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authorAndrew Lunn <andrew@lunn.ch>2011-12-15 11:15:07 +0400
committerMike Turquette <mturquette@linaro.org>2012-05-09 03:33:39 +0400
commit2f129bf4aab684bef1e82e747b709a5025ecb698 (patch)
tree4be6e04fc306cfad25b3b86f831cd4d462c10f44 /arch/arm/mach-dove/common.c
parentf0948f59dbc8e725a96ba16da666e8f5cdd43ba8 (diff)
downloadlinux-2f129bf4aab684bef1e82e747b709a5025ecb698.tar.xz
ARM: Orion: Add clocks using the generic clk infrastructure.
Add tclk as a fixed rate clock for all platforms. In addition, on kirkwood, add a gated clock for most of the clocks which can be gated. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Jamie Lentin <jm@lentin.co.uk> [mturquette@linaro.org: removed redundant CLKDEV_LOOKUP from Kconfig] [mturquette@linaro.org: removed redundant clk.h from mach-dove/common.c] Signed-off-by: Mike Turquette <mturquette@linaro.org>
Diffstat (limited to 'arch/arm/mach-dove/common.c')
-rw-r--r--arch/arm/mach-dove/common.c22
1 files changed, 16 insertions, 6 deletions
diff --git a/arch/arm/mach-dove/common.c b/arch/arm/mach-dove/common.c
index bda7aca04ca0..63fe6e612e98 100644
--- a/arch/arm/mach-dove/common.c
+++ b/arch/arm/mach-dove/common.c
@@ -13,7 +13,7 @@
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/pci.h>
-#include <linux/clk.h>
+#include <linux/clk-provider.h>
#include <linux/ata_platform.h>
#include <linux/gpio.h>
#include <asm/page.h>
@@ -68,6 +68,17 @@ void __init dove_map_io(void)
}
/*****************************************************************************
+ * CLK tree
+ ****************************************************************************/
+static struct clk *tclk;
+
+static void __init clk_init(void)
+{
+ tclk = clk_register_fixed_rate(NULL, "tclk", NULL, CLK_IS_ROOT,
+ get_tclk());
+}
+
+/*****************************************************************************
* EHCI0
****************************************************************************/
void __init dove_ehci0_init(void)
@@ -272,18 +283,17 @@ void __init dove_sdio1_init(void)
void __init dove_init(void)
{
- int tclk;
-
- tclk = get_tclk();
-
printk(KERN_INFO "Dove 88AP510 SoC, ");
- printk(KERN_INFO "TCLK = %dMHz\n", (tclk + 499999) / 1000000);
+ printk(KERN_INFO "TCLK = %dMHz\n", (get_tclk() + 499999) / 1000000);
#ifdef CONFIG_CACHE_TAUROS2
tauros2_init();
#endif
dove_setup_cpu_mbus();
+ /* Setup root of clk tree */
+ clk_init();
+
/* internal devices that every board has */
dove_rtc_init();
dove_xor0_init();