diff options
Diffstat (limited to 'arch/mips/pci')
-rw-r--r-- | arch/mips/pci/Makefile | 1 | ||||
-rw-r--r-- | arch/mips/pci/fixup-lm2e.c | 242 | ||||
-rw-r--r-- | arch/mips/pci/ops-bonito64.c | 88 |
3 files changed, 276 insertions, 55 deletions
diff --git a/arch/mips/pci/Makefile b/arch/mips/pci/Makefile index a3e741e190f2..276a10b06bb5 100644 --- a/arch/mips/pci/Makefile +++ b/arch/mips/pci/Makefile @@ -28,6 +28,7 @@ obj-$(CONFIG_MIPS_COBALT) += fixup-cobalt.o obj-$(CONFIG_SOC_AU1500) += fixup-au1000.o ops-au1000.o obj-$(CONFIG_SOC_AU1550) += fixup-au1000.o ops-au1000.o obj-$(CONFIG_SOC_PNX8550) += fixup-pnx8550.o ops-pnx8550.o +obj-$(CONFIG_LEMOTE_FULONG) += fixup-lm2e.o ops-bonito64.o obj-$(CONFIG_MIPS_MALTA) += fixup-malta.o obj-$(CONFIG_MOMENCO_OCELOT) += fixup-ocelot.o pci-ocelot.o obj-$(CONFIG_MOMENCO_OCELOT_3) += fixup-ocelot3.o diff --git a/arch/mips/pci/fixup-lm2e.c b/arch/mips/pci/fixup-lm2e.c new file mode 100644 index 000000000000..e18ae4f574c1 --- /dev/null +++ b/arch/mips/pci/fixup-lm2e.c @@ -0,0 +1,242 @@ +/* + * fixup-lm2e.c + * + * Copyright (C) 2004 ICT CAS + * Author: Li xiaoyu, ICT CAS + * lixy@ict.ac.cn + * + * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology + * Author: Fuxin Zhang, zhangfx@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. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ +#include <linux/init.h> +#include <linux/pci.h> +#include <asm/mips-boards/bonito64.h> + +/* South bridge slot number is set by the pci probe process */ +static u8 sb_slot = 5; + +int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) +{ + int irq = 0; + + if (slot == sb_slot) { + switch (PCI_FUNC(dev->devfn)) { + case 2: + irq = 10; + break; + case 3: + irq = 11; + break; + case 5: + irq = 9; + break; + } + } else { + irq = BONITO_IRQ_BASE + 25 + pin; + } + return irq; + +} + +/* Do platform specific device initialization at pci_enable_device() time */ +int pcibios_plat_dev_init(struct pci_dev *dev) +{ + return 0; +} + +static void __init loongson2e_nec_fixup(struct pci_dev *pdev) +{ + unsigned int val; + + /* Configues port 1, 2, 3, 4 to be validate*/ + pci_read_config_dword(pdev, 0xe0, &val); + pci_write_config_dword(pdev, 0xe0, (val & ~7) | 0x4); + + /* System clock is 48-MHz Oscillator. */ + pci_write_config_dword(pdev, 0xe4, 1 << 5); +} + +static void __init loongson2e_686b_func0_fixup(struct pci_dev *pdev) +{ + unsigned char c; + + sb_slot = PCI_SLOT(pdev->devfn); + + printk(KERN_INFO "via686b fix: ISA bridge\n"); + + /* Enable I/O Recovery time */ + pci_write_config_byte(pdev, 0x40, 0x08); + + /* Enable ISA refresh */ + pci_write_config_byte(pdev, 0x41, 0x01); + + /* disable ISA line buffer */ + pci_write_config_byte(pdev, 0x45, 0x00); + + /* Gate INTR, and flush line buffer */ + pci_write_config_byte(pdev, 0x46, 0xe0); + + /* Disable PCI Delay Transaction, Enable EISA ports 4D0/4D1. */ + /* pci_write_config_byte(pdev, 0x47, 0x20); */ + + /* + * enable PCI Delay Transaction, Enable EISA ports 4D0/4D1. + * enable time-out timer + */ + pci_write_config_byte(pdev, 0x47, 0xe6); + + /* + * enable level trigger on pci irqs: 9,10,11,13 + * important! without this PCI interrupts won't work + */ + outb(0x2e, 0x4d1); + + /* 512 K PCI Decode */ + pci_write_config_byte(pdev, 0x48, 0x01); + + /* Wait for PGNT before grant to ISA Master/DMA */ + pci_write_config_byte(pdev, 0x4a, 0x84); + + /* + * Plug'n'Play + * + * Parallel DRQ 3, Floppy DRQ 2 (default) + */ + pci_write_config_byte(pdev, 0x50, 0x0e); + + /* + * IRQ Routing for Floppy and Parallel port + * + * IRQ 6 for floppy, IRQ 7 for parallel port + */ + pci_write_config_byte(pdev, 0x51, 0x76); + + /* IRQ Routing for serial ports (take IRQ 3 and 4) */ + pci_write_config_byte(pdev, 0x52, 0x34); + + /* All IRQ's level triggered. */ + pci_write_config_byte(pdev, 0x54, 0x00); + + /* route PIRQA-D irq */ + pci_write_config_byte(pdev, 0x55, 0x90); /* bit 7-4, PIRQA */ + pci_write_config_byte(pdev, 0x56, 0xba); /* bit 7-4, PIRQC; */ + /* 3-0, PIRQB */ + pci_write_config_byte(pdev, 0x57, 0xd0); /* bit 7-4, PIRQD */ + + /* enable function 5/6, audio/modem */ + pci_read_config_byte(pdev, 0x85, &c); + c &= ~(0x3 << 2); + pci_write_config_byte(pdev, 0x85, c); + + printk(KERN_INFO"via686b fix: ISA bridge done\n"); +} + +static void __init loongson2e_686b_func1_fixup(struct pci_dev *pdev) +{ + printk(KERN_INFO"via686b fix: IDE\n"); + + /* Modify IDE controller setup */ + pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 48); + pci_write_config_byte(pdev, PCI_COMMAND, + PCI_COMMAND_IO | PCI_COMMAND_MEMORY | + PCI_COMMAND_MASTER); + pci_write_config_byte(pdev, 0x40, 0x0b); + /* legacy mode */ + pci_write_config_byte(pdev, 0x42, 0x09); + +#if 1/* play safe, otherwise we may see notebook's usb keyboard lockup */ + /* disable read prefetch/write post buffers */ + pci_write_config_byte(pdev, 0x41, 0x02); + + /* use 3/4 as fifo thresh hold */ + pci_write_config_byte(pdev, 0x43, 0x0a); + pci_write_config_byte(pdev, 0x44, 0x00); + + pci_write_config_byte(pdev, 0x45, 0x00); +#else + pci_write_config_byte(pdev, 0x41, 0xc2); + pci_write_config_byte(pdev, 0x43, 0x35); + pci_write_config_byte(pdev, 0x44, 0x1c); + + pci_write_config_byte(pdev, 0x45, 0x10); +#endif + + printk(KERN_INFO"via686b fix: IDE done\n"); +} + +static void __init loongson2e_686b_func2_fixup(struct pci_dev *pdev) +{ + /* irq routing */ + pci_write_config_byte(pdev, PCI_INTERRUPT_LINE, 10); +} + +static void __init loongson2e_686b_func3_fixup(struct pci_dev *pdev) +{ + /* irq routing */ + pci_write_config_byte(pdev, PCI_INTERRUPT_LINE, 11); +} + +static void __init loongson2e_686b_func5_fixup(struct pci_dev *pdev) +{ + unsigned int val; + unsigned char c; + + /* enable IO */ + pci_write_config_byte(pdev, PCI_COMMAND, + PCI_COMMAND_IO | PCI_COMMAND_MEMORY | + PCI_COMMAND_MASTER); + pci_read_config_dword(pdev, 0x4, &val); + pci_write_config_dword(pdev, 0x4, val | 1); + + /* route ac97 IRQ */ + pci_write_config_byte(pdev, 0x3c, 9); + + pci_read_config_byte(pdev, 0x8, &c); + + /* link control: enable link & SGD PCM output */ + pci_write_config_byte(pdev, 0x41, 0xcc); + + /* disable game port, FM, midi, sb, enable write to reg2c-2f */ + pci_write_config_byte(pdev, 0x42, 0x20); + + /* we are using Avance logic codec */ + pci_write_config_word(pdev, 0x2c, 0x1005); + pci_write_config_word(pdev, 0x2e, 0x4710); + pci_read_config_dword(pdev, 0x2c, &val); + + pci_write_config_byte(pdev, 0x42, 0x0); +} + +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, + loongson2e_686b_func0_fixup); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_1, + loongson2e_686b_func1_fixup); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_2, + loongson2e_686b_func2_fixup); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, + loongson2e_686b_func3_fixup); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_5, + loongson2e_686b_func5_fixup); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_USB, + loongson2e_nec_fixup); diff --git a/arch/mips/pci/ops-bonito64.c b/arch/mips/pci/ops-bonito64.c index dc35270b65a2..f742c51acf0d 100644 --- a/arch/mips/pci/ops-bonito64.c +++ b/arch/mips/pci/ops-bonito64.c @@ -29,83 +29,60 @@ #define PCI_ACCESS_READ 0 #define PCI_ACCESS_WRITE 1 -/* - * PCI configuration cycle AD bus definition - */ -/* Type 0 */ -#define PCI_CFG_TYPE0_REG_SHF 0 -#define PCI_CFG_TYPE0_FUNC_SHF 8 +#ifdef CONFIG_LEMOTE_FULONG +#define CFG_SPACE_REG(offset) (void *)CKSEG1ADDR(BONITO_PCICFG_BASE | (offset)) +#define ID_SEL_BEGIN 11 +#else +#define CFG_SPACE_REG(offset) (void *)CKSEG1ADDR(_pcictrl_bonito_pcicfg + (offset)) +#define ID_SEL_BEGIN 10 +#endif +#define MAX_DEV_NUM (31 - ID_SEL_BEGIN) -/* Type 1 */ -#define PCI_CFG_TYPE1_REG_SHF 0 -#define PCI_CFG_TYPE1_FUNC_SHF 8 -#define PCI_CFG_TYPE1_DEV_SHF 11 -#define PCI_CFG_TYPE1_BUS_SHF 16 static int bonito64_pcibios_config_access(unsigned char access_type, struct pci_bus *bus, unsigned int devfn, int where, u32 * data) { - unsigned char busnum = bus->number; + u32 busnum = bus->number; + u32 addr, type; u32 dummy; - u64 pci_addr; - - /* Algorithmics Bonito64 system controller. */ + void *addrp; + int device = PCI_SLOT(devfn); + int function = PCI_FUNC(devfn); + int reg = where & ~3; - if ((busnum == 0) && (PCI_SLOT(devfn) > 21)) { - /* We number bus 0 devices from 0..21 */ - return -1; - } - - /* Clear cause register bits */ - BONITO_PCICMD |= (BONITO_PCICMD_MABORT_CLR | - BONITO_PCICMD_MTABORT_CLR); - - /* - * Setup pattern to be used as PCI "address" for - * Type 0 cycle - */ if (busnum == 0) { - /* IDSEL */ - pci_addr = (u64) 1 << (PCI_SLOT(devfn) + 10); - } else { - /* Bus number */ - pci_addr = busnum << PCI_CFG_TYPE1_BUS_SHF; - - /* Device number */ - pci_addr |= - PCI_SLOT(devfn) << PCI_CFG_TYPE1_DEV_SHF; - } - - /* Function (same for Type 0/1) */ - pci_addr |= PCI_FUNC(devfn) << PCI_CFG_TYPE0_FUNC_SHF; - - /* Register number (same for Type 0/1) */ - pci_addr |= (where & ~0x3) << PCI_CFG_TYPE0_REG_SHF; + /* Type 0 configuration for onboard PCI bus */ + if (device > MAX_DEV_NUM) + return -1; - if (busnum == 0) { - /* Type 0 */ - BONITO_PCIMAP_CFG = pci_addr >> 16; + addr = (1 << (device + ID_SEL_BEGIN)) | (function << 8) | reg; + type = 0; } else { - /* Type 1 */ - BONITO_PCIMAP_CFG = (pci_addr >> 16) | 0x10000; + /* Type 1 configuration for offboard PCI bus */ + addr = (busnum << 16) | (device << 11) | (function << 8) | reg; + type = 0x10000; } - pci_addr &= 0xffff; + /* Clear aborts */ + BONITO_PCICMD |= BONITO_PCICMD_MABORT_CLR | BONITO_PCICMD_MTABORT_CLR; + + BONITO_PCIMAP_CFG = (addr >> 16) | type; /* Flush Bonito register block */ dummy = BONITO_PCIMAP_CFG; - iob(); /* sync */ + mmiowb(); - /* Perform access */ + addrp = CFG_SPACE_REG(addr & 0xffff); if (access_type == PCI_ACCESS_WRITE) { - *(volatile u32 *) (_pcictrl_bonito_pcicfg + (u32)pci_addr) = *(u32 *) data; - + writel(cpu_to_le32(*data), addrp); +#ifndef CONFIG_LEMOTE_FULONG /* Wait till done */ while (BONITO_PCIMSTAT & 0xF); +#endif } else { - *(u32 *) data = *(volatile u32 *) (_pcictrl_bonito_pcicfg + (u32)pci_addr); + *data = le32_to_cpu(readl(addrp)); } /* Detect Master/Target abort */ @@ -121,6 +98,7 @@ static int bonito64_pcibios_config_access(unsigned char access_type, } return 0; + } |