Since HDMI needs clock rate 74.25MHz, so plls must support
a multiple of it.
For Rockchip rk3368 pll has better jetter with 1188MHz, so
add 1188MHz support.
Change-Id: I68c7333ae076ecabf8637298ee8ca43149cb17d1
Signed-off-by: Xu Jianqun <jay.xu@rock-chips.com>
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Add dt-binding for mipi dsi 24M clock, and use it.
Change-Id: I1f4dfac958b8b5dacfa6da02151dc3d6a2bd27a7
Signed-off-by: Jianqun xu <jay.xu@rock-chips.com>
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
The DPHY(DSI PHY) in Rockchip rk3368 supports MIPI/TTL/LVDS
mode. Use the clock IDs (PCLK_DPHYRX and PCLK_DPHYTX0) for
DPHY clocks.
Change-Id: I6a133d6da839d6545e507f38b361b3457e5ff3ee
Signed-off-by: Jianqun xu <jay.xu@rock-chips.com>
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Programmable THRE Interrupt mode in order to increase system
performance.
Change-Id: Ic1ef9ecae0c6feb00170ad97ee3c6245ca3bf068
Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
Most SOCS have only 8 or 6 channels, but have more than 16
peripherals. If those peripherals work together, some
fails to request dma channel, because there are no enough
channels. And maybe it's unnecessary to use dma for uart
tx. It is necessary for uart rx when hardware auto flow
control is not used.
&uart0 {
dma-names = "!tx", "rx"; // disable uart tx with dma
status = "okay";
};
Change-Id: Ia74477514ba57300a4d19a5c2565ae7b5b8ab521
Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
To avoid "too much work for irq" issue, cherry pick the the patch.
It reads the RBR to clear the time out interrupt, but sometime the
rx fifo may be not empty while cpu reads the RBR. Which would cause
the data lost.
patch for "too much work":06451e93ab59e5b1843c29cbb468a274f4919563
By the way, current patch can't get rid of the risk entirely, so I
try a lot to solve it. Unfortunately, I only got the phenomenon that
lower pclk can reduce the probability. And I check the dw data sheet,
it has pclk and sclk, so there is synchronization problem. But it
only requires (slck < 4*pclk).
Change-Id: I01a36c689b43310294c45294abcf4982f5ddf2af
Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
Add wakeup-source to uart dts node to enable uart
wake up system when it receives data.
Change-Id: If4e82a4d3dbaca708209553dc3693089864c782f
Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
before the patch:
ls /dev/ttyS
ttyS0 ttyS1 ttyS2 ttyS3 ttyS4 ttyS5 ttyS6 ttyS7
after the patch:
ls /dev/ttyS
ttyS3 ttyS4 ttyS6
Change-Id: I844523408751cb579bbfb50fafb7923d5c2cafdf
Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
If external device sends data continuously, then uart is
always busy, and baud rate can't be set. It is useful
to reset uart and set loop back mode to make sure it is
idle.
Change-Id: I87286711870ff685ea29e36e61c97d45be5a6d08
Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
To reduce the uart interrupts, which may cause:
serial8250: too much work for irq xx
Change-Id: I89e0d990677e4cffae431e60521b3e16e8381f05
Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
The UART CPR may be 0 of some rockchip soc,
but it supports fifo and AFC, fifo entry is 32 default.
Change-Id: I44f420c556f703c2848c38dc8449546274ef887d
Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
Refer to E.2 (P67) of Device Class Definition for Human Interface
Devices V1.11, the bmAttributes field of the standard configuration
descriptor bit 5 should be set if the HID support Remote Wakeup.
This patch enable the usb HID to wake up the system if the HID
supports remote wakeup.
Change-Id: I169c49ff6187b6400b91633332a72964caca1a94
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
(cherry picked from commit e1653e4dc5)
The userspace might check tty information in proc fs.
Folded following develop-4.4 commit changes into this patch:
77e938e49d ("fiq_debugger: Sanity check state in fiq_tty_proc_show")
Fix for 4.19.
Change-Id: If3e81aacbc7948dd3000606702296bc2b76bec09
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
If this cpu is not the same as current cpu, it means we don't use
current cpu any more, and this cpu handles uart interrupt. So it
is unnecessary to set uart interrupt to this cpu again.
Change-Id: Ia454af96ee766dcbc8b22339652a4aa7eb229568
Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
1.When fiq debugger driver probes, and uart rx is pulled low.
The uart interrupt comes so early that uart handler can't be
called. Which makes interrupt come frequently and block the cpu.
2.Remove '<hit enter to activate fiq debugger>'.
Change-Id: I4656d6942bb2cbb0e992852a52bc82f71deadda8
Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
Change-Id: Ia5a7e0c8bcdcc33880f6048d71068a5ccb1c042e
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
(cherry picked from commit ae98ee15abc476711d04b5885848ee6570ee816d)
Because init.rc does the following operation, handle_sysrq
will do nothing. If we want to use sysrq, __handle_sysrq
can work.
write /proc/sys/kernel/sysrq 0
Change-Id: Ia51debd92f393326f183736e405e25dc4d6a2abc
Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
update some features:
1. rename sip smc function name;
2. add serial hw irq and phyical base address parse;
3. use FIQ_DEBUGGER_TRUST_ZONE for armv7 and armv8.
Change-Id: I920899f30cadf1ec8380a2e70f5d1e0e801ec5c2
Signed-off-by: chenjh <chenjh@rock-chips.com>
cpu hotplug register to hotplug state machine.
use subsys_initcall.
Change-Id: I65431a7b22bf8dcd9b5d4c4a6c4967251038486e
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
This change allows to use same kernel image with
different console options for uart and fiq_debugger.
If fiq_debugger.disable will be set to 1/y/Y,
fiq_debugger will not be initialized.
Change-Id: I71fda54f5f863d13b1437b1f909e52dd375d002d
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
(cherry picked from https://android.googlesource.com/kernel/common:android-4.14
commit 76d292f95a217b4ba236fd2db858ac99295fd832)
fiq_debugger is taking over uart, so it is necessary to disable
original uart in DT file. It can be done manually or by overlay.
Change-Id: I9f50ec15b0e22e602d73b9f745fc8666f8925d09
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
(cherry picked from https://android.googlesource.com/kernel/common:android-4.14
commit 0ff9e291c1181f124a4ea58ce95f09b7acb735cc)
Add fiq_debugger_arm64.c that implements the platform-specific
functions.
Change-Id: I4d8b96777bb8503a93d4eb47bbde8e018740a5bf
Signed-off-by: Colin Cross <ccross@android.com>
[AmitP: Remove unused stackframe -> sp to align with upstream commit
31e43ad3b7 ("arm64: unwind: remove sp from struct stackframe")
Also folded following android-4.9 commit changes into this patch
a33d9f9fa3 ("ANDROID: fiq_debugger: Pass task parameter to unwind_frame()")]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
(cherry picked from https://android.googlesource.com/kernel/common:android-4.14
commit c9d6bc7ab0a4360f79418aa16f3cd68ac2f57a40)
IRQ mode already passes in a struct pt_regs from get_irq_regs().
FIQ mode passes in something similar but not identical to a
struct pt_regs - FIQ mode stores the spsr of the interrupted mode
in slot 17, while pt_regs expects orig_r0.
Replace the existing mixture of void *regs, unsigned *regs, and
struct pt_regs * const with const struct pt_regs *. Modify
dump_regs not to print the spsr since it won't be there in a
struct pt_regs anyways. Modify dump_allregs to highlight the
mode that was interrupted, making spsr easy to find there.
Change-Id: Ibfe1723d702306c7605fd071737d7be9ee9d8c12
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
(cherry picked from https://android.googlesource.com/kernel/common:android-4.14
commit bf32f8accce8701e896879fee463e5b07cbeb8b9)
