openwrtv4/target/linux/ramips/patches-4.3/0902-mt7621-use-gic-timer.patch
John Crispin e610cdfc8a ramips: use gic timer as clocksource for mt7621
* Switches clocksource to gic timer.
* Moves frequency definitions to dtsi since frequency was hardcoded anyway
  Will work on proper frequency detection later.

Signed-off-by: Nikolay Martynov <mar.kolya@gmail.com>

SVN-Revision: 47875
2015-12-12 06:42:05 +00:00

82 lines
1.8 KiB
Diff

--- a/arch/mips/ralink/Kconfig
+++ b/arch/mips/ralink/Kconfig
@@ -52,6 +52,8 @@
select SYS_SUPPORTS_SMP
select SYS_SUPPORTS_MIPS_CPS
select MIPS_GIC
+ select COMMON_CLK
+ select CLKSRC_MIPS_GIC
select HW_HAS_PCI
endchoice
--- a/arch/mips/ralink/Makefile
+++ b/arch/mips/ralink/Makefile
@@ -6,14 +6,18 @@
# Copyright (C) 2009-2011 Gabor Juhos <juhosg@openwrt.org>
# Copyright (C) 2013 John Crispin <blogic@openwrt.org>
-obj-y := prom.o of.o reset.o clk.o timer.o
+obj-y := prom.o of.o reset.o
+
+ifndef CONFIG_MIPS_GIC
+ obj-y += clk.o timer.o
+endif
obj-$(CONFIG_CLKEVT_RT3352) += cevt-rt3352.o
obj-$(CONFIG_RALINK_ILL_ACC) += ill_acc.o
obj-$(CONFIG_IRQ_INTC) += irq.o
-obj-$(CONFIG_MIPS_GIC) += irq-gic.o
+obj-$(CONFIG_MIPS_GIC) += irq-gic.o timer-gic.o
obj-$(CONFIG_SOC_RT288X) += rt288x.o
obj-$(CONFIG_SOC_RT305X) += rt305x.o
--- a/arch/mips/ralink/irq-gic.c
+++ b/arch/mips/ralink/irq-gic.c
@@ -3,13 +3,6 @@
#include <linux/of.h>
#include <linux/irqchip.h>
-#include <linux/irqchip/mips-gic.h>
-
-unsigned int get_c0_compare_int(void)
-{
- return gic_get_c0_compare_int();
-}
-
void __init
arch_init_irq(void)
{
--- /dev/null
+++ b/arch/mips/ralink/timer-gic.c
@@ -0,0 +1,15 @@
+#include <linux/init.h>
+
+#include <linux/of.h>
+#include <linux/clk-provider.h>
+#include <linux/clocksource.h>
+
+#include "common.h"
+
+void __init plat_time_init(void)
+{
+ ralink_of_remap();
+
+ of_clk_init(NULL);
+ clocksource_of_init();
+}
--- a/arch/mips/ralink/mt7621.c
+++ b/arch/mips/ralink/mt7621.c
@@ -152,11 +152,6 @@
}
break;
}
- cpu_clk = 880000000;
- ralink_clk_add("cpu", cpu_clk);
- ralink_clk_add("1e000b00.spi", 50000000);
- ralink_clk_add("1e000c00.uartlite", 50000000);
- ralink_clk_add("1e000d00.uart", 50000000);
}
void __init ralink_of_remap(void)