The DM_CM_RST register actually has bits 0-31 defaulting to 1s and bits 32-63 defaulting to 0s -- fix off-by-one in #define RST_RESERVED_BITS. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx> --- The patch is against Ulf Hansson's 'mmc.git' repo's 'fixes' branch. drivers/mmc/host/renesas_sdhi_internal_dmac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: mmc/drivers/mmc/host/renesas_sdhi_internal_dmac.c =================================================================== --- mmc.orig/drivers/mmc/host/renesas_sdhi_internal_dmac.c +++ mmc/drivers/mmc/host/renesas_sdhi_internal_dmac.c @@ -45,7 +45,7 @@ /* DM_CM_RST */ #define RST_DTRANRST1 BIT(9) #define RST_DTRANRST0 BIT(8) -#define RST_RESERVED_BITS GENMASK_ULL(32, 0) +#define RST_RESERVED_BITS GENMASK_ULL(31, 0) /* DM_CM_INFO1 and DM_CM_INFO1_MASK */ #define INFO1_CLEAR 0
