commit 2c9e1a9253eb58a1aa8c6070cea9581eaff7768b
author Timothy Chen <timothytim@google.com> Mon Jun 29 15:03:25 2020 -0700
committer tjaychen <timothytim@google.com> Tue Jun 30 14:17:28 2020 -0700
tree c555e6ca62d4d6fa74b46cfcee3839b305bbf393
parent 4eb1312e3bdc4e3cbecbe29051779da536f66ed6

[top] Add retention ram

- connected to xbar_peri right now, but should be a different path
  in the future

Signed-off-by: Timothy Chen <timothytim@google.com>

hw/top_earlgrey/data/top_earlgrey.hjson

diff --git a/hw/top_earlgrey/data/top_earlgrey.hjson b/hw/top_earlgrey/data/top_earlgrey.hjson
index 86c69f1..02ac15f 100644
--- a/hw/top_earlgrey/data/top_earlgrey.hjson
+++ b/hw/top_earlgrey/data/top_earlgrey.hjson
@@ -267,6 +267,14 @@
       type: "ram_1p",
       base_addr: "0x10000000",
       size: "0x10000" },
+
+    { name: "ram_ret",
+      clock_srcs: {clk_i: "io"},
+      clock_group: "infra",
+      reset_connections: {rst_ni: "sys_io"},
+      type: "ram_1p",
+      base_addr: "0x18000000",
+      size: "0x1000" },
     { name: "eflash",
       clock_srcs: {clk_i: "main"},
       clock_group: "infra",

hw/top_earlgrey/data/xbar_peri.hjson

diff --git a/hw/top_earlgrey/data/xbar_peri.hjson b/hw/top_earlgrey/data/xbar_peri.hjson
index 7294aeb..9ab6308 100644
--- a/hw/top_earlgrey/data/xbar_peri.hjson
+++ b/hw/top_earlgrey/data/xbar_peri.hjson
@@ -59,9 +59,16 @@
       clock:     "clk_peri_i",
       reset:     "rst_peri_ni",
       pipeline: "false"
-    }
+    },
+    { name:      "ram_ret",
+      type:      "device",
+      clock:     "clk_peri_i",
+      reset:     "rst_peri_ni",
+      pipeline:  "false",
+    },
   ],
   connections: {
-    main:  ["uart", "gpio", "spi_device", "rv_timer", "usbdev", "pwrmgr", "rstmgr", "clkmgr"],
+    main:  ["uart", "gpio", "spi_device", "rv_timer", "usbdev", "pwrmgr", "rstmgr", "clkmgr",
+            "ram_ret"],
   },
 }