXP_RS485_RESET IMX_GPIO_NR(4, 16) #define GPIO_TOUCH_RESET IMX_GPIO_NR(1, 20) #define BOARD_INFO_MAGIC 0x19730517 struct board_info { int magic; int board; int rev; }; static struct board_info *detect_board(void); #define PFID_BOARD_ACC 0xe static const char * const name_board[] = { [PFID_BOARD_ACC] = "ACC", }; #define PFID_REV_22 0x8 #define PFID_REV_21 0x9 #define PFID_REV_20 0xa #define PFID_REV_14 0xb #define PFID_REV_13 0xc #define PFID_REV_12 0xd #define PFID_REV_11 0xe #define PFID_REV_10 0xf static const char * const name_revision[] = { [0 ... PFID_REV_10] = "Unknown", [PFID_REV_10] = "1.0", [PFID_REV_11] = "1.1", [PFID_REV_12] = "1.2", [PFID_REV_13] = "1.3", [PFID_REV_14] = "1.4", [PFID_REV_20] = "2.0", [PFID_REV_21] = "2.1", [PFID_REV_22] = "2.2", }; /* * NXP Reset Default: 0x0001B0B0 * - Schmitt trigger input (PAD_CTL_HYS) * - 100K Ohm Pull Up (PAD_CTL_PUS_100K_UP) * - Pull Enabled (PAD_CTL_PUE) * - Pull/Keeper Enabled (PAD_CTL_PKE) * - CMOS output (No PAD_CTL_ODE) * - Medium Speed (PAD_CTL_SPEED_MED) * - 40 Ohm drive strength (PAD_CTL_DSE_40ohm) * - Slow (PAD_CTL_SRE_SLOW) */ /* Input, no pull up/down: 0x0x000100B0 */ #define GPIN_PAD_CTRL (PAD_CTL_HYS \ | PAD_CTL_SPEED_MED \ | PAD_CTL_DSE_40ohm \ | PAD_CTL_SRE_SLOW) /* Input, pull up: 0x0x0001B0B0 */ #define GPIN_PU_PAD_CTRL (PAD_CTL_HYS \ | PAD_CTL_PUS_100K_UP \ | PAD_CTL_PUE \ | PAD_CTL_PKE \ | PAD_CTL_SPEED_MED \ | PAD_CTL_DSE_40ohm \ | PAD_CTL_SRE_SLOW) /* Input, pull down: 0x0x000130B0 */ #define GPIN_PD_PAD_CTRL (PAD_CTL_HYS \ | PAD_CTL_PUS_100K_DOWN \ | PAD_CTL_PUE \ | PAD_CTL_PKE \ | PAD_CTL_SPEED_MED \ | PAD_CTL_DSE_40ohm \ | PAD_CTL_SRE_SLOW) static const iomux_v3_cfg_t board_detect_pads[] = { /* Platform detect */ IOMUX_PADS(PAD_DISP0_DAT15__GPIO5_IO09 | MUX_PAD_CTRL(GPIN_PAD_CTRL)), /* RAM Volt detect */ IOMUX_PADS(PAD_EIM_WAIT__GPIO5_IO00 | MUX_PAD_CTRL(GPIN_PAD_CTRL)), /* PFID 0..9 */ IOMUX_PADS(PAD_NANDF_D0__GPIO2_IO00 | MUX_PAD_CTRL(GPIN_PAD_CTRL)), IOMUX_PADS(PAD_NANDF_D1__GPIO2_IO01 | MUX_PAD_CTRL(GPIN_PAD_CTRL)), IOMUX_PADS(PAD_NANDF_D2__GPIO2_IO02 | MUX_PAD_CTRL(GPIN_PAD_CTRL)), IOMUX_PADS(PAD_NANDF_D3__GPIO2_IO03 | MUX_PAD_CTRL(GPIN_PAD_CTRL)), IOMUX_PADS(PAD_NANDF_D4__GPIO2_IO04 | MUX_PAD_CTRL(GPIN_PAD_CTRL)), IOMUX_PADS(PAD_NANDF_D5__GPIO2_IO05 | MUX_PAD_CTRL(GPIN_PAD_CTRL)), IOMUX_PADS(PAD_NANDF_D6__GPIO2_IO06 | MUX_PAD_CTRL(GPIN_PAD_CTRL)), IOMUX_PADS(PAD_NANDF_D7__GPIO2_IO07 | MUX_PAD_CTRL(GPIN_PAD_CTRL)), IOMUX_PADS(PAD_NANDF_CS3__GPIO6_IO16 | MUX_PAD_CTRL(GPIN_PAD_CTRL)), IOMUX_PADS(PAD_NANDF_CS1__GPIO6_IO14 | MUX_PAD_CTRL(GPIN_PAD_CTRL)), /* Manufacturer */ IOMUX_PADS(PAD_EIM_A24__GPIO5_IO04 | MUX_PAD_CTRL(GPIN_PAD_CTRL)), /* Redundant */ IOMUX_PADS(PAD_NANDF_CS2__GPIO6_IO15 | MUX_PAD_CTRL(GPIN_PU_PAD_CTRL)) }; static int gpio_acc_pfid[] = { IMX_GPIO_NR(2, 0), IMX_GPIO_NR(2, 1), IMX_GPIO_NR(2, 2), IMX_GPIO_NR(2, 3), IMX_GPIO_NR(2, 4), IMX_GPIO_NR(6, 14), IMX_GPIO_NR(6, 15), IMX_GPIO_NR(2, 5), IMX_GPIO_NR(2, 6), IMX_GPIO_NR(2, 7), IMX_GPIO_NR(6, 16), IMX_GPIO_NR(5, 4), }; static int init_gpio(int nr) { int ret; ret = gpio_request(nr, ""); if (ret != 0) { printf("Could not request gpio nr: %d\n", nr); hang(); } ret = gpio_direction_input(nr); if (ret != 0) { printf("Could not set gpio nr: %d to input\n", nr); hang(); } return 0; } /* * We want to detect the board type only once in SPL, * so we store the board_info struct at beginning in IRAM. * * U-Boot itself can read it also, and do not need again * to detect board type. * */ static struct board_info *detect_board(void) { struct board_info *binfo = (struct board_info *)IRAM_BASE_ADDR; int i; if (binfo->magic == BOARD_INFO_MAGIC) return binfo; puts("Board: "); SETUP_IOMUX_PADS(board_detect_pads); init_gpio(GPIO_ACC_PLAT_DETECT); if (gpio_get_value(GPIO_ACC_PLAT_DETECT)) { puts("not supported"); hang(); } else { puts("Bosch "); } for (i = 0; i < sizeof(gpio_acc_pfid) / sizeof(int); i++) init_gpio(gpio_acc_pfid[i]); binfo->board = gpio_get_value(gpio_acc_pfid[0]) << 0 | gpio_get_value(gpio_acc_pfid[1]) << 1 | gpio_get_value(gpio_acc_pfid[2]) << 2 | gpio_get_value(gpio_acc_pfid[11]) << 3; printf("%s ", name_board[binfo->board]); binfo->rev = gpio_get_value(gpio_acc_pfid[7]) << 0 | gpio_get_value(gpio_acc_pfid[8]) << 1 | gpio_get_value(gpio_acc_pfid[9]) << 2 | gpio_get_value(gpio_acc_pfid[10]) << 3; printf("rev: %s\n", name_revision[binfo->rev]); binfo->magic = BOARD_INFO_MAGIC; return binfo; } static void unset_early_gpio(void) { init_gpio(GPIO_LAN1_RESET); init_gpio(GPIO_LAN2_RESET); init_gpio(GPIO_LAN3_RESET); init_gpio(GPIO_USB_HUB_RESET); init_gpio(GPIO_EXP_RS485_RESET); init_gpio(GPIO_TOUCH_RESET); gpio_set_value(GPIO_LAN1_RESET, 1); gpio_set_value(GPIO_LAN2_RESET, 1); gpio_set_value(GPIO_LAN3_RESET, 1); gpio_set_value(GPIO_USB_HUB_RESET, 1); gpio_set_value(GPIO_EXP_RS485_RESET, 1); gpio_set_value(GPIO_TOUCH_RESET, 1); } int board_late_init(void) { struct board_info *binfo = detect_board(); switch (binfo->board) { case PFID_BOARD_ACC: env_set("bootconf", "conf-imx6q-bosch-acc.dtb"); break; default: printf("Unknown board %d\n", binfo->board); break; } unset_early_gpio(); return 0; } int board_init(void) { /* Address of boot parameters */ gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; return 0; } int dram_init(void) { gd->ram_size = imx_ddr_size(); return 0; } #if IS_ENABLED(CONFIG_SPL_BUILD) #include #include #include #include #include #include #include /* Early * - Buzzer -> GPIO IN, Pull-Down (PWM enabled by Kernel later-on, lacks of an * external pull-down resistor) * - Touch clean reset on every boot * - Ethernet(s), USB Hub, Expansion RS485 -> Clean reset on each u-boot init */ static const iomux_v3_cfg_t early_pads[] = { IOMUX_PADS(PAD_SD1_CMD__GPIO1_IO18 | MUX_PAD_CTRL(GPIN_PD_PAD_CTRL)), /* Buzzer PWM */ IOMUX_PADS(PAD_DISP0_DAT6__GPIO4_IO27 | MUX_PAD_CTRL(GPIN_PD_PAD_CTRL)), /* #FEC_RESET_B */ IOMUX_PADS(PAD_DI0_PIN2__GPIO4_IO18 | MUX_PAD_CTRL(GPIN_PD_PAD_CTRL)), /* #ETH1_RESET */ IOMUX_PADS(PAD_DI0_PIN3__GPIO4_IO19 | MUX_PAD_CTRL(GPIN_PD_PAD_CTRL)), /* #ETH2_RESET */ IOMUX_PADS(PAD_DISP0_DAT11__GPIO5_IO05 | MUX_PAD_CTRL(GPIN_PD_PAD_CTRL)), /* #USB Reset */ IOMUX_PADS(PAD_DI0_DISP_CLK__GPIO4_IO16 | MUX_PAD_CTRL(GPIN_PD_PAD_CTRL)), /* #UART_RESET */ IOMUX_PADS(PAD_SD1_CLK__GPIO1_IO20 | MUX_PAD_CTRL(GPIN_PD_PAD_CTRL)), /* #CTOUCH_RESET */ }; static void setup_iomux_early(void) { SETUP_IOMUX_PADS(early_pads); } static void set_early_gpio(void) { init_gpio(GPIO_BUZZER); init_gpio(GPIO_LAN1_RESET); init_gpio(GPIO_LAN2_RESET); init_gpio(GPIO_LAN3_RESET); init_gpio(GPIO_USB_HUB_RESET); init_gpio(GPIO_EXP_RS485_RESET); init_gpio(GPIO_TOUCH_RESET); /* Reset signals are active low */ gpio_set_value(GPIO_BUZZER, 0); gpio_set_value(GPIO_LAN1_RESET, 0); gpio_set_value(GPIO_LAN2_RESET, 0); gpio_set_value(GPIO_LAN3_RESET, 0); gpio_set_value(GPIO_USB_HUB_RESET, 0); gpio_set_value(GPIO_EXP_RS485_RESET, 0); gpio_set_value(GPIO_TOUCH_RESET, 0); } /* UART */ #define UART_PAD_CTRL \ (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \ PAD_CTL_SRE_FAST | PAD_CTL_HYS) #undef UART_PAD_CTRL #define UART_PAD_CTRL 0x1b0b1 static const iomux_v3_cfg_t uart2_pads[] = { IOMUX_PADS(PAD_SD3_DAT4__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)), IOMUX_PADS(PAD_SD3_DAT5__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)), IOMUX_PADS(PAD_SD3_CMD__UART2_CTS_B | MUX_PAD_CTRL(UART_PAD_CTRL)), IOMUX_PADS(PAD_SD3_CLK__UART2_RTS_B | MUX_PAD_CTRL(UART_PAD_CTRL)), }; static void setup_iomux_uart(void) { SETUP_IOMUX_PADS(uart2_pads); } void spl_board_init(void) { } static const struct mx6dq_iomux_ddr_regs acc_mx6d_ddr_ioregs = { .dram_sdclk_0 = 0x00008038, .dram_sdclk_1 = 0x00008038, .dram_cas = 0x00008028, .dram_ras = 0x00008028, .dram_reset = 0x00000028, .dram_sdcke0 = 0x00003000, .dram_sdcke1 = 0x00003000, .dram_sdba2 = 0x00008000, .dram_sdodt0 = 0x00000028, .dram_sdodt1 = 0x00000028, .dram_sdqs0 = 0x00008038, .dram_sdqs1 = 0x00008038, .dram_sdqs2 = 0x00008038, .dram_sdqs3 = 0x00008038, .dram_sdqs4 = 0x00008038, .dram_sdqs5 = 0x00008038, .dram_sdqs6 = 0x00008038, .dram_sdqs7 = 0x00008038, .dram_dqm0 = 0x00008038, .dram_dqm1 = 0x00008038, .dram_dqm2 = 0x00008038, .dram_dqm3 = 0x00008038, .dram_dqm4 = 0x00008038, .dram_dqm5 = 0x00008038, .dram_dqm6 = 0x00008038, .dram_dqm7 = 0x00008038, }; static const struct mx6dq_iomux_grp_regs acc_mx6d_grp_ioregs = { .grp_ddr_type = 0x000C0000, .grp_ddrmode_ctl = 0x00020000, .grp_ddrpke = 0x00000000, .grp_addds = 0x00000030, .grp_ctlds = 0x00000028, .grp_ddrmode = 0x00020000, .grp_b0ds = 0x00000038, .grp_b1ds = 0x00000038, .grp_b2ds = 0x00000038, .grp_b3ds = 0x00000038, .grp_b4ds = 0x00000038, .grp_b5ds = 0x00000038, .grp_b6ds = 0x00000038, .grp_b7ds = 0x00000038, }; static const struct mx6_mmdc_calibration acc_mx6d_mmdc_calib = { .p0_mpwldectrl0 = 0x0020001F, .p0_mpwldectrl1 = 0x00280021, .p1_mpwldectrl0 = 0x00120028, .p1_mpwldectrl1 = 0x000D001F, .p0_mpdgctrl0 = 0x43340342, .p0_mpdgctrl1 = 0x03300325, .p1_mpdgctrl0 = 0x4334033E, .p1_mpdgctrl1 = 0x03280270, .p0_mprddlctl = 0x46373B3E, .p1_mprddlctl = 0x3B383544, .p0_mpwrdlctl = 0x36383E40, .p1_mpwrdlctl = 0x4030433A, }; /* Micron MT41K128M16JT-125 (standard - 1600,CL=11) * !!! i.MX6 does NOT support data rates higher than DDR3-1066 !!! * So this setting is actually invalid! * static const struct mx6_ddr3_cfg acc_mx6d_mem_ddr3_1600 = { .mem_speed = 1600, .density = 2, .width = 16, .banks = 8, .rowaddr = 14, .coladdr = 10, .pagesz = 2, .trcd = 1375, .trcmin = 4875, .trasmin = 3500, .SRT = 0, }; */ /* Micron MT41K128M16JT-125 is backward-compatible with 1333,CL=9 (-15E) and 1066,CL=7 (-187E) * Lowering to 1066 saves on ACC ~0.25 Watt at DC In with negligible performance loss * width set to 64, as four chips are used on acc (4 * 16 = 64) */ static const struct mx6_ddr3_cfg acc_mx6d_mem_ddr3_1066 = { .mem_speed = 1066, .density = 2, .width = 64, .banks = 8, .rowaddr = 14, .coladdr = 10, .pagesz = 2, .trcd = 1313, // 13.125ns .trcmin = 5063, // 50.625ns .trasmin = 3750, // 37.5ns .SRT = 0, // Set to 1 for temperatures above 85°C }; static const struct mx6_ddr_sysinfo acc_mx6d_ddr_info = { .ddr_type = DDR_TYPE_DDR3, /* width of data bus:0=16,1=32,2=64 */ .dsize = 2, .cs_density = 32, /* 32Gb per CS */ .ncs = 1, /* single chip select */ .cs1_mirror = 0, .rtt_wr = 1, /* DDR3_RTT_60_OHM, RTT_Wr = RZQ/4 */ .rtt_nom = 1, /* DDR3_RTT_60_OHM, RTT_Nom = RZQ/4 */ .walat = 0, /* Write additional latency */ .ralat = 5, /* Read additional latency */ .mif3_mode = 3, /* Command prediction working mode */ .bi_on = 1, /* Bank interleaving enabled */ .sde_to_rst = 0x33, /* 14 cycles, 200us (JEDEC default) */ .rst_to_cke = 0x33, /* 33 cycles, 500us (JEDEC default) */ }; #define ACC_SPREAD_SPECTRUM_STOP 0x0fa #define ACC_SPREAD_SPECTRUM_STEP 0x001 #define ACC_SPREAD_SPECTRUM_DENOM 0x190 static void ccgr_init(void) { struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; /* Turn clocks on/off */ writel(0x00C0000F, &ccm->CCGR0); writel(0x0030FC00, &ccm->CCGR1); writel(0x03FF0033, &ccm->CCGR2); writel(0x3FF3300F, &ccm->CCGR3); writel(0x0003C300, &ccm->CCGR4); writel(0x0F3000C3, &ccm->CCGR5); writel(0x00000FFF, &ccm->CCGR6); /* Enable spread spectrum */ writel(BM_ANADIG_PLL_528_SS_ENABLE | BF_ANADIG_PLL_528_SS_STOP(ACC_SPREAD_SPECTRUM_STOP) | BF_ANADIG_PLL_528_SS_STEP(ACC_SPREAD_SPECTRUM_STEP), &ccm->analog_pll_528_ss); writel(BF_ANADIG_PLL_528_DENOM_B(ACC_SPREAD_SPECTRUM_DENOM), &ccm->analog_pll_528_denom); } /* MMC board initialization is needed till adding DM support in SPL */ #if IS_ENABLED(CONFIG_FSL_ESDHC_IMX) && !IS_ENABLED(CONFIG_DM_MMC) #include #include static const iomux_v3_cfg_t usdhc2_pads[] = { IOMUX_PADS(PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(0x00017069)), IOMUX_PADS(PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(0x00010038)), IOMUX_PADS(PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(0x00017069)), IOMUX_PADS(PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(0x00017069)), IOMUX_PADS(PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(0x00017069)), IOMUX_PADS(PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(0x00017069)), IOMUX_PADS(PAD_GPIO_4__GPIO1_IO04 | MUX_PAD_CTRL(0x0001B0B0)), /* CD */ }; static const iomux_v3_cfg_t usdhc4_pads[] = { IOMUX_PADS(PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(0x00017059)), IOMUX_PADS(PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(0x00010059)), IOMUX_PADS(PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(0x00017059)), IOMUX_PADS(PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(0x00017059)), IOMUX_PADS(PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(0x00017059)), IOMUX_PADS(PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(0x00017059)), IOMUX_PADS(PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(0x00017059)), IOMUX_PADS(PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(0x00017059)), IOMUX_PADS(PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(0x00017059)), IOMUX_PADS(PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(0x00017059)), }; struct fsl_esdhc_cfg usdhc_cfg[2] = { {USDHC2_BASE_ADDR, 1, 4}, {USDHC4_BASE_ADDR, 1, 8}, }; #define USDHC2_CD_GPIO IMX_GPIO_NR(1, 4) int board_mmc_getcd(struct mmc *mmc) { struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; int ret = 0; detect_board(); switch (cfg->esdhc_base) { case USDHC2_BASE_ADDR: return !gpio_get_value(USDHC2_CD_GPIO); case USDHC4_BASE_ADDR: return 1; /* eMMC always present */ } return ret; } int board_mmc_init(struct bd_info *bis) { int i, ret; gpio_direction_input(USDHC2_CD_GPIO); /* * According to the board_mmc_init() the following map is done: * (U-Boot device node) (Physical Port) * mmc0 USDHC2 * mmc1 USDHC4 */ for (i = 0; i < CFG_SYS_FSL_USDHC_NUM; i++) { switch (i) { case 0: SETUP_IOMUX_PADS(usdhc2_pads); usdhc_cfg[i].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK); break; case 1: SETUP_IOMUX_PADS(usdhc4_pads); usdhc_cfg[i].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK); break; default: printf("Warning - USDHC%d controller not supporting\n", i + 1); return 0; } ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]); if (ret) { printf("Warning: failed to initialize mmc dev %d\n", i); return ret; } } return 0; } #endif void board_boot_order(u32 *spl_boot_list) { u32 bmode = imx6_src_get_boot_mode(); u8 boot_dev = BOOT_DEVICE_MMC1; detect_board(); switch ((bmode & IMX6_BMODE_MASK) >> IMX6_BMODE_SHIFT) { case IMX6_BMODE_SD: case IMX6_BMODE_ESD: /* SD/eSD - BOOT_DEVICE_MMC1 */ if (IS_ENABLED(CONFIG_SYS_BOOT_EMMC)) { /* * boot from SD is not allowed, if boot from eMMC is * configured. */ puts("SD boot not allowed\n"); spl_boot_list[0] = BOOT_DEVICE_NONE; return; } boot_dev = BOOT_DEVICE_MMC1; break; case IMX6_BMODE_MMC: case IMX6_BMODE_EMMC: /* MMC/eMMC */ boot_dev = BOOT_DEVICE_MMC2; break; default: /* Default - BOOT_DEVICE_MMC1 */ printf("Wrong board boot order\n"); break; } spl_boot_list[0] = boot_dev; } static void setup_ddr(void) { struct board_info *binfo = detect_board(); switch (binfo->rev) { case PFID_REV_20: case PFID_REV_21: case PFID_REV_22: default: /* Rev 2 board has i.MX6 Dual with 64-bit RAM */ mx6dq_dram_iocfg(acc_mx6d_mem_ddr3_1066.width, &acc_mx6d_ddr_ioregs, &acc_mx6d_grp_ioregs); mx6_dram_cfg(&acc_mx6d_ddr_info, &acc_mx6d_mmdc_calib, &acc_mx6d_mem_ddr3_1066); /* Perform DDR DRAM calibration */ udelay(100); mmdc_do_write_level_calibration(&acc_mx6d_ddr_info); mmdc_do_dqs_calibration(&acc_mx6d_ddr_info); break; } } void board_init_f(ulong dummy) { /* setup AIPS and disable watchdog power-down counter (only enabled after reset) */ arch_cpu_init(); ccgr_init(); gpr_init(); /* setup GP timer */ timer_init(); /* Enable device tree and early DM support*/ spl_early_init(); /* Setup early required pinmuxes */ setup_iomux_early(); set_early_gpio(); /* Setup UART pinmux */ setup_iomux_uart(); /* UART clocks enabled and gd valid - init serial console */ preloader_console_init(); setup_ddr(); /* Clear the BSS. */ memset(__bss_start, 0, __bss_end - __bss_start); /* load/boot image from boot device */ board_init_r(NULL, 0); } #endif #if IS_ENABLED(CONFIG_USB_EHCI_MX6) #define USB_OTHERREGS_OFFSET 0x800 #define UCTRL_PWR_POL BIT(9) int board_usb_phy_mode(int port) { if (port == 1) return USB_INIT_HOST; else return usb_phy_mode(port); } int board_ehci_hcd_init(int port) { u32 *usbnc_usb_ctrl; if (port > 1) return -EINVAL; usbnc_usb_ctrl = (u32 *)(USB_BASE_ADDR + USB_OTHERREGS_OFFSET + port * 4); /* Set Power polarity */ setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL); return 0; } #endif int board_fit_config_name_match(const char *name) { if (!strcmp(name, "imx6q-bosch-acc")) return 0; return -1; } void reset_cpu(void) { puts("Hanging CPU for watchdog reset!\n"); hang(); } #if CONFIG_IS_ENABLED(SHOW_BOOT_PROGRESS) void show_boot_progress(int val) { u32 fuseval; int ret; if (val < 0) val *= -1; switch (val) { case BOOTSTAGE_ID_ENTER_CLI_LOOP: printf("autoboot failed, check fuse\n"); ret = fuse_read(0, 6, &fuseval); if (ret == 0 && (fuseval & 0x2) == 0x0) { printf("Enter cmdline, as device not closed\n"); return; } ret = fuse_read(5, 7, &fuseval); if (ret == 0 && fuseval == 0x0) { printf("Enter cmdline, as it is a Development device\n"); return; } panic("do not enter cmdline"); break; } } #endif