[MIPS] TXx9: Add 64-bit support

SYS_SUPPORTS_64BIT_KERNEL is enabled for RBTX4927/RBTX4938, but
actually it was broken for long time (or from the beginning).  Now it
should work.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 14 insertions, 2 deletions

diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
index 8caef07701bb..3715a8f5ea44 100644
--- a/arch/mips/txx9/generic/setup.c
+++ b/arch/mips/txx9/generic/setup.c
@@ -30,6 +30,7 @@ struct resource txx9_ce_res[8];
 static char txx9_ce_res_name[8][4];     /* "CEn" */
 
 /* pcode, internal register */
+unsigned int txx9_pcode;
 char txx9_pcode_str[8];
 static struct resource txx9_reg_res = {
         .name = txx9_pcode_str,
@@ -59,15 +60,16 @@ unsigned int txx9_master_clock;
 unsigned int txx9_cpu_clock;
 unsigned int txx9_gbus_clock;
 
+int txx9_ccfg_toeon __initdata = 1;
 
 /* 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);
+                return (struct clk *)((unsigned long)txx9_gbus_clock / 2 / 4);
         if (!strcmp(id, "imbus_clk"))
-                return (struct clk *)(txx9_gbus_clock / 2);
+                return (struct clk *)((unsigned long)txx9_gbus_clock / 2);
         return ERR_PTR(-ENOENT);
 }
 EXPORT_SYMBOL(clk_get);
@@ -123,6 +125,12 @@ 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] */
+#ifdef CONFIG_64BIT
+        char *fixed_argv[32];
+        for (i = 0; i < argc; i++)
+                fixed_argv[i] = (char *)(long)(*((__s32 *)argv + i));
+        argv = fixed_argv;
+#endif
 
         /* ignore all built-in args if any f/w args given */
         if (argc > 1)
@@ -180,6 +188,10 @@ char * __init prom_getcmdline(void)
 /* wrappers */
 void __init plat_mem_setup(void)
 {
+        ioport_resource.start = 0;
+        ioport_resource.end = ~0UL;     /* no limit */
+        iomem_resource.start = 0;
+        iomem_resource.end = ~0UL;      /* no limit */
         txx9_board_vec->mem_setup();
 }