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path: root/src/soc/rockchip/common/uart.c
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2018-02-02rockchip: Correct UART reference clock valueJulius Werner
The Rockchip UARTs are tied directly to the 24MHz oscillator and are thus clocked with exactly 24MHz. The reasons why our code instead uses some 23.xxMHz value have long been lost in time. For the current shared 8250 implementation, the baud rate divisor for 115200 would be the same. Correcting this does make the information in the coreboot table more accurate and help payloads chose a better divisor, though. Change-Id: Ieceb07760178f8ddbb5936f8742b78f8def4072d Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/23556 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-05-09rockchip/rk*: replace UART special snowflake with standard driverPatrick Georgi
The standard uart8250mem_32 driver is now usable on ARM, so use it. BUG=none BRANCH=none TEST=see that serial firmware builds still log on serial in all stages on veyron_minnie. Also verified that a 9600 baud console is functional. Change-Id: I653b70a0d51a8d136e1da17537988f5b33c7a160 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: fa27c60fd38002775072d11fca431d4788b4d1d7 Original-Change-Id: I047d74ac2d5c311f303955e62391114e16ec087a Original-Signed-off-by: Patrick Georgi <pgeorgi@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/337551 Original-Commit-Ready: Patrick Georgi <pgeorgi@chromium.org> Original-Tested-by: Patrick Georgi <pgeorgi@chromium.org> Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: https://review.coreboot.org/14319 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2016-04-07rockchip: refactor to sharing code among similar SOCsVadim Bendebury
Upcoming designs are based on similar SOCs, this patch moves code which can be reused into a common directory under soc/rockchip. Changing spi.h to include stdder.h, as this is were check_member() is defined, this becomes necessary later when the new SOC code is added. Renaming UART driver private functions not to be bound to any particular SOC. BUG=none BRANCH=none TEST=the refactored code works fine on the new platform (with the rest of the patches applied). Change-Id: I39a505aecda8849daa58a8eca0e44a5243664423 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: f63f2582042ac115481207ddf329ea2e3260e55e Original-Change-Id: I3a1139305354d460492b25a45f3da315a9a0b49e Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/335408 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/14235 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>