1 files changed, 175 insertions, 0 deletions

diff --git a/arch/ppc/platforms/pal4_setup.c b/arch/ppc/platforms/pal4_setup.c
new file mode 100644
index 000000000000..12446b93e38c
--- /dev/null
+++ b/arch/ppc/platforms/pal4_setup.c
@@ -0,0 +1,175 @@
+/*
+ * arch/ppc/platforms/pal4_setup.c
+ *
+ * Board setup routines for the SBS PalomarIV.
+ *
+ * Author: Dan Cox
+ *
+ * 2002 (c) MontaVista, Software, Inc.  This file is licensed under
+ * the terms of the GNU General Public License version 2.  This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/reboot.h>
+#include <linux/time.h>
+#include <linux/irq.h>
+#include <linux/kdev_t.h>
+#include <linux/initrd.h>
+#include <linux/console.h>
+#include <linux/seq_file.h>
+#include <linux/root_dev.h>
+
+#include <asm/io.h>
+#include <asm/todc.h>
+#include <asm/bootinfo.h>
+
+#include <syslib/cpc700.h>
+
+#include "pal4.h"
+
+extern void pal4_find_bridges(void);
+
+unsigned int cpc700_irq_assigns[][2] = {
+        {1, 1},    /* IRQ 0: ECC correctable error */
+        {1, 1},    /* IRQ 1: PCI write to memory range */
+        {0, 1},    /* IRQ 2: PCI write to command register */
+        {0, 1},    /* IRQ 3: UART 0 */
+        {0, 1},    /* IRQ 4: UART 1 */
+        {0, 1},    /* IRQ 5: ICC 0 */
+        {0, 1},    /* IRQ 6: ICC 1 */
+        {0, 1},    /* IRQ 7: GPT compare 0 */
+        {0, 1},    /* IRQ 8: GPT compare 1 */
+        {0, 1},    /* IRQ 9: GPT compare 2 */
+        {0, 1},    /* IRQ 10: GPT compare 3 */
+        {0, 1},    /* IRQ 11: GPT compare 4 */
+        {0, 1},    /* IRQ 12: GPT capture 0 */
+        {0, 1},    /* IRQ 13: GPT capture 1 */
+        {0, 1},    /* IRQ 14: GPT capture 2 */
+        {0, 1},    /* IRQ 15: GPT capture 3 */
+        {0, 1},    /* IRQ 16: GPT capture 4 */
+        {0, 0},    /* IRQ 17: reserved */
+        {0, 0},    /* IRQ 18: reserved */
+        {0, 0},    /* IRQ 19: reserved */
+        {0, 0},    /* IRQ 20: reserved */
+        {0, 1},    /* IRQ 21: Ethernet */
+        {0, 0},    /* IRQ 22: reserved */
+        {0, 0},    /* IRQ 23: reserved */
+        {0, 0},    /* IRQ 24: resreved */
+        {0, 0},    /* IRQ 25: reserved */
+        {0, 0},    /* IRQ 26: reserved */
+        {0, 0},    /* IRQ 27: reserved */
+        {0, 0},    /* IRQ 28: reserved */
+        {0, 0},    /* IRQ 29: reserved */
+        {0, 0},    /* IRQ 30: reserved */
+        {0, 0},    /* IRQ 31: reserved */
+};
+
+static int
+pal4_show_cpuinfo(struct seq_file *m)
+{
+        seq_printf(m, "board\t\t: SBS Palomar IV\n");
+
+        return 0;
+}
+
+static void
+pal4_restart(char *cmd)
+{
+        local_irq_disable();
+        __asm__ __volatile__("lis  3,0xfff0\n \
+                              ori  3,3,0x100\n \
+                              mtspr 26,3\n \
+                              li   3,0\n \
+                              mtspr 27,3\n \
+                              rfi");
+
+        for(;;);
+}
+
+static void
+pal4_power_off(void)
+{
+        local_irq_disable();
+        for(;;);
+}
+
+static void
+pal4_halt(void)
+{
+        pal4_power_off();
+}
+
+TODC_ALLOC();
+
+static void __init
+pal4_setup_arch(void)
+{
+        unsigned long l2;
+
+        TODC_INIT(TODC_TYPE_MK48T37, 0, 0,
+                  ioremap(PAL4_NVRAM, PAL4_NVRAM_SIZE), 8);
+
+        pal4_find_bridges();
+
+#ifdef CONFIG_BLK_DEV_INITRD
+        if (initrd_start)
+                ROOT_DEV = Root_RAM0;
+        else
+#endif
+                ROOT_DEV = Root_NFS;
+
+        /* The L2 gets disabled in the bootloader, but all the proper
+           bits should be present from the fw, so just re-enable it */
+        l2 = _get_L2CR();
+        if (!(l2 & L2CR_L2E)) {
+                /* presume that it was initially set if the size is
+                   still present. */
+                if (l2 ^ L2CR_L2SIZ_MASK)
+                        _set_L2CR(l2 | L2CR_L2E);
+                else
+                        printk("L2 not set by firmware; left disabled.\n");
+        }
+}
+
+static void __init
+pal4_map_io(void)
+{
+        io_block_mapping(0xf0000000, 0xf0000000, 0x10000000, _PAGE_IO);
+}
+
+void __init
+platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
+              unsigned long r6, unsigned long r7)
+{
+        parse_bootinfo(find_bootinfo());
+
+        isa_io_base = 0 /*PAL4_ISA_IO_BASE*/;
+        pci_dram_offset = 0 /*PAL4_PCI_SYS_MEM_BASE*/;
+
+        ppc_md.setup_arch = pal4_setup_arch;
+        ppc_md.show_cpuinfo = pal4_show_cpuinfo;
+
+        ppc_md.setup_io_mappings = pal4_map_io;
+
+        ppc_md.init_IRQ = cpc700_init_IRQ;
+        ppc_md.get_irq = cpc700_get_irq;
+
+        ppc_md.restart = pal4_restart;
+        ppc_md.halt = pal4_halt;
+        ppc_md.power_off = pal4_power_off;
+
+        ppc_md.time_init = todc_time_init;
+        ppc_md.set_rtc_time = todc_set_rtc_time;
+        ppc_md.get_rtc_time = todc_get_rtc_time;
+        ppc_md.calibrate_decr = todc_calibrate_decr;
+
+        ppc_md.nvram_read_val = todc_direct_read_val;
+        ppc_md.nvram_write_val = todc_direct_write_val;
+}
+