1 files changed, 212 insertions, 0 deletions

diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
new file mode 100644
index 000000000000..5afc5d5cab03
--- /dev/null
+++ b/arch/mips/txx9/generic/setup.c
@@ -0,0 +1,212 @@
+/*
+ * linux/arch/mips/txx9/generic/setup.c
+ *
+ * Based on linux/arch/mips/txx9/rbtx4938/setup.c,
+ *          and RBTX49xx patch from CELF patch archive.
+ *
+ * 2003-2005 (c) MontaVista Software, Inc.
+ * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
+ *
+ * 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.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/string.h>
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <asm/bootinfo.h>
+#include <asm/txx9/generic.h>
+#ifdef CONFIG_CPU_TX49XX
+#include <asm/txx9/tx4938.h>
+#endif
+
+/* EBUSC settings of TX4927, etc. */
+struct resource txx9_ce_res[8];
+static char txx9_ce_res_name[8][4];     /* "CEn" */
+
+/* pcode, internal register */
+char txx9_pcode_str[8];
+static struct resource txx9_reg_res = {
+        .name = txx9_pcode_str,
+        .flags = IORESOURCE_MEM,
+};
+void __init
+txx9_reg_res_init(unsigned int pcode, unsigned long base, unsigned long size)
+{
+        int i;
+
+        for (i = 0; i < ARRAY_SIZE(txx9_ce_res); i++) {
+                sprintf(txx9_ce_res_name[i], "CE%d", i);
+                txx9_ce_res[i].flags = IORESOURCE_MEM;
+                txx9_ce_res[i].name = txx9_ce_res_name[i];
+        }
+
+        sprintf(txx9_pcode_str, "TX%x", pcode);
+        if (base) {
+                txx9_reg_res.start = base & 0xfffffffffULL;
+                txx9_reg_res.end = (base & 0xfffffffffULL) + (size - 1);
+                request_resource(&iomem_resource, &txx9_reg_res);
+        }
+}
+
+/* clocks */
+unsigned int txx9_master_clock;
+unsigned int txx9_cpu_clock;
+unsigned int txx9_gbus_clock;
+
+
+/* Minimum CLK support */
+
+struct clk *clk_get(struct device *dev, const char *id)
+{
+        if (!strcmp(id, "spi-baseclk"))
+                return (struct clk *)(txx9_gbus_clock / 2 / 4);
+        if (!strcmp(id, "imbus_clk"))
+                return (struct clk *)(txx9_gbus_clock / 2);
+        return ERR_PTR(-ENOENT);
+}
+EXPORT_SYMBOL(clk_get);
+
+int clk_enable(struct clk *clk)
+{
+        return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_disable);
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+        return (unsigned long)clk;
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+void clk_put(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_put);
+
+extern struct txx9_board_vec jmr3927_vec;
+extern struct txx9_board_vec rbtx4927_vec;
+extern struct txx9_board_vec rbtx4937_vec;
+extern struct txx9_board_vec rbtx4938_vec;
+
+struct txx9_board_vec *txx9_board_vec __initdata;
+static char txx9_system_type[32];
+
+void __init prom_init_cmdline(void)
+{
+        int argc = (int)fw_arg0;
+        char **argv = (char **)fw_arg1;
+        int i;                  /* Always ignore the "-c" at argv[0] */
+
+        /* ignore all built-in args if any f/w args given */
+        if (argc > 1)
+                *arcs_cmdline = '\0';
+
+        for (i = 1; i < argc; i++) {
+                if (i != 1)
+                        strcat(arcs_cmdline, " ");
+                strcat(arcs_cmdline, argv[i]);
+        }
+}
+
+void __init prom_init(void)
+{
+#ifdef CONFIG_CPU_TX39XX
+        txx9_board_vec = &jmr3927_vec;
+#endif
+#ifdef CONFIG_CPU_TX49XX
+        switch (TX4938_REV_PCODE()) {
+        case 0x4927:
+                txx9_board_vec = &rbtx4927_vec;
+                break;
+        case 0x4937:
+                txx9_board_vec = &rbtx4937_vec;
+                break;
+        case 0x4938:
+                txx9_board_vec = &rbtx4938_vec;
+                break;
+        }
+#endif
+
+        strcpy(txx9_system_type, txx9_board_vec->system);
+
+        txx9_board_vec->prom_init();
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
+
+const char *get_system_type(void)
+{
+        return txx9_system_type;
+}
+
+char * __init prom_getcmdline(void)
+{
+        return &(arcs_cmdline[0]);
+}
+
+/* wrappers */
+void __init plat_mem_setup(void)
+{
+        txx9_board_vec->mem_setup();
+}
+
+void __init arch_init_irq(void)
+{
+        txx9_board_vec->irq_setup();
+}
+
+void __init plat_time_init(void)
+{
+        txx9_board_vec->time_init();
+}
+
+static int __init _txx9_arch_init(void)
+{
+        if (txx9_board_vec->arch_init)
+                txx9_board_vec->arch_init();
+        return 0;
+}
+arch_initcall(_txx9_arch_init);
+
+static int __init _txx9_device_init(void)
+{
+        if (txx9_board_vec->device_init)
+                txx9_board_vec->device_init();
+        return 0;
+}
+device_initcall(_txx9_device_init);
+
+int (*txx9_irq_dispatch)(int pending);
+asmlinkage void plat_irq_dispatch(void)
+{
+        int pending = read_c0_status() & read_c0_cause() & ST0_IM;
+        int irq = txx9_irq_dispatch(pending);
+
+        if (likely(irq >= 0))
+                do_IRQ(irq);
+        else
+                spurious_interrupt();
+}
+
+/* see include/asm-mips/mach-tx39xx/mangle-port.h, for example. */
+#ifdef NEEDS_TXX9_SWIZZLE_ADDR_B
+static unsigned long __swizzle_addr_none(unsigned long port)
+{
+        return port;
+}
+unsigned long (*__swizzle_addr_b)(unsigned long port) = __swizzle_addr_none;
+EXPORT_SYMBOL(__swizzle_addr_b);
+#endif