Le 06/06/2011 10:01, corentin.labbe a écrit : > Hello > > I have a sun blade 100 and I want to get the sensors working with > lm_sensors, but in current state, it doesn't work. > > After some research, i have found that all smbus driver and the i2c_ali1535 particularly cant work. > It assumes that ioport address are 16bits wide (address stored with an unsigned short). > But on SPARC arch, ioports are mapped in memory and so are stored with an unsigned long. > > So I write a patch for i2c_ali1535 for supporting SPARC architecture. > With this patch, the driver i2c_ali1535 loads and works successfully. > # sensors > adm1023-i2c-0-18 > Adapter: SMBus ALI1535 adapter at 0x1fe02000620 > temp1: +31.0 C (low = -55.0 C, high = +127.0 C) > temp2: +61.6 C (low = -55.0 C, high = +127.0 C) > > But this patch is bad because the base address for ioport is hard-coded (0x1fe02000000). > I have tried to understand how works all SPARC drivers but I cant find how to get that. > > Perhaps i can get some usefull infos with all of_* functions but i dont know what exaclty means infos printed by prtconf (assigned-addresses and reg specifically). > Node 0xf0083f44 > .node: f0083f44 > assigned-addresses: 81001810.00000000.00000000.00000000.00000010 > name: 'pmu' > ranges: 00000000.00000000.00001800.00000000.00000000.00000100.00000001.00000000.81001810.00000000.00000600.00000100.00000002.00000000.81001814.00000000.00000000.00000100 > reg: 00001800.00000000.00000000.00000000.00000000.81001810.00000000.00000600.00000000.00000010 > compatible: 70636931.3062392c.37313031.2e300070.63693130.62392c37.31303100.70636963.6c617373.2c303030.30303000.70636963.6c617373.2c303030.3000 > #address-cells: 00000002 > #size-cells: 00000001 > devsel-speed: 00000001 > class-code: 00000000 > latency-timer: 00000000 > cache-line-size: 00000000 > max-latency: 00000000 > min-grant: 00000000 > revision-id: 00000000 > device-id: 00007101 > vendor-id: 000010b9 > > Node 0xf00849c4 > .node: f00849c4 > reg: 00000000.00000000.00000100.00000001.00000000.00000100 > #address-cells: 00000002 > #size-cells: 00000000 > interrupts: 00000001 > compatible: 'i2c-smbus' > name: 'i2c' > > Node 0xf008505c > .node: f008505c > compatible: 'i2c-max1617' > name: 'temperature' > reg: 00000000.00000030 > > > Best regards Hello Sorry, i think i must clarify, my question is: Is there a way to figure out the I/O port offset without hard-coding it ? I have found pci_determine_mem_io_space() in arch/sparc/kernel/pci_common.c and struct iomem_resource.start but still dont know if it is a good way to get it. Thanks in advance Best regards -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
