1 files changed, 159 insertions, 0 deletions

diff --git a/arch/ppc/platforms/4xx/redwood6.c b/arch/ppc/platforms/4xx/redwood6.c
new file mode 100644
index 000000000000..8b1012994dfc
--- /dev/null
+++ b/arch/ppc/platforms/4xx/redwood6.c
@@ -0,0 +1,159 @@
+/*
+ * arch/ppc/platforms/4xx/redwood6.c
+ *
+ * Author: Armin Kuster <akuster@mvista.com>
+ *
+ * 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/init.h>
+#include <linux/pagemap.h>
+#include <linux/device.h>
+#include <linux/ioport.h>
+#include <asm/io.h>
+#include <asm/ppc4xx_pic.h>
+#include <linux/delay.h>
+#include <asm/machdep.h>
+
+/*
+ * Define external IRQ senses and polarities.
+ */
+unsigned char ppc4xx_uic_ext_irq_cfg[] __initdata = {
+        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 7 */
+        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 8 */
+        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 9 */
+        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 0 */
+        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 1 */
+        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 2 */
+        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 3 */
+        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 4 */
+        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 5 */
+        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 6 */
+};
+
+static struct resource smc91x_resources[] = {
+        [0] = {
+                .start  = SMC91111_BASE_ADDR,
+                .end    = SMC91111_BASE_ADDR + SMC91111_REG_SIZE - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = SMC91111_IRQ,
+                .end    = SMC91111_IRQ,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device smc91x_device = {
+        .name           = "smc91x",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(smc91x_resources),
+        .resource       = smc91x_resources,
+};
+
+static struct platform_device *redwood6_devs[] __initdata = {
+        &smc91x_device,
+};
+
+static int __init
+redwood6_platform_add_devices(void)
+{
+        return platform_add_devices(redwood6_devs, ARRAY_SIZE(redwood6_devs));
+}
+
+
+void __init
+redwood6_setup_arch(void)
+{
+#ifdef CONFIG_IDE
+        void *xilinx, *xilinx_1, *xilinx_2;
+        unsigned short us_reg5;
+#endif
+
+        ppc4xx_setup_arch();
+
+#ifdef CONFIG_IDE
+        xilinx = (unsigned long) ioremap(IDE_XLINUX_MUX_BASE, 0x10);
+        /* init xilinx control registers - enable ide mux, clear reset bit */
+        if (!xilinx) {
+                printk(KERN_CRIT
+                       "redwood6_setup_arch() xilinxi ioremap failed\n");
+                return;
+        }
+        xilinx_1 = xilinx + 0xa;
+        xilinx_2 = xilinx + 0xe;
+
+        us_reg5 = readb(xilinx_1);
+        writeb(0x01d1, xilinx_1);
+        writeb(0x0008, xilinx_2);
+
+        udelay(10 * 1000);
+
+        writeb(0x01d1, xilinx_1);
+        writeb(0x0008, xilinx_2);
+#endif
+
+#ifdef DEBUG_BRINGUP
+        bd_t *bip = (bd_t *) __res;
+        printk("\n");
+        printk("machine\t: %s\n", PPC4xx_MACHINE_NAME);
+        printk("\n");
+        printk("bi_s_version\t %s\n", bip->bi_s_version);
+        printk("bi_r_version\t %s\n", bip->bi_r_version);
+        printk("bi_memsize\t 0x%8.8x\t %dMBytes\n", bip->bi_memsize,
+               bip->bi_memsize / (1024 * 1000));
+        printk("bi_enetaddr %d\t %2.2x%2.2x%2.2x-%2.2x%2.2x%2.2x\n", 0,
+               bip->bi_enetaddr[0], bip->bi_enetaddr[1], bip->bi_enetaddr[2],
+               bip->bi_enetaddr[3], bip->bi_enetaddr[4], bip->bi_enetaddr[5]);
+
+        printk("bi_intfreq\t 0x%8.8x\t clock:\t %dMhz\n",
+               bip->bi_intfreq, bip->bi_intfreq / 1000000);
+
+        printk("bi_busfreq\t 0x%8.8x\t plb bus clock:\t %dMHz\n",
+               bip->bi_busfreq, bip->bi_busfreq / 1000000);
+        printk("bi_tbfreq\t 0x%8.8x\t TB freq:\t %dMHz\n",
+               bip->bi_tbfreq, bip->bi_tbfreq / 1000000);
+
+        printk("\n");
+#endif
+
+        /* Identify the system */
+        printk(KERN_INFO "IBM Redwood6 (STBx25XX) Platform\n");
+        printk(KERN_INFO
+               "Port by MontaVista Software, Inc. (source@mvista.com)\n");
+
+        device_initcall(redwood6_platform_add_devices);
+}
+
+void __init
+redwood6_map_io(void)
+{
+        int i;
+
+        ppc4xx_map_io();
+        for (i = 0; i < 16; i++) {
+                unsigned long v, p;
+
+                /* 0x400x0000 -> 0xe00x0000 */
+                p = 0x40000000 | (i << 16);
+                v = STBx25xx_IO_BASE | (i << 16);
+
+                io_block_mapping(v, p, PAGE_SIZE,
+                                 _PAGE_NO_CACHE | pgprot_val(PAGE_KERNEL) |
+                                 _PAGE_GUARDED);
+        }
+}
+
+void __init
+platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
+              unsigned long r6, unsigned long r7)
+{
+        ppc4xx_init(r3, r4, r5, r6, r7);
+
+        ppc_md.setup_arch = redwood6_setup_arch;
+        ppc_md.setup_io_mappings = redwood6_map_io;
+}