1 S3C2412 ARM Linux Overview 2 ========================== 3 4Introduction 5------------ 6 7 The S3C2412 is part of the S3C24XX range of ARM9 System-on-Chip CPUs 8 from Samsung. This part has an ARM926-EJS core, capable of running up 9 to 266MHz (see data-sheet for more information) 10 11 12Clock 13----- 14 15 The core clock code provides a set of clocks to the drivers, and allows 16 for source selection and a number of other features. 17 18 19Power 20----- 21 22 No support for suspend/resume to RAM in the current system. 23 24 25DMA 26--- 27 28 No current support for DMA. 29 30 31GPIO 32---- 33 34 There is support for setting the GPIO to input/output/special function 35 and reading or writing to them. 36 37 38UART 39---- 40 41 The UART hardware is similar to the S3C2440, and is supported by the 42 s3c2410 driver in the drivers/serial directory. 43 44 45NAND 46---- 47 48 The NAND hardware is similar to the S3C2440, and is supported by the 49 s3c2410 driver in the drivers/mtd/nand directory. 50 51 52USB Host 53-------- 54 55 The USB hardware is similar to the S3C2410, with extended clock source 56 control. The OHCI portion is supported by the ohci-s3c2410 driver, and 57 the clock control selection is supported by the core clock code. 58 59 60USB Device 61---------- 62 63 No current support in the kernel 64 65 66IRQs 67---- 68 69 All the standard, and external interrupt sources are supported. The 70 extra sub-sources are not yet supported. 71 72 73RTC 74--- 75 76 The RTC hardware is similar to the S3C2410, and is supported by the 77 s3c2410-rtc driver. 78 79 80Watchdog 81-------- 82 83 The watchdog hardware is the same as the S3C2410, and is supported by 84 the s3c2410_wdt driver. 85 86 87MMC/SD/SDIO 88----------- 89 90 No current support for the MMC/SD/SDIO block. 91 92IIC 93--- 94 95 The IIC hardware is the same as the S3C2410, and is supported by the 96 i2c-s3c24xx driver. 97 98 99IIS 100--- 101 102 No current support for the IIS interface. 103 104 105SPI 106--- 107 108 No current support for the SPI interfaces. 109 110 111ATA 112--- 113 114 No current support for the on-board ATA block. 115 116 117Document Author 118--------------- 119 120Ben Dooks, (c) 2006 Simtec Electronics 121