diff options
| author | Leo Yan <leo.yan@linaro.org> | 2017-07-26 14:36:01 +0800 |
|---|---|---|
| committer | Leo Yan <leo.yan@linaro.org> | 2017-07-26 14:47:57 +0800 |
| commit | c9e8774cb806dbf989ca84d401d6ecbd199f6b67 (patch) | |
| tree | fcd70610aa37cd90bec37326dd15b141234787f9 | |
| parent | aa965e1583349b36ce7edd2b3fe9f1f461ef8b23 (diff) | |
hikey: Disable VBUS_DET interrupt for PMIC
After disconnect Jumper pin 1-2 in J15 header, the signal VBUS_DET is to
be pulled down to low level. This will assert the interrupt signal in
PMIC and trigger IRQ in GIC; the asserted signal from VBUS_DET is level
triggered and kernel reports the warning for unhooked interrupt handling;
and VBUS_DET stays with low level, this triggers IRQ storm in kernel.
This patch is to disable interrupt for VBUS_DET in PMIC, this can
dismiss the verbose log and IRQ storm after kernel booting.
[ 40.835279] irq 57: nobody cared (try booting with the "irqpoll" option)
[ 40.842075] CPU: 0 PID: 980 Comm: irq/57-hi655x-p Not tainted 4.4.77-568944-g576a0114dec8-dirty #667
[ 40.851303] Hardware name: HiKey Development Board (DT)
[ 40.856580] Call trace:
[ 40.859060] [<ffffff800808c4cc>] dump_backtrace+0x0/0x1e0
[ 40.864516] [<ffffff800808c8ac>] show_stack+0x20/0x28
[ 40.869622] [<ffffff80084b9688>] dump_stack+0xa8/0xe0
[ 40.874729] [<ffffff800812dd5c>] __report_bad_irq+0x40/0xec
[ 40.880360] [<ffffff800812e0bc>] note_interrupt+0x1e4/0x2d8
[ 40.885992] [<ffffff800812b11c>] handle_irq_event_percpu+0xd8/0x268
[ 40.892324] [<ffffff800812b2f8>] handle_irq_event+0x4c/0x7c
[ 40.897955] [<ffffff800812ecbc>] handle_level_irq+0xcc/0x178
[ 40.903672] [<ffffff800812a778>] generic_handle_irq+0x34/0x4c
[ 40.909481] [<ffffff80085074c8>] pl061_irq_handler+0xa8/0x124
[ 40.915286] [<ffffff800812a778>] generic_handle_irq+0x34/0x4c
[ 40.921092] [<ffffff800812a820>] __handle_domain_irq+0x90/0xf8
[ 40.926985] [<ffffff8008082620>] gic_handle_irq+0x58/0xa8
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
| -rw-r--r-- | plat/hisilicon/hikey/hikey_bl1_setup.c | 5 | ||||
| -rw-r--r-- | plat/hisilicon/hikey/include/hi6553.h | 1 |
2 files changed, 6 insertions, 0 deletions
diff --git a/plat/hisilicon/hikey/hikey_bl1_setup.c b/plat/hisilicon/hikey/hikey_bl1_setup.c index b0058746..05e2e35d 100644 --- a/plat/hisilicon/hikey/hikey_bl1_setup.c +++ b/plat/hisilicon/hikey/hikey_bl1_setup.c @@ -288,6 +288,11 @@ static void hikey_hi6553_init(void) /* select 32.764KHz */ mmio_write_8(HI6553_CLK19M2_600_586_EN, 0x01); + + /* Disable vbus_det interrupts */ + data = mmio_read_8(HI6553_IRQ2_MASK); + data = data | 0x3; + mmio_write_8(HI6553_IRQ2_MASK, data); } static void init_mmc0_pll(void) diff --git a/plat/hisilicon/hikey/include/hi6553.h b/plat/hisilicon/hikey/include/hi6553.h index 76cb8ff1..a80d36df 100644 --- a/plat/hisilicon/hikey/include/hi6553.h +++ b/plat/hisilicon/hikey/include/hi6553.h @@ -19,6 +19,7 @@ #define DISABLE6_XO_CLK_RF2 (1 << 4) #define HI6553_VERSION_REG (PMUSSI_BASE + (0x000 << 2)) +#define HI6553_IRQ2_MASK (PMUSSI_BASE + (0x008 << 2)) #define HI6553_ENABLE2_LDO1_8 (PMUSSI_BASE + (0x029 << 2)) #define HI6553_DISABLE2_LDO1_8 (PMUSSI_BASE + (0x02a << 2)) #define HI6553_ONOFF_STATUS2_LDO1_8 (PMUSSI_BASE + (0x02b << 2)) |