On 07/01/2013 11:52 PM, Santosh Shilimkar wrote: > On some PAE architectures, the entire range of physical memory could reside > outside the 32-bit limit. These systems need the ability to specify the > initrd location using 64-bit numbers. > > This patch globally modifies the early_init_dt_setup_initrd_arch() function to > use 64-bit numbers instead of the current unsigned long. > > There has been quite a bit of debate about whether to use u64 or phys_addr_t. > It was concluded to stick to u64 to be consistent with rest of the device > tree code. As summarized by Geert, "The address to load the initrd is decided > by the bootloader/user and set at that point later in time. The dtb should not > be tied to the kernel you are booting" > > More details on the discussion can be found here: > https://lkml.org/lkml/2013/6/20/690 > https://lkml.org/lkml/2012/9/13/544 > > Cc: Grant Likely <grant.likely@xxxxxxxxxx> > Cc: Rob Herring <rob.herring@xxxxxxxxxxx> > Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> > Cc: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> > Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@xxxxxxxxxxxx> > Cc: Vineet Gupta <vgupta@xxxxxxxxxxxx> > Cc: Russell King <linux@xxxxxxxxxxxxxxxx> > Cc: Catalin Marinas <catalin.marinas@xxxxxxx> > Cc: Will Deacon <will.deacon@xxxxxxx> > Cc: Mark Salter <msalter@xxxxxxxxxx> > Cc: Aurelien Jacquiot <a-jacquiot@xxxxxx> > Cc: James Hogan <james.hogan@xxxxxxxxxx> > Cc: Michal Simek <monstr@xxxxxxxxx> > Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx> > Cc: Jonas Bonn <jonas@xxxxxxxxxxxx> > Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> > Cc: Paul Mackerras <paulus@xxxxxxxxx> > Cc: x86@xxxxxxxxxx > Cc: arm@xxxxxxxxxx > Cc: Chris Zankel <chris@xxxxxxxxxx> > Cc: Max Filippov <jcmvbkbc@xxxxxxxxx> > Cc: bigeasy@xxxxxxxxxxxxx > Cc: robherring2@xxxxxxxxx > Cc: Nicolas Pitre <nicolas.pitre@xxxxxxxxxx> > > Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx > Cc: linux-c6x-dev@xxxxxxxxxxxxx > Cc: linux-mips@xxxxxxxxxxxxxx > Cc: linuxppc-dev@xxxxxxxxxxxxxxxx > Cc: linux-xtensa@xxxxxxxxxxxxxxxx > Cc: devicetree-discuss@xxxxxxxxxxxxxxxx > > Signed-off-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx> > --- Acked-by: Vineet Gupta <vgupta@xxxxxxxxxxxx> [For arch/arc bits] -Vineet
