From mboxrd@z Thu Jan 1 00:00:00 1970 From: Aaron Williams Date: Thu, 19 Sep 2019 11:35:29 +0000 Subject: [U-Boot] Question about device tree usage and ranges Message-ID: <6919985.Jd5oKnSDLo@flash> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi, In my device tree I need to translate some address via ranges but I'm running into some issues. If I use ofnode_get_addr_size() it is not using the #address-cells and #size-cells nor is it performing the ranges translation. It always assumes #address-cells and #size-cells is 2 and doesn't translate. Is this by design? If, on the other hand, I use ofnode_get_addr_size_index, it is having problems on ARM64. One problem I see is in of_translate_one in fdt_support.c. Shouldn't there be a fdt32_to_cpu or fdt64_to_cpu for the address after the memcpy in of_translate_one? I'm seeing the wrong endian address and size show up. OF: ** translation for device console at 0 ** __of_translate_address: bus: default, address: 00000007fff46d7d OF: bus is default (na=1, ns=1) on pci-console at 0x03000000 OF: translating address: 00000000 OF: parent bus is default (na=2, ns=2) on soc at 0 OF: walking ranges... OF: default map, cp=0, s=1, da=0 OF: parent translation for: 80003000 80400000 <======= WRONG ENDIAN! OF: with offset: 0 OF: one level translation: 80003000 80400000 <======= WRONG ENDIAN! OF: parent bus is default (na=2, ns=2) on OF: no ranges, 1:1 translation -Aaron