@@ -477,6 +477,7 @@ config MACH_LOONGSON64
select IRQ_MIPS_CPU
select NR_CPUS_DEFAULT_4
select USE_GENERIC_EARLY_PRINTK_8250
+ select PCI_DRIVERS_GENERIC
select SYS_HAS_CPU_LOONGSON64
select SYS_HAS_EARLY_PRINTK
select SYS_SUPPORTS_SMP
@@ -8,6 +8,6 @@ obj-$(CONFIG_MACH_LOONGSON64) += cop2-ex.o platform.o acpi_init.o dma.o \
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_NUMA) += numa.o
obj-$(CONFIG_RS780_HPET) += hpet.o
-obj-$(CONFIG_PCI) += pci.o
obj-$(CONFIG_LOONGSON_MC146818) += rtc.o
obj-$(CONFIG_SUSPEND) += pm.o
+obj-$(CONFIG_PCI_QUIRKS) += vbios_quirk.o
new file mode 100644
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/pci.h>
+#include <loongson.h>
+
+static void pci_fixup_radeon(struct pci_dev *pdev)
+{
+ struct resource *res = &pdev->resource[PCI_ROM_RESOURCE];
+
+ if (res->start)
+ return;
+
+ if (!loongson_sysconf.vgabios_addr)
+ return;
+
+ pci_disable_rom(pdev);
+ if (res->parent)
+ release_resource(res);
+
+ res->start = virt_to_phys((void *) loongson_sysconf.vgabios_addr);
+ res->end = res->start + 256*1024 - 1;
+ res->flags = IORESOURCE_MEM | IORESOURCE_ROM_SHADOW |
+ IORESOURCE_PCI_FIXED;
+
+ dev_info(&pdev->dev, "BAR %d: assigned %pR for Radeon ROM\n",
+ PCI_ROM_RESOURCE, res);
+}
+DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_ATI, 0x9615,
+ PCI_CLASS_DISPLAY_VGA, 8, pci_fixup_radeon);
@@ -35,7 +35,6 @@ obj-$(CONFIG_LASAT) += pci-lasat.o
obj-$(CONFIG_MIPS_COBALT) += fixup-cobalt.o
obj-$(CONFIG_LEMOTE_FULOONG2E) += fixup-fuloong2e.o ops-loongson2.o
obj-$(CONFIG_LEMOTE_MACH2F) += fixup-lemote2f.o ops-loongson2.o
-obj-$(CONFIG_MACH_LOONGSON64) += fixup-loongson3.o ops-loongson3.o
obj-$(CONFIG_MIPS_MALTA) += fixup-malta.o pci-malta.o
obj-$(CONFIG_PMC_MSP7120_GW) += fixup-pmcmsp.o ops-pmcmsp.o
obj-$(CONFIG_PMC_MSP7120_EVAL) += fixup-pmcmsp.o ops-pmcmsp.o
deleted file mode 100644
@@ -1,71 +0,0 @@
-/*
- * fixup-loongson3.c
- *
- * Copyright (C) 2012 Lemote, Inc.
- * Author: Xiang Yu, xiangy@lemote.com
- * Chen Huacai, chenhc@lemote.com
- *
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include <linux/pci.h>
-#include <boot_param.h>
-
-static void print_fixup_info(const struct pci_dev *pdev)
-{
- dev_info(&pdev->dev, "Device %x:%x, irq %d\n",
- pdev->vendor, pdev->device, pdev->irq);
-}
-
-int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-{
- print_fixup_info(dev);
- return dev->irq;
-}
-
-static void pci_fixup_radeon(struct pci_dev *pdev)
-{
- struct resource *res = &pdev->resource[PCI_ROM_RESOURCE];
-
- if (res->start)
- return;
-
- if (!loongson_sysconf.vgabios_addr)
- return;
-
- pci_disable_rom(pdev);
- if (res->parent)
- release_resource(res);
-
- res->start = virt_to_phys((void *) loongson_sysconf.vgabios_addr);
- res->end = res->start + 256*1024 - 1;
- res->flags = IORESOURCE_MEM | IORESOURCE_ROM_SHADOW |
- IORESOURCE_PCI_FIXED;
-
- dev_info(&pdev->dev, "BAR %d: assigned %pR for Radeon ROM\n",
- PCI_ROM_RESOURCE, res);
-}
-
-DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_ATI, PCI_ANY_ID,
- PCI_CLASS_DISPLAY_VGA, 8, pci_fixup_radeon);
-
-/* Do platform specific device initialization at pci_enable_device() time */
-int pcibios_plat_dev_init(struct pci_dev *dev)
-{
- return 0;
-}
deleted file mode 100644
@@ -1,116 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-
-#include <asm/mips-boards/bonito64.h>
-
-#include <loongson.h>
-
-#define PCI_ACCESS_READ 0
-#define PCI_ACCESS_WRITE 1
-
-#define HT1LO_PCICFG_BASE 0x1a000000
-#define HT1LO_PCICFG_BASE_TP1 0x1b000000
-
-static int loongson3_pci_config_access(unsigned char access_type,
- struct pci_bus *bus, unsigned int devfn,
- int where, u32 *data)
-{
- unsigned char busnum = bus->number;
- int function = PCI_FUNC(devfn);
- int device = PCI_SLOT(devfn);
- int reg = where & ~3;
- void *addrp;
- u64 addr;
-
- if (where < PCI_CFG_SPACE_SIZE) { /* standard config */
- addr = (busnum << 16) | (device << 11) | (function << 8) | reg;
- if (busnum == 0) {
- if (device > 31)
- return PCIBIOS_DEVICE_NOT_FOUND;
- addrp = (void *)TO_UNCAC(HT1LO_PCICFG_BASE | addr);
- } else {
- addrp = (void *)TO_UNCAC(HT1LO_PCICFG_BASE_TP1 | addr);
- }
- } else if (where < PCI_CFG_SPACE_EXP_SIZE) { /* extended config */
- struct pci_dev *rootdev;
-
- rootdev = pci_get_domain_bus_and_slot(0, 0, 0);
- if (!rootdev)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- addr = pci_resource_start(rootdev, 3);
- if (!addr)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- addr |= busnum << 20 | device << 15 | function << 12 | reg;
- addrp = (void *)TO_UNCAC(addr);
- } else {
- return PCIBIOS_DEVICE_NOT_FOUND;
- }
-
- if (access_type == PCI_ACCESS_WRITE)
- writel(*data, addrp);
- else {
- *data = readl(addrp);
- if (*data == 0xffffffff) {
- *data = -1;
- return PCIBIOS_DEVICE_NOT_FOUND;
- }
- }
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int loongson3_pci_pcibios_read(struct pci_bus *bus, unsigned int devfn,
- int where, int size, u32 *val)
-{
- u32 data = 0;
- int ret = loongson3_pci_config_access(PCI_ACCESS_READ,
- bus, devfn, where, &data);
-
- if (ret != PCIBIOS_SUCCESSFUL)
- return ret;
-
- if (size == 1)
- *val = (data >> ((where & 3) << 3)) & 0xff;
- else if (size == 2)
- *val = (data >> ((where & 3) << 3)) & 0xffff;
- else
- *val = data;
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int loongson3_pci_pcibios_write(struct pci_bus *bus, unsigned int devfn,
- int where, int size, u32 val)
-{
- u32 data = 0;
- int ret;
-
- if (size == 4)
- data = val;
- else {
- ret = loongson3_pci_config_access(PCI_ACCESS_READ,
- bus, devfn, where, &data);
- if (ret != PCIBIOS_SUCCESSFUL)
- return ret;
-
- if (size == 1)
- data = (data & ~(0xff << ((where & 3) << 3))) |
- (val << ((where & 3) << 3));
- else if (size == 2)
- data = (data & ~(0xffff << ((where & 3) << 3))) |
- (val << ((where & 3) << 3));
- }
-
- ret = loongson3_pci_config_access(PCI_ACCESS_WRITE,
- bus, devfn, where, &data);
-
- return ret;
-}
-
-struct pci_ops loongson_pci_ops = {
- .read = loongson3_pci_pcibios_read,
- .write = loongson3_pci_pcibios_write
-};
We can now enable generic PCI driver in Kconfig, and remove legacy PCI driver code. Radeon vbios quirk is moved to the platform folder to fit the new structure. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> --- arch/mips/Kconfig | 1 + arch/mips/loongson64/Makefile | 2 +- arch/mips/loongson64/vbios_quirk.c | 29 ++++++++ arch/mips/pci/Makefile | 1 - arch/mips/pci/fixup-loongson3.c | 71 ------------------ arch/mips/pci/ops-loongson3.c | 116 ----------------------------- 6 files changed, 31 insertions(+), 189 deletions(-) create mode 100644 arch/mips/loongson64/vbios_quirk.c delete mode 100644 arch/mips/pci/fixup-loongson3.c delete mode 100644 arch/mips/pci/ops-loongson3.c