| /* |
| * Low level clock header file for Telechips TCC architecture |
| * (C) 2010 Hans J. Koch <hjk@linutronix.de> |
| * |
| * Licensed under the GPL v2. |
| */ |
| |
| #ifndef __ASM_ARCH_TCC_CLOCK_H__ |
| #define __ASM_ARCH_TCC_CLOCK_H__ |
| |
| #ifndef __ASSEMBLY__ |
| |
| struct clk { |
| struct clk *parent; |
| /* id number of a root clock, 0 for normal clocks */ |
| int root_id; |
| /* Reference count of clock enable/disable */ |
| int refcount; |
| /* Address of associated BCLKCTRx register. Must be set. */ |
| void __iomem *bclkctr; |
| /* Bit position for BCLKCTRx. Must be set. */ |
| int bclk_shift; |
| /* Address of ACLKxxx register, if any. */ |
| void __iomem *aclkreg; |
| /* get the current clock rate (always a fresh value) */ |
| unsigned long (*get_rate) (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 *); |
| }; |
| |
| int clk_register(struct clk *clk); |
| void clk_unregister(struct clk *clk); |
| |
| #endif /* __ASSEMBLY__ */ |
| #endif /* __ASM_ARCH_MXC_CLOCK_H__ */ |
