Thread (12 messages) 12 messages, 3 authors, 2013-07-08

[PATCH 2/4] ARM: OMAP5: clockdomain data: add init file for omap54xx

From: Mike Turquette <hidden>
Date: 2013-06-28 21:03:51
Also in: linux-devicetree, linux-omap

Quoting Tero Kristo (2013-06-27 01:38:17)
quoted hunk ↗ jump to hunk
cclock54xx_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 <redacted>
---
 arch/arm/mach-omap2/cclock54xx_data.c |   80 +++++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 arch/arm/mach-omap2/cclock54xx_data.c
diff --git a/arch/arm/mach-omap2/cclock54xx_data.c b/arch/arm/mach-omap2/cclock54xx_data.c
new file mode 100644
Why not drivers/clk/omap/clk-omap54xx.c?

Regards,
Mike
quoted hunk ↗ jump to hunk
index 0000000..f23f44e
--- /dev/null
+++ b/arch/arm/mach-omap2/cclock54xx_data.c
@@ -0,0 +1,74 @@
+/*
+ * OMAP54xx 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/clkdev.h>
+#include <linux/io.h>
+#include <linux/clk-provider.h>
+#include <linux/clk/omap.h>
+
+#include "soc.h"
+#include "clock.h"
+
+#define OMAP5_DPLL_ABE_DEFFREQ                         98304000
+
+/*
+ * clkdev
+ */
+static struct omap_dt_clk omap54xx_clks[] = {
+       DT_CLK(NULL,    "timer_32k_ck", "sys_32k_ck"),
+       DT_CLK("omap_timer.1",  "sys_ck",               "sys_clkin"),
+       DT_CLK("omap_timer.2",  "sys_ck",               "sys_clkin"),
+       DT_CLK("omap_timer.3",  "sys_ck",               "sys_clkin"),
+       DT_CLK("omap_timer.4",  "sys_ck",               "sys_clkin"),
+       DT_CLK("omap_timer.9",  "sys_ck",               "sys_clkin"),
+       DT_CLK("omap_timer.10", "sys_ck",               "sys_clkin"),
+       DT_CLK("omap_timer.11", "sys_ck",               "sys_clkin"),
+       DT_CLK("omap_timer.5",  "sys_ck",               "dss_syc_gfclk_div"),
+       DT_CLK("omap_timer.6",  "sys_ck",               "dss_syc_gfclk_div"),
+       DT_CLK("omap_timer.7",  "sys_ck",               "dss_syc_gfclk_div"),
+       DT_CLK("omap_timer.8",  "sys_ck",               "dss_syc_gfclk_div"),
+};
+
+int __init omap5xxx_clk_init(void)
+{
+       struct clk *abe_dpll_ref, *sys_32k_ck, *abe_dpll;
+       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(omap54xx_clks, ARRAY_SIZE(omap54xx_clks));
+
+       omap2_clk_disable_autoidle_all();
+
+       abe_dpll_ref = clk_get_sys(NULL, "abe_dpll_clk_mux");
+       sys_32k_ck = clk_get_sys(NULL, "sys_32k_ck");
+       rc = clk_set_parent(abe_dpll_ref, sys_32k_ck);
+       abe_dpll = clk_get_sys(NULL, "dpll_abe_ck");
+       if (!rc)
+               rc = clk_set_rate(abe_dpll, OMAP5_DPLL_ABE_DEFFREQ);
+       if (rc)
+               pr_err("%s: failed to configure ABE DPLL!\n", __func__);
+
+       return 0;
+}
-- 
1.7.9.5
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