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[ARM] 5480/1: U300-v5 integrate into the ARM architecture

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This hooks the U300 support into Kbuild and makes a small hook
in mmu.c for supporting an odd memory alignment with shared memory
on these systems.

This is rebased to RMK:s GIT HEAD. This patch tries to add the
Kconfig option in alphabetic order by option text and the Makefile
entry after config symbol.

Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Linus Walleij 2009-04-27 10:21:46 +01:00 committed by Russell King
parent bb3cee2b35
commit d98aac7592
3 changed files with 31 additions and 0 deletions
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16
arch/arm/Kconfig
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@ -594,6 +594,20 @@ config ARCH_LH7A40X
core with a wide array of integrated devices for
hand-held and low-power applications.
config ARCH_U300
bool "ST-Ericsson U300 Series"
depends on MMU
select CPU_ARM926T
select ARM_AMBA
select ARM_VIC
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
select HAVE_CLK
select COMMON_CLKDEV
select GENERIC_GPIO
help
Support for ST-Ericsson U300 series mobile platforms.
config ARCH_DAVINCI
bool "TI DaVinci"
select CPU_ARM926T
@ -705,6 +719,8 @@ source "arch/arm/mach-ks8695/Kconfig"
source "arch/arm/mach-msm/Kconfig"
source "arch/arm/mach-u300/Kconfig"
source "arch/arm/mach-w90x900/Kconfig"
# Definitions to make life easier

1
arch/arm/Makefile
View File

@ -149,6 +149,7 @@ machine-$(CONFIG_ARCH_S3C24A0) := s3c24a0
machine-$(CONFIG_ARCH_S3C64XX) := s3c6400 s3c6410
machine-$(CONFIG_ARCH_SA1100) := sa1100
machine-$(CONFIG_ARCH_SHARK) := shark
machine-$(CONFIG_ARCH_U300) := u300
machine-$(CONFIG_ARCH_VERSATILE) := versatile
machine-$(CONFIG_ARCH_W90X900) := w90x900
machine-$(CONFIG_FOOTBRIDGE) := footbridge

14
arch/arm/mm/mmu.c
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@ -839,6 +839,20 @@ void __init reserve_node_zero(pg_data_t *pgdat)
reserve_bootmem_node(pgdat, 0xa0200000, 0x1000,
BOOTMEM_EXCLUSIVE);
/*
* U300 - This platform family can share physical memory
* between two ARM cpus, one running Linux and the other
* running another OS.
*/
if (machine_is_u300()) {
#ifdef CONFIG_MACH_U300_SINGLE_RAM
#if ((CONFIG_MACH_U300_ACCESS_MEM_SIZE & 1) == 1) && \
CONFIG_MACH_U300_2MB_ALIGNMENT_FIX
res_size = 0x00100000;
#endif
#endif
}
#ifdef CONFIG_SA1111
/*
* Because of the SA1111 DMA bug, we want to preserve our