162306a36Sopenharmony_ci======================== 262306a36Sopenharmony_ciKernel driver scx200_acb 362306a36Sopenharmony_ci======================== 462306a36Sopenharmony_ci 562306a36Sopenharmony_ciAuthor: Christer Weinigel <wingel@nano-system.com> 662306a36Sopenharmony_ci 762306a36Sopenharmony_ciThe driver supersedes the older, never merged driver named i2c-nscacb. 862306a36Sopenharmony_ci 962306a36Sopenharmony_ciModule Parameters 1062306a36Sopenharmony_ci----------------- 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_ci* base: up to 4 ints 1362306a36Sopenharmony_ci Base addresses for the ACCESS.bus controllers on SCx200 and SC1100 devices 1462306a36Sopenharmony_ci 1562306a36Sopenharmony_ci By default the driver uses two base addresses 0x820 and 0x840. 1662306a36Sopenharmony_ci If you want only one base address, specify the second as 0 so as to 1762306a36Sopenharmony_ci override this default. 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_ciDescription 2062306a36Sopenharmony_ci----------- 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_ciEnable the use of the ACCESS.bus controller on the Geode SCx200 and 2362306a36Sopenharmony_ciSC1100 processors and the CS5535 and CS5536 Geode companion devices. 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_ciDevice-specific notes 2662306a36Sopenharmony_ci--------------------- 2762306a36Sopenharmony_ci 2862306a36Sopenharmony_ciThe SC1100 WRAP boards are known to use base addresses 0x810 and 0x820. 2962306a36Sopenharmony_ciIf the scx200_acb driver is built into the kernel, add the following 3062306a36Sopenharmony_ciparameter to your boot command line:: 3162306a36Sopenharmony_ci 3262306a36Sopenharmony_ci scx200_acb.base=0x810,0x820 3362306a36Sopenharmony_ci 3462306a36Sopenharmony_ciIf the scx200_acb driver is built as a module, add the following line to 3562306a36Sopenharmony_cia configuration file in /etc/modprobe.d/ instead:: 3662306a36Sopenharmony_ci 3762306a36Sopenharmony_ci options scx200_acb base=0x810,0x820 38