Am 24.04.19 um 17:21 schrieb Horatiu Vultur: > Microsemi SoC defines CONFIG_SYS_SDRAM_BASE to be 0x80000000, which > represents the start of kseg0 and represents a virtual address. Meaning > that the initrd_start and initrd_end point somewhere kseg0. > When these parameters are passed to linux kernel through DT > they are pointing somewhere in kseg0 which is a virtual address but linux > kernel expects the addresses to be physical addresses(in kuseg) because > it is converting the physical address to a virtual one. > > Therefore update the uboot to pass the physical address of initrd_start > and initrd_end by converting them using the function virt_to_phys before > setting up the DT. > > Signed-off-by: Horatiu Vultur <[email protected]> > --- > arch/mips/lib/bootm.c | 2 ++ > 1 file changed, 2 insertions(+)
There is still a task on my TODO list to convert and interpret CONFIG_SYS_SDRAM_BASE as physical address on MIPS so that patch would actually not be necessary. Paul already prepared some patches in the past, but additionally we need to properly support map_physmem() and fix some places in common code. Until we have this, I'll apply this patch, thanks. Reviewed-by: Daniel Schwierzeck <[email protected]> > > diff --git a/arch/mips/lib/bootm.c b/arch/mips/lib/bootm.c > index 35152cb..6a462f3 100644 > --- a/arch/mips/lib/bootm.c > +++ b/arch/mips/lib/bootm.c > @@ -247,6 +247,8 @@ int arch_fixup_fdt(void *blob) > > static int boot_setup_fdt(bootm_headers_t *images) > { > + images->initrd_start = virt_to_phys((void *)images->initrd_start); > + images->initrd_end = virt_to_phys((void *)images->initrd_end); > return image_setup_libfdt(images, images->ft_addr, images->ft_len, > &images->lmb); > } > -- - Daniel _______________________________________________ U-Boot mailing list [email protected] https://lists.denx.de/listinfo/u-boot
