1:打开驱动日志
--- a/kernel/arch/arm/configs/msm8909-1gb_defconfig +++ b/kernel/arch/arm/configs/msm8909-1gb_defconfig @@ -614,3 +614,5 @@ CONFIG_MSM_CORE_CTL_HELPER=yCONFIG_HAVE_ARCH_SECCOMP_FILTER=yCONFIG_SECCOMP=yCONFIG_SECCOMP_FILTER=y +CONFIG_DEBUG_LL=y +CONFIG_EARLY_PRINTK=y
2：移除emmc版本检查
diff --git a/kernel/drivers/mmc/core/mmc.c b/kernel/drivers/mmc/core/mmc.c old mode 100644 new mode 100755 index 4ede8e3..4df1712 --- a/kernel/drivers/mmc/core/mmc.c +++ b/kernel/drivers/mmc/core/mmc.c @@ -328,12 +328,13 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)}card->ext_csd.rev = ext_csd[EXT_CSD_REV]; - if (card->ext_csd.rev > 7) { + //richal add:disable emmc version check + /*if (card->ext_csd.rev > 7) {pr_err("%s: unrecognised EXT_CSD revision %d\n",mmc_hostname(card->host), card->ext_csd.rev);err = -EINVAL;goto out; - } + }*//* fixup device after ext_csd revision field is updated */mmc_fixup_device(card, mmc_fixups);
3：在系统崩溃时关闭qload mode
diff --git a/kernel/drivers/power/reset/msm-poweroff.c b/kernel/drivers/power/reset/msm-poweroff.c old mode 100644 new mode 100755 index b0aa6b0..854c8db --- a/kernel/drivers/power/reset/msm-poweroff.c +++ b/kernel/drivers/power/reset/msm-poweroff.c @@ -63,7 +63,7 @@ static void *emergency_dload_mode_addr;static bool scm_dload_supported;static int dload_set(const char *val, struct kernel_param *kp); -static int download_mode = 1; +static int download_mode = 0; //richal changed:disable qdload modemodule_param_call(download_mode, dload_set, param_get_int,&download_mode, 0644);static int panic_prep_restart(struct notifier_block *this,
4：打开关机充电功能
修改/android/bootable/bootloader/lk/app/aboot/aboot.c
unsigned char *update_cmdline(const char * cmdline) {。。。。省略代码if (boot_into_recovery && gpt_exists)cmdline_len += strlen(secondary_gpt_enable);if (boot_into_ffbm) {cmdline_len += strlen(androidboot_mode);cmdline_len += strlen(ffbm_mode_string);/* reduce kernel console messages to speed-up boot */cmdline_len += strlen(loglevel);} else if (boot_reason_alarm) {cmdline_len += strlen(alarmboot_cmdline);} else if (/*device.charger_screen_enabled &&*/ //注释掉target_pause_for_battery_charge()) {pause_at_bootup = 1;cmdline_len += strlen(battchg_pause);}。。。。省略代码 }在代码中修改 device.charger_screen_enabled 即可。
低版本 可能加个
target_build_variant_user() 在User版本才能进入关机充电debug正常
此方法在 android/bootable/bootloader/lk/target/init.c 下
5：打开lk串口日志
diff --git a/bootable/bootloader/lk/project/msm8909.mk b/bootable/bootloader/lk/project/msm8909.mk old mode 100644 new mode 100755 index afc40f6..007499a --- a/bootable/bootloader/lk/project/msm8909.mk +++ b/bootable/bootloader/lk/project/msm8909.mk @@ -20,7 +20,7 @@ ENABLE_PWM_SUPPORT := true#DEFINES += WITH_DEBUG_DCC=1DEFINES += WITH_DEBUG_LOG_BUF=1 -DEFINES += WITH_DEBUG_UART=0 +DEFINES += WITH_DEBUG_UART=1#DEFINES += WITH_DEBUG_FBCON=1DEFINES += DEVICE_TREE=1#DEFINES += MMC_BOOT_BAM=1