Merge branch 'for-next/imx'

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();
+}
\ No newline at end of file