[PATCH 4/4] ARM: DRA7: clockdomain data: add init file for dra7
Tero Kristo
t-kristo at ti.com
Mon Jul 8 03:29:28 EDT 2013
On 06/29/2013 12:04 AM, Mike Turquette wrote:
> Quoting Tero Kristo (2013-06-27 01:38:19)
>> cclock7xx_data.c now contains only init function and the clkdev mapping
>> that is still needed by some drivers. Eventually most of this file can
>> be removed, once a common location for the clk init can be found, and
>> the clkdev mapping is no longer needed.
>>
>> Signed-off-by: Tero Kristo <t-kristo at ti.com>
>> ---
>> arch/arm/mach-omap2/cclock7xx_data.c | 93 ++++++++++++++++++++++++++++++++++
>> 1 file changed, 93 insertions(+)
>> create mode 100644 arch/arm/mach-omap2/cclock7xx_data.c
>
> Why not drivers/clk/omap/clk-dra7xx.c?
Hi Mike,
Same as O5, I can move this over in next rev.
-Tero
>
> Regards,
> Mike
>
>>
>> diff --git a/arch/arm/mach-omap2/cclock7xx_data.c b/arch/arm/mach-omap2/cclock7xx_data.c
>> new file mode 100644
>> index 0000000..dba528a
>> --- /dev/null
>> +++ b/arch/arm/mach-omap2/cclock7xx_data.c
>> @@ -0,0 +1,83 @@
>> +/*
>> + * DRA7xx Clock data
>> + *
>> + * Copyright (C) 2013 Texas Instruments, Inc.
>> + *
>> + * Paul Walmsley (paul at pwsan.com)
>> + * Rajendra Nayak (rnayak at ti.com)
>> + * Benoit Cousson (b-cousson at ti.com)
>> + * Mike Turquette (mturquette at linaro.org)
>> + * Tero Kristo (t-kristo at ti.com)
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> + */
>> +
>> +#include <linux/kernel.h>
>> +#include <linux/list.h>
>> +#include <linux/clk-provider.h>
>> +#include <linux/clkdev.h>
>> +#include <linux/io.h>
>> +#include <linux/clk/omap.h>
>> +
>> +#include "soc.h"
>> +#include "clock.h"
>> +
>> +#define DRA7_DPLL_ABE_DEFFREQ 361267200
>> +#define DRA7_DPLL_GMAC_DEFFREQ 1000000000
>> +
>> +/*
>> + * clkdev
>> + */
>> +
>> +static struct omap_dt_clk dra7xx_clks[] = {
>> + DT_CLK(NULL, "timer_32k_ck", "sys_32k_ck"),
>> + DT_CLK("4ae18000.timer", "timer_sys_ck", "sys_clkin2"),
>> + DT_CLK("48032000.timer", "timer_sys_ck", "sys_clkin2"),
>> + DT_CLK("48034000.timer", "timer_sys_ck", "sys_clkin2"),
>> + DT_CLK("48036000.timer", "timer_sys_ck", "sys_clkin2"),
>> + DT_CLK("4803e000.timer", "timer_sys_ck", "sys_clkin2"),
>> + DT_CLK("48086000.timer", "timer_sys_ck", "sys_clkin2"),
>> + DT_CLK("48088000.timer", "timer_sys_ck", "sys_clkin2"),
>> + DT_CLK("48820000.timer", "timer_sys_ck", "timer_sys_clk_div"),
>> + DT_CLK("48822000.timer", "timer_sys_ck", "timer_sys_clk_div"),
>> + DT_CLK("48824000.timer", "timer_sys_ck", "timer_sys_clk_div"),
>> + DT_CLK("48826000.timer", "timer_sys_ck", "timer_sys_clk_div"),
>> + DT_CLK(NULL, "sys_clkin", "sys_clkin1"),
>> +};
>> +
>> +int __init dra7xx_clk_init(void)
>> +{
>> + struct clk *abe_dpll_mux, *sys_clkin2, *dpll_ck;
>> + int rc;
>> + /*
>> + * Must stay commented until all OMAP SoC drivers are
>> + * converted to runtime PM, or drivers may start crashing
>> + *
>> + * omap2_clk_disable_clkdm_control();
>> + */
>> +
>> + dt_omap_clk_init();
>> +
>> + omap_dt_clocks_register(dra7xx_clks, ARRAY_SIZE(dra7xx_clks));
>> +
>> + omap2_clk_disable_autoidle_all();
>> +
>> + abe_dpll_mux = clk_get_sys(NULL, "abe_dpll_sys_clk_mux");
>> + sys_clkin2 = clk_get_sys(NULL, "sys_clkin2");
>> + dpll_ck = clk_get_sys(NULL, "dpll_abe_ck");
>> +
>> + rc = clk_set_parent(abe_dpll_mux, sys_clkin2);
>> + if (!rc)
>> + rc = clk_set_rate(dpll_ck, DRA7_DPLL_ABE_DEFFREQ);
>> + if (rc)
>> + pr_err("%s: failed to configure ABE DPLL!\n", __func__);
>> +
>> + dpll_ck = clk_get_sys(NULL, "dpll_gmac_ck");
>> + rc = clk_set_rate(dpll_ck, DRA7_DPLL_GMAC_DEFFREQ);
>> + if (rc)
>> + pr_err("%s: failed to configure GMAC DPLL!\n", __func__);
>> +
>> + return 0;
>> +}
>> --
>> 1.7.9.5
More information about the linux-arm-kernel
mailing list