From: Christoph Müllner <[email protected]> Some machines have limited DMA engines, which cannot deal with arbitrary addresses. This patch introduces a function to model these restrictions on a machine level.
Signed-off-by: Christoph Müllner <[email protected]> Signed-off-by: Christoph Muellner <[email protected]> --- Changes in v2: None common/board_f.c | 5 +++++ include/init.h | 2 ++ 2 files changed, 7 insertions(+) diff --git a/common/board_f.c b/common/board_f.c index 7ef20f2042..92dc34d2d8 100644 --- a/common/board_f.c +++ b/common/board_f.c @@ -1053,3 +1053,8 @@ void board_init_f_r(void) hang(); } #endif /* CONFIG_X86 */ + +__weak int mach_addr_is_dmaable(void __iomem *ptr) +{ + return 1; +} diff --git a/include/init.h b/include/init.h index afc953d51e..1653d5086f 100644 --- a/include/init.h +++ b/include/init.h @@ -125,6 +125,8 @@ int misc_init_f(void); int embedded_dtb_select(void); #endif +int mach_addr_is_dmaable(void __iomem *ptr); + /* common/init/board_init.c */ extern ulong monitor_flash_len; -- 2.11.0 _______________________________________________ U-Boot mailing list [email protected] https://lists.denx.de/listinfo/u-boot
