android/android_kernel_cmhtcleo
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cLK: kernel patch to save reboot reason so is available on bootloader

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By Cedesmith. http://forum.xda-developers.com/showpost.php?p=10837322&postcount=2
This commit is contained in:
tytung 2011-03-16 21:09:18 +08:00
parent a8bf8f2567
commit 038cb087d1
1 changed files with 18 additions and 0 deletions
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18
arch/arm/mach-msm/pm.c
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@ -714,10 +714,28 @@ void msm_pm_flush_console(void)
release_console_sem();
}
#if defined(CONFIG_MACH_HTCLEO)
static void htcleo_save_reset_reason()
{
/* save restart_reason to be accesible in bootloader @ ramconsole - 0x1000*/
uint32_t *bootloader_reset_reason = ioremap(0x2FFB0000, PAGE_SIZE);
if(bootloader_reset_reason!=NULL)
{
printk(KERN_INFO "msm_restart saving reason %x @ 0x2FFB0000 \n", restart_reason);
bootloader_reset_reason[0]=restart_reason;
bootloader_reset_reason[1]=restart_reason^0x004b4c63; //XOR with cLK signature so we know is not trash
}
}
#endif
static void msm_pm_restart(char str)
{
msm_pm_flush_console();
#if defined(CONFIG_MACH_HTCLEO)
htcleo_save_reset_reason();
#endif
/* always reboot device through proc comm */
if (restart_reason == 0x6f656d99)
msm_proc_comm(PCOM_RESET_CHIP_IMM, &restart_reason, 0);