alistair23-linux/arch/unicore32/include/mach/regs-i2c.h
GuanXuetao 1cf46c42d7 unicore32: modify io_p2v and io_v2p macros, and adjust PKUNITY_mmio_BASEs
1. remove __REG macro
2. add (void __iomem *) to io_p2v macro
3. add (phys_addr_t) to io_v2p macro
4. add PKUNITY_AHB_BASE and PKUNITY_APB_BASE definitions
5. modify all PKUNITY_mmio_BASEs from physical addr to virtual addr
6. adjust prefix macro for all usage of PKUNITY_mmio_BASEs
  -- by advice with Arnd Bergmann

Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-03-17 09:19:21 +08:00

64 lines
1.6 KiB
C

/*
* PKUnity Inter-integrated Circuit (I2C) Registers
*/
/*
* Control Reg I2C_CON.
*/
#define I2C_CON (PKUNITY_I2C_BASE + 0x0000)
/*
* Target Address Reg I2C_TAR.
*/
#define I2C_TAR (PKUNITY_I2C_BASE + 0x0004)
/*
* Data buffer and command Reg I2C_DATACMD.
*/
#define I2C_DATACMD (PKUNITY_I2C_BASE + 0x0010)
/*
* Enable Reg I2C_ENABLE.
*/
#define I2C_ENABLE (PKUNITY_I2C_BASE + 0x006C)
/*
* Status Reg I2C_STATUS.
*/
#define I2C_STATUS (PKUNITY_I2C_BASE + 0x0070)
/*
* Tx FIFO Length Reg I2C_TXFLR.
*/
#define I2C_TXFLR (PKUNITY_I2C_BASE + 0x0074)
/*
* Rx FIFO Length Reg I2C_RXFLR.
*/
#define I2C_RXFLR (PKUNITY_I2C_BASE + 0x0078)
/*
* Enable Status Reg I2C_ENSTATUS.
*/
#define I2C_ENSTATUS (PKUNITY_I2C_BASE + 0x009C)
#define I2C_CON_MASTER FIELD(1, 1, 0)
#define I2C_CON_SPEED_STD FIELD(1, 2, 1)
#define I2C_CON_SPEED_FAST FIELD(2, 2, 1)
#define I2C_CON_RESTART FIELD(1, 1, 5)
#define I2C_CON_SLAVEDISABLE FIELD(1, 1, 6)
#define I2C_DATACMD_READ FIELD(1, 1, 8)
#define I2C_DATACMD_WRITE FIELD(0, 1, 8)
#define I2C_DATACMD_DAT_MASK FMASK(8, 0)
#define I2C_DATACMD_DAT(v) FIELD((v), 8, 0)
#define I2C_ENABLE_ENABLE FIELD(1, 1, 0)
#define I2C_ENABLE_DISABLE FIELD(0, 1, 0)
#define I2C_STATUS_RFF FIELD(1, 1, 4)
#define I2C_STATUS_RFNE FIELD(1, 1, 3)
#define I2C_STATUS_TFE FIELD(1, 1, 2)
#define I2C_STATUS_TFNF FIELD(1, 1, 1)
#define I2C_STATUS_ACTIVITY FIELD(1, 1, 0)
#define I2C_ENSTATUS_ENABLE FIELD(1, 1, 0)
#define I2C_TAR_THERMAL 0x4f
#define I2C_TAR_SPD 0x50
#define I2C_TAR_PWIC 0x55
#define I2C_TAR_EEPROM 0x57