liteboard is a development board which uses liteSOM as its base. liteSOM can't exist on its own, but is used as part of other boards - it only contains processor and memory. Hardware specification: * liteSOM: - i.MX6UL - 256M or 512M DDR3 RAM - eMMC (uSDHC2) * Ethernet PHY * USB host (usb_otg1) * MicroSD slot (uSDHC1) Signed-off-by: Marcin Niestroj <m.niestroj@xxxxxxxxxxxxxxxx> --- Hi, It has been a while before posting first patch [1]. Finally I have found more time to finish that work. [1] https://www.spinics.net/lists/u-boot-v2/msg33201.html Changes v1 -> v2: * rebased on current master * use for loop over boot_sources[] (previously named envs[]) (suggested by Andrey) * do not configure RX UART in lowlevel.c (suggested by Andrey) * use putchar() instead of putc_ll(), so we depend on CONFIG_PBL_CONSOLE instead of CONFIG_DEBUG_LL (suggested by Andrey) * only setup UART in case of CONFIG_PBL_CONSOLE=y (suggested by Andrey) * move relocate_to_current_adr(), setup_c(), barrier() inside setup_uart() (suggested by Andrey) * do not disable watchdog powerdown counters (I couldn't find good reason to disable them) * put partition definitions in dts file inside 'partitions' node arch/arm/boards/Makefile | 1 + arch/arm/boards/grinn-liteboard/Makefile | 2 + arch/arm/boards/grinn-liteboard/board.c | 110 ++++++++++++++++++ .../flash-header-liteboard-256mb.imxcfg | 6 + .../flash-header-liteboard-512mb.imxcfg | 6 + .../grinn-liteboard/flash-header-liteboard.h | 68 +++++++++++ arch/arm/boards/grinn-liteboard/lowlevel.c | 82 +++++++++++++ arch/arm/configs/imx_v7_defconfig | 1 + arch/arm/dts/Makefile | 1 + arch/arm/dts/imx6ul-liteboard.dts | 96 +++++++++++++++ arch/arm/mach-imx/Kconfig | 4 + images/Makefile.imx | 10 ++ 12 files changed, 387 insertions(+) create mode 100644 arch/arm/boards/grinn-liteboard/Makefile create mode 100644 arch/arm/boards/grinn-liteboard/board.c create mode 100644 arch/arm/boards/grinn-liteboard/flash-header-liteboard-256mb.imxcfg create mode 100644 arch/arm/boards/grinn-liteboard/flash-header-liteboard-512mb.imxcfg create mode 100644 arch/arm/boards/grinn-liteboard/flash-header-liteboard.h create mode 100644 arch/arm/boards/grinn-liteboard/lowlevel.c create mode 100644 arch/arm/dts/imx6ul-liteboard.dts diff --git a/arch/arm/boards/Makefile b/arch/arm/boards/Makefile index c737cf341..601691543 100644 --- a/arch/arm/boards/Makefile +++ b/arch/arm/boards/Makefile @@ -52,6 +52,7 @@ obj-$(CONFIG_MACH_GE863) += telit-evk-pro3/ obj-$(CONFIG_MACH_GK802) += gk802/ obj-$(CONFIG_MACH_GLOBALSCALE_GURUPLUG) += globalscale-guruplug/ obj-$(CONFIG_MACH_GLOBALSCALE_MIRABOX) += globalscale-mirabox/ +obj-$(CONFIG_MACH_GRINN_LITEBOARD) += grinn-liteboard/ obj-$(CONFIG_MACH_GUF_CUPID) += guf-cupid/ obj-$(CONFIG_MACH_GUF_SANTARO) += guf-santaro/ obj-$(CONFIG_MACH_GUF_VINCELL) += guf-vincell/ diff --git a/arch/arm/boards/grinn-liteboard/Makefile b/arch/arm/boards/grinn-liteboard/Makefile new file mode 100644 index 000000000..01c7a259e --- /dev/null +++ b/arch/arm/boards/grinn-liteboard/Makefile @@ -0,0 +1,2 @@ +obj-y += board.o +lwl-y += lowlevel.o diff --git a/arch/arm/boards/grinn-liteboard/board.c b/arch/arm/boards/grinn-liteboard/board.c new file mode 100644 index 000000000..695b24384 --- /dev/null +++ b/arch/arm/boards/grinn-liteboard/board.c @@ -0,0 +1,110 @@ +/* + * Copyright (C) 2018 Grinn + * + * Author: Marcin Niestroj <m.niestroj@xxxxxxxxxxxxxxxx> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; version 2. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#define pr_fmt(fmt) "liteboard: " fmt + +#include <bootsource.h> +#include <common.h> +#include <envfs.h> +#include <init.h> +#include <mach/bbu.h> +#include <mach/imx6.h> +#include <malloc.h> +#include <mfd/imx6q-iomuxc-gpr.h> +#include <of.h> + +static void bbu_register_handler_sd(bool is_boot_source) +{ + imx6_bbu_internal_mmc_register_handler("sd", "/dev/mmc0.barebox", + is_boot_source ? BBU_HANDLER_FLAG_DEFAULT : 0); +} + +static void bbu_register_handler_emmc(bool is_boot_source) +{ + int emmc_boot_flag = 0, emmc_flag = 0; + const char *bootpart; + struct device_d *dev; + int ret; + + if (!is_boot_source) + goto bbu_register; + + dev = get_device_by_name("mmc1"); + if (!dev) { + pr_warn("Failed to get eMMC device\n"); + goto bbu_register; + } + + ret = device_detect(dev); + if (ret) { + pr_warn("Failed to probe eMMC\n"); + goto bbu_register; + } + + bootpart = dev_get_param(dev, "boot"); + if (!bootpart) { + pr_warn("Failed to get eMMC boot configuration\n"); + goto bbu_register; + } + + if (!strncmp(bootpart, "boot", 4)) + emmc_boot_flag |= BBU_HANDLER_FLAG_DEFAULT; + else + emmc_flag |= BBU_HANDLER_FLAG_DEFAULT; + +bbu_register: + imx6_bbu_internal_mmc_register_handler("emmc", "/dev/mmc1.barebox", + emmc_flag); + imx6_bbu_internal_mmcboot_register_handler("emmc-boot", "mmc1", + emmc_boot_flag); +} + +static const struct { + const char *name; + const char *env; + void (*bbu_register_handler)(bool); +} boot_sources[] = { + {"SD", "/chosen/environment-sd", bbu_register_handler_sd}, + {"eMMC", "/chosen/environment-emmc", bbu_register_handler_emmc}, +}; + +static int liteboard_devices_init(void) +{ + int boot_source_idx = 0; + int ret; + int i; + + if (!of_machine_is_compatible("grinn,imx6ul-liteboard")) + return 0; + + barebox_set_hostname("liteboard"); + + if (bootsource_get() == BOOTSOURCE_MMC) + boot_source_idx = bootsource_get_instance(); + + ret = of_device_enable_path(boot_sources[boot_source_idx].env); + if (ret < 0) + pr_warn("Failed to enable environment partition '%s' (%d)\n", + boot_sources[boot_source_idx].env, ret); + + pr_notice("Using environment in %s\n", + boot_sources[boot_source_idx].name); + + for (i = 0; i < ARRAY_SIZE(boot_sources); i++) + boot_sources[i].bbu_register_handler(boot_source_idx == i); + + return 0; +} +device_initcall(liteboard_devices_init); diff --git a/arch/arm/boards/grinn-liteboard/flash-header-liteboard-256mb.imxcfg b/arch/arm/boards/grinn-liteboard/flash-header-liteboard-256mb.imxcfg new file mode 100644 index 000000000..1b980c784 --- /dev/null +++ b/arch/arm/boards/grinn-liteboard/flash-header-liteboard-256mb.imxcfg @@ -0,0 +1,6 @@ + +#define SETUP_MDASP_MDCTL \ + wm 32 0x021B0040 0x00000047; \ + wm 32 0x021B0000 0x83180000 + +#include "flash-header-liteboard.h" diff --git a/arch/arm/boards/grinn-liteboard/flash-header-liteboard-512mb.imxcfg b/arch/arm/boards/grinn-liteboard/flash-header-liteboard-512mb.imxcfg new file mode 100644 index 000000000..c93a2cc0f --- /dev/null +++ b/arch/arm/boards/grinn-liteboard/flash-header-liteboard-512mb.imxcfg @@ -0,0 +1,6 @@ + +#define SETUP_MDASP_MDCTL \ + wm 32 0x021B0040 0x0000004F; \ + wm 32 0x021B0000 0x84180000 + +#include "flash-header-liteboard.h" diff --git a/arch/arm/boards/grinn-liteboard/flash-header-liteboard.h b/arch/arm/boards/grinn-liteboard/flash-header-liteboard.h new file mode 100644 index 000000000..60a39f524 --- /dev/null +++ b/arch/arm/boards/grinn-liteboard/flash-header-liteboard.h @@ -0,0 +1,68 @@ + +loadaddr 0x80000000 +soc imx6 +dcdofs 0x400 + +wm 32 0x020c4068 0xffffffff +wm 32 0x020c406c 0xffffffff +wm 32 0x020c4070 0xffffffff +wm 32 0x020c4074 0xffffffff +wm 32 0x020c4078 0xffffffff +wm 32 0x020c407c 0xffffffff +wm 32 0x020c4080 0xffffffff + +wm 32 0x020E04B4 0x000C0000 +wm 32 0x020E04AC 0x00000000 +wm 32 0x020E027C 0x00000030 +wm 32 0x020E0250 0x00000030 +wm 32 0x020E024C 0x00000030 +wm 32 0x020E0490 0x00000030 +wm 32 0x020E0288 0x00000030 +wm 32 0x020E0270 0x00000000 +wm 32 0x020E0260 0x00000030 +wm 32 0x020E0264 0x00000030 +wm 32 0x020E04A0 0x00000030 +wm 32 0x020E0494 0x00020000 +wm 32 0x020E0280 0x00000030 +wm 32 0x020E0284 0x00000030 +wm 32 0x020E04B0 0x00020000 +wm 32 0x020E0498 0x00000030 +wm 32 0x020E04A4 0x00000030 +wm 32 0x020E0244 0x00000030 +wm 32 0x020E0248 0x00000030 +wm 32 0x021B001C 0x00008000 +wm 32 0x021B0800 0xA1390003 +wm 32 0x021B080C 0x00000000 +wm 32 0x021B083C 0x41480148 +wm 32 0x021B0848 0x40403E42 +wm 32 0x021B0850 0x40405852 +wm 32 0x021B081C 0x33333333 +wm 32 0x021B0820 0x33333333 +wm 32 0x021B082C 0xf3333333 +wm 32 0x021B0830 0xf3333333 +wm 32 0x021B08C0 0x00922012 +wm 32 0x021B0858 0x00000F00 +wm 32 0x021B08b8 0x00000800 +wm 32 0x021B0004 0x0002002D +wm 32 0x021B0008 0x1B333030 +wm 32 0x021B000C 0x676B52F3 +wm 32 0x021B0010 0xB66D0B63 +wm 32 0x021B0014 0x01FF00DB +wm 32 0x021B0018 0x00211740 +wm 32 0x021B001C 0x00008000 +wm 32 0x021B002C 0x000026D2 +wm 32 0x021B0030 0x006B1023 + +SETUP_MDASP_MDCTL + +wm 32 0x021b0890 0x00400A38 +wm 32 0x021B001C 0x02008032 +wm 32 0x021B001C 0x00008033 +wm 32 0x021B001C 0x00048031 +wm 32 0x021B001C 0x15208030 +wm 32 0x021B001C 0x04008040 +wm 32 0x021B0020 0x00007800 +wm 32 0x021B0818 0x00000227 +wm 32 0x021B0004 0x0002556D +wm 32 0x021B0404 0x00011006 +wm 32 0x021B001C 0x00000000 diff --git a/arch/arm/boards/grinn-liteboard/lowlevel.c b/arch/arm/boards/grinn-liteboard/lowlevel.c new file mode 100644 index 000000000..331ccc228 --- /dev/null +++ b/arch/arm/boards/grinn-liteboard/lowlevel.c @@ -0,0 +1,82 @@ +/* + * Copyright (C) 2018 Grinn + * + * Author: Marcin Niestroj <m.niestroj@xxxxxxxxxxxxxxxx> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; version 2. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include <debug_ll.h> +#include <common.h> +#include <linux/sizes.h> +#include <io.h> +#include <image-metadata.h> +#include <asm/barebox-arm-head.h> +#include <asm/barebox-arm.h> +#include <asm/sections.h> +#include <asm/cache.h> +#include <asm/mmu.h> +#include <mach/esdctl.h> +#include <mach/imx6.h> + +static inline void setup_uart(void) +{ + void __iomem *iomuxbase = IOMEM(MX6_IOMUXC_BASE_ADDR); + void __iomem *uart = IOMEM(MX6_UART1_BASE_ADDR); + + relocate_to_current_adr(); + setup_c(); + barrier(); + + imx6_ungate_all_peripherals(); + + writel(0x0, iomuxbase + 0x84); + writel(0x1b0b1, iomuxbase + 0x0310); + + imx6_uart_setup(uart); + + pbl_set_putc(imx_uart_putc, uart); + + putchar('>'); +} + +BAREBOX_IMD_TAG_STRING(liteboard_memsize_SZ_256M, IMD_TYPE_PARAMETER, + "memsize=256", 0); +BAREBOX_IMD_TAG_STRING(liteboard_memsize_SZ_512M, IMD_TYPE_PARAMETER, + "memsize=512", 0); + +extern char __dtb_imx6ul_liteboard_start[]; + +static void __noreturn start_imx6_liteboard(void) +{ + imx6ul_cpu_lowlevel_init(); + + arm_setup_stack(0x00910000 - 8); + + arm_early_mmu_cache_invalidate(); + + if (IS_ENABLED(CONFIG_PBL_CONSOLE)) + setup_uart(); + + imx6ul_barebox_entry(__dtb_imx6ul_liteboard_start + + get_runtime_offset()); +} + +#define LITEBOARD_ENTRY(name, memory_size) \ + ENTRY_FUNCTION(name, r0, r1, r2) \ + { \ + IMD_USED(liteboard_memsize_##memory_size); \ + \ + start_imx6_liteboard(); \ + } + + +LITEBOARD_ENTRY(start_imx6ul_liteboard_256mb, SZ_256M); +LITEBOARD_ENTRY(start_imx6ul_liteboard_512mb, SZ_512M); diff --git a/arch/arm/configs/imx_v7_defconfig b/arch/arm/configs/imx_v7_defconfig index 0fc3c9c50..bf84dfa9f 100644 --- a/arch/arm/configs/imx_v7_defconfig +++ b/arch/arm/configs/imx_v7_defconfig @@ -41,6 +41,7 @@ CONFIG_MACH_ZII_VF610_DEV=y CONFIG_MACH_PHYTEC_PHYCORE_IMX7=y CONFIG_MACH_FREESCALE_MX7_SABRESD=y CONFIG_MACH_NXP_IMX6ULL_EVK=y +CONFIG_MACH_GRINN_LITEBOARD=y CONFIG_IMX_IIM=y CONFIG_IMX_IIM_FUSE_BLOW=y CONFIG_THUMB2_BAREBOX=y diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile index 1caeca35b..b3b562917 100644 --- a/arch/arm/dts/Makefile +++ b/arch/arm/dts/Makefile @@ -27,6 +27,7 @@ pbl-dtb-$(CONFIG_MACH_FREESCALE_MX7_SABRESD) += imx7d-sdb.dtb.o pbl-dtb-$(CONFIG_MACH_GK802) += imx6q-gk802.dtb.o pbl-dtb-$(CONFIG_MACH_GLOBALSCALE_GURUPLUG) += kirkwood-guruplug-server-plus-bb.dtb.o pbl-dtb-$(CONFIG_MACH_GLOBALSCALE_MIRABOX) += armada-370-mirabox-bb.dtb.o +pbl-dtb-$(CONFIG_MACH_GRINN_LITEBOARD) += imx6ul-liteboard.dtb.o pbl-dtb-$(CONFIG_MACH_GUF_SANTARO) += imx6q-guf-santaro.dtb.o pbl-dtb-$(CONFIG_MACH_GUF_VINCELL) += imx53-guf-vincell.dtb.o imx53-guf-vincell-lt.dtb.o pbl-dtb-$(CONFIG_MACH_GW_VENTANA) += imx6q-gw54xx.dtb.o diff --git a/arch/arm/dts/imx6ul-liteboard.dts b/arch/arm/dts/imx6ul-liteboard.dts new file mode 100644 index 000000000..03a4bfc78 --- /dev/null +++ b/arch/arm/dts/imx6ul-liteboard.dts @@ -0,0 +1,96 @@ +/* + * Copyright 2018 Grinn + * + * Author: Marcin Niestroj <m.niestroj@xxxxxxxxxxxxxxxx> + * + * This file is dual-licensed: you can use it either under the terms + * of the GPL or the X11 license, at your option. Note that this dual + * licensing only applies to this file, and not this project as a + * whole. + * + * a) This file is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This file is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Or, alternatively, + * + * b) Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#include <arm/imx6ul-liteboard.dts> + +/ { + chosen { + environment-sd { + compatible = "barebox,environment"; + device-path = &environment_sd; + status = "disabled"; + }; + + environment-emmc { + compatible = "barebox,environment"; + device-path = &environment_emmc; + status = "disabled"; + }; + }; +}; + +&usdhc1 { + partitions { + compatible = "fixed-partitions"; + #address-cells = <1>; + #size-cells = <1>; + + partition@0 { + label = "barebox"; + reg = <0x0 0xe0000>; + }; + + environment_sd: partition@e0000 { + label = "barebox-environment"; + reg = <0xe0000 0x20000>; + }; + }; +}; + +&usdhc2 { + partitions { + compatible = "fixed-partitions"; + #address-cells = <1>; + #size-cells = <1>; + + partition@0 { + label = "barebox"; + reg = <0x0 0xe0000>; + }; + + environment_emmc: partition@e0000 { + label = "barebox-environment"; + reg = <0xe0000 0x20000>; + }; + }; +}; diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig index 63a92bd5b..4eabd938f 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -454,6 +454,10 @@ config MACH_NXP_IMX8MQ_EVK select FIRMWARE_IMX8MQ_ATF select ARM_SMCCC +config MACH_GRINN_LITEBOARD + bool "Grinn liteboard" + select ARCH_IMX6UL + endif # ---------------------------------------------------------- diff --git a/images/Makefile.imx b/images/Makefile.imx index 341ce8506..9b5cd577d 100644 --- a/images/Makefile.imx +++ b/images/Makefile.imx @@ -486,6 +486,16 @@ CFG_start_imx6dl_samx6i.pblx.imximg = $(board)/kontron-samx6i/flash-header-samx6 FILE_barebox-imx6dl-samx6i.img = start_imx6dl_samx6i.pblx.imximg image-$(CONFIG_MACH_KONTRON_SAMX6I) += barebox-imx6dl-samx6i.img +pblx-$(CONFIG_MACH_GRINN_LITEBOARD) += start_imx6ul_liteboard_256mb +CFG_start_imx6ul_liteboard_256mb.pblx.imximg = $(board)/grinn-liteboard/flash-header-liteboard-256mb.imxcfg +FILE_barebox-grinn-liteboard-256mb.img = start_imx6ul_liteboard_256mb.pblx.imximg +image-$(CONFIG_MACH_GRINN_LITEBOARD) += barebox-grinn-liteboard-256mb.img + +pblx-$(CONFIG_MACH_GRINN_LITEBOARD) += start_imx6ul_liteboard_512mb +CFG_start_imx6ul_liteboard_512mb.pblx.imximg = $(board)/grinn-liteboard/flash-header-liteboard-512mb.imxcfg +FILE_barebox-grinn-liteboard-512mb.img = start_imx6ul_liteboard_512mb.pblx.imximg +image-$(CONFIG_MACH_GRINN_LITEBOARD) += barebox-grinn-liteboard-512mb.img + pblx-$(CONFIG_MACH_GW_VENTANA) += start_imx6q_gw54xx_1gx64 CFG_start_imx6q_gw54xx_1gx64.pblx.imximg = $(board)/gateworks-ventana/flash-header-ventana-quad-1gx64.imxcfg FILE_barebox-gateworks-imx6q-ventana-1gx64.img = start_imx6q_gw54xx_1gx64.pblx.imximg -- 2.19.0 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
