From 032211593248d4d9a569ecfd269a2433ea5b1c7c Mon Sep 17 00:00:00 2001 From: Greg Watson Date: Mon, 9 Jun 2003 21:29:23 +0000 Subject: Moved from freebios git-svn-id: svn://svn.coreboot.org/coreboot/trunk@862 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- src/pmc/altimus/mpc7410/mpc7410.c | 68 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 src/pmc/altimus/mpc7410/mpc7410.c (limited to 'src/pmc/altimus') diff --git a/src/pmc/altimus/mpc7410/mpc7410.c b/src/pmc/altimus/mpc7410/mpc7410.c new file mode 100644 index 0000000000..ee1dc4b096 --- /dev/null +++ b/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 +#include +#include +#include +#include +#include + +#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; +} -- cgit v1.2.3