diff options
Diffstat (limited to 'drivers/crypto/caam/regs.h')
| -rw-r--r-- | drivers/crypto/caam/regs.h | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/crypto/caam/regs.h b/drivers/crypto/caam/regs.h index d7c3579af791..a8a79975682f 100644 --- a/drivers/crypto/caam/regs.h +++ b/drivers/crypto/caam/regs.h @@ -108,20 +108,31 @@ /* * The only users of these wr/rd_reg64 functions is the Job Ring (JR). - * The DMA address registers in the JR are a pair of 32-bit registers. - * The layout is: + * The DMA address registers in the JR are handled differently depending on + * platform: + * + * 1. All BE CAAM platforms and i.MX platforms (LE CAAM): * * base + 0x0000 : most-significant 32 bits * base + 0x0004 : least-significant 32 bits * * The 32-bit version of this core therefore has to write to base + 0x0004 - * to set the 32-bit wide DMA address. This seems to be independent of the - * endianness of the written/read data. + * to set the 32-bit wide DMA address. + * + * 2. All other LE CAAM platforms (LS1021A etc.) + * base + 0x0000 : least-significant 32 bits + * base + 0x0004 : most-significant 32 bits */ #ifndef CONFIG_64BIT +#if !defined(CONFIG_CRYPTO_DEV_FSL_CAAM_LE) || \ + defined(CONFIG_CRYPTO_DEV_FSL_CAAM_IMX) #define REG64_MS32(reg) ((u32 __iomem *)(reg)) #define REG64_LS32(reg) ((u32 __iomem *)(reg) + 1) +#else +#define REG64_MS32(reg) ((u32 __iomem *)(reg) + 1) +#define REG64_LS32(reg) ((u32 __iomem *)(reg)) +#endif static inline void wr_reg64(u64 __iomem *reg, u64 data) { |