diff options
| author | Linus Walleij <linus.walleij@stericsson.com> | 2009-04-27 10:21:46 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-04-28 22:44:29 +0100 |
| commit | d98aac7592114241f378bc8d5b3e424cced7ded2 (patch) | |
| tree | 2d052df037411e94478d5ee4ff43402a45fd8fe4 /arch/arm/mm | |
| parent | bb3cee2b35d2b9edab71997bd06040ff37483e08 (diff) | |
[ARM] 5480/1: U300-v5 integrate into the ARM architecture
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>
Diffstat (limited to 'arch/arm/mm')
| -rw-r--r-- | arch/arm/mm/mmu.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index e6344ece00ce..39fca4e416e2 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -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 |