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From 8129fa5437f3fe5f95bac180a43cd5a856cebdf3 Mon Sep 17 00:00:00 2001
From: Daniel Hellstrom <daniel@gaisler.com>
Date: Wed, 20 Oct 2010 17:00:41 +0200
Subject: [PATCH] Added support for ampopts in APBUART driver. Used in AMP systems.
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
---
drivers/serial/apbuart.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
--- a/drivers/serial/apbuart.c
+++ b/drivers/serial/apbuart.c
@@ -26,6 +26,7 @@
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_platform.h>
+#include <linux/of_irq.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/serial_core.h>
@@ -573,7 +574,6 @@ static int __devinit apbuart_probe(struc
printk(KERN_INFO "grlib-apbuart at 0x%llx, irq %d\n",
(unsigned long long) port->mapbase, port->irq);
return 0;
-
}
static struct of_device_id __initdata apbuart_match[] = {
@@ -620,9 +620,12 @@ static void grlib_apbuart_configure(void
int *vendor = (int *) of_get_property(np, "vendor", NULL);
int *device = (int *) of_get_property(np, "device", NULL);
int *irqs = (int *) of_get_property(np, "interrupts", NULL);
+ int *ampopts = (int *) of_get_property(np, "ampopts", NULL);
regs = (struct amba_prom_registers *)
of_get_property(np, "reg", NULL);
+ if (ampopts && (*ampopts == 0))
+ continue; /* Ignore if used by another OS instance */
if (vendor)
v = *vendor;
if (device)
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