diff options
Diffstat (limited to 'roms/u-boot/board/wandboard/spl.c')
| -rw-r--r-- | roms/u-boot/board/wandboard/spl.c | 517 |
1 files changed, 517 insertions, 0 deletions
diff --git a/roms/u-boot/board/wandboard/spl.c b/roms/u-boot/board/wandboard/spl.c new file mode 100644 index 000000000..0983d1005 --- /dev/null +++ b/roms/u-boot/board/wandboard/spl.c @@ -0,0 +1,517 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2014 Wandboard + * Author: Tungyi Lin <tungyilin1127@gmail.com> + * Richard Hu <hakahu@gmail.com> + */ + +#include <common.h> +#include <init.h> +#include <asm/arch/clock.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/iomux.h> +#include <asm/arch/mx6-pins.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 <asm/arch/mx6-ddr.h> +/* + * Driving strength: + * 0x30 == 40 Ohm + * 0x28 == 48 Ohm + */ + +#define IMX6DQ_DRIVE_STRENGTH 0x30 +#define IMX6SDL_DRIVE_STRENGTH 0x28 +#define IMX6QP_DRIVE_STRENGTH 0x28 + +/* configure MX6Q/DUAL mmdc DDR io registers */ +static struct mx6dq_iomux_ddr_regs mx6dq_ddr_ioregs = { + .dram_sdclk_0 = IMX6DQ_DRIVE_STRENGTH, + .dram_sdclk_1 = IMX6DQ_DRIVE_STRENGTH, + .dram_cas = IMX6DQ_DRIVE_STRENGTH, + .dram_ras = IMX6DQ_DRIVE_STRENGTH, + .dram_reset = IMX6DQ_DRIVE_STRENGTH, + .dram_sdcke0 = IMX6DQ_DRIVE_STRENGTH, + .dram_sdcke1 = IMX6DQ_DRIVE_STRENGTH, + .dram_sdba2 = 0x00000000, + .dram_sdodt0 = IMX6DQ_DRIVE_STRENGTH, + .dram_sdodt1 = IMX6DQ_DRIVE_STRENGTH, + .dram_sdqs0 = IMX6DQ_DRIVE_STRENGTH, + .dram_sdqs1 = IMX6DQ_DRIVE_STRENGTH, + .dram_sdqs2 = IMX6DQ_DRIVE_STRENGTH, + .dram_sdqs3 = IMX6DQ_DRIVE_STRENGTH, + .dram_sdqs4 = IMX6DQ_DRIVE_STRENGTH, + .dram_sdqs5 = IMX6DQ_DRIVE_STRENGTH, + .dram_sdqs6 = IMX6DQ_DRIVE_STRENGTH, + .dram_sdqs7 = IMX6DQ_DRIVE_STRENGTH, + .dram_dqm0 = IMX6DQ_DRIVE_STRENGTH, + .dram_dqm1 = IMX6DQ_DRIVE_STRENGTH, + .dram_dqm2 = IMX6DQ_DRIVE_STRENGTH, + .dram_dqm3 = IMX6DQ_DRIVE_STRENGTH, + .dram_dqm4 = IMX6DQ_DRIVE_STRENGTH, + .dram_dqm5 = IMX6DQ_DRIVE_STRENGTH, + .dram_dqm6 = IMX6DQ_DRIVE_STRENGTH, + .dram_dqm7 = IMX6DQ_DRIVE_STRENGTH, +}; + +/* configure MX6QP mmdc DDR io registers */ +static struct mx6dq_iomux_ddr_regs mx6qp_ddr_ioregs = { + .dram_sdclk_0 = IMX6QP_DRIVE_STRENGTH, + .dram_sdclk_1 = IMX6QP_DRIVE_STRENGTH, + .dram_cas = IMX6QP_DRIVE_STRENGTH, + .dram_ras = IMX6QP_DRIVE_STRENGTH, + .dram_reset = IMX6QP_DRIVE_STRENGTH, + .dram_sdcke0 = IMX6QP_DRIVE_STRENGTH, + .dram_sdcke1 = IMX6QP_DRIVE_STRENGTH, + .dram_sdba2 = 0x00000000, + .dram_sdodt0 = IMX6QP_DRIVE_STRENGTH, + .dram_sdodt1 = IMX6QP_DRIVE_STRENGTH, + .dram_sdqs0 = IMX6QP_DRIVE_STRENGTH, + .dram_sdqs1 = IMX6QP_DRIVE_STRENGTH, + .dram_sdqs2 = IMX6QP_DRIVE_STRENGTH, + .dram_sdqs3 = IMX6QP_DRIVE_STRENGTH, + .dram_sdqs4 = IMX6QP_DRIVE_STRENGTH, + .dram_sdqs5 = IMX6QP_DRIVE_STRENGTH, + .dram_sdqs6 = IMX6QP_DRIVE_STRENGTH, + .dram_sdqs7 = IMX6QP_DRIVE_STRENGTH, + .dram_dqm0 = IMX6QP_DRIVE_STRENGTH, + .dram_dqm1 = IMX6QP_DRIVE_STRENGTH, + .dram_dqm2 = IMX6QP_DRIVE_STRENGTH, + .dram_dqm3 = IMX6QP_DRIVE_STRENGTH, + .dram_dqm4 = IMX6QP_DRIVE_STRENGTH, + .dram_dqm5 = IMX6QP_DRIVE_STRENGTH, + .dram_dqm6 = IMX6QP_DRIVE_STRENGTH, + .dram_dqm7 = IMX6QP_DRIVE_STRENGTH, +}; + +/* configure MX6Q/DUAL mmdc GRP io registers */ +static struct mx6dq_iomux_grp_regs mx6dq_grp_ioregs = { + .grp_ddr_type = 0x000c0000, + .grp_ddrmode_ctl = 0x00020000, + .grp_ddrpke = 0x00000000, + .grp_addds = IMX6DQ_DRIVE_STRENGTH, + .grp_ctlds = IMX6DQ_DRIVE_STRENGTH, + .grp_ddrmode = 0x00020000, + .grp_b0ds = IMX6DQ_DRIVE_STRENGTH, + .grp_b1ds = IMX6DQ_DRIVE_STRENGTH, + .grp_b2ds = IMX6DQ_DRIVE_STRENGTH, + .grp_b3ds = IMX6DQ_DRIVE_STRENGTH, + .grp_b4ds = IMX6DQ_DRIVE_STRENGTH, + .grp_b5ds = IMX6DQ_DRIVE_STRENGTH, + .grp_b6ds = IMX6DQ_DRIVE_STRENGTH, + .grp_b7ds = IMX6DQ_DRIVE_STRENGTH, +}; + +/* configure MX6QP mmdc GRP io registers */ +static struct mx6dq_iomux_grp_regs mx6qp_grp_ioregs = { + .grp_ddr_type = 0x000c0000, + .grp_ddrmode_ctl = 0x00020000, + .grp_ddrpke = 0x00000000, + .grp_addds = IMX6QP_DRIVE_STRENGTH, + .grp_ctlds = IMX6QP_DRIVE_STRENGTH, + .grp_ddrmode = 0x00020000, + .grp_b0ds = IMX6QP_DRIVE_STRENGTH, + .grp_b1ds = IMX6QP_DRIVE_STRENGTH, + .grp_b2ds = IMX6QP_DRIVE_STRENGTH, + .grp_b3ds = IMX6QP_DRIVE_STRENGTH, + .grp_b4ds = IMX6QP_DRIVE_STRENGTH, + .grp_b5ds = IMX6QP_DRIVE_STRENGTH, + .grp_b6ds = IMX6QP_DRIVE_STRENGTH, + .grp_b7ds = IMX6QP_DRIVE_STRENGTH, +}; + +/* 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, +}; + +/* H5T04G63AFR-PB */ +static struct mx6_ddr3_cfg h5t04g63afr = { + .mem_speed = 1600, + .density = 4, + .width = 16, + .banks = 8, + .rowaddr = 15, + .coladdr = 10, + .pagesz = 2, + .trcd = 1375, + .trcmin = 4875, + .trasmin = 3500, +}; + +/* H5TQ2G63DFR-H9 */ +static struct mx6_ddr3_cfg h5tq2g63dfr = { + .mem_speed = 1333, + .density = 2, + .width = 16, + .banks = 8, + .rowaddr = 14, + .coladdr = 10, + .pagesz = 2, + .trcd = 1350, + .trcmin = 4950, + .trasmin = 3600, +}; + +static struct mx6_mmdc_calibration mx6q_2g_mmdc_calib = { + .p0_mpwldectrl0 = 0x001f001f, + .p0_mpwldectrl1 = 0x001f001f, + .p1_mpwldectrl0 = 0x001f001f, + .p1_mpwldectrl1 = 0x001f001f, + .p0_mpdgctrl0 = 0x4301030d, + .p0_mpdgctrl1 = 0x03020277, + .p1_mpdgctrl0 = 0x4300030a, + .p1_mpdgctrl1 = 0x02780248, + .p0_mprddlctl = 0x4536393b, + .p1_mprddlctl = 0x36353441, + .p0_mpwrdlctl = 0x41414743, + .p1_mpwrdlctl = 0x462f453f, +}; + +/* DDR 64bit 2GB */ +static struct mx6_ddr_sysinfo mem_q = { + .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 = 0, + .ralat = 5, + .walat = 0, + .mif3_mode = 3, + .rst_to_cke = 0x23, + .sde_to_rst = 0x10, + .refsel = 1, /* Refresh cycles at 32KHz */ + .refr = 3, /* 4 refresh commands per refresh cycle */ +}; + +static struct mx6_mmdc_calibration mx6dl_1g_mmdc_calib = { + .p0_mpwldectrl0 = 0x001f001f, + .p0_mpwldectrl1 = 0x001f001f, + .p1_mpwldectrl0 = 0x001f001f, + .p1_mpwldectrl1 = 0x001f001f, + .p0_mpdgctrl0 = 0x420e020e, + .p0_mpdgctrl1 = 0x02000200, + .p1_mpdgctrl0 = 0x42020202, + .p1_mpdgctrl1 = 0x01720172, + .p0_mprddlctl = 0x494c4f4c, + .p1_mprddlctl = 0x4a4c4c49, + .p0_mpwrdlctl = 0x3f3f3133, + .p1_mpwrdlctl = 0x39373f2e, +}; + +static struct mx6_mmdc_calibration mx6s_512m_mmdc_calib = { + .p0_mpwldectrl0 = 0x0040003c, + .p0_mpwldectrl1 = 0x0032003e, + .p0_mpdgctrl0 = 0x42350231, + .p0_mpdgctrl1 = 0x021a0218, + .p0_mprddlctl = 0x4b4b4e49, + .p0_mpwrdlctl = 0x3f3f3035, +}; + +/* DDR 64bit 1GB */ +static struct mx6_ddr_sysinfo mem_dl = { + .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 = 0, + .ralat = 5, + .walat = 0, + .mif3_mode = 3, + .rst_to_cke = 0x23, + .sde_to_rst = 0x10, + .refsel = 1, /* Refresh cycles at 32KHz */ + .refr = 3, /* 4 refresh commands per refresh cycle */ +}; + +/* DDR 32bit 512MB */ +static struct mx6_ddr_sysinfo mem_s = { + .dsize = 1, + .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 = 0, + .ralat = 5, + .walat = 0, + .mif3_mode = 3, + .rst_to_cke = 0x23, + .sde_to_rst = 0x10, + .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(0x3FF03000, &ccm->CCGR3); + writel(0x00FFF300, &ccm->CCGR4); + writel(0x0F0000C3, &ccm->CCGR5); + writel(0x000003FF, &ccm->CCGR6); +} + +static void spl_dram_init_imx6qp_lpddr3(void) +{ + /* MMDC0_MDSCR set the Configuration request bit during MMDC set up */ + writel(0x00008000, MMDC_P0_BASE_ADDR + 0x01c); + /* Calibrations - ZQ */ + writel(0xa1390003, MMDC_P0_BASE_ADDR + 0x800); + /* write leveling */ + writel(0x00060004, MMDC_P0_BASE_ADDR + 0x80c); + writel(0x000B0004, MMDC_P0_BASE_ADDR + 0x810); + writel(0x00000004, MMDC_P1_BASE_ADDR + 0x80c); + writel(0x00000000, MMDC_P1_BASE_ADDR + 0x810); + /* + * DQS gating, read delay, write delay calibration values + * based on calibration compare of 0x00ffff00 + */ + writel(0x03040314, MMDC_P0_BASE_ADDR + 0x83c); + writel(0x03080300, MMDC_P0_BASE_ADDR + 0x840); + writel(0x03000310, MMDC_P1_BASE_ADDR + 0x83c); + writel(0x0268023C, MMDC_P1_BASE_ADDR + 0x840); + writel(0x4034363A, MMDC_P0_BASE_ADDR + 0x848); + writel(0x36302C3C, MMDC_P1_BASE_ADDR + 0x848); + writel(0x3E3E4046, MMDC_P0_BASE_ADDR + 0x850); + writel(0x483A4844, MMDC_P1_BASE_ADDR + 0x850); + writel(0x33333333, MMDC_P0_BASE_ADDR + 0x81c); + writel(0x33333333, MMDC_P0_BASE_ADDR + 0x820); + writel(0x33333333, MMDC_P0_BASE_ADDR + 0x824); + writel(0x33333333, MMDC_P0_BASE_ADDR + 0x828); + writel(0x33333333, MMDC_P1_BASE_ADDR + 0x81c); + writel(0x33333333, MMDC_P1_BASE_ADDR + 0x820); + writel(0x33333333, MMDC_P1_BASE_ADDR + 0x824); + writel(0x33333333, MMDC_P1_BASE_ADDR + 0x828); + writel(0x24912489, MMDC_P0_BASE_ADDR + 0x8c0); + writel(0x24914452, MMDC_P1_BASE_ADDR + 0x8c0); + writel(0x00000800, MMDC_P0_BASE_ADDR + 0x8b8); + writel(0x00000800, MMDC_P1_BASE_ADDR + 0x8b8); + /* MMDC init: in DDR3, 64-bit mode, only MMDC0 is initiated */ + writel(0x00020036, MMDC_P0_BASE_ADDR + 0x004); + writel(0x09444040, MMDC_P0_BASE_ADDR + 0x008); + writel(0x898E79A4, MMDC_P0_BASE_ADDR + 0x00c); + writel(0xDB538F64, MMDC_P0_BASE_ADDR + 0x010); + writel(0x01FF00DD, MMDC_P0_BASE_ADDR + 0x014); + writel(0x00011740, MMDC_P0_BASE_ADDR + 0x018); + writel(0x00008000, MMDC_P0_BASE_ADDR + 0x01c); + writel(0x000026D2, MMDC_P0_BASE_ADDR + 0x02c); + writel(0x008E1023, MMDC_P0_BASE_ADDR + 0x030); + writel(0x00000047, MMDC_P0_BASE_ADDR + 0x040); + writel(0x14420000, MMDC_P0_BASE_ADDR + 0x400); + writel(0x841A0000, MMDC_P0_BASE_ADDR + 0x000); + writel(0x00400c58, MMDC_P0_BASE_ADDR + 0x890); + /* add NOC DDR configuration */ + writel(0x00000000, NOC_DDR_BASE_ADDR + 0x008); + writel(0x2871C39B, NOC_DDR_BASE_ADDR + 0x00c); + writel(0x000005B4, NOC_DDR_BASE_ADDR + 0x038); + writel(0x00000040, NOC_DDR_BASE_ADDR + 0x014); + writel(0x00000020, NOC_DDR_BASE_ADDR + 0x028); + writel(0x00000020, NOC_DDR_BASE_ADDR + 0x02c); + writel(0x02088032, MMDC_P0_BASE_ADDR + 0x01c); + writel(0x00008033, MMDC_P0_BASE_ADDR + 0x01c); + writel(0x00048031, MMDC_P0_BASE_ADDR + 0x01c); + writel(0x19308030, MMDC_P0_BASE_ADDR + 0x01c); + writel(0x04008040, MMDC_P0_BASE_ADDR + 0x01c); + writel(0x00007800, MMDC_P0_BASE_ADDR + 0x020); + writel(0x00022227, MMDC_P0_BASE_ADDR + 0x818); + writel(0x00022227, MMDC_P1_BASE_ADDR + 0x818); + writel(0x00025576, MMDC_P0_BASE_ADDR + 0x004); + writel(0x00011006, MMDC_P0_BASE_ADDR + 0x404); + writel(0x00000000, MMDC_P0_BASE_ADDR + 0x01c); +} + +static void spl_dram_init(void) +{ + if (is_mx6dqp()) { + mx6dq_dram_iocfg(64, &mx6qp_ddr_ioregs, &mx6qp_grp_ioregs); + spl_dram_init_imx6qp_lpddr3(); + } else if (is_cpu_type(MXC_CPU_MX6SOLO)) { + mx6sdl_dram_iocfg(32, &mx6sdl_ddr_ioregs, &mx6sdl_grp_ioregs); + mx6_dram_cfg(&mem_s, &mx6s_512m_mmdc_calib, &h5tq2g63dfr); + } else if (is_cpu_type(MXC_CPU_MX6DL)) { + mx6sdl_dram_iocfg(64, &mx6sdl_ddr_ioregs, &mx6sdl_grp_ioregs); + mx6_dram_cfg(&mem_dl, &mx6dl_1g_mmdc_calib, &h5tq2g63dfr); + } else if (is_cpu_type(MXC_CPU_MX6Q)) { + mx6dq_dram_iocfg(64, &mx6dq_ddr_ioregs, &mx6dq_grp_ioregs); + mx6_dram_cfg(&mem_q, &mx6q_2g_mmdc_calib, &h5t04g63afr); + } + + udelay(100); +} + +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(); +} + +#define USDHC1_CD_GPIO IMX_GPIO_NR(1, 2) +#define USDHC3_CD_GPIO IMX_GPIO_NR(3, 9) + +#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 struct fsl_esdhc_cfg usdhc_cfg[2] = { + {USDHC3_BASE_ADDR}, + {USDHC1_BASE_ADDR}, +}; + +static iomux_v3_cfg_t const usdhc1_pads[] = { + IOMUX_PADS(PAD_SD1_CLK__SD1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + IOMUX_PADS(PAD_SD1_CMD__SD1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + IOMUX_PADS(PAD_SD1_DAT0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + IOMUX_PADS(PAD_SD1_DAT1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + IOMUX_PADS(PAD_SD1_DAT2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + IOMUX_PADS(PAD_SD1_DAT3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + /* Carrier MicroSD Card Detect */ + IOMUX_PADS(PAD_GPIO_2__GPIO1_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL)), +}; + +static iomux_v3_cfg_t const usdhc3_pads[] = { + 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_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)), + /* SOM MicroSD Card Detect */ + IOMUX_PADS(PAD_EIM_DA9__GPIO3_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL)), +}; + +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 USDHC1_BASE_ADDR: + ret = !gpio_get_value(USDHC1_CD_GPIO); + break; + case USDHC3_BASE_ADDR: + ret = !gpio_get_value(USDHC3_CD_GPIO); + break; + } + + return ret; +} + +int board_mmc_init(struct bd_info *bis) +{ + int ret; + u32 index = 0; + + /* + * Following map is done: + * (U-Boot device node) (Physical Port) + * mmc0 SOM MicroSD + * mmc1 Carrier board MicroSD + */ + for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) { + switch (index) { + case 0: + SETUP_IOMUX_PADS(usdhc3_pads); + usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); + usdhc_cfg[0].max_bus_width = 4; + gpio_direction_input(USDHC3_CD_GPIO); + break; + case 1: + SETUP_IOMUX_PADS(usdhc1_pads); + usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); + usdhc_cfg[1].max_bus_width = 4; + gpio_direction_input(USDHC1_CD_GPIO); + break; + default: + printf("Warning: you configured more USDHC controllers" + "(%d) then supported by the board (%d)\n", + index + 1, CONFIG_SYS_FSL_USDHC_NUM); + return -EINVAL; + } + + ret = fsl_esdhc_initialize(bis, &usdhc_cfg[index]); + if (ret) + return ret; + } + + return 0; +} |