510171e23bc6beaf502b0549e6ee446e47860715
Fix Warning: sb700_cfg.c:129, GNU Compiler 4 (gcc), Priority: Normal large integer implicitly truncated to unsigned type [-Woverflow] The issue here was that an 8 bit value was being placed into a 2-bit bitfield. $ more src/vendorcode/amd/cimx/sb700/SBTYPE.h […] UINT32 AzaliaSdin0 :2; //6 UINT32 AzaliaSdin1 :2; //8 UINT32 AzaliaSdin2 :2; //10 UINT32 AzaliaSdin3 :2; //12 $ more src/mainboard/tyan/s8226/sb700_cfg.h […] * SDIN0 is define at BIT0 & BIT1 * 00 - GPIO PIN * 01 - Reserved * 10 - As a Azalia SDIN pin * SDIN1 is define at BIT2 & BIT3 * SDIN2 is define at BIT4 & BIT5 * SDIN3 is define at BIT6 & BIT7 */ #ifndef AZALIA_SDIN_PIN #define AZALIA_SDIN_PIN 0x2A #endif […] $ more src/mainboard/tyan/s8226/sb700_cfg.c […] sb_config->AzaliaSdin0 = AZALIA_SDIN_PIN; […] The 8 bit value 0x2A (binary 00 10 10 10), was being used incorrectly – I believe the original intent of this value was to enable the SDIN pins 0, 1, & 2. Because it was getting truncated as it was put into AzaliaSdin0, this wasn't happening and only SDIN0 was being enabled. I am leaving only SDIN0 enabled at this point to as not change the actual behavior on the platform. Change-Id: Icaeb956926309dbfb5af25a36ccb842877e17a34 Signed-off-by: Martin Roth <martin.roth@se-eng.com> Reviewed-on: http://review.coreboot.org/2452 Tested-by: build bot (Jenkins) Reviewed-by: Dave Frodin <dave.frodin@se-eng.com> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
------------------------------------------------------------------------------- coreboot README ------------------------------------------------------------------------------- coreboot is a Free Software project aimed at replacing the proprietary BIOS (firmware) found in most computers. coreboot performs a little bit of hardware initialization and then executes additional boot logic, called a payload. With the separation of hardware initialization and later boot logic, coreboot can scale from specialized applications that run directly firmware, run operating systems in flash, load custom bootloaders, or implement firmware standards, like PC BIOS services or UEFI. This allows for systems to only include the features necessary in the target application, reducing the amount of code and flash space required. coreboot was formerly known as LinuxBIOS. Payloads -------- After the basic initialization of the hardware has been performed, any desired "payload" can be started by coreboot. See http://www.coreboot.org/Payloads for a list of supported payloads. Supported Hardware ------------------ coreboot supports a wide range of chipsets, devices, and mainboards. For details please consult: * http://www.coreboot.org/Supported_Motherboards * http://www.coreboot.org/Supported_Chipsets_and_Devices Build Requirements ------------------ * gcc / g++ * make Optional: * doxygen (for generating/viewing documentation) * iasl (for targets with ACPI support) * gdb (for better debugging facilities on some targets) * ncurses (for 'make menuconfig') * flex and bison (for regenerating parsers) Building coreboot ----------------- Please consult http://www.coreboot.org/Build_HOWTO for details. Testing coreboot Without Modifying Your Hardware ------------------------------------------------ If you want to test coreboot without any risks before you really decide to use it on your hardware, you can use the QEMU system emulator to run coreboot virtually in QEMU. Please see http://www.coreboot.org/QEMU for details. Website and Mailing List ------------------------ Further details on the project, a FAQ, many HOWTOs, news, development guidelines and more can be found on the coreboot website: http://www.coreboot.org You can contact us directly on the coreboot mailing list: http://www.coreboot.org/Mailinglist Copyright and License --------------------- The copyright on coreboot is owned by quite a large number of individual developers and companies. Please check the individual source files for details. coreboot is licensed under the terms of the GNU General Public License (GPL). Some files are licensed under the "GPL (version 2, or any later version)", and some files are licensed under the "GPL, version 2". For some parts, which were derived from other projects, other (GPL-compatible) licenses may apply. Please check the individual source files for details. This makes the resulting coreboot images licensed under the GPL, version 2.
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