ARM: gk802: Add support for Zealz GK802

Add support for the GK802 'QUAD CORE Mini PC', which seems to be loosely
based on the Freescale i.MX6Q HDMI dongle reference design.
It is supposedly identical to the Hiapad Hi802.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

6 files changed, 209 insertions, 0 deletions

diff --git a/arch/arm/boards/Makefile b/arch/arm/boards/Makefile
index 6d1e98d4c8..e2c60084c4 100644
--- a/arch/arm/boards/Makefile
+++ b/arch/arm/boards/Makefile
@@ -24,6 +24,7 @@ obj-$(CONFIG_MACH_FREESCALE_MX35_3STACK)	+= freescale-mx35-3-stack/
 obj-$(CONFIG_MACH_FREESCALE_MX51_PDK)		+= freescale-mx51-pdk/
 obj-$(CONFIG_MACH_FREESCALE_MX53_LOCO)		+= freescale-mx53-loco/
 obj-$(CONFIG_MACH_FREESCALE_MX53_SMD)		+= freescale-mx53-smd/
+obj-$(CONFIG_MACH_GK802)			+= gk802/
 obj-$(CONFIG_MACH_GLOBALSCALE_GURUPLUG)		+= globalscale-guruplug/
 obj-$(CONFIG_MACH_GLOBALSCALE_MIRABOX)		+= globalscale-mirabox/
 obj-$(CONFIG_MACH_GUF_CUPID)			+= guf-cupid/
diff --git a/arch/arm/boards/gk802/Makefile b/arch/arm/boards/gk802/Makefile
new file mode 100644
index 0000000000..d9c7ab60ed
--- /dev/null
+++ b/arch/arm/boards/gk802/Makefile
@@ -0,0 +1,3 @@
+obj-y += board.o flash-header.dcd.o
+extra-y += flash-header.dcd.S flash-header.dcd
+lwl-y += lowlevel.o
diff --git a/arch/arm/boards/gk802/board.c b/arch/arm/boards/gk802/board.c
new file mode 100644
index 0000000000..3c703a8463
--- /dev/null
+++ b/arch/arm/boards/gk802/board.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2013 Philipp Zabel
+ *
+ * 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 <asm/armlinux.h>
+#include <asm/io.h>
+#include <bootsource.h>
+#include <common.h>
+#include <environment.h>
+#include <envfs.h>
+#include <gpio.h>
+#include <init.h>
+#include <mach/generic.h>
+#include <mach/imx6-regs.h>
+#include <mach/imx6.h>
+#include <mfd/imx6q-iomuxc-gpr.h>
+#include <sizes.h>
+
+#define GK802_GPIO_RECOVERY_BTN	IMX_GPIO_NR(3, 16)	/* recovery button */
+#define GK802_GPIO_RTL8192_PDN	IMX_GPIO_NR(2, 0)	/* RTL8192CU powerdown */
+
+static int gk802_env_init(void)
+{
+	char *bootsource_name;
+	char *barebox_name;
+	char *default_environment_name;
+
+	if (!of_machine_is_compatible("zealz,imx6q-gk802"))
+		return 0;
+
+	/* Keep RTL8192CU disabled */
+	gpio_direction_output(GK802_GPIO_RTL8192_PDN, 1);
+
+	gpio_direction_input(GK802_GPIO_RECOVERY_BTN);
+	setenv("recovery", gpio_get_value(GK802_GPIO_RECOVERY_BTN) ? "0" : "1");
+
+	if (bootsource_get() != BOOTSOURCE_MMC)
+		return 0;
+
+	switch (bootsource_get_instance()) {
+	case 2:
+		bootsource_name = "mmc2";
+		barebox_name = "mmc2.barebox";
+		default_environment_name = "mmc2.bareboxenv";
+		default_environment_path = "/dev/mmc2.bareboxenv";
+		break;
+	case 3:
+		bootsource_name = "mmc3";
+		barebox_name = "mmc3.barebox";
+		default_environment_name = "mmc3.bareboxenv";
+		default_environment_path = "/dev/mmc3.bareboxenv";
+		break;
+	default:
+		return 0;
+	}
+
+	device_detect_by_name(bootsource_name);
+	devfs_add_partition(bootsource_name, 0x00000, SZ_512K, DEVFS_PARTITION_FIXED, barebox_name);
+	devfs_add_partition(bootsource_name, SZ_512K, SZ_512K, DEVFS_PARTITION_FIXED, default_environment_name);
+
+	return 0;
+}
+late_initcall(gk802_env_init);
+
+static int gk802_console_init(void)
+{
+	if (!of_machine_is_compatible("zealz,imx6q-gk802"))
+		return 0;
+
+	imx6_init_lowlevel();
+
+	return 0;
+}
+postcore_initcall(gk802_console_init);
diff --git a/arch/arm/boards/gk802/env/config-board b/arch/arm/boards/gk802/env/config-board
new file mode 100644
index 0000000000..99540e9a63
--- /dev/null
+++ b/arch/arm/boards/gk802/env/config-board
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+# board defaults, do not change in running system. Change /env/config
+# instead
+
+global.hostname=gk802
+global.linux.bootargs.base="console=ttymxc3,115200"
diff --git a/arch/arm/boards/gk802/flash-header.imxcfg b/arch/arm/boards/gk802/flash-header.imxcfg
new file mode 100644
index 0000000000..9638b02bda
--- /dev/null
+++ b/arch/arm/boards/gk802/flash-header.imxcfg
@@ -0,0 +1,96 @@
+loadaddr 0x10000000
+soc imx6
+dcdofs 0x400
+wm 32 0x020e05a8 0x00000030
+wm 32 0x020e05b0 0x00000030
+wm 32 0x020e0524 0x00000030
+wm 32 0x020e051c 0x00000030
+wm 32 0x020e0518 0x00000030
+wm 32 0x020e050c 0x00000030
+wm 32 0x020e05b8 0x00000030
+wm 32 0x020e05c0 0x00000030
+wm 32 0x020e05ac 0x00020030
+wm 32 0x020e05b4 0x00020030
+wm 32 0x020e0528 0x00020030
+wm 32 0x020e0520 0x00020030
+wm 32 0x020e0514 0x00020030
+wm 32 0x020e0510 0x00020030
+wm 32 0x020e05bc 0x00020030
+wm 32 0x020e05c4 0x00020030
+wm 32 0x020e056c 0x00020030
+wm 32 0x020e0578 0x00020030
+wm 32 0x020e0588 0x00020030
+wm 32 0x020e0594 0x00020030
+wm 32 0x020e057c 0x00020030
+wm 32 0x020e0590 0x00003000
+wm 32 0x020e0598 0x00003000
+wm 32 0x020e058c 0x00000000
+wm 32 0x020e059c 0x00003030
+wm 32 0x020e05a0 0x00003030
+wm 32 0x020e0784 0x00000030
+wm 32 0x020e0788 0x00000030
+wm 32 0x020e0794 0x00000030
+wm 32 0x020e079c 0x00000030
+wm 32 0x020e07a0 0x00000030
+wm 32 0x020e07a4 0x00000030
+wm 32 0x020e07a8 0x00000030
+wm 32 0x020e0748 0x00000030
+wm 32 0x020e074c 0x00000030
+wm 32 0x020e0750 0x00020000
+wm 32 0x020e0758 0x00000000
+wm 32 0x020e0774 0x00020000
+wm 32 0x020e078c 0x00000030
+wm 32 0x020e0798 0x000c0000
+wm 32 0x021b081c 0x33333333
+wm 32 0x021b0820 0x33333333
+wm 32 0x021b0824 0x33333333
+wm 32 0x021b0828 0x33333333
+wm 32 0x021b481c 0x33333333
+wm 32 0x021b4820 0x33333333
+wm 32 0x021b4824 0x33333333
+wm 32 0x021b4828 0x33333333
+wm 32 0x021b0018 0x00081740
+wm 32 0x021b001c 0x00008000
+wm 32 0x021b000c 0x555a7975
+wm 32 0x021b0010 0xff538e64
+wm 32 0x021b0014 0x01ff00db
+wm 32 0x021b002c 0x000026d2
+wm 32 0x021b0030 0x005b0e21
+wm 32 0x021b0008 0x09444040
+wm 32 0x021b0004 0x00025576
+wm 32 0x021b0040 0x00000027
+wm 32 0x021b0000 0x831a0000
+wm 32 0x021b001c 0x04088032
+wm 32 0x021b001c 0x0408803a
+wm 32 0x021b001c 0x00008033
+wm 32 0x021b001c 0x0000803b
+wm 32 0x021b001c 0x00428031
+wm 32 0x021b001c 0x00428039
+wm 32 0x021b001c 0x09408030
+wm 32 0x021b001c 0x09408038
+wm 32 0x021b001c 0x04008040
+wm 32 0x021b001c 0x04008048
+wm 32 0x021b0800 0xa1380003
+wm 32 0x021b4800 0xa1380003
+wm 32 0x021b0020 0x00005800
+wm 32 0x021b0818 0x00000007
+wm 32 0x021b4818 0x00000007
+wm 32 0x021b083c 0x427b030a
+wm 32 0x021b0840 0x02740269
+wm 32 0x021b483c 0x43100313
+wm 32 0x021b4840 0x027d024d
+wm 32 0x021b0848 0x46384240
+wm 32 0x021b4848 0x4442414a
+wm 32 0x021b0850 0x45444645
+wm 32 0x021b4850 0x4a354946
+wm 32 0x021b080c 0x001f001f
+wm 32 0x021b0810 0x001f001f
+wm 32 0x021b480c 0x00440044
+wm 32 0x021b4810 0x00440044
+wm 32 0x021b08b8 0x00000800
+wm 32 0x021b48b8 0x00000800
+wm 32 0x021b001c 0x00000000
+wm 32 0x021b0404 0x00011006
+wm 32 0x020e0010 0xf00000ff
+wm 32 0x020e0018 0x007f007f
+wm 32 0x020e001c 0x007f007f
diff --git a/arch/arm/boards/gk802/lowlevel.c b/arch/arm/boards/gk802/lowlevel.c
new file mode 100644
index 0000000000..95b218d2d2
--- /dev/null
+++ b/arch/arm/boards/gk802/lowlevel.c
@@ -0,0 +1,18 @@
+#include <common.h>
+#include <sizes.h>
+#include <asm/barebox-arm-head.h>
+#include <asm/barebox-arm.h>
+
+extern char __dtb_imx6q_gk802_start[];
+
+ENTRY_FUNCTION(start_imx6_gk802)(void)
+{
+	uint32_t fdt;
+
+	__barebox_arm_head();
+
+	arm_cpu_lowlevel_init();
+
+	fdt = (uint32_t)__dtb_imx6q_gk802_start - get_runtime_offset();
+	barebox_arm_entry(0x10000000, SZ_1G, fdt);
+}