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Andre Przywara 7734f04075 arm64: dts: juno: Fix UART frequency 
[ Upstream commit 39a1a8941b ]

Older versions of the Juno *SoC* TRM [1] recommended that the UART clock
source should be 7.2738 MHz, whereas the *system* TRM [2] stated a more
correct value of 7.3728 MHz. Somehow the wrong value managed to end up in
our DT.

Doing a prime factorisation, a modulo divide by 115200 and trying
to buy a 7.2738 MHz crystal at your favourite electronics dealer suggest
that the old value was actually a typo. The actual UART clock is driven
by a PLL, configured via a parameter in some board.txt file in the
firmware, which reads 7.37 MHz (sic!).

Fix this to correct the baud rate divisor calculation on the Juno board.

[1] http://infocenter.arm.com/help/topic/com.arm.doc.ddi0515b.b/DDI0515B_b_juno_arm_development_platform_soc_trm.pdf
[2] http://infocenter.arm.com/help/topic/com.arm.doc.100113_0000_07_en/arm_versatile_express_juno_development_platform_(v2m_juno)_technical_reference_manual_100113_0000_07_en.pdf

Fixes: 71f867ec13 ("arm64: Add Juno board device tree.")
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-27 14:51:22 +01:00
arch arm64: dts: juno: Fix UART frequency 2020-01-27 14:51:22 +01:00
block
certs
crypto
Documentation hwrng: omap3-rom - Fix missing clock by probing with device tree 2020-01-27 14:51:20 +01:00
drivers drm/radeon: fix bad DMA from INTERRUPT_CNTL2 2020-01-27 14:51:22 +01:00
firmware
fs afs: Remove set but not used variables 'before', 'after' 2020-01-27 14:51:22 +01:00
include mmc: sdio: fix wl1251 vendor id 2020-01-27 14:51:21 +01:00
init
ipc
kernel bpf, offload: Unlock on error in bpf_offload_dev_create() 2020-01-27 14:51:20 +01:00
lib Partially revert "kfifo: fix kfifo_alloc() and kfifo_init()" 2020-01-27 14:51:08 +01:00
LICENSES
mm
net packet: fix data-race in fanout_flow_is_huge() 2020-01-27 14:51:21 +01:00
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README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.