TX6 Release 2013-04-22

[karo-tx-uboot.git] / arch / arm / include / asm / arch-mx5 / clock.h

diff --git a/arch/arm/include/asm/arch-mx5/clock.h b/arch/arm/include/asm/arch-mx5/clock.h
index 35ee8155de90faf251e9e67aaa2967f6b7855d47..6f676f2160306c19d0a05d7e6b86b366c8590183 100644 (file)
--- a/arch/arm/include/asm/arch-mx5/clock.h
+++ b/arch/arm/include/asm/arch-mx5/clock.h
@@ -24,6 +24,20 @@
 #ifndef __ASM_ARCH_CLOCK_H
 #define __ASM_ARCH_CLOCK_H
 
+#include <common.h>
+
+#ifdef CONFIG_SYS_MX5_HCLK
+#define MXC_HCLK       CONFIG_SYS_MX5_HCLK
+#else
+#define MXC_HCLK       24000000
+#endif
+
+#ifdef CONFIG_SYS_MX5_CLK32
+#define MXC_CLK32      CONFIG_SYS_MX5_CLK32
+#else
+#define MXC_CLK32      32768
+#endif
+
 enum mxc_clock {
        MXC_ARM_CLK = 0,
        MXC_AHB_CLK,
@@ -31,23 +45,77 @@ enum mxc_clock {
        MXC_IPG_PERCLK,
        MXC_UART_CLK,
        MXC_CSPI_CLK,
+       MXC_ESDHC_CLK,
+       MXC_ESDHC2_CLK,
+       MXC_ESDHC3_CLK,
+       MXC_ESDHC4_CLK,
        MXC_FEC_CLK,
        MXC_SATA_CLK,
        MXC_DDR_CLK,
        MXC_NFC_CLK,
        MXC_PERIPH_CLK,
+       MXC_I2C_CLK,
 };
 
-unsigned int imx_decode_pll(unsigned int pll, unsigned int f_ref);
+
+struct clk {
+       const char *name;
+       int id;
+       /* Source clock this clk depends on */
+       struct clk *parent;
+       /* Secondary clock to enable/disable with this clock */
+       struct clk *secondary;
+       /* Current clock rate */
+       unsigned long rate;
+       /* Reference count of clock enable/disable */
+       __s8 usecount;
+       /* Register bit position for clock's enable/disable control. */
+       u8 enable_shift;
+       /* Register address for clock's enable/disable control. */
+       void *enable_reg;
+       u32 flags;
+       /*
+        * Function ptr to recalculate the clock's rate based on parent
+        * clock's rate
+        */
+       void (*recalc) (struct clk *);
+       /*
+        * Function ptr to set the clock to a new rate. The rate must match a
+        * supported rate returned from round_rate. Leave blank if clock is not
+       * programmable
+        */
+       int (*set_rate) (struct clk *, unsigned long);
+       /*
+        * Function ptr to round the requested clock rate to the nearest
+        * supported rate that is less than or equal to the requested rate.
+        */
+       unsigned long (*round_rate) (struct clk *, unsigned long);
+       /*
+        * Function ptr to enable the clock. Leave blank if clock can not
+        * be gated.
+        */
+       int (*enable) (struct clk *);
+       /*
+        * Function ptr to disable the clock. Leave blank if clock can not
+        * be gated.
+        */
+       void (*disable) (struct clk *);
+       /* Function ptr to set the parent clock of the clock. */
+       int (*set_parent) (struct clk *, struct clk *);
+};
 
 u32 imx_get_uartclk(void);
 u32 imx_get_fecclk(void);
 unsigned int mxc_get_clock(enum mxc_clock clk);
-int mxc_set_clock(u32 ref, u32 freq, u32 clk_type);
-void set_usb_phy2_clk(void);
+int mxc_set_clock(u32 ref, u32 freq, enum mxc_clock clk);
+void set_usb_phy_clk(void);
+void enable_usb_phy1_clk(unsigned char enable);
 void enable_usb_phy2_clk(unsigned char enable);
 void set_usboh3_clk(void);
 void enable_usboh3_clk(unsigned char enable);
 void mxc_set_sata_internal_clock(void);
+int enable_i2c_clk(unsigned char enable, unsigned i2c_num);
+void ipu_clk_enable(void);
+void ipu_clk_disable(void);
 
 #endif /* __ASM_ARCH_CLOCK_H */