diff options
Diffstat (limited to 'include/grub/mips/yeeloong/pci.h')
| -rw-r--r-- | include/grub/mips/yeeloong/pci.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/include/grub/mips/yeeloong/pci.h b/include/grub/mips/yeeloong/pci.h new file mode 100644 index 0000000..199bac0 --- /dev/null +++ b/include/grub/mips/yeeloong/pci.h @@ -0,0 +1,121 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008 Free Software Foundation, Inc. + * + * GRUB 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 3 of the License, or + * (at your option) any later version. + * + * GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef GRUB_MACHINE_PCI_H +#define GRUB_MACHINE_PCI_H 1 + +#ifndef ASM_FILE +#include <grub/types.h> +#include <grub/cpu/io.h> +#endif + +#define GRUB_YEELOONG_OHCI_PCIID 0x00351033 +#define GRUB_YEELOONG_EHCI_PCIID 0x00e01033 +#define GRUB_YEELOONG_OHCI_GHOST_FUNCTION 4 +#define GRUB_YEELOONG_EHCI_GHOST_FUNCTION 5 + +#define GRUB_PCI_NUM_BUS 1 +#define GRUB_PCI_NUM_DEVICES 16 + +#define GRUB_MACHINE_PCI_IO_BASE 0xbfd00000 +#define GRUB_MACHINE_PCI_CONFSPACE 0xbfe80000 +#define GRUB_MACHINE_PCI_CONTROLLER_HEADER 0xbfe00000 + +#define GRUB_MACHINE_PCI_CONF_CTRL_REG_ADDR 0xbfe00118 + +#ifndef ASM_FILE +#define GRUB_MACHINE_PCI_CONF_CTRL_REG (*(volatile grub_uint32_t *) \ + GRUB_MACHINE_PCI_CONF_CTRL_REG_ADDR) +#define GRUB_MACHINE_PCI_IO_CTRL_REG (*(volatile grub_uint32_t *) 0xbfe00110) +#endif +#define GRUB_MACHINE_PCI_WIN_MASK_SIZE 6 +#define GRUB_MACHINE_PCI_WIN_MASK ((1 << GRUB_MACHINE_PCI_WIN_MASK_SIZE) - 1) + +/* We have 3 PCI windows. */ +#define GRUB_MACHINE_PCI_NUM_WIN 3 +/* Each window is 64MiB. */ +#define GRUB_MACHINE_PCI_WIN_SHIFT 26 +#define GRUB_MACHINE_PCI_WIN_OFFSET_MASK ((1 << GRUB_MACHINE_PCI_WIN_SHIFT) - 1) + +#define GRUB_MACHINE_PCI_WIN_SIZE 0x04000000 +/* Graphical acceleration takes 1 MiB away. */ +#define GRUB_MACHINE_PCI_WIN1_SIZE 0x03f00000 + +#define GRUB_MACHINE_PCI_WIN1_ADDR 0xb0000000 +#define GRUB_MACHINE_PCI_WIN2_ADDR 0xb4000000 +#define GRUB_MACHINE_PCI_WIN3_ADDR 0xb8000000 + +#ifndef ASM_FILE +static inline grub_uint32_t +grub_pci_read (grub_pci_address_t addr) +{ + GRUB_MACHINE_PCI_CONF_CTRL_REG = 1 << ((addr >> 11) & 0xf); + return *(volatile grub_uint32_t *) (GRUB_MACHINE_PCI_CONFSPACE + | (addr & 0x03ff)); +} + +static inline grub_uint16_t +grub_pci_read_word (grub_pci_address_t addr) +{ + GRUB_MACHINE_PCI_CONF_CTRL_REG = 1 << ((addr >> 11) & 0xf); + return *(volatile grub_uint16_t *) (GRUB_MACHINE_PCI_CONFSPACE + | (addr & 0x03ff)); +} + +static inline grub_uint8_t +grub_pci_read_byte (grub_pci_address_t addr) +{ + GRUB_MACHINE_PCI_CONF_CTRL_REG = 1 << ((addr >> 11) & 0xf); + return *(volatile grub_uint8_t *) (GRUB_MACHINE_PCI_CONFSPACE + | (addr & 0x03ff)); +} + +static inline void +grub_pci_write (grub_pci_address_t addr, grub_uint32_t data) +{ + GRUB_MACHINE_PCI_CONF_CTRL_REG = 1 << ((addr >> 11) & 0xf); + *(volatile grub_uint32_t *) (GRUB_MACHINE_PCI_CONFSPACE + | (addr & 0x03ff)) = data; +} + +static inline void +grub_pci_write_word (grub_pci_address_t addr, grub_uint16_t data) +{ + GRUB_MACHINE_PCI_CONF_CTRL_REG = 1 << ((addr >> 11) & 0xf); + *(volatile grub_uint16_t *) (GRUB_MACHINE_PCI_CONFSPACE + | (addr & 0x03ff)) = data; +} + +static inline void +grub_pci_write_byte (grub_pci_address_t addr, grub_uint8_t data) +{ + GRUB_MACHINE_PCI_CONF_CTRL_REG = 1 << ((addr >> 11) & 0xf); + *(volatile grub_uint8_t *) (GRUB_MACHINE_PCI_CONFSPACE + | (addr & 0x03ff)) = data; +} + +volatile void * +EXPORT_FUNC (grub_pci_device_map_range) (grub_pci_device_t dev, + grub_addr_t base, grub_size_t size); +void +EXPORT_FUNC (grub_pci_device_unmap_range) (grub_pci_device_t dev, + volatile void *mem, + grub_size_t size); +#endif + +#endif /* GRUB_MACHINE_PCI_H */ |