Select Git revision
config_mpc85xx.h
Forked from
Reform / reform-boundary-uboot
Source project has a limited visibility.
-
Kumar Gala authored
Erratum A-003999: Running Floating Point instructions requires special initialization. Impact: Floating point arithmetic operations may result in an incorrect value. Workaround: Perform a read modify write to set bit 7 to a 1 in SPR 977 before executing any floating point arithmetic operation. This bit can be set when setting MSR[FP], and can be cleared when clearing MSR[FP]. Alternatively, the bit can be set once at boot time, and never cleared. There will be no performance degradation due to setting this bit. Signed-off-by:Kumar Gala <galak@kernel.crashing.org>
Kumar Gala authoredErratum A-003999: Running Floating Point instructions requires special initialization. Impact: Floating point arithmetic operations may result in an incorrect value. Workaround: Perform a read modify write to set bit 7 to a 1 in SPR 977 before executing any floating point arithmetic operation. This bit can be set when setting MSR[FP], and can be cleared when clearing MSR[FP]. Alternatively, the bit can be set once at boot time, and never cleared. There will be no performance degradation due to setting this bit. Signed-off-by:
lpd7a400_cpld.h 7.18 KiB
/*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* Logic lh7a400-10 Card Engine CPLD interface
*/
#ifndef __LPD7A400_CPLD_H_
#define __LPD7A400_CPLD_H_
/*
* IO Controller Address and Register Definitions
* - using LH7A400-10 Card Engine IO Controller Specification
* (logic PN: 70000079)
*/
/*------------------------------------------------------------------
* Slow Peripherals (nCS6)
*/
#define LPD7A400_CPLD_CF (0x60200000)
#define LPD7A400_CPLD_ISA (0x60400000)
/*------------------------------------------------------------------
* Fast Peripherals (nCS7)
*
* The CPLD directs access to 0x70000000-0x701fffff to the onboard
* ethernet controller
*/
#define LPD7A400_CPLD_WLAN_BASE (0x70000000)
/* All registers are 8 bit */
#define LPD7A400_CPLD_CECTL_REG (0x70200000)
#define LPD7A400_CPLD_SPIDATA_REG (0x70600000)
#define LPD7A400_CPLD_SPICTL_REG (0x70800000)
#define LPD7A400_CPLD_EEPSPI_REG (0x70a00000)
#define LPD7A400_CPLD_INTMASK_REG (0x70c00000)
#define LPD7A400_CPLD_MODE_REG (0x70e00000)
#define LPD7A400_CPLD_FLASH_REG (0x71000000)
#define LPD7A400_CPLD_PWRMG_REG (0x71200000)
#define LPD7A400_CPLD_REV_REG (0x71400000)
#define LPD7A400_CPLD_EXTGPIO_REG (0x71600000)
#define LPD7A400_CPLD_GPIODATA_REG (0x71800000)
#define LPD7A400_CPLD_GPIODIR_REG (0x71a00000)
#define LPD7A400_CPLD_REGPTR (volatile u8*)
/* Card Engine Control Register (section 3.1.2) */
#define CECTL_SWINT (0x80) /* Software settable interrupt source
(routed to uP PF3)
0 = generate interrupt, 1 = do not */
#define CECTL_OCMSK (0x40) /* USB1 connection interrupt mask
0 = not masked, 1 = masked */#define CECTL_PDRV (0x20) /* PCC_nDRV output
0 = active, 1 = inactive */
#define CECTL_USB1C (0x10) /* USB1 connection interrupt
0 = active, 1 = inactive */
#define CECTL_USB1P (0x08) /* USB1 Power enable
0 = enabled, 1 = disabled */
#define CECTL_AWKP (0x04) /* Auto-Wakeup enable
0 = enabled, 1 = disabled */
#define CECTL_LCDV (0x02) /* LCD VEE enable
0 = disabled, 1 = enabled */
#define CECTL_WLPE (0x01) /* Wired LAN power enable
0 = enabled, 1 = disabled */
/* SPI Control Register (section 3.1.5) */
#define SPICTL_SPLD (0x20) /* SPI load (R)
0 = data reg. has not been loaded, shift
count has not been reset
1 = data reg. loaded, shift count reset */
#define SPICTL_SPST (0x10) /* SPI start (RW)
0 = don't load data reg. and reset shift count
1 = ready to load data reg and reset shift count */
#define SPICTL_SPDN (0x08) /* SPI done (R)
0 = not done
1 = access done */
#define SPICTL_SPRW (0x04) /* SPI read/write (RW)
0 = SPI write access
1 = SPI read access */
#define SPICTL_STCS (0x02) /* SPI touch chip select (RW)
0 = not selected
1 = selected */
#define SPICTL_SCCS (0x01) /* SPI CODEC chip select (RW) {not used}
0 = not selected
1 = selected */
/* EEPROM SPI Interface Register (section 3.1.6) */
#define EEPSPI_EECS (0x08) /* EEPROM chip select (RW)
0 = not selected
1 = selected */
#define EEPSPI_EECK (0x04) /* EEPROM SPI clock (RW) */
#define EEPSPI_EETX (0x02) /* EEPROM SPI tx data (RW) */
#define EEPSPI_EERX (0x01) /* EEPROM SPI rx data (R) */
/* Interrupt/Mask Register (section 3.1.7) */
#define INTMASK_CMSK (0x80) /* CPLD_nIRQD interrupt mask (RW)
0 = not masked
1 = masked */
#define INTMASK_CIRQ (0x40) /* interrupt signal to CPLD (R)
0 = interrupt active
1 = no interrupt */
#define INTMASK_PIRQ (0x10) /* legacy, no effect */
#define INTMASK_TMSK (0x08) /* Touch chip interrupt mask (RW)
0 = not masked
1 = masked */
#define INTMASK_WMSK (0x04) /* Wired LAN interrupt mask (RW)
0 = not masked
1 = masked */
#define INTMASK_TIRQ (0x02) /* Touch chip interrupt request (R)
0 = interrupt active
1 = no interrupt */
#define INTMASK_WIRQ (0x01) /* Wired LAN interrupt request (R)
0 = interrupt active
1 = no interrupt */
/* Mode Register (section 3.1.8) */
#define MODE_VS1 (0x80) /* PCMCIA Voltage Sense 1 input (PCC_VS1) (R)
0 = active slot VS1 pin is low
1 = active slot VS1 pin is high */
#define MODE_CD2 (0x40) /* PCMCIA Card Detect 2 input (PCC_nCD2) (R)
0 = active slot CD2 is low
1 = active slot CD2 is high */#define MODE_IOIS16 (0x20) /* PCMCIA IOIS16 input (PCC_nIOIS16) (R)
0 = 16 bit access area
1 = 8 bit access area */
#define MODE_CD1 (0x10) /* PCMCIA Card Detect 1 input (PCC_nCD1) (R)
0 = active slot CD1 is low
1 = active slot CD1 is high */
#define MODE_upMODE3 (0x08) /* Mode Pin 3 (R)
0 = off-board boot device
1 = on-board boot device (flash) */
#define MODE_upMODE2 (0x04) /* Mode Pin 2 (R) (LH7A400 Little Endian only)
0 = big endian
1 = little endian */
#define MODE_upMODE1 (0x02) /* Mode Pin 1 and Mode Pin 2 (R) */
#define MODE_upMODE0 (0x01) /* - bus width at boot */
/* Flash Register (section 3.1.9) */
#define FLASH_FPOP (0x08) /* Flash populated (RW)
0 = populated, 1 = not */
#define FLASH_FST2 (0x04) /* Flash status (R) (RY/BY# pin for upper 16 bit chip
0 = busy, 1 = ready */
#define FLASH_FST1 (0x02) /* Flash status (R) (RY/BY# pin for lower 16 bit chip
0 = busy, 1 = ready */
#define FLASH_FPEN (0x01) /* Flash program enable (RW)
0 = flash write protected
1 = programming enabled */
/* Power Management Register (section 3.1.10)
* - when either of these is low an unmaskable interrupt to cpu
* is generated
*/
#define PWRMG_STBY (0x10) /* state of nSTANDBY signal to CPLD (R)
0 = low, 1 = high */
#define PWRMG_SPND (0x04) /* state of nSUSPEND signal to CPLD (R)
0 = low, 1 = high */
/* Extended GPIO Register (section 3.1.12) */
#define EXTGPIO_STATUS1 (0x04) /* Status 1 output (RW) (uP_STATUS_1)
0 = set pin low, 1 = set pin high */
#define EXTGPIO_STATUS2 (0x02) /* Status 2 output (RW) (uP_STATUS_2)
0 = set pin low, 1 = set pin high */
#define EXTGPIO_GPIO1 (0x01) /* General purpose output (RW) (CPLD_GPIO_1)
0 = set pin low, 1 = set pin high */
/* GPIO Data Register (section 3.1.13) */
#define GPIODATA_GPIO2 (0x01) /* General purpose input/output (RW) (CPLD_GPIO_2)
0 = set low (output) / read low (input)
1 = set high (output) / read high (input) */
/* GPIO Direction Register (section 3.1.14) */
#define GPIODIR_GPDR0 (0x01) /* GPIO2 direction (RW)
0 = output, 1 = input */
#endif /* __LH7A400_H__ */