[PATCH 4/4] ARM: DRA7: clockdomain data: add init file for dra7

Tero Kristo t-kristo at ti.com
Thu Jun 27 04:38:19 EDT 2013


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

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




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