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authorArnd Bergmann <arnd@arndb.de>2012-05-14 15:24:45 +0200
committerArnd Bergmann <arnd@arndb.de>2012-05-14 15:28:19 +0200
commit304ea74770c892cf115e128b0e0dc6636148b010 (patch)
treeccf06fa8a8fa9321beaab730ac19160966033d52 /arch/arm/plat-mxc
parente29402edf848359d619ce06af86d61e62c292c87 (diff)
parent6b204283f2802a92cf91fc14c2c1b04e7295761b (diff)
Merge branch 'imx/dt/for-3.5' of git://git.linaro.org/people/shawnguo/linux-2.6.git into next/dt2
Shawn Guo <shawn.guo@linaro.org> writes: I chose to base it on Sascha's imx-common-clk series than -rc, because otherwise it will keep patching clock file that has been removed by imx-common-clk series. It also depends on imx-pinctrl pull-request I just sent to be functional. Note: when imx-common-clk and imx-pinctrl get merged together, the following files will have conflicts. But the conflicts should not be so hard to resolve. [arnd: resolved those merge conflicts by pulling pinctrl branch] * imx/dt: (24 commits) ARM: dts: imx53-qsb: enable audio support ARM: dts: imx51-babbage: enable audio support ARM: imx: add audio codec clk lookup for imx53-qsb ARM: imx: add audmux pad setting for imx51-babbage ARM: imx: add more imx5 ssi clocks ARM: dts: imx53-qsb: Add Dialog DA9053 PMIC support ARM: dts: imx6q-sabrelite: add serial2 pinctrl support ARM: dts: imx6q-sabrelite: add sound device imx6q-sabrelite-sgtl5000 ARM: imx6q_sabrelite: clk_register_clkdev cko1 for sgtl5000 ARM: imx6q: add ssi1_ipg clk_lookup ARM: dts: imx6q-sabrelite: add audmux pinctrl support ARM: dts: imx6q-sabrelite: add i2c1 pinctrl support ARM: dts: imx6q-sabrelite: add audmux device ARM: dts: imx6q-sabrelite: add ssi device ARM: dts: imx6q-arm2: add pinctrl state for usdhc ARM: imx6: Add UART2 for low-level debug ARM: imx6q: register phy fixup only when CONFIG_PHYLIB is enabled ARM: imx6q: move imx6q_sabrelite specific code to a dedicated function ARM: dts: imx6q-sabrelite: Add SPI NOR support ARM: dts: Add basic support for imx6q-sabresd ... Pulls in imx/pinctrl and imx/clock as dependencies. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/plat-mxc')
-rw-r--r--arch/arm/plat-mxc/clock.c11
-rw-r--r--arch/arm/plat-mxc/include/mach/clock.h4
-rw-r--r--arch/arm/plat-mxc/include/mach/debug-macro.S2
-rw-r--r--arch/arm/plat-mxc/include/mach/mx6q.h2
-rw-r--r--arch/arm/plat-mxc/time.c14
5 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm/plat-mxc/clock.c b/arch/arm/plat-mxc/clock.c
index 2ed3ab173add..5079787273d2 100644
--- a/arch/arm/plat-mxc/clock.c
+++ b/arch/arm/plat-mxc/clock.c
@@ -41,6 +41,7 @@
#include <mach/clock.h>
#include <mach/hardware.h>
+#ifndef CONFIG_COMMON_CLK
static LIST_HEAD(clocks);
static DEFINE_MUTEX(clocks_mutex);
@@ -200,6 +201,16 @@ struct clk *clk_get_parent(struct clk *clk)
}
EXPORT_SYMBOL(clk_get_parent);
+#else
+
+/*
+ * Lock to protect the clock module (ccm) registers. Used
+ * on all i.MXs
+ */
+DEFINE_SPINLOCK(imx_ccm_lock);
+
+#endif /* CONFIG_COMMON_CLK */
+
/*
* Get the resulting clock rate from a PLL register value and the input
* frequency. PLLs with this register layout can at least be found on
diff --git a/arch/arm/plat-mxc/include/mach/clock.h b/arch/arm/plat-mxc/include/mach/clock.h
index 753a5988d85c..bd940c795cbb 100644
--- a/arch/arm/plat-mxc/include/mach/clock.h
+++ b/arch/arm/plat-mxc/include/mach/clock.h
@@ -23,6 +23,7 @@
#ifndef __ASSEMBLY__
#include <linux/list.h>
+#ifndef CONFIG_COMMON_CLK
struct module;
struct clk {
@@ -59,6 +60,9 @@ struct clk {
int clk_register(struct clk *clk);
void clk_unregister(struct clk *clk);
+#endif /* CONFIG_COMMON_CLK */
+
+extern spinlock_t imx_ccm_lock;
unsigned long mxc_decode_pll(unsigned int pll, u32 f_ref);
diff --git a/arch/arm/plat-mxc/include/mach/debug-macro.S b/arch/arm/plat-mxc/include/mach/debug-macro.S
index 8ddda365f1a0..761e45f9456f 100644
--- a/arch/arm/plat-mxc/include/mach/debug-macro.S
+++ b/arch/arm/plat-mxc/include/mach/debug-macro.S
@@ -24,6 +24,8 @@
#define UART_PADDR MX51_UART1_BASE_ADDR
#elif defined (CONFIG_DEBUG_IMX50_IMX53_UART)
#define UART_PADDR MX53_UART1_BASE_ADDR
+#elif defined (CONFIG_DEBUG_IMX6Q_UART2)
+#define UART_PADDR MX6Q_UART2_BASE_ADDR
#elif defined (CONFIG_DEBUG_IMX6Q_UART4)
#define UART_PADDR MX6Q_UART4_BASE_ADDR
#endif
diff --git a/arch/arm/plat-mxc/include/mach/mx6q.h b/arch/arm/plat-mxc/include/mach/mx6q.h
index 254a561a2799..f7e7dbac8f4b 100644
--- a/arch/arm/plat-mxc/include/mach/mx6q.h
+++ b/arch/arm/plat-mxc/include/mach/mx6q.h
@@ -27,6 +27,8 @@
#define MX6Q_CCM_SIZE 0x4000
#define MX6Q_ANATOP_BASE_ADDR 0x020c8000
#define MX6Q_ANATOP_SIZE 0x1000
+#define MX6Q_UART2_BASE_ADDR 0x021e8000
+#define MX6Q_UART2_SIZE 0x4000
#define MX6Q_UART4_BASE_ADDR 0x021f0000
#define MX6Q_UART4_SIZE 0x4000
diff --git a/arch/arm/plat-mxc/time.c b/arch/arm/plat-mxc/time.c
index 7daf7c9a413b..99f958ca6cb8 100644
--- a/arch/arm/plat-mxc/time.c
+++ b/arch/arm/plat-mxc/time.c
@@ -25,6 +25,7 @@
#include <linux/irq.h>
#include <linux/clockchips.h>
#include <linux/clk.h>
+#include <linux/err.h>
#include <mach/hardware.h>
#include <asm/sched_clock.h>
@@ -282,6 +283,19 @@ static int __init mxc_clockevent_init(struct clk *timer_clk)
void __init mxc_timer_init(struct clk *timer_clk, void __iomem *base, int irq)
{
uint32_t tctl_val;
+ struct clk *timer_ipg_clk;
+
+ if (!timer_clk) {
+ timer_clk = clk_get_sys("imx-gpt.0", "per");
+ if (IS_ERR(timer_clk)) {
+ pr_err("i.MX timer: unable to get clk\n");
+ return;
+ }
+
+ timer_ipg_clk = clk_get_sys("imx-gpt.0", "ipg");
+ if (!IS_ERR(timer_ipg_clk))
+ clk_prepare_enable(timer_ipg_clk);
+ }
clk_prepare_enable(timer_clk);