mainboard/lenovo: reserve century byte

The century byte is used by most RTC (default 0x32@nvram).
Even the century byte can disabled via ACPI it's more safe to reserve
it's space. Because some RTC will act with that byte anyhow.
Some OS overwrite it when syncronize the RTC.

Change-Id: I078c0c57215ccb925afa85b9d067f15268801ec9
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Reviewed-on: https://review.coreboot.org/11853
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>

12 files changed, 43 insertions, 29 deletions

diff --git a/src/mainboard/lenovo/g505s/cmos.layout b/src/mainboard/lenovo/g505s/cmos.layout
index d83bb14d2618..61c569034678 100644
--- a/src/mainboard/lenovo/g505s/cmos.layout
+++ b/src/mainboard/lenovo/g505s/cmos.layout
@@ -24,7 +24,8 @@ entries
 396          1       e       1        interleave_chip_selects
 397          2       e       8        max_mem_clock
 399          1       e       2        multi_core
-400          1       e       1        power_on_after_fail
+#400         8       r       8        reserved for century byte
+408          1       e       1        power_on_after_fail
 412          4       e       6        debug_level
 440          4       e       9        slow_cpu
 444          1       e       1        nmi
diff --git a/src/mainboard/lenovo/t400/cmos.layout b/src/mainboard/lenovo/t400/cmos.layout
index e9764a568e1a..8e642f8ef103 100644
--- a/src/mainboard/lenovo/t400/cmos.layout
+++ b/src/mainboard/lenovo/t400/cmos.layout
@@ -53,8 +53,7 @@ entries
 395           4       e       6        debug_level
 #399          1       r       0        unused
 
-# coreboot config options: EC
-400         8       h       0        volume
+#400          8       r       0        reserved for century byte
 
 # coreboot config options: southbridge
 408         1       e       10        sata_mode
@@ -82,8 +81,10 @@ entries
 
 # coreboot config options: graphics
 944         2       e       12       hybrid_graphics_mode
+#946        6       r       0        unused
 
-#946          2       r       0        unused
+# coreboot config options: EC
+952         8       h       0        volume
 
 # coreboot config options: check sums
 984          16       h       0        check_sum
diff --git a/src/mainboard/lenovo/t420s/cmos.layout b/src/mainboard/lenovo/t420s/cmos.layout
index cb76e7064b85..43628406a1be 100644
--- a/src/mainboard/lenovo/t420s/cmos.layout
+++ b/src/mainboard/lenovo/t420s/cmos.layout
@@ -52,7 +52,7 @@ entries
 395          4       e       6        debug_level
 #399          1       r       0        unused
 
-400          8       h       0        volume
+#400         8       r       0        reserved for century byte
 
 # coreboot config options: southbridge
 408          1       e       1        nmi
@@ -77,7 +77,9 @@ entries
 
 # coreboot config options: northbridge
 432          3       e       11       gfx_uma_size
-#435          549     r       0        unused
+#435         5       r       0        unused
+
+440          8       h       0        volume
 
 # SandyBridge MRC Scrambler Seed values
 896          32      r       0        mrc_scrambler_seed
diff --git a/src/mainboard/lenovo/t430s/cmos.layout b/src/mainboard/lenovo/t430s/cmos.layout
index 0d3d089391c5..16b499aac580 100644
--- a/src/mainboard/lenovo/t430s/cmos.layout
+++ b/src/mainboard/lenovo/t430s/cmos.layout
@@ -52,7 +52,7 @@ entries
 395          4       e       6        debug_level
 #399          1       r       0        unused
 
-400          8       h       0        volume
+#400         8       r       0        reserved for century byte
 
 # coreboot config options: southbridge
 408          1       e       1        nmi
@@ -77,7 +77,8 @@ entries
 
 # coreboot config options: northbridge
 432          3       e       11       gfx_uma_size
-#435          549     r       0        unused
+#435         5       r       0        unused
+440          8       h       0        volume
 
 # SandyBridge MRC Scrambler Seed values
 896          32      r       0        mrc_scrambler_seed
diff --git a/src/mainboard/lenovo/t520/cmos.layout b/src/mainboard/lenovo/t520/cmos.layout
index bd9fd2aeb4de..2cf362956cf6 100644
--- a/src/mainboard/lenovo/t520/cmos.layout
+++ b/src/mainboard/lenovo/t520/cmos.layout
@@ -52,7 +52,7 @@ entries
 395          4       e       6        debug_level
 #399          1       r       0        unused
 
-400          8       h       0        volume
+#400         8       r       0        reserved for century byte
 
 # coreboot config options: southbridge
 408          1       e       1        nmi
@@ -77,7 +77,8 @@ entries
 
 # coreboot config options: northbridge
 432         3        e      11        gfx_uma_size
-#435        549       r       0        unused
+#435        5        r       0        unused
+440         8        h       0        volume
 
 # SandyBridge MRC Scrambler Seed values
 896         32        r       0        mrc_scrambler_seed
diff --git a/src/mainboard/lenovo/t530/cmos.layout b/src/mainboard/lenovo/t530/cmos.layout
index bd9fd2aeb4de..e21c197d4244 100644
--- a/src/mainboard/lenovo/t530/cmos.layout
+++ b/src/mainboard/lenovo/t530/cmos.layout
@@ -52,7 +52,7 @@ entries
 395          4       e       6        debug_level
 #399          1       r       0        unused
 
-400          8       h       0        volume
+#400         8       r       0        reserved for century byte
 
 # coreboot config options: southbridge
 408          1       e       1        nmi
@@ -77,7 +77,9 @@ entries
 
 # coreboot config options: northbridge
 432         3        e      11        gfx_uma_size
-#435        549       r       0        unused
+#435        5        r       0        unused
+
+440          8       h       0        volume
 
 # SandyBridge MRC Scrambler Seed values
 896         32        r       0        mrc_scrambler_seed
diff --git a/src/mainboard/lenovo/t60/cmos.layout b/src/mainboard/lenovo/t60/cmos.layout
index 29ea2efbf329..e5879d649389 100644
--- a/src/mainboard/lenovo/t60/cmos.layout
+++ b/src/mainboard/lenovo/t60/cmos.layout
@@ -52,9 +52,7 @@ entries
 395          4       e       6        debug_level
 #399          1       r       0        unused
 
-# coreboot config options: cpu
-400          1       e       2        hyper_threading
-#401          7       r       0        unused
+#400         8       r       0        reserved for century byte
 
 # coreboot config options: southbridge
 408          1       e       1        nmi
@@ -66,7 +64,11 @@ entries
 928          8       h       0        boot_default
 936          1       e       8        cmos_defaults_loaded
 937          1       e       1        lpt
-#938         46       r       0        unused
+#938         7       r       0        unused
+
+# coreboot config options: cpu
+944          1       e       2        hyper_threading
+#945         7       r       0        unused
 
 # coreboot config options: check sums
 984         16       h       0        check_sum
diff --git a/src/mainboard/lenovo/x200/cmos.layout b/src/mainboard/lenovo/x200/cmos.layout
index 5f50bd49419e..931cb4a52a2c 100644
--- a/src/mainboard/lenovo/x200/cmos.layout
+++ b/src/mainboard/lenovo/x200/cmos.layout
@@ -53,8 +53,7 @@ entries
 395           4       e       6        debug_level
 #399          1       r       0        unused
 
-# coreboot config options: EC
-400         8       h       0        volume
+#400          8       r       0        reserved for century byte
 
 # coreboot config options: southbridge
 408         1       e       10        sata_mode
@@ -80,7 +79,7 @@ entries
 # coreboot config options: northbridge
 941         3       e       11       gfx_uma_size
 
-#944          2       r       0        unused
+944         8       h       0        volume
 
 # coreboot config options: check sums
 984          16       h       0        check_sum
diff --git a/src/mainboard/lenovo/x201/cmos.layout b/src/mainboard/lenovo/x201/cmos.layout
index d231a11578b5..7d4aeae0b36f 100644
--- a/src/mainboard/lenovo/x201/cmos.layout
+++ b/src/mainboard/lenovo/x201/cmos.layout
@@ -52,7 +52,7 @@ entries
 395          4       e       6        debug_level
 #399         1       r       0        unused
 
-400          8       h       0        volume
+#400         8       r       0        reserved for century byte
 
 # coreboot config options: southbridge
 408          1       e       1        nmi
@@ -75,8 +75,8 @@ entries
 
 # coreboot config options: northbridge
 424         3       e       10       gfx_uma_size
-
-#427        557     r       0        unused
+#427         5       r       0       unused
+432          8       h       0        volume
 
 # coreboot config options: check sums
 984         16       h       0        check_sum
diff --git a/src/mainboard/lenovo/x220/cmos.layout b/src/mainboard/lenovo/x220/cmos.layout
index 8f147cc7e83f..ca2c45c93350 100644
--- a/src/mainboard/lenovo/x220/cmos.layout
+++ b/src/mainboard/lenovo/x220/cmos.layout
@@ -52,7 +52,7 @@ entries
 395          4       e       6        debug_level
 #399          1       r       0        unused
 
-400          8       h       0        volume
+#400         8       r       0        reserved for century byte
 
 # coreboot config options: southbridge
 408          1       e       1        nmi
@@ -78,6 +78,7 @@ entries
 # coreboot config options: northbridge
 432         3        e      11        gfx_uma_size
 #435        549       r       0        unused
+440         8       h       0        volume
 
 # SandyBridge MRC Scrambler Seed values
 896         32        r       0        mrc_scrambler_seed
diff --git a/src/mainboard/lenovo/x230/cmos.layout b/src/mainboard/lenovo/x230/cmos.layout
index e8cd140ad58a..29c20665e883 100644
--- a/src/mainboard/lenovo/x230/cmos.layout
+++ b/src/mainboard/lenovo/x230/cmos.layout
@@ -52,7 +52,7 @@ entries
 395          4       e       6        debug_level
 #399          1       r       0        unused
 
-400          8       h       0        volume
+#400         8       r       0        reserved for century byte
 
 # coreboot config options: southbridge
 408          1       e       1        nmi
@@ -77,7 +77,9 @@ entries
 
 # coreboot config options: northbridge
 432         3        e      11        gfx_uma_size
-#435        549       r       0        unused
+#435        5        r       0        unused
+
+440          8       h       0        volume
 
 # SandyBridge MRC Scrambler Seed values
 896         32        r       0        mrc_scrambler_seed
diff --git a/src/mainboard/lenovo/x60/cmos.layout b/src/mainboard/lenovo/x60/cmos.layout
index e267bb583348..54a279913f07 100644
--- a/src/mainboard/lenovo/x60/cmos.layout
+++ b/src/mainboard/lenovo/x60/cmos.layout
@@ -52,9 +52,7 @@ entries
 395          4       e       6        debug_level
 #399          1       r       0        unused
 
-# coreboot config options: cpu
-400          1       e       2        hyper_threading
-#401          7       r       0        unused
+#400         8       r       0        reserved for century byte
 
 # coreboot config options: southbridge
 408          1       e       1        nmi
@@ -66,7 +64,11 @@ entries
 928          8       h       0        boot_default
 936          1       e       8        cmos_defaults_loaded
 937          1       e       1        lpt
-#938         46       r       0        unused
+#938         6       r       0        unused
+
+# coreboot config options: cpu
+944          1       e       2        hyper_threading
+#945         7       r       0        unused
 
 # coreboot config options: check sums
 984         16       h       0        check_sum