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-rw-r--r--arch/mips/emma/markeins/setup.c135
1 files changed, 135 insertions, 0 deletions
diff --git a/arch/mips/emma/markeins/setup.c b/arch/mips/emma/markeins/setup.c
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index 000000000000..67f456500084
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+++ b/arch/mips/emma/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 <asm/time.h>
+#include <asm/reboot.h>
+
+#include <asm/emma/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 __initdata emma2rh_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 emma2rh_clock[reg];
+}
+
+void __init plat_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;
+}
+
+static void markeins_board_init(void);
+extern void markeins_irq_setup(void);
+
+static void inline __init markeins_sio_setup(void)
+{
+}
+
+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));
+
+ _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");
+}