summaryrefslogtreecommitdiff
path: root/arch/arm/mach-omap2/clock2430.c
diff options
context:
space:
mode:
authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/arm/mach-omap2/clock2430.c
Initial import
Diffstat (limited to 'arch/arm/mach-omap2/clock2430.c')
-rw-r--r--arch/arm/mach-omap2/clock2430.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/clock2430.c b/arch/arm/mach-omap2/clock2430.c
new file mode 100644
index 000000000..cef0c8d1d
--- /dev/null
+++ b/arch/arm/mach-omap2/clock2430.c
@@ -0,0 +1,57 @@
+/*
+ * clock2430.c - OMAP2430-specific clock integration code
+ *
+ * Copyright (C) 2005-2008 Texas Instruments, Inc.
+ * Copyright (C) 2004-2010 Nokia Corporation
+ *
+ * Contacts:
+ * Richard Woodruff <r-woodruff2@ti.com>
+ * Paul Walmsley
+ *
+ * Based on earlier work by Tuukka Tikkanen, Tony Lindgren,
+ * Gordon McNutt and RidgeRun, Inc.
+ *
+ * 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.
+ */
+#undef DEBUG
+
+#include <linux/kernel.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include "soc.h"
+#include "iomap.h"
+#include "clock.h"
+#include "clock2xxx.h"
+#include "cm2xxx.h"
+#include "cm-regbits-24xx.h"
+
+/**
+ * omap2430_clk_i2chs_find_idlest - return CM_IDLEST info for 2430 I2CHS
+ * @clk: struct clk * being enabled
+ * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into
+ * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into
+ * @idlest_val: pointer to a u8 to store the CM_IDLEST indicator
+ *
+ * OMAP2430 I2CHS CM_IDLEST bits are in CM_IDLEST1_CORE, but the
+ * CM_*CLKEN bits are in CM_{I,F}CLKEN2_CORE. This custom function
+ * passes back the correct CM_IDLEST register address for I2CHS
+ * modules. No return value.
+ */
+static void omap2430_clk_i2chs_find_idlest(struct clk_hw_omap *clk,
+ void __iomem **idlest_reg,
+ u8 *idlest_bit,
+ u8 *idlest_val)
+{
+ *idlest_reg = OMAP2430_CM_REGADDR(CORE_MOD, CM_IDLEST);
+ *idlest_bit = clk->enable_bit;
+ *idlest_val = OMAP24XX_CM_IDLEST_VAL;
+}
+
+/* 2430 I2CHS has non-standard IDLEST register */
+const struct clk_hw_omap_ops clkhwops_omap2430_i2chs_wait = {
+ .find_idlest = omap2430_clk_i2chs_find_idlest,
+ .find_companion = omap2_clk_dflt_find_companion,
+};