162306a36Sopenharmony_ci 262306a36Sopenharmony_ciIBM Akebono board device tree 362306a36Sopenharmony_ci============================= 462306a36Sopenharmony_ci 562306a36Sopenharmony_ciThe IBM Akebono board is a development board for the PPC476GTR SoC. 662306a36Sopenharmony_ci 762306a36Sopenharmony_ci0) The root node 862306a36Sopenharmony_ci 962306a36Sopenharmony_ci Required properties: 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ci - model : "ibm,akebono". 1262306a36Sopenharmony_ci - compatible : "ibm,akebono" , "ibm,476gtr". 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_ci1.a) The Secure Digital Host Controller Interface (SDHCI) node 1562306a36Sopenharmony_ci 1662306a36Sopenharmony_ci Represent the Secure Digital Host Controller Interfaces. 1762306a36Sopenharmony_ci 1862306a36Sopenharmony_ci Required properties: 1962306a36Sopenharmony_ci 2062306a36Sopenharmony_ci - compatible : should be "ibm,476gtr-sdhci","generic-sdhci". 2162306a36Sopenharmony_ci - reg : should contain the SDHCI registers location and length. 2262306a36Sopenharmony_ci - interrupts : should contain the SDHCI interrupt. 2362306a36Sopenharmony_ci 2462306a36Sopenharmony_ci1.b) The Advanced Host Controller Interface (AHCI) SATA node 2562306a36Sopenharmony_ci 2662306a36Sopenharmony_ci Represents the advanced host controller SATA interface. 2762306a36Sopenharmony_ci 2862306a36Sopenharmony_ci Required properties: 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_ci - compatible : should be "ibm,476gtr-ahci". 3162306a36Sopenharmony_ci - reg : should contain the AHCI registers location and length. 3262306a36Sopenharmony_ci - interrupts : should contain the AHCI interrupt. 3362306a36Sopenharmony_ci 3462306a36Sopenharmony_ci1.c) The FPGA node 3562306a36Sopenharmony_ci 3662306a36Sopenharmony_ci The Akebono board stores some board information such as the revision 3762306a36Sopenharmony_ci number in an FPGA which is represented by this node. 3862306a36Sopenharmony_ci 3962306a36Sopenharmony_ci Required properties: 4062306a36Sopenharmony_ci 4162306a36Sopenharmony_ci - compatible : should be "ibm,akebono-fpga". 4262306a36Sopenharmony_ci - reg : should contain the FPGA registers location and length. 4362306a36Sopenharmony_ci 4462306a36Sopenharmony_ci1.d) The AVR node 4562306a36Sopenharmony_ci 4662306a36Sopenharmony_ci The Akebono board has an Atmel AVR microprocessor attached to the I2C 4762306a36Sopenharmony_ci bus as a power controller for the board. 4862306a36Sopenharmony_ci 4962306a36Sopenharmony_ci Required properties: 5062306a36Sopenharmony_ci 5162306a36Sopenharmony_ci - compatible : should be "ibm,akebono-avr". 5262306a36Sopenharmony_ci - reg : should contain the I2C bus address for the AVR. 53