Moved from freebios

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@862 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

src/pmc/altimus/mpc7410/mpc7410.c

@@ -0,0 +1,68 @@
+/* $Id$ */
+/* Copyright 2000  AG Electronics Ltd. */
+/* This code is distributed without warranty under the GPL v2 (see COPYING) */
+
+#include <ppc.h>
+#include <ppcreg.h>
+#include <types.h>
+#include <string.h>
+#include <pci.h>
+#include <printk.h>
+
+#define ONEMEG  0x00100000
+#define HALFMEG 0x00080000
+
+unsigned long memory_base = 0;
+unsigned long memory_top = 0;
+unsigned long memory_size = 0;
+
+//extern char __heap_end[];
+extern unsigned mpc107_config_memory(void);
+
+unsigned config_memory(unsigned offset)
+{
+    //extern char __start[];
+    //extern char __bss_start[];
+    //unsigned rom_image = (unsigned) __start & 0xfff00000;
+    //unsigned physical = rom_image + offset;
+    //unsigned codesize = (unsigned) __bss_start - rom_image;
+
+#if 0    
+    /* At this point, DBAT 0 is memory, 1 is variable, 2 is the rom image,
+       and 3 is IO. */
+    ppc_set_io_dbat_reloc(2, rom_image, physical, ONEMEG);
+    ppc_set_io_dbat (3, 0xf0000000, 0x10000000);
+    if ( rom_image != physical )
+	    ppc_set_ibats_reloc(rom_image, physical, ONEMEG);
+    else
+	    ppc_set_ibats(physical, ONEMEG);
+
+    printk_debug("bsp_init_memory...\n");
+#endif
+
+    ppc_setup_cpu(1); /* icache enable = 1 */
+    //ppc_enable_mmu();
+
+    memory_size = mpc107_config_memory();
+        
+    /* If we have some working RAM, we copy the code and rodata into it.
+     * This allows us to reprogram the flash later. */
+#if 0
+    if (memory_size)
+    {
+	unsigned onemeg = memory_size - ONEMEG;
+	ppc_set_mem_dbat_reloc(1, onemeg, onemeg, ONEMEG);
+        memcpy((void *)onemeg, (void *)rom_image, codesize);
+	memset((void *)(onemeg + codesize), 0, ONEMEG - codesize);
+        ppc_set_ibats_reloc2(rom_image, physical, onemeg, ONEMEG);
+        ppc_set_mem_dbat_reloc(2, rom_image, onemeg, ONEMEG);
+        make_coherent((void *)onemeg, ONEMEG);
+    }
+
+    ppc_set_memory_dbat (memory_size);
+#endif
+
+    //ppc_enable_dcache ();
+
+    return memory_size;
+}