d8bed2d001
As described in CB:83495, in AMD platforms, the bit 4 of CMOS Register A is bank selection. Since the MC146818 driver accesses VBNV via Bank 0, the value set in cmos_init() must not contain that bit. To prevent RTC_FREQ_SELECT_DEFAULT from being incorrectly modified, add an static assertion about the bank selection for AMD. Note that the kernel driver also ensures RTC_AMD_BANK_SELECT isn't set for AMD [1]. [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/rtc/rtc-mc146818-lib.c?id=3ae8fd4157 BUG=b:346716300 TEST=none BRANCH=skyrim Change-Id: I6122201914c40604f86dcca6025b55c595ef609e Signed-off-by: Yu-Ping Wu <yupingso@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/83537 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Karthik Ramasubramanian <kramasub@google.com> |
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| .. | ||
| i8254.h | ||
| i8259.h | ||
| isa-dma.h | ||
| keyboard.h | ||
| mc146818rtc.h | ||
| vga.h | ||
| vga_io.h | ||