arm: mx50: add core functions support except clock

Add core definitions and memory map, gpio, irq, iomux, uart device
support.

Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arch/arm/mach-mx5/Kconfig

@@ -1,9 +1,20 @@
 if ARCH_MX5
-# ARCH_MX51 is left for compatibility
+# ARCH_MX51 and ARCH_MX50 are left for compatibility
+
+config ARCH_MX50
+	bool
 
 config ARCH_MX51
 	bool
 
+config SOC_IMX50
+	bool
+	select MXC_TZIC
+	select ARCH_MXC_IOMUX_V3
+	select ARCH_MXC_AUDMUX_V2
+	select ARCH_HAS_CPUFREQ
+	select ARCH_MX50
+
 config	SOC_IMX51
 	bool
 	select MXC_TZIC

arch/arm/mach-mx5/Makefile

@@ -4,6 +4,7 @@
 
 # Object file lists.
 obj-y   := cpu.o mm.o clock-mx51-mx53.o devices.o
+obj-$(CONFIG_SOC_IMX50) += mm-mx50.o
 
 obj-$(CONFIG_CPU_FREQ_IMX)    += cpu_op-mx51.o
 obj-$(CONFIG_MACH_MX51_BABBAGE) += board-mx51_babbage.o

arch/arm/mach-mx5/Makefile.boot

@@ -1,3 +1,6 @@
+   zreladdr-$(CONFIG_ARCH_MX50)	:= 0x70008000
+params_phys-$(CONFIG_ARCH_MX50)	:= 0x70000100
+initrd_phys-$(CONFIG_ARCH_MX50)	:= 0x70800000
    zreladdr-$(CONFIG_ARCH_MX51)	:= 0x90008000
 params_phys-$(CONFIG_ARCH_MX51)	:= 0x90000100
 initrd_phys-$(CONFIG_ARCH_MX51)	:= 0x90800000

arch/arm/mach-mx5/devices-mx50.h

@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * 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.
+
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <mach/mx50.h>
+#include <mach/devices-common.h>
+
+extern const struct imx_imx_uart_1irq_data imx50_imx_uart_data[] __initconst;
+#define imx50_add_imx_uart(id, pdata)	\
+	imx_add_imx_uart_1irq(&imx50_imx_uart_data[id], pdata)

arch/arm/mach-mx5/mm-mx50.c

@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * 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.
+
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Create static mapping between physical to virtual memory.
+ */
+
+#include <linux/mm.h>
+#include <linux/init.h>
+
+#include <asm/mach/map.h>
+
+#include <mach/hardware.h>
+#include <mach/common.h>
+#include <mach/iomux-v3.h>
+
+/*
+ * Define the MX50 memory map.
+ */
+static struct map_desc mx50_io_desc[] __initdata = {
+	imx_map_entry(MX50, TZIC, MT_DEVICE),
+	imx_map_entry(MX50, SPBA0, MT_DEVICE),
+	imx_map_entry(MX50, AIPS1, MT_DEVICE),
+	imx_map_entry(MX50, AIPS2, MT_DEVICE),
+};
+
+/*
+ * This function initializes the memory map. It is called during the
+ * system startup to create static physical to virtual memory mappings
+ * for the IO modules.
+ */
+void __init mx50_map_io(void)
+{
+	mxc_set_cpu_type(MXC_CPU_MX50);
+	mxc_iomux_v3_init(MX50_IO_ADDRESS(MX50_IOMUXC_BASE_ADDR));
+	mxc_arch_reset_init(MX50_IO_ADDRESS(MX50_WDOG_BASE_ADDR));
+	iotable_init(mx50_io_desc, ARRAY_SIZE(mx50_io_desc));
+}
+
+int imx50_register_gpios(void);
+
+void __init mx50_init_irq(void)
+{
+	tzic_init_irq(MX50_IO_ADDRESS(MX50_TZIC_BASE_ADDR));
+	imx50_register_gpios();
+}

arch/arm/plat-mxc/devices/platform-imx-uart.c

@@ -94,6 +94,18 @@ const struct imx_imx_uart_1irq_data imx35_imx_uart_data[] __initconst = {
 };
 #endif /* ifdef CONFIG_SOC_IMX35 */
 
+#ifdef CONFIG_SOC_IMX50
+const struct imx_imx_uart_1irq_data imx50_imx_uart_data[] __initconst = {
+#define imx50_imx_uart_data_entry(_id, _hwid)				\
+	imx_imx_uart_1irq_data_entry(MX50, _id, _hwid, SZ_4K)
+	imx50_imx_uart_data_entry(0, 1),
+	imx50_imx_uart_data_entry(1, 2),
+	imx50_imx_uart_data_entry(2, 3),
+	imx50_imx_uart_data_entry(3, 4),
+	imx50_imx_uart_data_entry(4, 5),
+};
+#endif /* ifdef CONFIG_SOC_IMX50 */
+
 #ifdef CONFIG_SOC_IMX51
 const struct imx_imx_uart_1irq_data imx51_imx_uart_data[] __initconst = {
 #define imx51_imx_uart_data_entry(_id, _hwid)				\

arch/arm/plat-mxc/gpio.c

@@ -445,3 +445,17 @@ static struct mxc_gpio_port imx35_gpio_ports[] = {
 DEFINE_REGISTER_FUNCTION(imx35)
 
 #endif /* if defined(CONFIG_SOC_IMX35) */
+
+#if defined(CONFIG_SOC_IMX50)
+static struct mxc_gpio_port imx50_gpio_ports[] = {
+	DEFINE_IMX_GPIO_PORT_IRQ_HIGH(MX50, 0, 1, MX50_INT_GPIO1_LOW, MX50_INT_GPIO1_HIGH),
+	DEFINE_IMX_GPIO_PORT_IRQ_HIGH(MX50, 1, 2, MX50_INT_GPIO2_LOW, MX50_INT_GPIO2_HIGH),
+	DEFINE_IMX_GPIO_PORT_IRQ_HIGH(MX50, 2, 3, MX50_INT_GPIO3_LOW, MX50_INT_GPIO3_HIGH),
+	DEFINE_IMX_GPIO_PORT_IRQ_HIGH(MX50, 3, 4, MX50_INT_GPIO3_LOW, MX50_INT_GPIO3_HIGH),
+	DEFINE_IMX_GPIO_PORT_IRQ_HIGH(MX50, 4, 5, MX50_INT_GPIO3_LOW, MX50_INT_GPIO3_HIGH),
+	DEFINE_IMX_GPIO_PORT_IRQ_HIGH(MX50, 5, 6, MX50_INT_GPIO3_LOW, MX50_INT_GPIO3_HIGH),
+};
+
+DEFINE_REGISTER_FUNCTION(imx50)
+
+#endif /* if defined(CONFIG_SOC_IMX50) */

arch/arm/plat-mxc/include/mach/common.h

@@ -20,6 +20,7 @@ extern void mx25_map_io(void);
 extern void mx27_map_io(void);
 extern void mx31_map_io(void);
 extern void mx35_map_io(void);
+extern void mx50_map_io(void);
 extern void mx51_map_io(void);
 extern void mx53_map_io(void);
 extern void mxc91231_map_io(void);
@@ -31,6 +32,7 @@ extern void mx25_init_irq(void);
 extern void mx27_init_irq(void);
 extern void mx31_init_irq(void);
 extern void mx35_init_irq(void);
+extern void mx50_init_irq(void);
 extern void mx51_init_irq(void);
 extern void mx53_init_irq(void);
 extern void mxc91231_init_irq(void);

arch/arm/plat-mxc/include/mach/hardware.h

@@ -75,6 +75,11 @@
  *	AVIC	0x68000000+0x100000	->	0xf5800000+0x100000
  *	X_MEMC	0xb8000000+0x010000	->	0xf4c00000+0x010000
  *	SPBA0	0x50000000+0x100000	->	0xf5400000+0x100000
+ * mx50:
+ *	TZIC	0x0fffc000+0x004000	->	0xf4bfc000+0x004000
+ *	SPBA0	0x50000000+0x100000	->	0xf5400000+0x100000
+ *	AIPS1	0x53f00000+0x100000	->	0xf5700000+0x100000
+ *	AIPS2	0x63f00000+0x100000	->	0xf5300000+0x100000
  * mx51:
  *	IRAM	0x1ffe0000+0x020000	->	0xf4fe0000+0x020000
  *	DEBUG	0x60000000+0x100000	->	0xf5000000+0x100000
@@ -100,6 +105,7 @@
 #define IMX_IO_ADDRESS(x)	IOMEM(IMX_IO_P2V(x))
 
 #ifdef CONFIG_ARCH_MX5
+#include <mach/mx50.h>
 #include <mach/mx51.h>
 #include <mach/mx53.h>
 #endif