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Diffstat (limited to 'arch/mips/ddb5xxx/common/prom.c')
-rw-r--r--arch/mips/ddb5xxx/common/prom.c132
1 files changed, 0 insertions, 132 deletions
diff --git a/arch/mips/ddb5xxx/common/prom.c b/arch/mips/ddb5xxx/common/prom.c
deleted file mode 100644
index 54a857b5e3b..00000000000
--- a/arch/mips/ddb5xxx/common/prom.c
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * Copyright 2001 MontaVista Software Inc.
- * Author: jsun@mvista.com or jsun@junsun.net
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/bootmem.h>
-
-#include <asm/addrspace.h>
-#include <asm/bootinfo.h>
-#include <asm/ddb5xxx/ddb5xxx.h>
-#include <asm/debug.h>
-
-const char *get_system_type(void)
-{
- switch (mips_machtype) {
- case MACH_NEC_DDB5477: return "NEC DDB Vrc-5477";
- case MACH_NEC_ROCKHOPPER: return "NEC Rockhopper";
- case MACH_NEC_ROCKHOPPERII: return "NEC RockhopperII";
- default: return "Unknown NEC board";
- }
-}
-
-#if defined(CONFIG_DDB5477)
-void ddb5477_runtime_detection(void);
-#endif
-
-/* [jsun@junsun.net] PMON passes arguments in C main() style */
-void __init prom_init(void)
-{
- int argc = fw_arg0;
- char **arg = (char**) fw_arg1;
- int i;
-
- /* if user passes kernel args, ignore the default one */
- if (argc > 1)
- arcs_cmdline[0] = '\0';
-
- /* arg[0] is "g", the rest is boot parameters */
- for (i = 1; i < argc; i++) {
- if (strlen(arcs_cmdline) + strlen(arg[i] + 1)
- >= sizeof(arcs_cmdline))
- break;
- strcat(arcs_cmdline, arg[i]);
- strcat(arcs_cmdline, " ");
- }
-
- mips_machgroup = MACH_GROUP_NEC_DDB;
-
-#if defined(CONFIG_DDB5477)
- ddb5477_runtime_detection();
- add_memory_region(0, board_ram_size, BOOT_MEM_RAM);
-#endif
-}
-
-void __init prom_free_prom_memory(void)
-{
-}
-
-#if defined(CONFIG_DDB5477)
-
-#define DEFAULT_LCS1_BASE 0x19000000
-#define TESTVAL1 'K'
-#define TESTVAL2 'S'
-
-int board_ram_size;
-void ddb5477_runtime_detection(void)
-{
- volatile char *test_offset;
- char saved_test_byte;
-
- /* Determine if this is a DDB5477 board, or a BSB-VR0300
- base board. We can tell by checking for the location of
- the NVRAM. It lives at the beginning of LCS1 on the DDB5477,
- and the beginning of LCS1 on the BSB-VR0300 is flash memory.
- The first 2K of the NVRAM are reserved, so don't we'll poke
- around just after that.
- */
-
- /* We can only use the PCI bus to distinquish between
- the Rockhopper and RockhopperII backplanes and this must
- wait until ddb5477_board_init() in setup.c after the 5477
- is initialized. So, until then handle
- both Rockhopper and RockhopperII backplanes as Rockhopper 1
- */
-
- test_offset = (char *)KSEG1ADDR(DEFAULT_LCS1_BASE + 0x800);
- saved_test_byte = *test_offset;
-
- *test_offset = TESTVAL1;
- if (*test_offset != TESTVAL1) {
- /* We couldn't set our test value, so it must not be NVRAM,
- so it's a BSB_VR0300 */
- mips_machtype = MACH_NEC_ROCKHOPPER;
- } else {
- /* We may have gotten lucky, and the TESTVAL1 was already
- stored at the test location, so we must check a second
- test value */
- *test_offset = TESTVAL2;
- if (*test_offset != TESTVAL2) {
- /* OK, we couldn't set this value either, so it must
- definately be a BSB_VR0300 */
- mips_machtype = MACH_NEC_ROCKHOPPER;
- } else {
- /* We could change the value twice, so it must be
- NVRAM, so it's a DDB_VRC5477 */
- mips_machtype = MACH_NEC_DDB5477;
- }
- }
- /* Restore the original byte */
- *test_offset = saved_test_byte;
-
- /* before we know a better way, we will trust PMON for getting
- * RAM size
- */
- board_ram_size = 1 << (36 - (ddb_in32(DDB_SDRAM0) & 0xf));
-
- db_run(printk("DDB run-time detection : %s, %d MB RAM\n",
- mips_machtype == MACH_NEC_DDB5477 ?
- "DDB5477" : "Rockhopper",
- board_ram_size >> 20));
-
- /* we can't handle ram size > 128 MB */
- db_assert(board_ram_size <= (128 << 20));
-}
-#endif