/* Mailbox H/W preparations */
static int omap2_mbox_startup(struct omap_mbox *mbox)
{
u32 l;
unsigned long timeout;
if (!cpu_is_omap44xx()) {
mbox_ick_handle = clk_get(NULL, "mailboxes_ick");
if (IS_ERR(mbox_ick_handle)) {
printk(KERN_ERR "Could not get mailboxes_ick: %ld\n",
PTR_ERR(mbox_ick_handle));
return PTR_ERR(mbox_ick_handle);
}
clk_enable(mbox_ick_handle);
}
if (cpu_is_omap44xx()) {
mbox_write_reg(OMAP4_SOFTRESET, MAILBOX_SYSCONFIG);
timeout = jiffies + msecs_to_jiffies(20);
do {
l = mbox_read_reg(MAILBOX_SYSCONFIG);
if (!(l & OMAP4_SOFTRESET))
break;
} while (!time_after(jiffies, timeout));
if (l & OMAP4_SOFTRESET) {
pr_err("Can't take mailbox out of reset\n");
return -ENODEV;
}
} else {
mbox_write_reg(SOFTRESET, MAILBOX_SYSCONFIG);
timeout = jiffies + msecs_to_jiffies(20);
do {
l = mbox_read_reg(MAILBOX_SYSSTATUS);
if (l & RESETDONE)
break;
} while (!time_after(jiffies, timeout));
if (!(l & RESETDONE)) {
pr_err("Can't take mailbox out of reset\n");
return -ENODEV;
}
}
l = mbox_read_reg(MAILBOX_REVISION);
pr_info("omap mailbox rev %d.%d\n", (l & 0xf0) >> 4, (l & 0x0f));
if (cpu_is_omap44xx())
l = OMAP4_SMARTIDLE;
else
l = SMARTIDLE | AUTOIDLE;
mbox_write_reg(l, MAILBOX_SYSCONFIG);
omap2_mbox_enable_irq(mbox, IRQ_RX);
return 0;
}
/* Mailbox H/W preparations */
static int omap2_mbox_startup(struct omap_mbox *mbox)
{
u32 l;
pm_runtime_enable(mbox->dev->parent);
pm_runtime_get_sync(mbox->dev->parent);
l = mbox_read_reg(MAILBOX_REVISION);
pr_debug("omap mailbox rev %d.%d\n", (l & 0xf0) >> 4, (l & 0x0f));
omap2_mbox_enable_irq(mbox, IRQ_RX);
return 0;
}
/* Mailbox H/W preparations */
static int omap2_mbox_startup(struct omap_mbox *mbox)
{
unsigned int l;
mbox_ick_handle = clk_get(NULL, "mailboxes_ick");
if (IS_ERR(mbox_ick_handle)) {
printk("Could not get mailboxes_ick\n");
return -ENODEV;
}
clk_enable(mbox_ick_handle);
l = mbox_read_reg(MAILBOX_REVISION);
pr_info("omap mailbox rev %d.%d\n", (l & 0xf0) >> 4, (l & 0x0f));
/* set smart-idle & autoidle */
l = mbox_read_reg(MAILBOX_SYSCONFIG);
l |= 0x00000011;
mbox_write_reg(l, MAILBOX_SYSCONFIG);
omap2_mbox_enable_irq(mbox, IRQ_RX);
return 0;
}