1 files changed, 246 insertions, 0 deletions

diff --git a/arch/sh64/mach-cayman/setup.c b/arch/sh64/mach-cayman/setup.c
new file mode 100644
index 000000000000..c793245629ad
--- /dev/null
+++ b/arch/sh64/mach-cayman/setup.c
@@ -0,0 +1,246 @@
+/*
+ * 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.
+ *
+ * arch/sh64/mach-cayman/setup.c
+ *
+ * SH5 Cayman support
+ *
+ * This file handles the architecture-dependent parts of initialization
+ *
+ * Copyright David J. Mckay.
+ * Needs major work!
+ *
+ * benedict.gaster@superh.com:   3rd May 2002
+ *    Added support for ramdisk, removing statically linked romfs at the same time.
+ *
+ * lethal@linux-sh.org:          15th May 2003
+ *    Use the generic procfs cpuinfo interface, just return a valid board name.
+ */
+
+#include <linux/stddef.h>
+#include <linux/init.h>
+#include <linux/config.h>
+#include <linux/mm.h>
+#include <linux/bootmem.h>
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/seq_file.h>
+#include <asm/processor.h>
+#include <asm/platform.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/page.h>
+
+/*
+ * Platform Dependent Interrupt Priorities.
+ */
+
+/* Using defaults defined in irq.h */
+#define RES NO_PRIORITY         /* Disabled */
+#define IR0 IRL0_PRIORITY       /* IRLs */
+#define IR1 IRL1_PRIORITY
+#define IR2 IRL2_PRIORITY
+#define IR3 IRL3_PRIORITY
+#define PCA INTA_PRIORITY       /* PCI Ints */
+#define PCB INTB_PRIORITY
+#define PCC INTC_PRIORITY
+#define PCD INTD_PRIORITY
+#define SER TOP_PRIORITY
+#define ERR TOP_PRIORITY
+#define PW0 TOP_PRIORITY
+#define PW1 TOP_PRIORITY
+#define PW2 TOP_PRIORITY
+#define PW3 TOP_PRIORITY
+#define DM0 NO_PRIORITY         /* DMA Ints */
+#define DM1 NO_PRIORITY
+#define DM2 NO_PRIORITY
+#define DM3 NO_PRIORITY
+#define DAE NO_PRIORITY
+#define TU0 TIMER_PRIORITY      /* TMU Ints */
+#define TU1 NO_PRIORITY
+#define TU2 NO_PRIORITY
+#define TI2 NO_PRIORITY
+#define ATI NO_PRIORITY         /* RTC Ints */
+#define PRI NO_PRIORITY
+#define CUI RTC_PRIORITY
+#define ERI SCIF_PRIORITY       /* SCIF Ints */
+#define RXI SCIF_PRIORITY
+#define BRI SCIF_PRIORITY
+#define TXI SCIF_PRIORITY
+#define ITI TOP_PRIORITY        /* WDT Ints */
+
+/* Setup for the SMSC FDC37C935 */
+#define SMSC_SUPERIO_BASE       0x04000000
+#define SMSC_CONFIG_PORT_ADDR   0x3f0
+#define SMSC_INDEX_PORT_ADDR    SMSC_CONFIG_PORT_ADDR
+#define SMSC_DATA_PORT_ADDR     0x3f1
+
+#define SMSC_ENTER_CONFIG_KEY   0x55
+#define SMSC_EXIT_CONFIG_KEY    0xaa
+
+#define SMCS_LOGICAL_DEV_INDEX  0x07
+#define SMSC_DEVICE_ID_INDEX    0x20
+#define SMSC_DEVICE_REV_INDEX   0x21
+#define SMSC_ACTIVATE_INDEX     0x30
+#define SMSC_PRIMARY_BASE_INDEX  0x60
+#define SMSC_SECONDARY_BASE_INDEX 0x62
+#define SMSC_PRIMARY_INT_INDEX  0x70
+#define SMSC_SECONDARY_INT_INDEX 0x72
+
+#define SMSC_IDE1_DEVICE        1
+#define SMSC_KEYBOARD_DEVICE    7
+#define SMSC_CONFIG_REGISTERS   8
+
+#define SMSC_SUPERIO_READ_INDEXED(index) ({ \
+        outb((index), SMSC_INDEX_PORT_ADDR); \
+        inb(SMSC_DATA_PORT_ADDR); })
+#define SMSC_SUPERIO_WRITE_INDEXED(val, index) ({ \
+        outb((index), SMSC_INDEX_PORT_ADDR); \
+        outb((val),   SMSC_DATA_PORT_ADDR); })
+
+#define IDE1_PRIMARY_BASE       0x01f0
+#define IDE1_SECONDARY_BASE     0x03f6
+
+unsigned long smsc_superio_virt;
+
+/*
+ * Platform dependent structures: maps and parms block.
+ */
+struct resource io_resources[] = {
+        /* To be updated with external devices */
+};
+
+struct resource kram_resources[] = {
+        { "Kernel code", 0, 0 },        /* These must be last in the array */
+        { "Kernel data", 0, 0 }         /* These must be last in the array */
+};
+
+struct resource xram_resources[] = {
+        /* To be updated with external devices */
+};
+
+struct resource rom_resources[] = {
+        /* To be updated with external devices */
+};
+
+struct sh64_platform platform_parms = {
+        .readonly_rootfs =      1,
+        .initial_root_dev =     0x0100,
+        .loader_type =          1,
+        .io_res_p =             io_resources,
+        .io_res_count =         ARRAY_SIZE(io_resources),
+        .kram_res_p =           kram_resources,
+        .kram_res_count =       ARRAY_SIZE(kram_resources),
+        .xram_res_p =           xram_resources,
+        .xram_res_count =       ARRAY_SIZE(xram_resources),
+        .rom_res_p =            rom_resources,
+        .rom_res_count =        ARRAY_SIZE(rom_resources),
+};
+
+int platform_int_priority[NR_INTC_IRQS] = {
+        IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD, /* IRQ  0- 7 */
+        RES, RES, RES, RES, SER, ERR, PW3, PW2, /* IRQ  8-15 */
+        PW1, PW0, DM0, DM1, DM2, DM3, DAE, RES, /* IRQ 16-23 */
+        RES, RES, RES, RES, RES, RES, RES, RES, /* IRQ 24-31 */
+        TU0, TU1, TU2, TI2, ATI, PRI, CUI, ERI, /* IRQ 32-39 */
+        RXI, BRI, TXI, RES, RES, RES, RES, RES, /* IRQ 40-47 */
+        RES, RES, RES, RES, RES, RES, RES, RES, /* IRQ 48-55 */
+        RES, RES, RES, RES, RES, RES, RES, ITI, /* IRQ 56-63 */
+};
+
+static int __init smsc_superio_setup(void)
+{
+        unsigned char devid, devrev;
+
+        smsc_superio_virt = onchip_remap(SMSC_SUPERIO_BASE, 1024, "SMSC SuperIO");
+        if (!smsc_superio_virt) {
+                panic("Unable to remap SMSC SuperIO\n");
+        }
+
+        /* Initially the chip is in run state */
+        /* Put it into configuration state */
+        outb(SMSC_ENTER_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
+        outb(SMSC_ENTER_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
+
+        /* Read device ID info */
+        devid = SMSC_SUPERIO_READ_INDEXED(SMSC_DEVICE_ID_INDEX);
+        devrev = SMSC_SUPERIO_READ_INDEXED(SMSC_DEVICE_REV_INDEX);
+        printk("SMSC SuperIO devid %02x rev %02x\n", devid, devrev);
+
+        /* Select the keyboard device */
+        SMSC_SUPERIO_WRITE_INDEXED(SMSC_KEYBOARD_DEVICE, SMCS_LOGICAL_DEV_INDEX);
+
+        /* enable it */
+        SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_ACTIVATE_INDEX);
+
+        /* Select the interrupts */
+        /* On a PC keyboard is IRQ1, mouse is IRQ12 */
+        SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_PRIMARY_INT_INDEX);
+        SMSC_SUPERIO_WRITE_INDEXED(12, SMSC_SECONDARY_INT_INDEX);
+
+#ifdef CONFIG_IDE
+        /*
+         * Only IDE1 exists on the Cayman
+         */
+
+        /* Power it on */
+        SMSC_SUPERIO_WRITE_INDEXED(1 << SMSC_IDE1_DEVICE, 0x22);
+
+        SMSC_SUPERIO_WRITE_INDEXED(SMSC_IDE1_DEVICE, SMCS_LOGICAL_DEV_INDEX);
+        SMSC_SUPERIO_WRITE_INDEXED(1, SMSC_ACTIVATE_INDEX);
+
+        SMSC_SUPERIO_WRITE_INDEXED(IDE1_PRIMARY_BASE >> 8,
+                                   SMSC_PRIMARY_BASE_INDEX + 0);
+        SMSC_SUPERIO_WRITE_INDEXED(IDE1_PRIMARY_BASE & 0xff,
+                                   SMSC_PRIMARY_BASE_INDEX + 1);
+
+        SMSC_SUPERIO_WRITE_INDEXED(IDE1_SECONDARY_BASE >> 8,
+                                   SMSC_SECONDARY_BASE_INDEX + 0);
+        SMSC_SUPERIO_WRITE_INDEXED(IDE1_SECONDARY_BASE & 0xff,
+                                   SMSC_SECONDARY_BASE_INDEX + 1);
+
+        SMSC_SUPERIO_WRITE_INDEXED(14, SMSC_PRIMARY_INT_INDEX);
+
+        SMSC_SUPERIO_WRITE_INDEXED(SMSC_CONFIG_REGISTERS,
+                                   SMCS_LOGICAL_DEV_INDEX);
+
+        SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc2); /* GP42 = nIDE1_OE */
+        SMSC_SUPERIO_WRITE_INDEXED(0x01, 0xc5); /* GP45 = IDE1_IRQ */
+        SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc6); /* GP46 = nIOROP */
+        SMSC_SUPERIO_WRITE_INDEXED(0x00, 0xc7); /* GP47 = nIOWOP */
+#endif
+
+        /* Exit the configuraton state */
+        outb(SMSC_EXIT_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
+
+        return 0;
+}
+
+/* This is grotty, but, because kernel is always referenced on the link line
+ * before any devices, this is safe.
+ */
+__initcall(smsc_superio_setup);
+
+void __init platform_setup(void)
+{
+        /* Cayman platform leaves the decision to head.S, for now */
+        platform_parms.fpu_flags = fpu_in_use;
+}
+
+void __init platform_monitor(void)
+{
+        /* Nothing yet .. */
+}
+
+void __init platform_reserve(void)
+{
+        /* Nothing yet .. */
+}
+
+const char *get_system_type(void)
+{
+        return "Hitachi Cayman";
+}
+