summaryrefslogtreecommitdiffstats
path: root/arch/ppc/boot/of1275/claim.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/ppc/boot/of1275/claim.c')
-rw-r--r--arch/ppc/boot/of1275/claim.c92
1 files changed, 0 insertions, 92 deletions
diff --git a/arch/ppc/boot/of1275/claim.c b/arch/ppc/boot/of1275/claim.c
deleted file mode 100644
index 1ed3aeeff8a..00000000000
--- a/arch/ppc/boot/of1275/claim.c
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * Copyright (C) Paul Mackerras 1997.
- * Copyright (C) Leigh Brown 2002.
- *
- * 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 "of1275.h"
-#include "nonstdio.h"
-
-/*
- * Older OF's require that when claiming a specific range of addresses,
- * we claim the physical space in the /memory node and the virtual
- * space in the chosen mmu node, and then do a map operation to
- * map virtual to physical.
- */
-static int need_map = -1;
-static ihandle chosen_mmu;
-static phandle memory;
-
-/* returns true if s2 is a prefix of s1 */
-static int string_match(const char *s1, const char *s2)
-{
- for (; *s2; ++s2)
- if (*s1++ != *s2)
- return 0;
- return 1;
-}
-
-static int check_of_version(void)
-{
- phandle oprom, chosen;
- char version[64];
-
- oprom = finddevice("/openprom");
- if (oprom == OF_INVALID_HANDLE)
- return 0;
- if (getprop(oprom, "model", version, sizeof(version)) <= 0)
- return 0;
- version[sizeof(version)-1] = 0;
- printf("OF version = '%s'\n", version);
- if (!string_match(version, "Open Firmware, 1.")
- && !string_match(version, "FirmWorks,3."))
- return 0;
- chosen = finddevice("/chosen");
- if (chosen == OF_INVALID_HANDLE) {
- chosen = finddevice("/chosen@0");
- if (chosen == OF_INVALID_HANDLE) {
- printf("no chosen\n");
- return 0;
- }
- }
- if (getprop(chosen, "mmu", &chosen_mmu, sizeof(chosen_mmu)) <= 0) {
- printf("no mmu\n");
- return 0;
- }
- memory = (ihandle) call_prom("open", 1, 1, "/memory");
- if (memory == OF_INVALID_HANDLE) {
- memory = (ihandle) call_prom("open", 1, 1, "/memory@0");
- if (memory == OF_INVALID_HANDLE) {
- printf("no memory node\n");
- return 0;
- }
- }
- printf("old OF detected\n");
- return 1;
-}
-
-void *claim(unsigned int virt, unsigned int size, unsigned int align)
-{
- int ret;
- unsigned int result;
-
- if (need_map < 0)
- need_map = check_of_version();
- if (align || !need_map)
- return (void *) call_prom("claim", 3, 1, virt, size, align);
-
- ret = call_prom_ret("call-method", 5, 2, &result, "claim", memory,
- align, size, virt);
- if (ret != 0 || result == -1)
- return (void *) -1;
- ret = call_prom_ret("call-method", 5, 2, &result, "claim", chosen_mmu,
- align, size, virt);
- /* 0x12 == coherent + read/write */
- ret = call_prom("call-method", 6, 1, "map", chosen_mmu,
- 0x12, size, virt, virt);
- return virt;
-}