OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ARM: 8113/1: remove remaining definitions of PLAT_PHYS_OFFSET from <mach/memory.h> 

The platforms selecting NEED_MACH_MEMORY_H defined the start address of
their physical memory in the respective <mach/memory.h>. With
ARM_PATCH_PHYS_VIRT=y (which is quite common today) this is useless
though because the definition isn't used but determined dynamically.

So remove the definitions from all <mach/memory.h> and provide the
Kconfig symbol PHYS_OFFSET with the respective defaults in case
ARM_PATCH_PHYS_VIRT isn't enabled.

This allows to drop the dependency of PHYS_OFFSET on !NEED_MACH_MEMORY_H
which prevents compiling an integrator nommu-kernel.
(CONFIG_PAGE_OFFSET which has "default PHYS_OFFSET if !MMU" expanded to
"0x" because CONFIG_PHYS_OFFSET doesn't exist as INTEGRATOR selects
NEED_MACH_MEMORY_H.)

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Uwe Kleine-König 2014-07-23 20:37:43 +01:00 committed by Russell King
parent 04fcab32d3
commit c6f54a9b39
13 changed files with 17 additions and 79 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
arch/arm/Kconfig
View File

@ -262,8 +262,22 @@ config NEED_MACH_MEMORY_H
config PHYS_OFFSET
hex "Physical address of main memory" if MMU
depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
depends on !ARM_PATCH_PHYS_VIRT
default DRAM_BASE if !MMU
default 0x00000000 if ARCH_EBSA110 || \
EP93XX_SDCE3_SYNC_PHYS_OFFSET || \
ARCH_FOOTBRIDGE || \
ARCH_INTEGRATOR || \
ARCH_IOP13XX || \
ARCH_KS8695 || \
(ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET)
default 0x10000000 if ARCH_OMAP1 || ARCH_RPC
default 0x20000000 if ARCH_S5PV210
default 0x70000000 if REALVIEW_HIGH_PHYS_OFFSET
default 0xc0000000 if EP93XX_SDCE0_PHYS_OFFSET || ARCH_SA1100
default 0xd0000000 if EP93XX_SDCE1_PHYS_OFFSET
default 0xe0000000 if EP93XX_SDCE2_PHYS_OFFSET
default 0xf0000000 if EP93XX_SDCE3_ASYNC_PHYS_OFFSET
help
Please provide the physical address corresponding to the
location of main memory in your system.
@ -435,7 +449,6 @@ config ARCH_EP93XX
select ARM_VIC
select CLKDEV_LOOKUP
select CPU_ARM920T
select NEED_MACH_MEMORY_H
help
This enables support for the Cirrus EP93xx series of CPUs.

6
arch/arm/include/asm/memory.h
View File

@ -150,13 +150,11 @@
/*
* PLAT_PHYS_OFFSET is the offset (from zero) of the start of physical
* memory. This is used for XIP and NoMMU kernels, or by kernels which
* have their own mach/memory.h. Assembly code must always use
* memory. This is used for XIP and NoMMU kernels, and on platforms that don't
* have CONFIG_ARM_PATCH_PHYS_VIRT. Assembly code must always use
* PLAT_PHYS_OFFSET and not PHYS_OFFSET.
*/
#ifndef PLAT_PHYS_OFFSET
#define PLAT_PHYS_OFFSET UL(CONFIG_PHYS_OFFSET)
#endif
#ifndef __ASSEMBLY__

5
arch/arm/mach-ebsa110/include/mach/memory.h
View File

@ -16,11 +16,6 @@
#ifndef __ASM_ARCH_MEMORY_H
#define __ASM_ARCH_MEMORY_H
/*
* Physical DRAM offset.
*/
#define PLAT_PHYS_OFFSET UL(0x00000000)
/*
* Cache flushing area - SRAM
*/

22
arch/arm/mach-ep93xx/include/mach/memory.h
View File

@ -1,22 +0,0 @@
/*
* arch/arm/mach-ep93xx/include/mach/memory.h
*/
#ifndef __ASM_ARCH_MEMORY_H
#define __ASM_ARCH_MEMORY_H
#if defined(CONFIG_EP93XX_SDCE3_SYNC_PHYS_OFFSET)
#define PLAT_PHYS_OFFSET UL(0x00000000)
#elif defined(CONFIG_EP93XX_SDCE0_PHYS_OFFSET)
#define PLAT_PHYS_OFFSET UL(0xc0000000)
#elif defined(CONFIG_EP93XX_SDCE1_PHYS_OFFSET)
#define PLAT_PHYS_OFFSET UL(0xd0000000)
#elif defined(CONFIG_EP93XX_SDCE2_PHYS_OFFSET)
#define PLAT_PHYS_OFFSET UL(0xe0000000)
#elif defined(CONFIG_EP93XX_SDCE3_ASYNC_PHYS_OFFSET)
#define PLAT_PHYS_OFFSET UL(0xf0000000)
#else
#error "Kconfig bug: No EP93xx PHYS_OFFSET set"
#endif
#endif

5
arch/arm/mach-footbridge/include/mach/memory.h
View File

@ -59,11 +59,6 @@ extern unsigned long __bus_to_pfn(unsigned long);
*/
#define FLUSH_BASE 0xf9000000
/*
* Physical DRAM offset.
*/
#define PLAT_PHYS_OFFSET UL(0x00000000)
#define FLUSH_BASE_PHYS 0x50000000
#endif

5
arch/arm/mach-integrator/include/mach/memory.h
View File

@ -20,11 +20,6 @@
#ifndef __ASM_ARCH_MEMORY_H
#define __ASM_ARCH_MEMORY_H
/*
* Physical DRAM offset.
*/
#define PLAT_PHYS_OFFSET UL(0x00000000)
#define BUS_OFFSET UL(0x80000000)
#define __virt_to_bus(x) ((x) - PAGE_OFFSET + BUS_OFFSET)
#define __bus_to_virt(x) ((x) - BUS_OFFSET + PAGE_OFFSET)

5
arch/arm/mach-iop13xx/include/mach/memory.h
View File

@ -3,11 +3,6 @@
#include <mach/hardware.h>
/*
* Physical DRAM offset.
*/
#define PLAT_PHYS_OFFSET UL(0x00000000)
#ifndef __ASSEMBLY__
#if defined(CONFIG_ARCH_IOP13XX)

5
arch/arm/mach-ks8695/include/mach/memory.h
View File

@ -15,11 +15,6 @@
#include <mach/hardware.h>
/*
* Physical SRAM offset.
*/
#define PLAT_PHYS_OFFSET KS8695_SDRAM_PA
#ifndef __ASSEMBLY__
#ifdef CONFIG_PCI

5
arch/arm/mach-omap1/include/mach/memory.h
View File

@ -5,11 +5,6 @@
#ifndef __ASM_ARCH_MEMORY_H
#define __ASM_ARCH_MEMORY_H
/*
* Physical DRAM offset.
*/
#define PLAT_PHYS_OFFSET UL(0x10000000)
/*
* Bus address is physical address, except for OMAP-1510 Local Bus.
* OMAP-1510 bus address is translated into a Local Bus address if the

9
arch/arm/mach-realview/include/mach/memory.h
View File

@ -20,15 +20,6 @@
#ifndef __ASM_ARCH_MEMORY_H
#define __ASM_ARCH_MEMORY_H
/*
* Physical DRAM offset.
*/
#ifdef CONFIG_REALVIEW_HIGH_PHYS_OFFSET
#define PLAT_PHYS_OFFSET UL(0x70000000)
#else
#define PLAT_PHYS_OFFSET UL(0x00000000)
#endif
#ifdef CONFIG_SPARSEMEM
/*

5
arch/arm/mach-rpc/include/mach/memory.h
View File

@ -18,11 +18,6 @@
#ifndef __ASM_ARCH_MEMORY_H
#define __ASM_ARCH_MEMORY_H
/*
* Physical DRAM offset.
*/
#define PLAT_PHYS_OFFSET UL(0x10000000)
/*
* Cache flushing area - ROM
*/

2
arch/arm/mach-s5pv210/include/mach/memory.h
View File

@ -13,8 +13,6 @@
#ifndef __ASM_ARCH_MEMORY_H
#define __ASM_ARCH_MEMORY_H
#define PLAT_PHYS_OFFSET UL(0x20000000)
/*
* Sparsemem support
* Physical memory can be located from 0x20000000 to 0x7fffffff,

5
arch/arm/mach-sa1100/include/mach/memory.h
View File

@ -9,11 +9,6 @@
#include <asm/sizes.h>
/*
* Physical DRAM offset is 0xc0000000 on the SA1100
*/
#define PLAT_PHYS_OFFSET UL(0xc0000000)
/*
* Because of the wide memory address space between physical RAM banks on the
* SA1100, it's much convenient to use Linux's SparseMEM support to implement