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