[PATCH] v850 updates

(Miles Bader)

arch/v850/Kconfig

@@ -124,9 +124,11 @@ menu "Processor type and features"
 	  depends RTE_CB_MA1 || RTE_CB_NB85E
 	  default y
 
-   # Currently, we only support RTE-CB boards using the Multi debugger
    config RTE_CB_MULTI
    	  bool
+	  # RTE_CB_NB85E can either have multi ROM support or not, but
+	  # other platforms (currently only RTE_CB_MA1) require it.
+	  prompt "Multi monitor ROM support" if RTE_CB_NB85E
 	  depends RTE_CB
 	  default y
 

arch/v850/kernel/Makefile

 #
 # arch/v850/kernel/Makefile
 #
-#  Copyright (C) 2001,02  NEC Corporation
-#  Copyright (C) 2001,02  Miles Bader <miles@gnu.org>
+#  Copyright (C) 2001,02,03  NEC Electronics Corporation
+#  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
 #
 # 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
@@ -15,10 +15,14 @@ obj-y += intv.o entry.o process.o syscalls.o time.o semaphore.o setup.o \
 	 signal.o irq.o mach.o ptrace.o bug.o
 obj-$(CONFIG_MODULES)		+= module.o v850_ksyms.o
 # chip-specific code
-obj-$(CONFIG_V850E_MA1)		+= ma.o	nb85e_utils.o nb85e_timer_d.o
 obj-$(CONFIG_V850E_NB85E)	+= nb85e_intc.o
-obj-$(CONFIG_V850E2_ANNA)	+= anna.o nb85e_intc.o nb85e_utils.o nb85e_timer_d.o
-obj-$(CONFIG_V850E_AS85EP1)	+= as85ep1.o nb85e_intc.o nb85e_utils.o nb85e_timer_d.o
+obj-$(CONFIG_V850E_MA1)		+= ma.o nb85e_utils.o nb85e_timer_d.o
+obj-$(CONFIG_V850E_TEG)		+= teg.o nb85e_utils.o nb85e_cache.o \
+				   nb85e_timer_d.o
+obj-$(CONFIG_V850E2_ANNA)	+= anna.o nb85e_intc.o nb85e_utils.o \
+				   nb85e_timer_d.o
+obj-$(CONFIG_V850E_AS85EP1)	+= as85ep1.o nb85e_intc.o nb85e_utils.o \
+				   nb85e_timer_d.o
 # platform-specific code
 obj-$(CONFIG_V850E_SIM)		+= sim.o simcons.o
 obj-$(CONFIG_V850E2_SIM85E2C)	+= sim85e2c.o nb85e_intc.o memcons.o

arch/v850/kernel/entry.S

@@ -231,7 +231,7 @@
 	st.b	r19, KM;						      \
 	GET_CURRENT_TASK(CURRENT_TASK);	/* Fetch the current task pointer. */ \
 	/* Save away the syscall number.  */				      \
-	sst.w	syscall_num, PTO+PT_SYSCALL[ep]
+	sst.w	syscall_num, PTO+PT_CUR_SYSCALL[ep]
 
 
 /* Save register state not normally saved by PUSH_STATE for TYPE.  */
@@ -438,11 +438,11 @@
    LP register should point to the location where the called function
    should return.  [note that MAKE_SYS_CALL uses label 1]  */
 #define MAKE_SYS_CALL							      \
-	/* See if the system call number is valid.  */			      \
-	addi	-NR_syscalls, r12, r0;					      \
-	bnh	1f;							      \
 	/* Figure out which function to use for this system call.  */	      \
 	shl	2, r12;							      \
+	/* See if the system call number is valid.  */			      \
+	addi	lo(CSYM(sys_call_table) - sys_call_table_end), r12, r0;	      \
+	bnh	1f;							      \
 	mov	hilo(CSYM(sys_call_table)), r19;			      \
 	add	r19, r12;						      \
 	ld.w	0[r12], r12;						      \
@@ -511,10 +511,8 @@ END(ret_from_trap)
    (copy_thread makes ret_from_fork the return address in each new thread's
    saved context).  */
 C_ENTRY(ret_from_fork):
-#if defined(CONFIG_SMP) || defined(CONFIG_PREEMPT)
 	mov	r10, r6			// switch_thread returns the prev task.
 	jarl	CSYM(schedule_tail), lp	// ...which is schedule_tail's arg
-#endif
 	mov	r0, r10			// Child's fork call should return 0.
 	br	ret_from_trap		// Do normal trap return.
 C_END(ret_from_fork)
@@ -982,8 +980,5 @@ C_DATA(sys_call_table):
 	.long CSYM(sys_pivot_root)	// 200
 	.long CSYM(sys_gettid)
 	.long CSYM(sys_tkill)
-	.long CSYM(sys_ni_syscall)	// sys_mincore
-	.long CSYM(sys_ni_syscall)	// sys_madvise
-
-	.space (NR_syscalls-205)*4
+sys_call_table_end:
 C_END(sys_call_table)

arch/v850/kernel/gbus_int.c

@@ -26,7 +26,9 @@
 /* For each GINT interrupt, how many GBUS interrupts are using it.  */
 static unsigned gint_num_active_irqs[NUM_GINTS] = { 0 };
 
-/* A table of GINTn interrupts we actually use.  */
+/* A table of GINTn interrupts we actually use.
+   Note that we don't use GINT0 because all the boards we support treat it
+   specially.  */
 struct used_gint {
 	unsigned gint;
 	unsigned priority;

arch/v850/kernel/nb85e_cache.c

+/*
+ * arch/v850/kernel/nb85e_cache.c -- Cache control for NB85E_CACHE212 and
+ * 	NB85E_CACHE213 cache memories
+ *
+ *  Copyright (C) 2003  NEC Electronics Corporation
+ *  Copyright (C) 2003  Miles Bader <miles@gnu.org>
+ *
+ * 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.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ */
+
+#include <asm/entry.h>
+#include <asm/nb85e_cache.h>
+
+#define WAIT_UNTIL_CLEAR(value) while (value) {}
+
+/* Set caching params via the BHC and DCC registers.  */
+void nb85e_cache_enable (u16 bhc, u16 dcc)
+{
+	unsigned long *r0_ram = (unsigned long *)R0_RAM_ADDR;
+	register u16 bhc_val asm ("r6") = bhc;
+
+	/* Configure data-cache.  */
+	NB85E_CACHE_DCC = dcc;
+
+	/* Configure caching for various memory regions by writing the BHC
+	   register.  The documentation says that an instruction _cannot_
+	   enable/disable caching for the memory region in which the
+	   instruction itself exists; to work around this, we store
+	   appropriate instructions into the on-chip RAM area (which is never
+	   cached), and briefly jump there to do the work.  */
+	r0_ram[0] = 0xf0720760;	/* st.h r0, 0xfffff072[r0] */
+	r0_ram[1] = 0xf06a3760;	/* st.h r6, 0xfffff06a[r0] */
+	r0_ram[2] = 0x5640006b;	/* jmp [r11] */
+	asm ("mov hilo(1f), r11; jmp [%1]; 1:;"
+	     :: "r" (bhc_val), "r" (R0_RAM_ADDR) : "r11");
+}
+
+static void clear_icache (void)
+{
+	/* 1. Read the instruction cache control register (ICC) and confirm
+	      that bits 0 and 1 (TCLR0, TCLR1) are all cleared.  */
+	WAIT_UNTIL_CLEAR (NB85E_CACHE_ICC & 0x3);
+
+	/* 2. Read the ICC register and confirm that bit 12 (LOCK0) is
+  	      cleared.  Bit 13 of the ICC register is always cleared.  */
+	WAIT_UNTIL_CLEAR (NB85E_CACHE_ICC & 0x1000);
+
+	/* 3. Set the TCLR0 and TCLR1 bits of the ICC register as follows,
+	      when clearing way 0 and way 1 at the same time:
+	        (a) Set the TCLR0 and TCLR1 bits.
+		(b) Read the TCLR0 and TCLR1 bits to confirm that these bits
+		    are cleared.
+		(c) Perform (a) and (b) above again.  */
+	NB85E_CACHE_ICC |= 0x3;
+	WAIT_UNTIL_CLEAR (NB85E_CACHE_ICC & 0x3);
+	/* Do it again.  */
+	NB85E_CACHE_ICC |= 0x3;
+	WAIT_UNTIL_CLEAR (NB85E_CACHE_ICC & 0x3);
+}
+
+/* Flush or clear (or both) the data cache, depending on the value of FLAGS;
+   the procedure is the same for both, just the control bits used differ (and
+   both may be performed simultaneously).  */
+static void dcache_op (unsigned short flags)
+{
+	/* 1. Read the data cache control register (DCC) and confirm that bits
+	      0, 1, 4, and 5 (DC00, DC01, DC04, DC05) are all cleared.  */
+	WAIT_UNTIL_CLEAR (NB85E_CACHE_DCC & 0x33);
+
+	/* 2. Clear DCC register bit 12 (DC12), bit 13 (DC13), or both
+	      depending on the way for which tags are to be cleared.  */
+	NB85E_CACHE_DCC &= ~0xC000;
+
+	/* 3. Set DCC register bit 0 (DC00), bit 1 (DC01) or both depending on
+	      the way for which tags are to be cleared.
+	      ...
+	      Set DCC register bit 4 (DC04), bit 5 (DC05), or both depending
+	      on the way to be data flushed.  */
+	NB85E_CACHE_DCC |= flags;
+
+	/* 4. Read DCC register bit DC00, DC01 [DC04, DC05], or both depending
+	      on the way for which tags were cleared [flushed] and confirm
+	      that that bit is cleared.  */
+	WAIT_UNTIL_CLEAR (NB85E_CACHE_DCC & flags);
+}
+
+/* Flushes the contents of the dcache to memory.  */
+static inline void flush_dcache (void)
+{
+	/* We only need to do something if in write-back mode.  */
+	if (NB85E_CACHE_DCC & 0x0400)
+		dcache_op (0x30);
+}
+
+/* Flushes the contents of the dcache to memory, and then clears it.  */
+static inline void clear_dcache (void)
+{
+	/* We only need to do something if the dcache is enabled.  */
+	if (NB85E_CACHE_DCC & 0x0C00)
+		dcache_op (0x33);
+}
+
+/* Clears the dcache without flushing to memory first.  */
+static inline void clear_dcache_no_flush (void)
+{
+	/* We only need to do something if the dcache is enabled.  */
+	if (NB85E_CACHE_DCC & 0x0C00)
+		dcache_op (0x3);
+}
+
+static inline void cache_exec_after_store (void)
+{
+	flush_dcache ();
+	clear_icache ();
+}
+
+
+/* Exported functions.  */
+
+void inline nb85e_cache_flush_all (void)
+{
+	clear_icache ();
+	clear_dcache ();
+}
+
+void nb85e_cache_flush_mm (struct mm_struct *mm)
+{
+	/* nothing */
+}
+
+void nb85e_cache_flush_range (struct mm_struct *mm,
+			      unsigned long start, unsigned long end)
+{
+	/* nothing */
+}
+
+void nb85e_cache_flush_page (struct vm_area_struct *vma,
+			     unsigned long page_addr)
+{
+	/* nothing */
+}
+
+void nb85e_cache_flush_dcache_page (struct page *page)
+{
+	/* nothing */
+}
+
+void nb85e_cache_flush_icache (void)
+{
+	cache_exec_after_store ();
+}
+
+void nb85e_cache_flush_icache_range (unsigned long start, unsigned long end)
+{
+	cache_exec_after_store ();
+}
+
+void nb85e_cache_flush_icache_page (struct vm_area_struct *vma,
+				    struct page *page)
+{
+	cache_exec_after_store ();
+}
+
+void nb85e_cache_flush_icache_user_range (struct vm_area_struct *vma,
+					  struct page *page,
+					  unsigned long adr, int len)
+{
+	cache_exec_after_store ();
+}
+
+void nb85e_cache_flush_sigtramp (unsigned long addr)
+{
+	cache_exec_after_store ();
+}

arch/v850/kernel/process.c

@@ -226,7 +226,7 @@ unsigned long get_wchan (struct task_struct *p)
 	if (!p || p == current || p->state == TASK_RUNNING)
 		return 0;
 
-	pc = thread_saved_pc (&p->thread);
+	pc = thread_saved_pc (p);
 
 	/* This quite disgusting function walks up the stack, following
 	   saved return address, until it something that's out of bounds

arch/v850/kernel/rte_cb.c

 /*
  * include/asm-v850/rte_cb.c -- Midas lab RTE-CB series of evaluation boards
  *
- *  Copyright (C) 2001,02  NEC Corporation
- *  Copyright (C) 2001,02  Miles Bader <miles@gnu.org>
+ *  Copyright (C) 2001,02,03  NEC Electronics Corporation
+ *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
  *
  * 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
@@ -32,28 +32,11 @@ extern void multi_init (void);
 #endif
 
 
-#ifdef CONFIG_ROM_KERNEL
-/* Initialization for kernel in ROM.  */
-static inline rom_kernel_init (void)
-{
-	/* If the kernel is in ROM, we have to copy any initialized data
-	   from ROM into RAM.  */
-	extern unsigned long _data_load_start, _sdata, _edata;
-	register unsigned long *src = &_data_load_start;
-	register unsigned long *dst = &_sdata, *end = &_edata;
-
-	while (dst != end)
-		*dst++ = *src++;
-}
-#endif /* CONFIG_ROM_KERNEL */
-
-void __init mach_early_init (void)
+void __init rte_cb_early_init (void)
 {
 	nb85e_intc_disable_irqs ();
 
-#if defined (CONFIG_ROM_KERNEL)
-	rom_kernel_init ();
-#elif defined (CONFIG_RTE_CB_MULTI)
+#ifdef CONFIG_RTE_CB_MULTI
 	multi_init ();
 #endif
 }

arch/v850/kernel/rte_cb_multi.c

@@ -16,22 +16,55 @@
 
 #include <asm/machdep.h>
 
+#define IRQ_ADDR(irq) (0x80 + (irq) * 0x10)
+
 /* A table of which interrupt vectors to install, since blindly
    installing all of them makes the debugger stop working.  This is a
    list of offsets in the interrupt vector area; each entry means to
    copy that particular 16-byte vector.  An entry less than zero ends
    the table.  */
 static long multi_intv_install_table[] = {
-	0x40, 0x50,		/* trap vectors */
+	/* Trap vectors */
+	0x40, 0x50,		
+
 #ifdef CONFIG_RTE_CB_MULTI_DBTRAP
-	0x60,			/* illegal insn / dbtrap */
+	/* Illegal insn / dbtrap.  These are used by multi, so only handle
+	   them if configured to do so.  */
+	0x60,
+#endif
+
+	/* GINT1 - GINT3 (note, not GINT0!) */
+	IRQ_ADDR (IRQ_GINT(1)),
+	IRQ_ADDR (IRQ_GINT(2)),
+	IRQ_ADDR (IRQ_GINT(3)),
+
+	/* Timer D interrupts (up to 4 timers) */
+	IRQ_ADDR (IRQ_INTCMD(0)),
+#if IRQ_INTCMD_NUM > 1
+	IRQ_ADDR (IRQ_INTCMD(1)),
+#if IRQ_INTCMD_NUM > 2
+	IRQ_ADDR (IRQ_INTCMD(2)),
+#if IRQ_INTCMD_NUM > 3
+	IRQ_ADDR (IRQ_INTCMD(3)),
+#endif
 #endif
-	/* Note -- illegal insn trap is used by the debugger.  */
-	0xD0, 0xE0, 0xF0,	/* GINT1 - GINT3 */
-	0x240, 0x250, 0x260, 0x270, /* timer D interrupts */
-	0x2D0, 0x2E0, 0x2F0,	/* UART channel 0 */
-	0x310, 0x320, 0x330,	/* UART channel 1 */
-	0x350, 0x360, 0x370,	/* UART channel 2 */
+#endif
+	
+	/* UART interrupts (up to 3 channels) */
+	IRQ_ADDR (IRQ_INTSER (0)), /* err */
+	IRQ_ADDR (IRQ_INTSR  (0)), /* rx */
+	IRQ_ADDR (IRQ_INTST  (0)), /* tx */
+#if IRQ_INTSR_NUM > 1
+	IRQ_ADDR (IRQ_INTSER (1)), /* err */
+	IRQ_ADDR (IRQ_INTSR  (1)), /* rx */
+	IRQ_ADDR (IRQ_INTST  (1)), /* tx */
+#if IRQ_INTSR_NUM > 2
+	IRQ_ADDR (IRQ_INTSER (2)), /* err */
+	IRQ_ADDR (IRQ_INTSR  (2)), /* rx */
+	IRQ_ADDR (IRQ_INTST  (2)), /* tx */
+#endif
+#endif
+
 	-1
 };
 

arch/v850/kernel/rte_ma1_cb.c

 /*
  * arch/v850/kernel/rte_ma1_cb.c -- Midas labs RTE-V850E/MA1-CB board
  *
- *  Copyright (C) 2001,02  NEC Corporation
- *  Copyright (C) 2001,02  Miles Bader <miles@gnu.org>
+ *  Copyright (C) 2001,02,03  NEC Corporation
+ *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
  *
  * 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
@@ -31,6 +31,11 @@
 #define RAM_END		(SDRAM_ADDR + SDRAM_SIZE)
 
 
+void __init mach_early_init (void)
+{
+	rte_cb_early_init ();
+}
+
 void __init mach_get_physical_ram (unsigned long *ram_start,
 				   unsigned long *ram_len)
 {
@@ -67,7 +72,7 @@ void rte_ma1_cb_uart_pre_configure (unsigned chan,
 	if (chan == 0) {
 		/* Put P42 & P43 in I/O port mode.  */
 		MA_PORT4_PMC &= ~0xC;
-		/* Make P42 and output, and P43 an input.  */
+		/* Make P42 an output, and P43 an input.  */
 		MA_PORT4_PM = (MA_PORT4_PM & ~0xC) | 0x8;
 	}
 

arch/v850/kernel/rte_mb_a_pci.c

 /*
  * arch/v850/kernel/mb_a_pci.c -- PCI support for Midas lab RTE-MOTHER-A board
  *
- *  Copyright (C) 2001,02  NEC Corporation
- *  Copyright (C) 2001,02  Miles Bader <miles@gnu.org>
+ *  Copyright (C) 2001,02,03  NEC Electronics Corporation
+ *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
  *
  * 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
@@ -165,7 +165,6 @@ static int __devinit pcibios_init (void)
 			"PCI: PLX Technology PCI9080 HOST/PCI bridge\n");
 
 		MB_A_PCI_PCICR = 0x147;
-		MB_A_PCI_DMLBAM = 0x0;
 
 		MB_A_PCI_PCIBAR0 = 0x007FFF00;
 		MB_A_PCI_PCIBAR1 = 0x0000FF00;
@@ -179,12 +178,29 @@ static int __devinit pcibios_init (void)
 
 		/* Reprogram the motherboard's IO/config address space,
 		   as we don't support the GCS7 address space that the
-		   default uses.  Note that we have to give the address
-		   from the motherboard's point of view, which is
-		   different than the CPU's.  */
-		MB_A_PCI_DMLBAI = MB_A_PCI_IO_ADDR - GCS5_ADDR;
+		   default uses.  */
+
+		/* Significant address bits used for decoding PCI GCS5 space
+		   accessess.  */
 		MB_A_PCI_DMRR = ~(MB_A_PCI_MEM_SIZE - 1);
 
+		/* I don't understand this, but the SolutionGear example code
+		   uses such an offset, and it doesn't work without it.  XXX */
+#if GCS5_SIZE == 0x00800000
+#define GCS5_CFG_OFFS 0x00800000
+#else
+#define GCS5_CFG_OFFS 0
+#endif
+
+		/* Address bit values for matching.  Note that we have to give
+		   the address from the motherboard's point of view, which is
+		   different than the CPU's.  */
+		/* PCI memory space.  */
+		MB_A_PCI_DMLBAM = GCS5_CFG_OFFS + 0x0;
+		/* PCI I/O space.  */
+		MB_A_PCI_DMLBAI =
+			GCS5_CFG_OFFS + (MB_A_PCI_IO_ADDR - GCS5_ADDR);
+
 		mb_pci_bus = pci_scan_bus (0, &mb_pci_config_ops, 0);
 
 		pcibios_assign_resources ();

arch/v850/kernel/rte_nb85e_cb.c

 /*
  * arch/v850/kernel/rte_nb85e_cb.c -- Midas labs RTE-V850E/NB85E-CB board
  *
- *  Copyright (C) 2001,02  NEC Corporation
- *  Copyright (C) 2001,02  Miles Bader <miles@gnu.org>
+ *  Copyright (C) 2001,02,03  NEC Electronics Corporation
+ *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
  *
  * 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
@@ -26,10 +26,30 @@
 
 #include "mach.h"
 
+void __init mach_early_init (void)
+{
+	/* Configure caching; some possible settings:
+
+	     BHC = 0x0000, DCC = 0x0000	 -- all caching disabled
+	     BHC = 0x0040, DCC = 0x0000	 -- SDRAM: icache only
+	     BHC = 0x0080, DCC = 0x0C00	 -- SDRAM: write-back dcache only
+	     BHC = 0x00C0, DCC = 0x0C00	 -- SDRAM: icache + write-back dcache
+	     BHC = 0x00C0, DCC = 0x0800	 -- SDRAM: icache + write-thru dcache
+
+	   We can only cache SDRAM (we can't use cache SRAM because it's in
+	   the same memory region as the on-chip RAM and I/O space).
+
+	   Unfortunately, the dcache seems to be buggy, so we only use the
+	   icache for now.  */
+	nb85e_cache_enable (0x0040 /* BHC */, 0x0000 /* DCC */);
+
+	rte_cb_early_init ();
+}
+
 void __init mach_get_physical_ram (unsigned long *ram_start,
 				   unsigned long *ram_len)
 {
-	/* We just use SDRAM here; the kernel itself is in SRAM.  */
+	/* We just use SDRAM here.  */
 	*ram_start = SDRAM_ADDR;
 	*ram_len = SDRAM_SIZE;
 }
@@ -41,8 +61,10 @@ void __init mach_reserve_bootmem ()
 	u32 root_fs_image_end = (u32)&_root_fs_image_end;
 
 	/* Reserve the memory used by the root filesystem image if it's
-	   in RAM.  */
-	if (root_fs_image_start >= RAM_START && root_fs_image_start < RAM_END)
+	   in SDRAM.  */
+	if (root_fs_image_end > root_fs_image_start
+	    && root_fs_image_start >= SDRAM_ADDR
+	    && root_fs_image_start < (SDRAM_ADDR + SDRAM_SIZE))
 		reserve_bootmem (root_fs_image_start,
 				 root_fs_image_end - root_fs_image_start);
 }
@@ -52,3 +74,24 @@ void mach_gettimeofday (struct timespec *tv)
 	tv->tv_sec = 0;
 	tv->tv_nsec = 0;
 }
+
+/* Called before configuring an on-chip UART.  */
+void rte_nb85e_cb_uart_pre_configure (unsigned chan,
+				    unsigned cflags, unsigned baud)
+{
+	/* The RTE-NB85E-CB connects some general-purpose I/O pins on the
+	   CPU to the RTS/CTS lines the UART's serial connection, as follows:
+	   P00 = CTS (in), P01 = DSR (in), P02 = RTS (out), P03 = DTR (out). */
+
+	TEG_PORT0_PM = 0x03;	/* P00 and P01 inputs, P02 and P03 outputs */
+	TEG_PORT0_IO = 0x03;	/* Accept input */
+
+	/* Do pre-configuration for the actual UART.  */
+	teg_uart_pre_configure (chan, cflags, baud);
+}
+
+void __init mach_init_irqs (void)
+{
+	teg_init_irqs ();
+	rte_cb_init_irqs ();
+}

arch/v850/kernel/simcons.c

 /*
  * arch/v850/kernel/simcons.c -- Console I/O for GDB v850e simulator
  *
- *  Copyright (C) 2001,02  NEC Corporation
- *  Copyright (C) 2001,02  Miles Bader <miles@gnu.org>
+ *  Copyright (C) 2001,02,03  NEC Electronics Corporation
+ *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
  *
  * 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
@@ -19,6 +19,7 @@
 #include <linux/init.h>
 
 #include <asm/poll.h>
+#include <asm/string.h>
 #include <asm/simsyscall.h>
 
 

arch/v850/kernel/teg.c

+/*
+ * arch/v850/kernel/teg.c -- NB85E-TEG cpu chip
+ *
+ *  Copyright (C) 2001,02,03  NEC Electronics Corporation
+ *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
+ *
+ * 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.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/bootmem.h>
+#include <linux/irq.h>
+
+#include <asm/atomic.h>
+#include <asm/page.h>
+#include <asm/machdep.h>
+#include <asm/nb85e_timer_d.h>
+
+#include "mach.h"
+
+void __init mach_sched_init (struct irqaction *timer_action)
+{
+	/* Select timer interrupt instead of external pin.  */
+	TEG_ISS |= 0x1;
+	/* Start hardware timer.  */
+	nb85e_timer_d_configure (0, HZ);
+	/* Install timer interrupt handler.  */
+	setup_irq (IRQ_INTCMD(0), timer_action);
+}
+
+static struct nb85e_intc_irq_init irq_inits[] = {
+	{ "IRQ", 0,		NUM_CPU_IRQS,	1, 7 },
+	{ "CMD", IRQ_INTCMD(0),	IRQ_INTCMD_NUM,	1, 5 },
+	{ "SER", IRQ_INTSER(0),	IRQ_INTSER_NUM,	1, 3 },
+	{ "SR",	 IRQ_INTSR(0),	IRQ_INTSR_NUM,	1, 4 },
+	{ "ST",	 IRQ_INTST(0),	IRQ_INTST_NUM,	1, 5 },
+	{ 0 }
+};
+#define NUM_IRQ_INITS ((sizeof irq_inits / sizeof irq_inits[0]) - 1)
+
+static struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS];
+
+/* Initialize MA chip interrupts.  */
+void __init teg_init_irqs (void)
+{
+	nb85e_intc_init_irq_types (irq_inits, hw_itypes);
+}
+
+/* Called before configuring an on-chip UART.  */
+void teg_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud)
+{
+	/* Enable UART I/O pins instead of external interrupt pins, and
+	   UART interrupts instead of external pin interrupts.  */
+	TEG_ISS |= 0x4E;
+}

arch/v850/rte_nb85e_cb-multi.ld

+/* Linker script for the Midas labs RTE-NB85E-CB evaluation board
+   (CONFIG_RTE_CB_NB85E), with the Multi debugger ROM monitor .  */
+
+MEMORY {
+	/* 1MB of SRAM; we can't use the last 96KB, because it's used by
+	   the monitor scratch-RAM.  This memory is mirrored 4 times.  */
+	SRAM  : ORIGIN = 0x03C00000, LENGTH = 0x000E8000
+	/* Monitor scratch RAM; only the interrupt vectors should go here.  */
+	MRAM  : ORIGIN = 0x03CE8000, LENGTH = 0x00018000
+	/* 16MB of SDRAM.  */
+	SDRAM : ORIGIN = 0x01000000, LENGTH = 0x01000000
+}
+
+#ifdef CONFIG_RTE_CB_NB85E_KSRAM
+# define KRAM SRAM
+#else
+# define KRAM SDRAM
+#endif
+
+SECTIONS {
+	/* We can't use RAMK_KRAM_CONTENTS because that puts the whole
+	   kernel in a single ELF segment, and the Multi debugger (which
+	   we use to load the kernel) appears to have bizarre problems
+	   dealing with it.  */
+
+	.text : {
+		__kram_start = . ;
+		TEXT_CONTENTS
+	} > KRAM
+
+	.data : {
+		DATA_CONTENTS
+		BSS_CONTENTS
+		RAMK_INIT_CONTENTS
+		__kram_end = . ;
+		BOOTMAP_CONTENTS
+
+		/* The address at which the interrupt vectors are initially
+		   loaded by the loader.  We can't load the interrupt vectors
+		   directly into their target location, because the monitor
+		   ROM for the GHS Multi debugger barfs if we try.
+		   Unfortunately, Multi also doesn't deal correctly with ELF
+		   sections where the LMA and VMA differ (it just ignores the
+		   LMA), so we can't use that feature to work around the
+		   problem!  What we do instead is just put the interrupt
+		   vectors into a normal section, and have the
+		   `mach_early_init' function for Midas boards do the
+		   necessary copying and relocation at runtime (this section
+		   basically only contains `jr' instructions, so it's not
+		   that hard).  */
+		. = ALIGN (0x10) ;
+		__intv_load_start = . ;
+		INTV_CONTENTS
+	} > KRAM
+
+	.root ALIGN (4096) : { ROOT_FS_CONTENTS } > SDRAM
+}

arch/v850/rte_nb85e_cb.ld

+/* Linker script for the Midas labs RTE-NB85E-CB evaluation board
+   (CONFIG_RTE_CB_NB85E).  */
+
+MEMORY {
+	LOW   : ORIGIN = 0x0,	     LENGTH = 0x00100000
+	/* 1MB of SRAM; we can't use the last 96KB, because it's used by
+	   the monitor scratch-RAM.  This memory is mirrored 4 times.  */
+	SRAM  : ORIGIN = 0x03C00000, LENGTH = 0x000E8000
+	/* Monitor scratch RAM; only the interrupt vectors should go here.  */
+	MRAM  : ORIGIN = 0x03CE8000, LENGTH = 0x00018000
+	/* 16MB of SDRAM.  */
+	SDRAM : ORIGIN = 0x01000000, LENGTH = 0x01000000
+}
+
+#ifdef CONFIG_RTE_CB_NB85E_KSRAM
+# define KRAM SRAM
+#else
+# define KRAM SDRAM
+#endif
+
+SECTIONS {
+	.intv : { INTV_CONTENTS } > LOW
+	.sram : { RAMK_KRAM_CONTENTS } > KRAM
+	.root : { ROOT_FS_CONTENTS } > SDRAM
+}

include/asm-v850/nb85e_cache.h

@@ -2,8 +2,8 @@
  * include/asm-v850/nb85e_cache_cache.h -- Cache control for NB85E_CACHE212 and
  * 	NB85E_CACHE213 cache memories
  *
- *  Copyright (C) 2001  NEC Corporation
- *  Copyright (C) 2001  Miles Bader <miles@gnu.org>
+ *  Copyright (C) 2001,03  NEC Electronics Corporation
+ *  Copyright (C) 2001,03  Miles Bader <miles@gnu.org>
  *
  * 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
@@ -15,92 +15,65 @@
 #ifndef __V850_NB85E_CACHE_H__
 #define __V850_NB85E_CACHE_H__
 
+#include <asm/types.h>
+
+
 /* Cache control registers.  */
+#define NB85E_CACHE_BHC_ADDR	0xFFFFF06A
+#define NB85E_CACHE_BHC		(*(volatile u16 *)NB85E_CACHE_BHC_ADDR)
 #define NB85E_CACHE_ICC_ADDR	0xFFFFF070
+#define NB85E_CACHE_ICC		(*(volatile u16 *)NB85E_CACHE_ICC_ADDR)
+#define NB85E_CACHE_ISI_ADDR	0xFFFFF072
+#define NB85E_CACHE_ISI		(*(volatile u16 *)NB85E_CACHE_ISI_ADDR)
 #define NB85E_CACHE_DCC_ADDR	0xFFFFF078
+#define NB85E_CACHE_DCC		(*(volatile u16 *)NB85E_CACHE_DCC_ADDR)
 
 /* Size of a cache line in bytes.  */
 #define NB85E_CACHE_LINE_SIZE	16
 
+/* For <asm/cache.h> */
+#define L1_CACHE_BYTES				NB85E_CACHE_LINE_SIZE
+
 
 #ifndef __ASSEMBLY__
 
-extern inline void nb85e_cache_flush_cache (unsigned long cache_control_addr)
-{
-	/*
-	   From the NB85E Instruction/Data Cache manual, how to flush
-	   the instruction cache (ICC is the `Instruction Cache Control
-	   Register'):
-
-		mov	0x3, r2
-	  LOP0:
-		ld.h	ICC[r0], r1
-		cmp	r0, r1
-		bnz	LOP0
-		st.h	r2, ICC[r0]
-	  LOP1:				- First TAG clear
-		ld.h	ICC[r0], r1
-		cmp	r0, r1
-		bnz	LOP1
-		st.h	r2, ICC[r0]
-	  LOP2:				- Second TAG clear
-		ld.h	ICC[r0], r1
-		cmp	r0, r1
-		bnz	LOP2
-	*/
-	int cache_flush_bits, ccr_contents;
-	__asm__ __volatile__ (
-		"	mov	0x3, %1;"
-		"1:	ld.h	0[%2], %0;"
-		"	cmp	r0, %0;"
-		"	bnz	1b;"
-		"	st.h	%1, 0[%2];"
-		"2:	ld.h	0[%2], %0;"
-		"	cmp	r0, %0;"
-		"	bnz	2b;"
-		"	st.h	%1, 0[%2];"
-		"3:	ld.h	0[%2], %0;"
-		"	cmp	r0, %0;"
-		"	bnz	3b"
-		: "=&r" (ccr_contents), "=&r" (cache_flush_bits)
-		: "r" (cache_control_addr)
-		: "memory");
-}
+/* Set caching params via the BHC and DCC registers.  */
+void nb85e_cache_enable (u16 bhc, u16 dcc);
 
-extern inline void nb85e_cache_flush_icache (void)
-{
-	nb85e_cache_flush_cache (NB85E_CACHE_ICC_ADDR);
-}
+struct page;
+struct mm_struct;
+struct vm_area_struct;
 
-extern inline void nb85e_cache_flush_dcache (void)
-{
-	nb85e_cache_flush_cache (NB85E_CACHE_DCC_ADDR);
-}
+extern void nb85e_cache_flush_all (void);
+extern void nb85e_cache_flush_mm (struct mm_struct *mm);
+extern void nb85e_cache_flush_range (struct mm_struct *mm,
+				     unsigned long start,
+				     unsigned long end);
+extern void nb85e_cache_flush_page (struct vm_area_struct *vma,
+				    unsigned long page_addr);
+extern void nb85e_cache_flush_dcache_page (struct page *page);
+extern void nb85e_cache_flush_icache (void);
+extern void nb85e_cache_flush_icache_range (unsigned long start,
+					    unsigned long end);
+extern void nb85e_cache_flush_icache_page (struct vm_area_struct *vma,
+					   struct page *page);
+extern void nb85e_cache_flush_icache_user_range (struct vm_area_struct *vma,
+						 struct page *page,
+						 unsigned long adr, int len);
+extern void nb85e_cache_flush_sigtramp (unsigned long addr);
 
-extern inline void nb85e_cache_flush (void)
-{
-	nb85e_cache_flush_icache ();
-	nb85e_cache_flush_dcache ();
-}
+#define flush_page_to_ram(x)	((void)0)
+#define flush_cache_all		nb85e_cache_flush_all
+#define flush_cache_mm		nb85e_cache_flush_mm
+#define flush_cache_range	nb85e_cache_flush_range
+#define flush_cache_page	nb85e_cache_flush_page
+#define flush_dcache_page	nb85e_cache_flush_dcache_page
+#define flush_icache		nb85e_cache_flush_icache
+#define flush_icache_range	nb85e_cache_flush_icache_range
+#define flush_icache_page	nb85e_cache_flush_icache_page
+#define flush_icache_user_range	nb85e_cache_flush_icache_user_range
+#define flush_cache_sigtramp	nb85e_cache_flush_sigtramp
 
 #endif /* !__ASSEMBLY__ */
 
-
-/* Define standard definitions in terms of processor-specific ones.  */
-
-/* For <asm/cache.h> */
-#define L1_CACHE_BYTES				NB85E_CACHE_LINE_SIZE
-
-/* For <asm/pgalloc.h> */
-#define flush_cache_all()			nb85e_cache_flush ()
-#define flush_cache_mm(mm)			nb85e_cache_flush ()
-#define flush_cache_range(mm, start, end)	nb85e_cache_flush ()
-#define flush_cache_page(vma, vmaddr)		nb85e_cache_flush ()
-#define flush_page_to_ram(page)			nb85e_cache_flush ()
-#define flush_dcache_page(page)			nb85e_cache_flush_dcache ()
-#define flush_icache_range(start, end)		nb85e_cache_flush_icache ()
-#define flush_icache_page(vma,pg)		nb85e_cache_flush_icache ()
-#define flush_icache()				nb85e_cache_flush_icache ()
-#define flush_cache_sigtramp(vaddr)		nb85e_cache_flush_icache ()
-
 #endif /* __V850_NB85E_CACHE_H__ */

include/asm-v850/nb85e_timer_d.h

@@ -2,8 +2,8 @@
  * include/asm-v850/nb85e_timer_d.h -- `Timer D' component often used
  *	with the NB85E cpu core
  *
- *  Copyright (C) 2001,02  NEC Corporation
- *  Copyright (C) 2001,02  Miles Bader <miles@gnu.org>
+ *  Copyright (C) 2001,02,03  NEC Electronics Corporation
+ *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
  *
  * 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
@@ -27,7 +27,7 @@
 
 /* Count compare registers for timer D.  */
 #define NB85E_TIMER_D_CMD_ADDR(n) (NB85E_TIMER_D_CMD_BASE_ADDR + 0x10 * (n))
-#define NB85E_TIMER_D_CMD(n)	  (*(u16 *)NB85E_TIMER_D_CMD_ADDR(n))
+#define NB85E_TIMER_D_CMD(n)	  (*(volatile u16 *)NB85E_TIMER_D_CMD_ADDR(n))
 
 /* Control registers for timer D.  */
 #define NB85E_TIMER_D_TMCD_ADDR(n) (NB85E_TIMER_D_TMCD_BASE_ADDR + 0x10 * (n))

include/asm-v850/posix_types.h

 /*
  * include/asm-v850/posix_types.h -- Kernel versions of standard types
  *
- *  Copyright (C) 2001,02  NEC Corporation
- *  Copyright (C) 2001,02  Miles Bader <miles@gnu.org>
+ *  Copyright (C) 2001,02,03  NEC Electronics Corporation
+ *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
  *
  * 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
@@ -31,6 +31,8 @@ typedef int		__kernel_ptrdiff_t;
 typedef long		__kernel_time_t;
 typedef long		__kernel_suseconds_t;
 typedef long		__kernel_clock_t;
+typedef int		__kernel_timer_t;
+typedef int		__kernel_clockid_t;
 typedef int		__kernel_daddr_t;
 typedef char *		__kernel_caddr_t;
 typedef unsigned short	__kernel_uid16_t;

include/asm-v850/processor.h

 /*
  * include/asm-v850/processor.h
  *
- *  Copyright (C) 2001,02  NEC Corporation
- *  Copyright (C) 2001,02  Miles Bader <miles@gnu.org>
+ *  Copyright (C) 2001,02,03  NEC Corporation
+ *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
  *
  * 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
@@ -91,15 +91,17 @@ static inline void exit_thread (void)
 {
 }
 
-/* Return saved (kernel) PC of a blocked thread.  */
-extern inline unsigned long thread_saved_pc (struct thread_struct *t)
-{
-	struct pt_regs *r = (struct pt_regs *)(t->ksp + STATE_SAVE_PT_OFFSET);
-	/* Actually, we return the LP register, because the thread is
-	   actually blocked in switch_thread, and we're interested in
-	   the PC it will _return_ to.  */
-	return r->gpr[GPR_LP];
-}
+
+/* Return the registers saved during context-switch by the currently
+   not-running thread T.  Note that this only includes some registers!
+   See entry.S for details.  */
+#define thread_saved_regs(t) \
+   ((struct pt_regs*)((t)->thread.ksp + STATE_SAVE_PT_OFFSET))
+/* Return saved (kernel) PC of a blocked thread.  Actually, we return the
+   LP register, because the thread is actually blocked in switch_thread,
+   and we're interested in the PC it will _return_ to.  */
+#define thread_saved_pc(t)   (thread_saved_regs(t)->gpr[GPR_LP])
+
 
 unsigned long get_wchan (struct task_struct *p);
 

include/asm-v850/ptrace.h

 /*
  * include/asm-v850/ptrace.h -- Access to CPU registers
  *
- *  Copyright (C) 2001,02  NEC Corporation
- *  Copyright (C) 2001,02  Miles Bader <miles@gnu.org>
+ *  Copyright (C) 2001,02,03  NEC Corporation
+ *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
  *
  * 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
@@ -102,10 +102,19 @@ struct pt_regs
 #define PT_CTBP		((NUM_GPRS + 4) * _PT_REG_SIZE)
 #define PT_KERNEL_MODE	((NUM_GPRS + 5) * _PT_REG_SIZE)
 
-#define PT_SYSCALL	PT_GPR(0)
+/* Where the current syscall number is stashed; obviously only valid in
+   the kernel!  */
+#define PT_CUR_SYSCALL	PT_GPR(0)
 
 /* Size of struct pt_regs, including alignment.  */
 #define PT_SIZE		((NUM_GPRS + 6) * _PT_REG_SIZE)
 
 
+/* These are `magic' values for PTRACE_PEEKUSR that return info about where
+   a process is located in memory.  */
+#define PT_TEXT_ADDR	(PT_SIZE + 1)
+#define PT_TEXT_LEN	(PT_SIZE + 2)
+#define PT_DATA_ADDR	(PT_SIZE + 3)
+
+
 #endif /* __V850_PTRACE_H__ */

include/asm-v850/rte_cb.h

 /*
  * include/asm-v850/rte_cb.h -- Midas labs RTE-CB series of evaluation boards
  *
- *  Copyright (C) 2001,02  NEC Corporation
- *  Copyright (C) 2001,02  Miles Bader <miles@gnu.org>
+ *  Copyright (C) 2001,02,03  NEC Corporation
+ *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
  *
  * 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
@@ -15,18 +15,6 @@
 #define __V850_RTE_CB_H__
 
 
-/* CPU addresses of GBUS memory spaces.  */
-#define GCS0_ADDR		0x05000000 /* GCS0 - Common SRAM (2MB) */
-#define GCS0_SIZE		0x00200000 /*   2MB */
-#define GCS1_ADDR		0x06000000 /* GCS1 - Flash ROM (8MB) */
-#define GCS1_SIZE		0x00800000 /*   8MB */
-#define GCS2_ADDR		0x07900000 /* GCS2 - I/O registers */
-#define GCS2_SIZE		0x00400000 /*   4MB */
-#define GCS5_ADDR		0x04000000 /* GCS5 - PCI bus space */
-#define GCS5_SIZE		0x01000000 /*   16MB */
-#define GCS6_ADDR		0x07980000 /* GCS6 - PCI control registers */
-#define GCS6_SIZE		0x00000200 /*   512B */
-
 /* The SRAM on the Mother-A motherboard.  */
 #define MB_A_SRAM_ADDR		GCS0_ADDR
 #define MB_A_SRAM_SIZE		0x00200000 /* 2MB */
@@ -78,9 +66,8 @@
 
 
 #ifndef __ASSEMBLY__
-
+extern void rte_cb_early_init (void);
 extern void rte_cb_init_irqs (void);
-
 #endif /* !__ASSEMBLY__ */
 
 

include/asm-v850/rte_ma1_cb.h

 /*
  * include/asm-v850/rte_ma1_cb.h -- Midas labs RTE-V850/MA1-CB board
  *
- *  Copyright (C) 2001,02  NEC Corporation
- *  Copyright (C) 2001,02  Miles Bader <miles@gnu.org>
+ *  Copyright (C) 2001,02,03  NEC Electronics Corporation
+ *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
  *
  * 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
@@ -17,6 +17,19 @@
 #include <asm/rte_cb.h>		/* Common defs for Midas RTE-CB boards.  */
 
 
+/* CPU addresses of GBUS memory spaces.  */
+#define GCS0_ADDR		0x05000000 /* GCS0 - Common SRAM (2MB) */
+#define GCS0_SIZE		0x00200000 /*   2MB */
+#define GCS1_ADDR		0x06000000 /* GCS1 - Flash ROM (8MB) */
+#define GCS1_SIZE		0x00800000 /*   8MB */
+#define GCS2_ADDR		0x07900000 /* GCS2 - I/O registers */
+#define GCS2_SIZE		0x00400000 /*   4MB */
+#define GCS5_ADDR		0x04000000 /* GCS5 - PCI bus space */
+#define GCS5_SIZE		0x01000000 /*   16MB */
+#define GCS6_ADDR		0x07980000 /* GCS6 - PCI control registers */
+#define GCS6_SIZE		0x00000200 /*   512B */
+
+
 /* The GBUS GINT0 - GINT4 interrupts are connected to the INTP000 - INTP011
    pins on the CPU.  These are shared among the GBUS interrupts.  */
 #define IRQ_GINT(n)		IRQ_INTP(n)

include/asm-v850/rte_nb85e_cb.h

 /*
  * include/asm-v850/rte_nb85e_cb.h -- Midas labs RTE-V850/NB85E-CB board
  *
- *  Copyright (C) 2001,02  NEC Corporation
- *  Copyright (C) 2001,02  Miles Bader <miles@gnu.org>
+ *  Copyright (C) 2001,02,03  NEC Electronics Corporation
+ *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
  *
  * 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
@@ -16,6 +16,30 @@
 
 #include <asm/rte_cb.h>		/* Common defs for Midas RTE-CB boards.  */
 
+
+/* CPU addresses of GBUS memory spaces.  */
+#define GCS0_ADDR		0x00400000 /* GCS0 - Common SRAM (2MB) */
+#define GCS0_SIZE		0x00400000 /*   4MB */
+#define GCS1_ADDR		0x02000000 /* GCS1 - Flash ROM (8MB) */
+#define GCS1_SIZE		0x00800000 /*   8MB */
+#define GCS2_ADDR		0x03900000 /* GCS2 - I/O registers */
+#define GCS2_SIZE		0x00080000 /*   512KB */
+#define GCS3_ADDR		0x02800000 /* GCS3 - EXT-bus: memory space */
+#define GCS3_SIZE		0x00800000 /*   8MB */
+#define GCS4_ADDR		0x03A00000 /* GCS4 - EXT-bus: I/O space */
+#define GCS4_SIZE		0x00200000 /*   2MB */
+#define GCS5_ADDR		0x00800000 /* GCS5 - PCI bus space */
+#define GCS5_SIZE		0x00800000 /*   8MB */
+#define GCS6_ADDR		0x03980000 /* GCS6 - PCI control registers */
+#define GCS6_SIZE		0x00010000 /*   64KB */
+
+
+/* The GBUS GINT0 - GINT3 interrupts are connected to CPU interrupts 10-12.
+   These are shared among the GBUS interrupts.  */
+#define IRQ_GINT(n)		(10 + (n))
+#define IRQ_GINT_NUM		3
+
+
 #define PLATFORM	"rte-v850e/nb85e-cb"
 #define PLATFORM_LONG	"Midas lab RTE-V850E/NB85E-CB"
 
@@ -41,13 +65,13 @@
 
 /* The chip's real interrupt vectors are in ROM, but they jump to a
    secondary interrupt vector table in RAM.  */
-#define INTV_BASE	0x004F8000
+#define INTV_BASE		0x03CF8000
 
 /* Scratch memory used by the ROM monitor, which shouldn't be used by
    linux (except for the alternate interrupt vector area, defined
    above).  */
 #define MON_SCRATCH_ADDR	0x03CE8000
-#define MON_SCRATCH_SIZE	0x00008000 /* 32KB */
+#define MON_SCRATCH_SIZE	0x00018000 /* 96KB */
 
 #endif /* CONFIG_ROM_KERNEL */
 
@@ -60,4 +84,25 @@
 #define LED_NUM_DIGITS	4
 
 
+/* Override the basic TEG UART pre-initialization so that we can
+   initialize extra stuff.  */
+#undef NB85E_UART_PRE_CONFIGURE	/* should be defined by <asm/teg.h> */
+#define NB85E_UART_PRE_CONFIGURE	rte_nb85e_cb_uart_pre_configure
+#ifndef __ASSEMBLY__
+extern void rte_nb85e_cb_uart_pre_configure (unsigned chan,
+					     unsigned cflags, unsigned baud);
+#endif
+
+/* This board supports RTS/CTS for the on-chip UART. */
+
+/* CTS is pin P00.  */
+#define NB85E_UART_CTS(chan)	(! (TEG_PORT0_IO & 0x1))
+/* RTS is pin P02.  */
+#define NB85E_UART_SET_RTS(chan, val)					      \
+   do {									      \
+	   unsigned old = TEG_PORT0_IO;					      \
+	   TEG_PORT0_IO = val ? (old & ~0x4) : (old | 0x4);		      \
+   } while (0)
+
+
 #endif /* __V850_RTE_NB85E_CB_H__ */

include/asm-v850/system.h

@@ -72,17 +72,10 @@ static inline int irqs_disabled (void)
 #define set_mb(var, value)	set_rmb (var, value)
 #define set_wmb(var, value)	do { var = value; wmb (); } while (0)
 
-#ifdef CONFIG_SMP
 #define smp_mb()	mb ()
 #define smp_rmb()	rmb ()
 #define smp_wmb()	wmb ()
 #define smp_read_barrier_depends()	read_barrier_depends()
-#else
-#define smp_mb()	barrier ()
-#define smp_rmb()	barrier ()
-#define smp_wmb()	barrier ()
-#define smp_read_barrier_depends()	((void)0)
-#endif
 
 #define xchg(ptr, with) \
   ((__typeof__ (*(ptr)))__xchg ((unsigned long)(with), (ptr), sizeof (*(ptr))))

include/asm-v850/teg.h

 /*
- * include/asm-v850/nb85e_teg.h -- NB85E-TEG cpu chip
+ * include/asm-v850/teg.h -- NB85E-TEG cpu chip
  *
- *  Copyright (C) 2001,02  NEC Corporation
- *  Copyright (C) 2001,02  Miles Bader <miles@gnu.org>
+ *  Copyright (C) 2001,02,03  NEC Electronics Corporation
+ *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
  *
  * 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
@@ -11,33 +11,44 @@
  * Written by Miles Bader <miles@gnu.org>
  */
 
-#ifndef __V850_NB85E_TEG_H__
-#define __V850_NB85E_TEG_H__
+#ifndef __V850_TEG_H__
+#define __V850_TEG_H__
 
-/* The NB85E_TEG uses the NB85E cpu core.  */
+
+/* The TEG uses the NB85E cpu core.  */
 #include <asm/nb85e.h>
+#include <asm/nb85e_cache.h>
+
+
+#define CPU_MODEL	"v850e/nb85e-teg"
+#define CPU_MODEL_LONG	"NEC V850E/NB85E TEG"
+
 
-#define CHIP		"v850e/nb85e-teg"
-#define CHIP_LONG	"NEC V850E/NB85E TEG"
-
-/* Hardware-specific interrupt numbers (in the kernel IRQ namespace).  */
-#define IRQ_INTOV(n)	(n)	/* 0-3 */
-#define IRQ_INTOV_NUM	4
-#define IRQ_INTCMD(n)	(0x1c + (n)) /* interval timer interrupts 0-3 */
-#define IRQ_INTCMD_NUM	4
-#define IRQ_INTDMA(n)	(0x20 + (n)) /* DMA interrupts 0-3 */
-#define IRQ_INTDMA_NUM	4
-#define IRQ_INTCSI(n)	(0x24 + (n)) /* CSI 0-2 transmit/receive completion */
-#define IRQ_INTCSI_NUM	3
-#define IRQ_INTSER(n)	(0x25 + (n)) /* UART 0-2 reception error */
-#define IRQ_INTSER_NUM	3
-#define IRQ_INTSR(n)	(0x26 + (n)) /* UART 0-2 reception completion */
-#define IRQ_INTSR_NUM	3
-#define IRQ_INTST(n)	(0x27 + (n)) /* UART 0-2 transmission completion */
-#define IRQ_INTST_NUM	3
+/* For <asm/entry.h> */
+/* We use on-chip RAM, for a few miscellaneous variables that must be
+   accessible using a load instruction relative to R0.  On the NB85E/TEG,
+   There's 60KB of iRAM starting at 0xFFFF0000, however we need the base
+   address to be addressable by a 16-bit signed offset, so we only use the
+   second half of it starting from 0xFFFF8000.  */
+#define R0_RAM_ADDR			0xFFFF8000
+
+
+/* Hardware-specific interrupt numbers (in the kernel IRQ namespace).
+   Some of these are parameterized even though there's only a single
+   interrupt, for compatibility with some generic code that works on other
+   processor models.  */
+#define IRQ_INTCMD(n)	6	/* interval timer interrupt */
+#define IRQ_INTCMD_NUM	1
+#define IRQ_INTSER(n)	16	/* UART reception error */
+#define IRQ_INTSER_NUM	1
+#define IRQ_INTSR(n)	17	/* UART reception completion */
+#define IRQ_INTSR_NUM	1
+#define IRQ_INTST(n)	18	/* UART transmission completion */
+#define IRQ_INTST_NUM	1
 
 /* For <asm/irq.h> */
-#define NUM_MACH_IRQS	0x30
+#define NUM_CPU_IRQS	64
+
 
 /* TEG UART details.  */
 #define NB85E_UART_BASE_ADDR(n)		(0xFFFFF600 + 0x10 * (n))
@@ -50,9 +61,41 @@
 #define NB85E_UART_RXB_ADDR(n)		(NB85E_UART_BASE_ADDR(n) + 0xC)
 #define NB85E_UART_NUM_CHANNELS		1
 #define NB85E_UART_BASE_FREQ		CPU_CLOCK_FREQ
+/* This is a function that gets called before configuring the UART.  */
+#define NB85E_UART_PRE_CONFIGURE	teg_uart_pre_configure
+#ifndef __ASSEMBLY__
+extern void teg_uart_pre_configure (unsigned chan,
+				    unsigned cflags, unsigned baud);
+#endif
+
 
 /* The TEG RTPU.  */
 #define NB85E_RTPU_BASE_ADDR		0xFFFFF210
 
 
-#endif /* __V850_NB85E_TEG_H__ */
+/* TEG series timer D details.  */
+#define NB85E_TIMER_D_BASE_ADDR		0xFFFFF210
+#define NB85E_TIMER_D_TMCD_BASE_ADDR 	(NB85E_TIMER_D_BASE_ADDR + 0x0)
+#define NB85E_TIMER_D_TMD_BASE_ADDR 	(NB85E_TIMER_D_BASE_ADDR + 0x4)
+#define NB85E_TIMER_D_CMD_BASE_ADDR 	(NB85E_TIMER_D_BASE_ADDR + 0x8)
+#define NB85E_TIMER_D_BASE_FREQ		CPU_CLOCK_FREQ
+
+
+/* `Interrupt Source Select' control register.  */
+#define TEG_ISS_ADDR			0xFFFFF7FA
+#define TEG_ISS				(*(volatile u8 *)TEG_ISS_ADDR)
+
+/* Port 0 I/O register (bits 0-3 used).  */
+#define TEG_PORT0_IO_ADDR		0xFFFFF7F2
+#define TEG_PORT0_IO			(*(volatile u8 *)TEG_PORT0_IO_ADDR)
+/* Port 0 control register (bits 0-3 control mode, 0 = output, 1 = input).  */
+#define TEG_PORT0_PM_ADDR		0xFFFFF7F4
+#define TEG_PORT0_PM			(*(volatile u8 *)TEG_PORT0_PM_ADDR)
+
+
+#ifndef __ASSEMBLY__
+extern void teg_init_irqs (void);
+#endif
+
+
+#endif /* __V850_TEG_H__ */

include/asm-v850/unistd.h

 /*
  * include/asm-v850/unistd.h -- System call numbers and invocation mechanism
  *
- *  Copyright (C) 2001,02  NEC Corporation
- *  Copyright (C) 2001,02  Miles Bader <miles@gnu.org>
+ *  Copyright (C) 2001,02,03  NEC Electronics Corporation
+ *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
  *
  * 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
@@ -205,8 +205,6 @@
 #define __NR_pivot_root		200
 #define __NR_gettid		201
 #define __NR_tkill		202
-/* #define __NR_mincore		203 */
-/* #define __NR_madvise		204 */
 
 
 /* Syscall protocol: