arch/all-pc/boot/grub2-aros/include/grub/mips/yeeloong/pci.h

   1 /*
   2  *  GRUB  --  GRand Unified Bootloader
   3  *  Copyright (C) 2008  Free Software Foundation, Inc.
   4  *
   5  *  GRUB is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  GRUB is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifndef GRUB_MACHINE_PCI_H
  20 #define GRUB_MACHINE_PCI_H      1
  21
  22 #ifndef ASM_FILE
  23 #include <grub/types.h>
  24 #include <grub/cpu/io.h>
  25 #endif
  26
  27 #define GRUB_YEELOONG_OHCI_PCIID 0x00351033
  28 #define GRUB_YEELOONG_EHCI_PCIID 0x00e01033
  29 #define GRUB_YEELOONG_OHCI_GHOST_FUNCTION 4
  30 #define GRUB_YEELOONG_EHCI_GHOST_FUNCTION 5
  31
  32 #define GRUB_PCI_NUM_BUS        1
  33 #define GRUB_PCI_NUM_DEVICES    16
  34
  35 #define GRUB_MACHINE_PCI_IO_BASE           0xbfd00000
  36 #define GRUB_MACHINE_PCI_CONFSPACE         0xbfe80000
  37 #define GRUB_MACHINE_PCI_CONTROLLER_HEADER 0xbfe00000
  38
  39 #define GRUB_MACHINE_PCI_CONF_CTRL_REG_ADDR 0xbfe00118
  40
  41 #ifndef ASM_FILE
  42 #define GRUB_MACHINE_PCI_CONF_CTRL_REG    (*(volatile grub_uint32_t *) \
  43                                            GRUB_MACHINE_PCI_CONF_CTRL_REG_ADDR)
  44 #define GRUB_MACHINE_PCI_IO_CTRL_REG      (*(volatile grub_uint32_t *) 0xbfe00110)
  45 #endif
  46 #define GRUB_MACHINE_PCI_WIN_MASK_SIZE    6
  47 #define GRUB_MACHINE_PCI_WIN_MASK         ((1 << GRUB_MACHINE_PCI_WIN_MASK_SIZE) - 1)
  48
  49 /* We have 3 PCI windows.  */
  50 #define GRUB_MACHINE_PCI_NUM_WIN          3
  51 /* Each window is 64MiB.  */
  52 #define GRUB_MACHINE_PCI_WIN_SHIFT        26
  53 #define GRUB_MACHINE_PCI_WIN_OFFSET_MASK  ((1 << GRUB_MACHINE_PCI_WIN_SHIFT) - 1)
  54
  55 #define GRUB_MACHINE_PCI_WIN_SIZE         0x04000000
  56 /* Graphical acceleration takes 1 MiB away.  */
  57 #define GRUB_MACHINE_PCI_WIN1_SIZE        0x03f00000
  58
  59 #define GRUB_MACHINE_PCI_WIN1_ADDR        0xb0000000
  60 #define GRUB_MACHINE_PCI_WIN2_ADDR        0xb4000000
  61 #define GRUB_MACHINE_PCI_WIN3_ADDR        0xb8000000
  62
  63 #ifndef ASM_FILE
  64 static inline grub_uint32_t
  65 grub_pci_read (grub_pci_address_t addr)
  66 {
  67   GRUB_MACHINE_PCI_CONF_CTRL_REG = 1 << ((addr >> 11) & 0xf);
  68   return *(volatile grub_uint32_t *) (GRUB_MACHINE_PCI_CONFSPACE
  69                                       | (addr & 0x03ff));
  70 }
  71
  72 static inline grub_uint16_t
  73 grub_pci_read_word (grub_pci_address_t addr)
  74 {
  75   GRUB_MACHINE_PCI_CONF_CTRL_REG = 1 << ((addr >> 11) & 0xf);
  76   return *(volatile grub_uint16_t *) (GRUB_MACHINE_PCI_CONFSPACE
  77                                       | (addr & 0x03ff));
  78 }
  79
  80 static inline grub_uint8_t
  81 grub_pci_read_byte (grub_pci_address_t addr)
  82 {
  83   GRUB_MACHINE_PCI_CONF_CTRL_REG = 1 << ((addr >> 11) & 0xf);
  84   return *(volatile grub_uint8_t *) (GRUB_MACHINE_PCI_CONFSPACE
  85                                      | (addr & 0x03ff));
  86 }
  87
  88 static inline void
  89 grub_pci_write (grub_pci_address_t addr, grub_uint32_t data)
  90 {
  91   GRUB_MACHINE_PCI_CONF_CTRL_REG = 1 << ((addr >> 11) & 0xf);
  92   *(volatile grub_uint32_t *) (GRUB_MACHINE_PCI_CONFSPACE
  93                                | (addr & 0x03ff)) = data;
  94 }
  95
  96 static inline void
  97 grub_pci_write_word (grub_pci_address_t addr, grub_uint16_t data)
  98 {
  99   GRUB_MACHINE_PCI_CONF_CTRL_REG = 1 << ((addr >> 11) & 0xf);
 100   *(volatile grub_uint16_t *) (GRUB_MACHINE_PCI_CONFSPACE
 101                                | (addr & 0x03ff)) = data;
 102 }
 103
 104 static inline void
 105 grub_pci_write_byte (grub_pci_address_t addr, grub_uint8_t data)
 106 {
 107   GRUB_MACHINE_PCI_CONF_CTRL_REG = 1 << ((addr >> 11) & 0xf);
 108   *(volatile grub_uint8_t *) (GRUB_MACHINE_PCI_CONFSPACE
 109                               | (addr & 0x03ff)) = data;
 110 }
 111
 112 volatile void *
 113 EXPORT_FUNC (grub_pci_device_map_range) (grub_pci_device_t dev,
 114                                          grub_addr_t base, grub_size_t size);
 115 void
 116 EXPORT_FUNC (grub_pci_device_unmap_range) (grub_pci_device_t dev,
 117                                            volatile void *mem,
 118                                            grub_size_t size);
 119 #endif
 120
 121 #endif /* GRUB_MACHINE_PCI_H */