18c2ecf20Sopenharmony_ci 28c2ecf20Sopenharmony_ciIBM Akebono board device tree 38c2ecf20Sopenharmony_ci============================= 48c2ecf20Sopenharmony_ci 58c2ecf20Sopenharmony_ciThe IBM Akebono board is a development board for the PPC476GTR SoC. 68c2ecf20Sopenharmony_ci 78c2ecf20Sopenharmony_ci0) The root node 88c2ecf20Sopenharmony_ci 98c2ecf20Sopenharmony_ci Required properties: 108c2ecf20Sopenharmony_ci 118c2ecf20Sopenharmony_ci - model : "ibm,akebono". 128c2ecf20Sopenharmony_ci - compatible : "ibm,akebono" , "ibm,476gtr". 138c2ecf20Sopenharmony_ci 148c2ecf20Sopenharmony_ci1.a) The Secure Digital Host Controller Interface (SDHCI) node 158c2ecf20Sopenharmony_ci 168c2ecf20Sopenharmony_ci Represent the Secure Digital Host Controller Interfaces. 178c2ecf20Sopenharmony_ci 188c2ecf20Sopenharmony_ci Required properties: 198c2ecf20Sopenharmony_ci 208c2ecf20Sopenharmony_ci - compatible : should be "ibm,476gtr-sdhci","generic-sdhci". 218c2ecf20Sopenharmony_ci - reg : should contain the SDHCI registers location and length. 228c2ecf20Sopenharmony_ci - interrupts : should contain the SDHCI interrupt. 238c2ecf20Sopenharmony_ci 248c2ecf20Sopenharmony_ci1.b) The Advanced Host Controller Interface (AHCI) SATA node 258c2ecf20Sopenharmony_ci 268c2ecf20Sopenharmony_ci Represents the advanced host controller SATA interface. 278c2ecf20Sopenharmony_ci 288c2ecf20Sopenharmony_ci Required properties: 298c2ecf20Sopenharmony_ci 308c2ecf20Sopenharmony_ci - compatible : should be "ibm,476gtr-ahci". 318c2ecf20Sopenharmony_ci - reg : should contain the AHCI registers location and length. 328c2ecf20Sopenharmony_ci - interrupts : should contain the AHCI interrupt. 338c2ecf20Sopenharmony_ci 348c2ecf20Sopenharmony_ci1.c) The FPGA node 358c2ecf20Sopenharmony_ci 368c2ecf20Sopenharmony_ci The Akebono board stores some board information such as the revision 378c2ecf20Sopenharmony_ci number in an FPGA which is represented by this node. 388c2ecf20Sopenharmony_ci 398c2ecf20Sopenharmony_ci Required properties: 408c2ecf20Sopenharmony_ci 418c2ecf20Sopenharmony_ci - compatible : should be "ibm,akebono-fpga". 428c2ecf20Sopenharmony_ci - reg : should contain the FPGA registers location and length. 438c2ecf20Sopenharmony_ci 448c2ecf20Sopenharmony_ci1.d) The AVR node 458c2ecf20Sopenharmony_ci 468c2ecf20Sopenharmony_ci The Akebono board has an Atmel AVR microprocessor attached to the I2C 478c2ecf20Sopenharmony_ci bus as a power controller for the board. 488c2ecf20Sopenharmony_ci 498c2ecf20Sopenharmony_ci Required properties: 508c2ecf20Sopenharmony_ci 518c2ecf20Sopenharmony_ci - compatible : should be "ibm,akebono-avr". 528c2ecf20Sopenharmony_ci - reg : should contain the I2C bus address for the AVR. 53