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authorAaron Durbin <adurbin@chromium.org>2017-01-05 10:07:19 -0600
committerAaron Durbin <adurbin@chromium.org>2017-01-06 17:30:58 +0100
commit49342cd6880b3f2a8e20957d976914cd4ee7b43d (patch)
treeacc440a4eace0e6fb206c0a1ea4384dfbf294059 /src/include
parent7ad4dc5e9914e927a827ce48a030d2d04e7ec792 (diff)
downloadcoreboot-49342cd6880b3f2a8e20957d976914cd4ee7b43d.tar.xz
arch/x86: fix cmos post logging in non romcc bootblock
cmos_post_init() is called in src/arch/x86/bootblock_simple.c, and that function is reponsible for bootstrapping the cmos post register contents. Without this function being called none of the cmos post functionality works correctly. Therefore, add a call to lib/bootblock.c which the C_ENVIRONMENT_BOOTBLOCK SoCs use. BUG=chrome-os-partner:61546 Change-Id: I2e3519f2f3f2c28e5cba26b5811f1eb0c2a90572 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/18043 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/include')
-rw-r--r--src/include/pc80/mc146818rtc.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/src/include/pc80/mc146818rtc.h b/src/include/pc80/mc146818rtc.h
index 66d5edb4b9..99fba9dbe5 100644
--- a/src/include/pc80/mc146818rtc.h
+++ b/src/include/pc80/mc146818rtc.h
@@ -221,10 +221,39 @@ unsigned read_option_lowlevel(unsigned start, unsigned size, unsigned def);
#define CMOS_POST_EXTRA_DEV_PATH 0x01
void cmos_post_log(void);
+
+/* cmos_post_init() is exposed in this manner because it also needs to be called
+ * by bootblock code compiled by romcc. */
+static inline void cmos_post_init(void)
+{
+ u8 magic = CMOS_POST_BANK_0_MAGIC;
+
+ /* Switch to the other bank */
+ switch (cmos_read(CMOS_POST_BANK_OFFSET)) {
+ case CMOS_POST_BANK_1_MAGIC:
+ break;
+ case CMOS_POST_BANK_0_MAGIC:
+ magic = CMOS_POST_BANK_1_MAGIC;
+ break;
+ default:
+ /* Initialize to zero */
+ cmos_write(0, CMOS_POST_BANK_0_OFFSET);
+ cmos_write(0, CMOS_POST_BANK_1_OFFSET);
+#if CONFIG_CMOS_POST_EXTRA
+ cmos_write32(CMOS_POST_BANK_0_EXTRA, 0);
+ cmos_write32(CMOS_POST_BANK_1_EXTRA, 0);
+#endif
+ }
+
+ cmos_write(magic, CMOS_POST_BANK_OFFSET);
+}
#else
static inline void cmos_post_log(void) {}
+static inline void cmos_post_init(void) {}
#endif /* CONFIG_CMOS_POST */
+#else /* !CONFIG_ARCH_X86 */
+static inline void cmos_post_init(void) {}
#endif /* CONFIG_ARCH_X86 */
#endif /* PC80_MC146818RTC_H */