// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (C) 2014-2015 Freescale Semiconductor, Inc. * Copyright (C) Jasbir Matharu * Copyright (C) UDOO Team * * Author: Breno Lima * Author: Francesco Montefoschi */ #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; 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 I2C_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ PAD_CTL_ODE) #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \ PAD_CTL_SPEED_MED | \ PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST) #define ENET_CLK_PAD_CTRL (PAD_CTL_SPEED_MED | \ PAD_CTL_DSE_120ohm | PAD_CTL_SRE_FAST) #define ENET_RX_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ PAD_CTL_SPEED_MED | PAD_CTL_SRE_FAST) #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; } #ifdef CONFIG_SYS_I2C_MXC #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), }, }; #endif #if CONFIG_IS_ENABLED(POWER_LEGACY) int power_init_board(void) { struct pmic *p; int ret; unsigned int reg, rev_id; ret = power_pfuze3000_init(PFUZE3000_I2C_BUS); if (ret) return ret; p = pmic_get("PFUZE3000"); ret = pmic_probe(p); if (ret) return ret; pmic_reg_read(p, PFUZE3000_DEVICEID, ®); pmic_reg_read(p, PFUZE3000_REVID, &rev_id); printf("PMIC: PFUZE3000 DEV_ID=0x%x REV_ID=0x%x\n", reg, rev_id); /* disable Low Power Mode during standby mode */ pmic_reg_read(p, PFUZE3000_LDOGCTL, ®); reg |= 0x1; ret = pmic_reg_write(p, PFUZE3000_LDOGCTL, reg); if (ret) return ret; ret = pmic_reg_write(p, PFUZE3000_SW1AMODE, 0xc); if (ret) return ret; ret = pmic_reg_write(p, PFUZE3000_SW1BMODE, 0xc); if (ret) return ret; ret = pmic_reg_write(p, PFUZE3000_SW2MODE, 0xc); if (ret) return ret; ret = pmic_reg_write(p, PFUZE3000_SW3MODE, 0xc); if (ret) return ret; /* set SW1A standby voltage 0.975V */ pmic_reg_read(p, PFUZE3000_SW1ASTBY, ®); reg &= ~0x3f; reg |= PFUZE3000_SW1AB_SETP(9750); ret = pmic_reg_write(p, PFUZE3000_SW1ASTBY, reg); if (ret) return ret; /* set SW1B standby voltage 0.975V */ pmic_reg_read(p, PFUZE3000_SW1BSTBY, ®); reg &= ~0x3f; reg |= PFUZE3000_SW1AB_SETP(9750); ret = pmic_reg_write(p, PFUZE3000_SW1BSTBY, reg); if (ret) return ret; /* set SW1A/VDD_ARM_IN step ramp up time from 16us to 4us/25mV */ pmic_reg_read(p, PFUZE3000_SW1ACONF, ®); reg &= ~0xc0; reg |= 0x40; ret = pmic_reg_write(p, PFUZE3000_SW1ACONF, reg); if (ret) return ret; /* set SW1B/VDD_SOC_IN step ramp up time from 16us to 4us/25mV */ pmic_reg_read(p, PFUZE3000_SW1BCONF, ®); reg &= ~0xc0; reg |= 0x40; ret = pmic_reg_write(p, PFUZE3000_SW1BCONF, reg); if (ret) return ret; /* set VDD_ARM_IN to 1.350V */ pmic_reg_read(p, PFUZE3000_SW1AVOLT, ®); reg &= ~0x3f; reg |= PFUZE3000_SW1AB_SETP(13500); ret = pmic_reg_write(p, PFUZE3000_SW1AVOLT, reg); if (ret) return ret; /* set VDD_SOC_IN to 1.350V */ pmic_reg_read(p, PFUZE3000_SW1BVOLT, ®); reg &= ~0x3f; reg |= PFUZE3000_SW1AB_SETP(13500); ret = pmic_reg_write(p, PFUZE3000_SW1BVOLT, reg); if (ret) return ret; /* set DDR_1_5V to 1.350V */ pmic_reg_read(p, PFUZE3000_SW3VOLT, ®); reg &= ~0x0f; reg |= PFUZE3000_SW3_SETP(13500); ret = pmic_reg_write(p, PFUZE3000_SW3VOLT, reg); if (ret) return ret; /* set VGEN2_1V5 to 1.5V */ pmic_reg_read(p, PFUZE3000_VLDO2CTL, ®); reg &= ~0x0f; reg |= PFUZE3000_VLDO_SETP(15000); /* enable */ reg |= 0x10; ret = pmic_reg_write(p, PFUZE3000_VLDO2CTL, reg); if (ret) return ret; return 0; } #endif 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 phy_control_pads[] = { /* 25MHz Ethernet PHY Clock */ MX6_PAD_ENET2_RX_CLK__ENET2_REF_CLK_25M | MUX_PAD_CTRL(ENET_CLK_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 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)); } static int setup_fec(void) { struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR; int reg; imx_iomux_v3_setup_multiple_pads(phy_control_pads, ARRAY_SIZE(phy_control_pads)); /* Reset PHY */ gpio_direction_output(IMX_GPIO_NR(2, 1) , 0); udelay(10000); gpio_set_value(IMX_GPIO_NR(2, 1), 1); udelay(100); reg = readl(&anatop->pll_enet); reg |= BM_ANADIG_PLL_ENET_REF_25M_ENABLE; writel(reg, &anatop->pll_enet); return enable_fec_anatop_clock(0, ENET_25MHZ); } 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); #ifdef CONFIG_SYS_I2C_MXC setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1); #endif 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(); setup_fec(); return 0; } static 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 env_set("board_name", board_string()); #endif return 0; } #ifdef CONFIG_SPL_BUILD #include #include 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