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authorArnd Bergmann <arnd@arndb.de>2013-03-28 12:25:51 +0100
committerArnd Bergmann <arnd@arndb.de>2013-03-28 12:25:51 +0100
commit063ab6daeb2ba5ef8f47c3fc04a749936c62d5bb (patch)
tree43532e85397b7105999851a2875db9bbf043080e /drivers/clocksource/tegra20_timer.c
parentcde35bd027023b052316c14ae3fc01e2f487a6ab (diff)
parentdbaf6a8d5de7b63f85eea10a47681f920cbf7385 (diff)
Merge branch 'prima2/multiplatform' into next/multiplatform
This series enables multiplatform support on the SIRF prima2/marco/atlas6 platform. The code was already quite tidy, so this is a relatively simple change, and it follows similar changes we made to other ARMv7 based platforms recently. * prima2/multiplatform: ARM: sirf: enable support in multi_v7_defconfig ARM: sirf: enable multiplatform support ARM: sirf: use clocksource_of infrastructure ARM: sirf: move debug-macro.S to include/debug/sirf.S ARM: sirf: enable sparse IRQ ARM: sirf: move irq driver to drivers/irqchip ARM: sirf: fix prima2 interrupt lookup pinctrl: sirf: convert to linear irq domain clocksource: make CLOCKSOURCE_OF_DECLARE type safe ARM/dts: prima2: add .dtsi for atlas6 and .dts for atla6-evb board arm: prima2: add new SiRFatlas6 machine in common board ARM: smp_twd: convert to use CLKSRC_OF init clocksource: tegra20: use the device_node pointer passed to init clocksource: pass DT node pointer to init functions clocksource: add empty version of clocksource_of_init Conflicts: arch/arm/configs/multi_v7_defconfig arch/arm/mach-spear/spear13xx.c Tested-by: Barry Song <Barry.Song@csr.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/clocksource/tegra20_timer.c')
-rw-r--r--drivers/clocksource/tegra20_timer.c73
1 files changed, 27 insertions, 46 deletions
diff --git a/drivers/clocksource/tegra20_timer.c b/drivers/clocksource/tegra20_timer.c
index 0bde03feb09..2e4d8a666c3 100644
--- a/drivers/clocksource/tegra20_timer.c
+++ b/drivers/clocksource/tegra20_timer.c
@@ -154,29 +154,12 @@ static struct irqaction tegra_timer_irq = {
.dev_id = &tegra_clockevent,
};
-static const struct of_device_id timer_match[] __initconst = {
- { .compatible = "nvidia,tegra20-timer" },
- {}
-};
-
-static const struct of_device_id rtc_match[] __initconst = {
- { .compatible = "nvidia,tegra20-rtc" },
- {}
-};
-
-static void __init tegra20_init_timer(void)
+static void __init tegra20_init_timer(struct device_node *np)
{
- struct device_node *np;
struct clk *clk;
unsigned long rate;
int ret;
- np = of_find_matching_node(NULL, timer_match);
- if (!np) {
- pr_err("Failed to find timer DT node\n");
- BUG();
- }
-
timer_reg_base = of_iomap(np, 0);
if (!timer_reg_base) {
pr_err("Can't map timer registers\n");
@@ -200,30 +183,6 @@ static void __init tegra20_init_timer(void)
of_node_put(np);
- np = of_find_matching_node(NULL, rtc_match);
- if (!np) {
- pr_err("Failed to find RTC DT node\n");
- BUG();
- }
-
- rtc_base = of_iomap(np, 0);
- if (!rtc_base) {
- pr_err("Can't map RTC registers");
- BUG();
- }
-
- /*
- * rtc registers are used by read_persistent_clock, keep the rtc clock
- * enabled
- */
- clk = clk_get_sys("rtc-tegra", NULL);
- if (IS_ERR(clk))
- pr_warn("Unable to get rtc-tegra clock\n");
- else
- clk_prepare_enable(clk);
-
- of_node_put(np);
-
switch (rate) {
case 12000000:
timer_writel(0x000b, TIMERUS_USEC_CFG);
@@ -259,12 +218,34 @@ static void __init tegra20_init_timer(void)
tegra_clockevent.irq = tegra_timer_irq.irq;
clockevents_config_and_register(&tegra_clockevent, 1000000,
0x1, 0x1fffffff);
-#ifdef CONFIG_HAVE_ARM_TWD
- twd_local_timer_of_register();
-#endif
+}
+CLOCKSOURCE_OF_DECLARE(tegra20_timer, "nvidia,tegra20-timer", tegra20_init_timer);
+
+static void __init tegra20_init_rtc(struct device_node *np)
+{
+ struct clk *clk;
+
+ rtc_base = of_iomap(np, 0);
+ if (!rtc_base) {
+ pr_err("Can't map RTC registers");
+ BUG();
+ }
+
+ /*
+ * rtc registers are used by read_persistent_clock, keep the rtc clock
+ * enabled
+ */
+ clk = clk_get_sys("rtc-tegra", NULL);
+ if (IS_ERR(clk))
+ pr_warn("Unable to get rtc-tegra clock\n");
+ else
+ clk_prepare_enable(clk);
+
+ of_node_put(np);
+
register_persistent_clock(NULL, tegra_read_persistent_clock);
}
-CLOCKSOURCE_OF_DECLARE(tegra20, "nvidia,tegra20-timer", tegra20_init_timer);
+CLOCKSOURCE_OF_DECLARE(tegra20_rtc, "nvidia,tegra20-rtc", tegra20_init_rtc);
#ifdef CONFIG_PM
static u32 usec_config;