From f925326357adc920b370c0d47c76272bcdb8cec9 Mon Sep 17 00:00:00 2001
From: Evgeny Zinoviev <me@ch1p.io>
Date: Tue, 9 Feb 2021 19:43:30 +0300
Subject: initial

---
 get_mbp101_ramcfg | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100755 get_mbp101_ramcfg

diff --git a/get_mbp101_ramcfg b/get_mbp101_ramcfg
new file mode 100755
index 0000000..0eef4e5
--- /dev/null
+++ b/get_mbp101_ramcfg
@@ -0,0 +1,50 @@
+#!/usr/bin/env python3
+import sys
+
+
+ramconfigs = (
+    '4g_hynix_1600s',
+    '1g_samsung_1600',
+    '4g_samsung_1600s',
+    '1g_hynix_1600',
+    '4g_elpida_1600s',
+    '2g_samsung_1600',
+    '2g_samsung_1333',
+    '2g_hynix_1600',
+    '4g_samsung_1600',
+    '4g_hynix_1600',
+    '2g_elpida_1600s',
+    '2g_elpida_1600',
+    '4g_elpida_1600',
+    '2g_samsung_1600s',
+    '2g_hynix_1600s'
+)
+
+
+def main():
+    reg = None
+    for line in sys.stdin:
+        line = line.strip()
+        if not line.endswith('(GPIO_LVL3)'):
+            continue
+
+        reg = int(line.split(' ')[1], 16)
+        break
+
+    if reg is None:
+        raise Exceptions("failed to parse gpio registers")
+
+    # GPIO68..GPIO71
+    ramcfg = (reg >> 4) & 0xf
+
+    # reverse bit order
+    ramcfg = int('{:04b}'.format(ramcfg)[::-1], 2)
+
+    if ramcfg > len(ramconfigs):
+        print("unsupported memory configuration %d" % ramcfg)
+    else:
+        print(ramconfigs[ramcfg])
+        
+
+if __name__ == '__main__':
+    main()
-- 
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