ARM: MXS: Add duckbill board support

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

4 files changed, 158 insertions, 0 deletions

diff --git a/arch/arm/boards/Makefile b/arch/arm/boards/Makefile
index 9961ca8f11..d81d3601e8 100644
--- a/arch/arm/boards/Makefile
+++ b/arch/arm/boards/Makefile
@@ -20,6 +20,7 @@ obj-$(CONFIG_MACH_CFA10036)			+= crystalfontz-cfa10036/
 obj-$(CONFIG_MACH_CHUMBY)			+= chumby_falconwing/
 obj-$(CONFIG_MACH_CLEP7212)			+= clep7212/
 obj-$(CONFIG_MACH_DFI_FS700_M60)		+= dfi-fs700-m60/
+obj-$(CONFIG_MACH_DUCKBILL)			+= duckbill/
 obj-$(CONFIG_MACH_DSS11)			+= dss11/
 obj-$(CONFIG_MACH_EDB93012)			+= edb93xx/
 obj-$(CONFIG_MACH_EDB9301)			+= edb93xx/
diff --git a/arch/arm/boards/duckbill/Makefile b/arch/arm/boards/duckbill/Makefile
new file mode 100644
index 0000000000..01c7a259e9
--- /dev/null
+++ b/arch/arm/boards/duckbill/Makefile
@@ -0,0 +1,2 @@
+obj-y += board.o
+lwl-y += lowlevel.o
diff --git a/arch/arm/boards/duckbill/board.c b/arch/arm/boards/duckbill/board.c
new file mode 100644
index 0000000000..3c6ab8e596
--- /dev/null
+++ b/arch/arm/boards/duckbill/board.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2010 Juergen Beisert, Pengutronix <kernel@pengutronix.de>
+ * Copyright (C) 2011 Marc Kleine-Budde, Pengutronix <mkl@pengutronix.de>
+ * Copyright (C) 2011 Wolfram Sang, Pengutronix <w.sang@pengutronix.de>
+ *
+ * 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 <environment.h>
+#include <errno.h>
+#include <gpio.h>
+#include <init.h>
+#include <io.h>
+#include <net.h>
+
+#include <mach/clock.h>
+#include <mach/imx-regs.h>
+#include <mach/iomux-imx28.h>
+#include <mach/iomux.h>
+#include <mach/ocotp.h>
+#include <mach/devices.h>
+#include <mach/usb.h>
+#include <usb/fsl_usb2.h>
+
+#include <asm/armlinux.h>
+#include <asm/mmu.h>
+
+static void duckbill_get_ethaddr(void)
+{
+	u8 mac_ocotp[3], mac[6];
+	int ret;
+
+	ret = mxs_ocotp_read(mac_ocotp, 3, 0);
+	if (ret != 3) {
+		pr_err("Reading MAC from OCOTP failed!\n");
+		return;
+	}
+
+	mac[0] = 0x00;
+	mac[1] = 0x04;
+	mac[2] = 0x9f;
+	mac[3] = mac_ocotp[2];
+	mac[4] = mac_ocotp[1];
+	mac[5] = mac_ocotp[0];
+
+	eth_register_ethaddr(0, mac);
+}
+
+static struct fsl_usb2_platform_data usb_pdata = {
+	.operating_mode	= FSL_USB2_DR_DEVICE,
+	.phy_mode	= FSL_USB2_PHY_UTMI,
+};
+
+static int duckbill_devices_init(void)
+{
+	duckbill_get_ethaddr(); /* must be after registering ocotp */
+
+	imx28_usb_phy0_enable();
+	add_generic_device("fsl-udc", DEVICE_ID_DYNAMIC, NULL, IMX_USB0_BASE,
+			   0x200, IORESOURCE_MEM, &usb_pdata);
+
+	return 0;
+}
+fs_initcall(duckbill_devices_init);
+
+static int duckbill_console_init(void)
+{
+	barebox_set_model("I2SE Duckbill");
+	barebox_set_hostname("duckbill");
+
+	return 0;
+}
+console_initcall(duckbill_console_init);
diff --git a/arch/arm/boards/duckbill/lowlevel.c b/arch/arm/boards/duckbill/lowlevel.c
new file mode 100644
index 0000000000..77d2e83aed
--- /dev/null
+++ b/arch/arm/boards/duckbill/lowlevel.c
@@ -0,0 +1,73 @@
+#define pr_fmt(fmt) "Freescale MX28evk: " fmt
+#define DEBUG
+
+#include <common.h>
+#include <linux/sizes.h>
+#include <asm/barebox-arm-head.h>
+#include <asm/barebox-arm.h>
+#include <mach/imx28-regs.h>
+#include <mach/init.h>
+#include <io.h>
+#include <debug_ll.h>
+#include <mach/iomux.h>
+#include <stmp-device.h>
+
+extern char __dtb_imx28_duckbill_start[];
+
+ENTRY_FUNCTION(start_barebox_duckbill, r0, r1, r2)
+{
+	void *fdt;
+
+	pr_debug("here we are!\n");
+
+	fdt = __dtb_imx28_duckbill_start - get_runtime_offset();
+
+	barebox_arm_entry(IMX_MEMORY_BASE, SZ_128M, fdt);
+}
+
+static const uint32_t iomux_pads[] = {
+	/* EMI */
+	EMI_DATA0, EMI_DATA1, EMI_DATA2, EMI_DATA3, EMI_DATA4, EMI_DATA5,
+	EMI_DATA6, EMI_DATA7, EMI_DATA8, EMI_DATA9, EMI_DATA10, EMI_DATA11,
+	EMI_DATA12, EMI_DATA13, EMI_DATA14, EMI_DATA15, EMI_ODT0, EMI_DQM0,
+	EMI_ODT1, EMI_DQM1, EMI_DDR_OPEN_FB, EMI_CLK, EMI_DSQ0, EMI_DSQ1,
+	EMI_DDR_OPEN, EMI_A0, EMI_A1, EMI_A2, EMI_A3, EMI_A4, EMI_A5,
+	EMI_A6, EMI_A7, EMI_A8, EMI_A9, EMI_A10, EMI_A11, EMI_A12, EMI_A13,
+	EMI_A14, EMI_BA0, EMI_BA1, EMI_BA2, EMI_CASN, EMI_RASN, EMI_WEN,
+	EMI_CE0N, EMI_CE1N, EMI_CKE,
+
+	/* Debug UART */
+	PWM0_DUART_RX | VE_3_3V,
+	PWM1_DUART_TX | VE_3_3V,
+};
+
+static noinline void duckbill_init(void)
+{
+	int i;
+
+	/* initialize muxing */
+	for (i = 0; i < ARRAY_SIZE(iomux_pads); i++)
+		imx_gpio_mode(iomux_pads[i]);
+
+	pr_debug("initializing power...\n");
+
+	mx28_power_init(0, 0, 1);
+
+	pr_debug("initializing SDRAM...\n");
+
+	mx28_mem_init();
+
+	pr_debug("DONE\n");
+}
+
+ENTRY_FUNCTION(prep_start_barebox_duckbill, r0, r1, r2)
+{
+	void (*back)(unsigned long) = (void *)get_lr();
+
+	relocate_to_current_adr();
+	setup_c();
+
+	duckbill_init();
+
+	back(0);
+}