clocksource: pass clocksource to read() callback
[linux-2.6.git] / arch / arm / mach-versatile / core.c
index b638f10..1f929c3 100644 (file)
 #include <linux/clocksource.h>
 #include <linux/clockchips.h>
 #include <linux/cnt32_to_63.h>
+#include <linux/io.h>
 
+#include <asm/clkdev.h>
 #include <asm/system.h>
 #include <mach/hardware.h>
-#include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/leds.h>
 #include <asm/hardware/arm_timer.h>
@@ -95,8 +96,7 @@ sic_handle_irq(unsigned int irq, struct irq_desc *desc)
 
                irq += IRQ_SIC_START;
 
-               desc = irq_desc + irq;
-               desc_handle_irq(irq, desc);
+               generic_handle_irq(irq);
        } while (status);
 }
 
@@ -335,11 +335,25 @@ static struct resource versatile_i2c_resource = {
 
 static struct platform_device versatile_i2c_device = {
        .name                   = "versatile-i2c",
-       .id                     = -1,
+       .id                     = 0,
        .num_resources          = 1,
        .resource               = &versatile_i2c_resource,
 };
 
+static struct i2c_board_info versatile_i2c_board_info[] = {
+       {
+               I2C_BOARD_INFO("rtc-ds1307", 0xd0 >> 1),
+               .type = "ds1338",
+       },
+};
+
+static int __init versatile_i2c_init(void)
+{
+       return i2c_register_board_info(0, versatile_i2c_board_info,
+                                      ARRAY_SIZE(versatile_i2c_board_info));
+}
+arch_initcall(versatile_i2c_init);
+
 #define VERSATILE_SYSMCI       (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_MCI_OFFSET)
 
 unsigned int mmc_status(struct device *dev)
@@ -374,22 +388,60 @@ static const struct icst307_params versatile_oscvco_params = {
 
 static void versatile_oscvco_set(struct clk *clk, struct icst307_vco vco)
 {
-       void __iomem *sys_lock = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_LOCK_OFFSET;
-       void __iomem *sys_osc = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_OSCCLCD_OFFSET;
+       void __iomem *sys = __io_address(VERSATILE_SYS_BASE);
+       void __iomem *sys_lock = sys + VERSATILE_SYS_LOCK_OFFSET;
        u32 val;
 
-       val = readl(sys_osc) & ~0x7ffff;
+       val = readl(sys + clk->oscoff) & ~0x7ffff;
        val |= vco.v | (vco.r << 9) | (vco.s << 16);
 
        writel(0xa05f, sys_lock);
-       writel(val, sys_osc);
+       writel(val, sys + clk->oscoff);
        writel(0, sys_lock);
 }
 
-static struct clk versatile_clcd_clk = {
-       .name   = "CLCDCLK",
+static struct clk osc4_clk = {
        .params = &versatile_oscvco_params,
-       .setvco = versatile_oscvco_set,
+       .oscoff = VERSATILE_SYS_OSCCLCD_OFFSET,
+       .setvco = versatile_oscvco_set,
+};
+
+/*
+ * These are fixed clocks.
+ */
+static struct clk ref24_clk = {
+       .rate   = 24000000,
+};
+
+static struct clk_lookup lookups[] __initdata = {
+       {       /* UART0 */
+               .dev_id         = "dev:f1",
+               .clk            = &ref24_clk,
+       }, {    /* UART1 */
+               .dev_id         = "dev:f2",
+               .clk            = &ref24_clk,
+       }, {    /* UART2 */
+               .dev_id         = "dev:f3",
+               .clk            = &ref24_clk,
+       }, {    /* UART3 */
+               .dev_id         = "fpga:09",
+               .clk            = &ref24_clk,
+       }, {    /* KMI0 */
+               .dev_id         = "fpga:06",
+               .clk            = &ref24_clk,
+       }, {    /* KMI1 */
+               .dev_id         = "fpga:07",
+               .clk            = &ref24_clk,
+       }, {    /* MMC0 */
+               .dev_id         = "fpga:05",
+               .clk            = &ref24_clk,
+       }, {    /* MMC1 */
+               .dev_id         = "fpga:0b",
+               .clk            = &ref24_clk,
+       }, {    /* CLCD */
+               .dev_id         = "dev:20",
+               .clk            = &osc4_clk,
+       }
 };
 
 /*
@@ -787,7 +839,8 @@ void __init versatile_init(void)
 {
        int i;
 
-       clk_register(&versatile_clcd_clk);
+       for (i = 0; i < ARRAY_SIZE(lookups); i++)
+               clkdev_add(&lookups[i]);
 
        platform_device_register(&versatile_flash_device);
        platform_device_register(&versatile_i2c_device);
@@ -895,7 +948,7 @@ static struct irqaction versatile_timer_irq = {
        .handler        = versatile_timer_interrupt,
 };
 
-static cycle_t versatile_get_cycles(void)
+static cycle_t versatile_get_cycles(struct clocksource *cs)
 {
        return ~readl(TIMER3_VA_BASE + TIMER_VALUE);
 }
@@ -966,7 +1019,7 @@ static void __init versatile_timer_init(void)
        timer0_clockevent.min_delta_ns =
                clockevent_delta2ns(0xf, &timer0_clockevent);
 
-       timer0_clockevent.cpumask = cpumask_of_cpu(0);
+       timer0_clockevent.cpumask = cpumask_of(0);
        clockevents_register_device(&timer0_clockevent);
 }