From: H Hartley Sweeten Date: Fri, 12 Apr 2013 20:41:17 +0000 (-0700) Subject: staging: comedi: plx9052.h: document the CNTRL register X-Git-Tag: firefly_0821_release~3680^2~674^2~56 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4564cfd05236da2391753d13e03b8e49da5e2953;p=firefly-linux-kernel-4.4.55.git staging: comedi: plx9052.h: document the CNTRL register Add defines for the PLX 9052 CNTRL register defines and use them instead of the magic numbers in the me4000 driver Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/comedi/drivers/me4000.c b/drivers/staging/comedi/drivers/me4000.c index 371df1dbff00..641e693d5d0e 100644 --- a/drivers/staging/comedi/drivers/me4000.c +++ b/drivers/staging/comedi/drivers/me4000.c @@ -170,19 +170,6 @@ broken. #define ME4000_AO_DEMUX_ADJUST_VALUE 0x4c #define ME4000_AI_SAMPLE_COUNTER_REG 0xc0 -/* - * PLX Register map and bit defines - */ -#define PLX_ICR 0x50 -#define PLX_ICR_BIT_EEPROM_CLOCK_SET (1 << 24) -#define PLX_ICR_BIT_EEPROM_CHIP_SELECT (1 << 25) -#define PLX_ICR_BIT_EEPROM_WRITE (1 << 26) -#define PLX_ICR_BIT_EEPROM_READ (1 << 27) -#define PLX_ICR_BIT_EEPROM_VALID (1 << 28) -#define PLX_ICR_MASK_EEPROM (0x1f << 24) - -#define EEPROM_DELAY 1 - #define ME4000_AI_FIFO_COUNT 2048 #define ME4000_AI_MIN_TICKS 66 @@ -382,9 +369,9 @@ static int xilinx_download(struct comedi_device *dev) outl(PLX9052_INTCSR_LI2POL, info->plx_regbase + PLX9052_INTCSR); /* Set /CS and /WRITE of the Xilinx */ - value = inl(info->plx_regbase + PLX_ICR); - value |= 0x100; - outl(value, info->plx_regbase + PLX_ICR); + value = inl(info->plx_regbase + PLX9052_CNTRL); + value |= PLX9052_CNTRL_UIO2_DATA; + outl(value, info->plx_regbase + PLX9052_CNTRL); /* Init Xilinx with CS1 */ inb(xilinx_iobase + 0xC8); @@ -398,9 +385,9 @@ static int xilinx_download(struct comedi_device *dev) } /* Reset /CS and /WRITE of the Xilinx */ - value = inl(info->plx_regbase + PLX_ICR); - value &= ~0x100; - outl(value, info->plx_regbase + PLX_ICR); + value = inl(info->plx_regbase + PLX9052_CNTRL); + value &= ~PLX9052_CNTRL_UIO2_DATA; + outl(value, info->plx_regbase + PLX9052_CNTRL); if (FIRMWARE_NOT_AVAILABLE) { dev_err(dev->class_dev, "xilinx firmware unavailable due to licensing, aborting"); @@ -416,7 +403,7 @@ static int xilinx_download(struct comedi_device *dev) udelay(10); /* Check if BUSY flag is low */ - if (inl(info->plx_regbase + PLX_ICR) & 0x20) { + if (inl(info->plx_regbase + PLX9052_CNTRL) & PLX9052_CNTRL_UIO1_DATA) { dev_err(dev->class_dev, "Xilinx is still busy (idx = %d)\n", idx); @@ -426,7 +413,7 @@ static int xilinx_download(struct comedi_device *dev) } /* If done flag is high download was successful */ - if (inl(info->plx_regbase + PLX_ICR) & 0x4) { + if (inl(info->plx_regbase + PLX9052_CNTRL) & PLX9052_CNTRL_UIO0_DATA) { } else { dev_err(dev->class_dev, "DONE flag is not set\n"); dev_err(dev->class_dev, "Download not successful\n"); @@ -434,9 +421,9 @@ static int xilinx_download(struct comedi_device *dev) } /* Set /CS and /WRITE */ - value = inl(info->plx_regbase + PLX_ICR); - value |= 0x100; - outl(value, info->plx_regbase + PLX_ICR); + value = inl(info->plx_regbase + PLX9052_CNTRL); + value |= PLX9052_CNTRL_UIO2_DATA; + outl(value, info->plx_regbase + PLX9052_CNTRL); return 0; } @@ -448,11 +435,11 @@ static void me4000_reset(struct comedi_device *dev) int chan; /* Make a hardware reset */ - val = inl(info->plx_regbase + PLX_ICR); - val |= 0x40000000; - outl(val, info->plx_regbase + PLX_ICR); - val &= ~0x40000000; - outl(val , info->plx_regbase + PLX_ICR); + val = inl(info->plx_regbase + PLX9052_CNTRL); + val |= PLX9052_CNTRL_PCI_RESET; + outl(val, info->plx_regbase + PLX9052_CNTRL); + val &= ~PLX9052_CNTRL_PCI_RESET; + outl(val , info->plx_regbase + PLX9052_CNTRL); /* 0x8000 to the DACs means an output voltage of 0V */ for (chan = 0; chan < 4; chan++) diff --git a/drivers/staging/comedi/drivers/plx9052.h b/drivers/staging/comedi/drivers/plx9052.h index ab93b0b95fb7..ff76fbb4b3ef 100644 --- a/drivers/staging/comedi/drivers/plx9052.h +++ b/drivers/staging/comedi/drivers/plx9052.h @@ -44,4 +44,41 @@ #define PLX9052_INTCSR_LI2CLRINT (1 << 11) /* LI2 clear int */ #define PLX9052_INTCSR_ISAMODE (1 << 12) /* ISA interface mode */ +/* + * CNTRL - User I/O, Direct Slave Response, Serial EEPROM, and + * Initialization Control register + */ +#define PLX9052_CNTRL 0x50 +#define PLX9052_CNTRL_WAITO (1 << 0) /* UIO0 or WAITO# select */ +#define PLX9052_CNTRL_UIO0_DIR (1 << 1) /* UIO0 direction */ +#define PLX9052_CNTRL_UIO0_DATA (1 << 2) /* UIO0 data */ +#define PLX9052_CNTRL_LLOCKO (1 << 3) /* UIO1 or LLOCKo# select */ +#define PLX9052_CNTRL_UIO1_DIR (1 << 4) /* UIO1 direction */ +#define PLX9052_CNTRL_UIO1_DATA (1 << 5) /* UIO1 data */ +#define PLX9052_CNTRL_CS2 (1 << 6) /* UIO2 or CS2# select */ +#define PLX9052_CNTRL_UIO2_DIR (1 << 7) /* UIO2 direction */ +#define PLX9052_CNTRL_UIO2_DATA (1 << 8) /* UIO2 data */ +#define PLX9052_CNTRL_CS3 (1 << 9) /* UIO3 or CS3# select */ +#define PLX9052_CNTRL_UIO3_DIR (1 << 10) /* UIO3 direction */ +#define PLX9052_CNTRL_UIO3_DATA (1 << 11) /* UIO3 data */ +#define PLX9052_CNTRL_PCIBAR01 (0 << 12) /* bar 0 (mem) and 1 (I/O) */ +#define PLX9052_CNTRL_PCIBAR0 (1 << 12) /* bar 0 (mem) only */ +#define PLX9052_CNTRL_PCIBAR1 (2 << 12) /* bar 1 (I/O) only */ +#define PLX9052_CNTRL_PCI2_1_FEATURES (1 << 14) /* PCI r2.1 features enabled */ +#define PLX9052_CNTRL_PCI_R_W_FLUSH (1 << 15) /* read w/write flush mode */ +#define PLX9052_CNTRL_PCI_R_NO_FLUSH (1 << 16) /* read no flush mode */ +#define PLX9052_CNTRL_PCI_R_NO_WRITE (1 << 17) /* read no write mode */ +#define PLX9052_CNTRL_PCI_W_RELEASE (1 << 18) /* write release bus mode */ +#define PLX9052_CNTRL_RETRY_CLKS(x) (((x) & 0xf) << 19) /* slave retry clks */ +#define PLX9052_CNTRL_LOCK_ENAB (1 << 23) /* slave LOCK# enable */ +#define PLX9052_CNTRL_EEPROM_MASK (0x1f << 24) /* EEPROM bits */ +#define PLX9052_CNTRL_EEPROM_CLK (1 << 24) /* EEPROM clock */ +#define PLX9052_CNTRL_EEPROM_CS (1 << 25) /* EEPROM chip select */ +#define PLX9052_CNTRL_EEPROM_DOUT (1 << 26) /* EEPROM write bit */ +#define PLX9052_CNTRL_EEPROM_DIN (1 << 27) /* EEPROM read bit */ +#define PLX9052_CNTRL_EEPROM_PRESENT (1 << 28) /* EEPROM present */ +#define PLX9052_CNTRL_RELOAD_CFG (1 << 29) /* reload configuration */ +#define PLX9052_CNTRL_PCI_RESET (1 << 30) /* PCI adapter reset */ +#define PLX9052_CNTRL_MASK_REV (1 << 31) /* mask revision */ + #endif /* _PLX9052_H_ */