path: root/src/vendorcode/google/chromeos
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authorVadim Bendebury <vbendeb@chromium.org>2015-01-13 13:07:48 -0800
committerPatrick Georgi <pgeorgi@google.com>2015-04-18 08:54:11 +0200
commit7c256405c35a0609dc03441f3fc698d9d578a3d6 (patch)
treea855a89a6c4f6640b481059aba6118ee9c79a207 /src/vendorcode/google/chromeos
parentb67b7150fc38618f5cd6407cf86def9ad8b5e25b (diff)
ipq806x: initialize UART even when console is not enabled
The ipq806x UART is based on the same universal serial port which can be also configured as i2c or SPI. Configuring it is not a trivial task, so in case the kernel wants to use earlyprintk() the port needs to be configured by the firmware. Invoking uart_init() when the console is not enabled causes include file collisions, which would require changes to more than 100 files. Leaving this to another day, rearranging the ipq806x driver to be able to invoke UART initialization function even when serial console is not configured. Also add a check to avoid initialization if UART has been already set up. BRANCH=storm BUG=chrome-os-partner:35364 TEST=verified that storm console is still fully operational when enabled, and that the kernel boots fine to the serial console login prompt even if the firmware console is disabled. Change-Id: Ibbbab875449f2ac2f0d6c504c18faf0da8251ffa Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: c512d6c1d0c0868137d1213ea84cd4bca58872db Original-Change-Id: I421acba3edf398d960b5058f15d1abb80ebc7660 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/240516 Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/9794 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/vendorcode/google/chromeos')
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