arm: koelsch: Disable TMU0 before OS boot

On U-boot uses TMU0 as timer, but TMU0 does not use on linux kernel
and other.
This disables TMU0 at the request of from kernel user.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

diff --git a/board/renesas/koelsch/koelsch.c b/board/renesas/koelsch/koelsch.c
index 89f5c91c636bf7174b7533ebc79698def41e8003..32d3b584bce1059f1eb8808da37f845937fbf364 100644 (file)
--- a/board/renesas/koelsch/koelsch.c
+++ b/board/renesas/koelsch/koelsch.c
@@ -253,6 +253,12 @@ int board_early_init_f(void)
        return 0;
 }
 
+void arch_preboot_os(void)
+{
+       /* Disable TMU0 */
+       mstp_setbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125);
+}
+
 /* LSI pin pull-up control */
 #define PUPR5 0xe6060114
 #define PUPR5_ETH 0x3FFC0000