diff options
Diffstat (limited to 'arch/arm/boards/element14-warp7')
-rw-r--r-- | arch/arm/boards/element14-warp7/Makefile | 2 | ||||
-rw-r--r-- | arch/arm/boards/element14-warp7/board.c | 35 | ||||
-rw-r--r-- | arch/arm/boards/element14-warp7/flash-header-mx7-warp.imxcfg | 81 | ||||
-rw-r--r-- | arch/arm/boards/element14-warp7/lowlevel.c | 48 |
4 files changed, 166 insertions, 0 deletions
diff --git a/arch/arm/boards/element14-warp7/Makefile b/arch/arm/boards/element14-warp7/Makefile new file mode 100644 index 0000000000..01c7a259e9 --- /dev/null +++ b/arch/arm/boards/element14-warp7/Makefile @@ -0,0 +1,2 @@ +obj-y += board.o +lwl-y += lowlevel.o diff --git a/arch/arm/boards/element14-warp7/board.c b/arch/arm/boards/element14-warp7/board.c new file mode 100644 index 0000000000..84fc885da1 --- /dev/null +++ b/arch/arm/boards/element14-warp7/board.c @@ -0,0 +1,35 @@ +/* + * Copyright (C) 2017 Sascha Hauer, Pengutronix + * + * 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; either version 2 of + * the License, or (at your option) any later version. + * + * 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 <common.h> +#include <init.h> +#include <environment.h> +#include <mach/bbu.h> +#include <asm/armlinux.h> +#include <generated/mach-types.h> +#include <partition.h> +#include <mach/generic.h> +#include <linux/sizes.h> + +static int warp7_devices_init(void) +{ + if (!of_machine_is_compatible("warp,imx7s-warp")) + return 0; + + imx6_bbu_internal_mmc_register_handler("mmc", "/dev/mmc2.boot0.barebox", + BBU_HANDLER_FLAG_DEFAULT); + + return 0; +} +device_initcall(warp7_devices_init); diff --git a/arch/arm/boards/element14-warp7/flash-header-mx7-warp.imxcfg b/arch/arm/boards/element14-warp7/flash-header-mx7-warp.imxcfg new file mode 100644 index 0000000000..a3389218d5 --- /dev/null +++ b/arch/arm/boards/element14-warp7/flash-header-mx7-warp.imxcfg @@ -0,0 +1,81 @@ +/* + * Copyright (C) 2016 NXP Semiconductors + * + * SPDX-License-Identifier: GPL-2.0 + * + * Refer docs/README.imxmage for more details about how-to configure + * and create imximage boot image + * + * The syntax is taken as close as possible with the kwbimage + */ + +soc imx7 +loadaddr 0x80000000 +dcdofs 0x400 + +wm 32 0x30340004 0x4F400005 + +wm 32 0x30391000 0x00000002 +wm 32 0x307a0000 0x03040008 +wm 32 0x307a0064 0x00200038 +wm 32 0x307a0490 0x00000001 +wm 32 0x307a00d0 0x00350001 +wm 32 0x307a00dc 0x00c3000a +wm 32 0x307a00e0 0x00010000 +wm 32 0x307a00e4 0x00110006 +wm 32 0x307a00f4 0x0000033f +wm 32 0x307a0100 0x0a0e110b +wm 32 0x307a0104 0x00020211 +wm 32 0x307a0108 0x03060708 +wm 32 0x307a010c 0x00a0500c +wm 32 0x307a0110 0x05020307 +wm 32 0x307a0114 0x02020404 +wm 32 0x307a0118 0x02020003 +wm 32 0x307a011c 0x00000202 +wm 32 0x307a0120 0x00000202 + +wm 32 0x307a0180 0x00600018 +wm 32 0x307a0184 0x00e00100 +wm 32 0x307a0190 0x02098205 +wm 32 0x307a0194 0x00060303 +wm 32 0x307a01a0 0x80400003 +wm 32 0x307a01a4 0x00100020 +wm 32 0x307a01a8 0x80100004 + +wm 32 0x307a0200 0x00000015 +wm 32 0x307a0204 0x00161616 +wm 32 0x307a0210 0x00000f0f +wm 32 0x307a0214 0x04040404 +wm 32 0x307a0218 0x0f0f0404 + +wm 32 0x307a0240 0x06000600 +wm 32 0x307a0244 0x00000000 +wm 32 0x30391000 0x00000000 +wm 32 0x30790000 0x17421e40 +wm 32 0x30790004 0x10210100 +wm 32 0x30790008 0x00010000 +wm 32 0x30790010 0x0007080c +wm 32 0x307900b0 0x1010007e + +wm 32 0x3079001C 0x01010000 +wm 32 0x3079009c 0x00000d6e + +wm 32 0x30790030 0x06060606 +wm 32 0x30790020 0x0a0a0a0a +wm 32 0x30790050 0x01000008 +wm 32 0x30790050 0x00000008 +wm 32 0x30790018 0x0000000f +wm 32 0x307900c0 0x0e487304 +wm 32 0x307900c0 0x0e4c7304 +wm 32 0x307900c0 0x0e4c7306 +wm 32 0x307900c0 0x0e4c7304 + +check 32 while_any_bit_clear 0x307900c4 0x1 + +wm 32 0x307900c0 0x0e487304 + +wm 32 0x30384130 0x00000000 +wm 32 0x30340020 0x00000178 +wm 32 0x30384130 0x00000002 + +check 32 while_any_bit_clear 0x307a0004 0x1 diff --git a/arch/arm/boards/element14-warp7/lowlevel.c b/arch/arm/boards/element14-warp7/lowlevel.c new file mode 100644 index 0000000000..38b7745f64 --- /dev/null +++ b/arch/arm/boards/element14-warp7/lowlevel.c @@ -0,0 +1,48 @@ +#define DEBUG +#include <io.h> +#include <common.h> +#include <linux/sizes.h> +#include <mach/generic.h> +#include <asm/barebox-arm-head.h> +#include <asm/barebox-arm.h> +#include <mach/debug_ll.h> +#include <asm/cache.h> + +extern char __dtb_imx7s_warp_start[]; + +static noinline void warp7_start(void) +{ + void __iomem *iomuxbase = IOMEM(MX7_IOMUXC_BASE_ADDR); + void __iomem *uart = IOMEM(MX7_UART1_BASE_ADDR); + void __iomem *ccmbase = IOMEM(MX7_CCM_BASE_ADDR); + void *fdt; + + writel(0x3, ccmbase + 0x4000 + 16 * 148 + 0x8); + writel(0x10000000, ccmbase + 0x8000 + 128 * 95); + writel(0x3, ccmbase + 0x4000 + 16 * 148 + 0x4); + writel(0x0, iomuxbase + 0x128); + writel(0x0, iomuxbase + 0x12c); + + imx7_uart_setup(uart); + + pbl_set_putc(imx_uart_putc, uart); + + pr_debug("Element14 i.MX7 Warp\n"); + + fdt = __dtb_imx7s_warp_start - get_runtime_offset(); + + barebox_arm_entry(0x80000000, SZ_512M, fdt); +} + +ENTRY_FUNCTION(start_imx7s_element14_warp7, r0, r1, r2) +{ + imx7_cpu_lowlevel_init(); + + arm_early_mmu_cache_invalidate(); + + relocate_to_current_adr(); + setup_c(); + barrier(); + + warp7_start(); +}
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