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author | Denis Carikli <denis@eukrea.com> | 2014-06-25 14:41:36 +0200 |
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committer | Shawn Guo <shawn.guo@freescale.com> | 2014-07-18 16:11:32 +0800 |
commit | e9db15e3221f2efef205dc1df584a3ca21b58dfa (patch) | |
tree | a72fbc693583d1f9b23f6d6af39cb1956f1d5081 /arch/arm/mach-imx/clk-imx25.c | |
parent | 988eb354d4de9ca1f1c3faa491d5e67f5513484a (diff) | |
download | op-kernel-dev-e9db15e3221f2efef205dc1df584a3ca21b58dfa.zip op-kernel-dev-e9db15e3221f2efef205dc1df584a3ca21b58dfa.tar.gz |
ARM: i.MX25 clk: Use of_clk_init() for DT case
Replace .init_time() hook with of_clk_init() for DT targets.
Based on:
d4347ee ARM: i.MX27 clk: Use of_clk_init() for DT case
Signed-off-by: Denis Carikli <denis@eukrea.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Diffstat (limited to 'arch/arm/mach-imx/clk-imx25.c')
-rw-r--r-- | arch/arm/mach-imx/clk-imx25.c | 35 |
1 files changed, 20 insertions, 15 deletions
diff --git a/arch/arm/mach-imx/clk-imx25.c b/arch/arm/mach-imx/clk-imx25.c index e759a6d..cab34c3 100644 --- a/arch/arm/mach-imx/clk-imx25.c +++ b/arch/arm/mach-imx/clk-imx25.c @@ -32,8 +32,6 @@ #include "hardware.h" #include "mx25.h" -#define CRM_BASE MX25_IO_ADDRESS(MX25_CRM_BASE_ADDR) - #define CCM_MPCTL 0x00 #define CCM_UPCTL 0x04 #define CCM_CCTL 0x08 @@ -56,7 +54,7 @@ #define CCM_LTR3 0x4c #define CCM_MCR 0x64 -#define ccm(x) (CRM_BASE + (x)) +#define ccm(x) (ccm_base + (x)) static struct clk_onecell_data clk_data; @@ -91,8 +89,11 @@ enum mx25_clks { static struct clk *clk[clk_max]; -static int __init __mx25_clocks_init(unsigned long osc_rate) +static int __init __mx25_clocks_init(unsigned long osc_rate, + void __iomem *ccm_base) { + BUG_ON(!ccm_base); + clk[dummy] = imx_clk_fixed("dummy", 0); clk[osc] = imx_clk_fixed("osc", osc_rate); clk[mpll] = imx_clk_pllv1("mpll", "osc", ccm(CCM_MPCTL)); @@ -240,7 +241,11 @@ static int __init __mx25_clocks_init(unsigned long osc_rate) int __init mx25_clocks_init(void) { - __mx25_clocks_init(24000000); + void __iomem *ccm; + + ccm = ioremap(MX25_CRM_BASE_ADDR, SZ_16K); + + __mx25_clocks_init(24000000, ccm); clk_register_clkdev(clk[gpt1_ipg], "ipg", "imx-gpt.0"); clk_register_clkdev(clk[gpt_ipg_per], "per", "imx-gpt.0"); @@ -308,29 +313,29 @@ int __init mx25_clocks_init(void) return 0; } -int __init mx25_clocks_init_dt(void) +static void __init mx25_clocks_init_dt(struct device_node *np) { - struct device_node *np; + struct device_node *refnp; unsigned long osc_rate = 24000000; + void __iomem *ccm; /* retrieve the freqency of fixed clocks from device tree */ - for_each_compatible_node(np, NULL, "fixed-clock") { + for_each_compatible_node(refnp, NULL, "fixed-clock") { u32 rate; - if (of_property_read_u32(np, "clock-frequency", &rate)) + if (of_property_read_u32(refnp, "clock-frequency", &rate)) continue; - if (of_device_is_compatible(np, "fsl,imx-osc")) + if (of_device_is_compatible(refnp, "fsl,imx-osc")) osc_rate = rate; } - np = of_find_compatible_node(NULL, NULL, "fsl,imx25-ccm"); + ccm = of_iomap(np, 0); + __mx25_clocks_init(osc_rate, ccm); + clk_data.clks = clk; clk_data.clk_num = ARRAY_SIZE(clk); of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); - __mx25_clocks_init(osc_rate); - mxc_timer_init_dt(of_find_compatible_node(NULL, NULL, "fsl,imx25-gpt")); - - return 0; } +CLK_OF_DECLARE(imx25_ccm, "fsl,imx25-ccm", mx25_clocks_init_dt); |