From c9e40e65e1dcf19f518fa3811bb6de2bf407360f Mon Sep 17 00:00:00 2001 From: Marcin Niestroj Date: Wed, 7 Dec 2016 16:46:33 +0100 Subject: board/liteboard: Add support for liteBoard liteBoard is a development board which uses liteSOM as its base. Hardware specification: * liteSOM (i.MX6UL, DRAM, eMMC) * Ethernet PHY (id 0) * USB host (usb_otg1) * MicroSD slot (uSDHC1) Signed-off-by: Marcin Niestroj --- board/grinn/liteboard/Kconfig | 12 ++ board/grinn/liteboard/MAINTAINERS | 6 + board/grinn/liteboard/Makefile | 6 + board/grinn/liteboard/README | 31 ++++ board/grinn/liteboard/board.c | 287 ++++++++++++++++++++++++++++++++++++++ 5 files changed, 342 insertions(+) create mode 100644 board/grinn/liteboard/Kconfig create mode 100644 board/grinn/liteboard/MAINTAINERS create mode 100644 board/grinn/liteboard/Makefile create mode 100644 board/grinn/liteboard/README create mode 100644 board/grinn/liteboard/board.c (limited to 'board/grinn') diff --git a/board/grinn/liteboard/Kconfig b/board/grinn/liteboard/Kconfig new file mode 100644 index 0000000000..e035872c99 --- /dev/null +++ b/board/grinn/liteboard/Kconfig @@ -0,0 +1,12 @@ +if TARGET_LITEBOARD + +config SYS_BOARD + default "liteboard" + +config SYS_VENDOR + default "grinn" + +config SYS_CONFIG_NAME + default "liteboard" + +endif diff --git a/board/grinn/liteboard/MAINTAINERS b/board/grinn/liteboard/MAINTAINERS new file mode 100644 index 0000000000..b4474f1b3b --- /dev/null +++ b/board/grinn/liteboard/MAINTAINERS @@ -0,0 +1,6 @@ +LITEBOARD +M: Marcin Niestroj +S: Maintained +F: board/grinn/liteboard/ +F: include/configs/liteboard.h +F: configs/liteboard_defconfig diff --git a/board/grinn/liteboard/Makefile b/board/grinn/liteboard/Makefile new file mode 100644 index 0000000000..e2492d6598 --- /dev/null +++ b/board/grinn/liteboard/Makefile @@ -0,0 +1,6 @@ +# (C) Copyright 2016 Grinn +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y := board.o diff --git a/board/grinn/liteboard/README b/board/grinn/liteboard/README new file mode 100644 index 0000000000..bee0394429 --- /dev/null +++ b/board/grinn/liteboard/README @@ -0,0 +1,31 @@ +How to use U-Boot on Grinn's liteBoard +-------------------------------------- + +- Build U-Boot for liteBoard: + +$ make mrproper +$ make liteboard_defconfig +$ make + +This will generate the SPL image called SPL and the u-boot.img. + +- Flash the SPL image into the micro SD card: + +sudo dd if=SPL of=/dev/mmcblk0 bs=1k seek=1; sync + +- Flash the u-boot.img image into the micro SD card: + +sudo dd if=u-boot.img of=/dev/mmcblk0 bs=1k seek=69; sync + +- Jumper settings: + +S1: 0 1 0 1 1 1 + +where 0 means bottom position and 1 means top position (from the +switch label numbers reference). + +- Insert the micro SD card in the board. + +- Connect USB cable between liteBoard and the PC for the power and console. + +- U-Boot messages should come up. diff --git a/board/grinn/liteboard/board.c b/board/grinn/liteboard/board.c new file mode 100644 index 0000000000..13dd0a63db --- /dev/null +++ b/board/grinn/liteboard/board.c @@ -0,0 +1,287 @@ +/* + * Copyright (C) 2015-2016 Freescale Semiconductor, Inc. + * Copyright (C) 2016 Grinn + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#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 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 ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \ + PAD_CTL_SPEED_HIGH | \ + PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST) + +#define MDIO_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \ + PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST | PAD_CTL_ODE) + +#define ENET_CLK_PAD_CTRL (PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST) + +static iomux_v3_cfg_t const uart1_pads[] = { + MX6_PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL), + MX6_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL), +}; + +static iomux_v3_cfg_t const sd_pads[] = { + MX6_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_DATA0__USDHC1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_DATA1__USDHC1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_DATA2__USDHC1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_DATA3__USDHC1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + + /* CD */ + MX6_PAD_UART1_RTS_B__GPIO1_IO19 | MUX_PAD_CTRL(NO_PAD_CTRL), +}; + +#ifdef CONFIG_FEC_MXC +static iomux_v3_cfg_t const fec1_pads[] = { + MX6_PAD_GPIO1_IO06__ENET1_MDIO | MUX_PAD_CTRL(MDIO_PAD_CTRL), + MX6_PAD_GPIO1_IO07__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET1_TX_DATA0__ENET1_TDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET1_TX_DATA1__ENET1_TDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET1_TX_EN__ENET1_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 | MUX_PAD_CTRL(ENET_CLK_PAD_CTRL), + MX6_PAD_ENET1_RX_DATA0__ENET1_RDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET1_RX_DATA1__ENET1_RDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET1_RX_ER__ENET1_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET1_RX_EN__ENET1_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL), +}; + +static void setup_iomux_fec(void) +{ + imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads)); +} +#endif + +static void setup_iomux_uart(void) +{ + imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads)); +} + +#ifdef CONFIG_FSL_ESDHC +static struct fsl_esdhc_cfg sd_cfg = {USDHC1_BASE_ADDR, 0, 4}; + +#define SD_CD_GPIO IMX_GPIO_NR(1, 19) + +static int mmc_get_env_devno(void) +{ + u32 soc_sbmr = readl(SRC_BASE_ADDR + 0x4); + int dev_no; + u32 bootsel; + + bootsel = (soc_sbmr & 0x000000FF) >> 6; + + /* If not boot from sd/mmc, use default value */ + if (bootsel != 1) + return CONFIG_SYS_MMC_ENV_DEV; + + /* BOOT_CFG2[3] and BOOT_CFG2[4] */ + dev_no = (soc_sbmr & 0x00001800) >> 11; + + return dev_no; +} + +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(SD_CD_GPIO); + break; + case USDHC2_BASE_ADDR: + ret = 1; + break; + } + + return ret; +} + +int board_mmc_init(bd_t *bis) +{ + int ret; + + /* SD */ + imx_iomux_v3_setup_multiple_pads(sd_pads, ARRAY_SIZE(sd_pads)); + gpio_direction_input(SD_CD_GPIO); + sd_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); + + ret = fsl_esdhc_initialize(bis, &sd_cfg); + if (ret) { + printf("Warning: failed to initialize mmc dev 0 (SD)\n"); + return ret; + } + + return litesom_mmc_init(bis); +} + +static int check_mmc_autodetect(void) +{ + char *autodetect_str = getenv("mmcautodetect"); + + if ((autodetect_str != NULL) && + (strcmp(autodetect_str, "yes") == 0)) { + return 1; + } + + return 0; +} + +void board_late_mmc_init(void) +{ + char cmd[32]; + char mmcblk[32]; + u32 dev_no = mmc_get_env_devno(); + + if (!check_mmc_autodetect()) + return; + + setenv_ulong("mmcdev", dev_no); + + /* Set mmcblk env */ + sprintf(mmcblk, "/dev/mmcblk%dp2 rootwait rw", + dev_no); + setenv("mmcroot", mmcblk); + + sprintf(cmd, "mmc dev %d", dev_no); + run_command(cmd, 0); +} +#endif + +#ifdef CONFIG_FEC_MXC +int board_eth_init(bd_t *bis) +{ + setup_iomux_fec(); + + return fecmxc_initialize(bis); +} + +static int setup_fec(void) +{ + struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR; + int ret; + + /* Use 50M anatop loopback REF_CLK1 for ENET1, clear gpr1[13], + set gpr1[17]*/ + clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK, + IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK); + + ret = enable_fec_anatop_clock(0, ENET_50MHZ); + if (ret) + return ret; + + enable_enet_clk(1); + + return 0; +} +#endif + +#ifdef CONFIG_USB_EHCI_MX6 +int board_usb_phy_mode(int port) +{ + return USB_INIT_HOST; +} +#endif + +int board_early_init_f(void) +{ + setup_iomux_uart(); + + return 0; +} + +int board_init(void) +{ + /* Address of boot parameters */ + gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; + +#ifdef CONFIG_FEC_MXC + setup_fec(); +#endif + + return 0; +} + +#ifdef CONFIG_CMD_BMODE +static const struct boot_mode board_boot_modes[] = { + /* 4 bit bus width */ + {"sd", MAKE_CFGVAL(0x40, 0x20, 0x00, 0x00)}, + {"emmc", MAKE_CFGVAL(0x60, 0x48, 0x00, 0x00)}, + {NULL, 0}, +}; +#endif + +int board_late_init(void) +{ +#ifdef CONFIG_CMD_BMODE + add_board_boot_modes(board_boot_modes); +#endif + +#ifdef CONFIG_ENV_IS_IN_MMC + board_late_mmc_init(); +#endif + + return 0; +} + +int checkboard(void) +{ + puts("Board: Grinn liteBoard\n"); + + return 0; +} + +#ifdef CONFIG_SPL_BUILD +void board_boot_order(u32 *spl_boot_list) +{ + struct src *psrc = (struct src *)SRC_BASE_ADDR; + unsigned gpr10_boot = readl(&psrc->gpr10) & (1 << 28); + unsigned reg = gpr10_boot ? readl(&psrc->gpr9) : readl(&psrc->sbmr1); + unsigned port = (reg >> 11) & 0x1; + + if (port == 0) { + spl_boot_list[0] = BOOT_DEVICE_MMC1; + spl_boot_list[1] = BOOT_DEVICE_MMC2; + } else { + spl_boot_list[0] = BOOT_DEVICE_MMC2; + spl_boot_list[1] = BOOT_DEVICE_MMC1; + } +} + +void board_init_f(ulong dummy) +{ + litesom_init_f(); +} +#endif -- cgit v1.2.3