[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>
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index e6344ec..39fca4e 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -839,6 +839,20 @@
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