linux/drivers/of
Srinivas Kandagatla 9aacd602f0 of/fdt: fix memory range check
In cases where board has below memory DT node

memory{
	device_type = "memory";
	reg = <0x80000000 0x80000000>;
};

Check on the memory range in fdt.c will always fail because it is
comparing MAX_PHYS_ADDR with base + size, in fact it should compare
it with base + size - 1.

This issue was originally noticed on Qualcomm IFC6410 board.
Without this patch kernel shows up noticed unnecessary warnings

[    0.000000] Machine model: Qualcomm APQ8064/IFC6410
[    0.000000] Ignoring memory range 0xffffffff - 0x100000000
[    0.000000] cma: Reserved 64 MiB at ab800000

as a result the size get reduced to 0x7fffffff which looks wrong.

This patch fixes the check involved in generating this warning and
as a result it also fixes the wrong size calculation.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
[grant.likely: adjust new size calculation also]
Signed-off-by: Grant Likely <grant.likely@linaro.org>
2014-09-25 11:55:50 +01:00
..
testcase-data Merge branch 'devicetree/next-overlay' into devicetree/next 2014-08-11 14:06:23 +01:00
address.c of: Provide a function to request and map memory 2014-07-23 12:02:30 +02:00
base.c of: make sure of_alias is initialized before accessing it 2014-09-08 15:57:26 +01:00
device.c of: rename of_aliases_mutex to just of_mutex 2014-07-07 13:42:52 +01:00
dynamic.c of: Disabling OF functions that use sysfs if CONFIG_SYSFS disabled 2014-09-08 15:57:25 +01:00
fdt_address.c of/fdt: add FDT address translation support 2014-05-20 15:19:25 -05:00
fdt.c of/fdt: fix memory range check 2014-09-25 11:55:50 +01:00
irq.c of/irq: Fix lookup to use 'interrupts-extended' property first 2014-08-16 09:03:58 +01:00
Kconfig of: Fixing OF Selftest build error 2014-08-03 12:21:28 -06:00
Makefile Merge branch 'devicetree/next-overlay' into devicetree/next 2014-08-11 14:06:23 +01:00
of_mdio.c net: fix circular dependency in of_mdio code 2014-07-02 00:24:14 -07:00
of_mtd.c of_mtd: Add helpers to get ECC strength and ECC step size 2014-03-10 22:42:28 -07:00
of_net.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-04-02 20:53:45 -07:00
of_pci_irq.c of_pci_irq: kill useless variable in of_irq_parse_pci() 2014-05-27 12:13:34 +01:00
of_pci.c of: implement pci_address_to_pio as weak function 2013-10-09 20:04:06 -05:00
of_private.h of: Transactional DT support. 2014-07-23 17:29:15 -06:00
of_reserved_mem.c drivers: of: add automated assignment of reserved regions to client devices 2014-08-01 12:22:21 -06:00
pdt.c of: device_node kobject lifecycle fixes 2014-03-19 14:58:40 +00:00
platform.c of/platform: Fix of_platform_device_destroy iteration of devices 2014-07-07 13:33:46 +01:00
selftest.c Enabling OF selftest to run without machine's devicetree 2014-08-16 09:03:56 +01:00