* All initialization functions provided here are intended to be called
* from machine specific code with proper arguments when required.
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/dma-mapping.h>
+#include <linux/clk.h>
#include <asm/hardware.h>
#include <asm/mach-types.h>
#include <asm/hardware/sa1111.h>
-#ifdef CONFIG_ARCH_PXA
-#include <asm/arch/pxa-regs.h>
-#endif
-
extern void __init sa1110_mb_enable(void);
/*
*/
struct sa1111 {
struct device *dev;
+ struct clk *clk;
unsigned long phys;
int irq;
spinlock_t lock;
sa1111_irq_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
{
unsigned int stat0, stat1, i;
- void __iomem *base = desc->data;
+ void __iomem *base = get_irq_data(irq);
stat0 = sa1111_readl(base + SA1111_INTSTATCLR0);
stat1 = sa1111_readl(base + SA1111_INTSTATCLR1);
for (i = IRQ_SA1111_START; stat0; i++, stat0 >>= 1)
if (stat0 & 1)
- do_edge_IRQ(i, irq_desc + i, regs);
+ handle_edge_irq(i, irq_desc + i, regs);
for (i = IRQ_SA1111_START + 32; stat1; i++, stat1 >>= 1)
if (stat1 & 1)
- do_edge_IRQ(i, irq_desc + i, regs);
+ handle_edge_irq(i, irq_desc + i, regs);
/* For level-based interrupts */
desc->chip->unmask(irq);
return 0;
}
-static struct irqchip sa1111_low_chip = {
+static struct irq_chip sa1111_low_chip = {
+ .name = "SA1111-l",
.ack = sa1111_ack_irq,
.mask = sa1111_mask_lowirq,
.unmask = sa1111_unmask_lowirq,
return 0;
}
-static struct irqchip sa1111_high_chip = {
+static struct irq_chip sa1111_high_chip = {
+ .name = "SA1111-h",
.ack = sa1111_ack_irq,
.mask = sa1111_mask_highirq,
.unmask = sa1111_unmask_highirq,
spin_lock_irqsave(&sachip->lock, flags);
-#ifdef CONFIG_ARCH_SA1100
- /*
- * First, set up the 3.6864MHz clock on GPIO 27 for the SA-1111:
- * (SA-1110 Developer's Manual, section 9.1.2.1)
- */
- GAFR |= GPIO_32_768kHz;
- GPDR |= GPIO_32_768kHz;
- TUCR = TUCR_3_6864MHz;
-#elif CONFIG_ARCH_PXA
- pxa_gpio_mode(GPIO11_3_6MHz_MD);
-#else
-#error missing clock setup
-#endif
+ clk_enable(sachip->clk);
/*
* Turn VCO on, and disable PLL Bypass.
struct sa1111_dev *dev;
int ret;
- dev = kmalloc(sizeof(struct sa1111_dev), GFP_KERNEL);
+ dev = kzalloc(sizeof(struct sa1111_dev), GFP_KERNEL);
if (!dev) {
ret = -ENOMEM;
goto out;
}
- memset(dev, 0, sizeof(struct sa1111_dev));
snprintf(dev->dev.bus_id, sizeof(dev->dev.bus_id),
"%4.4lx", info->offset);
{
struct sa1111 *sachip;
unsigned long id;
- unsigned int has_devs, val;
+ unsigned int has_devs;
int i, ret = -ENODEV;
- sachip = kmalloc(sizeof(struct sa1111), GFP_KERNEL);
+ sachip = kzalloc(sizeof(struct sa1111), GFP_KERNEL);
if (!sachip)
return -ENOMEM;
- memset(sachip, 0, sizeof(struct sa1111));
+ sachip->clk = clk_get(me, "GPIO27_CLK");
+ if (!sachip->clk) {
+ ret = PTR_ERR(sachip->clk);
+ goto err_free;
+ }
spin_lock_init(&sachip->lock);
sachip->base = ioremap(mem->start, PAGE_SIZE * 2);
if (!sachip->base) {
ret = -ENOMEM;
- goto out;
+ goto err_clkput;
}
/*
if ((id & SKID_ID_MASK) != SKID_SA1111_ID) {
printk(KERN_DEBUG "SA1111 not detected: ID = %08lx\n", id);
ret = -ENODEV;
- goto unmap;
+ goto err_unmap;
}
printk(KERN_INFO "SA1111 Microprocessor Companion Chip: "
sa1111_wake(sachip);
#ifdef CONFIG_ARCH_SA1100
+ {
+ unsigned int val;
+
/*
* The SDRAM configuration of the SA1110 and the SA1111 must
* match. This is very important to ensure that SA1111 accesses
* Enable the SA1110 memory bus request and grant signals.
*/
sa1110_mb_enable();
+ }
#endif
/*
return 0;
- unmap:
+ err_unmap:
iounmap(sachip->base);
- out:
+ err_clkput:
+ clk_put(sachip->clk);
+ err_free:
kfree(sachip);
return ret;
}
sa1111_writel(0, irqbase + SA1111_WAKEEN0);
sa1111_writel(0, irqbase + SA1111_WAKEEN1);
+ clk_disable(sachip->clk);
+
if (sachip->irq != NO_IRQ) {
set_irq_chained_handler(sachip->irq, NULL);
set_irq_data(sachip->irq, NULL);
}
iounmap(sachip->base);
+ clk_put(sachip->clk);
kfree(sachip);
}
sa1111_writel(0, sachip->base + SA1111_SKPWM0);
sa1111_writel(0, sachip->base + SA1111_SKPWM1);
+ clk_disable(sachip->clk);
+
spin_unlock_irqrestore(&sachip->lock, flags);
return 0;
if (!mem)
return -EINVAL;
irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return -ENXIO;
return __sa1111_probe(&pdev->dev, mem, irq);
}