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ARM: tegra: annotate IO_*_VIRT pointers 

Provide __iomem annotation for IO_*_VIRT pointers, which will propagate
up through IO_TO_VIRT(). Also fixes a 0 to NULL conversion of the base
case to silence sparse.

Unfortunately map_desc takes an unsigned long for the pointer instead of
a void __iomem *. For now, cast explicitly for those cases.

v2: change define to use IOMEM() like many other mach platforms per
comment from Russell.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Olof Johansson 2011-10-09 21:05:44 -07:00
parent 976d167615
commit e748b7310f
2 changed files with 16 additions and 10 deletions
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18
arch/arm/mach-tegra/include/mach/io.h
View File

@ -33,20 +33,26 @@
*
*/
#ifdef __ASSEMBLY__
#define IOMEM(x) (x)
#else
#define IOMEM(x) ((void __force __iomem *)(x))
#endif
#define IO_IRAM_PHYS 0x40000000
#define IO_IRAM_VIRT 0xFE400000
#define IO_IRAM_VIRT IOMEM(0xFE400000)
#define IO_IRAM_SIZE SZ_256K
#define IO_CPU_PHYS 0x50040000
#define IO_CPU_VIRT 0xFE000000
#define IO_CPU_VIRT IOMEM(0xFE000000)
#define IO_CPU_SIZE SZ_16K
#define IO_PPSB_PHYS 0x60000000
#define IO_PPSB_VIRT 0xFE200000
#define IO_PPSB_VIRT IOMEM(0xFE200000)
#define IO_PPSB_SIZE SZ_1M
#define IO_APB_PHYS 0x70000000
#define IO_APB_VIRT 0xFE300000
#define IO_APB_VIRT IOMEM(0xFE300000)
#define IO_APB_SIZE SZ_1M
#define IO_TO_VIRT_BETWEEN(p, st, sz) ((p) >= (st) && (p) < ((st) + (sz)))
@ -61,7 +67,7 @@
IO_TO_VIRT_XLATE((n), IO_CPU_PHYS, IO_CPU_VIRT) : \
IO_TO_VIRT_BETWEEN((n), IO_IRAM_PHYS, IO_IRAM_SIZE) ? \
IO_TO_VIRT_XLATE((n), IO_IRAM_PHYS, IO_IRAM_VIRT) : \
0)
NULL)
#ifndef __ASSEMBLER__
@ -71,7 +77,7 @@
void __iomem *tegra_ioremap(unsigned long phys, size_t size, unsigned int type);
void tegra_iounmap(volatile void __iomem *addr);
#define IO_ADDRESS(n) ((void __iomem *) IO_TO_VIRT(n))
#define IO_ADDRESS(n) (IO_TO_VIRT(n))
#ifdef CONFIG_TEGRA_PCI
extern void __iomem *tegra_pcie_io_base;

8
arch/arm/mach-tegra/io.c
View File

@ -31,25 +31,25 @@
static struct map_desc tegra_io_desc[] __initdata = {
{
.virtual = IO_PPSB_VIRT,
.virtual = (unsigned long)IO_PPSB_VIRT,
.pfn = __phys_to_pfn(IO_PPSB_PHYS),
.length = IO_PPSB_SIZE,
.type = MT_DEVICE,
},
{
.virtual = IO_APB_VIRT,
.virtual = (unsigned long)IO_APB_VIRT,
.pfn = __phys_to_pfn(IO_APB_PHYS),
.length = IO_APB_SIZE,
.type = MT_DEVICE,
},
{
.virtual = IO_CPU_VIRT,
.virtual = (unsigned long)IO_CPU_VIRT,
.pfn = __phys_to_pfn(IO_CPU_PHYS),
.length = IO_CPU_SIZE,
.type = MT_DEVICE,
},
{
.virtual = IO_IRAM_VIRT,
.virtual = (unsigned long)IO_IRAM_VIRT,
.pfn = __phys_to_pfn(IO_IRAM_PHYS),
.length = IO_IRAM_SIZE,
.type = MT_DEVICE,