omap mailbox: add initial omap3 support
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
diff --git a/arch/arm/mach-omap2/mailbox.c b/arch/arm/mach-omap2/mailbox.c
index 4487a4d..d925ef3 100644
--- a/arch/arm/mach-omap2/mailbox.c
+++ b/arch/arm/mach-omap2/mailbox.c
@@ -30,7 +30,7 @@
#define MAILBOX_IRQ_NEWMSG(u) (1 << (2 * (u)))
#define MAILBOX_IRQ_NOTFULL(u) (1 << (2 * (u) + 1))
-static unsigned long mbox_base;
+static void __iomem *mbox_base;
struct omap_mbox2_fifo {
unsigned long msg;
@@ -52,14 +52,14 @@
static void omap2_mbox_enable_irq(struct omap_mbox *mbox,
omap_mbox_type_t irq);
-static inline unsigned int mbox_read_reg(unsigned int reg)
+static inline unsigned int mbox_read_reg(size_t ofs)
{
- return __raw_readl(mbox_base + reg);
+ return __raw_readl(mbox_base + ofs);
}
-static inline void mbox_write_reg(unsigned int val, unsigned int reg)
+static inline void mbox_write_reg(u32 val, size_t ofs)
{
- __raw_writel(val, mbox_base + reg);
+ __raw_writel(val, mbox_base + ofs);
}
/* Mailbox H/W preparations */
@@ -208,7 +208,7 @@
};
EXPORT_SYMBOL(mbox_dsp_info);
-/* IVA */
+#if defined(CONFIG_ARCH_OMAP2420) /* IVA */
static struct omap_mbox2_priv omap2_mbox_iva_priv = {
.tx_fifo = {
.msg = MAILBOX_MESSAGE(2),
@@ -229,17 +229,12 @@
.ops = &omap2_mbox_ops,
.priv = &omap2_mbox_iva_priv,
};
+#endif
static int __init omap2_mbox_probe(struct platform_device *pdev)
{
struct resource *res;
- int ret = 0;
-
- if (pdev->num_resources != 3) {
- dev_err(&pdev->dev, "invalid number of resources: %d\n",
- pdev->num_resources);
- return -ENODEV;
- }
+ int ret;
/* MBOX base */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -247,34 +242,53 @@
dev_err(&pdev->dev, "invalid mem resource\n");
return -ENODEV;
}
- mbox_base = res->start;
+ mbox_base = ioremap(res->start, res->end - res->start);
+ if (!mbox_base)
+ return -ENOMEM;
- /* DSP IRQ */
- res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (unlikely(!res)) {
+ /* DSP or IVA2 IRQ */
+ mbox_dsp_info.irq = platform_get_irq(pdev, 0);
+ if (mbox_dsp_info.irq < 0) {
dev_err(&pdev->dev, "invalid irq resource\n");
- return -ENODEV;
+ ret = -ENODEV;
+ goto err_dsp;
}
- mbox_dsp_info.irq = res->start;
ret = omap_mbox_register(&mbox_dsp_info);
+ if (ret)
+ goto err_dsp;
- /* IVA IRQ */
- res = platform_get_resource(pdev, IORESOURCE_IRQ, 1);
- if (unlikely(!res)) {
- dev_err(&pdev->dev, "invalid irq resource\n");
- return -ENODEV;
+#if defined(CONFIG_ARCH_OMAP2420) /* IVA */
+ if (cpu_is_omap2420()) {
+ /* IVA IRQ */
+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 1);
+ if (unlikely(!res)) {
+ dev_err(&pdev->dev, "invalid irq resource\n");
+ ret = -ENODEV;
+ goto err_iva1;
+ }
+ mbox_iva_info.irq = res->start;
+ ret = omap_mbox_register(&mbox_iva_info);
+ if (ret)
+ goto err_iva1;
}
- mbox_iva_info.irq = res->start;
+#endif
+ return 0;
- ret = omap_mbox_register(&mbox_iva_info);
-
+err_iva1:
+ omap_mbox_unregister(&mbox_dsp_info);
+err_dsp:
+ iounmap(mbox_base);
return ret;
}
static int omap2_mbox_remove(struct platform_device *pdev)
{
+#if defined(CONFIG_ARCH_OMAP2420)
+ omap_mbox_unregister(&mbox_iva_info);
+#endif
omap_mbox_unregister(&mbox_dsp_info);
+ iounmap(mbox_base);
return 0;
}