| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * DHCOM DH-iMX6 PDK SPL support |
| * |
| * Copyright (C) 2017 Marek Vasut <marex@denx.de> |
| */ |
| |
| #include <common.h> |
| #include <asm/arch/clock.h> |
| #include <asm/arch/crm_regs.h> |
| #include <asm/arch/imx-regs.h> |
| #include <asm/arch/iomux.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/boot_mode.h> |
| #include <asm/mach-imx/iomux-v3.h> |
| #include <asm/mach-imx/mxc_i2c.h> |
| #include <asm/io.h> |
| #include <errno.h> |
| #include <fuse.h> |
| #include <fsl_esdhc_imx.h> |
| #include <i2c.h> |
| #include <mmc.h> |
| #include <spl.h> |
| |
| #define ENET_PAD_CTRL \ |
| (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \ |
| PAD_CTL_HYS) |
| |
| #define GPIO_PAD_CTRL \ |
| (PAD_CTL_HYS | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm) |
| |
| #define SPI_PAD_CTRL \ |
| (PAD_CTL_HYS | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \ |
| PAD_CTL_SRE_FAST) |
| |
| #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_47K_UP | PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \ |
| PAD_CTL_SRE_FAST | PAD_CTL_HYS) |
| |
| static const struct mx6dq_iomux_ddr_regs dhcom6dq_ddr_ioregs = { |
| .dram_sdclk_0 = 0x00020030, |
| .dram_sdclk_1 = 0x00020030, |
| .dram_cas = 0x00020030, |
| .dram_ras = 0x00020030, |
| .dram_reset = 0x00020030, |
| .dram_sdcke0 = 0x00003000, |
| .dram_sdcke1 = 0x00003000, |
| .dram_sdba2 = 0x00000000, |
| .dram_sdodt0 = 0x00003030, |
| .dram_sdodt1 = 0x00003030, |
| .dram_sdqs0 = 0x00000030, |
| .dram_sdqs1 = 0x00000030, |
| .dram_sdqs2 = 0x00000030, |
| .dram_sdqs3 = 0x00000030, |
| .dram_sdqs4 = 0x00000030, |
| .dram_sdqs5 = 0x00000030, |
| .dram_sdqs6 = 0x00000030, |
| .dram_sdqs7 = 0x00000030, |
| .dram_dqm0 = 0x00020030, |
| .dram_dqm1 = 0x00020030, |
| .dram_dqm2 = 0x00020030, |
| .dram_dqm3 = 0x00020030, |
| .dram_dqm4 = 0x00020030, |
| .dram_dqm5 = 0x00020030, |
| .dram_dqm6 = 0x00020030, |
| .dram_dqm7 = 0x00020030, |
| }; |
| |
| static const struct mx6dq_iomux_grp_regs dhcom6dq_grp_ioregs = { |
| .grp_ddr_type = 0x000C0000, |
| .grp_ddrmode_ctl = 0x00020000, |
| .grp_ddrpke = 0x00000000, |
| .grp_addds = 0x00000030, |
| .grp_ctlds = 0x00000030, |
| .grp_ddrmode = 0x00020000, |
| .grp_b0ds = 0x00000030, |
| .grp_b1ds = 0x00000030, |
| .grp_b2ds = 0x00000030, |
| .grp_b3ds = 0x00000030, |
| .grp_b4ds = 0x00000030, |
| .grp_b5ds = 0x00000030, |
| .grp_b6ds = 0x00000030, |
| .grp_b7ds = 0x00000030, |
| }; |
| |
| static const struct mx6sdl_iomux_ddr_regs dhcom6sdl_ddr_ioregs = { |
| .dram_sdclk_0 = 0x00020030, |
| .dram_sdclk_1 = 0x00020030, |
| .dram_cas = 0x00020030, |
| .dram_ras = 0x00020030, |
| .dram_reset = 0x00020030, |
| .dram_sdcke0 = 0x00003000, |
| .dram_sdcke1 = 0x00003000, |
| .dram_sdba2 = 0x00000000, |
| .dram_sdodt0 = 0x00003030, |
| .dram_sdodt1 = 0x00003030, |
| .dram_sdqs0 = 0x00000030, |
| .dram_sdqs1 = 0x00000030, |
| .dram_sdqs2 = 0x00000030, |
| .dram_sdqs3 = 0x00000030, |
| .dram_sdqs4 = 0x00000030, |
| .dram_sdqs5 = 0x00000030, |
| .dram_sdqs6 = 0x00000030, |
| .dram_sdqs7 = 0x00000030, |
| .dram_dqm0 = 0x00020030, |
| .dram_dqm1 = 0x00020030, |
| .dram_dqm2 = 0x00020030, |
| .dram_dqm3 = 0x00020030, |
| .dram_dqm4 = 0x00020030, |
| .dram_dqm5 = 0x00020030, |
| .dram_dqm6 = 0x00020030, |
| .dram_dqm7 = 0x00020030, |
| }; |
| |
| static const struct mx6sdl_iomux_grp_regs dhcom6sdl_grp_ioregs = { |
| .grp_ddr_type = 0x000C0000, |
| .grp_ddrmode_ctl = 0x00020000, |
| .grp_ddrpke = 0x00000000, |
| .grp_addds = 0x00000030, |
| .grp_ctlds = 0x00000030, |
| .grp_ddrmode = 0x00020000, |
| .grp_b0ds = 0x00000030, |
| .grp_b1ds = 0x00000030, |
| .grp_b2ds = 0x00000030, |
| .grp_b3ds = 0x00000030, |
| .grp_b4ds = 0x00000030, |
| .grp_b5ds = 0x00000030, |
| .grp_b6ds = 0x00000030, |
| .grp_b7ds = 0x00000030, |
| }; |
| |
| static const struct mx6_mmdc_calibration dhcom_mmdc_calib_4x4g_1066 = { |
| .p0_mpwldectrl0 = 0x00150019, |
| .p0_mpwldectrl1 = 0x001C000B, |
| .p1_mpwldectrl0 = 0x00020018, |
| .p1_mpwldectrl1 = 0x0002000C, |
| .p0_mpdgctrl0 = 0x43140320, |
| .p0_mpdgctrl1 = 0x03080304, |
| .p1_mpdgctrl0 = 0x43180320, |
| .p1_mpdgctrl1 = 0x03100254, |
| .p0_mprddlctl = 0x4830383C, |
| .p1_mprddlctl = 0x3836323E, |
| .p0_mpwrdlctl = 0x3E444642, |
| .p1_mpwrdlctl = 0x42344442, |
| }; |
| |
| static const struct mx6_mmdc_calibration dhcom_mmdc_calib_2x4g_800 = { |
| .p0_mpwldectrl0 = 0x0040003C, |
| .p0_mpwldectrl1 = 0x0032003E, |
| .p0_mpdgctrl0 = 0x42350231, |
| .p0_mpdgctrl1 = 0x021A0218, |
| .p0_mprddlctl = 0x4B4B4E49, |
| .p0_mpwrdlctl = 0x3F3F3035, |
| }; |
| |
| static const struct mx6_mmdc_calibration dhcom_mmdc_calib_4x2g_1066 = { |
| .p0_mpwldectrl0 = 0x001a001a, |
| .p0_mpwldectrl1 = 0x00260015, |
| .p0_mpdgctrl0 = 0x030c0320, |
| .p0_mpdgctrl1 = 0x03100304, |
| .p0_mprddlctl = 0x432e3538, |
| .p0_mpwrdlctl = 0x363f423d, |
| .p1_mpwldectrl0 = 0x0006001e, |
| .p1_mpwldectrl1 = 0x00050015, |
| .p1_mpdgctrl0 = 0x031c0324, |
| .p1_mpdgctrl1 = 0x030c0258, |
| .p1_mprddlctl = 0x3834313f, |
| .p1_mpwrdlctl = 0x47374a42, |
| }; |
| |
| static const struct mx6_mmdc_calibration dhcom_mmdc_calib_4x2g_800 = { |
| .p0_mpwldectrl0 = 0x003A003A, |
| .p0_mpwldectrl1 = 0x0030002F, |
| .p1_mpwldectrl0 = 0x002F0038, |
| .p1_mpwldectrl1 = 0x00270039, |
| .p0_mpdgctrl0 = 0x420F020F, |
| .p0_mpdgctrl1 = 0x01760175, |
| .p1_mpdgctrl0 = 0x41640171, |
| .p1_mpdgctrl1 = 0x015E0160, |
| .p0_mprddlctl = 0x45464B4A, |
| .p1_mprddlctl = 0x49484A46, |
| .p0_mpwrdlctl = 0x40402E32, |
| .p1_mpwrdlctl = 0x3A3A3231, |
| }; |
| |
| static const struct mx6_mmdc_calibration dhcom_mmdc_calib_2x2g_800 = { |
| .p0_mpwldectrl0 = 0x0040003C, |
| .p0_mpwldectrl1 = 0x0032003E, |
| .p0_mpdgctrl0 = 0x42350231, |
| .p0_mpdgctrl1 = 0x021A0218, |
| .p0_mprddlctl = 0x4B4B4E49, |
| .p0_mpwrdlctl = 0x3F3F3035, |
| }; |
| |
| /* |
| * 2 Gbit DDR3 memory |
| * - NANYA #NT5CC128M16IP-DII |
| * - NANYA #NT5CB128M16FP-DII |
| */ |
| static const struct mx6_ddr3_cfg dhcom_mem_ddr_2g = { |
| .mem_speed = 1600, |
| .density = 2, |
| .width = 16, |
| .banks = 8, |
| .rowaddr = 14, |
| .coladdr = 10, |
| .pagesz = 2, |
| .trcd = 1375, |
| .trcmin = 5863, |
| .trasmin = 3750, |
| }; |
| |
| /* |
| * 4 Gbit DDR3 memory |
| * - Intelligent Memory #IM4G16D3EABG-125I |
| */ |
| static const struct mx6_ddr3_cfg dhcom_mem_ddr_4g = { |
| .mem_speed = 1600, |
| .density = 4, |
| .width = 16, |
| .banks = 8, |
| .rowaddr = 15, |
| .coladdr = 10, |
| .pagesz = 2, |
| .trcd = 1375, |
| .trcmin = 4875, |
| .trasmin = 3500, |
| }; |
| |
| /* DDR3 64bit */ |
| static const struct mx6_ddr_sysinfo dhcom_ddr_64bit = { |
| /* width of data bus:0=16,1=32,2=64 */ |
| .dsize = 2, |
| .cs_density = 32, |
| .ncs = 1, /* single chip select */ |
| .cs1_mirror = 1, |
| .rtt_wr = 1, /* DDR3_RTT_60_OHM, RTT_Wr = RZQ/4 */ |
| .rtt_nom = 1, /* DDR3_RTT_60_OHM, RTT_Nom = RZQ/4 */ |
| .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) */ |
| .refsel = 1, /* Refresh cycles at 32KHz */ |
| .refr = 3, /* 4 refresh commands per refresh cycle */ |
| }; |
| |
| /* DDR3 32bit */ |
| static const struct mx6_ddr_sysinfo dhcom_ddr_32bit = { |
| /* width of data bus:0=16,1=32,2=64 */ |
| .dsize = 1, |
| .cs_density = 32, |
| .ncs = 1, /* single chip select */ |
| .cs1_mirror = 1, |
| .rtt_wr = 1, /* DDR3_RTT_60_OHM, RTT_Wr = RZQ/4 */ |
| .rtt_nom = 1, /* DDR3_RTT_60_OHM, RTT_Nom = RZQ/4 */ |
| .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) */ |
| .refsel = 1, /* Refresh cycles at 32KHz */ |
| .refr = 3, /* 4 refresh commands per refresh cycle */ |
| }; |
| |
| static void ccgr_init(void) |
| { |
| struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; |
| |
| writel(0x00C03F3F, &ccm->CCGR0); |
| writel(0x0030FC03, &ccm->CCGR1); |
| writel(0x0FFFC000, &ccm->CCGR2); |
| writel(0x3FF00000, &ccm->CCGR3); |
| writel(0x00FFF300, &ccm->CCGR4); |
| writel(0x0F0000C3, &ccm->CCGR5); |
| writel(0x000003FF, &ccm->CCGR6); |
| } |
| |
| /* Board ID */ |
| static iomux_v3_cfg_t const hwcode_pads[] = { |
| IOMUX_PADS(PAD_EIM_A19__GPIO2_IO19 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_EIM_A23__GPIO6_IO06 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_EIM_A22__GPIO2_IO16 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| }; |
| |
| static void setup_iomux_boardid(void) |
| { |
| /* HW code pins: Setup alternate function and configure pads */ |
| SETUP_IOMUX_PADS(hwcode_pads); |
| } |
| |
| /* DDR Code */ |
| static iomux_v3_cfg_t const ddrcode_pads[] = { |
| IOMUX_PADS(PAD_EIM_A16__GPIO2_IO22 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_EIM_A17__GPIO2_IO21 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| }; |
| |
| static void setup_iomux_ddrcode(void) |
| { |
| /* ddr code pins */ |
| SETUP_IOMUX_PADS(ddrcode_pads); |
| } |
| |
| enum dhcom_ddr3_code { |
| DH_DDR3_SIZE_256MIB = 0x00, |
| DH_DDR3_SIZE_512MIB = 0x01, |
| DH_DDR3_SIZE_1GIB = 0x02, |
| DH_DDR3_SIZE_2GIB = 0x03 |
| }; |
| |
| #define DDR3_CODE_BIT_0 IMX_GPIO_NR(2, 22) |
| #define DDR3_CODE_BIT_1 IMX_GPIO_NR(2, 21) |
| |
| enum dhcom_ddr3_code dhcom_get_ddr3_code(void) |
| { |
| enum dhcom_ddr3_code ddr3_code; |
| |
| gpio_request(DDR3_CODE_BIT_0, "DDR3_CODE_BIT_0"); |
| gpio_request(DDR3_CODE_BIT_1, "DDR3_CODE_BIT_1"); |
| |
| gpio_direction_input(DDR3_CODE_BIT_0); |
| gpio_direction_input(DDR3_CODE_BIT_1); |
| |
| /* 256MB = 0b00; 512MB = 0b01; 1GB = 0b10; 2GB = 0b11 */ |
| ddr3_code = (!!gpio_get_value(DDR3_CODE_BIT_1) << 1) |
| | (!!gpio_get_value(DDR3_CODE_BIT_0)); |
| |
| return ddr3_code; |
| } |
| |
| /* GPIO */ |
| static iomux_v3_cfg_t const gpio_pads[] = { |
| IOMUX_PADS(PAD_GPIO_2__GPIO1_IO02 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_GPIO_4__GPIO1_IO04 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_GPIO_5__GPIO1_IO05 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_CSI0_DAT17__GPIO6_IO03 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_GPIO_19__GPIO4_IO05 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_DI0_PIN4__GPIO4_IO20 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_EIM_D27__GPIO3_IO27 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_KEY_ROW0__GPIO4_IO07 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_KEY_COL1__GPIO4_IO08 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_NANDF_CS1__GPIO6_IO14 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_NANDF_CS2__GPIO6_IO15 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_KEY_ROW1__GPIO4_IO09 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD3_DAT5__GPIO7_IO00 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD3_DAT4__GPIO7_IO01 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_CSI0_VSYNC__GPIO5_IO21 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_GPIO_18__GPIO7_IO13 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD1_CMD__GPIO1_IO18 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD1_DAT0__GPIO1_IO16 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD1_DAT1__GPIO1_IO17 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD1_DAT2__GPIO1_IO19 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD1_CLK__GPIO1_IO20 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_CSI0_PIXCLK__GPIO5_IO18 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| IOMUX_PADS(PAD_CSI0_MCLK__GPIO5_IO19 | MUX_PAD_CTRL(GPIO_PAD_CTRL)), |
| }; |
| |
| static void setup_iomux_gpio(void) |
| { |
| SETUP_IOMUX_PADS(gpio_pads); |
| } |
| |
| /* Ethernet */ |
| 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_ENET_TX_EN__ENET_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL)), |
| IOMUX_PADS(PAD_ENET_TXD0__ENET_TX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL)), |
| IOMUX_PADS(PAD_ENET_TXD1__ENET_TX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL)), |
| IOMUX_PADS(PAD_GPIO_16__ENET_REF_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL)), |
| IOMUX_PADS(PAD_ENET_RX_ER__ENET_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL)), |
| IOMUX_PADS(PAD_ENET_RXD0__ENET_RX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL)), |
| IOMUX_PADS(PAD_ENET_RXD1__ENET_RX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL)), |
| IOMUX_PADS(PAD_ENET_CRS_DV__ENET_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL)), |
| /* SMSC PHY Reset */ |
| IOMUX_PADS(PAD_EIM_WAIT__GPIO5_IO00 | MUX_PAD_CTRL(NO_PAD_CTRL)), |
| /* ENET_VIO_GPIO */ |
| IOMUX_PADS(PAD_GPIO_7__GPIO1_IO07 | MUX_PAD_CTRL(NO_PAD_CTRL)), |
| /* ENET_Interrupt - (not used) */ |
| IOMUX_PADS(PAD_RGMII_RD0__GPIO6_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL)), |
| }; |
| |
| static void setup_iomux_enet(void) |
| { |
| SETUP_IOMUX_PADS(enet_pads); |
| } |
| |
| /* SD interface */ |
| static iomux_v3_cfg_t const usdhc2_pads[] = { |
| 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_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_NANDF_CS3__GPIO6_IO16 | MUX_PAD_CTRL(NO_PAD_CTRL)), /* CD */ |
| }; |
| |
| /* onboard microSD */ |
| static iomux_v3_cfg_t const usdhc3_pads[] = { |
| IOMUX_PADS(PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD3_RST__GPIO7_IO08 | MUX_PAD_CTRL(NO_PAD_CTRL)), /* CD */ |
| }; |
| |
| /* eMMC */ |
| static iomux_v3_cfg_t const usdhc4_pads[] = { |
| IOMUX_PADS(PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)), |
| }; |
| |
| /* SD */ |
| static void setup_iomux_sd(void) |
| { |
| SETUP_IOMUX_PADS(usdhc2_pads); |
| SETUP_IOMUX_PADS(usdhc3_pads); |
| SETUP_IOMUX_PADS(usdhc4_pads); |
| } |
| |
| /* SPI */ |
| static iomux_v3_cfg_t const ecspi1_pads[] = { |
| /* SS0 - SS of boot flash */ |
| IOMUX_PADS(PAD_EIM_EB2__GPIO2_IO30 | |
| MUX_PAD_CTRL(SPI_PAD_CTRL | PAD_CTL_PUS_100K_UP)), |
| /* SS2 - SS of DHCOM SPI1 */ |
| IOMUX_PADS(PAD_KEY_ROW2__GPIO4_IO11 | |
| MUX_PAD_CTRL(SPI_PAD_CTRL | PAD_CTL_PUS_100K_UP)), |
| |
| IOMUX_PADS(PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL)), |
| IOMUX_PADS(PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL)), |
| IOMUX_PADS(PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL)), |
| }; |
| |
| static void setup_iomux_spi(void) |
| { |
| SETUP_IOMUX_PADS(ecspi1_pads); |
| } |
| |
| int board_spi_cs_gpio(unsigned bus, unsigned cs) |
| { |
| if (bus == 0 && cs == 0) |
| return IMX_GPIO_NR(2, 30); |
| else |
| return -1; |
| } |
| |
| /* UART */ |
| static iomux_v3_cfg_t const uart1_pads[] = { |
| IOMUX_PADS(PAD_SD3_DAT7__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)), |
| IOMUX_PADS(PAD_SD3_DAT6__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)), |
| }; |
| |
| static void setup_iomux_uart(void) |
| { |
| SETUP_IOMUX_PADS(uart1_pads); |
| } |
| |
| /* USB */ |
| static iomux_v3_cfg_t const usb_pads[] = { |
| IOMUX_PADS(PAD_GPIO_1__USB_OTG_ID | MUX_PAD_CTRL(NO_PAD_CTRL)), |
| IOMUX_PADS(PAD_EIM_D31__GPIO3_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL)), |
| }; |
| |
| static void setup_iomux_usb(void) |
| { |
| SETUP_IOMUX_PADS(usb_pads); |
| } |
| |
| /* Perform DDR DRAM calibration */ |
| static int spl_dram_perform_cal(struct mx6_ddr_sysinfo const *sysinfo) |
| { |
| int ret = 0; |
| |
| #ifdef CONFIG_MX6_DDRCAL |
| udelay(100); |
| ret = mmdc_do_write_level_calibration(sysinfo); |
| if (ret) { |
| printf("DDR3: Write level calibration error [%d]\n", ret); |
| return ret; |
| } |
| |
| ret = mmdc_do_dqs_calibration(sysinfo); |
| if (ret) { |
| printf("DDR3: DQS calibration error [%d]\n", ret); |
| return ret; |
| } |
| #endif /* CONFIG_MX6_DDRCAL */ |
| |
| return ret; |
| } |
| |
| |
| /* DRAM */ |
| static void dhcom_spl_dram_init(void) |
| { |
| enum dhcom_ddr3_code ddr3_code = dhcom_get_ddr3_code(); |
| |
| if (is_mx6dq()) { |
| mx6dq_dram_iocfg(64, &dhcom6dq_ddr_ioregs, |
| &dhcom6dq_grp_ioregs); |
| switch (ddr3_code) { |
| default: |
| printf("imx6qd: unsupported ddr3 code %d\n", ddr3_code); |
| printf(" choosing 1024 MB\n"); |
| /* fall through */ |
| case DH_DDR3_SIZE_1GIB: |
| mx6_dram_cfg(&dhcom_ddr_64bit, |
| &dhcom_mmdc_calib_4x2g_1066, |
| &dhcom_mem_ddr_2g); |
| break; |
| case DH_DDR3_SIZE_2GIB: |
| mx6_dram_cfg(&dhcom_ddr_64bit, |
| &dhcom_mmdc_calib_4x4g_1066, |
| &dhcom_mem_ddr_4g); |
| break; |
| } |
| |
| /* Perform DDR DRAM calibration */ |
| spl_dram_perform_cal(&dhcom_ddr_64bit); |
| |
| } else if (is_cpu_type(MXC_CPU_MX6DL)) { |
| mx6sdl_dram_iocfg(64, &dhcom6sdl_ddr_ioregs, |
| &dhcom6sdl_grp_ioregs); |
| switch (ddr3_code) { |
| default: |
| printf("imx6dl: unsupported ddr3 code %d\n", ddr3_code); |
| printf(" choosing 1024 MB\n"); |
| /* fall through */ |
| case DH_DDR3_SIZE_1GIB: |
| mx6_dram_cfg(&dhcom_ddr_64bit, |
| &dhcom_mmdc_calib_4x2g_800, |
| &dhcom_mem_ddr_2g); |
| break; |
| } |
| |
| /* Perform DDR DRAM calibration */ |
| spl_dram_perform_cal(&dhcom_ddr_64bit); |
| |
| } else if (is_cpu_type(MXC_CPU_MX6SOLO)) { |
| mx6sdl_dram_iocfg(32, &dhcom6sdl_ddr_ioregs, |
| &dhcom6sdl_grp_ioregs); |
| switch (ddr3_code) { |
| default: |
| printf("imx6s: unsupported ddr3 code %d\n", ddr3_code); |
| printf(" choosing 512 MB\n"); |
| /* fall through */ |
| case DH_DDR3_SIZE_512MIB: |
| mx6_dram_cfg(&dhcom_ddr_32bit, |
| &dhcom_mmdc_calib_2x2g_800, |
| &dhcom_mem_ddr_2g); |
| break; |
| case DH_DDR3_SIZE_1GIB: |
| mx6_dram_cfg(&dhcom_ddr_32bit, |
| &dhcom_mmdc_calib_2x4g_800, |
| &dhcom_mem_ddr_4g); |
| break; |
| } |
| |
| /* Perform DDR DRAM calibration */ |
| spl_dram_perform_cal(&dhcom_ddr_32bit); |
| } |
| } |
| |
| void board_init_f(ulong dummy) |
| { |
| /* setup AIPS and disable watchdog */ |
| arch_cpu_init(); |
| |
| ccgr_init(); |
| gpr_init(); |
| |
| /* setup GP timer */ |
| timer_init(); |
| |
| setup_iomux_boardid(); |
| setup_iomux_ddrcode(); |
| setup_iomux_gpio(); |
| setup_iomux_enet(); |
| setup_iomux_sd(); |
| setup_iomux_spi(); |
| setup_iomux_uart(); |
| setup_iomux_usb(); |
| |
| /* UART clocks enabled and gd valid - init serial console */ |
| preloader_console_init(); |
| |
| /* DDR3 initialization */ |
| dhcom_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); |
| } |
