topaz: Initial device configuration

Change-Id: Ie63f31ece78c3acb676faab94dc704dcf2b7ed28
Signed-off-by: ReStranger <restranger@disroot.org>
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..90c3d93
--- /dev/null
+++ b/README.md
@@ -0,0 +1,32 @@
+Copyright (C) 2025 The LineageOS Project
+
+Device configuration for Xiaomi Redmi Note 12 4G/12 4G NFC
+=========================================
+
+The Xiaomi Redmi Note 12 4G/12 4G NFC (codenamed _"tapas/topaz"_) is a mid-range smartphone from Xiaomi.
+
+Redmi Note 12 4G was announced and released in March 2023.
+
+## Device specifications
+
+| Device       | Xiaomi Redmi Note 12 4G                              |
+| -----------: | :-------------------------------------------------- |
+| SoC          | Qualcomm SM6225 Snapdragon 685 (6 nm)                      |
+| CPU          | 4x2.8 GHz Cortex-A73 & 4x1.9 GHz Cortex-A53 |
+| GPU          | Adreno 610                                          |
+| Memory       | 4GB/6GB/8GB RAM (LPDDR4X)                               |
+| Storage      | 64GB/128GB/256GB UFS 2.2 flash storage                    |
+| Shipped Android version | 13.0 with MIUI 14                        |
+| Battery      | Non-removable Li-Po 5000 mAh                        |
+| Dimensions   | 165.7 x 76 x 7.9 mm                               |
+| Display      | 1080 x 2400 pixels, 20:9 ratio 6.67" inch           |
+| Type         | AMOLED, 120Hz, 450 nits (typ), 700 nits (HBM), 1200 nits (peak)      |
+| NFC         | Yes ( Redmi Note 12 4G NFC )                            |
+| Rear camera 1 | 50 MP, f/1.8, (wide), 1/2.76", 0.64µm, PDAF     |
+| Rear camera 2 | 8 MP, f/2.2, 120˚ (ultrawide), 1/4", 1.12µm      |
+| Rear camera 3 | 2 MP, f/2.4, (macro)                               |
+| Front camera  | 13 MP, f/2.5, (wide), 1/3.0"                    |
+
+## Device picture
+
+![Xiaomi Redmi Note 12 4G](https://i02.appmifile.com/224_operator_sg/10/03/2023/cdf4a7f40a92668d1c8fe2fcc5045ea8.png)