1 files changed, 229 insertions, 0 deletions

diff --git a/arch/mips/mti-malta/malta-setup.c b/arch/mips/mti-malta/malta-setup.c
new file mode 100644
index 000000000000..e7cad54936ca
--- /dev/null
+++ b/arch/mips/mti-malta/malta-setup.c
@@ -0,0 +1,229 @@
+/*
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
+ * Copyright (C) 2008 Dmitri Vorobiev
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope 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/cpu.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/ioport.h>
+#include <linux/irq.h>
+#include <linux/pci.h>
+#include <linux/screen_info.h>
+#include <linux/time.h>
+
+#include <asm/bootinfo.h>
+#include <asm/mips-boards/generic.h>
+#include <asm/mips-boards/prom.h>
+#include <asm/mips-boards/malta.h>
+#include <asm/mips-boards/maltaint.h>
+#include <asm/dma.h>
+#include <asm/traps.h>
+#ifdef CONFIG_VT
+#include <linux/console.h>
+#endif
+
+extern void malta_be_init(void);
+extern int malta_be_handler(struct pt_regs *regs, int is_fixup);
+
+static struct resource standard_io_resources[] = {
+        {
+                .name = "dma1",
+                .start = 0x00,
+                .end = 0x1f,
+                .flags = IORESOURCE_BUSY
+        },
+        {
+                .name = "timer",
+                .start = 0x40,
+                .end = 0x5f,
+                .flags = IORESOURCE_BUSY
+        },
+        {
+                .name = "keyboard",
+                .start = 0x60,
+                .end = 0x6f,
+                .flags = IORESOURCE_BUSY
+        },
+        {
+                .name = "dma page reg",
+                .start = 0x80,
+                .end = 0x8f,
+                .flags = IORESOURCE_BUSY
+        },
+        {
+                .name = "dma2",
+                .start = 0xc0,
+                .end = 0xdf,
+                .flags = IORESOURCE_BUSY
+        },
+};
+
+const char *get_system_type(void)
+{
+        return "MIPS Malta";
+}
+
+#if defined(CONFIG_MIPS_MT_SMTC)
+const char display_string[] = "       SMTC LINUX ON MALTA       ";
+#else
+const char display_string[] = "        LINUX ON MALTA       ";
+#endif /* CONFIG_MIPS_MT_SMTC */
+
+#ifdef CONFIG_BLK_DEV_FD
+static void __init fd_activate(void)
+{
+        /*
+         * Activate Floppy Controller in the SMSC FDC37M817 Super I/O
+         * Controller.
+         * Done by YAMON 2.00 onwards
+         */
+        /* Entering config state. */
+        SMSC_WRITE(SMSC_CONFIG_ENTER, SMSC_CONFIG_REG);
+
+        /* Activate floppy controller. */
+        SMSC_WRITE(SMSC_CONFIG_DEVNUM, SMSC_CONFIG_REG);
+        SMSC_WRITE(SMSC_CONFIG_DEVNUM_FLOPPY, SMSC_DATA_REG);
+        SMSC_WRITE(SMSC_CONFIG_ACTIVATE, SMSC_CONFIG_REG);
+        SMSC_WRITE(SMSC_CONFIG_ACTIVATE_ENABLE, SMSC_DATA_REG);
+
+        /* Exit config state. */
+        SMSC_WRITE(SMSC_CONFIG_EXIT, SMSC_CONFIG_REG);
+}
+#endif
+
+#ifdef CONFIG_BLK_DEV_IDE
+static void __init pci_clock_check(void)
+{
+        unsigned int __iomem *jmpr_p =
+                (unsigned int *) ioremap(MALTA_JMPRS_REG, sizeof(unsigned int));
+        int jmpr = (__raw_readl(jmpr_p) >> 2) & 0x07;
+        static const int pciclocks[] __initdata = {
+                33, 20, 25, 30, 12, 16, 37, 10
+        };
+        int pciclock = pciclocks[jmpr];
+        char *argptr = prom_getcmdline();
+
+        if (pciclock != 33 && !strstr(argptr, "idebus=")) {
+                printk(KERN_WARNING "WARNING: PCI clock is %dMHz, "
+                                "setting idebus\n", pciclock);
+                argptr += strlen(argptr);
+                sprintf(argptr, " idebus=%d", pciclock);
+                if (pciclock < 20 || pciclock > 66)
+                        printk(KERN_WARNING "WARNING: IDE timing "
+                                        "calculations will be incorrect\n");
+        }
+}
+#endif
+
+#if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE)
+static void __init screen_info_setup(void)
+{
+        screen_info = (struct screen_info) {
+                .orig_x = 0,
+                .orig_y = 25,
+                .ext_mem_k = 0,
+                .orig_video_page = 0,
+                .orig_video_mode = 0,
+                .orig_video_cols = 80,
+                .unused2 = 0,
+                .orig_video_ega_bx = 0,
+                .unused3 = 0,
+                .orig_video_lines = 25,
+                .orig_video_isVGA = VIDEO_TYPE_VGAC,
+                .orig_video_points = 16
+        };
+}
+#endif
+
+static void __init bonito_quirks_setup(void)
+{
+        char *argptr;
+
+        argptr = prom_getcmdline();
+        if (strstr(argptr, "debug")) {
+                BONITO_BONGENCFG |= BONITO_BONGENCFG_DEBUGMODE;
+                printk(KERN_INFO "Enabled Bonito debug mode\n");
+        } else
+                BONITO_BONGENCFG &= ~BONITO_BONGENCFG_DEBUGMODE;
+
+#ifdef CONFIG_DMA_COHERENT
+        if (BONITO_PCICACHECTRL & BONITO_PCICACHECTRL_CPUCOH_PRES) {
+                BONITO_PCICACHECTRL |= BONITO_PCICACHECTRL_CPUCOH_EN;
+                printk(KERN_INFO "Enabled Bonito CPU coherency\n");
+
+                argptr = prom_getcmdline();
+                if (strstr(argptr, "iobcuncached")) {
+                        BONITO_PCICACHECTRL &= ~BONITO_PCICACHECTRL_IOBCCOH_EN;
+                        BONITO_PCIMEMBASECFG = BONITO_PCIMEMBASECFG &
+                                ~(BONITO_PCIMEMBASECFG_MEMBASE0_CACHED |
+                                        BONITO_PCIMEMBASECFG_MEMBASE1_CACHED);
+                        printk(KERN_INFO "Disabled Bonito IOBC coherency\n");
+                } else {
+                        BONITO_PCICACHECTRL |= BONITO_PCICACHECTRL_IOBCCOH_EN;
+                        BONITO_PCIMEMBASECFG |=
+                                (BONITO_PCIMEMBASECFG_MEMBASE0_CACHED |
+                                        BONITO_PCIMEMBASECFG_MEMBASE1_CACHED);
+                        printk(KERN_INFO "Enabled Bonito IOBC coherency\n");
+                }
+        } else
+                panic("Hardware DMA cache coherency not supported");
+#endif
+}
+
+void __init plat_mem_setup(void)
+{
+        unsigned int i;
+
+        mips_pcibios_init();
+
+        /* Request I/O space for devices used on the Malta board. */
+        for (i = 0; i < ARRAY_SIZE(standard_io_resources); i++)
+                request_resource(&ioport_resource, standard_io_resources+i);
+
+        /*
+         * Enable DMA channel 4 (cascade channel) in the PIIX4 south bridge.
+         */
+        enable_dma(4);
+
+#ifdef CONFIG_KGDB
+        kgdb_config();
+#endif
+
+#ifdef CONFIG_DMA_COHERENT
+        if (mips_revision_sconid != MIPS_REVISION_SCON_BONITO)
+                panic("Hardware DMA cache coherency not supported");
+#endif
+
+        if (mips_revision_sconid == MIPS_REVISION_SCON_BONITO)
+                bonito_quirks_setup();
+
+#ifdef CONFIG_BLK_DEV_IDE
+        pci_clock_check();
+#endif
+
+#ifdef CONFIG_BLK_DEV_FD
+        fd_activate();
+#endif
+
+#if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE)
+        screen_info_setup();
+#endif
+        mips_reboot_setup();
+
+        board_be_init = malta_be_init;
+        board_be_handler = malta_be_handler;
+}