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authorMichael Hennerich <michael.hennerich@analog.com>2008-05-07 11:41:26 +0800
committerBryan Wu <cooloney@kernel.org>2008-05-07 11:41:26 +0800
commit14b03204c8060d036b04cbb18bbd6f6f311f4fed (patch)
treee4ac8f5e2a74fc63dd811aac9e349ac890670134 /arch/blackfin/mach-bf527
parent19d6d7d53c8ff809182a1f092d2c6918146414e9 (diff)
downloadop-kernel-dev-14b03204c8060d036b04cbb18bbd6f6f311f4fed.zip
op-kernel-dev-14b03204c8060d036b04cbb18bbd6f6f311f4fed.tar.gz
[Blackfin] arch: Functional power management support: Add CPU and platform voltage scaling support
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/mach-bf527')
-rw-r--r--arch/blackfin/mach-bf527/boards/ezkit.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c
index 583d538..90dd086 100644
--- a/arch/blackfin/mach-bf527/boards/ezkit.c
+++ b/arch/blackfin/mach-bf527/boards/ezkit.c
@@ -50,6 +50,7 @@
#include <asm/reboot.h>
#include <asm/nand.h>
#include <asm/portmux.h>
+#include <asm/dpmc.h>
#include <linux/spi/ad7877.h>
/*
@@ -839,7 +840,32 @@ static struct platform_device bfin_gpios_device = {
.resource = &bfin_gpios_resources,
};
+static const unsigned int cclk_vlev_datasheet[] =
+{
+ VRPAIR(VLEV_100, 400000000),
+ VRPAIR(VLEV_105, 426000000),
+ VRPAIR(VLEV_110, 500000000),
+ VRPAIR(VLEV_115, 533000000),
+ VRPAIR(VLEV_120, 600000000),
+};
+
+static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
+ .tuple_tab = cclk_vlev_datasheet,
+ .tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
+ .vr_settling_time = 25 /* us */,
+};
+
+static struct platform_device bfin_dpmc = {
+ .name = "bfin dpmc",
+ .dev = {
+ .platform_data = &bfin_dmpc_vreg_data,
+ },
+};
+
static struct platform_device *stamp_devices[] __initdata = {
+
+ &bfin_dpmc,
+
#if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
&bf5xx_nand_device,
#endif
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