summaryrefslogtreecommitdiff
path: root/arch/arm/mach-shmobile/timer.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2014-08-08 22:14:29 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-08 22:14:29 +0400
commitb3345d7c57d70e6cb6749af25cdbe80515582e99 (patch)
tree04cce706bc7e944ad1fb257108a8ae735948f97f /arch/arm/mach-shmobile/timer.c
parent44c916d58b9ef1f2c4aec2def57fa8289c716a60 (diff)
parentc2fff85e21818952aa0ee5778926beee6c03e579 (diff)
downloadlinux-b3345d7c57d70e6cb6749af25cdbe80515582e99.tar.xz
Merge tag 'soc-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform changes from Olof Johansson: "This is the bulk of new SoC enablement and other platform changes for 3.17: - Samsung S5PV210 has been converted to DT and multiplatform - Clock drivers and bindings for some of the lower-end i.MX 1/2 platforms - Kirkwood, one of the popular Marvell platforms, is folded into the mvebu platform code, removing mach-kirkwood - Hwmod data for TI AM43xx and DRA7 platforms - More additions of Renesas shmobile platform support - Removal of plat-samsung contents that can be removed with S5PV210 being multiplatform/DT-enabled and the other two old platforms being removed New platforms (most with only basic support right now): - Hisilicon X5HD2 settop box chipset is introduced - Mediatek MT6589 (mobile chipset) is introduced - Broadcom BCM7xxx settop box chipset is introduced + as usual a lot other pieces all over the platform code" * tag 'soc-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (240 commits) ARM: hisi: remove smp from machine descriptor power: reset: move hisilicon reboot code ARM: dts: Add hix5hd2-dkb dts file. ARM: debug: Rename Hi3716 to HIX5HD2 ARM: hisi: enable hix5hd2 SoC ARM: hisi: add ARCH_HISI MAINTAINERS: add entry for Broadcom ARM STB architecture ARM: brcmstb: select GISB arbiter and interrupt drivers ARM: brcmstb: add infrastructure for ARM-based Broadcom STB SoCs ARM: configs: enable SMP in bcm_defconfig ARM: add SMP support for Broadcom mobile SoCs Documentation: arm: misc updates to Marvell EBU SoC status Documentation: arm: add URLs to public datasheets for the Marvell Armada XP SoC ARM: mvebu: fix build without platforms selected ARM: mvebu: add cpuidle support for Armada 38x ARM: mvebu: add cpuidle support for Armada 370 cpuidle: mvebu: add Armada 38x support cpuidle: mvebu: add Armada 370 support cpuidle: mvebu: rename the driver from armada-370-xp to mvebu-v7 ARM: mvebu: export the SCU address ...
Diffstat (limited to 'arch/arm/mach-shmobile/timer.c')
-rw-r--r--arch/arm/mach-shmobile/timer.c50
1 files changed, 29 insertions, 21 deletions
diff --git a/arch/arm/mach-shmobile/timer.c b/arch/arm/mach-shmobile/timer.c
index 68bc0b82226d..942efdc82a62 100644
--- a/arch/arm/mach-shmobile/timer.c
+++ b/arch/arm/mach-shmobile/timer.c
@@ -59,29 +59,37 @@ void __init shmobile_setup_delay(unsigned int max_cpu_core_mhz,
void __init shmobile_init_delay(void)
{
- struct device_node *np, *parent;
- u32 max_freq, freq;
-
- max_freq = 0;
-
- parent = of_find_node_by_path("/cpus");
- if (parent) {
- for_each_child_of_node(parent, np) {
- if (!of_property_read_u32(np, "clock-frequency", &freq))
- max_freq = max(max_freq, freq);
- }
- of_node_put(parent);
- }
+ struct device_node *np, *cpus;
+ bool is_a8_a9 = false;
+ bool is_a15 = false;
+ u32 max_freq = 0;
+
+ cpus = of_find_node_by_path("/cpus");
+ if (!cpus)
+ return;
+
+ for_each_child_of_node(cpus, np) {
+ u32 freq;
+
+ if (!of_property_read_u32(np, "clock-frequency", &freq))
+ max_freq = max(max_freq, freq);
- if (max_freq) {
- if (of_find_compatible_node(NULL, NULL, "arm,cortex-a8"))
- shmobile_setup_delay_hz(max_freq, 1, 3);
- else if (of_find_compatible_node(NULL, NULL, "arm,cortex-a9"))
- shmobile_setup_delay_hz(max_freq, 1, 3);
- else if (of_find_compatible_node(NULL, NULL, "arm,cortex-a15"))
- if (!IS_ENABLED(CONFIG_ARM_ARCH_TIMER))
- shmobile_setup_delay_hz(max_freq, 2, 4);
+ if (of_device_is_compatible(np, "arm,cortex-a8") ||
+ of_device_is_compatible(np, "arm,cortex-a9"))
+ is_a8_a9 = true;
+ else if (of_device_is_compatible(np, "arm,cortex-a15"))
+ is_a15 = true;
}
+
+ of_node_put(cpus);
+
+ if (!max_freq)
+ return;
+
+ if (is_a8_a9)
+ shmobile_setup_delay_hz(max_freq, 1, 3);
+ else if (is_a15 && !IS_ENABLED(CONFIG_ARM_ARCH_TIMER))
+ shmobile_setup_delay_hz(max_freq, 2, 4);
}
static void __init shmobile_late_time_init(void)