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-rw-r--r--arch/arm/Kconfig99
-rw-r--r--arch/arm/boot/Makefile8
-rw-r--r--arch/arm/boot/compressed/Makefile3
-rw-r--r--arch/arm/boot/compressed/head.S12
4 files changed, 112 insertions, 10 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a53ac6570b6..0b0cf0d2872 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1490,6 +1490,105 @@ config ATAGS_PROC
Should the atags used to boot the kernel be exported in an "atags"
file in procfs. Useful with kexec.
+config AUTO_ZRELADDR
+ bool "Auto calculation of the decompressed kernel image address"
+ depends on !ZBOOT_ROM && !ARCH_U300
+ help
+ ZRELADDR is the physical address where the decompressed kernel
+ image will be placed. If AUTO_ZRELADDR is selected, the address
+ will be determined at run-time by masking the current IP with
+ 0xf8000000. This assumes the zImage being placed in the first 128MB
+ from start of memory.
+
+config ZRELADDR
+ hex "Physical address of the decompressed kernel image"
+ depends on !AUTO_ZRELADDR
+ default 0x00008000 if ARCH_BCMRING ||\
+ ARCH_CNS3XXX ||\
+ ARCH_DOVE ||\
+ ARCH_EBSA110 ||\
+ ARCH_FOOTBRIDGE ||\
+ ARCH_INTEGRATOR ||\
+ ARCH_IOP13XX ||\
+ ARCH_IOP33X ||\
+ ARCH_IXP2000 ||\
+ ARCH_IXP23XX ||\
+ ARCH_IXP4XX ||\
+ ARCH_KIRKWOOD ||\
+ ARCH_KS8695 ||\
+ ARCH_LOKI ||\
+ ARCH_MMP ||\
+ ARCH_MV78XX0 ||\
+ ARCH_NOMADIK ||\
+ ARCH_NUC93X ||\
+ ARCH_NS9XXX ||\
+ ARCH_ORION5X ||\
+ ARCH_SPEAR3XX ||\
+ ARCH_SPEAR6XX ||\
+ ARCH_U8500 ||\
+ ARCH_VERSATILE ||\
+ ARCH_W90X900
+ default 0x08008000 if ARCH_MX1 ||\
+ ARCH_SHARK
+ default 0x10008000 if ARCH_MSM ||\
+ ARCH_OMAP1 ||\
+ ARCH_RPC
+ default 0x20008000 if ARCH_S5P6440 ||\
+ ARCH_S5P6442 ||\
+ ARCH_S5PC100 ||\
+ ARCH_S5PV210
+ default 0x30008000 if ARCH_S3C2410 ||\
+ ARCH_S3C2400 ||\
+ ARCH_S3C2412 ||\
+ ARCH_S3C2416 ||\
+ ARCH_S3C2440 ||\
+ ARCH_S3C2443
+ default 0x40008000 if ARCH_STMP378X ||\
+ ARCH_STMP37XX ||\
+ ARCH_SH7372 ||\
+ ARCH_SH7377
+ default 0x50008000 if ARCH_S3C64XX ||\
+ ARCH_SH7367
+ default 0x60008000 if ARCH_VEXPRESS
+ default 0x80008000 if ARCH_MX25 ||\
+ ARCH_MX3 ||\
+ ARCH_NETX ||\
+ ARCH_OMAP2PLUS ||\
+ ARCH_PNX4008
+ default 0x90008000 if ARCH_MX5 ||\
+ ARCH_MX91231
+ default 0xa0008000 if ARCH_IOP32X ||\
+ ARCH_PXA ||\
+ MACH_MX27
+ default 0xc0008000 if ARCH_LH7A40X ||\
+ MACH_MX21
+ default 0xf0008000 if ARCH_AAEC2000 ||\
+ ARCH_L7200
+ default 0xc0028000 if ARCH_CLPS711X
+ default 0x70008000 if ARCH_AT91 && (ARCH_AT91CAP9 || ARCH_AT91SAM9G45)
+ default 0x20008000 if ARCH_AT91 && !(ARCH_AT91CAP9 || ARCH_AT91SAM9G45)
+ default 0xc0008000 if ARCH_DAVINCI && ARCH_DAVINCI_DA8XX
+ default 0x80008000 if ARCH_DAVINCI && !ARCH_DAVINCI_DA8XX
+ default 0x00008000 if ARCH_EP93XX && EP93XX_SDCE3_SYNC_PHYS_OFFSET
+ default 0xc0008000 if ARCH_EP93XX && EP93XX_SDCE0_PHYS_OFFSET
+ default 0xd0008000 if ARCH_EP93XX && EP93XX_SDCE1_PHYS_OFFSET
+ default 0xe0008000 if ARCH_EP93XX && EP93XX_SDCE2_PHYS_OFFSET
+ default 0xf0008000 if ARCH_EP93XX && EP93XX_SDCE3_ASYNC_PHYS_OFFSET
+ default 0x00008000 if ARCH_GEMINI && GEMINI_MEM_SWAP
+ default 0x10008000 if ARCH_GEMINI && !GEMINI_MEM_SWAP
+ default 0x70008000 if ARCH_REALVIEW && REALVIEW_HIGH_PHYS_OFFSET
+ default 0x00008000 if ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET
+ default 0xc0208000 if ARCH_SA1100 && SA1111
+ default 0xc0008000 if ARCH_SA1100 && !SA1111
+ default 0x30108000 if ARCH_S3C2410 && PM_H1940
+ default 0x28E08000 if ARCH_U300 && MACH_U300_SINGLE_RAM
+ default 0x48008000 if ARCH_U300 && !MACH_U300_SINGLE_RAM
+ help
+ ZRELADDR is the physical address where the decompressed kernel
+ image will be placed. ZRELADDR has to be specified when the
+ assumption of AUTO_ZRELADDR is not valid, or when ZBOOT_ROM is
+ selected.
+
endmenu
menu "CPU Power Management"
diff --git a/arch/arm/boot/Makefile b/arch/arm/boot/Makefile
index 4a590f4113e..f705213caa8 100644
--- a/arch/arm/boot/Makefile
+++ b/arch/arm/boot/Makefile
@@ -14,18 +14,16 @@
MKIMAGE := $(srctree)/scripts/mkuboot.sh
ifneq ($(MACHINE),)
-include $(srctree)/$(MACHINE)/Makefile.boot
+-include $(srctree)/$(MACHINE)/Makefile.boot
endif
# Note: the following conditions must always be true:
-# ZRELADDR == virt_to_phys(PAGE_OFFSET + TEXT_OFFSET)
# PARAMS_PHYS must be within 4MB of ZRELADDR
# INITRD_PHYS must be in RAM
-ZRELADDR := $(zreladdr-y)
PARAMS_PHYS := $(params_phys-y)
INITRD_PHYS := $(initrd_phys-y)
-export ZRELADDR INITRD_PHYS PARAMS_PHYS
+export INITRD_PHYS PARAMS_PHYS
targets := Image zImage xipImage bootpImage uImage
@@ -67,7 +65,7 @@ quiet_cmd_uimage = UIMAGE $@
ifeq ($(CONFIG_ZBOOT_ROM),y)
$(obj)/uImage: LOADADDR=$(CONFIG_ZBOOT_ROM_TEXT)
else
-$(obj)/uImage: LOADADDR=$(ZRELADDR)
+$(obj)/uImage: LOADADDR=$(CONFIG_ZRELADDR)
endif
ifeq ($(CONFIG_THUMB2_KERNEL),y)
diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index 2a80c9de6ea..cc8380b879f 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -4,6 +4,7 @@
# create a compressed vmlinuz image from the original vmlinux
#
+AFLAGS_head.o += -DTEXT_OFFSET=$(TEXT_OFFSET)
HEAD = head.o
OBJS = misc.o decompress.o
FONTC = $(srctree)/drivers/video/console/font_acorn_8x8.c
@@ -79,8 +80,6 @@ endif
EXTRA_CFLAGS := -fpic -fno-builtin
EXTRA_AFLAGS := -Wa,-march=all
-# Supply ZRELADDR to the decompressor via a linker symbol.
-LDFLAGS_vmlinux := --defsym zreladdr=$(ZRELADDR)
ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
LDFLAGS_vmlinux += --be8
endif
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index d27faa13179..abf4d65acf6 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -170,9 +170,16 @@ not_angel:
.text
adr r0, LC0
- ARM( ldmia r0, {r1, r2, r3, r4, r5, r6, r11, ip, sp})
- THUMB( ldmia r0, {r1, r2, r3, r4, r5, r6, r11, ip} )
+ ARM( ldmia r0, {r1, r2, r3, r5, r6, r11, ip, sp})
+ THUMB( ldmia r0, {r1, r2, r3, r5, r6, r11, ip} )
THUMB( ldr sp, [r0, #32] )
+#ifdef CONFIG_AUTO_ZRELADDR
+ @ determine final kernel image address
+ and r4, pc, #0xf8000000
+ add r4, r4, #TEXT_OFFSET
+#else
+ ldr r4, =CONFIG_ZRELADDR
+#endif
subs r0, r0, r1 @ calculate the delta offset
@ if delta is zero, we are
@@ -310,7 +317,6 @@ wont_overwrite: mov r0, r4
LC0: .word LC0 @ r1
.word __bss_start @ r2
.word _end @ r3
- .word zreladdr @ r4
.word _start @ r5
.word _image_size @ r6
.word _got_start @ r11