From: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Date: Fri, 11 Oct 2013 05:49:04 +0000 (+0900)
Subject: arm: koelsch: Disable TMU0 before OS boot
X-Git-Tag: v2014.01~21^2~5
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=9f861f0ae23674c3cda4815541f3756e8a5fc8c8;p=oweals%2Fu-boot.git

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 89f5c91c63..32d3b584bc 100644
--- 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