summaryrefslogtreecommitdiff
path: root/arch/arm/mach-omap2/cm2xxx_3xxx.h
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/cm2xxx_3xxx.h
Initial import
Diffstat (limited to 'arch/arm/mach-omap2/cm2xxx_3xxx.h')
-rw-r--r--arch/arm/mach-omap2/cm2xxx_3xxx.h120
1 files changed, 120 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/cm2xxx_3xxx.h b/arch/arm/mach-omap2/cm2xxx_3xxx.h
new file mode 100644
index 000000000..72928a3ce
--- /dev/null
+++ b/arch/arm/mach-omap2/cm2xxx_3xxx.h
@@ -0,0 +1,120 @@
+/*
+ * OMAP2/3 Clock Management (CM) register definitions
+ *
+ * Copyright (C) 2007-2009 Texas Instruments, Inc.
+ * Copyright (C) 2007-2010 Nokia Corporation
+ * Paul Walmsley
+ *
+ * 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.
+ *
+ * The CM hardware modules on the OMAP2/3 are quite similar to each
+ * other. The CM modules/instances on OMAP4 are quite different, so
+ * they are handled in a separate file.
+ */
+#ifndef __ARCH_ASM_MACH_OMAP2_CM2XXX_3XXX_H
+#define __ARCH_ASM_MACH_OMAP2_CM2XXX_3XXX_H
+
+#include "cm.h"
+
+/*
+ * Module specific CM register offsets from CM_BASE + domain offset
+ * Use cm_{read,write}_mod_reg() with these registers.
+ * These register offsets generally appear in more than one PRCM submodule.
+ */
+
+/* Common between OMAP2 and OMAP3 */
+
+#define CM_FCLKEN 0x0000
+#define CM_FCLKEN1 CM_FCLKEN
+#define CM_CLKEN CM_FCLKEN
+#define CM_ICLKEN 0x0010
+#define CM_ICLKEN1 CM_ICLKEN
+#define CM_ICLKEN2 0x0014
+#define CM_ICLKEN3 0x0018
+#define CM_IDLEST 0x0020
+#define CM_IDLEST1 CM_IDLEST
+#define CM_IDLEST2 0x0024
+#define OMAP2430_CM_IDLEST3 0x0028
+#define CM_AUTOIDLE 0x0030
+#define CM_AUTOIDLE1 CM_AUTOIDLE
+#define CM_AUTOIDLE2 0x0034
+#define CM_AUTOIDLE3 0x0038
+#define CM_CLKSEL 0x0040
+#define CM_CLKSEL1 CM_CLKSEL
+#define CM_CLKSEL2 0x0044
+#define OMAP2_CM_CLKSTCTRL 0x0048
+
+#ifndef __ASSEMBLER__
+
+#include <linux/io.h>
+
+static inline u32 omap2_cm_read_mod_reg(s16 module, u16 idx)
+{
+ return readl_relaxed(cm_base + module + idx);
+}
+
+static inline void omap2_cm_write_mod_reg(u32 val, s16 module, u16 idx)
+{
+ writel_relaxed(val, cm_base + module + idx);
+}
+
+/* Read-modify-write a register in a CM module. Caller must lock */
+static inline u32 omap2_cm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module,
+ s16 idx)
+{
+ u32 v;
+
+ v = omap2_cm_read_mod_reg(module, idx);
+ v &= ~mask;
+ v |= bits;
+ omap2_cm_write_mod_reg(v, module, idx);
+
+ return v;
+}
+
+/* Read a CM register, AND it, and shift the result down to bit 0 */
+static inline u32 omap2_cm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask)
+{
+ u32 v;
+
+ v = omap2_cm_read_mod_reg(domain, idx);
+ v &= mask;
+ v >>= __ffs(mask);
+
+ return v;
+}
+
+static inline u32 omap2_cm_set_mod_reg_bits(u32 bits, s16 module, s16 idx)
+{
+ return omap2_cm_rmw_mod_reg_bits(bits, bits, module, idx);
+}
+
+static inline u32 omap2_cm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx)
+{
+ return omap2_cm_rmw_mod_reg_bits(bits, 0x0, module, idx);
+}
+
+extern int omap2xxx_cm_apll54_enable(void);
+extern void omap2xxx_cm_apll54_disable(void);
+extern int omap2xxx_cm_apll96_enable(void);
+extern void omap2xxx_cm_apll96_disable(void);
+
+#endif
+
+/* CM register bits shared between 24XX and 3430 */
+
+/* CM_CLKSEL_GFX */
+#define OMAP_CLKSEL_GFX_SHIFT 0
+#define OMAP_CLKSEL_GFX_MASK (0x7 << 0)
+#define OMAP_CLKSEL_GFX_WIDTH 3
+
+/* CM_ICLKEN_GFX */
+#define OMAP_EN_GFX_SHIFT 0
+#define OMAP_EN_GFX_MASK (1 << 0)
+
+/* CM_IDLEST_GFX */
+#define OMAP_ST_GFX_MASK (1 << 0)
+
+#endif