[PATCH 3.10 003/173] ARM: sa11x0/assabet: ensure CS2 is configured appropriately

Greg Kroah-Hartman
2013-12-02T21:22:49Z

From: Russell King <rmk+kernel@arm.linux.org.uk>

commit f3964fe1c9d9a887d65faf594669852e4dec46e0 upstream.

The CS2 region contains the Assabet board configuration and status
registers, which are 32-bit. Unfortunately, some boot loaders do not
configure this region correctly, leaving it setup as a 16-bit region.
Fix this.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
arch/arm/mach-sa1100/assabet.c | 3 +++
1 file changed, 3 insertions(+)

--- a/arch/arm/mach-sa1100/assabet.c
+++ b/arch/arm/mach-sa1100/assabet.c
@@ -512,6 +512,9 @@ static void __init assabet_map_io(void)
* Its called GPCLKR0 in my SA1110 manual.
*/
Ser1SDCR0 |= SDCR0_SUS;
+ MSC1 = (MSC1 & ~0xffff) |
+ MSC_NonBrst | MSC_32BitStMem |
+ MSC_RdAcc(2) | MSC_WrAcc(2) | MSC_Rec(0);

if (!machine_has_neponset())
sa1100_register_uart_fns(&assabet_port_fns);