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authorKarthikeyan Ramasubramanian <kramasub@google.com>2020-04-20 11:37:52 -0600
committerPatrick Georgi <pgeorgi@google.com>2020-05-01 06:15:26 +0000
commit8d09cf61860e743b35a9158163654c8d2bd3c189 (patch)
treecb1b278ffa89d1b0b198e9fe2cbeebf78cc465ea /src/mainboard/google/dedede/variants/baseboard/include
parentf60a8f02c5d6eed7249a4e60c1d6df373d047eb0 (diff)
mb/google/dedede: Remove pad termination for RAM_STRAP_4
The stuffed resistor straps are weaker compared to the internal pull-up. This can cause the GPIO to read '1' always. Remove the internal pull-up. Also read the GPIO only on the boards where the board version is populated. BUG=b:154301008 TEST=Build and boot the mainboard. Change-Id: Ib640211b9f50dfb0174a570eda1625bacbebb855 Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40531 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/mainboard/google/dedede/variants/baseboard/include')
-rw-r--r--src/mainboard/google/dedede/variants/baseboard/include/baseboard/variants.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/mainboard/google/dedede/variants/baseboard/include/baseboard/variants.h b/src/mainboard/google/dedede/variants/baseboard/include/baseboard/variants.h
index 8fd5119bd4..48c1419617 100644
--- a/src/mainboard/google/dedede/variants/baseboard/include/baseboard/variants.h
+++ b/src/mainboard/google/dedede/variants/baseboard/include/baseboard/variants.h
@@ -33,4 +33,11 @@ const struct mb_cfg *variant_memcfg_config(void);
/* Return memory SKU for the variant */
int variant_memory_sku(void);
+/**
+ * Get data whether memory channel is half-populated or not
+ *
+ * @return false on boards where memory channel is half-populated, true otherwise.
+ */
+bool variant_mem_is_half_populated(void);
+
#endif /*__BASEBOARD_VARIANTS_H__ */