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Commit 4aabab21 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 

* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (50 commits)
  [ARM] sa1100: remove boot time RTC initialisation
  [ARM] sa1100: stop doing our own rtc management over suspend
  [ARM] 4474/1: Do not check the PSR_F_BIT in valid_user_regs
  [ARM] 4473/2:  Take the HWCAP definitions out of the elf.h file
  [ARM] pxa: move platform devices to separate header file
  [ARM] pxa: move device registration into CPU-specific file
  [ARM] pxa: remove boot time RTC initialisation
  [ARM] pxa: stop doing our own rtc management over suspend
  [ARM] 4451/1: pxa: make dma.c generic and remove cpu specific dma code
  [ARM] 4450/1: pxa: add pxa25x_init_irq() and pxa27x_init_irq()
  [ARM] 4440/1: PXA: enable the checking of ICIP2 for IRQs
  [ARM] 4438/1: PXA: remove #ifdef .. #endif from pxa_gpio_demux_handler()
  [ARM] 4437/1: PXA: move the GPIO IRQ initialization code to pxa_init_irq_gpio()
  [ARM] 4436/1: PXA: move low IRQ initialization code to pxa_init_irq_low()
  [ARM] 4435/1: PXA: remove PXA_INTERNAL_IRQS
  [ARM] 4434/1: PXA: remove PXA_IRQ_SKIP
  [ARM] pxa: Fix PXA27x suspend type validation, remove pxa_pm_prepare()
  [ARM] pxa: move pm_ops structure into CPU specific files
  [ARM] pxa: introduce cpu_is_pxaXXX macros
  [ARM] pxa: remove MMC register defines from pxa-regs.h
  ...
parents bb50cbbd ca9ced7f

arch/arm/Kconfig

+5 −0
Original line number Diff line number Diff line
@@ -241,6 +241,9 @@ config ARCH_H720X 


config ARCH_IMX

	bool "IMX"

	select GENERIC_GPIO

	select GENERIC_TIME

	select GENERIC_CLOCKEVENTS

	help

	  Support for Motorola's i.MX family of processors (MX1, MXL).
@@ -308,6 +311,7 @@ config ARCH_L7200 


config ARCH_KS8695

	bool "Micrel/Kendin KS8695"

	select GENERIC_GPIO

	help

	  Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based

	  System-on-Chip devices.
@@ -384,6 +388,7 @@ config ARCH_DAVINCI 
	bool "TI DaVinci"

	select GENERIC_TIME

	select GENERIC_CLOCKEVENTS

	select GENERIC_GPIO

	help

	  Support for TI's DaVinci platform.

arch/arm/boot/compressed/.gitignore

+1 −0
Original line number Diff line number Diff line 
piggy.gz

font.c

arch/arm/boot/compressed/Makefile

+7 −6
Original line number Diff line number Diff line
@@ -6,15 +6,13 @@ 


HEAD	= head.o

OBJS	= misc.o

FONTC	= drivers/video/console/font_acorn_8x8.c



FONT = $(addprefix ../../../../drivers/video/console/, font_acorn_8x8.o)

FONTC	= $(srctree)/drivers/video/console/font_acorn_8x8.c



#

# Architecture dependencies

#

ifeq ($(CONFIG_ARCH_ACORN),y)

OBJS		+= ll_char_wr.o $(FONT)

OBJS		+= ll_char_wr.o font.o

endif



ifeq ($(CONFIG_ARCH_SHARK),y)
@@ -73,7 +71,7 @@ endif 


SEDFLAGS	= s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/



targets       := vmlinux vmlinux.lds piggy.gz piggy.o $(FONT) \

targets       := vmlinux vmlinux.lds piggy.gz piggy.o font.o font.c \

		 head.o misc.o $(OBJS)

EXTRA_CFLAGS  := -fpic

EXTRA_AFLAGS  :=
@@ -105,7 +103,10 @@ $(obj)/piggy.gz: $(obj)/../Image FORCE 


$(obj)/piggy.o:  $(obj)/piggy.gz FORCE



CFLAGS_font_acorn_8x8.o := -Dstatic=

CFLAGS_font.o := -Dstatic=



$(obj)/font.c: $(FONTC)

	$(call cmd,shipped)



$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile .config

	@sed "$(SEDFLAGS)" < $< > $@

arch/arm/boot/compressed/head-xscale.S

+0 −5
Original line number Diff line number Diff line
@@ -41,11 +41,6 @@ __XScale_start: 
		mov	r7, #MACH_TYPE_COTULLA_IDP

#endif



#ifdef  CONFIG_MACH_GTWX5715

               mov     r7, #(MACH_TYPE_GTWX5715 & 0xff)

               orr     r7, r7, #(MACH_TYPE_GTWX5715 & 0xff00)

#endif



#ifdef CONFIG_ARCH_IXP2000

		mov	r1, #-1

		mov	r0, #0xd6000000

arch/arm/boot/compressed/head.S

+92 −1
Original line number Diff line number Diff line
@@ -436,6 +436,28 @@ __armv4_mmu_cache_on: 
		mcr	p15, 0, r0, c8, c7, 0	@ flush I,D TLBs

		mov	pc, r12



__armv7_mmu_cache_on:

		mov	r12, lr

		mrc	p15, 0, r11, c0, c1, 4	@ read ID_MMFR0

		tst	r11, #0xf		@ VMSA

		blne	__setup_mmu

		mov	r0, #0

		mcr	p15, 0, r0, c7, c10, 4	@ drain write buffer

		tst	r11, #0xf		@ VMSA

		mcrne	p15, 0, r0, c8, c7, 0	@ flush I,D TLBs

		mrc	p15, 0, r0, c1, c0, 0	@ read control reg

		orr	r0, r0, #0x5000		@ I-cache enable, RR cache replacement

		orr	r0, r0, #0x003c		@ write buffer

		orrne	r0, r0, #1		@ MMU enabled

		movne	r1, #-1

		mcrne	p15, 0, r3, c2, c0, 0	@ load page table pointer

		mcrne	p15, 0, r1, c3, c0, 0	@ load domain access control

		mcr	p15, 0, r0, c1, c0, 0	@ load control register

		mrc	p15, 0, r0, c1, c0, 0	@ and read it back

		mov	r0, #0

		mcr	p15, 0, r0, c7, c5, 4	@ ISB

		mov	pc, r12



__arm6_mmu_cache_on:

		mov	r12, lr

		bl	__setup_mmu
@@ -622,11 +644,17 @@ proc_types: 
		b	__armv4_mmu_cache_flush



		.word	0x0007b000		@ ARMv6

		.word	0x0007f000

		.word	0x000ff000

		b	__armv4_mmu_cache_on

		b	__armv4_mmu_cache_off

		b	__armv6_mmu_cache_flush



		.word	0x000f0000		@ new CPU Id

		.word	0x000f0000

		b	__armv7_mmu_cache_on

		b	__armv7_mmu_cache_off

		b	__armv7_mmu_cache_flush



		.word	0			@ unrecognised type

		.word	0

		mov	pc, lr
@@ -674,6 +702,16 @@ __armv4_mmu_cache_off: 
		mcr	p15, 0, r0, c8, c7	@ invalidate whole TLB v4

		mov	pc, lr



__armv7_mmu_cache_off:

		mrc	p15, 0, r0, c1, c0

		bic	r0, r0, #0x000d

		mcr	p15, 0, r0, c1, c0	@ turn MMU and cache off

		mov	r12, lr

		bl	__armv7_mmu_cache_flush

		mov	r0, #0

		mcr	p15, 0, r0, c8, c7, 0	@ invalidate whole TLB

		mov	pc, r12



__arm6_mmu_cache_off:

		mov	r0, #0x00000030		@ ARM6 control reg.

		b	__armv3_mmu_cache_off
@@ -730,6 +768,59 @@ __armv6_mmu_cache_flush: 
		mcr	p15, 0, r1, c7, c10, 4	@ drain WB

		mov	pc, lr



__armv7_mmu_cache_flush:

		mrc	p15, 0, r10, c0, c1, 5	@ read ID_MMFR1

		tst	r10, #0xf << 16		@ hierarchical cache (ARMv7)

		beq	hierarchical

		mov	r10, #0

		mcr	p15, 0, r10, c7, c14, 0	@ clean+invalidate D

		b	iflush

hierarchical:

		stmfd	sp!, {r0-r5, r7, r9-r11}

		mrc	p15, 1, r0, c0, c0, 1	@ read clidr

		ands	r3, r0, #0x7000000	@ extract loc from clidr

		mov	r3, r3, lsr #23		@ left align loc bit field

		beq	finished		@ if loc is 0, then no need to clean

		mov	r10, #0			@ start clean at cache level 0

loop1:

		add	r2, r10, r10, lsr #1	@ work out 3x current cache level

		mov	r1, r0, lsr r2		@ extract cache type bits from clidr

		and	r1, r1, #7		@ mask of the bits for current cache only

		cmp	r1, #2			@ see what cache we have at this level

		blt	skip			@ skip if no cache, or just i-cache

		mcr	p15, 2, r10, c0, c0, 0	@ select current cache level in cssr

		mcr	p15, 0, r10, c7, c5, 4	@ isb to sych the new cssr&csidr

		mrc	p15, 1, r1, c0, c0, 0	@ read the new csidr

		and	r2, r1, #7		@ extract the length of the cache lines

		add	r2, r2, #4		@ add 4 (line length offset)

		ldr	r4, =0x3ff

		ands	r4, r4, r1, lsr #3	@ find maximum number on the way size

		.word	0xe16f5f14		@ clz r5, r4 - find bit position of way size increment

		ldr	r7, =0x7fff

		ands	r7, r7, r1, lsr #13	@ extract max number of the index size

loop2:

		mov	r9, r4			@ create working copy of max way size

loop3:

		orr	r11, r10, r9, lsl r5	@ factor way and cache number into r11

		orr	r11, r11, r7, lsl r2	@ factor index number into r11

		mcr	p15, 0, r11, c7, c14, 2	@ clean & invalidate by set/way

		subs	r9, r9, #1		@ decrement the way

		bge	loop3

		subs	r7, r7, #1		@ decrement the index

		bge	loop2

skip:

		add	r10, r10, #2		@ increment cache number

		cmp	r3, r10

		bgt	loop1

finished:

		mov	r10, #0			@ swith back to cache level 0

		mcr	p15, 2, r10, c0, c0, 0	@ select current cache level in cssr

		ldmfd	sp!, {r0-r5, r7, r9-r11}

iflush:

		mcr	p15, 0, r10, c7, c5, 0	@ invalidate I+BTB

		mcr	p15, 0, r10, c7, c10, 4	@ drain WB

		mov	pc, lr



__armv4_mmu_cache_flush:

		mov	r2, #64*1024		@ default: 32K dcache size (*2)

		mov	r11, #32		@ default: 32 byte line size