add Moschip MSC814x support

This target currently only supports Moschip's MCS8140 SoC, but support
for other chips in the same family (MCS8142, MCS8144) will be easy to add.

Target support is entirely using Device Tree for probing peripherals.
Drivers support include:
- PCI
- USB 1 & 2
- watchdog
- random number generator
- UART
- timer
- internal Ethernet PHY
- Ethernet MAC core

Support for the following boards is included using Device Tree
- Devolo dLAN USB Extender
- Tigal RBT-832

SVN-Revision: 32462

12 files changed, 238 insertions, 0 deletions

diff --git a/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/cpu.h b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/cpu.h
new file mode 100644
index 0000000000..1ef3c4a036
--- /dev/null
+++ b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/cpu.h
@@ -0,0 +1,16 @@
+#ifndef __ASM_ARCH_CPU_H__
+#define __ASM_ARCH_CPU_H__
+
+#include <asm/cputype.h>
+
+#define MCS8140_ID	0x41069260	/* ARM926EJ-S */
+#define MCS814X_MASK	0xff0ffff0
+
+#ifdef CONFIG_MCS8140
+/* Moschip MCS8140 is based on an ARM926EJ-S core */
+#define soc_is_mcs8140()	((read_cpuid_id() & MCS814X_MASK) == MCS8140_ID)
+#else
+#define soc_is_mcs8140()	(0)
+#endif /* !CONFIG_MCS8140 */
+
+#endif /* __ASM_ARCH_CPU_H__ */
diff --git a/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/debug-macro.S b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/debug-macro.S
new file mode 100644
index 0000000000..1f6cad90f7
--- /dev/null
+++ b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/debug-macro.S
@@ -0,0 +1,11 @@
+#include <mach/hardware.h>
+
+                .macro  addruart, rp, rv, tmp
+		ldr	\rp, =_PHYS_CONFADDR
+		ldr	\rv, =_VIRT_CONFADDR
+		orr	\rp, \rp, #_CONFOFFSET_UART
+		orr	\rv, \rv, #_CONFOFFSET_UART
+                .endm
+
+#define UART_SHIFT	2
+#include <asm/hardware/debug-8250.S>
diff --git a/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/entry-macro.S b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/entry-macro.S
new file mode 100644
index 0000000000..9974dad293
--- /dev/null
+++ b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/entry-macro.S
@@ -0,0 +1,6 @@
+#include <mach/hardware.h>
+                .macro  disable_fiq
+                .endm
+
+		.macro arch_ret_to_user, tmp1, tmp2
+		.endm
diff --git a/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/gpio.h b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/gpio.h
new file mode 100644
index 0000000000..20240c2ea2
--- /dev/null
+++ b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/gpio.h
@@ -0,0 +1,21 @@
+#ifndef __ASM_ARCH_GPIO_H
+#define __ASM_ARCH_GPIO_H
+
+/* new generic GPIO API */
+#include <asm-generic/gpio.h>
+
+#define gpio_get_value	__gpio_get_value
+#define gpio_set_value	__gpio_set_value
+#define gpio_cansleep	__gpio_cansleep
+
+static inline int gpio_to_irq(unsigned gpio)
+{
+	return -EINVAL;
+}
+
+static inline int irq_to_gpio(unsigned irq)
+{
+	return -EINVAL;
+}
+
+#endif
diff --git a/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/hardware.h b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/hardware.h
new file mode 100644
index 0000000000..75343c6340
--- /dev/null
+++ b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/hardware.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2003 Artec Design Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __ASM_ARCH_HARDWARE_H
+#define __ASM_ARCH_HARDWARE_H
+
+#define MCS814X_IO_BASE		0xF0000000
+#define MCS814X_IO_START	0x40000000
+#define MCS814X_IO_SIZE		0x00100000
+
+#define _PHYS_CONFADDR		0x40000000
+#define _VIRT_CONFADDR		MCS814X_IO_BASE
+
+#define _CONFOFFSET_UART    0x000DC000
+#define _CONFOFFSET_DBGLED  0x000EC000
+#define _CONFOFFSET_SYSDBG  0x000F8000
+
+#define _CONFADDR_DBGLED  (_VIRT_CONFADDR + _CONFOFFSET_DBGLED)
+#define _CONFADDR_SYSDBG  (_VIRT_CONFADDR + _CONFOFFSET_SYSDBG)
+
+#endif
+
diff --git a/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/io.h b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/io.h
new file mode 100644
index 0000000000..80e56f6ca7
--- /dev/null
+++ b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/io.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2003 Artec Design Ltd.
+ * Copyright (C) 2012, Florian Fainelli <florian@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#define IO_SPACE_LIMIT		0xffffffff
+
+/*
+ * We don't support ins[lb]/outs[lb].  Make them fault.
+ */
+#define __raw_readsb(p, d, l)	do { *(int *)0 = 0; } while (0)
+#define __raw_readsl(p, d, l)	do { *(int *)0 = 0; } while (0)
+#define __raw_writesb(p, d, l)	do { *(int *)0 = 0; } while (0)
+#define __raw_writesl(p, d, l)	do { *(int *)0 = 0; } while (0)
+
+#define __io(a)		__typesafe_io(a)
+#define __mem_pci(a)	(a)
+
+#endif
diff --git a/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/irqs.h b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/irqs.h
new file mode 100644
index 0000000000..78021d132d
--- /dev/null
+++ b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/irqs.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2003 Artec Design Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __ASM_ARCH_IRQS_H
+#define __ASM_ARCH_IRQS_H
+
+#define FIQ_START	0
+
+#define NR_IRQS		32
+
+#define IRQ_PCI_INTA            22
+#define IRQ_PCI_INTB            23
+#define IRQ_PCI_INTC            24
+#define IRQ_PCI_INTD            26
+
+#endif
diff --git a/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/memory.h b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/memory.h
new file mode 100644
index 0000000000..ad87c7ba6a
--- /dev/null
+++ b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/memory.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2003 Artec Design Ltd.
+ * Copyright (C) 2012, Florian Fainelli <florian@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+#define PLAT_PHYS_OFFSET		UL(0x00000000)
+
+#endif
diff --git a/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/param.h b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/param.h
new file mode 100644
index 0000000000..7ffe70b7d5
--- /dev/null
+++ b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/param.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (C) 2003 Artec Design Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __ASM_ARCH_PARAM_H
+#define __ASM_ARCH_PARAM_H
+
+#define HZ 100
+
+#endif
diff --git a/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/system.h b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/system.h
new file mode 100644
index 0000000000..cf5453df25
--- /dev/null
+++ b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/system.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (C) 2003 Artec Design Ltd.
+ * Copyright (C) 2012 Florian Fainelli <florian@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __ASM_ARCH_SYSTEM_H
+#define __ASM_ARCH_SYSTEM_H
+
+static inline void arch_idle(void)
+{
+	cpu_do_idle();
+}
+#endif
diff --git a/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/timex.h b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/timex.h
new file mode 100644
index 0000000000..f05c8eeb6d
--- /dev/null
+++ b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/timex.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (C) 2003 Artec Design Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __ASM_ARCH_TIMEX_H
+#define __ASM_ARCH_TIMEX_H
+
+/*
+ * Timex specification for MCS814X
+ */
+#define CLOCK_TICK_RATE		100
+
+#endif
diff --git a/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/uncompress.h b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/uncompress.h
new file mode 100644
index 0000000000..717f1411fc
--- /dev/null
+++ b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/uncompress.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2012, Florian Fainelli <florian@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ASM_ARCH_UNCOMPRESS_H
+#define __ASM_ARCH_UNCOMPRESS_H
+
+#include <linux/serial_reg.h>
+#include <asm/io.h>
+#include <mach/hardware.h>
+#include <mach/cpu.h>
+
+#define UART_SHIFT	(2)
+
+/* cannot be static because the code will be inlined */
+void __iomem *uart_base;
+
+static inline void putc(int c)
+{
+	while (!(__raw_readb(uart_base + (UART_LSR << UART_SHIFT)) & UART_LSR_TEMT));
+	__raw_writeb(c, uart_base + (UART_TX << UART_SHIFT));
+}
+
+static inline void flush(void)
+{
+}
+
+static inline void arch_decomp_setup(void)
+{
+	if (soc_is_mcs8140())
+		uart_base = (void __iomem *)(_PHYS_CONFADDR + _CONFOFFSET_UART);
+}
+
+#define arch_decomp_wdog()
+
+#endif