diff options
| -rw-r--r-- | Documentation/DocBook/sh.tmpl | 4 | ||||
| -rw-r--r-- | Documentation/sh/clk.txt | 32 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/clock-sh7372.c | 6 | ||||
| -rw-r--r-- | arch/sh/include/asm/processor_32.h | 7 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh4/clock-sh4-202.c | 2 | ||||
| -rw-r--r-- | arch/sh/kernel/sys_sh.c | 2 | ||||
| -rw-r--r-- | arch/sh/kernel/vsyscall/vsyscall-trapa.S | 2 | ||||
| -rw-r--r-- | drivers/sh/clk/core.c | 16 | ||||
| -rw-r--r-- | drivers/sh/clk/cpg.c | 7 | ||||
| -rw-r--r-- | include/linux/sh_clk.h | 34 |
10 files changed, 22 insertions, 90 deletions
diff --git a/Documentation/DocBook/sh.tmpl b/Documentation/DocBook/sh.tmpl index d858d92cf6d..4a38f604fa6 100644 --- a/Documentation/DocBook/sh.tmpl +++ b/Documentation/DocBook/sh.tmpl @@ -79,10 +79,6 @@ </sect2> </sect1> </chapter> - <chapter id="clk"> - <title>Clock Framework Extensions</title> -!Iinclude/linux/sh_clk.h - </chapter> <chapter id="mach"> <title>Machine Specific Interfaces</title> <sect1 id="dreamcast"> diff --git a/Documentation/sh/clk.txt b/Documentation/sh/clk.txt deleted file mode 100644 index 114b595cfa9..00000000000 --- a/Documentation/sh/clk.txt +++ /dev/null @@ -1,32 +0,0 @@ -Clock framework on SuperH architecture - -The framework on SH extends existing API by the function clk_set_rate_ex, -which prototype is as follows: - - clk_set_rate_ex (struct clk *clk, unsigned long rate, int algo_id) - -The algo_id parameter is used to specify algorithm used to recalculate clocks, -adjanced to clock, specified as first argument. It is assumed that algo_id==0 -means no changes to adjanced clock - -Internally, the clk_set_rate_ex forwards request to clk->ops->set_rate method, -if it is present in ops structure. The method should set the clock rate and adjust -all needed clocks according to the passed algo_id. -Exact values for algo_id are machine-dependent. For the sh7722, the following -values are defined: - - NO_CHANGE = 0, - IUS_N1_N1, /* I:U = N:1, U:Sh = N:1 */ - IUS_322, /* I:U:Sh = 3:2:2 */ - IUS_522, /* I:U:Sh = 5:2:2 */ - IUS_N11, /* I:U:Sh = N:1:1 */ - SB_N1, /* Sh:B = N:1 */ - SB3_N1, /* Sh:B3 = N:1 */ - SB3_32, /* Sh:B3 = 3:2 */ - SB3_43, /* Sh:B3 = 4:3 */ - SB3_54, /* Sh:B3 = 5:4 */ - BP_N1, /* B:P = N:1 */ - IP_N1 /* I:P = N:1 */ - -Each of these constants means relation between clocks that can be set via the FRQCR -register diff --git a/arch/arm/mach-shmobile/clock-sh7372.c b/arch/arm/mach-shmobile/clock-sh7372.c index 7db31e6c6bf..b25ce90a346 100644 --- a/arch/arm/mach-shmobile/clock-sh7372.c +++ b/arch/arm/mach-shmobile/clock-sh7372.c @@ -220,8 +220,7 @@ static void pllc2_disable(struct clk *clk) __raw_writel(__raw_readl(PLLC2CR) & ~0x80000000, PLLC2CR); } -static int pllc2_set_rate(struct clk *clk, - unsigned long rate, int algo_id) +static int pllc2_set_rate(struct clk *clk, unsigned long rate) { unsigned long value; int idx; @@ -463,8 +462,7 @@ static int fsidiv_enable(struct clk *clk) return 0; } -static int fsidiv_set_rate(struct clk *clk, - unsigned long rate, int algo_id) +static int fsidiv_set_rate(struct clk *clk, unsigned long rate) { int idx; diff --git a/arch/sh/include/asm/processor_32.h b/arch/sh/include/asm/processor_32.h index 46d5179c9f4..e3c73cdd8c9 100644 --- a/arch/sh/include/asm/processor_32.h +++ b/arch/sh/include/asm/processor_32.h @@ -199,10 +199,13 @@ extern unsigned long get_wchan(struct task_struct *p); #define ARCH_HAS_PREFETCHW static inline void prefetch(void *x) { - __asm__ __volatile__ ("pref @%0\n\t" : : "r" (x) : "memory"); + __builtin_prefetch(x, 0, 3); } -#define prefetchw(x) prefetch(x) +static inline void prefetchw(void *x) +{ + __builtin_prefetch(x, 1, 3); +} #endif #endif /* __KERNEL__ */ diff --git a/arch/sh/kernel/cpu/sh4/clock-sh4-202.c b/arch/sh/kernel/cpu/sh4/clock-sh4-202.c index 4eabc68cd75..b601fa3978d 100644 --- a/arch/sh/kernel/cpu/sh4/clock-sh4-202.c +++ b/arch/sh/kernel/cpu/sh4/clock-sh4-202.c @@ -110,7 +110,7 @@ static int shoc_clk_verify_rate(struct clk *clk, unsigned long rate) return 0; } -static int shoc_clk_set_rate(struct clk *clk, unsigned long rate, int algo_id) +static int shoc_clk_set_rate(struct clk *clk, unsigned long rate) { unsigned long frqcr3; unsigned int tmp; diff --git a/arch/sh/kernel/sys_sh.c b/arch/sh/kernel/sys_sh.c index 81f58371613..8c6a350df75 100644 --- a/arch/sh/kernel/sys_sh.c +++ b/arch/sh/kernel/sys_sh.c @@ -88,7 +88,7 @@ asmlinkage int sys_cacheflush(unsigned long addr, unsigned long len, int op) } if (op & CACHEFLUSH_I) - flush_cache_all(); + flush_icache_range(addr, addr+len); up_read(¤t->mm->mmap_sem); return 0; diff --git a/arch/sh/kernel/vsyscall/vsyscall-trapa.S b/arch/sh/kernel/vsyscall/vsyscall-trapa.S index 3b6eb34c43f..3e70f851cdc 100644 --- a/arch/sh/kernel/vsyscall/vsyscall-trapa.S +++ b/arch/sh/kernel/vsyscall/vsyscall-trapa.S @@ -8,9 +8,9 @@ __kernel_vsyscall: * fill out .eh_frame -- PFM. */ .LEND_vsyscall: .size __kernel_vsyscall,.-.LSTART_vsyscall - .previous .section .eh_frame,"a",@progbits + .previous .LCIE: .ualong .LCIE_end - .LCIE_start .LCIE_start: diff --git a/drivers/sh/clk/core.c b/drivers/sh/clk/core.c index cb12a8e1466..3f5e387ed56 100644 --- a/drivers/sh/clk/core.c +++ b/drivers/sh/clk/core.c @@ -418,8 +418,11 @@ int clk_register(struct clk *clk) list_add(&clk->sibling, &root_clks); list_add(&clk->node, &clock_list); + +#ifdef CONFIG_SH_CLK_CPG_LEGACY if (clk->ops && clk->ops->init) clk->ops->init(clk); +#endif out_unlock: mutex_unlock(&clock_list_sem); @@ -455,19 +458,13 @@ EXPORT_SYMBOL_GPL(clk_get_rate); int clk_set_rate(struct clk *clk, unsigned long rate) { - return clk_set_rate_ex(clk, rate, 0); -} -EXPORT_SYMBOL_GPL(clk_set_rate); - -int clk_set_rate_ex(struct clk *clk, unsigned long rate, int algo_id) -{ int ret = -EOPNOTSUPP; unsigned long flags; spin_lock_irqsave(&clock_lock, flags); if (likely(clk->ops && clk->ops->set_rate)) { - ret = clk->ops->set_rate(clk, rate, algo_id); + ret = clk->ops->set_rate(clk, rate); if (ret != 0) goto out_unlock; } else { @@ -485,7 +482,7 @@ out_unlock: return ret; } -EXPORT_SYMBOL_GPL(clk_set_rate_ex); +EXPORT_SYMBOL_GPL(clk_set_rate); int clk_set_parent(struct clk *clk, struct clk *parent) { @@ -653,8 +650,7 @@ static int clks_sysdev_suspend(struct sys_device *dev, pm_message_t state) clkp->ops->set_parent(clkp, clkp->parent); if (likely(clkp->ops->set_rate)) - clkp->ops->set_rate(clkp, - rate, NO_CHANGE); + clkp->ops->set_rate(clkp, rate); else if (likely(clkp->ops->recalc)) clkp->rate = clkp->ops->recalc(clkp); } diff --git a/drivers/sh/clk/cpg.c b/drivers/sh/clk/cpg.c index 3aea5f0ceb0..6172335ae32 100644 --- a/drivers/sh/clk/cpg.c +++ b/drivers/sh/clk/cpg.c @@ -110,8 +110,7 @@ static int sh_clk_div6_set_parent(struct clk *clk, struct clk *parent) return 0; } -static int sh_clk_div6_set_rate(struct clk *clk, - unsigned long rate, int algo_id) +static int sh_clk_div6_set_rate(struct clk *clk, unsigned long rate) { unsigned long value; int idx; @@ -132,7 +131,7 @@ static int sh_clk_div6_enable(struct clk *clk) unsigned long value; int ret; - ret = sh_clk_div6_set_rate(clk, clk->rate, 0); + ret = sh_clk_div6_set_rate(clk, clk->rate); if (ret == 0) { value = __raw_readl(clk->enable_reg); value &= ~0x100; /* clear stop bit to enable clock */ @@ -253,7 +252,7 @@ static int sh_clk_div4_set_parent(struct clk *clk, struct clk *parent) return 0; } -static int sh_clk_div4_set_rate(struct clk *clk, unsigned long rate, int algo_id) +static int sh_clk_div4_set_rate(struct clk *clk, unsigned long rate) { struct clk_div4_table *d4t = clk->priv; unsigned long value; diff --git a/include/linux/sh_clk.h b/include/linux/sh_clk.h index cea0c38e7a6..9a52f72527d 100644 --- a/include/linux/sh_clk.h +++ b/include/linux/sh_clk.h @@ -19,11 +19,13 @@ struct clk_mapping { }; struct clk_ops { +#ifdef CONFIG_SH_CLK_CPG_LEGACY void (*init)(struct clk *clk); +#endif int (*enable)(struct clk *clk); void (*disable)(struct clk *clk); unsigned long (*recalc)(struct clk *clk); - int (*set_rate)(struct clk *clk, unsigned long rate, int algo_id); + int (*set_rate)(struct clk *clk, unsigned long rate); int (*set_parent)(struct clk *clk, struct clk *parent); long (*round_rate)(struct clk *clk, unsigned long rate); }; @@ -67,36 +69,6 @@ int clk_register(struct clk *); void clk_unregister(struct clk *); void clk_enable_init_clocks(void); -/** - * clk_set_rate_ex - set the clock rate for a clock source, with additional parameter - * @clk: clock source - * @rate: desired clock rate in Hz - * @algo_id: algorithm id to be passed down to ops->set_rate - * - * Returns success (0) or negative errno. - */ -int clk_set_rate_ex(struct clk *clk, unsigned long rate, int algo_id); - -enum clk_sh_algo_id { - NO_CHANGE = 0, - - IUS_N1_N1, - IUS_322, - IUS_522, - IUS_N11, - - SB_N1, - - SB3_N1, - SB3_32, - SB3_43, - SB3_54, - - BP_N1, - - IP_N1, -}; - struct clk_div_mult_table { unsigned int *divisors; unsigned int nr_divisors; |