From: Bin Meng Date: Mon, 1 Feb 2016 09:40:36 +0000 (-0800) Subject: spi: ich: Some clean up X-Git-Tag: v2016.03-rc2~127 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=9eb4339ba45fc7147b013c8e8d579ebc6d8d1bdb;p=oweals%2Fu-boot.git spi: ich: Some clean up This cleans up the ich spi driver a little bit: - Remove struct ich_spi_slave that is not referenced anywhere - Remove ending period in some comments - Move struct ich_spi_platdata and struct ich_spi_priv to ich.h - Add #ifndef _ICH_H_ .. in ich.h Signed-off-by: Bin Meng Reviewed-by: Simon Glass Reviewed-by: Jagan Teki --- diff --git a/drivers/spi/ich.c b/drivers/spi/ich.c index e543b8f0cf..22b5419368 100644 --- a/drivers/spi/ich.c +++ b/drivers/spi/ich.c @@ -5,6 +5,7 @@ * * This file is derived from the flashrom project. */ + #include #include #include @@ -17,41 +18,12 @@ #include "ich.h" -#define SPI_OPCODE_WREN 0x06 -#define SPI_OPCODE_FAST_READ 0x0b - #ifdef DEBUG_TRACE #define debug_trace(fmt, args...) debug(fmt, ##args) #else #define debug_trace(x, args...) #endif -struct ich_spi_platdata { - enum pch_version ich_version; /* Controller version, 7 or 9 */ -}; - -struct ich_spi_priv { - int ichspi_lock; - int locked; - int opmenu; - int menubytes; - void *base; /* Base of register set */ - int preop; - int optype; - int addr; - int data; - unsigned databytes; - int status; - int control; - int bbar; - int bcr; - uint32_t *pr; /* only for ich9 */ - int speed; /* pointer to speed control */ - ulong max_speed; /* Maximum bus speed in MHz */ - ulong cur_speed; /* Current bus speed */ - struct spi_trans trans; /* current transaction in progress */ -}; - static u8 ich_readb(struct ich_spi_priv *priv, int reg) { u8 value = readb(priv->base + reg); @@ -217,7 +189,7 @@ static void spi_setup_type(struct spi_trans *trans, int data_bytes) { trans->type = 0xFF; - /* Try to guess spi type from read/write sizes. */ + /* Try to guess spi type from read/write sizes */ if (trans->bytesin == 0) { if (trans->bytesout + data_bytes > 4) /* @@ -301,7 +273,7 @@ static int spi_setup_opcode(struct ich_spi_priv *ctlr, struct spi_trans *trans) static int spi_setup_offset(struct spi_trans *trans) { - /* Separate the SPI address and data. */ + /* Separate the SPI address and data */ switch (trans->type) { case SPI_OPCODE_TYPE_READ_NO_ADDRESS: case SPI_OPCODE_TYPE_WRITE_NO_ADDRESS: @@ -410,7 +382,7 @@ static int ich_spi_xfer(struct udevice *dev, unsigned int bitlen, trans->in = din; trans->bytesin = din ? bytes : 0; - /* There has to always at least be an opcode. */ + /* There has to always at least be an opcode */ if (!trans->bytesout) { debug("ICH SPI: No opcode for transfer\n"); return -EPROTO; @@ -541,7 +513,7 @@ static int ich_spi_xfer(struct udevice *dev, unsigned int bitlen, /* write it */ ich_writew(ctlr, control, ctlr->control); - /* Wait for Cycle Done Status or Flash Cycle Error. */ + /* Wait for Cycle Done Status or Flash Cycle Error */ status = ich_status_poll(ctlr, SPIS_CDS | SPIS_FCERR, 1); if (status < 0) return status; diff --git a/drivers/spi/ich.h b/drivers/spi/ich.h index 1419b23e11..6344e80d63 100644 --- a/drivers/spi/ich.h +++ b/drivers/spi/ich.h @@ -6,6 +6,9 @@ * This file is derived from the flashrom project. */ +#ifndef _ICH_H_ +#define _ICH_H_ + struct ich7_spi_regs { uint16_t spis; uint16_t spic; @@ -19,34 +22,34 @@ struct ich7_spi_regs { } __packed; struct ich9_spi_regs { - uint32_t bfpr; /* 0x00 */ + uint32_t bfpr; /* 0x00 */ uint16_t hsfs; uint16_t hsfc; uint32_t faddr; uint32_t _reserved0; - uint32_t fdata[16]; /* 0x10 */ - uint32_t frap; /* 0x50 */ + uint32_t fdata[16]; /* 0x10 */ + uint32_t frap; /* 0x50 */ uint32_t freg[5]; uint32_t _reserved1[3]; - uint32_t pr[5]; /* 0x74 */ + uint32_t pr[5]; /* 0x74 */ uint32_t _reserved2[2]; - uint8_t ssfs; /* 0x90 */ + uint8_t ssfs; /* 0x90 */ uint8_t ssfc[3]; - uint16_t preop; /* 0x94 */ + uint16_t preop; /* 0x94 */ uint16_t optype; - uint8_t opmenu[8]; /* 0x98 */ + uint8_t opmenu[8]; /* 0x98 */ uint32_t bbar; uint8_t _reserved3[12]; - uint32_t fdoc; /* 0xb0 */ + uint32_t fdoc; /* 0xb0 */ uint32_t fdod; uint8_t _reserved4[8]; - uint32_t afc; /* 0xc0 */ + uint32_t afc; /* 0xc0 */ uint32_t lvscc; uint32_t uvscc; uint8_t _reserved5[4]; - uint32_t fpb; /* 0xd0 */ + uint32_t fpb; /* 0xd0 */ uint8_t _reserved6[28]; - uint32_t srdl; /* 0xf0 */ + uint32_t srdl; /* 0xf0 */ uint32_t srdc; uint32_t scs; uint32_t bcr; @@ -121,8 +124,33 @@ struct spi_trans { uint32_t offset; }; -struct ich_spi_slave { - struct spi_slave slave; +#define SPI_OPCODE_WREN 0x06 +#define SPI_OPCODE_FAST_READ 0x0b + +struct ich_spi_platdata { + enum pch_version ich_version; /* Controller version, 7 or 9 */ +}; + +struct ich_spi_priv { + int ichspi_lock; + int locked; + int opmenu; + int menubytes; + void *base; /* Base of register set */ + int preop; + int optype; + int addr; + int data; + unsigned databytes; + int status; + int control; + int bbar; + int bcr; + uint32_t *pr; /* only for ich9 */ + int speed; /* pointer to speed control */ + ulong max_speed; /* Maximum bus speed in MHz */ + ulong cur_speed; /* Current bus speed */ struct spi_trans trans; /* current transaction in progress */ - int speed; /* SPI speed in Hz */ }; + +#endif /* _ICH_H_ */