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64738e8ae8
Update the assignment of various physical memory buffers used by the SATA controller to explicitly be denoted as physical addresses. The memory is identity-mapped, so these function calls are a nop, but they provide good semantic documentation for any maintainers. The return value of virt_to_phys() is 'unsigned long'. On machines where sizeof(unsigned long) != sizeof(pointer), a cast through (uintptr_t) is needed to appease the compiler due to the potential of losing the upper 32 bits of the address. In compilation this scenario, a physical address could be 64-bits, yet the C pointer environment only allows 32-bit addresses; the constraint is that pointers cannot address more than 4Gb of memory and if virt_to_phys() ever returns an out-of-range value for the physical address, there are issues with emmory mapping which must be solved. However, since the memory is identify mappeed, there is no problem introducing the cast: the original pointer will reside in 32-bits, so the physical address will also be within in 32-bits. Signed-off-by: Taylor Hutt <thutt@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> |
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| .. | ||
| ahci.c | ||
| ata_piix.c | ||
| ata_piix.h | ||
| dwc_ahsata.c | ||
| dwc_ahsata.h | ||
| fsl_sata.c | ||
| fsl_sata.h | ||
| ftide020.c | ||
| ftide020.h | ||
| libata.c | ||
| Makefile | ||
| mvsata_ide.c | ||
| mxc_ata.c | ||
| pata_bfin.c | ||
| pata_bfin.h | ||
| sata_dwc.c | ||
| sata_dwc.h | ||
| sata_sil.c | ||
| sata_sil.h | ||
| sata_sil3114.c | ||
| sata_sil3114.h | ||
| sil680.c | ||
| sym53c8xx.c | ||
| systemace.c | ||