xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ARM: davinci: cp_intc: Add OF support for TI interrupt controller

Browse Source 
Add a function to initialize the Common Platform Interrupt Controller
(cp_intc) from TI used on OMAP-L1x SoCs using a device tree node.

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: davinci-linux-open-source@linux.davincidsp.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree-discuss@lists.ozlabs.org
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Sergei Shtylyov <sshtylyov@mvista.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
This commit is contained in:
Heiko Schocher
2012-05-30 12:18:58 +02:00
committed by Sekhar Nori
parent ce9dcb8784
commit 961e657f5a
3 changed files with 41 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
arch/arm/mach-davinci/cp_intc.c
View File

@@ -14,6 +14,9 @@
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <mach/common.h>
#include <mach/cp_intc.h>
@@ -119,7 +122,7 @@ static const struct irq_domain_ops cp_intc_host_ops = {
.xlate = irq_domain_xlate_onetwocell,
};
int __init __cp_intc_init(struct device_node *node)
int __init cp_intc_of_init(struct device_node *node, struct device_node *parent)
{
u32 num_irq = davinci_soc_info.intc_irq_num;
u8 *irq_prio = davinci_soc_info.intc_irq_prios;
@@ -128,7 +131,14 @@ int __init __cp_intc_init(struct device_node *node)
int i, irq_base;
davinci_intc_type = DAVINCI_INTC_TYPE_CP_INTC;
davinci_intc_base = ioremap(davinci_soc_info.intc_base, SZ_8K);
if (node) {
davinci_intc_base = of_iomap(node, 0);
if (of_property_read_u32(node, "ti,intc-size", &num_irq))
pr_warn("unable to get intc-size, default to %d\n",
num_irq);
} else {
davinci_intc_base = ioremap(davinci_soc_info.intc_base, SZ_8K);
}
if (WARN_ON(!davinci_intc_base))
return -EINVAL;
@@ -208,5 +218,5 @@ int __init __cp_intc_init(struct device_node *node)
void __init cp_intc_init(void)
{
__cp_intc_init(NULL);
cp_intc_of_init(NULL, NULL);
}