diff options
| author |   Shawn Guo <shawn.guo@linaro.org> | 2013-03-26 21:11:02 +0800 |
|---|---|---|
| committer | Shawn Guo <shawn.guo@linaro.org> | 2013-04-01 16:30:04 +0800 |
| commit | 38d6590f0f54ad85a7e841ef6c2c6f0fc8e2e832 (patch) | |
| tree | b35f2b387ee5270dbe14b4c5ad687ffd323644e9 /drivers/clk/mxs/clk-imx23.c | |
| parent | ARM: mxs: remove unneeded mach-types.h inclusion (diff) | |
| download | linux-dev-38d6590f0f54ad85a7e841ef6c2c6f0fc8e2e832.tar.xz linux-dev-38d6590f0f54ad85a7e841ef6c2c6f0fc8e2e832.zip | |
clk: mxs: get base address from device tree
Instead of using the static definitions, get clkctrl and digctl base
addresses with mapping from device tree.
Use macro on variable is not nice, but it's done here to save huge
pointless diff stat.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Mike Turquette <mturquette@linaro.org>
Diffstat (limited to 'drivers/clk/mxs/clk-imx23.c')
| -rw-r--r-- | drivers/clk/mxs/clk-imx23.c | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/drivers/clk/mxs/clk-imx23.c b/drivers/clk/mxs/clk-imx23.c index 46ae6bebe445..0c8fda48d0a2 100644 --- a/drivers/clk/mxs/clk-imx23.c +++ b/drivers/clk/mxs/clk-imx23.c @@ -15,11 +15,16 @@ #include <linux/init.h> #include <linux/io.h> #include <linux/of.h> +#include <linux/of_address.h> #include <mach/mx23.h> #include "clk.h" -#define DIGCTRL MX23_IO_ADDRESS(MX23_DIGCTL_BASE_ADDR) -#define CLKCTRL MX23_IO_ADDRESS(MX23_CLKCTRL_BASE_ADDR) +static void __iomem *clkctrl; +static void __iomem *digctrl; + +#define CLKCTRL clkctrl +#define DIGCTRL digctrl + #define PLLCTRL0 (CLKCTRL + 0x0000) #define CPU (CLKCTRL + 0x0020) #define HBUS (CLKCTRL + 0x0030) @@ -100,6 +105,14 @@ int __init mx23_clocks_init(void) struct device_node *np; u32 i; + np = of_find_compatible_node(NULL, NULL, "fsl,imx23-digctl"); + digctrl = of_iomap(np, 0); + WARN_ON(!digctrl); + + np = of_find_compatible_node(NULL, NULL, "fsl,imx23-clkctrl"); + clkctrl = of_iomap(np, 0); + WARN_ON(!clkctrl); + clk_misc_init(); clks[ref_xtal] = mxs_clk_fixed("ref_xtal", 24000000); @@ -152,12 +165,9 @@ int __init mx23_clocks_init(void) return PTR_ERR(clks[i]); } - np = of_find_compatible_node(NULL, NULL, "fsl,imx23-clkctrl"); - if (np) { - clk_data.clks = clks; - clk_data.clk_num = ARRAY_SIZE(clks); - of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); - } + clk_data.clks = clks; + clk_data.clk_num = ARRAY_SIZE(clks); + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); for (i = 0; i < ARRAY_SIZE(clks_init_on); i++) clk_prepare_enable(clks[clks_init_on[i]]); |