diff options
| -rw-r--r-- | arch/powerpc/Makefile | 15 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/Makefile | 4 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/indirect_pci.c | 134 | ||||
| -rw-r--r-- | arch/ppc/syslib/Makefile | 14 |
4 files changed, 143 insertions, 24 deletions
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index 06486406575..a4c605f469d 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -124,15 +124,12 @@ head-$(CONFIG_6xx) += arch/powerpc/kernel/idle_6xx.o head-$(CONFIG_PPC_FPU) += arch/powerpc/kernel/fpu.o endif -core-y += arch/powerpc/kernel/ -core-y += arch/$(OLDARCH)/kernel/ -core-$(CONFIG_PPC32) += arch/powerpc/mm/ -core-$(CONFIG_PPC64) += arch/$(OLDARCH)/mm/ -core-$(CONFIG_PPC32) += arch/powerpc/lib/ -libs-$(CONFIG_PPC64) += arch/$(OLDARCH)/lib/ -core-y += arch/powerpc/sysdev/ -core-y += arch/powerpc/platforms/ -core-$(CONFIG_PPC32) += arch/ppc/syslib/ +core-y += arch/powerpc/kernel/ \ + arch/$(OLDARCH)/kernel/ \ + arch/powerpc/mm/ \ + arch/powerpc/lib/ \ + arch/powerpc/sysdev/ \ + arch/powerpc/platforms/ core-$(CONFIG_MATH_EMULATION) += arch/ppc/math-emu/ core-$(CONFIG_XMON) += arch/powerpc/xmon/ core-$(CONFIG_APUS) += arch/ppc/amiga/ diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile index 26bdcd9a2a4..c649f03acf6 100644 --- a/arch/powerpc/sysdev/Makefile +++ b/arch/powerpc/sysdev/Makefile @@ -1 +1,3 @@ -obj-$(CONFIG_MPIC) += mpic.o +obj-$(CONFIG_MPIC) += mpic.o +indirectpci-$(CONFIG_PPC_PMAC) = indirect_pci.o +obj-$(CONFIG_PPC32) += $(indirectpci-y) diff --git a/arch/powerpc/sysdev/indirect_pci.c b/arch/powerpc/sysdev/indirect_pci.c new file mode 100644 index 00000000000..e7148846970 --- /dev/null +++ b/arch/powerpc/sysdev/indirect_pci.c @@ -0,0 +1,134 @@ +/* + * Support for indirect PCI bridges. + * + * Copyright (C) 1998 Gabriel Paubert. + * + * 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 <linux/kernel.h> +#include <linux/pci.h> +#include <linux/delay.h> +#include <linux/string.h> +#include <linux/init.h> + +#include <asm/io.h> +#include <asm/prom.h> +#include <asm/pci-bridge.h> +#include <asm/machdep.h> + +#ifdef CONFIG_PPC_INDIRECT_PCI_BE +#define PCI_CFG_OUT out_be32 +#else +#define PCI_CFG_OUT out_le32 +#endif + +static int +indirect_read_config(struct pci_bus *bus, unsigned int devfn, int offset, + int len, u32 *val) +{ + struct pci_controller *hose = bus->sysdata; + volatile void __iomem *cfg_data; + u8 cfg_type = 0; + + if (ppc_md.pci_exclude_device) + if (ppc_md.pci_exclude_device(bus->number, devfn)) + return PCIBIOS_DEVICE_NOT_FOUND; + + if (hose->set_cfg_type) + if (bus->number != hose->first_busno) + cfg_type = 1; + + PCI_CFG_OUT(hose->cfg_addr, + (0x80000000 | ((bus->number - hose->bus_offset) << 16) + | (devfn << 8) | ((offset & 0xfc) | cfg_type))); + + /* + * Note: the caller has already checked that offset is + * suitably aligned and that len is 1, 2 or 4. + */ + cfg_data = hose->cfg_data + (offset & 3); + switch (len) { + case 1: + *val = in_8(cfg_data); + break; + case 2: + *val = in_le16(cfg_data); + break; + default: + *val = in_le32(cfg_data); + break; + } + return PCIBIOS_SUCCESSFUL; +} + +static int +indirect_write_config(struct pci_bus *bus, unsigned int devfn, int offset, + int len, u32 val) +{ + struct pci_controller *hose = bus->sysdata; + volatile void __iomem *cfg_data; + u8 cfg_type = 0; + + if (ppc_md.pci_exclude_device) + if (ppc_md.pci_exclude_device(bus->number, devfn)) + return PCIBIOS_DEVICE_NOT_FOUND; + + if (hose->set_cfg_type) + if (bus->number != hose->first_busno) + cfg_type = 1; + + PCI_CFG_OUT(hose->cfg_addr, + (0x80000000 | ((bus->number - hose->bus_offset) << 16) + | (devfn << 8) | ((offset & 0xfc) | cfg_type))); + + /* + * Note: the caller has already checked that offset is + * suitably aligned and that len is 1, 2 or 4. + */ + cfg_data = hose->cfg_data + (offset & 3); + switch (len) { + case 1: + out_8(cfg_data, val); + break; + case 2: + out_le16(cfg_data, val); + break; + default: + out_le32(cfg_data, val); + break; + } + return PCIBIOS_SUCCESSFUL; +} + +static struct pci_ops indirect_pci_ops = +{ + indirect_read_config, + indirect_write_config +}; + +void __init +setup_indirect_pci_nomap(struct pci_controller* hose, void __iomem * cfg_addr, + void __iomem * cfg_data) +{ + hose->cfg_addr = cfg_addr; + hose->cfg_data = cfg_data; + hose->ops = &indirect_pci_ops; +} + +void __init +setup_indirect_pci(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data) +{ + unsigned long base = cfg_addr & PAGE_MASK; + void __iomem *mbase, *addr, *data; + + mbase = ioremap(base, PAGE_SIZE); + addr = mbase + (cfg_addr & ~PAGE_MASK); + if ((cfg_data & PAGE_MASK) != base) + mbase = ioremap(cfg_data & PAGE_MASK, PAGE_SIZE); + data = mbase + (cfg_data & ~PAGE_MASK); + setup_indirect_pci_nomap(hose, addr, data); +} diff --git a/arch/ppc/syslib/Makefile b/arch/ppc/syslib/Makefile index 1b0a84931af..b8d08f33f7e 100644 --- a/arch/ppc/syslib/Makefile +++ b/arch/ppc/syslib/Makefile @@ -5,7 +5,6 @@ CFLAGS_prom_init.o += -fPIC CFLAGS_btext.o += -fPIC -ifneq ($(CONFIG_PPC_MERGE),y) wdt-mpc8xx-$(CONFIG_8xx_WDT) += m8xx_wdt.o obj-$(CONFIG_PPCBUG_NVRAM) += prep_nvram.o @@ -110,16 +109,3 @@ obj-$(CONFIG_PPC_MPC52xx) += mpc52xx_setup.o mpc52xx_pic.o \ ifeq ($(CONFIG_PPC_MPC52xx),y) obj-$(CONFIG_PCI) += mpc52xx_pci.o endif - -else -# Stuff still needed by the merged powerpc sources - -obj-$(CONFIG_PPCBUG_NVRAM) += prep_nvram.o -obj-$(CONFIG_PPC_OF) += prom_init.o prom.o of_device.o -obj-$(CONFIG_PPC_PMAC) += indirect_pci.o -obj-$(CONFIG_PPC_CHRP) += indirect_pci.o i8259.o -obj-$(CONFIG_PPC_PREP) += indirect_pci.o i8259.o todc_time.o -obj-$(CONFIG_BOOTX_TEXT) += btext.o -obj-$(CONFIG_MPC10X_BRIDGE) += mpc10x_common.o indirect_pci.o ppc_sys.o - -endif |