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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-08 10:04:20 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-08 10:04:20 -0800
commit21eb4fa1700112d1420d72e1de708af671a251c8 (patch)
tree3afd9f526da50108c27e05ac69826be5e7c2ad6e /arch/ppc/platforms/gemini_prom.S
parent0c0e8caf9fd6c9a49fb9fbdba14a8b7b4239adde (diff)
parentd003e7a1a569501cbe9a5ca14748177498c4893a (diff)
Merge master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc
* master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc: (116 commits) [POWERPC] Add export of vgacon_remap_base [POWERPC] Remove bogus comment about page_is_ram [POWERPC] windfarm: don't die on suspend thread signal [POWERPC] Fix comment in kernel/irq.c [POWERPC] ppc: Fix booke watchdog initialization [POWERPC] PPC: Use ARRAY_SIZE macro when appropriate [POWERPC] Use ARRAY_SIZE macro when appropriate [POWERPC] Fix ppc64's writing to struct file_operations [POWERPC] ppc: use syslog macro for the printk log level [POWERPC] ppc: cs4218_tdm remove extra brace [POWERPC] Add mpc52xx/lite5200 PCI support [POWERPC] Only use H_BULK_REMOVE if the firmware supports it [POWERPC] Fixup error handling when emulating a floating point instruction [POWERPC] Enable interrupts if we are doing fp math emulation [POWERPC] Added kprobes support to ppc32 [POWERPC] Make pSeries use the H_BULK_REMOVE hypervisor call [POWERPC] Clear RI bit in MSR before restoring r13 when returning to userspace [POWERPC] Fix performance monitor exception [POWERPC] Compile fixes for arch/powerpc dcr code [POWERPC] Maple: use mmio nvram ...
Diffstat (limited to 'arch/ppc/platforms/gemini_prom.S')
-rw-r--r--arch/ppc/platforms/gemini_prom.S90
1 files changed, 0 insertions, 90 deletions
diff --git a/arch/ppc/platforms/gemini_prom.S b/arch/ppc/platforms/gemini_prom.S
deleted file mode 100644
index e8c84d24f01f..000000000000
--- a/arch/ppc/platforms/gemini_prom.S
+++ /dev/null
@@ -1,90 +0,0 @@
-/*
- * Not really prom support code (yet), but sort of anti-prom code. The current
- * bootloader does a number of things it shouldn't and doesn't do things that it
- * should. The stuff in here is mainly a hodge-podge collection of setup code
- * to get the board up and running.
- * ---Dan
- */
-
-#include <asm/reg.h>
-#include <asm/page.h>
-#include <platforms/gemini.h>
-#include <asm/ppc_asm.h>
-
-/*
- * On 750's the MMU is on when Linux is booted, so we need to clear out the
- * bootloader's BAT settings, make sure we're in supervisor state (gotcha!),
- * and turn off the MMU.
- *
- */
-
-_GLOBAL(gemini_prom_init)
-#ifdef CONFIG_SMP
- /* Since the MMU's on, get stuff in rom space that we'll need */
- lis r4,GEMINI_CPUSTAT@h
- ori r4,r4,GEMINI_CPUSTAT@l
- lbz r5,0(r4)
- andi. r5,r5,3
- mr r24,r5 /* cpu # used later on */
-#endif
- mfmsr r4
- li r3,MSR_PR /* ensure supervisor! */
- ori r3,r3,MSR_IR|MSR_DR
- andc r4,r4,r3
- mtmsr r4
- isync
-#if 0
- /* zero out the bats now that the MMU is off */
-prom_no_mmu:
- li r3,0
- mtspr SPRN_IBAT0U,r3
- mtspr SPRN_IBAT0L,r3
- mtspr SPRN_IBAT1U,r3
- mtspr SPRN_IBAT1L,r3
- mtspr SPRN_IBAT2U,r3
- mtspr SPRN_IBAT2L,r3
- mtspr SPRN_IBAT3U,r3
- mtspr SPRN_IBAT3L,r3
-
- mtspr SPRN_DBAT0U,r3
- mtspr SPRN_DBAT0L,r3
- mtspr SPRN_DBAT1U,r3
- mtspr SPRN_DBAT1L,r3
- mtspr SPRN_DBAT2U,r3
- mtspr SPRN_DBAT2L,r3
- mtspr SPRN_DBAT3U,r3
- mtspr SPRN_DBAT3L,r3
-#endif
-
- /* the bootloader (as far as I'm currently aware) doesn't mess with page
- tables, but since we're already here, might as well zap these, too */
- li r4,0
- mtspr SPRN_SDR1,r4
-
- li r4,16
- mtctr r4
- li r3,0
- li r4,0
-3: mtsrin r3,r4
- addi r3,r3,1
- bdnz 3b
-
-#ifdef CONFIG_SMP
- /* The 750 book (and Mot/IBM support) says that this will "assist" snooping
- when in SMP. Not sure yet whether this should stay or leave... */
- mfspr r4,SPRN_HID0
- ori r4,r4,HID0_ABE
- mtspr SPRN_HID0,r4
- sync
-#endif /* CONFIG_SMP */
- blr
-
-/* apparently, SMon doesn't pay attention to HID0[SRST]. Disable the MMU and
- branch to 0xfff00100 */
-_GLOBAL(_gemini_reboot)
- lis r5,GEMINI_BOOT_INIT@h
- ori r5,r5,GEMINI_BOOT_INIT@l
- li r6,MSR_IP
- mtspr SPRN_SRR0,r5
- mtspr SPRN_SRR1,r6
- rfi