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

ARM: S3C64XX: Bypass legacy initialization when booting with DT

Browse Source 
This patch allows bypassing most of legacy initialization when booting
an S3C64xx-based board using device tree, by adding conditional checks
for DT presence to initcalls which are no longer necessary when booting
with DT..

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Tomasz Figa
2013-08-26 02:37:34 +09:00
committed by Kukjin Kim
parent 81e9c1794f
commit c836c90e27
6 changed files with 59 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
arch/arm/plat-samsung/init.c
View File

@@ -11,12 +11,18 @@
* published by the Free Software Foundation.
*/
/*
* NOTE: Code in this file is not used on S3C64xx when booting with
* Device Tree support.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/serial_core.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <mach/hardware.h>
@@ -148,8 +154,12 @@ static int __init s3c_arch_init(void)
// do the correct init for cpu
if (cpu == NULL)
if (cpu == NULL) {
/* Not needed when booting with device tree. */
if (of_have_populated_dt())
return 0;
panic("s3c_arch_init: NULL cpu\n");
}
ret = (cpu->init)();
if (ret != 0)