[PATCH] m32r: Support M32104UT target platform

This patch is for supporting a new target platform, Renesas M32104UT
evaluation board.

The M32104UT is an eval board based on an uT-Engine specification.  This board
has an MMU-less M32R family processor, M32104.
http://www-wa0.personal-media.co.jp/pmc/archive/te/te_m32104_e.pdf

This board is one of the most popular M32R platform, so we have ported
Linux/M32R to it.

Signed-off-by: Naoto Sugai <Sugai.Naoto@ak.MitsubishiElectric.co.jp>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

7 files changed, 222 insertions, 18 deletions

diff --git a/include/asm-m32r/assembler.h b/include/asm-m32r/assembler.h
index e1dff9d6baa..b7f4d8aaeb4 100644
--- a/include/asm-m32r/assembler.h
+++ b/include/asm-m32r/assembler.h
@@ -52,7 +52,7 @@
 	or3	\reg, \reg, #low(\x)
 	.endm
 
-#if !defined(CONFIG_CHIP_M32102)
+#if !(defined(CONFIG_CHIP_M32102) || defined(CONFIG_CHIP_M32104))
 #define STI(reg) STI_M reg
 	.macro STI_M reg
 	setpsw  #0x40	    ->	nop
@@ -64,7 +64,7 @@
 	clrpsw  #0x40	    ->	nop
 	; WORKAROUND: "-> nop" is a workaround for the M32700(TS1).
 	.endm
-#else	/* CONFIG_CHIP_M32102 */
+#else	/* CONFIG_CHIP_M32102 || CONFIG_CHIP_M32104 */
 #define STI(reg) STI_M reg
 	.macro STI_M reg
 	mvfc	\reg, psw
@@ -191,12 +191,12 @@
 	and  \reg, sp
 	.endm
 
-#if !defined(CONFIG_CHIP_M32102)
+#if !(defined(CONFIG_CHIP_M32102) || defined(CONFIG_CHIP_M32104))
 	.macro	SWITCH_TO_KERNEL_STACK
 	; switch to kernel stack (spi)
 	clrpsw	#0x80	    ->	nop
 	.endm
-#else	/* CONFIG_CHIP_M32102 */
+#else	/* CONFIG_CHIP_M32102 || CONFIG_CHIP_M32104 */
 	.macro	SWITCH_TO_KERNEL_STACK
 	push	r0		; save r0 for working
 	mvfc	r0, psw
@@ -218,7 +218,7 @@
 	.fillinsn
 2:
 	.endm
-#endif	/* CONFIG_CHIP_M32102 */
+#endif	/* CONFIG_CHIP_M32102 || CONFIG_CHIP_M32104 */
 
 #endif	/* __ASSEMBLY__ */
 
diff --git a/include/asm-m32r/cacheflush.h b/include/asm-m32r/cacheflush.h
index 46fc4c32510..e57427b6e24 100644
--- a/include/asm-m32r/cacheflush.h
+++ b/include/asm-m32r/cacheflush.h
@@ -7,7 +7,7 @@
 extern void _flush_cache_all(void);
 extern void _flush_cache_copyback_all(void);
 
-#if defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_OPSP)
+#if defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_OPSP) || defined(CONFIG_CHIP_M32104)
 #define flush_cache_all()			do { } while (0)
 #define flush_cache_mm(mm)			do { } while (0)
 #define flush_cache_range(vma, start, end)	do { } while (0)
diff --git a/include/asm-m32r/irq.h b/include/asm-m32r/irq.h
index 8ed77968ecb..ca943954572 100644
--- a/include/asm-m32r/irq.h
+++ b/include/asm-m32r/irq.h
@@ -65,6 +65,22 @@
 #define NR_IRQS \
 	(OPSPUT_NUM_CPU_IRQ + OPSPUT_NUM_PLD_IRQ \
 	+ OPSPUT_NUM_LCD_PLD_IRQ + OPSPUT_NUM_LAN_PLD_IRQ)
+
+#elif defined(CONFIG_PLAT_M32104UT)
+/*
+ * IRQ definitions for M32104UT
+ *  M32104 Chip: 64 interrupts
+ *  ICU of M32104UT-on-board PLD: 32 interrupts cascaded to INT1# chip pin
+ */
+#define	M32104UT_NUM_CPU_IRQ	(64)
+#define M32104UT_NUM_PLD_IRQ	(32)
+#define M32104UT_IRQ_BASE	0
+#define M32104UT_CPU_IRQ_BASE	M32104UT_IRQ_BASE
+#define M32104UT_PLD_IRQ_BASE	(M32104UT_CPU_IRQ_BASE + M32104UT_NUM_CPU_IRQ)
+
+#define NR_IRQS	\
+    (M32104UT_NUM_CPU_IRQ + M32104UT_NUM_PLD_IRQ)
+
 #else
 #define NR_IRQS	64
 #endif
diff --git a/include/asm-m32r/m32102.h b/include/asm-m32r/m32102.h
index cb98101f4f6..0bd0a3f1662 100644
--- a/include/asm-m32r/m32102.h
+++ b/include/asm-m32r/m32102.h
@@ -11,7 +11,11 @@
 /*======================================================================*
  * Special Function Register
  *======================================================================*/
+#if !defined(CONFIG_CHIP_M32104)
 #define M32R_SFR_OFFSET  (0x00E00000)  /* 0x00E00000-0x00EFFFFF 1[MB] */
+#else
+#define M32R_SFR_OFFSET  (0x00700000)  /* 0x00700000-0x007FFFFF 1[MB] */
+#endif
 
 /*
  * Clock and Power Management registers.
@@ -100,7 +104,7 @@
 #define M32R_MFT5RLD_PORTL     (0x0C+M32R_MFT5_OFFSET)  /* MFT4 reload */
 #define M32R_MFT5CMPRLD_PORTL  (0x10+M32R_MFT5_OFFSET)  /* MFT4 compare reload */
 
-#ifdef CONFIG_CHIP_M32700
+#if defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_M32104)
 #define M32R_MFTCR_MFT0MSK  (1UL<<31)  /* b0 */
 #define M32R_MFTCR_MFT1MSK  (1UL<<30)  /* b1 */
 #define M32R_MFTCR_MFT2MSK  (1UL<<29)  /* b2 */
@@ -113,7 +117,7 @@
 #define M32R_MFTCR_MFT3EN   (1UL<<20)  /* b11 */
 #define M32R_MFTCR_MFT4EN   (1UL<<19)  /* b12 */
 #define M32R_MFTCR_MFT5EN   (1UL<<18)  /* b13 */
-#else	/* not CONFIG_CHIP_M32700 */
+#else	/* not CONFIG_CHIP_M32700 && not CONFIG_CHIP_M32104 */
 #define M32R_MFTCR_MFT0MSK  (1UL<<15)  /* b16 */
 #define M32R_MFTCR_MFT1MSK  (1UL<<14)  /* b17 */
 #define M32R_MFTCR_MFT2MSK  (1UL<<13)  /* b18 */
@@ -126,7 +130,7 @@
 #define M32R_MFTCR_MFT3EN   (1UL<<4)   /* b27 */
 #define M32R_MFTCR_MFT4EN   (1UL<<3)   /* b28 */
 #define M32R_MFTCR_MFT5EN   (1UL<<2)   /* b29 */
-#endif	/* not CONFIG_CHIP_M32700 */
+#endif	/* not CONFIG_CHIP_M32700 && not CONFIG_CHIP_M32104 */
 
 #define M32R_MFTMOD_CC_MASK    (1UL<<15)  /* b16 */
 #define M32R_MFTMOD_TCCR       (1UL<<13)  /* b18 */
@@ -241,8 +245,24 @@
 #define M32R_IRQ_MFT1    (17)  /* MFT1 */
 #define M32R_IRQ_MFT2    (18)  /* MFT2 */
 #define M32R_IRQ_MFT3    (19)  /* MFT3 */
-#define M32R_IRQ_MFT4    (20)  /* MFT4 */
-#define M32R_IRQ_MFT5    (21)  /* MFT5 */
+#ifdef CONFIG_CHIP_M32104
+#define M32R_IRQ_MFTX0   (24)  /* MFTX0 */
+#define M32R_IRQ_MFTX1   (25)  /* MFTX1 */
+#define M32R_IRQ_DMA0    (32)  /* DMA0 */
+#define M32R_IRQ_DMA1    (33)  /* DMA1 */
+#define M32R_IRQ_DMA2    (34)  /* DMA2 */
+#define M32R_IRQ_DMA3    (35)  /* DMA3 */
+#define M32R_IRQ_SIO0_R  (40)  /* SIO0 send    */
+#define M32R_IRQ_SIO0_S  (41)  /* SIO0 receive */
+#define M32R_IRQ_SIO1_R  (42)  /* SIO1 send    */
+#define M32R_IRQ_SIO1_S  (43)  /* SIO1 receive */
+#define M32R_IRQ_SIO2_R  (44)  /* SIO2 send    */
+#define M32R_IRQ_SIO2_S  (45)  /* SIO2 receive */
+#define M32R_IRQ_SIO3_R  (46)  /* SIO3 send    */
+#define M32R_IRQ_SIO3_S  (47)  /* SIO3 receive */
+#define M32R_IRQ_ADC     (56)  /* ADC */
+#define M32R_IRQ_PC      (57)  /* PC */
+#else /* ! M32104 */
 #define M32R_IRQ_DMA0    (32)  /* DMA0 */
 #define M32R_IRQ_DMA1    (33)  /* DMA1 */
 #define M32R_IRQ_SIO0_R  (48)  /* SIO0 send    */
@@ -255,6 +275,7 @@
 #define M32R_IRQ_SIO3_S  (55)  /* SIO3 receive */
 #define M32R_IRQ_SIO4_R  (56)  /* SIO4 send    */
 #define M32R_IRQ_SIO4_S  (57)  /* SIO4 receive */
+#endif /* ! M32104 */
 
 #ifdef CONFIG_SMP
 #define M32R_IRQ_IPI0    (56)
diff --git a/include/asm-m32r/m32104ut/m32104ut_pld.h b/include/asm-m32r/m32104ut/m32104ut_pld.h
new file mode 100644
index 00000000000..a4eac20553d
--- /dev/null
+++ b/include/asm-m32r/m32104ut/m32104ut_pld.h
@@ -0,0 +1,163 @@
+/*
+ * include/asm/m32104ut/m32104ut_pld.h
+ *
+ * Definitions for Programable Logic Device(PLD) on M32104UT board.
+ * Based on m32700ut_pld.h
+ *
+ * Copyright (c) 2002	Takeo Takahashi
+ * Copyright (c) 2005	Naoto Sugai
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file "COPYING" in the main directory of
+ * this archive for more details.
+ */
+
+#ifndef _M32104UT_M32104UT_PLD_H
+#define _M32104UT_M32104UT_PLD_H
+
+#include <linux/config.h>
+
+#if defined(CONFIG_PLAT_M32104UT)
+#define PLD_PLAT_BASE		0x02c00000
+#else
+#error "no platform configuration"
+#endif
+
+#ifndef __ASSEMBLY__
+/*
+ * C functions use non-cache address.
+ */
+#define PLD_BASE		(PLD_PLAT_BASE /* + NONCACHE_OFFSET */)
+#define __reg8			(volatile unsigned char *)
+#define __reg16			(volatile unsigned short *)
+#define __reg32			(volatile unsigned int *)
+#else
+#define PLD_BASE		(PLD_PLAT_BASE + NONCACHE_OFFSET)
+#define __reg8
+#define __reg16
+#define __reg32
+#endif	/* __ASSEMBLY__ */
+
+/* CFC */
+#define	PLD_CFRSTCR		__reg16(PLD_BASE + 0x0000)
+#define PLD_CFSTS		__reg16(PLD_BASE + 0x0002)
+#define PLD_CFIMASK		__reg16(PLD_BASE + 0x0004)
+#define PLD_CFBUFCR		__reg16(PLD_BASE + 0x0006)
+
+/* MMC */
+#define PLD_MMCCR		__reg16(PLD_BASE + 0x4000)
+#define PLD_MMCMOD		__reg16(PLD_BASE + 0x4002)
+#define PLD_MMCSTS		__reg16(PLD_BASE + 0x4006)
+#define PLD_MMCBAUR		__reg16(PLD_BASE + 0x400a)
+#define PLD_MMCCMDBCUT		__reg16(PLD_BASE + 0x400c)
+#define PLD_MMCCDTBCUT		__reg16(PLD_BASE + 0x400e)
+#define PLD_MMCDET		__reg16(PLD_BASE + 0x4010)
+#define PLD_MMCWP		__reg16(PLD_BASE + 0x4012)
+#define PLD_MMCWDATA		__reg16(PLD_BASE + 0x5000)
+#define PLD_MMCRDATA		__reg16(PLD_BASE + 0x6000)
+#define PLD_MMCCMDDATA		__reg16(PLD_BASE + 0x7000)
+#define PLD_MMCRSPDATA		__reg16(PLD_BASE + 0x7006)
+
+/* ICU
+ *  ICUISTS:	status register
+ *  ICUIREQ0: 	request register
+ *  ICUIREQ1: 	request register
+ *  ICUCR3:	control register for CFIREQ# interrupt
+ *  ICUCR4:	control register for CFC Card insert interrupt
+ *  ICUCR5:	control register for CFC Card eject interrupt
+ *  ICUCR6:	control register for external interrupt
+ *  ICUCR11:	control register for MMC Card insert/eject interrupt
+ *  ICUCR13:	control register for SC error interrupt
+ *  ICUCR14:	control register for SC receive interrupt
+ *  ICUCR15:	control register for SC send interrupt
+ */
+
+#define PLD_IRQ_INT0		(M32104UT_PLD_IRQ_BASE + 0)	/* None */
+#define PLD_IRQ_CFIREQ		(M32104UT_PLD_IRQ_BASE + 3)	/* CF IREQ */
+#define PLD_IRQ_CFC_INSERT	(M32104UT_PLD_IRQ_BASE + 4)	/* CF Insert */
+#define PLD_IRQ_CFC_EJECT	(M32104UT_PLD_IRQ_BASE + 5)	/* CF Eject */
+#define PLD_IRQ_EXINT		(M32104UT_PLD_IRQ_BASE + 6)	/* EXINT */
+#define PLD_IRQ_MMCCARD		(M32104UT_PLD_IRQ_BASE + 11)	/* MMC Insert/Eject */
+#define PLD_IRQ_SC_ERROR	(M32104UT_PLD_IRQ_BASE + 13)	/* SC error */
+#define PLD_IRQ_SC_RCV		(M32104UT_PLD_IRQ_BASE + 14)	/* SC receive */
+#define PLD_IRQ_SC_SND		(M32104UT_PLD_IRQ_BASE + 15)	/* SC send */
+
+#define PLD_ICUISTS		__reg16(PLD_BASE + 0x8002)
+#define PLD_ICUISTS_VECB_MASK	(0xf000)
+#define PLD_ICUISTS_VECB(x)	((x) & PLD_ICUISTS_VECB_MASK)
+#define PLD_ICUISTS_ISN_MASK	(0x07c0)
+#define PLD_ICUISTS_ISN(x)	((x) & PLD_ICUISTS_ISN_MASK)
+#define PLD_ICUCR3		__reg16(PLD_BASE + 0x8104)
+#define PLD_ICUCR4		__reg16(PLD_BASE + 0x8106)
+#define PLD_ICUCR5		__reg16(PLD_BASE + 0x8108)
+#define PLD_ICUCR6		__reg16(PLD_BASE + 0x810a)
+#define PLD_ICUCR11		__reg16(PLD_BASE + 0x8114)
+#define PLD_ICUCR13		__reg16(PLD_BASE + 0x8118)
+#define PLD_ICUCR14		__reg16(PLD_BASE + 0x811a)
+#define PLD_ICUCR15		__reg16(PLD_BASE + 0x811c)
+#define PLD_ICUCR_IEN		(0x1000)
+#define PLD_ICUCR_IREQ		(0x0100)
+#define PLD_ICUCR_ISMOD00	(0x0000)	/* Low edge */
+#define PLD_ICUCR_ISMOD01	(0x0010)	/* Low level */
+#define PLD_ICUCR_ISMOD02	(0x0020)	/* High edge */
+#define PLD_ICUCR_ISMOD03	(0x0030)	/* High level */
+#define PLD_ICUCR_ILEVEL0	(0x0000)
+#define PLD_ICUCR_ILEVEL1	(0x0001)
+#define PLD_ICUCR_ILEVEL2	(0x0002)
+#define PLD_ICUCR_ILEVEL3	(0x0003)
+#define PLD_ICUCR_ILEVEL4	(0x0004)
+#define PLD_ICUCR_ILEVEL5	(0x0005)
+#define PLD_ICUCR_ILEVEL6	(0x0006)
+#define PLD_ICUCR_ILEVEL7	(0x0007)
+
+/* Power Control of MMC and CF */
+#define PLD_CPCR		__reg16(PLD_BASE + 0x14000)
+#define PLD_CPCR_CDP		0x0001
+
+/* LED Control
+ *
+ * 1: DIP swich side
+ * 2: Reset switch side
+ */
+#define PLD_IOLEDCR		__reg16(PLD_BASE + 0x14002)
+#define PLD_IOLED_1_ON		0x001
+#define PLD_IOLED_1_OFF		0x000
+#define PLD_IOLED_2_ON		0x002
+#define PLD_IOLED_2_OFF		0x000
+
+/* DIP Switch
+ *  0: Write-protect of Flash Memory (0:protected, 1:non-protected)
+ *  1: -
+ *  2: -
+ *  3: -
+ */
+#define PLD_IOSWSTS		__reg16(PLD_BASE + 0x14004)
+#define	PLD_IOSWSTS_IOSW2	0x0200
+#define	PLD_IOSWSTS_IOSW1	0x0100
+#define	PLD_IOSWSTS_IOWP0	0x0001
+
+/* CRC */
+#define PLD_CRC7DATA		__reg16(PLD_BASE + 0x18000)
+#define PLD_CRC7INDATA		__reg16(PLD_BASE + 0x18002)
+#define PLD_CRC16DATA		__reg16(PLD_BASE + 0x18004)
+#define PLD_CRC16INDATA		__reg16(PLD_BASE + 0x18006)
+#define PLD_CRC16ADATA		__reg16(PLD_BASE + 0x18008)
+#define PLD_CRC16AINDATA	__reg16(PLD_BASE + 0x1800a)
+
+/* RTC */
+#define PLD_RTCCR		__reg16(PLD_BASE + 0x1c000)
+#define PLD_RTCBAUR		__reg16(PLD_BASE + 0x1c002)
+#define PLD_RTCWRDATA		__reg16(PLD_BASE + 0x1c004)
+#define PLD_RTCRDDATA		__reg16(PLD_BASE + 0x1c006)
+#define PLD_RTCRSTODT		__reg16(PLD_BASE + 0x1c008)
+
+/* SIM Card */
+#define PLD_SCCR		__reg16(PLD_BASE + 0x38000)
+#define PLD_SCMOD		__reg16(PLD_BASE + 0x38004)
+#define PLD_SCSTS		__reg16(PLD_BASE + 0x38006)
+#define PLD_SCINTCR		__reg16(PLD_BASE + 0x38008)
+#define PLD_SCBAUR		__reg16(PLD_BASE + 0x3800a)
+#define PLD_SCTXB		__reg16(PLD_BASE + 0x3800c)
+#define PLD_SCRXB		__reg16(PLD_BASE + 0x3800e)
+
+#endif	/* _M32104UT_M32104UT_PLD_H */
diff --git a/include/asm-m32r/m32r.h b/include/asm-m32r/m32r.h
index ec142be0086..f9bb48ac9d7 100644
--- a/include/asm-m32r/m32r.h
+++ b/include/asm-m32r/m32r.h
@@ -14,7 +14,7 @@
 #include <asm/m32r_mp_fpga.h>
 #elif defined(CONFIG_CHIP_VDEC2) || defined(CONFIG_CHIP_XNUX2) \
 	|| defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_M32102) \
-        || defined(CONFIG_CHIP_OPSP)
+        || defined(CONFIG_CHIP_OPSP) || defined(CONFIG_CHIP_M32104)
 #include <asm/m32102.h>
 #endif
 
@@ -43,6 +43,10 @@
 #include <asm/m32700ut/m32700ut_pld.h>
 #endif
 
+#if defined(CONFIG_PLAT_M32104UT)
+#include <asm/m32104ut/m32104ut_pld.h>
+#endif  /* CONFIG_PLAT_M32104 */
+
 /*
  * M32R Register
  */
diff --git a/include/asm-m32r/system.h b/include/asm-m32r/system.h
index 5eee832b73a..dcf619a0a0b 100644
--- a/include/asm-m32r/system.h
+++ b/include/asm-m32r/system.h
@@ -69,12 +69,12 @@
 } while(0)
 
 /* Interrupt Control */
-#if !defined(CONFIG_CHIP_M32102)
+#if !defined(CONFIG_CHIP_M32102) && !defined(CONFIG_CHIP_M32104)
 #define local_irq_enable() \
 	__asm__ __volatile__ ("setpsw #0x40 -> nop": : :"memory")
 #define local_irq_disable() \
 	__asm__ __volatile__ ("clrpsw #0x40 -> nop": : :"memory")
-#else	/* CONFIG_CHIP_M32102 */
+#else	/* CONFIG_CHIP_M32102 || CONFIG_CHIP_M32104 */
 static inline void local_irq_enable(void)
 {
 	unsigned long tmpreg;
@@ -96,7 +96,7 @@ static inline void local_irq_disable(void)
 		"mvtc	%0, psw	\n\t"
 	: "=&r" (tmpreg0), "=&r" (tmpreg1) : : "cbit", "memory");
 }
-#endif	/* CONFIG_CHIP_M32102 */
+#endif	/* CONFIG_CHIP_M32102 || CONFIG_CHIP_M32104 */
 
 #define local_save_flags(x) \
 	__asm__ __volatile__("mvfc %0,psw" : "=r"(x) : /* no input */)
@@ -105,13 +105,13 @@ static inline void local_irq_disable(void)
 	__asm__ __volatile__("mvtc %0,psw" : /* no outputs */ \
 		: "r" (x) : "cbit", "memory")
 
-#if !defined(CONFIG_CHIP_M32102)
+#if !(defined(CONFIG_CHIP_M32102) || defined(CONFIG_CHIP_M32104))
 #define local_irq_save(x)				\
 	__asm__ __volatile__(				\
   		"mvfc	%0, psw;		\n\t"	\
 	  	"clrpsw	#0x40 -> nop;		\n\t"	\
   		: "=r" (x) : /* no input */ : "memory")
-#else	/* CONFIG_CHIP_M32102 */
+#else	/* CONFIG_CHIP_M32102 || CONFIG_CHIP_M32104 */
 #define local_irq_save(x) 				\
 	({						\
 		unsigned long tmpreg;			\
@@ -124,7 +124,7 @@ static inline void local_irq_disable(void)
 			: "=r" (x), "=&r" (tmpreg)	\
 			: : "cbit", "memory");		\
 	})
-#endif	/* CONFIG_CHIP_M32102 */
+#endif	/* CONFIG_CHIP_M32102 || CONFIG_CHIP_M32104 */
 
 #define irqs_disabled()					\
 	({						\