diff mbox series

[v2,4/4] ARM: realtek: Enable RTD1195 arch timer

Message ID 20191031165308.14102-5-afaerber@suse.de
State Superseded
Headers show
Series None | expand

Commit Message

Andreas Färber Oct. 31, 2019, 4:53 p.m. UTC 
Without this magic write the timer doesn't work and boot gets stuck.

Signed-off-by: Andreas Färber <afaerber@suse.de>

---
 v2: New
 
 arch/arm/mach-realtek/rtd1195.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

-- 
2.16.4
diff mbox series

Patch

diff --git a/arch/arm/mach-realtek/rtd1195.c b/arch/arm/mach-realtek/rtd1195.c
index 99e5d3e96a8e..cd16f1e99646 100644
--- a/arch/arm/mach-realtek/rtd1195.c
+++ b/arch/arm/mach-realtek/rtd1195.c
@@ -5,6 +5,9 @@ 
  * Copyright (c) 2017-2019 Andreas Färber
  */
 
+#include <linux/clk-provider.h>
+#include <linux/clocksource.h>
+#include <linux/io.h>
 #include <linux/memblock.h>
 #include <asm/mach/arch.h>
 
@@ -24,6 +27,18 @@  static void __init rtd1195_reserve(void)
 	rtd1195_memblock_remove(0x18100000, 0x01000000);
 }
 
+static void __init rtd1195_init_time(void)
+{
+	void __iomem *base;
+
+	base = ioremap(0xff018000, 4);
+	writel(0x1, base);
+	iounmap(base);
+
+	of_clk_init(NULL);
+	timer_probe();
+}
+
 static const char *const rtd1195_dt_compat[] __initconst = {
 	"realtek,rtd1195",
 	NULL
@@ -31,6 +46,7 @@  static const char *const rtd1195_dt_compat[] __initconst = {
 
 DT_MACHINE_START(rtd1195, "Realtek RTD1195")
 	.dt_compat = rtd1195_dt_compat,
+	.init_time = rtd1195_init_time,
 	.reserve = rtd1195_reserve,
 	.l2c_aux_val = 0x0,
 	.l2c_aux_mask = ~0x0,