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authorMike Frysinger <vapier@gentoo.org>2010-10-16 18:31:14 -0400
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-10-25 01:16:17 +0100
commitebd71e3a4861849054751779ff5ccd3fb29a1e0a (patch)
tree34be07813f01c5557b97c27f5201d748bd9e6842 /drivers/mtd
parent5954c47c2194abcdeeae5f752e64b7c75770dbd3 (diff)
mtd: maps: gpio-addr-flash: fix warnings and make more portable
As reported on lkml, building this module for HIMEM systems spews warnings about mismatch in pointer types. Further, we need to use ioremap() in order to properly access the flash memory on most systems rather than just doing it directly. Reported-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/maps/gpio-addr-flash.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/mtd/maps/gpio-addr-flash.c b/drivers/mtd/maps/gpio-addr-flash.c
index 32e89d773b4e..af5707a80205 100644
--- a/drivers/mtd/maps/gpio-addr-flash.c
+++ b/drivers/mtd/maps/gpio-addr-flash.c
@@ -208,10 +208,14 @@ static int __devinit gpio_flash_probe(struct platform_device *pdev)
if (!state)
return -ENOMEM;
+ /*
+ * We cast start/end to known types in the boards file, so cast
+ * away their pointer types here to the known types (gpios->xxx).
+ */
state->gpio_count = gpios->end;
- state->gpio_addrs = (void *)gpios->start;
+ state->gpio_addrs = (void *)(unsigned long)gpios->start;
state->gpio_values = (void *)(state + 1);
- state->win_size = memory->end - memory->start + 1;
+ state->win_size = resource_size(memory);
memset(state->gpio_values, 0xff, arr_size);
state->map.name = DRIVER_NAME;
@@ -221,7 +225,7 @@ static int __devinit gpio_flash_probe(struct platform_device *pdev)
state->map.copy_to = gf_copy_to;
state->map.bankwidth = pdata->width;
state->map.size = state->win_size * (1 << state->gpio_count);
- state->map.virt = (void __iomem *)memory->start;
+ state->map.virt = ioremap_nocache(memory->start, state->map.size);
state->map.phys = NO_XIP;
state->map.map_priv_1 = (unsigned long)state;