[PATCH] m32r: Support M3A-2170(Mappi-III) platform

This patchset is for supporting a new m32r platform, M3A-2170(Mappi-III)
evaluation board.  An M32R chip multiprocessor is equipped on the board.
http://http://www.linux-m32r.org/eng/platform/platform.html

	* arch/m32r/Kconfig: Support Mappi-III platform.
	* arch/m32r/kernel/Makefile: ditto.
	* arch/m32r/kernel/io_mappi3.c: ditto.
	* arch/m32r/kernel/setup.c: ditto.
	* arch/m32r/kernel/setup_mappi3.c: ditto.
	* include/asm-m32r/m32102.h: ditto.
	* include/asm-m32r/m32r.h: ditto.
	* include/asm-m32r/mappi3/mappi3_pld.h: ditto.

	* include/asm-m32r/ide.h: CF support for Mappi-III.
	* arch/m32r/kernel/setup_mappi3.c: ditto.

	* arch/m32r/mappi3/defconfig.smp: A default config file for Mappi-III.
	* arch/m32r/mappi3/dot.gdbinit: A default .gdbinit file for Mappi-III.

	* arch/m32r/boot/compressed/m32r_sio.c: Modified for Mappi-III
	  - At boot time, m32r-g00ff bootloader makes MMU off for Mappi-III,
	    on the contrary it makes MMU on for Mappi-II.

	* arch/m32r/kernel/io_mappi2.c: Update comments.
	* arch/m32r/kernel/setup_mappi2.c: ditto.

Signed-off-by: Mamoru Sakugawa <sakugawa@linux-m32r.org>
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>

1 files changed, 224 insertions, 0 deletions

diff --git a/arch/m32r/mappi3/dot.gdbinit b/arch/m32r/mappi3/dot.gdbinit
new file mode 100644
index 00000000000..89c22184e13
--- /dev/null
+++ b/arch/m32r/mappi3/dot.gdbinit
@@ -0,0 +1,224 @@
+# .gdbinit file
+# $Id: dot.gdbinit,v 1.1 2005/04/11 02:21:08 sakugawa Exp $
+
+# setting
+set width 0d70
+set radix 0d16
+use_debug_dma
+
+# Initialize SDRAM controller for Mappi
+define sdram_init
+  # SDIR0
+  set *(unsigned long *)0x00ef6008 = 0x00000182
+  # SDIR1
+  set *(unsigned long *)0x00ef600c = 0x00000001
+  # Initialize wait
+  shell sleep 0.1
+  # MOD
+  set *(unsigned long *)0x00ef602c = 0x00000020
+  set *(unsigned long *)0x00ef604c = 0x00000020
+  # TR
+  set *(unsigned long *)0x00ef6028 = 0x00051502
+  set *(unsigned long *)0x00ef6048 = 0x00051502
+  # ADR
+  set *(unsigned long *)0x00ef6020 = 0x08000004
+  set *(unsigned long *)0x00ef6040 = 0x0c000004
+  # AutoRef On
+  set *(unsigned long *)0x00ef6004 = 0x00010517
+  # Access enable
+  set *(unsigned long *)0x00ef6024 = 0x00000001
+  set *(unsigned long *)0x00ef6044 = 0x00000001
+end
+
+# Initialize LAN controller for Mappi
+define lanc_init
+  # Set BSEL4
+  #set *(unsigned long *)0x00ef5004 = 0x0fff330f
+  #set *(unsigned long *)0x00ef5004 = 0x01113301
+
+#  set *(unsigned long *)0x00ef5004 = 0x02011101
+#  set *(unsigned long *)0x00ef5004 = 0x04441104
+end
+
+define clock_init
+  set *(unsigned long *)0x00ef4010 = 2
+  set *(unsigned long *)0x00ef4014 = 2
+  set *(unsigned long *)0x00ef4020 = 3
+  set *(unsigned long *)0x00ef4024 = 3
+  set *(unsigned long *)0x00ef4004 = 0x7
+#  shell sleep 0.1
+#  set *(unsigned long *)0x00ef4004 = 0x5
+  shell sleep 0.1
+  set *(unsigned long *)0x00ef4008 = 0x0200
+end
+
+define port_init
+  set $sfrbase = 0x00ef0000
+  set *(unsigned short *)0x00ef1060 = 0x5555
+  set *(unsigned short *)0x00ef1062 = 0x5555
+  set *(unsigned short *)0x00ef1064 = 0x5555
+  set *(unsigned short *)0x00ef1066 = 0x5555
+  set *(unsigned short *)0x00ef1068 = 0x5555
+  set *(unsigned short *)0x00ef106a = 0x0000
+  set *(unsigned short *)0x00ef106e = 0x5555
+  set *(unsigned short *)0x00ef1070 = 0x5555
+end
+
+# MMU enable
+define mmu_enable
+  set $evb=0x88000000
+  set *(unsigned long *)0xffff0024=1
+end
+
+# MMU disable
+define mmu_disable
+  set $evb=0
+  set *(unsigned long *)0xffff0024=0
+end
+
+# Show TLB entries
+define show_tlb_entries
+  set $i = 0
+  set $addr = $arg0
+  while ($i < 0d16 )
+    set $tlb_tag = *(unsigned long*)$addr
+    set $tlb_data = *(unsigned long*)($addr + 4)
+    printf " [%2d] 0x%08lx : 0x%08lx - 0x%08lx\n", $i, $addr, $tlb_tag, $tlb_data
+    set $i = $i + 1
+    set $addr = $addr + 8
+  end
+end
+define itlb
+  set $itlb=0xfe000000
+  show_tlb_entries $itlb
+end
+define dtlb
+  set $dtlb=0xfe000800
+  show_tlb_entries $dtlb
+end
+
+# Cache ON
+define set_cache_type
+  set $mctype = (void*)0xfffffff8
+# chaos
+# set *(unsigned long *)($mctype) = 0x0000c000
+# m32102 i-cache only
+  set *(unsigned long *)($mctype) = 0x00008000
+# m32102 d-cache only
+#  set *(unsigned long *)($mctype) = 0x00004000
+end
+define cache_on
+  set $param = (void*)0x08001000
+  set *(unsigned long *)($param) = 0x60ff6102
+end
+
+
+# Show current task structure
+define show_current
+  set $current = $spi & 0xffffe000
+  printf "$current=0x%08lX\n",$current
+  print *(struct task_struct *)$current
+end
+
+# Show user assigned task structure
+define show_task
+  set $task = $arg0 & 0xffffe000
+  printf "$task=0x%08lX\n",$task
+  print *(struct task_struct *)$task
+end
+document show_task
+  Show user assigned task structure
+  arg0 : task structure address
+end
+
+# Show M32R registers
+define show_regs
+  printf " R0[0x%08lX]   R1[0x%08lX]   R2[0x%08lX]   R3[0x%08lX]\n",$r0,$r1,$r2,$r3
+  printf " R4[0x%08lX]   R5[0x%08lX]   R6[0x%08lX]   R7[0x%08lX]\n",$r4,$r5,$r6,$r7
+  printf " R8[0x%08lX]   R9[0x%08lX]  R10[0x%08lX]  R11[0x%08lX]\n",$r8,$r9,$r10,$r11
+  printf "R12[0x%08lX]   FP[0x%08lX]   LR[0x%08lX]   SP[0x%08lX]\n",$r12,$fp,$lr,$sp
+  printf "PSW[0x%08lX]  CBR[0x%08lX]  SPI[0x%08lX]  SPU[0x%08lX]\n",$psw,$cbr,$spi,$spu
+  printf "BPC[0x%08lX]   PC[0x%08lX] ACCL[0x%08lX] ACCH[0x%08lX]\n",$bpc,$pc,$accl,$acch
+  printf "EVB[0x%08lX]\n",$evb
+
+  set $mests = *(unsigned long *)0xffff000c
+  set $mdeva = *(unsigned long *)0xffff0010
+  printf "MESTS[0x%08lX] MDEVA[0x%08lX]\n",$mests,$mdeva
+end
+
+
+# Setup all
+define setup
+  clock_init
+  shell sleep 0.1
+  port_init
+  sdram_init
+#  lanc_init
+#  dispc_init
+#  set $evb=0x08000000
+end
+
+# Load modules
+define load_modules
+  use_debug_dma
+  load
+#  load busybox.mot
+end
+
+# Set kernel parameters
+define set_kernel_parameters
+  set $param = (void*)0x08001000
+
+  ## MOUNT_ROOT_RDONLY
+  set {long}($param+0x00)=0
+  ## RAMDISK_FLAGS
+  #set {long}($param+0x04)=0
+  ## ORIG_ROOT_DEV
+  #set {long}($param+0x08)=0x00000100
+  ## LOADER_TYPE
+  #set {long}($param+0x0C)=0
+  ## INITRD_START
+  set {long}($param+0x10)=0x082a0000
+  ## INITRD_SIZE
+  set {long}($param+0x14)=0d6200000
+
+  # M32R_CPUCLK
+  set *(unsigned long *)($param + 0x0018) = 0d100000000
+  # M32R_BUSCLK
+  set *(unsigned long *)($param + 0x001c) = 0d50000000
+  # M32R_TIMER_DIVIDE
+  set *(unsigned long *)($param + 0x0020) = 0d128
+
+
+ set {char[0x200]}($param + 0x100) = "console=ttyS0,115200n8x root=/dev/nfsroot nfsroot=192.168.0.1:/project/m32r-linux/export/root.2.6_04 nfsaddrs=192.168.0.102:192.168.0.1:192.168.0.1:255.255.255.0:mappi: \0"
+
+
+end
+
+# Boot
+define boot
+  set_kernel_parameters
+  debug_chaos
+  set *(unsigned long *)0x00f00000=0x08002000
+  set $pc=0x08002000
+  set $fp=0
+  del b
+  si
+end
+
+# Restart
+define restart
+  sdireset
+  sdireset
+  setup
+  load_modules
+  boot
+end
+
+sdireset
+sdireset
+file vmlinux
+target m32rsdi
+
+restart
+boot