1========================== 2S3C2412 ARM Linux Overview 3========================== 4 5Introduction 6------------ 7 8 The S3C2412 is part of the S3C24XX range of ARM9 System-on-Chip CPUs 9 from Samsung. This part has an ARM926-EJS core, capable of running up 10 to 266MHz (see data-sheet for more information) 11 12 13Clock 14----- 15 16 The core clock code provides a set of clocks to the drivers, and allows 17 for source selection and a number of other features. 18 19 20Power 21----- 22 23 No support for suspend/resume to RAM in the current system. 24 25 26DMA 27--- 28 29 No current support for DMA. 30 31 32GPIO 33---- 34 35 There is support for setting the GPIO to input/output/special function 36 and reading or writing to them. 37 38 39UART 40---- 41 42 The UART hardware is similar to the S3C2440, and is supported by the 43 s3c2410 driver in the drivers/serial directory. 44 45 46NAND 47---- 48 49 The NAND hardware is similar to the S3C2440, and is supported by the 50 s3c2410 driver in the drivers/mtd/nand/raw directory. 51 52 53USB Host 54-------- 55 56 The USB hardware is similar to the S3C2410, with extended clock source 57 control. The OHCI portion is supported by the ohci-s3c2410 driver, and 58 the clock control selection is supported by the core clock code. 59 60 61USB Device 62---------- 63 64 No current support in the kernel 65 66 67IRQs 68---- 69 70 All the standard, and external interrupt sources are supported. The 71 extra sub-sources are not yet supported. 72 73 74RTC 75--- 76 77 The RTC hardware is similar to the S3C2410, and is supported by the 78 s3c2410-rtc driver. 79 80 81Watchdog 82-------- 83 84 The watchdog hardware is the same as the S3C2410, and is supported by 85 the s3c2410_wdt driver. 86 87 88MMC/SD/SDIO 89----------- 90 91 No current support for the MMC/SD/SDIO block. 92 93IIC 94--- 95 96 The IIC hardware is the same as the S3C2410, and is supported by the 97 i2c-s3c24xx driver. 98 99 100IIS 101--- 102 103 No current support for the IIS interface. 104 105 106SPI 107--- 108 109 No current support for the SPI interfaces. 110 111 112ATA 113--- 114 115 No current support for the on-board ATA block. 116 117 118Document Author 119--------------- 120 121Ben Dooks, Copyright 2006 Simtec Electronics 122