Change in ...coreboot[master]: mb/intel/icelake_rvp: Configure eSPI IO decode range for EC

[Aamir Bohra (Code Review)]

Hello Subrata Banik,

I'd like you to do a code review. Please visit

https://review.coreboot.org/c/coreboot/+/29764

to review the following change.

Change subject: mb/intel/icelake_rvp: Configure eSPI IO decode range for EC
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mb/intel/icelake_rvp: Configure eSPI IO decode range for EC

This implementation adds eSPI IO decode range for EC.
1. 0x800-0x8FF / 0x200-020F: EC host command range.
2. 0x900-0x9ff: EC memory map range.

Change-Id: I69e6b3a83c072036c5b3ae801f8d80dfda82478e
Signed-off-by: Subrata Banik 
Signed-off-by: Aamir Bohra 
---
M src/mainboard/intel/icelake_rvp/variants/icl_u/devicetree.cb
M src/mainboard/intel/icelake_rvp/variants/icl_y/devicetree.cb
2 files changed, 12 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/64/29764/1

diff --git a/src/mainboard/intel/icelake_rvp/variants/icl_u/devicetree.cb b/src/mainboard/intel/icelake_rvp/variants/icl_u/devicetree.cb
index fb39b60..a57d91a 100644
--- a/src/mainboard/intel/icelake_rvp/variants/icl_u/devicetree.cb
+++ b/src/mainboard/intel/icelake_rvp/variants/icl_u/devicetree.cb
@@ -27,6 +27,12 @@
    register "usb3_ports[4]" = "USB3_PORT_DEFAULT(OC0)"
    register "usb3_ports[5]" = "USB3_PORT_DEFAULT(OC0)"

+	# EC host command ranges are in 0x800-0x8ff & 0x200-0x20f
+	register "gen1_dec" = "0x00fc0801"
+	register "gen2_dec" = "0x000c0201"
+	# EC memory map range is 0x900-0x9ff
+	register "gen3_dec" = "0x00fc0901"
+
    register "PchHdaDspEnable" = "1"
    register "PchHdaAudioLinkHda" = "1"

diff --git a/src/mainboard/intel/icelake_rvp/variants/icl_y/devicetree.cb b/src/mainboard/intel/icelake_rvp/variants/icl_y/devicetree.cb
index b3a7826..f8fbfb4 100644
--- a/src/mainboard/intel/icelake_rvp/variants/icl_y/devicetree.cb
+++ b/src/mainboard/intel/icelake_rvp/variants/icl_y/devicetree.cb
@@ -27,6 +27,12 @@
    register "usb3_ports[4]" = "USB3_PORT_DEFAULT(OC0)"
    register "usb3_ports[5]" = "USB3_PORT_DEFAULT(OC0)"

+	# EC host command ranges are in 0x800-0x8ff & 0x200-0x20f
+	register "gen1_dec" = "0x00fc0801"
+	register "gen2_dec" = "0x000c0201"
+	# EC memory map range is 0x900-0x9ff
+	register "gen3_dec" = "0x00fc0901"
+
    register "PchHdaDspEnable" = "1"
    register "PchHdaAudioLinkHda" = "1"
    register "PchHdaAudioLinkSsp0" = "1"