* [PATCH 1/2] Wind River 4KC PPMC Eval Board Support
@ 2006-05-05 15:42 ` Zhan, Rongkai
0 siblings, 0 replies; 7+ messages in thread
From: Zhan, Rongkai @ 2006-05-05 15:42 UTC (permalink / raw)
To: linux-mips; +Cc: ralf
Hello,
Here is a patch to add the support for Wind River 4KC PPMC Evaluation
board, which is based on the GT64120 bridge chip.
Mark. Zhan
Signed-off-by: Rongkai.Zhan <Rongkai.zhan@windriver.com>
diff -urN linux-2.6.16.11/arch/mips/gt64120/wrppmc/int-handler.S
linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/int-handler.S
--- linux-2.6.16.11/arch/mips/gt64120/wrppmc/int-handler.S
1970-01-01 08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/int-handler.S
2006-05-05 16:38:12.000000000 +0800
@@ -0,0 +1,37 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 1995, 1996, 1997, 2003 by Ralf Baechle
+ * Copyright (C) Wind River System Inc. Rongkai.Zhan
<rongkai.zhan@windriver.com>
+ */
+#include <asm/asm.h>
+#include <asm/mipsregs.h>
+#include <asm/addrspace.h>
+#include <asm/regdef.h>
+#include <asm/stackframe.h>
+
+ .align 5
+ .set noat
+NESTED(handle_IRQ, PT_SIZE, sp)
+ SAVE_ALL
+ CLI # Important: mark KERNEL mode !
+
+ mfc0 t0, CP0_CAUSE # get pending interrupts
+ mfc0 t1, CP0_STATUS # get enabled interrupts
+ and t0, t0, t1 # get allowed interrupts
+ andi t0, t0, 0xFF00
+ beqz t0, 1f
+
+ move a0, sp # Prepare 'struct pt_regs *regs'
pointer
+ jal do_wrppmc_IRQ
+ nop
+ j ret_from_irq
+ nop
+
+ /* wrong alarm or masked ... */
+1: j spurious_interrupt
+ nop
+END(handle_IRQ)
+
diff -urN linux-2.6.16.11/arch/mips/gt64120/wrppmc/irq.c
linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/irq.c
--- linux-2.6.16.11/arch/mips/gt64120/wrppmc/irq.c 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/irq.c 2006-05-05
17:30:57.000000000 +0800
@@ -0,0 +1,76 @@
+/*
+ * irq.c: GT64120 Interrupt Controller
+ *
+ * Copyright (C) 2006, Wind River System Inc.
+ * Author: Rongkai.Zhan, <rongkai.zhan@windriver.com>
+ *
+ * This program is free software; you can redistribute it and/or
modify it
+ * under the terms of the GNU General Public License as published by
the
+ * Free Software Foundation; either version 2 of the License, or (at
your
+ * option) any later version.
+ */
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/kernel_stat.h>
+#include <linux/module.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/timex.h>
+#include <linux/slab.h>
+#include <linux/random.h>
+#include <linux/bitops.h>
+#include <asm/bootinfo.h>
+#include <asm/io.h>
+#include <asm/bitops.h>
+#include <asm/mipsregs.h>
+#include <asm/system.h>
+#include <asm/irq_cpu.h>
+#include <asm/gt64120.h>
+
+extern asmlinkage void handle_IRQ(void);
+
+asmlinkage void do_wrppmc_IRQ(struct pt_regs *regs)
+{
+ unsigned long pending;
+ int irq;
+
+ pending = read_c0_cause();
+ pending &= read_c0_status();
+ pending = (pending & 0xFF00) >> 8;
+ irq = ffs(pending) - 1;
+
+ do_IRQ(irq, regs);
+}
+
+/**
+ * Initialize GT64120 Interrupt Controller
+ */
+void gt64120_init_pic(void)
+{
+ /* clear CPU Interrupt Cause Registers */
+ GT_WRITE(GT_INTRCAUSE_OFS, (0x1F << 21));
+ GT_WRITE(GT_HINTRCAUSE_OFS, 0x00);
+
+ /* Disable all interrupts from GT64120 bridge chip */
+ GT_WRITE(GT_INTRMASK_OFS, 0x00);
+ GT_WRITE(GT_HINTRMASK_OFS, 0x00);
+ GT_WRITE(GT_PCI0_ICMASK_OFS, 0x00);
+ GT_WRITE(GT_PCI0_HICMASK_OFS, 0x00);
+}
+
+void __init arch_init_irq(void)
+{
+ /* enable all CPU interrupt bits. */
+ set_c0_status(ST0_IM); /* IE bit is still 0 */
+
+ /* Install MIPS Interrupt Trap Vector */
+ set_except_vector(0, handle_IRQ);
+
+ /* IRQ 0 - 7 are for MIPS common irq_cpu controller */
+ mips_cpu_irq_init(0);
+
+ gt64120_init_pic();
+}
diff -urN linux-2.6.16.11/arch/mips/gt64120/wrppmc/Makefile
linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/Makefile
--- linux-2.6.16.11/arch/mips/gt64120/wrppmc/Makefile 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/Makefile
2006-04-14 15:25:48.000000000 +0800
@@ -0,0 +1,14 @@
+#
+# 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.
+#
+# Copyright 2006 Wind River System, Inc.
+# Author: Rongkai.Zhan <rongkai.zhan@windriver.com>
+#
+# Makefile for the Wind River MIPS 4KC PPMC Eval Board
+#
+
+obj-y += int-handler.o irq.o reset.o setup.o time.o pci.o
+
+EXTRA_AFLAGS := $(CFLAGS)
diff -urN linux-2.6.16.11/arch/mips/gt64120/wrppmc/pci.c
linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/pci.c
--- linux-2.6.16.11/arch/mips/gt64120/wrppmc/pci.c 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/pci.c 2006-05-05
17:25:48.000000000 +0800
@@ -0,0 +1,53 @@
+/*
+ * pci.c: GT64120 PCI support.
+ *
+ * Copyright (C) 2006, Wind River System Inc. Rongkai.Zhan
<rongkai.zhan@windriver.com>
+ *
+ * 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.
+ */
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <asm/gt64120.h>
+
+extern struct pci_ops gt64120_pci_ops;
+
+static struct resource pci0_io_resource = {
+ .name = "pci_0 io",
+ .start = GT_PCI_IO_BASE,
+ .end = GT_PCI_IO_BASE + GT_PCI_IO_SIZE - 1,
+ .flags = IORESOURCE_IO,
+};
+
+static struct resource pci0_mem_resource = {
+ .name = "pci_0 memory",
+ .start = GT_PCI_MEM_BASE,
+ .end = GT_PCI_MEM_BASE + GT_PCI_MEM_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct pci_controller hose_0 = {
+ .pci_ops = >64120_pci_ops,
+ .io_resource = &pci0_io_resource,
+ .mem_resource = &pci0_mem_resource,
+};
+
+static int __init gt64120_pci_init(void)
+{
+ u32 tmp;
+
+ tmp = GT_READ(GT_PCI0_CMD_OFS); /* Huh??? -- Ralf */
+ tmp = GT_READ(GT_PCI0_BARE_OFS);
+
+ /* reset the whole PCI I/O space range */
+ ioport_resource.start = GT_PCI_IO_BASE;
+ ioport_resource.end = GT_PCI_IO_BASE + GT_PCI_IO_SIZE - 1;
+
+ register_pci_controller(&hose_0);
+ return 0;
+}
+
+arch_initcall(gt64120_pci_init);
diff -urN linux-2.6.16.11/arch/mips/gt64120/wrppmc/reset.c
linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/reset.c
--- linux-2.6.16.11/arch/mips/gt64120/wrppmc/reset.c 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/reset.c
2006-04-13 22:24:56.000000000 +0800
@@ -0,0 +1,50 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 1997 Ralf Baechle
+ */
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/processor.h>
+#include <asm/reboot.h>
+#include <asm/system.h>
+#include <asm/cacheflush.h>
+
+void wrppmc_machine_restart(char *command)
+{
+ /*
+ * Ouch, we're still alive ... This time we take the silver
bullet ...
+ * ... and find that we leave the hardware in a state in which
the
+ * kernel in the flush locks up somewhen during of after the PCI
+ * detection stuff.
+ */
+ local_irq_disable();
+ set_c0_status(ST0_BEV | ST0_ERL);
+ change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED);
+ flush_cache_all();
+ write_c0_wired(0);
+ __asm__ __volatile__("jr\t%0"::"r"(0xbfc00000));
+}
+
+void wrppmc_machine_halt(void)
+{
+ local_irq_disable();
+
+ printk(KERN_NOTICE "You can safely turn off the power\n");
+ while (1) {
+ __asm__(
+ ".set\tmips3\n\t"
+ "wait\n\t"
+ ".set\tmips0"
+ );
+ }
+}
+
+void wrppmc_machine_power_off(void)
+{
+ wrppmc_machine_halt();
+}
diff -urN linux-2.6.16.11/arch/mips/gt64120/wrppmc/setup.c
linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/setup.c
--- linux-2.6.16.11/arch/mips/gt64120/wrppmc/setup.c 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/setup.c
2006-05-05 17:08:27.000000000 +0800
@@ -0,0 +1,173 @@
+/*
+ * setup.c: Setup pointers to hardware dependent routines.
+ *
+ * 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.
+ *
+ * Copyright (C) 1996, 1997, 2004 by Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (C) 2006, Wind River System Inc. Rongkai.zhan
<rongkai.zhan@windriver.com>
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/tty.h>
+#include <linux/serial.h>
+#include <linux/serial_core.h>
+#include <linux/pm.h>
+
+#include <asm/io.h>
+#include <asm/bootinfo.h>
+#include <asm/reboot.h>
+#include <asm/time.h>
+#include <asm/gt64120.h>
+
+unsigned long gt64120_base = KSEG1ADDR(0x14000000);
+
+#ifdef WRPPMC_EARLY_DEBUG
+
+static volatile unsigned char * wrppmc_led = \
+ (volatile unsigned char *)KSEG1ADDR(WRPPMC_LED_BASE);
+
+/*
+ * PPMC LED control register:
+ * -) bit[0] controls DS1 LED (1 - OFF, 0 - ON)
+ * -) bit[1] controls DS2 LED (1 - OFF, 0 - ON)
+ * -) bit[2] controls DS4 LED (1 - OFF, 0 - ON)
+ */
+void wrppmc_led_on(int mask)
+{
+ unsigned char value = *wrppmc_led;
+
+ value &= (0xF8 | mask);
+ *wrppmc_led = value;
+}
+
+/* If mask = 0, turn off all LEDs */
+void wrppmc_led_off(int mask)
+{
+ unsigned char value = *wrppmc_led;
+
+ value |= (0x7 & mask);
+ *wrppmc_led = value;
+}
+
+/*
+ * We assume that bootloader has initialized UART16550 correctly
+ */
+void __init wrppmc_early_putc(char ch)
+{
+ static volatile unsigned char *wrppmc_uart = \
+ (volatile unsigned char
*)KSEG1ADDR(WRPPMC_UART16550_BASE);
+ unsigned char value;
+
+ /* Wait until Transmit-Holding-Register is empty */
+ while (1) {
+ value = *(wrppmc_uart + 5);
+ if (value & 0x20)
+ break;
+ }
+
+ *wrppmc_uart = ch;
+}
+
+void __init wrppmc_early_printk(const char *fmt, ...)
+{
+ static char pbuf[256] = {'\0', };
+ char *ch = pbuf;
+ va_list args;
+ unsigned int i;
+
+ memset(pbuf, 0, 256);
+ va_start(args, fmt);
+ i = vsprintf(pbuf, fmt, args);
+ va_end(args);
+
+ /* Print the string */
+ while (*ch != '\0') {
+ wrppmc_early_putc(*ch);
+ /* if print '\n', also print '\r' */
+ if (*ch++ == '\n')
+ wrppmc_early_putc('\r');
+ }
+}
+#endif /* WRPPMC_EARLY_DEBUG */
+
+unsigned long __init prom_free_prom_memory(void)
+{
+ return 0;
+}
+
+#ifdef CONFIG_SERIAL_8250
+static void wrppmc_setup_serial(void)
+{
+ struct uart_port up;
+
+ memset(&up, 0x00, sizeof(struct uart_port));
+
+ /*
+ * A note about mapbase/membase
+ * -) mapbase is the physical address of the IO port.
+ * -) membase is an 'ioremapped' cookie.
+ */
+ up.line = 0;
+ up.type = PORT_16550;
+ up.iotype = UPIO_MEM;
+ up.mapbase = WRPPMC_UART16550_BASE;
+ up.membase = ioremap(up.mapbase, 8);
+ up.irq = WRPPMC_UART16550_IRQ;
+ up.uartclk = WRPPMC_UART16550_CLOCK;
+ up.flags = UPF_SKIP_TEST/* | UPF_BOOT_AUTOCONF */;
+ up.regshift = 0;
+
+ early_serial_setup(&up);
+}
+#endif
+
+void __init plat_setup(void)
+{
+ extern void wrppmc_time_init(void);
+ extern void wrppmc_timer_setup(struct irqaction *);
+ extern void wrppmc_machine_restart(char *command);
+ extern void wrppmc_machine_halt(void);
+ extern void wrppmc_machine_power_off(void);
+
+ _machine_restart = wrppmc_machine_restart;
+ _machine_halt = wrppmc_machine_halt;
+ pm_power_off = wrppmc_machine_power_off;
+
+ /* Use MIPS Count/Compare Timer */
+ board_time_init = wrppmc_time_init;
+ board_timer_setup = wrppmc_timer_setup;
+
+ /* This makes the operations of 'in/out[bwl]' to the
+ * physical address ( < KSEG0) can work via KSEG1
+ */
+ set_io_port_base(KSEG1);
+
+#ifdef CONFIG_SERIAL_8250
+ wrppmc_setup_serial();
+#endif
+}
+
+const char *get_system_type(void)
+{
+ return "Wind River PPMC (GT64120)";
+}
+
+/*
+ * Initializes basic routines and structures pointers, memory size (as
+ * given by the bios and saves the command line.
+ */
+void __init prom_init(void)
+{
+ mips_machgroup = MACH_GROUP_GALILEO;
+ mips_machtype = MACH_EV64120A;
+
+ add_memory_region(WRPPMC_SDRAM_SCS0_BASE,
WRPPMC_SDRAM_SCS0_SIZE, BOOT_MEM_RAM);
+ add_memory_region(WRPPMC_BOOTROM_BASE, WRPPMC_BOOTROM_SIZE,
BOOT_MEM_ROM_DATA);
+
+ wrppmc_early_printk("prom_init: GT64120 SDRAM Bank 0: 0x%x -
0x%08lx\n",
+ WRPPMC_SDRAM_SCS0_BASE, (WRPPMC_SDRAM_SCS0_BASE
+ WRPPMC_SDRAM_SCS0_SIZE));
+}
diff -urN linux-2.6.16.11/arch/mips/gt64120/wrppmc/time.c
linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/time.c
--- linux-2.6.16.11/arch/mips/gt64120/wrppmc/time.c 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/time.c
2006-05-05 16:39:32.000000000 +0800
@@ -0,0 +1,57 @@
+/*
+ * time.c: MIPS CPU Count/Compare timer hookup
+ *
+ * Author: Mark.Zhan, <rongkai.zhan@windriver.com>
+ *
+ * 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.
+ *
+ * Copyright (C) 1996, 1997, 2004 by Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (C) 2006, Wind River System Inc.
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/param.h> /* for HZ */
+#include <linux/irq.h>
+#include <linux/timex.h>
+#include <linux/interrupt.h>
+
+#include <asm/reboot.h>
+#include <asm/time.h>
+#include <asm/io.h>
+#include <asm/bootinfo.h>
+#include <asm/gt64120.h>
+
+#define WRPPMC_CPU_CLK_FREQ 40000000 /* 40MHZ */
+
+void __init wrppmc_timer_setup(struct irqaction *irq)
+{
+ /* Install ISR for timer interrupt */
+ setup_irq(WRPPMC_MIPS_TIMER_IRQ, irq);
+
+ /* to generate the first timer interrupt */
+ write_c0_compare(mips_hpt_frequency/HZ);
+ write_c0_count(0);
+}
+
+/*
+ * Estimate CPU frequency. Sets mips_hpt_frequency as a side-effect
+ *
+ * NOTE: We disable all GT64120 timers, and use MIPS processor internal
+ * timer as the source of kernel clock tick.
+ */
+void __init wrppmc_time_init(void)
+{
+ /* Disable GT64120 timers */
+ GT_WRITE(GT_TC_CONTROL_OFS, 0x00);
+ GT_WRITE(GT_TC0_OFS, 0x00);
+ GT_WRITE(GT_TC1_OFS, 0x00);
+ GT_WRITE(GT_TC2_OFS, 0x00);
+ GT_WRITE(GT_TC3_OFS, 0x00);
+
+ /* Use MIPS compare/count internal timer */
+ mips_hpt_frequency = WRPPMC_CPU_CLK_FREQ;
+}
diff -urN linux-2.6.16.11/arch/mips/Kconfig
linux-2.6.16.11-ppmc/arch/mips/Kconfig
--- linux-2.6.16.11/arch/mips/Kconfig 2006-04-25 04:20:24.000000000
+0800
+++ linux-2.6.16.11-ppmc/arch/mips/Kconfig 2006-05-05
10:53:40.000000000 +0800
@@ -326,6 +326,27 @@
This enables support for the MIPS Technologies SEAD evaluation
board.
+config WR_PPMC
+ bool "Support for Wind River PPMC board"
+ select IRQ_CPU
+ select BOOT_ELF32
+ select DMA_NONCOHERENT
+ select HW_HAS_PCI
+ select MIPS_GT64120
+ select SWAP_IO_SPACE
+ select SYS_HAS_CPU_MIPS32_R1
+ select SYS_HAS_CPU_MIPS32_R2
+ select SYS_HAS_CPU_MIPS64_R1
+ select SYS_HAS_CPU_NEVADA
+ select SYS_HAS_CPU_RM7000
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+ help
+ This enables support for the Wind River MIPS32 4KC PPMC
evaluation
+ board, which is based on GT64120 bridge chip.
+
config MIPS_SIM
bool 'Support for MIPS simulator (MIPSsim)'
select DMA_NONCOHERENT
diff -urN linux-2.6.16.11/arch/mips/Makefile
linux-2.6.16.11-ppmc/arch/mips/Makefile
--- linux-2.6.16.11/arch/mips/Makefile 2006-04-25 04:20:24.000000000
+0800
+++ linux-2.6.16.11-ppmc/arch/mips/Makefile 2006-05-05
12:42:16.000000000 +0800
@@ -419,6 +419,13 @@
load-$(CONFIG_MIPS_EV96100) += 0xffffffff80100000
#
+# Wind River PPMC Board (4KC + GT64120)
+#
+core-$(CONFIG_WR_PPMC) += arch/mips/gt64120/wrppmc/
+cflags-$(CONFIG_WR_PPMC) +=
-Iinclude/asm-mips/mach-wrppmc
+load-$(CONFIG_WR_PPMC) += 0xffffffff80100000
+
+#
# Globespan IVR eval board with QED 5231 CPU
#
core-$(CONFIG_ITE_BOARD_GEN) += arch/mips/ite-boards/generic/
diff -urN linux-2.6.16.11/arch/mips/pci/fixup-wrppmc.c
linux-2.6.16.11-ppmc/arch/mips/pci/fixup-wrppmc.c
--- linux-2.6.16.11/arch/mips/pci/fixup-wrppmc.c 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/pci/fixup-wrppmc.c 2006-05-05
16:40:01.000000000 +0800
@@ -0,0 +1,37 @@
+/*
+ * fixup-wrppmc.c: PPMC board specific PCI fixup
+ *
+ * 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.
+ *
+ * Copyright (C) 2006, Wind River Inc. Rongkai.zhan
(rongkai.zhan@windriver.com)
+ */
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <asm/gt64120.h>
+
+/* PCI interrupt pins */
+#define PCI_INTA 1
+#define PCI_INTB 2
+#define PCI_INTC 3
+#define PCI_INTD 4
+
+#define PCI_SLOT_MAXNR 32 /* Each PCI bus has 32 physical slots */
+
+static char pci_irq_tab[PCI_SLOT_MAXNR][5] __initdata = {
+ /* 0 INTA INTB INTC INTD */
+ [0] = {0, 0, 0, 0, 0}, /* Slot 0: GT64120 PCI bridge */
+ [6] = {0, WRPPMC_PCI_INTA, 0, 0, 0},
+};
+
+int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+ return pci_irq_tab[slot][pin];
+}
+
+/* Do platform specific device initialization at pci_enable_device()
time */
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+ return 0;
+}
diff -urN linux-2.6.16.11/arch/mips/pci/Makefile
linux-2.6.16.11-ppmc/arch/mips/pci/Makefile
--- linux-2.6.16.11/arch/mips/pci/Makefile 2006-04-25
04:20:24.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/pci/Makefile 2006-05-05
11:30:44.000000000 +0800
@@ -57,3 +57,4 @@
obj-$(CONFIG_TOSHIBA_RBTX4938) += fixup-tx4938.o ops-tx4938.o
obj-$(CONFIG_VICTOR_MPC30X) += fixup-mpc30x.o
obj-$(CONFIG_ZAO_CAPCELLA) += fixup-capcella.o
+obj-$(CONFIG_WR_PPMC) += fixup-wrppmc.o
diff -urN linux-2.6.16.11/include/asm-mips/mach-wrppmc/mach-gt64120.h
linux-2.6.16.11-ppmc/include/asm-mips/mach-wrppmc/mach-gt64120.h
--- linux-2.6.16.11/include/asm-mips/mach-wrppmc/mach-gt64120.h
1970-01-01 08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/include/asm-mips/mach-wrppmc/mach-gt64120.h
2006-05-05 16:56:33.000000000 +0800
@@ -0,0 +1,81 @@
+/*
+ * This is a direct copy of the ev96100.h file, with a global
+ * search and replace. The numbers are the same.
+ *
+ * The reason I'm duplicating this is so that the 64120/96100
+ * defines won't be confusing in the source code.
+ */
+#ifndef __ASM_MIPS_GT64120_H
+#define __ASM_MIPS_GT64120_H
+
+/*
+ * GT64120 config space base address
+ */
+extern unsigned long gt64120_base;
+
+#define GT64120_BASE (gt64120_base)
+
+/*
+ * This is the CPU physical memory map of PPMC Board:
+ *
+ * 0x00000000-0x03FFFFFF - 64MB SDRAM (SCS[0]#)
+ * 0x1C000000-0x1C000000 - LED (CS0)
+ * 0x1C800000-0x1C800007 - UART 16550 port (CS1)
+ * 0x1F000000-0x1F000000 - MailBox (CS3)
+ * 0x1FC00000-0x20000000 - 4MB Flash (BOOT CS)
+ */
+
+#define WRPPMC_SDRAM_SCS0_BASE 0x00000000
+#define WRPPMC_SDRAM_SCS0_SIZE 0x04000000
+
+#define WRPPMC_UART16550_BASE 0x1C800000
+#define WRPPMC_UART16550_CLOCK 3686400 /* 3.68MHZ */
+
+#define WRPPMC_LED_BASE 0x1C000000
+#define WRPPMC_MBOX_BASE 0x1F000000
+
+#define WRPPMC_BOOTROM_BASE 0x1FC00000
+#define WRPPMC_BOOTROM_SIZE 0x00400000 /* 4M Flash */
+
+#define WRPPMC_MIPS_TIMER_IRQ 7 /* MIPS compare/count timer interrupt
*/
+#define WRPPMC_UART16550_IRQ 6
+#define WRPPMC_PCI_INTA 3
+
+/*
+ * PCI Bus I/O and Memory resources allocation
+ *
+ * NOTE: We only have PCI_0 hose interface
+ */
+#define GT_PCI_MEM_BASE 0x13000000UL
+#define GT_PCI_MEM_SIZE 0x02000000UL
+#define GT_PCI_IO_BASE 0x11000000UL
+#define GT_PCI_IO_SIZE 0x02000000UL
+#define GT_ISA_IO_BASE PCI_IO_BASE
+
+/*
+ * PCI interrupts will come in on either the INTA or INTD interrups
lines,
+ * which are mapped to the #2 and #5 interrupt pins of the MIPS. On
our
+ * boards, they all either come in on IntD or they all come in on IntA,
they
+ * aren't mixed. There can be numerous PCI interrupts, so we keep a
list of the
+ * "requested" interrupt numbers and go through the list whenever we
get an
+ * IntA/D.
+ *
+ * Interrupts < 8 are directly wired to the processor; PCI INTA is 8
and
+ * INTD is 11.
+ */
+#define GT_TIMER 4
+#define GT_INTA 2
+#define GT_INTD 5
+
+/* define WRPPMC_EARLY_DEBUG to enable early output something to UART
*/
+#undef WRPPMC_EARLY_DEBUG
+
+#ifdef WRPPMC_EARLY_DEBUG
+extern void wrppmc_led_on(int mask);
+extern void wrppmc_led_off(int mask);
+extern void wrppmc_early_printk(const char *fmt, ...);
+#else
+#define wrppmc_early_printk(fmt, ...) do {} while (0)
+#endif /* WRPPMC_EARLY_DEBUG */
+
+#endif /* __ASM_MIPS_GT64120_H */
^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH 1/2] Wind River 4KC PPMC Eval Board Support
@ 2006-05-05 15:42 ` Zhan, Rongkai
0 siblings, 0 replies; 7+ messages in thread
From: Zhan, Rongkai @ 2006-05-05 15:42 UTC (permalink / raw)
To: linux-mips; +Cc: ralf
Hello,
Here is a patch to add the support for Wind River 4KC PPMC Evaluation
board, which is based on the GT64120 bridge chip.
Mark. Zhan
Signed-off-by: Rongkai.Zhan <Rongkai.zhan@windriver.com>
diff -urN linux-2.6.16.11/arch/mips/gt64120/wrppmc/int-handler.S
linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/int-handler.S
--- linux-2.6.16.11/arch/mips/gt64120/wrppmc/int-handler.S
1970-01-01 08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/int-handler.S
2006-05-05 16:38:12.000000000 +0800
@@ -0,0 +1,37 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 1995, 1996, 1997, 2003 by Ralf Baechle
+ * Copyright (C) Wind River System Inc. Rongkai.Zhan
<rongkai.zhan@windriver.com>
+ */
+#include <asm/asm.h>
+#include <asm/mipsregs.h>
+#include <asm/addrspace.h>
+#include <asm/regdef.h>
+#include <asm/stackframe.h>
+
+ .align 5
+ .set noat
+NESTED(handle_IRQ, PT_SIZE, sp)
+ SAVE_ALL
+ CLI # Important: mark KERNEL mode !
+
+ mfc0 t0, CP0_CAUSE # get pending interrupts
+ mfc0 t1, CP0_STATUS # get enabled interrupts
+ and t0, t0, t1 # get allowed interrupts
+ andi t0, t0, 0xFF00
+ beqz t0, 1f
+
+ move a0, sp # Prepare 'struct pt_regs *regs'
pointer
+ jal do_wrppmc_IRQ
+ nop
+ j ret_from_irq
+ nop
+
+ /* wrong alarm or masked ... */
+1: j spurious_interrupt
+ nop
+END(handle_IRQ)
+
diff -urN linux-2.6.16.11/arch/mips/gt64120/wrppmc/irq.c
linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/irq.c
--- linux-2.6.16.11/arch/mips/gt64120/wrppmc/irq.c 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/irq.c 2006-05-05
17:30:57.000000000 +0800
@@ -0,0 +1,76 @@
+/*
+ * irq.c: GT64120 Interrupt Controller
+ *
+ * Copyright (C) 2006, Wind River System Inc.
+ * Author: Rongkai.Zhan, <rongkai.zhan@windriver.com>
+ *
+ * This program is free software; you can redistribute it and/or
modify it
+ * under the terms of the GNU General Public License as published by
the
+ * Free Software Foundation; either version 2 of the License, or (at
your
+ * option) any later version.
+ */
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/kernel_stat.h>
+#include <linux/module.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/timex.h>
+#include <linux/slab.h>
+#include <linux/random.h>
+#include <linux/bitops.h>
+#include <asm/bootinfo.h>
+#include <asm/io.h>
+#include <asm/bitops.h>
+#include <asm/mipsregs.h>
+#include <asm/system.h>
+#include <asm/irq_cpu.h>
+#include <asm/gt64120.h>
+
+extern asmlinkage void handle_IRQ(void);
+
+asmlinkage void do_wrppmc_IRQ(struct pt_regs *regs)
+{
+ unsigned long pending;
+ int irq;
+
+ pending = read_c0_cause();
+ pending &= read_c0_status();
+ pending = (pending & 0xFF00) >> 8;
+ irq = ffs(pending) - 1;
+
+ do_IRQ(irq, regs);
+}
+
+/**
+ * Initialize GT64120 Interrupt Controller
+ */
+void gt64120_init_pic(void)
+{
+ /* clear CPU Interrupt Cause Registers */
+ GT_WRITE(GT_INTRCAUSE_OFS, (0x1F << 21));
+ GT_WRITE(GT_HINTRCAUSE_OFS, 0x00);
+
+ /* Disable all interrupts from GT64120 bridge chip */
+ GT_WRITE(GT_INTRMASK_OFS, 0x00);
+ GT_WRITE(GT_HINTRMASK_OFS, 0x00);
+ GT_WRITE(GT_PCI0_ICMASK_OFS, 0x00);
+ GT_WRITE(GT_PCI0_HICMASK_OFS, 0x00);
+}
+
+void __init arch_init_irq(void)
+{
+ /* enable all CPU interrupt bits. */
+ set_c0_status(ST0_IM); /* IE bit is still 0 */
+
+ /* Install MIPS Interrupt Trap Vector */
+ set_except_vector(0, handle_IRQ);
+
+ /* IRQ 0 - 7 are for MIPS common irq_cpu controller */
+ mips_cpu_irq_init(0);
+
+ gt64120_init_pic();
+}
diff -urN linux-2.6.16.11/arch/mips/gt64120/wrppmc/Makefile
linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/Makefile
--- linux-2.6.16.11/arch/mips/gt64120/wrppmc/Makefile 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/Makefile
2006-04-14 15:25:48.000000000 +0800
@@ -0,0 +1,14 @@
+#
+# 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.
+#
+# Copyright 2006 Wind River System, Inc.
+# Author: Rongkai.Zhan <rongkai.zhan@windriver.com>
+#
+# Makefile for the Wind River MIPS 4KC PPMC Eval Board
+#
+
+obj-y += int-handler.o irq.o reset.o setup.o time.o pci.o
+
+EXTRA_AFLAGS := $(CFLAGS)
diff -urN linux-2.6.16.11/arch/mips/gt64120/wrppmc/pci.c
linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/pci.c
--- linux-2.6.16.11/arch/mips/gt64120/wrppmc/pci.c 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/pci.c 2006-05-05
17:25:48.000000000 +0800
@@ -0,0 +1,53 @@
+/*
+ * pci.c: GT64120 PCI support.
+ *
+ * Copyright (C) 2006, Wind River System Inc. Rongkai.Zhan
<rongkai.zhan@windriver.com>
+ *
+ * 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.
+ */
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <asm/gt64120.h>
+
+extern struct pci_ops gt64120_pci_ops;
+
+static struct resource pci0_io_resource = {
+ .name = "pci_0 io",
+ .start = GT_PCI_IO_BASE,
+ .end = GT_PCI_IO_BASE + GT_PCI_IO_SIZE - 1,
+ .flags = IORESOURCE_IO,
+};
+
+static struct resource pci0_mem_resource = {
+ .name = "pci_0 memory",
+ .start = GT_PCI_MEM_BASE,
+ .end = GT_PCI_MEM_BASE + GT_PCI_MEM_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct pci_controller hose_0 = {
+ .pci_ops = >64120_pci_ops,
+ .io_resource = &pci0_io_resource,
+ .mem_resource = &pci0_mem_resource,
+};
+
+static int __init gt64120_pci_init(void)
+{
+ u32 tmp;
+
+ tmp = GT_READ(GT_PCI0_CMD_OFS); /* Huh??? -- Ralf */
+ tmp = GT_READ(GT_PCI0_BARE_OFS);
+
+ /* reset the whole PCI I/O space range */
+ ioport_resource.start = GT_PCI_IO_BASE;
+ ioport_resource.end = GT_PCI_IO_BASE + GT_PCI_IO_SIZE - 1;
+
+ register_pci_controller(&hose_0);
+ return 0;
+}
+
+arch_initcall(gt64120_pci_init);
diff -urN linux-2.6.16.11/arch/mips/gt64120/wrppmc/reset.c
linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/reset.c
--- linux-2.6.16.11/arch/mips/gt64120/wrppmc/reset.c 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/reset.c
2006-04-13 22:24:56.000000000 +0800
@@ -0,0 +1,50 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 1997 Ralf Baechle
+ */
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/processor.h>
+#include <asm/reboot.h>
+#include <asm/system.h>
+#include <asm/cacheflush.h>
+
+void wrppmc_machine_restart(char *command)
+{
+ /*
+ * Ouch, we're still alive ... This time we take the silver
bullet ...
+ * ... and find that we leave the hardware in a state in which
the
+ * kernel in the flush locks up somewhen during of after the PCI
+ * detection stuff.
+ */
+ local_irq_disable();
+ set_c0_status(ST0_BEV | ST0_ERL);
+ change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED);
+ flush_cache_all();
+ write_c0_wired(0);
+ __asm__ __volatile__("jr\t%0"::"r"(0xbfc00000));
+}
+
+void wrppmc_machine_halt(void)
+{
+ local_irq_disable();
+
+ printk(KERN_NOTICE "You can safely turn off the power\n");
+ while (1) {
+ __asm__(
+ ".set\tmips3\n\t"
+ "wait\n\t"
+ ".set\tmips0"
+ );
+ }
+}
+
+void wrppmc_machine_power_off(void)
+{
+ wrppmc_machine_halt();
+}
diff -urN linux-2.6.16.11/arch/mips/gt64120/wrppmc/setup.c
linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/setup.c
--- linux-2.6.16.11/arch/mips/gt64120/wrppmc/setup.c 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/setup.c
2006-05-05 17:08:27.000000000 +0800
@@ -0,0 +1,173 @@
+/*
+ * setup.c: Setup pointers to hardware dependent routines.
+ *
+ * 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.
+ *
+ * Copyright (C) 1996, 1997, 2004 by Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (C) 2006, Wind River System Inc. Rongkai.zhan
<rongkai.zhan@windriver.com>
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/tty.h>
+#include <linux/serial.h>
+#include <linux/serial_core.h>
+#include <linux/pm.h>
+
+#include <asm/io.h>
+#include <asm/bootinfo.h>
+#include <asm/reboot.h>
+#include <asm/time.h>
+#include <asm/gt64120.h>
+
+unsigned long gt64120_base = KSEG1ADDR(0x14000000);
+
+#ifdef WRPPMC_EARLY_DEBUG
+
+static volatile unsigned char * wrppmc_led = \
+ (volatile unsigned char *)KSEG1ADDR(WRPPMC_LED_BASE);
+
+/*
+ * PPMC LED control register:
+ * -) bit[0] controls DS1 LED (1 - OFF, 0 - ON)
+ * -) bit[1] controls DS2 LED (1 - OFF, 0 - ON)
+ * -) bit[2] controls DS4 LED (1 - OFF, 0 - ON)
+ */
+void wrppmc_led_on(int mask)
+{
+ unsigned char value = *wrppmc_led;
+
+ value &= (0xF8 | mask);
+ *wrppmc_led = value;
+}
+
+/* If mask = 0, turn off all LEDs */
+void wrppmc_led_off(int mask)
+{
+ unsigned char value = *wrppmc_led;
+
+ value |= (0x7 & mask);
+ *wrppmc_led = value;
+}
+
+/*
+ * We assume that bootloader has initialized UART16550 correctly
+ */
+void __init wrppmc_early_putc(char ch)
+{
+ static volatile unsigned char *wrppmc_uart = \
+ (volatile unsigned char
*)KSEG1ADDR(WRPPMC_UART16550_BASE);
+ unsigned char value;
+
+ /* Wait until Transmit-Holding-Register is empty */
+ while (1) {
+ value = *(wrppmc_uart + 5);
+ if (value & 0x20)
+ break;
+ }
+
+ *wrppmc_uart = ch;
+}
+
+void __init wrppmc_early_printk(const char *fmt, ...)
+{
+ static char pbuf[256] = {'\0', };
+ char *ch = pbuf;
+ va_list args;
+ unsigned int i;
+
+ memset(pbuf, 0, 256);
+ va_start(args, fmt);
+ i = vsprintf(pbuf, fmt, args);
+ va_end(args);
+
+ /* Print the string */
+ while (*ch != '\0') {
+ wrppmc_early_putc(*ch);
+ /* if print '\n', also print '\r' */
+ if (*ch++ == '\n')
+ wrppmc_early_putc('\r');
+ }
+}
+#endif /* WRPPMC_EARLY_DEBUG */
+
+unsigned long __init prom_free_prom_memory(void)
+{
+ return 0;
+}
+
+#ifdef CONFIG_SERIAL_8250
+static void wrppmc_setup_serial(void)
+{
+ struct uart_port up;
+
+ memset(&up, 0x00, sizeof(struct uart_port));
+
+ /*
+ * A note about mapbase/membase
+ * -) mapbase is the physical address of the IO port.
+ * -) membase is an 'ioremapped' cookie.
+ */
+ up.line = 0;
+ up.type = PORT_16550;
+ up.iotype = UPIO_MEM;
+ up.mapbase = WRPPMC_UART16550_BASE;
+ up.membase = ioremap(up.mapbase, 8);
+ up.irq = WRPPMC_UART16550_IRQ;
+ up.uartclk = WRPPMC_UART16550_CLOCK;
+ up.flags = UPF_SKIP_TEST/* | UPF_BOOT_AUTOCONF */;
+ up.regshift = 0;
+
+ early_serial_setup(&up);
+}
+#endif
+
+void __init plat_setup(void)
+{
+ extern void wrppmc_time_init(void);
+ extern void wrppmc_timer_setup(struct irqaction *);
+ extern void wrppmc_machine_restart(char *command);
+ extern void wrppmc_machine_halt(void);
+ extern void wrppmc_machine_power_off(void);
+
+ _machine_restart = wrppmc_machine_restart;
+ _machine_halt = wrppmc_machine_halt;
+ pm_power_off = wrppmc_machine_power_off;
+
+ /* Use MIPS Count/Compare Timer */
+ board_time_init = wrppmc_time_init;
+ board_timer_setup = wrppmc_timer_setup;
+
+ /* This makes the operations of 'in/out[bwl]' to the
+ * physical address ( < KSEG0) can work via KSEG1
+ */
+ set_io_port_base(KSEG1);
+
+#ifdef CONFIG_SERIAL_8250
+ wrppmc_setup_serial();
+#endif
+}
+
+const char *get_system_type(void)
+{
+ return "Wind River PPMC (GT64120)";
+}
+
+/*
+ * Initializes basic routines and structures pointers, memory size (as
+ * given by the bios and saves the command line.
+ */
+void __init prom_init(void)
+{
+ mips_machgroup = MACH_GROUP_GALILEO;
+ mips_machtype = MACH_EV64120A;
+
+ add_memory_region(WRPPMC_SDRAM_SCS0_BASE,
WRPPMC_SDRAM_SCS0_SIZE, BOOT_MEM_RAM);
+ add_memory_region(WRPPMC_BOOTROM_BASE, WRPPMC_BOOTROM_SIZE,
BOOT_MEM_ROM_DATA);
+
+ wrppmc_early_printk("prom_init: GT64120 SDRAM Bank 0: 0x%x -
0x%08lx\n",
+ WRPPMC_SDRAM_SCS0_BASE, (WRPPMC_SDRAM_SCS0_BASE
+ WRPPMC_SDRAM_SCS0_SIZE));
+}
diff -urN linux-2.6.16.11/arch/mips/gt64120/wrppmc/time.c
linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/time.c
--- linux-2.6.16.11/arch/mips/gt64120/wrppmc/time.c 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/time.c
2006-05-05 16:39:32.000000000 +0800
@@ -0,0 +1,57 @@
+/*
+ * time.c: MIPS CPU Count/Compare timer hookup
+ *
+ * Author: Mark.Zhan, <rongkai.zhan@windriver.com>
+ *
+ * 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.
+ *
+ * Copyright (C) 1996, 1997, 2004 by Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (C) 2006, Wind River System Inc.
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/param.h> /* for HZ */
+#include <linux/irq.h>
+#include <linux/timex.h>
+#include <linux/interrupt.h>
+
+#include <asm/reboot.h>
+#include <asm/time.h>
+#include <asm/io.h>
+#include <asm/bootinfo.h>
+#include <asm/gt64120.h>
+
+#define WRPPMC_CPU_CLK_FREQ 40000000 /* 40MHZ */
+
+void __init wrppmc_timer_setup(struct irqaction *irq)
+{
+ /* Install ISR for timer interrupt */
+ setup_irq(WRPPMC_MIPS_TIMER_IRQ, irq);
+
+ /* to generate the first timer interrupt */
+ write_c0_compare(mips_hpt_frequency/HZ);
+ write_c0_count(0);
+}
+
+/*
+ * Estimate CPU frequency. Sets mips_hpt_frequency as a side-effect
+ *
+ * NOTE: We disable all GT64120 timers, and use MIPS processor internal
+ * timer as the source of kernel clock tick.
+ */
+void __init wrppmc_time_init(void)
+{
+ /* Disable GT64120 timers */
+ GT_WRITE(GT_TC_CONTROL_OFS, 0x00);
+ GT_WRITE(GT_TC0_OFS, 0x00);
+ GT_WRITE(GT_TC1_OFS, 0x00);
+ GT_WRITE(GT_TC2_OFS, 0x00);
+ GT_WRITE(GT_TC3_OFS, 0x00);
+
+ /* Use MIPS compare/count internal timer */
+ mips_hpt_frequency = WRPPMC_CPU_CLK_FREQ;
+}
diff -urN linux-2.6.16.11/arch/mips/Kconfig
linux-2.6.16.11-ppmc/arch/mips/Kconfig
--- linux-2.6.16.11/arch/mips/Kconfig 2006-04-25 04:20:24.000000000
+0800
+++ linux-2.6.16.11-ppmc/arch/mips/Kconfig 2006-05-05
10:53:40.000000000 +0800
@@ -326,6 +326,27 @@
This enables support for the MIPS Technologies SEAD evaluation
board.
+config WR_PPMC
+ bool "Support for Wind River PPMC board"
+ select IRQ_CPU
+ select BOOT_ELF32
+ select DMA_NONCOHERENT
+ select HW_HAS_PCI
+ select MIPS_GT64120
+ select SWAP_IO_SPACE
+ select SYS_HAS_CPU_MIPS32_R1
+ select SYS_HAS_CPU_MIPS32_R2
+ select SYS_HAS_CPU_MIPS64_R1
+ select SYS_HAS_CPU_NEVADA
+ select SYS_HAS_CPU_RM7000
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+ help
+ This enables support for the Wind River MIPS32 4KC PPMC
evaluation
+ board, which is based on GT64120 bridge chip.
+
config MIPS_SIM
bool 'Support for MIPS simulator (MIPSsim)'
select DMA_NONCOHERENT
diff -urN linux-2.6.16.11/arch/mips/Makefile
linux-2.6.16.11-ppmc/arch/mips/Makefile
--- linux-2.6.16.11/arch/mips/Makefile 2006-04-25 04:20:24.000000000
+0800
+++ linux-2.6.16.11-ppmc/arch/mips/Makefile 2006-05-05
12:42:16.000000000 +0800
@@ -419,6 +419,13 @@
load-$(CONFIG_MIPS_EV96100) += 0xffffffff80100000
#
+# Wind River PPMC Board (4KC + GT64120)
+#
+core-$(CONFIG_WR_PPMC) += arch/mips/gt64120/wrppmc/
+cflags-$(CONFIG_WR_PPMC) +=
-Iinclude/asm-mips/mach-wrppmc
+load-$(CONFIG_WR_PPMC) += 0xffffffff80100000
+
+#
# Globespan IVR eval board with QED 5231 CPU
#
core-$(CONFIG_ITE_BOARD_GEN) += arch/mips/ite-boards/generic/
diff -urN linux-2.6.16.11/arch/mips/pci/fixup-wrppmc.c
linux-2.6.16.11-ppmc/arch/mips/pci/fixup-wrppmc.c
--- linux-2.6.16.11/arch/mips/pci/fixup-wrppmc.c 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/pci/fixup-wrppmc.c 2006-05-05
16:40:01.000000000 +0800
@@ -0,0 +1,37 @@
+/*
+ * fixup-wrppmc.c: PPMC board specific PCI fixup
+ *
+ * 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.
+ *
+ * Copyright (C) 2006, Wind River Inc. Rongkai.zhan
(rongkai.zhan@windriver.com)
+ */
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <asm/gt64120.h>
+
+/* PCI interrupt pins */
+#define PCI_INTA 1
+#define PCI_INTB 2
+#define PCI_INTC 3
+#define PCI_INTD 4
+
+#define PCI_SLOT_MAXNR 32 /* Each PCI bus has 32 physical slots */
+
+static char pci_irq_tab[PCI_SLOT_MAXNR][5] __initdata = {
+ /* 0 INTA INTB INTC INTD */
+ [0] = {0, 0, 0, 0, 0}, /* Slot 0: GT64120 PCI bridge */
+ [6] = {0, WRPPMC_PCI_INTA, 0, 0, 0},
+};
+
+int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+ return pci_irq_tab[slot][pin];
+}
+
+/* Do platform specific device initialization at pci_enable_device()
time */
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+ return 0;
+}
diff -urN linux-2.6.16.11/arch/mips/pci/Makefile
linux-2.6.16.11-ppmc/arch/mips/pci/Makefile
--- linux-2.6.16.11/arch/mips/pci/Makefile 2006-04-25
04:20:24.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/pci/Makefile 2006-05-05
11:30:44.000000000 +0800
@@ -57,3 +57,4 @@
obj-$(CONFIG_TOSHIBA_RBTX4938) += fixup-tx4938.o ops-tx4938.o
obj-$(CONFIG_VICTOR_MPC30X) += fixup-mpc30x.o
obj-$(CONFIG_ZAO_CAPCELLA) += fixup-capcella.o
+obj-$(CONFIG_WR_PPMC) += fixup-wrppmc.o
diff -urN linux-2.6.16.11/include/asm-mips/mach-wrppmc/mach-gt64120.h
linux-2.6.16.11-ppmc/include/asm-mips/mach-wrppmc/mach-gt64120.h
--- linux-2.6.16.11/include/asm-mips/mach-wrppmc/mach-gt64120.h
1970-01-01 08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/include/asm-mips/mach-wrppmc/mach-gt64120.h
2006-05-05 16:56:33.000000000 +0800
@@ -0,0 +1,81 @@
+/*
+ * This is a direct copy of the ev96100.h file, with a global
+ * search and replace. The numbers are the same.
+ *
+ * The reason I'm duplicating this is so that the 64120/96100
+ * defines won't be confusing in the source code.
+ */
+#ifndef __ASM_MIPS_GT64120_H
+#define __ASM_MIPS_GT64120_H
+
+/*
+ * GT64120 config space base address
+ */
+extern unsigned long gt64120_base;
+
+#define GT64120_BASE (gt64120_base)
+
+/*
+ * This is the CPU physical memory map of PPMC Board:
+ *
+ * 0x00000000-0x03FFFFFF - 64MB SDRAM (SCS[0]#)
+ * 0x1C000000-0x1C000000 - LED (CS0)
+ * 0x1C800000-0x1C800007 - UART 16550 port (CS1)
+ * 0x1F000000-0x1F000000 - MailBox (CS3)
+ * 0x1FC00000-0x20000000 - 4MB Flash (BOOT CS)
+ */
+
+#define WRPPMC_SDRAM_SCS0_BASE 0x00000000
+#define WRPPMC_SDRAM_SCS0_SIZE 0x04000000
+
+#define WRPPMC_UART16550_BASE 0x1C800000
+#define WRPPMC_UART16550_CLOCK 3686400 /* 3.68MHZ */
+
+#define WRPPMC_LED_BASE 0x1C000000
+#define WRPPMC_MBOX_BASE 0x1F000000
+
+#define WRPPMC_BOOTROM_BASE 0x1FC00000
+#define WRPPMC_BOOTROM_SIZE 0x00400000 /* 4M Flash */
+
+#define WRPPMC_MIPS_TIMER_IRQ 7 /* MIPS compare/count timer interrupt
*/
+#define WRPPMC_UART16550_IRQ 6
+#define WRPPMC_PCI_INTA 3
+
+/*
+ * PCI Bus I/O and Memory resources allocation
+ *
+ * NOTE: We only have PCI_0 hose interface
+ */
+#define GT_PCI_MEM_BASE 0x13000000UL
+#define GT_PCI_MEM_SIZE 0x02000000UL
+#define GT_PCI_IO_BASE 0x11000000UL
+#define GT_PCI_IO_SIZE 0x02000000UL
+#define GT_ISA_IO_BASE PCI_IO_BASE
+
+/*
+ * PCI interrupts will come in on either the INTA or INTD interrups
lines,
+ * which are mapped to the #2 and #5 interrupt pins of the MIPS. On
our
+ * boards, they all either come in on IntD or they all come in on IntA,
they
+ * aren't mixed. There can be numerous PCI interrupts, so we keep a
list of the
+ * "requested" interrupt numbers and go through the list whenever we
get an
+ * IntA/D.
+ *
+ * Interrupts < 8 are directly wired to the processor; PCI INTA is 8
and
+ * INTD is 11.
+ */
+#define GT_TIMER 4
+#define GT_INTA 2
+#define GT_INTD 5
+
+/* define WRPPMC_EARLY_DEBUG to enable early output something to UART
*/
+#undef WRPPMC_EARLY_DEBUG
+
+#ifdef WRPPMC_EARLY_DEBUG
+extern void wrppmc_led_on(int mask);
+extern void wrppmc_led_off(int mask);
+extern void wrppmc_early_printk(const char *fmt, ...);
+#else
+#define wrppmc_early_printk(fmt, ...) do {} while (0)
+#endif /* WRPPMC_EARLY_DEBUG */
+
+#endif /* __ASM_MIPS_GT64120_H */
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH 1/2] Wind River 4KC PPMC Eval Board Support
2006-05-05 15:42 ` Zhan, Rongkai
(?)
@ 2006-05-05 16:07 ` Ralf Baechle
-1 siblings, 0 replies; 7+ messages in thread
From: Ralf Baechle @ 2006-05-05 16:07 UTC (permalink / raw)
To: Zhan, Rongkai; +Cc: linux-mips
On Fri, May 05, 2006 at 05:42:04PM +0200, Zhan, Rongkai wrote:
> Here is a patch to add the support for Wind River 4KC PPMC Evaluation
> board, which is based on the GT64120 bridge chip.
Standard problem: This patch has line-wrapped lines so can't be applied ...
> 1970-01-01 08:00:00.000000000 +0800
> +++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/int-handler.S
> 2006-05-05 16:38:12.000000000 +0800
> @@ -0,0 +1,37 @@
> +/*
> + * 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.
> + *
> + * Copyright (C) 1995, 1996, 1997, 2003 by Ralf Baechle
> + * Copyright (C) Wind River System Inc. Rongkai.Zhan
> <rongkai.zhan@windriver.com>
> + */
> +#include <asm/asm.h>
> +#include <asm/mipsregs.h>
> +#include <asm/addrspace.h>
> +#include <asm/regdef.h>
> +#include <asm/stackframe.h>
> +
> + .align 5
> + .set noat
> +NESTED(handle_IRQ, PT_SIZE, sp)
> + SAVE_ALL
> + CLI # Important: mark KERNEL mode !
> +
> + mfc0 t0, CP0_CAUSE # get pending interrupts
> + mfc0 t1, CP0_STATUS # get enabled interrupts
> + and t0, t0, t1 # get allowed interrupts
> + andi t0, t0, 0xFF00
> + beqz t0, 1f
> +
> + move a0, sp # Prepare 'struct pt_regs *regs'
> pointer
> + jal do_wrppmc_IRQ
> + nop
> + j ret_from_irq
> + nop
> +
> + /* wrong alarm or masked ... */
> +1: j spurious_interrupt
> + nop
> +END(handle_IRQ)
Changeset e4ac58afdfac792c0583af30dbd9eae53e24c78b rewrites all interrupt
handlers from assembler to C, so your patche does no longer work. Can you
create a patch against the master branch, please?
> + printk(KERN_NOTICE "You can safely turn off the power\n");
This looks sooo windowsy ;-)
Ralf
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH 1/2] Wind River 4KC PPMC Eval Board Support
@ 2006-05-06 9:04 Mark.Zhan
2006-05-09 16:41 ` Ralf Baechle
0 siblings, 1 reply; 7+ messages in thread
From: Mark.Zhan @ 2006-05-06 9:04 UTC (permalink / raw)
To: linux-mips; +Cc: ralf
Hi Ralf,
According to your comments, I re-create the patch. Hopefully, no line-wrapped problems:-)
Patch 1 and 2 in the original mails are concatenated into one patch in this mail.
Best Regards,
Mark.Zhan
Signed-off-by: Rongkai.Zhan <rongkai.zhan@windriver.com>
----
diff -uprN linux-2.6.16.11/arch/mips/configs/wrppmc_defconfig linux-2.6.16.11-ppmc/arch/mips/configs/wrppmc_defconfig
--- linux-2.6.16.11/arch/mips/configs/wrppmc_defconfig 1970-01-01 08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/configs/wrppmc_defconfig 2006-05-05 17:11:22.000000000 +0800
@@ -0,0 +1,801 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.16.11
+# Fri May 5 17:11:22 2006
+#
+CONFIG_MIPS=y
+
+#
+# Machine selection
+#
+# CONFIG_MIPS_MTX1 is not set
+# CONFIG_MIPS_BOSPORUS is not set
+# CONFIG_MIPS_PB1000 is not set
+# CONFIG_MIPS_PB1100 is not set
+# CONFIG_MIPS_PB1500 is not set
+# CONFIG_MIPS_PB1550 is not set
+# CONFIG_MIPS_PB1200 is not set
+# CONFIG_MIPS_DB1000 is not set
+# CONFIG_MIPS_DB1100 is not set
+# CONFIG_MIPS_DB1500 is not set
+# CONFIG_MIPS_DB1550 is not set
+# CONFIG_MIPS_DB1200 is not set
+# CONFIG_MIPS_MIRAGE is not set
+# CONFIG_MIPS_COBALT is not set
+# CONFIG_MACH_DECSTATION is not set
+# CONFIG_MIPS_EV64120 is not set
+# CONFIG_MIPS_EV96100 is not set
+# CONFIG_MIPS_IVR is not set
+# CONFIG_MIPS_ITE8172 is not set
+# CONFIG_MACH_JAZZ is not set
+# CONFIG_LASAT is not set
+# CONFIG_MIPS_ATLAS is not set
+# CONFIG_MIPS_MALTA is not set
+# CONFIG_MIPS_SEAD is not set
+CONFIG_WR_PPMC=y
+# CONFIG_MIPS_SIM is not set
+# CONFIG_MOMENCO_JAGUAR_ATX is not set
+# CONFIG_MOMENCO_OCELOT is not set
+# CONFIG_MOMENCO_OCELOT_3 is not set
+# CONFIG_MOMENCO_OCELOT_C is not set
+# CONFIG_MOMENCO_OCELOT_G is not set
+# CONFIG_MIPS_XXS1500 is not set
+# CONFIG_PNX8550_V2PCI is not set
+# CONFIG_PNX8550_JBS is not set
+# CONFIG_DDB5074 is not set
+# CONFIG_DDB5476 is not set
+# CONFIG_DDB5477 is not set
+# CONFIG_MACH_VR41XX is not set
+# CONFIG_PMC_YOSEMITE is not set
+# CONFIG_QEMU is not set
+# CONFIG_SGI_IP22 is not set
+# CONFIG_SGI_IP27 is not set
+# CONFIG_SGI_IP32 is not set
+# CONFIG_SIBYTE_BIGSUR is not set
+# CONFIG_SIBYTE_SWARM is not set
+# CONFIG_SIBYTE_SENTOSA is not set
+# CONFIG_SIBYTE_RHONE is not set
+# CONFIG_SIBYTE_CARMEL is not set
+# CONFIG_SIBYTE_PTSWARM is not set
+# CONFIG_SIBYTE_LITTLESUR is not set
+# CONFIG_SIBYTE_CRHINE is not set
+# CONFIG_SIBYTE_CRHONE is not set
+# CONFIG_SNI_RM200_PCI is not set
+# CONFIG_TOSHIBA_JMR3927 is not set
+# CONFIG_TOSHIBA_RBTX4927 is not set
+# CONFIG_TOSHIBA_RBTX4938 is not set
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_DMA_NONCOHERENT=y
+CONFIG_DMA_NEED_PCI_MAP_STATE=y
+CONFIG_CPU_BIG_ENDIAN=y
+# CONFIG_CPU_LITTLE_ENDIAN is not set
+CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y
+CONFIG_SYS_SUPPORTS_LITTLE_ENDIAN=y
+CONFIG_IRQ_CPU=y
+CONFIG_MIPS_GT64120=y
+CONFIG_SWAP_IO_SPACE=y
+CONFIG_BOOT_ELF32=y
+CONFIG_MIPS_L1_CACHE_SHIFT=5
+
+#
+# CPU selection
+#
+CONFIG_CPU_MIPS32_R1=y
+# CONFIG_CPU_MIPS32_R2 is not set
+# CONFIG_CPU_MIPS64_R1 is not set
+# CONFIG_CPU_MIPS64_R2 is not set
+# CONFIG_CPU_R3000 is not set
+# CONFIG_CPU_TX39XX is not set
+# CONFIG_CPU_VR41XX is not set
+# CONFIG_CPU_R4300 is not set
+# CONFIG_CPU_R4X00 is not set
+# CONFIG_CPU_TX49XX is not set
+# CONFIG_CPU_R5000 is not set
+# CONFIG_CPU_R5432 is not set
+# CONFIG_CPU_R6000 is not set
+# CONFIG_CPU_NEVADA is not set
+# CONFIG_CPU_R8000 is not set
+# CONFIG_CPU_R10000 is not set
+# CONFIG_CPU_RM7000 is not set
+# CONFIG_CPU_RM9000 is not set
+# CONFIG_CPU_SB1 is not set
+CONFIG_SYS_HAS_CPU_MIPS32_R1=y
+CONFIG_SYS_HAS_CPU_MIPS32_R2=y
+CONFIG_SYS_HAS_CPU_MIPS64_R1=y
+CONFIG_SYS_HAS_CPU_NEVADA=y
+CONFIG_SYS_HAS_CPU_RM7000=y
+CONFIG_CPU_MIPS32=y
+CONFIG_CPU_MIPSR1=y
+CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
+CONFIG_SYS_SUPPORTS_64BIT_KERNEL=y
+CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y
+
+#
+# Kernel type
+#
+CONFIG_32BIT=y
+# CONFIG_64BIT is not set
+CONFIG_PAGE_SIZE_4KB=y
+# CONFIG_PAGE_SIZE_8KB is not set
+# CONFIG_PAGE_SIZE_16KB is not set
+# CONFIG_PAGE_SIZE_64KB is not set
+CONFIG_CPU_HAS_PREFETCH=y
+# CONFIG_MIPS_MT is not set
+# CONFIG_64BIT_PHYS_ADDR is not set
+# CONFIG_CPU_ADVANCED is not set
+CONFIG_CPU_HAS_LLSC=y
+CONFIG_CPU_HAS_SYNC=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_CPU_SUPPORTS_HIGHMEM=y
+CONFIG_ARCH_FLATMEM_ENABLE=y
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4
+CONFIG_PREEMPT_NONE=y
+# CONFIG_PREEMPT_VOLUNTARY is not set
+# CONFIG_PREEMPT is not set
+
+#
+# Code maturity level options
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+
+#
+# General setup
+#
+CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
+# CONFIG_SWAP is not set
+CONFIG_SYSVIPC=y
+# CONFIG_POSIX_MQUEUE is not set
+CONFIG_BSD_PROCESS_ACCT=y
+# CONFIG_BSD_PROCESS_ACCT_V3 is not set
+CONFIG_SYSCTL=y
+# CONFIG_AUDIT is not set
+# CONFIG_IKCONFIG is not set
+CONFIG_INITRAMFS_SOURCE=""
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_EMBEDDED=y
+CONFIG_KALLSYMS=y
+CONFIG_KALLSYMS_EXTRA_PASS=y
+CONFIG_HOTPLUG=y
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+CONFIG_BASE_FULL=y
+CONFIG_FUTEX=y
+# CONFIG_EPOLL is not set
+CONFIG_SHMEM=y
+CONFIG_CC_ALIGN_FUNCTIONS=0
+CONFIG_CC_ALIGN_LABELS=0
+CONFIG_CC_ALIGN_LOOPS=0
+CONFIG_CC_ALIGN_JUMPS=0
+CONFIG_SLAB=y
+# CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=0
+# CONFIG_SLOB is not set
+
+#
+# Loadable module support
+#
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_MODULE_FORCE_UNLOAD is not set
+CONFIG_OBSOLETE_MODPARM=y
+CONFIG_MODVERSIONS=y
+CONFIG_MODULE_SRCVERSION_ALL=y
+# CONFIG_KMOD is not set
+
+#
+# Block layer
+#
+# CONFIG_LBD is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+CONFIG_IOSCHED_AS=y
+CONFIG_IOSCHED_DEADLINE=y
+CONFIG_IOSCHED_CFQ=y
+CONFIG_DEFAULT_AS=y
+# CONFIG_DEFAULT_DEADLINE is not set
+# CONFIG_DEFAULT_CFQ is not set
+# CONFIG_DEFAULT_NOOP is not set
+CONFIG_DEFAULT_IOSCHED="anticipatory"
+
+#
+# Bus options (PCI, PCMCIA, EISA, ISA, TC)
+#
+CONFIG_HW_HAS_PCI=y
+CONFIG_PCI=y
+CONFIG_PCI_LEGACY_PROC=y
+CONFIG_MMU=y
+
+#
+# PCCARD (PCMCIA/CardBus) support
+#
+# CONFIG_PCCARD is not set
+
+#
+# PCI Hotplug Support
+#
+CONFIG_HOTPLUG_PCI=y
+# CONFIG_HOTPLUG_PCI_FAKE is not set
+# CONFIG_HOTPLUG_PCI_CPCI is not set
+# CONFIG_HOTPLUG_PCI_SHPC is not set
+
+#
+# Executable file formats
+#
+CONFIG_BINFMT_ELF=y
+CONFIG_BINFMT_MISC=y
+CONFIG_TRAD_SIGNALS=y
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+# CONFIG_NETDEBUG is not set
+CONFIG_PACKET=y
+CONFIG_PACKET_MMAP=y
+CONFIG_UNIX=y
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_IP_PNP_BOOTP=y
+CONFIG_IP_PNP_RARP=y
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+CONFIG_IP_MROUTE=y
+# CONFIG_IP_PIMSM_V1 is not set
+# CONFIG_IP_PIMSM_V2 is not set
+CONFIG_ARPD=y
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_TUNNEL is not set
+CONFIG_INET_DIAG=y
+CONFIG_INET_TCP_DIAG=y
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_BIC=y
+# CONFIG_IPV6 is not set
+# CONFIG_NETFILTER is not set
+
+#
+# DCCP Configuration (EXPERIMENTAL)
+#
+# CONFIG_IP_DCCP is not set
+
+#
+# SCTP Configuration (EXPERIMENTAL)
+#
+# CONFIG_IP_SCTP is not set
+
+#
+# TIPC Configuration (EXPERIMENTAL)
+#
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_NET_DIVERT is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+
+#
+# QoS and/or fair queueing
+#
+# CONFIG_NET_SCHED is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_IEEE80211 is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_STANDALONE=y
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+# CONFIG_FW_LOADER is not set
+
+#
+# Connector - unified userspace <-> kernelspace linker
+#
+# CONFIG_CONNECTOR is not set
+
+#
+# Memory Technology Devices (MTD)
+#
+# CONFIG_MTD is not set
+
+#
+# Parallel port support
+#
+# CONFIG_PARPORT is not set
+
+#
+# Plug and Play support
+#
+
+#
+# Block devices
+#
+# CONFIG_BLK_CPQ_DA is not set
+# CONFIG_BLK_CPQ_CISS_DA is not set
+# CONFIG_BLK_DEV_DAC960 is not set
+# CONFIG_BLK_DEV_UMEM is not set
+# CONFIG_BLK_DEV_COW_COMMON is not set
+# CONFIG_BLK_DEV_LOOP is not set
+# CONFIG_BLK_DEV_NBD is not set
+# CONFIG_BLK_DEV_SX8 is not set
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
+
+#
+# ATA/ATAPI/MFM/RLL support
+#
+# CONFIG_IDE is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+# CONFIG_SCSI is not set
+
+#
+# Multi-device support (RAID and LVM)
+#
+# CONFIG_MD is not set
+
+#
+# Fusion MPT device support
+#
+# CONFIG_FUSION is not set
+
+#
+# IEEE 1394 (FireWire) support
+#
+# CONFIG_IEEE1394 is not set
+
+#
+# I2O device support
+#
+# CONFIG_I2O is not set
+
+#
+# Network device support
+#
+CONFIG_NETDEVICES=y
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+
+#
+# ARCnet devices
+#
+# CONFIG_ARCNET is not set
+
+#
+# PHY device support
+#
+CONFIG_PHYLIB=y
+
+#
+# MII PHY device drivers
+#
+# CONFIG_MARVELL_PHY is not set
+# CONFIG_DAVICOM_PHY is not set
+# CONFIG_QSEMI_PHY is not set
+# CONFIG_LXT_PHY is not set
+# CONFIG_CICADA_PHY is not set
+
+#
+# Ethernet (10 or 100Mbit)
+#
+CONFIG_NET_ETHERNET=y
+CONFIG_MII=y
+# CONFIG_HAPPYMEAL is not set
+# CONFIG_SUNGEM is not set
+# CONFIG_CASSINI is not set
+# CONFIG_NET_VENDOR_3COM is not set
+# CONFIG_DM9000 is not set
+
+#
+# Tulip family network device support
+#
+# CONFIG_NET_TULIP is not set
+# CONFIG_HP100 is not set
+CONFIG_NET_PCI=y
+# CONFIG_PCNET32 is not set
+# CONFIG_AMD8111_ETH is not set
+# CONFIG_ADAPTEC_STARFIRE is not set
+# CONFIG_B44 is not set
+# CONFIG_FORCEDETH is not set
+# CONFIG_DGRS is not set
+# CONFIG_EEPRO100 is not set
+CONFIG_E100=y
+# CONFIG_FEALNX is not set
+# CONFIG_NATSEMI is not set
+# CONFIG_NE2K_PCI is not set
+# CONFIG_8139CP is not set
+# CONFIG_8139TOO is not set
+# CONFIG_SIS900 is not set
+# CONFIG_EPIC100 is not set
+# CONFIG_SUNDANCE is not set
+# CONFIG_TLAN is not set
+# CONFIG_VIA_RHINE is not set
+# CONFIG_LAN_SAA9730 is not set
+
+#
+# Ethernet (1000 Mbit)
+#
+# CONFIG_ACENIC is not set
+# CONFIG_DL2K is not set
+# CONFIG_E1000 is not set
+# CONFIG_NS83820 is not set
+# CONFIG_HAMACHI is not set
+# CONFIG_YELLOWFIN is not set
+# CONFIG_R8169 is not set
+# CONFIG_SIS190 is not set
+# CONFIG_SKGE is not set
+# CONFIG_SKY2 is not set
+# CONFIG_SK98LIN is not set
+# CONFIG_VIA_VELOCITY is not set
+# CONFIG_TIGON3 is not set
+# CONFIG_BNX2 is not set
+
+#
+# Ethernet (10000 Mbit)
+#
+# CONFIG_CHELSIO_T1 is not set
+# CONFIG_IXGB is not set
+# CONFIG_S2IO is not set
+
+#
+# Token Ring devices
+#
+# CONFIG_TR is not set
+
+#
+# Wireless LAN (non-hamradio)
+#
+# CONFIG_NET_RADIO is not set
+
+#
+# Wan interfaces
+#
+# CONFIG_WAN is not set
+# CONFIG_FDDI is not set
+# CONFIG_HIPPI is not set
+# CONFIG_PPP is not set
+# CONFIG_SLIP is not set
+# CONFIG_SHAPER is not set
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+
+#
+# ISDN subsystem
+#
+# CONFIG_ISDN is not set
+
+#
+# Telephony Support
+#
+# CONFIG_PHONE is not set
+
+#
+# Input device support
+#
+# CONFIG_INPUT is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+# CONFIG_VT is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_NR_UARTS=1
+CONFIG_SERIAL_8250_RUNTIME_UARTS=1
+# CONFIG_SERIAL_8250_EXTENDED is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+# CONFIG_SERIAL_JSM is not set
+CONFIG_UNIX98_PTYS=y
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+
+#
+# IPMI
+#
+# CONFIG_IPMI_HANDLER is not set
+
+#
+# Watchdog Cards
+#
+# CONFIG_WATCHDOG is not set
+CONFIG_RTC=y
+# CONFIG_DTLK is not set
+# CONFIG_R3964 is not set
+# CONFIG_APPLICOM is not set
+
+#
+# Ftape, the floppy tape device driver
+#
+# CONFIG_DRM is not set
+# CONFIG_RAW_DRIVER is not set
+
+#
+# TPM devices
+#
+# CONFIG_TCG_TPM is not set
+# CONFIG_TELCLOCK is not set
+
+#
+# I2C support
+#
+# CONFIG_I2C is not set
+
+#
+# SPI support
+#
+# CONFIG_SPI is not set
+# CONFIG_SPI_MASTER is not set
+
+#
+# Dallas's 1-wire bus
+#
+# CONFIG_W1 is not set
+
+#
+# Hardware Monitoring support
+#
+CONFIG_HWMON=y
+# CONFIG_HWMON_VID is not set
+# CONFIG_SENSORS_F71805F is not set
+# CONFIG_HWMON_DEBUG_CHIP is not set
+
+#
+# Misc devices
+#
+
+#
+# Multimedia Capabilities Port drivers
+#
+
+#
+# Multimedia devices
+#
+# CONFIG_VIDEO_DEV is not set
+
+#
+# Digital Video Broadcasting Devices
+#
+# CONFIG_DVB is not set
+
+#
+# Graphics support
+#
+# CONFIG_FB is not set
+
+#
+# Sound
+#
+# CONFIG_SOUND is not set
+
+#
+# USB support
+#
+CONFIG_USB_ARCH_HAS_HCD=y
+CONFIG_USB_ARCH_HAS_OHCI=y
+# CONFIG_USB is not set
+
+#
+# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
+#
+
+#
+# USB Gadget Support
+#
+# CONFIG_USB_GADGET is not set
+
+#
+# MMC/SD Card support
+#
+# CONFIG_MMC is not set
+
+#
+# InfiniBand support
+#
+# CONFIG_INFINIBAND is not set
+
+#
+# EDAC - error detection and reporting (RAS) (EXPERIMENTAL)
+#
+
+#
+# File systems
+#
+# CONFIG_EXT2_FS is not set
+# CONFIG_EXT3_FS is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_FS_POSIX_ACL is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_OCFS2_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_ROMFS_FS is not set
+CONFIG_INOTIFY=y
+# CONFIG_QUOTA is not set
+CONFIG_DNOTIFY=y
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+# CONFIG_MSDOS_FS is not set
+# CONFIG_VFAT_FS is not set
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_KCORE=y
+CONFIG_SYSFS=y
+CONFIG_TMPFS=y
+# CONFIG_HUGETLB_PAGE is not set
+CONFIG_RAMFS=y
+# CONFIG_RELAYFS_FS is not set
+# CONFIG_CONFIGFS_FS is not set
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+
+#
+# Network File Systems
+#
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+# CONFIG_NFS_V3_ACL is not set
+# CONFIG_NFS_V4 is not set
+# CONFIG_NFS_DIRECTIO is not set
+# CONFIG_NFSD is not set
+CONFIG_ROOT_NFS=y
+CONFIG_LOCKD=y
+CONFIG_LOCKD_V4=y
+CONFIG_NFS_COMMON=y
+CONFIG_SUNRPC=y
+# CONFIG_RPCSEC_GSS_KRB5 is not set
+# CONFIG_RPCSEC_GSS_SPKM3 is not set
+# CONFIG_SMB_FS is not set
+# CONFIG_CIFS is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+# CONFIG_9P_FS is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+
+#
+# Native Language Support
+#
+# CONFIG_NLS is not set
+
+#
+# Profiling support
+#
+# CONFIG_PROFILING is not set
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+# CONFIG_MAGIC_SYSRQ is not set
+# CONFIG_DEBUG_KERNEL is not set
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_CROSSCOMPILE=y
+CONFIG_CMDLINE="console=ttyS0,115200n8"
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+
+#
+# Cryptographic options
+#
+# CONFIG_CRYPTO is not set
+
+#
+# Hardware crypto devices
+#
+
+#
+# Library routines
+#
+CONFIG_CRC_CCITT=y
+CONFIG_CRC16=y
+CONFIG_CRC32=y
+CONFIG_LIBCRC32C=y
diff -uprN linux-2.6.16.11/arch/mips/gt64120/wrppmc/int-handler.S linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/int-handler.S
--- linux-2.6.16.11/arch/mips/gt64120/wrppmc/int-handler.S 1970-01-01 08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/int-handler.S 2006-05-06 15:41:04.000000000 +0800
@@ -0,0 +1,59 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 1995, 1996, 1997, 2003 by Ralf Baechle
+ * Copyright (C) Wind River System Inc. Rongkai.Zhan <rongkai.zhan@windriver.com>
+ */
+#include <asm/asm.h>
+#include <asm/mipsregs.h>
+#include <asm/addrspace.h>
+#include <asm/regdef.h>
+#include <asm/stackframe.h>
+#include <asm/mach-wrppmc/mach-gt64120.h>
+
+ .align 5
+ .set noat
+NESTED(handle_IRQ, PT_SIZE, sp)
+ SAVE_ALL
+ CLI # Important: mark KERNEL mode !
+ .set at
+
+ mfc0 t0, CP0_CAUSE # get pending interrupts
+ mfc0 t1, CP0_STATUS # get enabled interrupts
+ and t0, t0, t1 # get allowed interrupts
+ andi t0, t0, 0xFF00
+ beqz t0, 1f
+ move a1, sp # Prepare 'struct pt_regs *regs' pointer
+
+ andi t1, t0, CAUSEF_IP7 # CPU Compare/Count internal timer
+ bnez t1, handle_cputimer_irq
+ andi t1, t0, CAUSEF_IP6 # UART 16550 port
+ bnez t1, handle_uart_irq
+ andi t1, t0, CAUSEF_IP3 # PCI INT_A
+ bnez t1, handle_pci_intA_irq
+
+ /* wrong alarm or masked ... */
+1: j spurious_interrupt
+ nop
+END(handle_IRQ)
+
+ .align 5
+handle_cputimer_irq:
+ li a0, WRPPMC_MIPS_TIMER_IRQ
+ jal do_IRQ
+ j ret_from_irq
+
+ .align 5
+handle_uart_irq:
+ li a0, WRPPMC_UART16550_IRQ
+ jal do_IRQ
+ j ret_from_irq
+
+ .align 5
+handle_pci_intA_irq:
+ li a0, WRPPMC_PCI_INTA_IRQ
+ jal do_IRQ
+ j ret_from_irq
+
diff -uprN linux-2.6.16.11/arch/mips/gt64120/wrppmc/irq.c linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/irq.c
--- linux-2.6.16.11/arch/mips/gt64120/wrppmc/irq.c 1970-01-01 08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/irq.c 2006-05-06 15:39:27.000000000 +0800
@@ -0,0 +1,63 @@
+/*
+ * irq.c: GT64120 Interrupt Controller
+ *
+ * Copyright (C) 2006, Wind River System Inc.
+ * Author: Rongkai.Zhan, <rongkai.zhan@windriver.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/kernel_stat.h>
+#include <linux/module.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/timex.h>
+#include <linux/slab.h>
+#include <linux/random.h>
+#include <linux/bitops.h>
+#include <asm/bootinfo.h>
+#include <asm/io.h>
+#include <asm/bitops.h>
+#include <asm/mipsregs.h>
+#include <asm/system.h>
+#include <asm/irq_cpu.h>
+#include <asm/gt64120.h>
+
+extern asmlinkage void handle_IRQ(void);
+
+/**
+ * Initialize GT64120 Interrupt Controller
+ */
+void gt64120_init_pic(void)
+{
+ /* clear CPU Interrupt Cause Registers */
+ GT_WRITE(GT_INTRCAUSE_OFS, (0x1F << 21));
+ GT_WRITE(GT_HINTRCAUSE_OFS, 0x00);
+
+ /* Disable all interrupts from GT64120 bridge chip */
+ GT_WRITE(GT_INTRMASK_OFS, 0x00);
+ GT_WRITE(GT_HINTRMASK_OFS, 0x00);
+ GT_WRITE(GT_PCI0_ICMASK_OFS, 0x00);
+ GT_WRITE(GT_PCI0_HICMASK_OFS, 0x00);
+}
+
+void __init arch_init_irq(void)
+{
+ /* enable all CPU interrupt bits. */
+ set_c0_status(ST0_IM); /* IE bit is still 0 */
+
+ /* Install MIPS Interrupt Trap Vector */
+ set_except_vector(0, handle_IRQ);
+
+ /* IRQ 0 - 7 are for MIPS common irq_cpu controller */
+ mips_cpu_irq_init(0);
+
+ gt64120_init_pic();
+}
diff -uprN linux-2.6.16.11/arch/mips/gt64120/wrppmc/Makefile linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/Makefile
--- linux-2.6.16.11/arch/mips/gt64120/wrppmc/Makefile 1970-01-01 08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/Makefile 2006-04-14 15:25:48.000000000 +0800
@@ -0,0 +1,14 @@
+#
+# 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.
+#
+# Copyright 2006 Wind River System, Inc.
+# Author: Rongkai.Zhan <rongkai.zhan@windriver.com>
+#
+# Makefile for the Wind River MIPS 4KC PPMC Eval Board
+#
+
+obj-y += int-handler.o irq.o reset.o setup.o time.o pci.o
+
+EXTRA_AFLAGS := $(CFLAGS)
diff -uprN linux-2.6.16.11/arch/mips/gt64120/wrppmc/pci.c linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/pci.c
--- linux-2.6.16.11/arch/mips/gt64120/wrppmc/pci.c 1970-01-01 08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/pci.c 2006-05-05 17:25:48.000000000 +0800
@@ -0,0 +1,53 @@
+/*
+ * pci.c: GT64120 PCI support.
+ *
+ * Copyright (C) 2006, Wind River System Inc. Rongkai.Zhan <rongkai.zhan@windriver.com>
+ *
+ * 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.
+ */
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <asm/gt64120.h>
+
+extern struct pci_ops gt64120_pci_ops;
+
+static struct resource pci0_io_resource = {
+ .name = "pci_0 io",
+ .start = GT_PCI_IO_BASE,
+ .end = GT_PCI_IO_BASE + GT_PCI_IO_SIZE - 1,
+ .flags = IORESOURCE_IO,
+};
+
+static struct resource pci0_mem_resource = {
+ .name = "pci_0 memory",
+ .start = GT_PCI_MEM_BASE,
+ .end = GT_PCI_MEM_BASE + GT_PCI_MEM_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct pci_controller hose_0 = {
+ .pci_ops = >64120_pci_ops,
+ .io_resource = &pci0_io_resource,
+ .mem_resource = &pci0_mem_resource,
+};
+
+static int __init gt64120_pci_init(void)
+{
+ u32 tmp;
+
+ tmp = GT_READ(GT_PCI0_CMD_OFS); /* Huh??? -- Ralf */
+ tmp = GT_READ(GT_PCI0_BARE_OFS);
+
+ /* reset the whole PCI I/O space range */
+ ioport_resource.start = GT_PCI_IO_BASE;
+ ioport_resource.end = GT_PCI_IO_BASE + GT_PCI_IO_SIZE - 1;
+
+ register_pci_controller(&hose_0);
+ return 0;
+}
+
+arch_initcall(gt64120_pci_init);
diff -uprN linux-2.6.16.11/arch/mips/gt64120/wrppmc/reset.c linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/reset.c
--- linux-2.6.16.11/arch/mips/gt64120/wrppmc/reset.c 1970-01-01 08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/reset.c 2006-04-13 22:24:56.000000000 +0800
@@ -0,0 +1,50 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 1997 Ralf Baechle
+ */
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/processor.h>
+#include <asm/reboot.h>
+#include <asm/system.h>
+#include <asm/cacheflush.h>
+
+void wrppmc_machine_restart(char *command)
+{
+ /*
+ * Ouch, we're still alive ... This time we take the silver bullet ...
+ * ... and find that we leave the hardware in a state in which the
+ * kernel in the flush locks up somewhen during of after the PCI
+ * detection stuff.
+ */
+ local_irq_disable();
+ set_c0_status(ST0_BEV | ST0_ERL);
+ change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED);
+ flush_cache_all();
+ write_c0_wired(0);
+ __asm__ __volatile__("jr\t%0"::"r"(0xbfc00000));
+}
+
+void wrppmc_machine_halt(void)
+{
+ local_irq_disable();
+
+ printk(KERN_NOTICE "You can safely turn off the power\n");
+ while (1) {
+ __asm__(
+ ".set\tmips3\n\t"
+ "wait\n\t"
+ ".set\tmips0"
+ );
+ }
+}
+
+void wrppmc_machine_power_off(void)
+{
+ wrppmc_machine_halt();
+}
diff -uprN linux-2.6.16.11/arch/mips/gt64120/wrppmc/setup.c linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/setup.c
--- linux-2.6.16.11/arch/mips/gt64120/wrppmc/setup.c 1970-01-01 08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/setup.c 2006-05-06 16:05:30.000000000 +0800
@@ -0,0 +1,173 @@
+/*
+ * setup.c: Setup pointers to hardware dependent routines.
+ *
+ * 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.
+ *
+ * Copyright (C) 1996, 1997, 2004 by Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (C) 2006, Wind River System Inc. Rongkai.zhan <rongkai.zhan@windriver.com>
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/tty.h>
+#include <linux/serial.h>
+#include <linux/serial_core.h>
+#include <linux/pm.h>
+
+#include <asm/io.h>
+#include <asm/bootinfo.h>
+#include <asm/reboot.h>
+#include <asm/time.h>
+#include <asm/gt64120.h>
+
+unsigned long gt64120_base = KSEG1ADDR(0x14000000);
+
+#ifdef WRPPMC_EARLY_DEBUG
+
+static volatile unsigned char * wrppmc_led = \
+ (volatile unsigned char *)KSEG1ADDR(WRPPMC_LED_BASE);
+
+/*
+ * PPMC LED control register:
+ * -) bit[0] controls DS1 LED (1 - OFF, 0 - ON)
+ * -) bit[1] controls DS2 LED (1 - OFF, 0 - ON)
+ * -) bit[2] controls DS4 LED (1 - OFF, 0 - ON)
+ */
+void wrppmc_led_on(int mask)
+{
+ unsigned char value = *wrppmc_led;
+
+ value &= (0xF8 | mask);
+ *wrppmc_led = value;
+}
+
+/* If mask = 0, turn off all LEDs */
+void wrppmc_led_off(int mask)
+{
+ unsigned char value = *wrppmc_led;
+
+ value |= (0x7 & mask);
+ *wrppmc_led = value;
+}
+
+/*
+ * We assume that bootloader has initialized UART16550 correctly
+ */
+void __init wrppmc_early_putc(char ch)
+{
+ static volatile unsigned char *wrppmc_uart = \
+ (volatile unsigned char *)KSEG1ADDR(WRPPMC_UART16550_BASE);
+ unsigned char value;
+
+ /* Wait until Transmit-Holding-Register is empty */
+ while (1) {
+ value = *(wrppmc_uart + 5);
+ if (value & 0x20)
+ break;
+ }
+
+ *wrppmc_uart = ch;
+}
+
+void __init wrppmc_early_printk(const char *fmt, ...)
+{
+ static char pbuf[256] = {'\0', };
+ char *ch = pbuf;
+ va_list args;
+ unsigned int i;
+
+ memset(pbuf, 0, 256);
+ va_start(args, fmt);
+ i = vsprintf(pbuf, fmt, args);
+ va_end(args);
+
+ /* Print the string */
+ while (*ch != '\0') {
+ wrppmc_early_putc(*ch);
+ /* if print '\n', also print '\r' */
+ if (*ch++ == '\n')
+ wrppmc_early_putc('\r');
+ }
+}
+#endif /* WRPPMC_EARLY_DEBUG */
+
+unsigned long __init prom_free_prom_memory(void)
+{
+ return 0;
+}
+
+#ifdef CONFIG_SERIAL_8250
+static void wrppmc_setup_serial(void)
+{
+ struct uart_port up;
+
+ memset(&up, 0x00, sizeof(struct uart_port));
+
+ /*
+ * A note about mapbase/membase
+ * -) mapbase is the physical address of the IO port.
+ * -) membase is an 'ioremapped' cookie.
+ */
+ up.line = 0;
+ up.type = PORT_16550;
+ up.iotype = UPIO_MEM;
+ up.mapbase = WRPPMC_UART16550_BASE;
+ up.membase = ioremap(up.mapbase, 8);
+ up.irq = WRPPMC_UART16550_IRQ;
+ up.uartclk = WRPPMC_UART16550_CLOCK;
+ up.flags = UPF_SKIP_TEST/* | UPF_BOOT_AUTOCONF */;
+ up.regshift = 0;
+
+ early_serial_setup(&up);
+}
+#endif
+
+void __init plat_setup(void)
+{
+ extern void wrppmc_time_init(void);
+ extern void wrppmc_timer_setup(struct irqaction *);
+ extern void wrppmc_machine_restart(char *command);
+ extern void wrppmc_machine_halt(void);
+ extern void wrppmc_machine_power_off(void);
+
+ _machine_restart = wrppmc_machine_restart;
+ _machine_halt = wrppmc_machine_halt;
+ pm_power_off = wrppmc_machine_power_off;
+
+ /* Use MIPS Count/Compare Timer */
+ board_time_init = wrppmc_time_init;
+ board_timer_setup = wrppmc_timer_setup;
+
+ /* This makes the operations of 'in/out[bwl]' to the
+ * physical address ( < KSEG0) can work via KSEG1
+ */
+ set_io_port_base(KSEG1);
+
+#ifdef CONFIG_SERIAL_8250
+ wrppmc_setup_serial();
+#endif
+}
+
+const char *get_system_type(void)
+{
+ return "Wind River PPMC (GT64120)";
+}
+
+/*
+ * Initializes basic routines and structures pointers, memory size (as
+ * given by the bios and saves the command line.
+ */
+void __init prom_init(void)
+{
+ mips_machgroup = MACH_GROUP_GALILEO;
+ mips_machtype = MACH_EV64120A;
+
+ add_memory_region(WRPPMC_SDRAM_SCS0_BASE, WRPPMC_SDRAM_SCS0_SIZE, BOOT_MEM_RAM);
+ add_memory_region(WRPPMC_BOOTROM_BASE, WRPPMC_BOOTROM_SIZE, BOOT_MEM_ROM_DATA);
+
+ wrppmc_early_printk("prom_init: GT64120 SDRAM Bank 0: 0x%x - 0x%08lx\n",
+ WRPPMC_SDRAM_SCS0_BASE, (WRPPMC_SDRAM_SCS0_BASE + WRPPMC_SDRAM_SCS0_SIZE));
+}
diff -uprN linux-2.6.16.11/arch/mips/gt64120/wrppmc/time.c linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/time.c
--- linux-2.6.16.11/arch/mips/gt64120/wrppmc/time.c 1970-01-01 08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/gt64120/wrppmc/time.c 2006-05-05 16:39:32.000000000 +0800
@@ -0,0 +1,57 @@
+/*
+ * time.c: MIPS CPU Count/Compare timer hookup
+ *
+ * Author: Mark.Zhan, <rongkai.zhan@windriver.com>
+ *
+ * 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.
+ *
+ * Copyright (C) 1996, 1997, 2004 by Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (C) 2006, Wind River System Inc.
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/param.h> /* for HZ */
+#include <linux/irq.h>
+#include <linux/timex.h>
+#include <linux/interrupt.h>
+
+#include <asm/reboot.h>
+#include <asm/time.h>
+#include <asm/io.h>
+#include <asm/bootinfo.h>
+#include <asm/gt64120.h>
+
+#define WRPPMC_CPU_CLK_FREQ 40000000 /* 40MHZ */
+
+void __init wrppmc_timer_setup(struct irqaction *irq)
+{
+ /* Install ISR for timer interrupt */
+ setup_irq(WRPPMC_MIPS_TIMER_IRQ, irq);
+
+ /* to generate the first timer interrupt */
+ write_c0_compare(mips_hpt_frequency/HZ);
+ write_c0_count(0);
+}
+
+/*
+ * Estimate CPU frequency. Sets mips_hpt_frequency as a side-effect
+ *
+ * NOTE: We disable all GT64120 timers, and use MIPS processor internal
+ * timer as the source of kernel clock tick.
+ */
+void __init wrppmc_time_init(void)
+{
+ /* Disable GT64120 timers */
+ GT_WRITE(GT_TC_CONTROL_OFS, 0x00);
+ GT_WRITE(GT_TC0_OFS, 0x00);
+ GT_WRITE(GT_TC1_OFS, 0x00);
+ GT_WRITE(GT_TC2_OFS, 0x00);
+ GT_WRITE(GT_TC3_OFS, 0x00);
+
+ /* Use MIPS compare/count internal timer */
+ mips_hpt_frequency = WRPPMC_CPU_CLK_FREQ;
+}
diff -uprN linux-2.6.16.11/arch/mips/Kconfig linux-2.6.16.11-ppmc/arch/mips/Kconfig
--- linux-2.6.16.11/arch/mips/Kconfig 2006-04-25 04:20:24.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/Kconfig 2006-05-05 10:53:40.000000000 +0800
@@ -326,6 +326,27 @@ config MIPS_SEAD
This enables support for the MIPS Technologies SEAD evaluation
board.
+config WR_PPMC
+ bool "Support for Wind River PPMC board"
+ select IRQ_CPU
+ select BOOT_ELF32
+ select DMA_NONCOHERENT
+ select HW_HAS_PCI
+ select MIPS_GT64120
+ select SWAP_IO_SPACE
+ select SYS_HAS_CPU_MIPS32_R1
+ select SYS_HAS_CPU_MIPS32_R2
+ select SYS_HAS_CPU_MIPS64_R1
+ select SYS_HAS_CPU_NEVADA
+ select SYS_HAS_CPU_RM7000
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+ help
+ This enables support for the Wind River MIPS32 4KC PPMC evaluation
+ board, which is based on GT64120 bridge chip.
+
config MIPS_SIM
bool 'Support for MIPS simulator (MIPSsim)'
select DMA_NONCOHERENT
diff -uprN linux-2.6.16.11/arch/mips/Makefile linux-2.6.16.11-ppmc/arch/mips/Makefile
--- linux-2.6.16.11/arch/mips/Makefile 2006-04-25 04:20:24.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/Makefile 2006-05-05 12:42:16.000000000 +0800
@@ -419,6 +419,13 @@ cflags-$(CONFIG_MIPS_EV96100) += -Iinclu
load-$(CONFIG_MIPS_EV96100) += 0xffffffff80100000
#
+# Wind River PPMC Board (4KC + GT64120)
+#
+core-$(CONFIG_WR_PPMC) += arch/mips/gt64120/wrppmc/
+cflags-$(CONFIG_WR_PPMC) += -Iinclude/asm-mips/mach-wrppmc
+load-$(CONFIG_WR_PPMC) += 0xffffffff80100000
+
+#
# Globespan IVR eval board with QED 5231 CPU
#
core-$(CONFIG_ITE_BOARD_GEN) += arch/mips/ite-boards/generic/
diff -uprN linux-2.6.16.11/arch/mips/pci/fixup-wrppmc.c linux-2.6.16.11-ppmc/arch/mips/pci/fixup-wrppmc.c
--- linux-2.6.16.11/arch/mips/pci/fixup-wrppmc.c 1970-01-01 08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/pci/fixup-wrppmc.c 2006-05-06 15:24:57.000000000 +0800
@@ -0,0 +1,37 @@
+/*
+ * fixup-wrppmc.c: PPMC board specific PCI fixup
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2006, Wind River Inc. Rongkai.zhan (rongkai.zhan@windriver.com)
+ */
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <asm/gt64120.h>
+
+/* PCI interrupt pins */
+#define PCI_INTA 1
+#define PCI_INTB 2
+#define PCI_INTC 3
+#define PCI_INTD 4
+
+#define PCI_SLOT_MAXNR 32 /* Each PCI bus has 32 physical slots */
+
+static char pci_irq_tab[PCI_SLOT_MAXNR][5] __initdata = {
+ /* 0 INTA INTB INTC INTD */
+ [0] = {0, 0, 0, 0, 0}, /* Slot 0: GT64120 PCI bridge */
+ [6] = {0, WRPPMC_PCI_INTA_IRQ, 0, 0, 0},
+};
+
+int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+ return pci_irq_tab[slot][pin];
+}
+
+/* Do platform specific device initialization at pci_enable_device() time */
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+ return 0;
+}
diff -uprN linux-2.6.16.11/arch/mips/pci/Makefile linux-2.6.16.11-ppmc/arch/mips/pci/Makefile
--- linux-2.6.16.11/arch/mips/pci/Makefile 2006-04-25 04:20:24.000000000 +0800
+++ linux-2.6.16.11-ppmc/arch/mips/pci/Makefile 2006-05-05 11:30:44.000000000 +0800
@@ -57,3 +57,4 @@ obj-$(CONFIG_TOSHIBA_RBTX4927) += fixup-
obj-$(CONFIG_TOSHIBA_RBTX4938) += fixup-tx4938.o ops-tx4938.o
obj-$(CONFIG_VICTOR_MPC30X) += fixup-mpc30x.o
obj-$(CONFIG_ZAO_CAPCELLA) += fixup-capcella.o
+obj-$(CONFIG_WR_PPMC) += fixup-wrppmc.o
diff -uprN linux-2.6.16.11/include/asm-mips/mach-wrppmc/mach-gt64120.h linux-2.6.16.11-ppmc/include/asm-mips/mach-wrppmc/mach-gt64120.h
--- linux-2.6.16.11/include/asm-mips/mach-wrppmc/mach-gt64120.h 1970-01-01 08:00:00.000000000 +0800
+++ linux-2.6.16.11-ppmc/include/asm-mips/mach-wrppmc/mach-gt64120.h 2006-05-06 15:31:51.000000000 +0800
@@ -0,0 +1,84 @@
+/*
+ * This is a direct copy of the ev96100.h file, with a global
+ * search and replace. The numbers are the same.
+ *
+ * The reason I'm duplicating this is so that the 64120/96100
+ * defines won't be confusing in the source code.
+ */
+#ifndef __ASM_MIPS_GT64120_H
+#define __ASM_MIPS_GT64120_H
+
+/*
+ * This is the CPU physical memory map of PPMC Board:
+ *
+ * 0x00000000-0x03FFFFFF - 64MB SDRAM (SCS[0]#)
+ * 0x1C000000-0x1C000000 - LED (CS0)
+ * 0x1C800000-0x1C800007 - UART 16550 port (CS1)
+ * 0x1F000000-0x1F000000 - MailBox (CS3)
+ * 0x1FC00000-0x20000000 - 4MB Flash (BOOT CS)
+ */
+
+#define WRPPMC_SDRAM_SCS0_BASE 0x00000000
+#define WRPPMC_SDRAM_SCS0_SIZE 0x04000000
+
+#define WRPPMC_UART16550_BASE 0x1C800000
+#define WRPPMC_UART16550_CLOCK 3686400 /* 3.68MHZ */
+
+#define WRPPMC_LED_BASE 0x1C000000
+#define WRPPMC_MBOX_BASE 0x1F000000
+
+#define WRPPMC_BOOTROM_BASE 0x1FC00000
+#define WRPPMC_BOOTROM_SIZE 0x00400000 /* 4M Flash */
+
+#define WRPPMC_MIPS_TIMER_IRQ 7 /* MIPS compare/count timer interrupt */
+#define WRPPMC_UART16550_IRQ 6
+#define WRPPMC_PCI_INTA_IRQ 3
+
+/*
+ * PCI Bus I/O and Memory resources allocation
+ *
+ * NOTE: We only have PCI_0 hose interface
+ */
+#define GT_PCI_MEM_BASE 0x13000000UL
+#define GT_PCI_MEM_SIZE 0x02000000UL
+#define GT_PCI_IO_BASE 0x11000000UL
+#define GT_PCI_IO_SIZE 0x02000000UL
+#define GT_ISA_IO_BASE PCI_IO_BASE
+
+/*
+ * PCI interrupts will come in on either the INTA or INTD interrups lines,
+ * which are mapped to the #2 and #5 interrupt pins of the MIPS. On our
+ * boards, they all either come in on IntD or they all come in on IntA, they
+ * aren't mixed. There can be numerous PCI interrupts, so we keep a list of the
+ * "requested" interrupt numbers and go through the list whenever we get an
+ * IntA/D.
+ *
+ * Interrupts < 8 are directly wired to the processor; PCI INTA is 8 and
+ * INTD is 11.
+ */
+#define GT_TIMER 4
+#define GT_INTA 2
+#define GT_INTD 5
+
+#ifndef __ASSEMBLY__
+
+/*
+ * GT64120 internal register space base address
+ */
+extern unsigned long gt64120_base;
+
+#define GT64120_BASE (gt64120_base)
+
+/* define WRPPMC_EARLY_DEBUG to enable early output something to UART */
+#undef WRPPMC_EARLY_DEBUG
+
+#ifdef WRPPMC_EARLY_DEBUG
+extern void wrppmc_led_on(int mask);
+extern void wrppmc_led_off(int mask);
+extern void wrppmc_early_printk(const char *fmt, ...);
+#else
+#define wrppmc_early_printk(fmt, ...) do {} while (0)
+#endif /* WRPPMC_EARLY_DEBUG */
+
+#endif /* __ASSEMBLY__ */
+#endif /* __ASM_MIPS_GT64120_H */
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH 1/2] Wind River 4KC PPMC Eval Board Support
2006-05-06 9:04 [PATCH 1/2] Wind River 4KC PPMC Eval Board Support Mark.Zhan
@ 2006-05-09 16:41 ` Ralf Baechle
2006-05-10 2:41 ` Mark.Zhan
0 siblings, 1 reply; 7+ messages in thread
From: Ralf Baechle @ 2006-05-09 16:41 UTC (permalink / raw)
To: Mark.Zhan; +Cc: linux-mips
On Sat, May 06, 2006 at 05:04:20PM +0800, Mark.Zhan wrote:
> According to your comments, I re-create the patch. Hopefully, no line-wrapped problems:-)
> Patch 1 and 2 in the original mails are concatenated into one patch in this mail.
Well, this patch was still somewhat corrupt, a few spaces were missing
but I was somehow able to talk git into taking it. So it's applied on
the queue branch.
Ralf
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH 1/2] Wind River 4KC PPMC Eval Board Support
2006-05-09 16:41 ` Ralf Baechle
@ 2006-05-10 2:41 ` Mark.Zhan
2006-05-10 15:32 ` Ralf Baechle
0 siblings, 1 reply; 7+ messages in thread
From: Mark.Zhan @ 2006-05-10 2:41 UTC (permalink / raw)
To: Ralf Baechle; +Cc: linux-mips
Ralf Baechle wrote:
> On Sat, May 06, 2006 at 05:04:20PM +0800, Mark.Zhan wrote:
>
>> According to your comments, I re-create the patch. Hopefully, no line-wrapped problems:-)
>> Patch 1 and 2 in the original mails are concatenated into one patch in this mail.
>
> Well, this patch was still somewhat corrupt, a few spaces were missing
Huhh, I don't what's wrong with my thunderbird.
> but I was somehow able to talk git into taking it. So it's applied on
> the queue branch.
>
> Ralf
After looking into the changeset ac58afdfac792c0583af30dbd9eae53e24c78b,
I find what I want to do has been done by you:-)
For those MIPS32 boards which only use IRQ_CPU, I think, we can provide
a default plat_irq_dispatch() implemention, maybe like this:
asmlinkage plat_irq_dispatch(struct pt_regs *regs)
{
unsigned int pending = read_c0_status() & read_c0_cause();
int irq;
irq = ffs(pending >> 8) - 1;
return do_IRQ(irq, regs);
}
I this it will clean up more codes......
Best Regards,
Mark.Zhan
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH 1/2] Wind River 4KC PPMC Eval Board Support
2006-05-10 2:41 ` Mark.Zhan
@ 2006-05-10 15:32 ` Ralf Baechle
0 siblings, 0 replies; 7+ messages in thread
From: Ralf Baechle @ 2006-05-10 15:32 UTC (permalink / raw)
To: Mark.Zhan; +Cc: linux-mips
On Wed, May 10, 2006 at 10:41:16AM +0800, Mark.Zhan wrote:
> After looking into the changeset ac58afdfac792c0583af30dbd9eae53e24c78b,
> I find what I want to do has been done by you:-)
I don't have this changeset in my tree; I assume you're refering to the
patch titled "[MIPS] Rewrite all the assembler interrupt handlers to C".
> For those MIPS32 boards which only use IRQ_CPU, I think, we can provide
> a default plat_irq_dispatch() implemention, maybe like this:
>
> asmlinkage plat_irq_dispatch(struct pt_regs *regs)
> {
> unsigned int pending = read_c0_status() & read_c0_cause();
> int irq;
>
> irq = ffs(pending >> 8) - 1;
> return do_IRQ(irq, regs);
> }
>
> I this it will clean up more codes......
There are only few such extremly simple platforms in the tree. The purpose
of me rewriting all the handlers to assembler was that many of the handlers
has bugs that would not exist in a high level language and much of the code
was not scheduled very well - something which gcc does pretty well these
days.
Ralf
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2006-05-10 15:32 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2006-05-06 9:04 [PATCH 1/2] Wind River 4KC PPMC Eval Board Support Mark.Zhan
2006-05-09 16:41 ` Ralf Baechle
2006-05-10 2:41 ` Mark.Zhan
2006-05-10 15:32 ` Ralf Baechle
-- strict thread matches above, loose matches on Subject: below --
2006-05-05 15:42 Zhan, Rongkai
2006-05-05 15:42 ` Zhan, Rongkai
2006-05-05 16:07 ` Ralf Baechle
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