Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm

[sfrench/cifs-2.6.git] / arch / arm / mach-at91 / clock.c

diff --git a/arch/arm/mach-at91rm9200/clock.c b/arch/arm/mach-at91/clock.c
similarity index 94%
rename from arch/arm/mach-at91rm9200/clock.c
rename to arch/arm/mach-at91/clock.c
index 36a8e4d1cc6ddd3813786cfec9ff4494627ac5db..06c9a0507d0d8316137507979a62d631f2861769 100644 (file)
--- a/arch/arm/mach-at91rm9200/clock.c
+++ b/arch/arm/mach-at91/clock.c
@@ -1,5 +1,5 @@
 /*
- * linux/arch/arm/mach-at91rm9200/clock.c
+ * linux/arch/arm/mach-at91/clock.c
  *
  * Copyright (C) 2005 David Brownell
  * Copyright (C) 2005 Ivan Kokshaysky
@@ -525,27 +525,6 @@ fail:
        return 0;
 }
 
-/*
- * Several unused clocks may be active.  Turn them off.
- */
-static void __init at91_periphclk_reset(void)
-{
-       unsigned long reg;
-       struct clk *clk;
-
-       reg = at91_sys_read(AT91_PMC_PCSR);
-
-       list_for_each_entry(clk, &clocks, node) {
-               if (clk->mode != pmc_periph_mode)
-                       continue;
-
-               if (clk->users > 0)
-                       reg &= ~clk->pmc_mask;
-       }
-
-       at91_sys_write(AT91_PMC_PCDR, reg);
-}
-
 static struct clk *const standard_pmc_clocks[] __initdata = {
        /* four primary clocks */
        &clk32k,
@@ -586,7 +565,7 @@ int __init at91_clock_init(unsigned long main_clock)
                pr_info("Clocks: PLLA overclocked, %ld MHz\n", plla.rate_hz / 1000000);
 
        /*
-        * USB clock init:  choose 48 MHz PLLB value, turn all clocks off,
+        * USB clock init:  choose 48 MHz PLLB value,
         * disable 48MHz clock during usb peripheral suspend.
         *
         * REVISIT:  assumes MCK doesn't derive from PLLB!
@@ -596,16 +575,10 @@ int __init at91_clock_init(unsigned long main_clock)
        if (cpu_is_at91rm9200()) {
                uhpck.pmc_mask = AT91RM9200_PMC_UHP;
                udpck.pmc_mask = AT91RM9200_PMC_UDP;
-               at91_sys_write(AT91_PMC_SCDR, AT91RM9200_PMC_UHP | AT91RM9200_PMC_UDP);
                at91_sys_write(AT91_PMC_SCER, AT91RM9200_PMC_MCKUDP);
-       } else if (cpu_is_at91sam9260()) {
+       } else if (cpu_is_at91sam9260() || cpu_is_at91sam9261() || cpu_is_at91sam9263()) {
                uhpck.pmc_mask = AT91SAM926x_PMC_UHP;
                udpck.pmc_mask = AT91SAM926x_PMC_UDP;
-               at91_sys_write(AT91_PMC_SCDR, AT91SAM926x_PMC_UHP | AT91SAM926x_PMC_UDP);
-       } else if (cpu_is_at91sam9261()) {
-               uhpck.pmc_mask = (AT91SAM926x_PMC_UHP | AT91_PMC_HCK0);
-               udpck.pmc_mask = AT91SAM926x_PMC_UDP;
-               at91_sys_write(AT91_PMC_SCDR, AT91SAM926x_PMC_UHP | AT91_PMC_HCK0 | AT91SAM926x_PMC_UDP);
        }
        at91_sys_write(AT91_CKGR_PLLBR, 0);
 
@@ -634,11 +607,34 @@ int __init at91_clock_init(unsigned long main_clock)
                (unsigned) main_clock / 1000000,
                ((unsigned) main_clock % 1000000) / 1000);
 
-       /* disable all programmable clocks */
-       at91_sys_write(AT91_PMC_SCDR, AT91_PMC_PCK0 | AT91_PMC_PCK1 | AT91_PMC_PCK2 | AT91_PMC_PCK3);
+       return 0;
+}
+
+/*
+ * Several unused clocks may be active.  Turn them off.
+ */
+static int __init at91_clock_reset(void)
+{
+       unsigned long pcdr = 0;
+       unsigned long scdr = 0;
+       struct clk *clk;
+
+       list_for_each_entry(clk, &clocks, node) {
+               if (clk->users > 0)
+                       continue;
+
+               if (clk->mode == pmc_periph_mode)
+                       pcdr |= clk->pmc_mask;
+
+               if (clk->mode == pmc_sys_mode)
+                       scdr |= clk->pmc_mask;
+
+               pr_debug("Clocks: disable unused %s\n", clk->name);
+       }
 
-       /* disable all other unused peripheral clocks */
-       at91_periphclk_reset();
+       at91_sys_write(AT91_PMC_PCDR, pcdr);
+       at91_sys_write(AT91_PMC_SCDR, scdr);
 
        return 0;
 }
+late_initcall(at91_clock_reset);