From 6947fc91286a5f4b88d2072d80859fba13fd47ed Mon Sep 17 00:00:00 2001
From: htfab <mpw@htamas.net>
Date: Tue, 24 Sep 2024 22:37:05 +0200
Subject: [PATCH] feat: add experimental IHP support

---
 .github/workflows/docs.yaml |  2 +-
 .github/workflows/gds.yaml  | 40 ++++++++++-----------
 src/config.json             | 70 ++++---------------------------------
 3 files changed, 26 insertions(+), 86 deletions(-)

diff --git a/.github/workflows/docs.yaml b/.github/workflows/docs.yaml
index 8aae962..383350d 100644
--- a/.github/workflows/docs.yaml
+++ b/.github/workflows/docs.yaml
@@ -14,4 +14,4 @@ jobs:
           submodules: recursive
 
       - name: Build docs
-        uses: TinyTapeout/tt-gds-action/docs@tt09
+        uses: htfab/tt-gds-action/docs@tt09
diff --git a/.github/workflows/gds.yaml b/.github/workflows/gds.yaml
index cb22e45..e1d1950 100644
--- a/.github/workflows/gds.yaml
+++ b/.github/workflows/gds.yaml
@@ -14,28 +14,26 @@ jobs:
           submodules: recursive
 
       - name: Build GDS
-        uses: TinyTapeout/tt-gds-action@tt09
-        with:
-          flow: openlane2
-
-  precheck:
-    needs: gds
-    runs-on: ubuntu-latest
-    steps:
-      - name: Run Tiny Tapeout Precheck
-        uses: TinyTapeout/tt-gds-action/precheck@tt09
+        uses: htfab/tt-gds-action/orfs@tt09
 
-  gl_test:
-    needs: gds
-    runs-on: ubuntu-latest
-    steps:
-      - name: checkout repo
-        uses: actions/checkout@v4
-        with:
-          submodules: recursive
+  #precheck:
+  #  needs: gds
+  #  runs-on: ubuntu-latest
+  #  steps:
+  #    - name: Run Tiny Tapeout Precheck
+  #      uses: TinyTapeout/tt-gds-action/precheck@tt09
 
-      - name: GL test
-        uses: TinyTapeout/tt-gds-action/gl_test@tt09
+  #gl_test:
+  #  needs: gds
+  #  runs-on: ubuntu-latest
+  #  steps:
+  #    - name: checkout repo
+  #      uses: actions/checkout@v4
+  #      with:
+  #        submodules: recursive
+  #
+  #    - name: GL test
+  #      uses: TinyTapeout/tt-gds-action/gl_test@tt09
 
   viewer:
     needs: gds
@@ -44,4 +42,4 @@ jobs:
       pages: write      # to deploy to Pages
       id-token: write   # to verify the deployment originates from an appropriate source
     steps:
-      - uses: TinyTapeout/tt-gds-action/viewer@tt09
+      - uses: htfab/tt-gds-action/viewer@tt09
diff --git a/src/config.json b/src/config.json
index 3fc2ed6..e30c9fe 100644
--- a/src/config.json
+++ b/src/config.json
@@ -11,74 +11,16 @@
 
   "//": "Here are some of the variables you may want to change:",
 
-  "//": "PL_TARGET_DENSITY_PCT - You can increase this if Global Placement fails with error GPL-0302.",
-  "//": "Users have reported that values up to 80 worked well for them.",
-  "PL_TARGET_DENSITY_PCT": 60,
+  "PLACE_DENSITY": 0.6,
+  "TNS_END_PERCENT": 100,
 
-  "//": "CLOCK_PERIOD - Increase this in case you are getting setup time violations.",
-  "//": "The value is in nanoseconds, so 20ns == 50MHz.",
-  "CLOCK_PERIOD": 20,
-
-  "//": "Hold slack margin - Increase them in case you are getting hold violations.",
-  "PL_RESIZER_HOLD_SLACK_MARGIN": 0.1,
-  "GRT_RESIZER_HOLD_SLACK_MARGIN": 0.05,
-
-  "//": "RUN_LINTER, LINTER_INCLUDE_PDK_MODELS - Disabling the linter is not recommended!",
-  "RUN_LINTER": 1,
-  "LINTER_INCLUDE_PDK_MODELS": 1,
-
-  "//": "If you need a custom clock configuration, read the following documentation first:",
-  "//": "https://tinytapeout.com/faq/#how-can-i-map-an-additional-external-clock-to-one-of-the-gpios",
-  "CLOCK_PORT": "clk",
-
-  "//": "Configuration docs: https://openlane.readthedocs.io/en/latest/reference/configuration.html",
+  "//": "Configuration docs: https://openroad-flow-scripts.readthedocs.io/en/latest/user/FlowVariables.html",
 
   "//": "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!",
   "//": "!!! DO NOT CHANGE ANYTHING BELOW THIS POINT !!!",
   "//": "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!",
 
-  "//": "Save some time",
-  "RUN_KLAYOUT_XOR": 0,
-  "RUN_KLAYOUT_DRC": 0,
-
-  "//": "Don't put clock buffers on the outputs",
-  "DESIGN_REPAIR_BUFFER_OUTPUT_PORTS": 0,
-
-  "//": "Reduce wasted space",
-  "TOP_MARGIN_MULT": 1,
-  "BOTTOM_MARGIN_MULT": 1,
-  "LEFT_MARGIN_MULT": 6,
-  "RIGHT_MARGIN_MULT": 6,
-
-  "//": "Absolute die size",
-  "FP_SIZING": "absolute",
-
-  "GRT_ALLOW_CONGESTION": 1,
-
-  "FP_IO_HLENGTH": 2,
-  "FP_IO_VLENGTH": 2,
-
-  "FP_PDN_VPITCH": 38.87,
-
-  "//": "Use alternative efabless decap cells to solve LI density issue",
-  "DECAP_CELL": [
-    "sky130_fd_sc_hd__decap_3",
-    "sky130_fd_sc_hd__decap_4",
-    "sky130_fd_sc_hd__decap_6",
-    "sky130_fd_sc_hd__decap_8",
-    "sky130_ef_sc_hd__decap_12"
-  ],
-
-  "//": "Clock",
-  "RUN_CTS": 1,
-
-  "//": "Don't use power rings or met5 layer",
-  "FP_PDN_MULTILAYER": 0,
-  "RT_MAX_LAYER": "met4",
-
-  "//": "MAGIC_DEF_LABELS may cause issues with LVS",
-  "MAGIC_DEF_LABELS": 0,
-
-  "//": "Only export pin area in LEF (without any connected nets)",
-  "MAGIC_WRITE_LEF_PINONLY": 1
+  "//": "Power nets for IR drop analysis",
+  "PWR_NETS_VOLTAGES": "{VPWR 1.2}",
+  "GND_NETS_VOLTAGES": "{VGND 0.0}"
 }