This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / arch / mips / emma2rh / markeins / setup.c

diff --git a/arch/mips/emma2rh/markeins/setup.c b/arch/mips/emma2rh/markeins/setup.c
new file mode 100644 (file)
index 0000000..b29a447
--- /dev/null
+++ b/arch/mips/emma2rh/markeins/setup.c
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+/*
+ *  arch/mips/emma2rh/markeins/setup.c
+ *      This file is setup for EMMA2RH Mark-eins.
+ *
+ *  Copyright (C) NEC Electronics Corporation 2004-2006
+ *
+ *  This file is based on the arch/mips/ddb5xxx/ddb5477/setup.c.
+ *
+ *     Copyright 2001 MontaVista Software Inc.
+ *
+ *  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.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/initrd.h>
+#include <linux/irq.h>
+#include <linux/ide.h>
+#include <linux/ioport.h>
+#include <linux/param.h>       /* for HZ */
+#include <linux/root_dev.h>
+#include <linux/serial.h>
+#include <linux/serial_core.h>
+
+#include <asm/cpu.h>
+#include <asm/bootinfo.h>
+#include <asm/addrspace.h>
+#include <asm/time.h>
+#include <asm/bcache.h>
+#include <asm/irq.h>
+#include <asm/reboot.h>
+#include <asm/gdb-stub.h>
+#include <asm/traps.h>
+#include <asm/debug.h>
+
+#include <asm/emma2rh/emma2rh.h>
+
+#define        USE_CPU_COUNTER_TIMER   /* whether we use cpu counter */
+
+extern void markeins_led(const char *);
+
+static int bus_frequency = 0;
+
+static void markeins_machine_restart(char *command)
+{
+       static void (*back_to_prom) (void) = (void (*)(void))0xbfc00000;
+
+       printk("cannot EMMA2RH Mark-eins restart.\n");
+       markeins_led("restart.");
+       back_to_prom();
+}
+
+static void markeins_machine_halt(void)
+{
+       printk("EMMA2RH Mark-eins halted.\n");
+       markeins_led("halted.");
+       while (1) ;
+}
+
+static void markeins_machine_power_off(void)
+{
+       printk("EMMA2RH Mark-eins halted. Please turn off the power.\n");
+       markeins_led("poweroff.");
+       while (1) ;
+}
+
+static unsigned long clock[4] = { 166500000, 187312500, 199800000, 210600000 };
+
+static unsigned int __init detect_bus_frequency(unsigned long rtc_base)
+{
+       u32 reg;
+
+       /* detect from boot strap */
+       reg = emma2rh_in32(EMMA2RH_BHIF_STRAP_0);
+       reg = (reg >> 4) & 0x3;
+       return clock[reg];
+}
+
+static void __init emma2rh_time_init(void)
+{
+       u32 reg;
+       if (bus_frequency == 0)
+               bus_frequency = detect_bus_frequency(0);
+
+       reg = emma2rh_in32(EMMA2RH_BHIF_STRAP_0);
+       if ((reg & 0x3) == 0)
+               reg = (reg >> 6) & 0x3;
+       else {
+               reg = emma2rh_in32(EMMA2RH_BHIF_MAIN_CTRL);
+               reg = (reg >> 4) & 0x3;
+       }
+       mips_hpt_frequency = (bus_frequency * (4 + reg)) / 4 / 2;
+}
+
+void __init plat_timer_setup(struct irqaction *irq)
+{
+       /* we are using the cpu counter for timer interrupts */
+       setup_irq(CPU_IRQ_BASE + 7, irq);
+}
+
+static void markeins_board_init(void);
+extern void markeins_irq_setup(void);
+
+static void inline __init markeins_sio_setup(void)
+{
+#ifdef CONFIG_KGDB_8250
+       struct uart_port emma_port;
+
+       memset(&emma_port, 0, sizeof(emma_port));
+
+       emma_port.flags =
+           UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
+       emma_port.iotype = UPIO_MEM;
+       emma_port.regshift = 4; /* I/O addresses are every 8 bytes */
+       emma_port.uartclk = 18544000;   /* Clock rate of the chip */
+
+       emma_port.line = 0;
+       emma_port.mapbase = KSEG1ADDR(EMMA2RH_PFUR0_BASE + 3);
+       emma_port.membase = (u8*)emma_port.mapbase;
+       early_serial_setup(&emma_port);
+
+       emma_port.line = 1;
+       emma_port.mapbase = KSEG1ADDR(EMMA2RH_PFUR1_BASE + 3);
+       emma_port.membase = (u8*)emma_port.mapbase;
+       early_serial_setup(&emma_port);
+
+       emma_port.irq = EMMA2RH_IRQ_PFUR1;
+       kgdb8250_add_port(1, &emma_port);
+#endif
+}
+
+void __init plat_mem_setup(void)
+{
+       /* initialize board - we don't trust the loader */
+       markeins_board_init();
+
+       set_io_port_base(KSEG1ADDR(EMMA2RH_PCI_IO_BASE));
+
+       board_time_init = emma2rh_time_init;
+
+       _machine_restart = markeins_machine_restart;
+       _machine_halt = markeins_machine_halt;
+       pm_power_off = markeins_machine_power_off;
+
+       /* setup resource limits */
+       ioport_resource.start = EMMA2RH_PCI_IO_BASE;
+       ioport_resource.end = EMMA2RH_PCI_IO_BASE + EMMA2RH_PCI_IO_SIZE - 1;
+       iomem_resource.start = EMMA2RH_IO_BASE;
+       iomem_resource.end = EMMA2RH_ROM_BASE - 1;
+
+       /* Reboot on panic */
+       panic_timeout = 180;
+
+       markeins_sio_setup();
+}
+
+static void __init markeins_board_init(void)
+{
+       u32 val;
+
+       val = emma2rh_in32(EMMA2RH_PBRD_INT_EN);        /* open serial interrupts. */
+       emma2rh_out32(EMMA2RH_PBRD_INT_EN, val | 0xaa);
+       val = emma2rh_in32(EMMA2RH_PBRD_CLKSEL);        /* set serial clocks. */
+       emma2rh_out32(EMMA2RH_PBRD_CLKSEL, val | 0x5);  /* 18MHz */
+       emma2rh_out32(EMMA2RH_PCI_CONTROL, 0);
+
+       markeins_led("MVL E2RH");
+}