From ff32b062ea6d16a1c53d57da0ac9419c9d015534 Mon Sep 17 00:00:00 2001 From: Yoichi Yuasa Date: Mon, 30 Jul 2007 22:40:35 +0900 Subject: [MIPS] DDB5477: Remove support Signed-off-by: Yoichi Yuasa Signed-off-by: Ralf Baechle --- arch/mips/pci/ops-ddb5477.c | 278 -------------------------------------------- 1 file changed, 278 deletions(-) delete mode 100644 arch/mips/pci/ops-ddb5477.c (limited to 'arch/mips/pci/ops-ddb5477.c') diff --git a/arch/mips/pci/ops-ddb5477.c b/arch/mips/pci/ops-ddb5477.c deleted file mode 100644 index 8e57d4c5d90f..000000000000 --- a/arch/mips/pci/ops-ddb5477.c +++ /dev/null @@ -1,278 +0,0 @@ -/*********************************************************************** - * Copyright 2001 MontaVista Software Inc. - * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net - * - * arch/mips/ddb5xxx/ddb5477/pci_ops.c - * Define the pci_ops for DB5477. - * - * Much of the code is derived from the original DDB5074 port by - * Geert Uytterhoeven - * - * 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. - *********************************************************************** - */ - -/* - * DDB5477 has two PCI channels, external PCI and IOPIC (internal) - * Therefore we provide two sets of pci_ops. - */ -#include -#include -#include - -#include -#include - -#include - -/* - * config_swap structure records what set of pdar/pmr are used - * to access pci config space. It also provides a place hold the - * original values for future restoring. - */ -struct pci_config_swap { - u32 pdar; - u32 pmr; - u32 config_base; - u32 config_size; - u32 pdar_backup; - u32 pmr_backup; -}; - -/* - * On DDB5477, we have two sets of swap registers, for ext PCI and IOPCI. - */ -struct pci_config_swap ext_pci_swap = { - DDB_PCIW0, - DDB_PCIINIT00, - DDB_PCI0_CONFIG_BASE, - DDB_PCI0_CONFIG_SIZE -}; -struct pci_config_swap io_pci_swap = { - DDB_IOPCIW0, - DDB_PCIINIT01, - DDB_PCI1_CONFIG_BASE, - DDB_PCI1_CONFIG_SIZE -}; - - -/* - * access config space - */ -static inline u32 ddb_access_config_base(struct pci_config_swap *swap, u32 bus, /* 0 means top level bus */ - u32 slot_num) -{ - u32 pci_addr = 0; - u32 pciinit_offset = 0; - u32 virt_addr; - u32 option; - - /* minimum pdar (window) size is 2MB */ - db_assert(swap->config_size >= (2 << 20)); - - db_assert(slot_num < (1 << 5)); - db_assert(bus < (1 << 8)); - - /* backup registers */ - swap->pdar_backup = ddb_in32(swap->pdar); - swap->pmr_backup = ddb_in32(swap->pmr); - - /* set the pdar (pci window) register */ - ddb_set_pdar(swap->pdar, swap->config_base, swap->config_size, 32, /* 32 bit wide */ - 0, /* not on local memory bus */ - 0); /* not visible from PCI bus (N/A) */ - - /* - * calcuate the absolute pci config addr; - * according to the spec, we start scanning from adr:11 (0x800) - */ - if (bus == 0) { - /* type 0 config */ - pci_addr = 0x800 << slot_num; - } else { - /* type 1 config */ - pci_addr = (bus << 16) | (slot_num << 11); - } - - /* - * if pci_addr is less than pci config window size, we set - * pciinit_offset to 0 and adjust the virt_address. - * Otherwise we will try to adjust pciinit_offset. - */ - if (pci_addr < swap->config_size) { - virt_addr = KSEG1ADDR(swap->config_base + pci_addr); - pciinit_offset = 0; - } else { - db_assert((pci_addr & (swap->config_size - 1)) == 0); - virt_addr = KSEG1ADDR(swap->config_base); - pciinit_offset = pci_addr; - } - - /* set the pmr register */ - option = DDB_PCI_ACCESS_32; - if (bus != 0) - option |= DDB_PCI_CFGTYPE1; - ddb_set_pmr(swap->pmr, DDB_PCICMD_CFG, pciinit_offset, option); - - return virt_addr; -} - -static inline void ddb_close_config_base(struct pci_config_swap *swap) -{ - ddb_out32(swap->pdar, swap->pdar_backup); - ddb_out32(swap->pmr, swap->pmr_backup); -} - -static int read_config_dword(struct pci_config_swap *swap, - struct pci_bus *bus, u32 devfn, u32 where, - u32 * val) -{ - u32 bus_num, slot_num, func_num; - u32 base; - - db_assert((where & 3) == 0); - db_assert(where < (1 << 8)); - - /* check if the bus is top-level */ - if (bus->parent != NULL) { - bus_num = bus->number; - db_assert(bus_num != 0); - } else { - bus_num = 0; - } - - slot_num = PCI_SLOT(devfn); - func_num = PCI_FUNC(devfn); - base = ddb_access_config_base(swap, bus_num, slot_num); - *val = *(volatile u32 *) (base + (func_num << 8) + where); - ddb_close_config_base(swap); - return PCIBIOS_SUCCESSFUL; -} - -static int read_config_word(struct pci_config_swap *swap, - struct pci_bus *bus, u32 devfn, u32 where, - u16 * val) -{ - int status; - u32 result; - - db_assert((where & 1) == 0); - - status = read_config_dword(swap, bus, devfn, where & ~3, &result); - if (where & 2) - result >>= 16; - *val = result & 0xffff; - return status; -} - -static int read_config_byte(struct pci_config_swap *swap, - struct pci_bus *bus, u32 devfn, u32 where, - u8 * val) -{ - int status; - u32 result; - - status = read_config_dword(swap, bus, devfn, where & ~3, &result); - if (where & 1) - result >>= 8; - if (where & 2) - result >>= 16; - *val = result & 0xff; - - return status; -} - -static int write_config_dword(struct pci_config_swap *swap, - struct pci_bus *bus, u32 devfn, u32 where, - u32 val) -{ - u32 bus_num, slot_num, func_num; - u32 base; - - db_assert((where & 3) == 0); - db_assert(where < (1 << 8)); - - /* check if the bus is top-level */ - if (bus->parent != NULL) { - bus_num = bus->number; - db_assert(bus_num != 0); - } else { - bus_num = 0; - } - - slot_num = PCI_SLOT(devfn); - func_num = PCI_FUNC(devfn); - base = ddb_access_config_base(swap, bus_num, slot_num); - *(volatile u32 *) (base + (func_num << 8) + where) = val; - ddb_close_config_base(swap); - return PCIBIOS_SUCCESSFUL; -} - -static int write_config_word(struct pci_config_swap *swap, - struct pci_bus *bus, u32 devfn, u32 where, u16 val) -{ - int status, shift = 0; - u32 result; - - db_assert((where & 1) == 0); - - status = read_config_dword(swap, bus, devfn, where & ~3, &result); - if (status != PCIBIOS_SUCCESSFUL) - return status; - - if (where & 2) - shift += 16; - result &= ~(0xffff << shift); - result |= val << shift; - return write_config_dword(swap, bus, devfn, where & ~3, result); -} - -static int write_config_byte(struct pci_config_swap *swap, - struct pci_bus *bus, u32 devfn, u32 where, u8 val) -{ - int status, shift = 0; - u32 result; - - status = read_config_dword(swap, bus, devfn, where & ~3, &result); - if (status != PCIBIOS_SUCCESSFUL) - return status; - - if (where & 2) - shift += 16; - if (where & 1) - shift += 8; - result &= ~(0xff << shift); - result |= val << shift; - return write_config_dword(swap, bus, devfn, where & ~3, result); -} - -#define MAKE_PCI_OPS(prefix, rw, pciswap, star) \ -static int prefix##_##rw##_config(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 star val) \ -{ \ - if (size == 1) \ - return rw##_config_byte(pciswap, bus, devfn, where, (u8 star)val); \ - else if (size == 2) \ - return rw##_config_word(pciswap, bus, devfn, where, (u16 star)val); \ - /* Size must be 4 */ \ - return rw##_config_dword(pciswap, bus, devfn, where, val); \ -} - -MAKE_PCI_OPS(extpci, read, &ext_pci_swap, *) -MAKE_PCI_OPS(extpci, write, &ext_pci_swap,) - -MAKE_PCI_OPS(iopci, read, &io_pci_swap, *) -MAKE_PCI_OPS(iopci, write, &io_pci_swap,) - -struct pci_ops ddb5477_ext_pci_ops = { - .read = extpci_read_config, - .write = extpci_write_config -}; - - -struct pci_ops ddb5477_io_pci_ops = { - .read = iopci_read_config, - .write = iopci_write_config -}; -- cgit v1.2.3