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Diffstat (limited to 'arch/arm/mach-davinci/clock.h')
-rw-r--r--arch/arm/mach-davinci/clock.h87
1 files changed, 75 insertions, 12 deletions
diff --git a/arch/arm/mach-davinci/clock.h b/arch/arm/mach-davinci/clock.h
index ed47079a52e..35736ec202f 100644
--- a/arch/arm/mach-davinci/clock.h
+++ b/arch/arm/mach-davinci/clock.h
@@ -1,7 +1,8 @@
/*
* TI DaVinci clock definitions
*
- * Copyright (C) 2006 Texas Instruments.
+ * Copyright (C) 2006-2007 Texas Instruments.
+ * Copyright (C) 2008-2009 Deep Root Systems, LLC
*
* 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
@@ -11,23 +12,85 @@
#ifndef __ARCH_ARM_DAVINCI_CLOCK_H
#define __ARCH_ARM_DAVINCI_CLOCK_H
+#include <linux/list.h>
+#include <asm/clkdev.h>
+
+#define DAVINCI_PLL1_BASE 0x01c40800
+#define DAVINCI_PLL2_BASE 0x01c40c00
+#define MAX_PLL 2
+
+/* PLL/Reset register offsets */
+#define PLLCTL 0x100
+#define PLLCTL_PLLEN BIT(0)
+#define PLLCTL_CLKMODE BIT(8)
+
+#define PLLM 0x110
+#define PLLM_PLLM_MASK 0xff
+
+#define PREDIV 0x114
+#define PLLDIV1 0x118
+#define PLLDIV2 0x11c
+#define PLLDIV3 0x120
+#define POSTDIV 0x128
+#define BPDIV 0x12c
+#define PLLCMD 0x138
+#define PLLSTAT 0x13c
+#define PLLALNCTL 0x140
+#define PLLDCHANGE 0x144
+#define PLLCKEN 0x148
+#define PLLCKSTAT 0x14c
+#define PLLSYSTAT 0x150
+#define PLLDIV4 0x160
+#define PLLDIV5 0x164
+#define PLLDIV6 0x168
+#define PLLDIV7 0x16c
+#define PLLDIV8 0x170
+#define PLLDIV9 0x174
+#define PLLDIV_EN BIT(15)
+#define PLLDIV_RATIO_MASK 0x1f
+
+struct pll_data {
+ u32 phys_base;
+ void __iomem *base;
+ u32 num;
+ u32 flags;
+ u32 input_rate;
+};
+#define PLL_HAS_PREDIV 0x01
+#define PLL_HAS_POSTDIV 0x02
+
struct clk {
struct list_head node;
struct module *owner;
const char *name;
- unsigned int *rate;
- int id;
- __s8 usecount;
- __u8 flags;
- __u8 lpsc;
+ unsigned long rate;
+ u8 usecount;
+ u8 flags;
+ u8 lpsc;
+ struct clk *parent;
+ struct pll_data *pll_data;
+ u32 div_reg;
};
/* Clock flags */
-#define RATE_CKCTL 1
-#define RATE_FIXED 2
-#define RATE_PROPAGATES 4
-#define VIRTUAL_CLOCK 8
-#define ALWAYS_ENABLED 16
-#define ENABLE_REG_32BIT 32
+#define ALWAYS_ENABLED BIT(1)
+#define CLK_PSC BIT(2)
+#define PSC_DSP BIT(3) /* PSC uses DSP domain, not ARM */
+#define CLK_PLL BIT(4) /* PLL-derived clock */
+#define PRE_PLL BIT(5) /* source is before PLL mult/div */
+
+struct davinci_clk {
+ struct clk_lookup lk;
+};
+
+#define CLK(dev, con, ck) \
+ { \
+ .lk = { \
+ .dev_id = dev, \
+ .con_id = con, \
+ .clk = ck, \
+ }, \
+ }
+int davinci_clk_init(struct davinci_clk *clocks);
#endif