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authorFelix Held <felix-coreboot@felixheld.de>2019-06-11 19:23:55 +0200
committerFelix Held <felix-coreboot@felixheld.de>2019-06-13 14:07:57 +0000
commite5b05d61dfdd1055154cead437a98aa5db85713a (patch)
tree55265760f5bc0abdd96c6d1d1591f84c120b1857 /util
parent6302203fb439a2d87566cc3e107359da41ce0560 (diff)
downloadcoreboot-e5b05d61dfdd1055154cead437a98aa5db85713a.tar.xz
util/superiotool: clarify usage of MISC and NANA defines
Change-Id: I0b3c5c810bfb05eaec13511391ecd55d7b9eb4e8 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33402 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
Diffstat (limited to 'util')
-rw-r--r--util/superiotool/superiotool.h10
1 files changed, 8 insertions, 2 deletions
diff --git a/util/superiotool/superiotool.h b/util/superiotool/superiotool.h
index 1a10fb63ab..6e59933792 100644
--- a/util/superiotool/superiotool.h
+++ b/util/superiotool/superiotool.h
@@ -127,9 +127,15 @@ and print its vendor, name, ID, revision, and config port.\n"
#define EOT -1 /* End Of Table */
#define NOLDN -2 /* NO LDN needed */
-#define NANA -3 /* Not Available */
+#define NANA -3 /* Not Available:
+ Used for registers having externally controlled
+ values that can change during runtime like
+ GPIO input value registers. */
#define RSVD -4 /* Reserved */
-#define MISC -5 /* Needs special comment in output */
+#define MISC -5 /* Needs special comment in output:
+ Used for registers depending on external pin straps
+ configuring static, but board-specific settings like
+ SIO base address or AMD/Intel power seqencing type. */
#define MAXLDN 0x14 /* Biggest LDN */
#define LDNSIZE (MAXLDN + 3) /* Biggest LDN + 0 + NOLDN + EOT */
#define MAXNUMIDX 170 /* Maximum number of indices */