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kernel/linux-imx6_3.14.28/drivers/pcmcia/ricoh.h 6.73 KB
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  /*
   * ricoh.h 1.9 1999/10/25 20:03:34
   *
   * The contents of this file are subject to the Mozilla Public License
   * Version 1.1 (the "License"); you may not use this file except in
   * compliance with the License. You may obtain a copy of the License
   * at http://www.mozilla.org/MPL/
   *
   * Software distributed under the License is distributed on an "AS IS"
   * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
   * the License for the specific language governing rights and
   * limitations under the License. 
   *
   * The initial developer of the original code is David A. Hinds
   * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
   * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
   *
   * Alternatively, the contents of this file may be used under the
   * terms of the GNU General Public License version 2 (the "GPL"), in which
   * case the provisions of the GPL are applicable instead of the
   * above.  If you wish to allow the use of your version of this file
   * only under the terms of the GPL and not to allow others to use
   * your version of this file under the MPL, indicate your decision by
   * deleting the provisions above and replace them with the notice and
   * other provisions required by the GPL.  If you do not delete the
   * provisions above, a recipient may use your version of this file
   * under either the MPL or the GPL.
   */
  
  #ifndef _LINUX_RICOH_H
  #define _LINUX_RICOH_H
  
  
  #define RF5C_MODE_CTL		0x1f	/* Mode control */
  #define RF5C_PWR_CTL		0x2f	/* Mixed voltage control */
  #define RF5C_CHIP_ID		0x3a	/* Chip identification */
  #define RF5C_MODE_CTL_3		0x3b	/* Mode control 3 */
  
  /* I/O window address offset */
  #define RF5C_IO_OFF(w)		(0x36+((w)<<1))
  
  /* Flags for RF5C_MODE_CTL */
  #define RF5C_MODE_ATA		0x01	/* ATA mode */
  #define RF5C_MODE_LED_ENA	0x02	/* IRQ 12 is LED */
  #define RF5C_MODE_CA21		0x04
  #define RF5C_MODE_CA22		0x08
  #define RF5C_MODE_CA23		0x10
  #define RF5C_MODE_CA24		0x20
  #define RF5C_MODE_CA25		0x40
  #define RF5C_MODE_3STATE_BIT7	0x80
  
  /* Flags for RF5C_PWR_CTL */
  #define RF5C_PWR_VCC_3V		0x01
  #define RF5C_PWR_IREQ_HIGH	0x02
  #define RF5C_PWR_INPACK_ENA	0x04
  #define RF5C_PWR_5V_DET		0x08
  #define RF5C_PWR_TC_SEL		0x10	/* Terminal Count: irq 11 or 15 */
  #define RF5C_PWR_DREQ_LOW	0x20
  #define RF5C_PWR_DREQ_OFF	0x00	/* DREQ steering control */
  #define RF5C_PWR_DREQ_INPACK	0x40
  #define RF5C_PWR_DREQ_SPKR	0x80
  #define RF5C_PWR_DREQ_IOIS16	0xc0
  
  /* Values for RF5C_CHIP_ID */
  #define RF5C_CHIP_RF5C296	0x32
  #define RF5C_CHIP_RF5C396	0xb2
  
  /* Flags for RF5C_MODE_CTL_3 */
  #define RF5C_MCTL3_DISABLE	0x01	/* Disable PCMCIA interface */
  #define RF5C_MCTL3_DMA_ENA	0x02
  
  /* Register definitions for Ricoh PCI-to-CardBus bridges */
  
  /* Extra bits in CB_BRIDGE_CONTROL */
  #define RL5C46X_BCR_3E0_ENA		0x0800
  #define RL5C46X_BCR_3E2_ENA		0x1000
  
  /* Bridge Configuration Register */
  #define RL5C4XX_CONFIG			0x80	/* 16 bit */
  #define  RL5C4XX_CONFIG_IO_1_MODE	0x0200
  #define  RL5C4XX_CONFIG_IO_0_MODE	0x0100
  #define  RL5C4XX_CONFIG_PREFETCH	0x0001
  
  /* Misc Control Register */
  #define RL5C4XX_MISC			0x0082	/* 16 bit */
  #define  RL5C4XX_MISC_HW_SUSPEND_ENA	0x0002
  #define  RL5C4XX_MISC_VCCEN_POL		0x0100
  #define  RL5C4XX_MISC_VPPEN_POL		0x0200
  #define  RL5C46X_MISC_SUSPEND		0x0001
  #define  RL5C46X_MISC_PWR_SAVE_2	0x0004
  #define  RL5C46X_MISC_IFACE_BUSY	0x0008
  #define  RL5C46X_MISC_B_LOCK		0x0010
  #define  RL5C46X_MISC_A_LOCK		0x0020
  #define  RL5C46X_MISC_PCI_LOCK		0x0040
  #define  RL5C47X_MISC_IFACE_BUSY	0x0004
  #define  RL5C47X_MISC_PCI_INT_MASK	0x0018
  #define  RL5C47X_MISC_PCI_INT_DIS	0x0020
  #define  RL5C47X_MISC_SUBSYS_WR		0x0040
  #define  RL5C47X_MISC_SRIRQ_ENA		0x0080
  #define  RL5C47X_MISC_5V_DISABLE	0x0400
  #define  RL5C47X_MISC_LED_POL		0x0800
  
  /* 16-bit Interface Control Register */
  #define RL5C4XX_16BIT_CTL		0x0084	/* 16 bit */
  #define  RL5C4XX_16CTL_IO_TIMING	0x0100
  #define  RL5C4XX_16CTL_MEM_TIMING	0x0200
  #define  RL5C46X_16CTL_LEVEL_1		0x0010
  #define  RL5C46X_16CTL_LEVEL_2		0x0020
  
  /* 16-bit IO and memory timing registers */
  #define RL5C4XX_16BIT_IO_0		0x0088	/* 16 bit */
  #define RL5C4XX_16BIT_MEM_0		0x008a	/* 16 bit */
  #define  RL5C4XX_SETUP_MASK		0x0007
  #define  RL5C4XX_SETUP_SHIFT		0
  #define  RL5C4XX_CMD_MASK		0x01f0
  #define  RL5C4XX_CMD_SHIFT		4
  #define  RL5C4XX_HOLD_MASK		0x1c00
  #define  RL5C4XX_HOLD_SHIFT		10
  #define  RL5C4XX_MISC_CONTROL           0x2F /* 8 bit */
  #define  RL5C4XX_ZV_ENABLE              0x08
  
  #ifdef __YENTA_H
  
  #define rl_misc(socket)		((socket)->private[0])
  #define rl_ctl(socket)		((socket)->private[1])
  #define rl_io(socket)		((socket)->private[2])
  #define rl_mem(socket)		((socket)->private[3])
  #define rl_config(socket)	((socket)->private[4])
  
  static void ricoh_zoom_video(struct pcmcia_socket *sock, int onoff)
  {
          u8 reg;
  	struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
  
          reg = config_readb(socket, RL5C4XX_MISC_CONTROL);
          if (onoff)
                  /* Zoom zoom, we will all go together, zoom zoom, zoom zoom */
                  reg |=  RL5C4XX_ZV_ENABLE;
          else
                  reg &= ~RL5C4XX_ZV_ENABLE;
  	
          config_writeb(socket, RL5C4XX_MISC_CONTROL, reg);
  }
  
  static void ricoh_set_zv(struct yenta_socket *socket)
  {
          if(socket->dev->vendor == PCI_VENDOR_ID_RICOH)
          {
                  switch(socket->dev->device)
                  {
                          /* There may be more .. */
  		case  PCI_DEVICE_ID_RICOH_RL5C478:
  			socket->socket.zoom_video = ricoh_zoom_video;
  			break;  
                  }
          }
  }
  
  static void ricoh_save_state(struct yenta_socket *socket)
  {
  	rl_misc(socket) = config_readw(socket, RL5C4XX_MISC);
  	rl_ctl(socket) = config_readw(socket, RL5C4XX_16BIT_CTL);
  	rl_io(socket) = config_readw(socket, RL5C4XX_16BIT_IO_0);
  	rl_mem(socket) = config_readw(socket, RL5C4XX_16BIT_MEM_0);
  	rl_config(socket) = config_readw(socket, RL5C4XX_CONFIG);
  }
  
  static void ricoh_restore_state(struct yenta_socket *socket)
  {
  	config_writew(socket, RL5C4XX_MISC, rl_misc(socket));
  	config_writew(socket, RL5C4XX_16BIT_CTL, rl_ctl(socket));
  	config_writew(socket, RL5C4XX_16BIT_IO_0, rl_io(socket));
  	config_writew(socket, RL5C4XX_16BIT_MEM_0, rl_mem(socket));
  	config_writew(socket, RL5C4XX_CONFIG, rl_config(socket));
  }
  
  
  /*
   * Magic Ricoh initialization code..
   */
  static int ricoh_override(struct yenta_socket *socket)
  {
  	u16 config, ctl;
  
  	config = config_readw(socket, RL5C4XX_CONFIG);
  
  	/* Set the default timings, don't trust the original values */
  	ctl = RL5C4XX_16CTL_IO_TIMING | RL5C4XX_16CTL_MEM_TIMING;
  
  	if(socket->dev->device < PCI_DEVICE_ID_RICOH_RL5C475) {
  		ctl |= RL5C46X_16CTL_LEVEL_1 | RL5C46X_16CTL_LEVEL_2;
  	} else {
  		config |= RL5C4XX_CONFIG_PREFETCH;
  	}
  
  	config_writew(socket, RL5C4XX_16BIT_CTL, ctl);
  	config_writew(socket, RL5C4XX_CONFIG, config);
  
  	ricoh_set_zv(socket);
  
  	return 0;
  }
  
  #endif /* CONFIG_CARDBUS */
  
  #endif /* _LINUX_RICOH_H */