console: Add an SoC-specific post-code call

Add a post-code call that SoCs can hook to output or save in any way
that is specific to that SoC.

Signed-off-by: Martin Roth <gaumless@gmail.com>
Change-Id: I0369e4362840d7506d301105d8e1e2fd865919f4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68545
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>

src/console/post.c

@@ -5,6 +5,7 @@
 
 /* Write POST information */
 void __weak arch_post_code(uint8_t value) { }
+void __weak soc_post_code(uint8_t value) { }
 
 /* Some mainboards have very nice features beyond just a simple display.
  * They can override this function.
@@ -18,6 +19,8 @@ void post_code(uint8_t value)
 		   for displaying POST so keep it first. */
 		arch_post_code(value);
 
+		soc_post_code(value);
+
 		if (CONFIG(CONSOLE_POST))
 			printk(BIOS_INFO, "POST: 0x%02x\n", value);
 

src/include/console/console.h

@@ -16,6 +16,7 @@
 void post_code(u8 value);
 void mainboard_post(u8 value);
 void arch_post_code(u8 value);
+void soc_post_code(uint8_t value);
 
 void __noreturn die(const char *fmt, ...);
 #define die_with_post_code(value, fmt, ...) \