[ARM] mmp: add support for Marvell MMP2

Marvell MMP2 (aka ARMADA610) is a SoC based on PJ4 core. It's
ARMv6 compatible.  Support basic interrupt handler and timer,
and basic support for MMP2 based FLINT platform.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

arch/arm/Kconfig

@@ -497,7 +497,7 @@ config ARCH_ORION5X
 	  Orion-2 (5281), Orion-1-90 (6183).
 
 config ARCH_MMP
-	bool "Marvell PXA168/910"
+	bool "Marvell PXA168/910/MMP2"
 	depends on MMU
 	select GENERIC_GPIO
 	select ARCH_REQUIRE_GPIOLIB
@@ -508,7 +508,7 @@ config ARCH_MMP
 	select TICK_ONESHOT
 	select PLAT_PXA
 	help
-	  Support for Marvell's PXA168/910 processor line.
+	  Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
 
 config ARCH_KS8695
 	bool "Micrel/Kendin KS8695"

arch/arm/mach-mmp/Kconfig

@@ -1,6 +1,6 @@
 if ARCH_MMP
 
-menu "Marvell PXA168/910 Implmentations"
+menu "Marvell PXA168/910/MMP2 Implmentations"
 
 config MACH_ASPENITE
 	bool "Marvell's PXA168 Aspenite Development Board"
@@ -37,6 +37,16 @@ config MACH_TTC_DKB
 	  Say 'Y' here if you want to support the Marvell PXA910-based
 	  TTC_DKB Development Board.
 
+config MACH_FLINT
+	bool "Marvell's Flint Development Platform"
+	select CPU_MMP2
+	help
+	  Say 'Y' here if you want to support the Marvell MMP2-based
+	  Flint Development Platform.
+	  MMP2-based board can't be co-existed with PXA168-based &
+	  PXA910-based development board. Since MMP2 is compatible to
+	  ARMv6 architecture.
+
 endmenu
 
 config CPU_PXA168
@@ -51,4 +61,10 @@ config CPU_PXA910
 	help
 	  Select code specific to PXA910
 
+config CPU_MMP2
+	bool
+	select CPU_V6
+	select CPU_32v6K
+	help
+	  Select code specific to MMP2. MMP2 is ARMv6 compatible.
 endif

arch/arm/mach-mmp/Makefile

@@ -7,10 +7,12 @@ obj-y				+= common.o clock.o devices.o time.o
 # SoC support
 obj-$(CONFIG_CPU_PXA168)	+= pxa168.o irq-pxa168.o
 obj-$(CONFIG_CPU_PXA910)	+= pxa910.o irq-pxa168.o
+obj-$(CONFIG_CPU_MMP2)		+= mmp2.o irq-mmp2.o
 
 # board support
 obj-$(CONFIG_MACH_ASPENITE)	+= aspenite.o
 obj-$(CONFIG_MACH_ZYLONITE2)	+= aspenite.o
 obj-$(CONFIG_MACH_AVENGERS_LITE)+= avengers_lite.o
 obj-$(CONFIG_MACH_TAVOREVB)	+= tavorevb.o
 obj-$(CONFIG_MACH_TTC_DKB)	+= ttc_dkb.o
+obj-$(CONFIG_MACH_FLINT)	+= flint.o

arch/arm/mach-mmp/common.h

@@ -6,8 +6,10 @@ extern void timer_init(int irq);
 
 extern struct sys_timer pxa168_timer;
 extern struct sys_timer pxa910_timer;
+extern struct sys_timer mmp2_timer;
 extern void __init pxa168_init_irq(void);
 extern void __init pxa910_init_irq(void);
+extern void __init mmp2_init_irq(void);
 
 extern void __init icu_init_irq(void);
 extern void __init pxa_map_io(void);

arch/arm/mach-mmp/flint.c

@@ -0,0 +1,123 @@
+/*
+ *  linux/arch/arm/mach-mmp/flint.c
+ *
+ *  Support for the Marvell Flint Development Platform.
+ *
+ *  Copyright (C) 2009 Marvell International 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
+ *  publishhed by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/smc91x.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <mach/addr-map.h>
+#include <mach/mfp-mmp2.h>
+#include <mach/mmp2.h>
+
+#include "common.h"
+
+static unsigned long flint_pin_config[] __initdata = {
+	/* UART1 */
+	GPIO45_UART1_RXD,
+	GPIO46_UART1_TXD,
+
+	/* UART2 */
+	GPIO47_UART2_RXD,
+	GPIO48_UART2_TXD,
+
+	/* SMC */
+	GPIO151_SMC_SCLK,
+	GPIO145_SMC_nCS0,
+	GPIO146_SMC_nCS1,
+	GPIO152_SMC_BE0,
+	GPIO153_SMC_BE1,
+	GPIO154_SMC_IRQ,
+	GPIO113_SMC_RDY,
+
+	/*Ethernet*/
+	GPIO155_GPIO155,
+
+	/* DFI */
+	GPIO168_DFI_D0,
+	GPIO167_DFI_D1,
+	GPIO166_DFI_D2,
+	GPIO165_DFI_D3,
+	GPIO107_DFI_D4,
+	GPIO106_DFI_D5,
+	GPIO105_DFI_D6,
+	GPIO104_DFI_D7,
+	GPIO111_DFI_D8,
+	GPIO164_DFI_D9,
+	GPIO163_DFI_D10,
+	GPIO162_DFI_D11,
+	GPIO161_DFI_D12,
+	GPIO110_DFI_D13,
+	GPIO109_DFI_D14,
+	GPIO108_DFI_D15,
+	GPIO143_ND_nCS0,
+	GPIO144_ND_nCS1,
+	GPIO147_ND_nWE,
+	GPIO148_ND_nRE,
+	GPIO150_ND_ALE,
+	GPIO149_ND_CLE,
+	GPIO112_ND_RDY0,
+	GPIO160_ND_RDY1,
+};
+
+static struct smc91x_platdata flint_smc91x_info = {
+	.flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
+};
+
+static struct resource smc91x_resources[] = {
+	[0] = {
+		.start  = SMC_CS1_PHYS_BASE + 0x300,
+		.end    = SMC_CS1_PHYS_BASE + 0xfffff,
+		.flags  = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start  = gpio_to_irq(155),
+		.end    = gpio_to_irq(155),
+		.flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
+	}
+};
+
+static struct platform_device smc91x_device = {
+	.name           = "smc91x",
+	.id             = 0,
+	.dev            = {
+		.platform_data = &flint_smc91x_info,
+	},
+	.num_resources  = ARRAY_SIZE(smc91x_resources),
+	.resource       = smc91x_resources,
+};
+
+static void __init flint_init(void)
+{
+	mfp_config(ARRAY_AND_SIZE(flint_pin_config));
+
+	/* on-chip devices */
+	mmp2_add_uart(1);
+	mmp2_add_uart(2);
+
+	/* off-chip devices */
+	platform_device_register(&smc91x_device);
+}
+
+MACHINE_START(FLINT, "Flint Development Platform")
+	.phys_io        = APB_PHYS_BASE,
+	.boot_params    = 0x00000100,
+	.io_pg_offst    = (APB_VIRT_BASE >> 18) & 0xfffc,
+	.map_io		= pxa_map_io,
+	.init_irq       = mmp2_init_irq,
+	.timer          = &mmp2_timer,
+	.init_machine   = flint_init,
+MACHINE_END

arch/arm/mach-mmp/include/mach/cputype.h

@@ -8,6 +8,7 @@
  *
  * PXA168    A0    0x41159263   0x56158400   0x00A0A333
  * PXA910    Y0    0x41159262   0x56158000   0x00F0C910
+ * MMP2	     Z0			0x560f5811
  */
 
 #ifdef CONFIG_CPU_PXA168
@@ -24,7 +25,15 @@
 #  define __cpu_is_pxa910(id)	(0)
 #endif
 
+#ifdef CONFIG_CPU_MMP2
+#  define __cpu_is_mmp2(id)	\
+	({ unsigned int _id = ((id) >> 8) & 0xff; _id == 0x58; })
+#else
+#  define __cpu_is_mmp2(id)	(0)
+#endif
+
 #define cpu_is_pxa168()		({ __cpu_is_pxa168(read_cpuid_id()); })
 #define cpu_is_pxa910()		({ __cpu_is_pxa910(read_cpuid_id()); })
+#define cpu_is_mmp2()		({ __cpu_is_mmp2(read_cpuid_id()); })
 
 #endif /* __ASM_MACH_CPUTYPE_H */

arch/arm/mach-mmp/include/mach/devices.h

@@ -34,4 +34,16 @@ struct pxa_device_desc pxa910_device_##_name __initdata = {		\
 	.size		= _size,					\
 	.dma		= { _dma },					\
 };
+
+#define MMP2_DEVICE(_name, _drv, _id, _irq, _start, _size, _dma...)	\
+struct pxa_device_desc mmp2_device_##_name __initdata = {		\
+	.dev_name	= "mmp2-" #_name,				\
+	.drv_name	= _drv,						\
+	.id		= _id,						\
+	.irq		= IRQ_MMP2_##_irq,				\
+	.start		= _start,					\
+	.size		= _size,					\
+	.dma		= { _dma },					\
+}
+
 extern int pxa_register_device(struct pxa_device_desc *, void *, size_t);

arch/arm/mach-mmp/include/mach/entry-macro.S

@@ -15,7 +15,12 @@
 	.endm
 
 	.macro	get_irqnr_preamble, base, tmp
-	ldr	\base, =ICU_AP_IRQ_SEL_INT_NUM
+	mrc	p15, 0, \tmp, c0, c0, 0		@ CPUID
+	and	\tmp, \tmp, #0xff00
+	cmp	\tmp, #0x5800
+	ldr	\base, =ICU_VIRT_BASE
+	addne	\base, \base, #0x10c		@ PJ1 AP INT SEL register
+	addeq	\base, \base, #0x104		@ PJ4 IRQ SEL register
 	.endm
 
 	.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp

arch/arm/mach-mmp/include/mach/irqs.h

@@ -113,8 +113,113 @@
 #define IRQ_PXA910_AP_PMU		60
 #define IRQ_PXA910_SM_INT		63	/* from PinMux */
 
-#define IRQ_GPIO_START			64
-#define IRQ_GPIO_NUM			128
+/*
+ * Interrupt numbers for MMP2
+ */
+#define IRQ_MMP2_NONE			(-1)
+#define IRQ_MMP2_SSP1			0
+#define IRQ_MMP2_SSP2			1
+#define IRQ_MMP2_SSPA1			2
+#define IRQ_MMP2_SSPA2			3
+#define IRQ_MMP2_PMIC_MUX		4	/* PMIC & Charger */
+#define IRQ_MMP2_RTC_MUX		5
+#define IRQ_MMP2_TWSI1			7
+#define IRQ_MMP2_GPU			8
+#define IRQ_MMP2_KEYPAD			9
+#define IRQ_MMP2_ROTARY			10
+#define IRQ_MMP2_TRACKBALL		11
+#define IRQ_MMP2_ONEWIRE		12
+#define IRQ_MMP2_TIMER1			13
+#define IRQ_MMP2_TIMER2			14
+#define IRQ_MMP2_TIMER3			15
+#define IRQ_MMP2_RIPC			16
+#define IRQ_MMP2_TWSI_MUX		17	/* TWSI2 ~ TWSI6 */
+#define IRQ_MMP2_HDMI			19
+#define IRQ_MMP2_SSP3			20
+#define IRQ_MMP2_SSP4			21
+#define IRQ_MMP2_USB_HS1		22
+#define IRQ_MMP2_USB_HS2		23
+#define IRQ_MMP2_UART3			24
+#define IRQ_MMP2_UART1			27
+#define IRQ_MMP2_UART2			28
+#define IRQ_MMP2_MIPI_DSI		29
+#define IRQ_MMP2_CI2			30
+#define IRQ_MMP2_PMU_TIMER1		31
+#define IRQ_MMP2_PMU_TIMER2		32
+#define IRQ_MMP2_PMU_TIMER3		33
+#define IRQ_MMP2_USB_FS			34
+#define IRQ_MMP2_MISC_MUX		35
+#define IRQ_MMP2_WDT1			36
+#define IRQ_MMP2_NAND_DMA		37
+#define IRQ_MMP2_USIM			38
+#define IRQ_MMP2_MMC			39
+#define IRQ_MMP2_WTM			40
+#define IRQ_MMP2_LCD			41
+#define IRQ_MMP2_CI			42
+#define IRQ_MMP2_IRE			43
+#define IRQ_MMP2_USB_OTG		44
+#define IRQ_MMP2_NAND			45
+#define IRQ_MMP2_UART4			46
+#define IRQ_MMP2_DMA_FIQ		47
+#define IRQ_MMP2_DMA_RIQ		48
+#define IRQ_MMP2_GPIO			49
+#define IRQ_MMP2_SSP_MUX		51
+#define IRQ_MMP2_MMC2			52
+#define IRQ_MMP2_MMC3			53
+#define IRQ_MMP2_MMC4			54
+#define IRQ_MMP2_MIPI_HSI		55
+#define IRQ_MMP2_MSP			58
+#define IRQ_MMP2_MIPI_SLIM_DMA		59
+#define IRQ_MMP2_PJ4_FREQ_CHG		60
+#define IRQ_MMP2_MIPI_SLIM		62
+#define IRQ_MMP2_SM			63
+
+#define IRQ_MMP2_MUX_BASE		64
+
+/* secondary interrupt of INT #4 */
+#define IRQ_MMP2_PMIC_BASE		(IRQ_MMP2_MUX_BASE)
+#define IRQ_MMP2_CHARGER		(IRQ_MMP2_PMIC_BASE + 0)
+#define IRQ_MMP2_PMIC			(IRQ_MMP2_PMIC_BASE + 1)
+
+/* secondary interrupt of INT #5 */
+#define IRQ_MMP2_RTC_BASE		(IRQ_MMP2_PMIC_BASE + 2)
+#define IRQ_MMP2_RTC_ALARM		(IRQ_MMP2_RTC_BASE + 0)
+#define IRQ_MMP2_RTC			(IRQ_MMP2_RTC_BASE + 1)
+
+/* secondary interrupt of INT #17 */
+#define IRQ_MMP2_TWSI_BASE		(IRQ_MMP2_RTC_BASE + 2)
+#define IRQ_MMP2_TWSI2			(IRQ_MMP2_TWSI_BASE + 0)
+#define IRQ_MMP2_TWSI3			(IRQ_MMP2_TWSI_BASE + 1)
+#define IRQ_MMP2_TWSI4			(IRQ_MMP2_TWSI_BASE + 2)
+#define IRQ_MMP2_TWSI5			(IRQ_MMP2_TWSI_BASE + 3)
+#define IRQ_MMP2_TWSI6			(IRQ_MMP2_TWSI_BASE + 4)
+
+/* secondary interrupt of INT #35 */
+#define IRQ_MMP2_MISC_BASE		(IRQ_MMP2_TWSI_BASE + 5)
+#define IRQ_MMP2_PERF			(IRQ_MMP2_MISC_BASE + 0)
+#define IRQ_MMP2_L2_PA_ECC		(IRQ_MMP2_MISC_BASE + 1)
+#define IRQ_MMP2_L2_ECC			(IRQ_MMP2_MISC_BASE + 2)
+#define IRQ_MMP2_L2_UECC		(IRQ_MMP2_MISC_BASE + 3)
+#define IRQ_MMP2_DDR			(IRQ_MMP2_MISC_BASE + 4)
+#define IRQ_MMP2_FAB0_TIMEOUT		(IRQ_MMP2_MISC_BASE + 5)
+#define IRQ_MMP2_FAB1_TIMEOUT		(IRQ_MMP2_MISC_BASE + 6)
+#define IRQ_MMP2_FAB2_TIMEOUT		(IRQ_MMP2_MISC_BASE + 7)
+#define IRQ_MMP2_THERMAL		(IRQ_MMP2_MISC_BASE + 9)
+#define IRQ_MMP2_MAIN_PMU		(IRQ_MMP2_MISC_BASE + 10)
+#define IRQ_MMP2_WDT2			(IRQ_MMP2_MISC_BASE + 11)
+#define IRQ_MMP2_CORESIGHT		(IRQ_MMP2_MISC_BASE + 12)
+#define IRQ_MMP2_COMMTX			(IRQ_MMP2_MISC_BASE + 13)
+#define IRQ_MMP2_COMMRX			(IRQ_MMP2_MISC_BASE + 14)
+
+/* secondary interrupt of INT #51 */
+#define IRQ_MMP2_SSP_BASE		(IRQ_MMP2_MISC_BASE + 15)
+#define IRQ_MMP2_SSP1_SRDY		(IRQ_MMP2_SSP_BASE + 0)
+#define IRQ_MMP2_SSP3_SRDY		(IRQ_MMP2_SSP_BASE + 1)
+
+#define IRQ_MMP2_MUX_END		(IRQ_MMP2_SSP_BASE + 2)
+
+#define IRQ_GPIO_START			128
+#define IRQ_GPIO_NUM			192
 #define IRQ_GPIO(x)			(IRQ_GPIO_START + (x))
 
 #define NR_IRQS		(IRQ_GPIO_START + IRQ_GPIO_NUM)