From eaff3888742155bd397e45a1c3323c0173042e5b Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Sun, 18 Jun 2006 04:58:57 +0100 Subject: [MIPS] Remove support for NEC DDB5074. As warned several times before. Signed-off-by: Ralf Baechle --- arch/mips/pci/ops-ddb5074.c | 271 -------------------------------------------- 1 file changed, 271 deletions(-) delete mode 100644 arch/mips/pci/ops-ddb5074.c (limited to 'arch/mips/pci/ops-ddb5074.c') diff --git a/arch/mips/pci/ops-ddb5074.c b/arch/mips/pci/ops-ddb5074.c deleted file mode 100644 index 89f97bef4fc..00000000000 --- a/arch/mips/pci/ops-ddb5074.c +++ /dev/null @@ -1,271 +0,0 @@ -/* - * Copyright 2001 MontaVista Software Inc. - * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net - * - * arch/mips/ddb5xxx/ddb5476/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. - * - */ -#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 DDB5476, we have one set of swap registers - */ -struct pci_config_swap ext_pci_swap = { - DDB_PCIW0, - DDB_PCIINIT0, - DDB_PCI_CONFIG_BASE, - DDB_PCI_CONFIG_SIZE -}; - -static int pci_config_workaround = 1; - -/* - * 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 = swap->config_base; - u32 option; - - if (pci_config_workaround) { - if (slot_num == 5) - slot_num = 14; - } else { - if (slot_num == 5) - return DDB_BASE + DDB_PCI_BASE; - } - - /* 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 = 0x00040000 << slot_num; - } else { - /* type 1 config */ - pci_addr = 0x00040000 << slot_num; - panic - ("ddb_access_config_base: we don't support type 1 config Yet"); - } - - /* - * 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_dev *dev, u32 where, u32 * val) -{ - u32 bus, slot_num, func_num; - u32 base; - - db_assert((where & 3) == 0); - db_assert(where < (1 << 8)); - - /* check if the bus is top-level */ - if (dev->bus->parent != NULL) { - bus = dev->bus->number; - db_assert(bus != 0); - } else { - bus = 0; - } - - slot_num = PCI_SLOT(dev->devfn); - func_num = PCI_FUNC(dev->devfn); - base = ddb_access_config_base(swap, bus, 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_dev *dev, u32 where, u16 * val) -{ - int status; - u32 result; - - db_assert((where & 1) == 0); - - status = read_config_dword(swap, dev, 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_dev *dev, u32 where, u8 * val) -{ - int status; - u32 result; - - status = read_config_dword(swap, dev, 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_dev *dev, u32 where, u32 val) -{ - u32 bus, slot_num, func_num; - u32 base; - - db_assert((where & 3) == 0); - db_assert(where < (1 << 8)); - - /* check if the bus is top-level */ - if (dev->bus->parent != NULL) { - bus = dev->bus->number; - db_assert(bus != 0); - } else { - bus = 0; - } - - slot_num = PCI_SLOT(dev->devfn); - func_num = PCI_FUNC(dev->devfn); - base = ddb_access_config_base(swap, bus, 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_dev *dev, u32 where, u16 val) -{ - int status, shift = 0; - u32 result; - - db_assert((where & 1) == 0); - - status = read_config_dword(swap, dev, 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, dev, where & ~3, result); -} - -static int write_config_byte(struct pci_config_swap *swap, - struct pci_dev *dev, u32 where, u8 val) -{ - int status, shift = 0; - u32 result; - - status = read_config_dword(swap, dev, 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, dev, where & ~3, result); -} - -#define MAKE_PCI_OPS(prefix, rw, unitname, unittype, pciswap) \ -static int prefix##_##rw##_config_##unitname(struct pci_dev *dev, int where, unittype val) \ -{ \ - return rw##_config_##unitname(pciswap, \ - dev, \ - where, \ - val); \ -} - -MAKE_PCI_OPS(extpci, read, byte, u8 *, &ext_pci_swap) - MAKE_PCI_OPS(extpci, read, word, u16 *, &ext_pci_swap) - MAKE_PCI_OPS(extpci, read, dword, u32 *, &ext_pci_swap) - - MAKE_PCI_OPS(extpci, write, byte, u8, &ext_pci_swap) - MAKE_PCI_OPS(extpci, write, word, u16, &ext_pci_swap) - MAKE_PCI_OPS(extpci, write, dword, u32, &ext_pci_swap) - -struct pci_ops ddb5476_ext_pci_ops = { - extpci_read_config_byte, - extpci_read_config_word, - extpci_read_config_dword, - extpci_write_config_byte, - extpci_write_config_word, - extpci_write_config_dword -}; -- cgit v1.2.3