[PATCH 2/4] ARM: OMAP5: clockdomain data: add init file for omap54xx
Tero Kristo
t-kristo at ti.com
Thu Jun 27 04:38:17 EDT 2013
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 <t-kristo at ti.com>
---
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
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
More information about the linux-arm-kernel
mailing list