From: Igor Grinberg Date: Tue, 9 Mar 2010 09:43:52 +0000 (+0200) Subject: [ARM] pxa/cm-x300: update the memory fixup. X-Git-Tag: firefly_0821_release~9833^2~2117^2~1^2~2^2~24 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=818809752303b5b792dde4ace6321e8ccc180f65;p=firefly-linux-kernel-4.4.55.git [ARM] pxa/cm-x300: update the memory fixup. CM-X300 bootloader passes DRAM configuration information in ATAGS, however, the first memory bank is reported at actual physical address 0x8000000. Use the configuration information supplied by the bootloader and cope with the necessity to have PHYS_ADDR=0xa0000000. Signed-off-by: Igor Grinberg Signed-off-by: Mike Rapoport Signed-off-by: Eric Miao --- diff --git a/arch/arm/mach-pxa/cm-x300.c b/arch/arm/mach-pxa/cm-x300.c index 2012588fb200..be9dc7a20fbd 100644 --- a/arch/arm/mach-pxa/cm-x300.c +++ b/arch/arm/mach-pxa/cm-x300.c @@ -767,13 +767,13 @@ static void __init cm_x300_init(void) static void __init cm_x300_fixup(struct machine_desc *mdesc, struct tag *tags, char **cmdline, struct meminfo *mi) { - mi->nr_banks = 2; - mi->bank[0].start = 0xa0000000; - mi->bank[0].node = 0; - mi->bank[0].size = (64*1024*1024); - mi->bank[1].start = 0xc0000000; - mi->bank[1].node = 0; - mi->bank[1].size = (64*1024*1024); + /* Make sure that mi->bank[0].start = PHYS_ADDR */ + for (; tags->hdr.size; tags = tag_next(tags)) + if (tags->hdr.tag == ATAG_MEM && + tags->u.mem.start == 0x80000000) { + tags->u.mem.start = 0xa0000000; + break; + } } MACHINE_START(CM_X300, "CM-X300 module")