On Thu, 29 May 2014, Alexander Graf wrote:
diff --git a/openbios-devel/drivers/macio.c b/openbios-devel/drivers/macio.c index 00d7149..fc08c30 100644 --- a/openbios-devel/drivers/macio.c +++ b/openbios-devel/drivers/macio.c @@ -311,7 +312,7 @@ ob_macio_keylargo_init(const char *path, phys_addr_t addr) /* The NewWorld NVRAM is not located in the MacIO device */ macio_nvram_init("", 0); escc_init(path, addr);
macio_ide_init(path, addr, 3);
macio_ide_init(path, addr, 2);If real hardware emulates 3 ports, QEMU should do so as well. If it emulates 2, then this patch is correct. Do you have any reference dts that can show which one it is?
In qemu/hw/misc/macio/macio.c only 2 ide ports are initialised. Also there's a comment in qemu/hw/ppc/mac_newworld.c saying the same. But look at the device tree dumps that I referenced at the end of my QEMU patch. Real hardware has three ports that are named:
ff87e5a0: /ata-4@1f000 ff880318: /disk ff8809e8: /ata-3@20000 ff882760: /disk ff882da8: /ata-3@21000 ff884b20: /disk
Really! There are two times ata-3 but no 1 and 2 and MorphOS actually expects these names. So to avoid confusion it's better to stay at emulating 2 ports and call them ata-3 and ata-4.
Maybe these references are of some help:
http://git.qemu.org/?p=qemu.git;a=blob;f=hw/ppc/e500.c;h=223bab9eea18dad7990...
http://www.devicetree.org/Device_Tree_Usage#Advanced_Interrupt_Mapping
Thanks for these. I've already seen the second one but I still can't tell if the current mappings are correct or not.
Regards, BALATON Zoltan