diff options
author | Jagan Teki <jagan@amarulasolutions.com> | 2016-12-13 19:56:52 +0300 |
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committer | Stefano Babic <sbabic@denx.de> | 2016-12-16 19:16:10 +0300 |
commit | a5b9f8c8f07f2a901354a77c6131cb0429881bf8 (patch) | |
tree | 80cbf0089bb80e3c6193a6b671727b5ce0fc96f6 /board | |
parent | b8ad70f70655d4a53c4014e768a25194c8a4b219 (diff) | |
download | u-boot-a5b9f8c8f07f2a901354a77c6131cb0429881bf8.tar.xz |
arm: imx6ul: Add Engicam GEAM6UL Starter Kit initial support
Boot Log:
--------
U-Boot SPL 2016.11-rc2-00144-g922adaa-dirty (Oct 28 2016 - 18:55:30)
Trying to boot from MMC1
U-Boot 2016.11-rc2-00144-g922adaa-dirty (Oct 28 2016 - 18:55:30 +0530)
CPU: Freescale i.MX6UL rev1.1 528 MHz (running at 396 MHz)
CPU: Industrial temperature grade (-40C to 105C) at 43C
Reset cause: POR
Model: Engicam GEAM6UL
DRAM: 128 MiB
MMC: FSL_SDHC: 0
*** Warning - bad CRC, using default environment
In: serial
Out: serial
Err: serial
Net: CPU Net Initialization Failed
No ethernet found.
Hit any key to stop autoboot: 0
geam6ul>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Matteo Lisi <matteo.lisi@engicam.com>
Cc: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Diffstat (limited to 'board')
-rw-r--r-- | board/engicam/geam6ul/Kconfig | 12 | ||||
-rw-r--r-- | board/engicam/geam6ul/MAINTAINERS | 6 | ||||
-rw-r--r-- | board/engicam/geam6ul/Makefile | 6 | ||||
-rw-r--r-- | board/engicam/geam6ul/README | 28 | ||||
-rw-r--r-- | board/engicam/geam6ul/geam6ul.c | 246 |
5 files changed, 298 insertions, 0 deletions
diff --git a/board/engicam/geam6ul/Kconfig b/board/engicam/geam6ul/Kconfig new file mode 100644 index 0000000000..8753d15ebc --- /dev/null +++ b/board/engicam/geam6ul/Kconfig @@ -0,0 +1,12 @@ +if TARGET_MX6UL_GEAM + +config SYS_BOARD + default "geam6ul" + +config SYS_VENDOR + default "engicam" + +config SYS_CONFIG_NAME + default "imx6ul_geam" + +endif diff --git a/board/engicam/geam6ul/MAINTAINERS b/board/engicam/geam6ul/MAINTAINERS new file mode 100644 index 0000000000..66914509a1 --- /dev/null +++ b/board/engicam/geam6ul/MAINTAINERS @@ -0,0 +1,6 @@ +GEAM6UL BOARD +M: Jagan Teki <jagan@amarulasolutions.com> +S: Maintained +F: board/engicam/geam6ul +F: include/configs/imx6ul_geam.h +F: configs/imx6ul_geam_mmc_defconfig diff --git a/board/engicam/geam6ul/Makefile b/board/engicam/geam6ul/Makefile new file mode 100644 index 0000000000..0e367e2172 --- /dev/null +++ b/board/engicam/geam6ul/Makefile @@ -0,0 +1,6 @@ +# Copyright (C) 2016 Amarula Solutions B.V. +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y := geam6ul.o diff --git a/board/engicam/geam6ul/README b/board/engicam/geam6ul/README new file mode 100644 index 0000000000..0df6ae4a8c --- /dev/null +++ b/board/engicam/geam6ul/README @@ -0,0 +1,28 @@ +How to use U-Boot on Engicam GEAM6UL Starter Kit: +------------------------------------------------- + +- Configure U-Boot for Engicam GEAM6UL: + +$ make mrproper +$ make imx6ul_geam_mmc_defconfig +$ make + +This will generate the SPL image called SPL and the u-boot-dtb.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-dtb.img image into the micro SD card: + +sudo dd if=u-boot-dtb.img of=/dev/mmcblk0 bs=1k seek=69; sync + +- Jumper settings: + +MMC Boot: JM3 Closed + +- Connect the Serial cable between the Starter Kit and the PC for the console. +(J28 is the Linux Serial console connector) + +- Insert the micro SD card in the board, power it up and U-Boot messages should +come up. diff --git a/board/engicam/geam6ul/geam6ul.c b/board/engicam/geam6ul/geam6ul.c new file mode 100644 index 0000000000..85308456ef --- /dev/null +++ b/board/engicam/geam6ul/geam6ul.c @@ -0,0 +1,246 @@ +/* + * Copyright (C) 2016 Amarula Solutions B.V. + * Copyright (C) 2016 Engicam S.r.l. + * Author: Jagan Teki <jagan@amarulasolutions.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> + +#include <asm/io.h> +#include <asm/gpio.h> +#include <linux/sizes.h> + +#include <asm/arch/clock.h> +#include <asm/arch/iomux.h> +#include <asm/arch/mx6-pins.h> +#include <asm/arch/sys_proto.h> +#include <asm/imx-common/iomux-v3.h> + +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) + +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), +}; + +int board_early_init_f(void) +{ + imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads)); + + 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; +} + +#ifdef CONFIG_SPL_BUILD +#include <libfdt.h> +#include <spl.h> + +#include <asm/arch/crm_regs.h> +#include <asm/arch/mx6-ddr.h> + +/* MMC board initialization is needed till adding DM support in SPL */ +#if defined(CONFIG_FSL_ESDHC) && !defined(CONFIG_DM_MMC) +#include <mmc.h> +#include <fsl_esdhc.h> + +#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) + +static iomux_v3_cfg_t const usdhc1_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), + + /* VSELECT */ + MX6_PAD_GPIO1_IO05__USDHC1_VSELECT | MUX_PAD_CTRL(USDHC_PAD_CTRL), + /* CD */ + MX6_PAD_UART1_RTS_B__GPIO1_IO19 | MUX_PAD_CTRL(NO_PAD_CTRL), + /* RST_B */ + MX6_PAD_GPIO1_IO09__GPIO1_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL), +}; + +#define USDHC1_CD_GPIO IMX_GPIO_NR(1, 1) + +struct fsl_esdhc_cfg usdhc_cfg[1] = { + {USDHC1_BASE_ADDR, 0, 4}, +}; + +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; + } + + return ret; +} + +int board_mmc_init(bd_t *bis) +{ + int i, ret; + + /* + * According to the board_mmc_init() the following map is done: + * (U-boot device node) (Physical Port) + * mmc0 USDHC1 + */ + for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) { + switch (i) { + case 0: + imx_iomux_v3_setup_multiple_pads( + usdhc1_pads, ARRAY_SIZE(usdhc1_pads)); + gpio_direction_input(USDHC1_CD_GPIO); + usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_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 /* CONFIG_FSL_ESDHC */ + +static struct mx6ul_iomux_grp_regs mx6_grp_ioregs = { + .grp_addds = 0x00000030, + .grp_ddrmode_ctl = 0x00020000, + .grp_b0ds = 0x00000030, + .grp_ctlds = 0x00000030, + .grp_b1ds = 0x00000030, + .grp_ddrpke = 0x00000000, + .grp_ddrmode = 0x00020000, + .grp_ddr_type = 0x000c0000, +}; + +static struct mx6ul_iomux_ddr_regs mx6_ddr_ioregs = { + .dram_dqm0 = 0x00000030, + .dram_dqm1 = 0x00000030, + .dram_ras = 0x00000030, + .dram_cas = 0x00000030, + .dram_odt0 = 0x00000030, + .dram_odt1 = 0x00000030, + .dram_sdba2 = 0x00000000, + .dram_sdclk_0 = 0x00000008, + .dram_sdqs0 = 0x00000038, + .dram_sdqs1 = 0x00000030, + .dram_reset = 0x00000030, +}; + +static struct mx6_mmdc_calibration mx6_mmcd_calib = { + .p0_mpwldectrl0 = 0x00070007, + .p0_mpdgctrl0 = 0x41490145, + .p0_mprddlctl = 0x40404546, + .p0_mpwrdlctl = 0x4040524D, +}; + +struct mx6_ddr_sysinfo ddr_sysinfo = { + .dsize = 0, + .cs_density = 20, + .ncs = 1, + .cs1_mirror = 0, + .rtt_wr = 2, + .rtt_nom = 1, /* 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) */ + .ddr_type = DDR_TYPE_DDR3, +}; + +static struct mx6_ddr3_cfg mem_ddr = { + .mem_speed = 800, + .density = 4, + .width = 16, + .banks = 8, + .rowaddr = 13, + .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) +{ + mx6ul_dram_iocfg(mem_ddr.width, &mx6_ddr_ioregs, &mx6_grp_ioregs); + mx6_dram_cfg(&ddr_sysinfo, &mx6_mmcd_calib, &mem_ddr); +} + +void board_init_f(ulong dummy) +{ + /* setup AIPS and disable watchdog */ + arch_cpu_init(); + + ccgr_init(); + + /* iomux and setup of i2c */ + 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 /* CONFIG_SPL_BUILD */ |