From ab5fdfd5ea621b629da9bfda987af301da973525 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Mon, 8 Apr 2013 10:23:28 +0900 Subject: ARM: shmobile: force enable of r8a7790 arch timer Implement a SoC-specific timer init function for r8a7790 that makes sure the architected timer is started regardless of boot loader setting. Signed-off-by: Magnus Damm Tested-by: Kuninori Morimoto --- arch/arm/mach-shmobile/setup-r8a7790.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'arch/arm/mach-shmobile/setup-r8a7790.c') diff --git a/arch/arm/mach-shmobile/setup-r8a7790.c b/arch/arm/mach-shmobile/setup-r8a7790.c index cfccf6c1001b..49de2d56f86d 100644 --- a/arch/arm/mach-shmobile/setup-r8a7790.c +++ b/arch/arm/mach-shmobile/setup-r8a7790.c @@ -118,6 +118,18 @@ void __init r8a7790_add_standard_devices(void) r8a7790_register_irqc(0); } +void __init r8a7790_timer_init(void) +{ + void __iomem *cntcr; + + /* make sure arch timer is started by setting bit 0 of CNTCT */ + cntcr = ioremap(0xe6080000, PAGE_SIZE); + iowrite32(1, cntcr); + iounmap(cntcr); + + shmobile_timer_init(); +} + #ifdef CONFIG_USE_OF void __init r8a7790_add_standard_devices_dt(void) { @@ -132,7 +144,7 @@ static const char *r8a7790_boards_compat_dt[] __initdata = { DT_MACHINE_START(R8A7790_DT, "Generic R8A7790 (Flattened Device Tree)") .init_irq = irqchip_init, .init_machine = r8a7790_add_standard_devices_dt, - .init_time = shmobile_timer_init, + .init_time = r8a7790_timer_init, .dt_compat = r8a7790_boards_compat_dt, MACHINE_END #endif /* CONFIG_USE_OF */ -- cgit v1.2.3