From abd11be13cd9bc8f3cbb5cfa6b458eb3f420d6c0 Mon Sep 17 00:00:00 2001
From: John Crispin <john@openwrt.org>
Date: Fri, 11 Dec 2015 15:03:39 +0000
Subject: 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: 47843
---
 .../patches-4.3/0902-mt7621-use-gic-timer.patch    | 83 ++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 target/linux/ramips/patches-4.3/0902-mt7621-use-gic-timer.patch

(limited to 'target/linux/ramips/patches-4.3/0902-mt7621-use-gic-timer.patch')

diff --git a/target/linux/ramips/patches-4.3/0902-mt7621-use-gic-timer.patch b/target/linux/ramips/patches-4.3/0902-mt7621-use-gic-timer.patch
new file mode 100644
index 0000000000..5a78b88bdd
--- /dev/null
+++ b/target/linux/ramips/patches-4.3/0902-mt7621-use-gic-timer.patch
@@ -0,0 +1,83 @@
+--- a/arch/mips/ralink/Kconfig
++++ b/arch/mips/ralink/Kconfig
+@@ -52,6 +52,8 @@ choice
+ 		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 +1,13 @@
++#include <linux/init.h>
++
++#include <linux/of.h>
++#include <linux/clocksource.h>
++
++#include "common.h"
++
++void __init plat_time_init(void)
++{
++	ralink_of_remap();
++
++	clocksource_of_init();
++}
+--- a/arch/mips/ralink/mt7621.c
++++ b/arch/mips/ralink/mt7621.c
+@@ -152,11 +152,14 @@ void __init ralink_clk_init(void)
+ 		}
+ 		break;
+ 	}
++	/*
++	  FIXME: detect frequency automatically
+ 	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)
-- 
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