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coreboot-kgpe-d16/src/soc/amd/stoneyridge/uart.c

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soc: Add AMD Stoney Ridge southbridge code Copy the Hudson/Kern code from southbridge/amd/pi/hudson. This is the first of a series of patches to migrate Stoney Ridge support from cpu, northbridge, and southbridge to soc/ Changes: - add soc/amd/stoneyridge and soc/amd/common - remove all other Husdon versions - update include paths, etc - clean up Kconfig and Makefile - create chip.c to contain chip_ops Change-Id: Ib88a868e654ad127be70ecc506f6b90b784f8d1b Signed-off-by: Marc Jones <marcj303@gmail.com> Reviewed-on: https://review.coreboot.org/19722 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2017-05-05 05:17:45 +02:00
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2015 Advanced Micro Devices, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <console/uart.h>
stoneyridge: Rename hudson to southbridge Simplify funciton names and remove reference to hudson in stoneyridge. The southbridge in Stoney Ridge is Kern and hudson naming is no longer accurate. BUG=b:62200157 BRANCH=none TEST=Build and booted on Kahlee. Change-Id: Ide7a72dae69b881997101f1e37a1ac739901744d Signed-off-by: Marc Jones <marcj303@gmail.com> Reviewed-on: https://review.coreboot.org/20912 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2017-08-08 03:08:24 +02:00
#include <soc/southbridge.h>
soc: Add AMD Stoney Ridge southbridge code Copy the Hudson/Kern code from southbridge/amd/pi/hudson. This is the first of a series of patches to migrate Stoney Ridge support from cpu, northbridge, and southbridge to soc/ Changes: - add soc/amd/stoneyridge and soc/amd/common - remove all other Husdon versions - update include paths, etc - clean up Kconfig and Makefile - create chip.c to contain chip_ops Change-Id: Ib88a868e654ad127be70ecc506f6b90b784f8d1b Signed-off-by: Marc Jones <marcj303@gmail.com> Reviewed-on: https://review.coreboot.org/19722 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2017-05-05 05:17:45 +02:00
uintptr_t uart_platform_base(int idx)
{
soc/amd/stoneyridge: Check UART index The Stoney Ridge APU has only two internal UARTs. Add checks for invalid settings. When enabling the UART, return if the console is on any UART not equal 0 or 1. The base address returned is 0 if an invalid configuration is used. All callers check the return value before using the returned value. Finally, provide an assert at the earliest availability of the console to get the notice into the cbmem console. BUG=b:62201567 TEST=Build with UART = -1, 0, 2. Inspect objdump and boot to OS. Build without ST UART and inspect with objdump. Change-Id: I9432571712bae15a604f4280ea5e0f81fd68604d Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-on: https://review.coreboot.org/21096 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-08-18 18:07:07 +02:00
if (CONFIG_UART_FOR_CONSOLE < 0 || CONFIG_UART_FOR_CONSOLE > 1)
return 0;
soc/amd/stoneyridge: Fix most checkpatch errors Correct the majority of reported errors and mark most of the remaining ones as todo. (Some of the lines requiring a >80 break are indented too much currently.) Some of the alignment in hudson.h still causes checkpatch errors, but this is intentionally left as-is. Also make other misc. changes, e.g. consistency in lower-case for hex values, using defined values, etc. These changes were confirmed to cause no changes in a Gardenia build. No other improvements were made, e.g. changing to helper functions, or converting functions like __outbyte(). BUG=chrome-os-partner:622407746 Change-Id: I768884a4c4b9505e77f5d6bfde37797520878912 Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-on: https://review.coreboot.org/19986 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2017-06-15 20:17:38 +02:00
return (uintptr_t)(APU_UART0_BASE + 0x2000 * (idx & 1));
soc: Add AMD Stoney Ridge southbridge code Copy the Hudson/Kern code from southbridge/amd/pi/hudson. This is the first of a series of patches to migrate Stoney Ridge support from cpu, northbridge, and southbridge to soc/ Changes: - add soc/amd/stoneyridge and soc/amd/common - remove all other Husdon versions - update include paths, etc - clean up Kconfig and Makefile - create chip.c to contain chip_ops Change-Id: Ib88a868e654ad127be70ecc506f6b90b784f8d1b Signed-off-by: Marc Jones <marcj303@gmail.com> Reviewed-on: https://review.coreboot.org/19722 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2017-05-05 05:17:45 +02:00
}
unsigned int uart_platform_refclk(void)
{
return 48000000;
}
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