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Pali Rohár 5f41bab86c serial: a37xx: Use TBG as parent clock 
Using TBG clock as parent clock for UART allows us using higher
baudrates than 230400.

Turris MOX with external FT232RL USB-UART works fine up to 3 MBaud
(which is maximum for this USB-UART controller), while EspressoBIN with
integrated pl2303 USB-UART also works fine up to 6 MBaud.

Slower baudrates with TBG as a parent clock can be achieved by
increasing TBG dividers and oversampling divider. When using the slowest
TBG clock, minimal working baudrate is 300.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
2021-07-08 16:40:52 +02:00
..
adc dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
ata various minor sandbox improvements 2021-07-07 13:34:42 -04:00
axi dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
bios_emulator treewide: Convert macro and uses of __section(foo) to __section("foo") 2021-05-24 14:21:30 -04:00
block dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
bootcount dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
bus bus: ti-sysc: change in a normal driver 2021-03-22 19:23:27 +13:00
button dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
cache dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
clk clk: armada-37xx: Set DM_FLAG_PRE_RELOC 2021-07-08 16:40:52 +02:00
core remove struct uclass_driver::ops 2021-07-06 10:38:03 -06:00
cpu dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
crypto dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
ddr ppc: Remove T4160RDB board 2021-07-07 19:52:24 -04:00
demo common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
dfu dfu: add error callback 2021-06-18 10:09:41 +02:00
dma dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
fastboot fastboot: Fix possible buffer overrun 2021-04-12 17:44:55 -04:00
firmware dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
fpga arm: socfpga: Move Stratix10 and Agilex to use TARGET_SOCFPGA_SOC64 2021-03-08 10:59:10 +08:00
gpio arm: Remove spear600 boards and the rest of SPEAr support 2021-07-07 22:22:42 -04:00
hwspinlock dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
i2c arm: Remove spear600 boards and the rest of SPEAr support 2021-07-07 22:22:42 -04:00
input dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
led dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
mailbox dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
memory memory: stm32-fmc2: migrate trace to dev and log macro 2021-01-13 09:52:58 +01:00
misc sandbox: cros-ec: Add tests for the Chromium OS EC PWM driver 2021-07-06 10:38:03 -06:00
mmc various minor sandbox improvements 2021-07-07 13:34:42 -04:00
mtd arm: Remove spear600 boards and the rest of SPEAr support 2021-07-07 22:22:42 -04:00
mux dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
net ppc: Remove T4160RDB board 2021-07-07 19:52:24 -04:00
nvme dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
pch dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
pci ppc: Remove caddy2 / vme8349 boards 2021-07-07 19:52:23 -04:00
pci_endpoint dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
phy dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
pinctrl various minor sandbox improvements 2021-07-07 13:34:42 -04:00
power dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
pwm dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
qe ppc: Remove TARGET_T1040QDS references 2021-04-10 08:04:42 -04:00
ram dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
remoteproc dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
reset dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
rng dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
rtc dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
scsi dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
serial serial: a37xx: Use TBG as parent clock 2021-07-08 16:40:52 +02:00
smem dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
soc dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
sound dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
spi various minor sandbox improvements 2021-07-07 13:34:42 -04:00
spmi dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
sysinfo dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
sysreset sysreset: provide type of reset in do_reset cmd 2021-04-20 07:31:12 -04:00
tee dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
thermal dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
timer dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
tpm tpm: Correct warning on 32-bit build 2021-03-13 13:14:52 -05:00
ufs dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
usb arm: Remove spear600 boards and the rest of SPEAr support 2021-07-07 22:22:42 -04:00
video dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
virtio dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
w1 various minor sandbox improvements 2021-07-07 13:34:42 -04:00
w1-eeprom dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
watchdog dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
xen dm: define LOG_CATEGORY for all uclass 2021-07-06 10:38:03 -06:00
Kconfig board: Rename uclass to sysinfo 2020-11-06 10:18:20 +08:00
Makefile cpu: Rename SPL_CPU_SUPPORT to SPL_CPU 2021-03-27 15:04:31 +13:00