i.MX Reference Manual - NXP

1 Reference Manual Document Number: IMXLXRM. Rev. , 05/2018. Reference Manual , Rev. , 05/2018. 2 NXP Semiconductors Contents Section number Title Page Chapter 1. Introduction Software 33. 34. 37. 38. Definitions, Acronyms, and Chapter 2. System Machine-Specific Layer (MSL)..43. 43. Interrupts (Operation).. 44. Interrupt Hardware 44. Interrupt Software Operation (only for 6 or 7).. 44. Interrupt 45. Interrupt Source Code 45. Interrupt Programming 45. 45. Timer Software 46. Timer 46. Timer Programming Memory Memory Map Hardware Memory Map Software Operation (only for 6 or 7).. 47. Memory Map 47. Memory Map Source Code Structure (only for 6 or 7).. 47. 48. Reference Manual , Rev. , 05/2018. NXP Semiconductors 3. Section number Title Page IOMUX Hardware 49. IOMUX Software IOMUX IOMUX Source Code 49. IOMUX Programming 50. IOMUX Control Through GPIO 51. GPIO Hardware 51. Muxing 51. PULLUP GPIO Software Operation (general).

2 52. GPIO General Purpose Input/Output(GPIO).. 52. GPIO Software 52. API for 52. GPIO GPIO Module Source Code GPIO Programming Interface 53. Anatop Regulator Driver (only for 6 or 7)..53. 54. Hardware 54. Software 54. Driver Driver Interface Regulator 55. Source Code 56. Menu Configuration 56. Power 56. Low Level Power Management (PM)..56. Hardware 56. Reference Manual , Rev. , 05/2018. 4 NXP Semiconductors Section number Title Page Software 57. Source Code 59. Menu Configuration 59. Programming 60. PMIC PF 60. Hardware Software 61. Driver Regulator Driver 62. Driver Interface Source Code 64. Menu Configuration 64. CPU Frequency Scaling (CPUFREQ).. 64. 65. Software 65. Source Code 66. Menu Configuration 66. Dynamic Bus 67. 67. Software 68. Source Code 69. Menu Configuration 70. Battery 70. 70. Software 70. Source Code 70. Reference Manual , Rev. , 05/2018. NXP Semiconductors 5. Section number Title Page Menu Configuration 70.

3 70. 71. 71. Hardware 71. Architecture-specific oprofilefs Pseudo 72. Generic Kernel OProfile 73. Post Profiling 73. Interrupt 73. Software 74. 74. Source Code 74. Menu Configuration 74. Programming 74. Example Software Pulse-Width Modulator (PWM).. 75. 75. Hardware 76. Software 77. Driver Source Code 78. Menu Configuration 78. Remote Processor 78. 78. 80. Reference Manual , Rev. , 05/2018. 6 NXP Semiconductors Section number Title Page Source 80. Kernel Running RPMsg Test 81. 83. 83. Thermal Driver 83. Hardware 84. Thermal Driver Software 84. Driver Source Code 84. Menu Configuration 84. Programming 85. 85. 85. Hardware 85. Sensor Driver Software 85. Source Code 86. Menu Configuration 86. Watchdog (WDOG).. 86. 86. Hardware 86. Software 86. Generic Driver Source Code 87. Menu Configuration 87. Programming 88. Chapter 3. Storage Reference Manual , Rev. , 05/2018. NXP Semiconductors 7. Section number Title Page AHB-to-APBH Bridge with DMA (APBH-Bridge-DMA).

4 89. 89. Hardware 89. Software 90. Source Code 90. Menu Configuration 91. Programming 91. Usage 91. EIM 91. Hardware 91. Software 91. Source 92. Enabling the EIM MMC/SD/SDIO 92. 92. Hardware 92. NAND GPMI 93. 93. Hardware 94. Software 94. Basic Operations: Backward 95. Error 96. Boot Control Block 96. Bad Block Source Code 97. Menu Configuration 97. Quad Serial Peripheral Interface (QuadSPI) ..98. Reference Manual , Rev. , 05/2018. 8 NXP Semiconductors Section number Title Page 98. Hardware 98. Software 99. Driver Source Code 100. Menu Configuration 100. 100. 100. Board Configuration Software 100. Source Code Structure 101. Menu Configuration 101. Programming 102. Usage 102. Usage 103. Smart Direct Memory Access (SDMA) 104. 104. Hardware 104. Software 104. Source Code 105. SPI NOR Flash Memory Technology Device (MTD)..106. 106. Hardware 106. Software 106. Driver Source Code 107. Menu Configuration 108.

5 Chapter 4. Connectivity Reference Manual , Rev. , 05/2018. NXP Semiconductors 9. Section number Title Page 109. ADC 109. ADC External 109. ADC Driver 110. ADC Driver Menu Configuration 110. Programming 111. Bluetooth QCA9377-3 and Bluetooth Wireless Technology 111. 111. Software 112. Bluetooth Driver Bluetooth Driver Bluetooth 112. Menu Configuration 113. ENET 113. 113. Transmit 114. Receive Software 115. Source Code 115. Menu Configuration 115. Programming 116. 1588 Stack 116. 1588 Stack 116. Linuxptp Stack How to Use the Stacks in Linux 116. Enhanced Configurable Serial Peripheral Interface (ECSPI).. 117. 117. Reference Manual , Rev. , 05/2018. 10 NXP Semiconductors Section number Title Page Hardware 117. Software 118. SPI Sub-System in Linux Software Standard 119. ECSPI Synchronous 120. Driver Source Code 120. Menu Configuration 121. Programming 121. Interrupt 121. Fast Ethernet Controller (FEC).

6 122. 122. Hardware 122. Software 124. Source Code 125. Menu Configuration 125. Programming 125. Device-Specific Getting a MAC 127. 127. Hardware 127. Software 127. Source Code 128. Menu Configuration 128. Inter-IC (I2C).. 129. 129. LPI2C Bus Driver Reference Manual , Rev. , 05/2018. NXP Semiconductors 11. Section number Title Page I2C Device Driver 130. Software 130. I2C Bus Driver Software I2C Device Driver Software 131. Driver Source Code 131. Menu Configuration 131. Programming 132. Media Local 132. 132. MLB Device 132. Supported MLB Driver MLB MLB Driver Software 136. Driver 137. Menu Configuration 137. PCI Express Root 137. 137. Terminology and PCIe Topology on 141. Linux OS PCI Subsystem and RC RC Driver Source 142. System Resource: Memory System Resource: Interrupt 144. Reference Manual , Rev. , 05/2018. 12 NXP Semiconductors Section number Title Page 144. Architectural Hardware 146. Software 146.

7 Source Code 147. Menu Configuration 147. USB Wakeup How to Close the USB Child Device Changing the Controller Operation 148. Loadable Module USB Charger 149. Embeded Host Adding TPL-Support VBUS Low Power Universal Asynchronous Receiver/Transmitter (LPUART).. 150. 150. Hardware 151. Software 152. Driver Source Code 153. 153. Configuration Source Code Configuration 153. Programming 154. Interrupt 154. Wi-Fi Hardware 154. Software 154. Driver Reference Manual , Rev. , 05/2018. NXP Semiconductors 13. Section number Title Page Source Code 155. Menu Configuration 155. Device Tree 155. Configuring WLAN from User 156. Connecting AP in Station 156. Obtaining an IP 156. 156. Supported Chapter 5. Graphics Graphics Processing Unit (GPU).. 159. 159. Driver Hardware 160. Software 160. Source Code Structure .. 161. Library Structure .. 161. API 163. Menu Configuration 163. 163. 164. Hardware 164. Software 164.

8 Yocto Build 164. Customizing 164. Multi display supported in 165. Multi buffer supported in Running Reference Manual , Rev. , 05/2018. 14 NXP Semiconductors Section number Title Page X Windows 166. Hardware 166. Software 166. X-Windows Acceleration Driver for X-Windows Direct Rendering Infrastructure (DRI) for X-Windows 170. EGL- X for 172. Setup X-Windows System Acceleration on 174. Setup X Window System Acceleration ..175. Troubleshooting .. 176. Chapter 6. Video OmniVision 179. OV5640 Using MIPI CSI-2 179. Hardware Software 180. Source Code 180. Menu Configuration 180. OV5642 Using parallel 181. Hardware Software 181. Source Code 182. Menu Configuration 182. Camera Serial Interface (CSI) ..182. 182. Hardware Reference Manual , Rev. , 05/2018. NXP Semiconductors 15. Section number Title Page CSI Software Video for Linux 2 (V4L2) 183. V4L2 Capture Use of the V4L2 Capture Source Code 184. Menu Configuration 184.

9 MIPI Camera Serial Interface (MIPI CSI) .. 185. 185. MIPI CSI2 Driver Hardware Software 186. MIPI CSI2 Driver Initialize 186. MIPI CSI2 Common API 187. Driver Source Code 188. Menu Configuration 188. Programming 188. 189. Display Processing Unit (DPU) .. 189. Introduction .. 189. Source Code 189. Menu Configuration 190. Image Processing Unit (IPU).. 190. 190. Hardware Software 192. IPU Frame Buffer Drivers IPU Frame Buffer Hardware 194. IPU Frame Buffer Software Reference Manual , Rev. , 05/2018. 16 NXP Semiconductors Section number Title Page Synchronous Frame Buffer 195. IPU Backlight 196. IPU Device 196. Source Code Structure .. 197. Menu Configuration 198. Unit Framebuffer 201. Video4 Linux API 202. IPU Device Unit 203. LVDS Display Bridge(LDB).. 207. 207. Hardware Software 207. Source Code 208. Menu Configuration 208. LVDS .. 208. 208. Software Operation .. 209. Source Code 209. Menu Configuration 209.

10 Pixel Pipeline (PxP).. 210. 210. Hardware Software 210. Key Data 210. Channel 211. Descriptor Completion 211. 212. Reference Manual , Rev. , 05/2018. NXP Semiconductors 17. Section number Title Page Menu Configuration 212. Source Code 212. Frame 212. Electrophoretic Display Controller (EPDC).. 213. Hardware 213. Software 213. EPDC Frame Buffer Driver 214. EPDC Frame Buffer Driver 214. EPDC Panel EPDC Waveform 216. EPDC Panel Grayscale Framebuffer 218. Enabling an EPDC Splash 218. Source Code Structure ..219. Menu Configuration Programming ELCDIF Frame Buffer .. 225. Hardware 225. Software 225. Menu Configuration Source Code High-Definition Multimedia Interface (HDMI) 226. Software 226. 226. Display Device Registration and 227. Hotplug Handling and Video Mode 228. Reference Manual , Rev. , 05/2018. 18 NXP Semiconductors Section number Title Page 229. 6 On Chip High-Definition Multimedia Interface (HDMI).