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| author |   Micky Ching <micky_ching@realsil.com.cn> | 2014-12-05 13:54:26 +0800 |
|---|---|---|
| committer |   Lee Jones <lee.jones@linaro.org> | 2014-12-08 10:05:39 +0000 |
| commit | a3b63979f8a32af9e975a793fd0f612d42072740 (patch) | |
| tree | 8500a941a9118723082fd8efd1b4936da20f5669 | |
| parent | mfd: atmel-hlcdc: Add Kconfig option description and name (diff) | |
| download | linux-dev-a3b63979f8a32af9e975a793fd0f612d42072740.tar.xz linux-dev-a3b63979f8a32af9e975a793fd0f612d42072740.zip | |
mfd: rtsx: Add func to split u32 into register
Add helper function to write u32 to registers, if we want to put u32
value to 4 continuous register, this can help us reduce tedious work.
Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
| -rw-r--r-- | include/linux/mfd/rtsx_pci.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/mfd/rtsx_pci.h b/include/linux/mfd/rtsx_pci.h index 1604dda4edcf..0c12628e91c6 100644 --- a/include/linux/mfd/rtsx_pci.h +++ b/include/linux/mfd/rtsx_pci.h @@ -558,6 +558,7 @@ #define SD_SAMPLE_POINT_CTL 0xFDA7 #define SD_PUSH_POINT_CTL 0xFDA8 #define SD_CMD0 0xFDA9 +#define SD_CMD_START 0x40 #define SD_CMD1 0xFDAA #define SD_CMD2 0xFDAB #define SD_CMD3 0xFDAC @@ -995,4 +996,12 @@ static inline int rtsx_pci_update_cfg_byte(struct rtsx_pcr *pcr, int addr, return pci_write_config_byte(pcr->pci, addr, (val & mask) | append); } +static inline void rtsx_pci_write_be32(struct rtsx_pcr *pcr, u16 reg, u32 val) +{ + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, reg, 0xFF, val >> 24); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, reg + 1, 0xFF, val >> 16); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, reg + 2, 0xFF, val >> 8); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, reg + 3, 0xFF, val); +} + #endif |