diff options
66 files changed, 7135 insertions, 519 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index fcd1d8f95a2..0a0c88d0039 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -339,14 +339,14 @@ config ARCH_PNX4008 This enables support for Philips PNX4008 mobile platform. config ARCH_PXA - bool "PXA2xx-based" + bool "PXA2xx/PXA3xx-based" depends on MMU select ARCH_MTD_XIP select GENERIC_GPIO select GENERIC_TIME select GENERIC_CLOCKEVENTS help - Support for Intel's PXA2XX processor line. + Support for Intel/Marvell's PXA2xx/PXA3xx processor line. config ARCH_RPC bool "RiscPC" @@ -489,7 +489,7 @@ source arch/arm/mm/Kconfig config IWMMXT bool "Enable iWMMXt support" depends on CPU_XSCALE || CPU_XSC3 - default y if PXA27x + default y if PXA27x || PXA3xx help Enable support for iWMMXt context switching at run time if running on a CPU that supports it. diff --git a/arch/arm/boot/compressed/head-xscale.S b/arch/arm/boot/compressed/head-xscale.S index 236bbe57831..67ea99ef652 100644 --- a/arch/arm/boot/compressed/head-xscale.S +++ b/arch/arm/boot/compressed/head-xscale.S @@ -33,10 +33,6 @@ __XScale_start: bic r0, r0, #0x1000 @ clear Icache mcr p15, 0, r0, c1, c0, 0 -#ifdef CONFIG_ARCH_LUBBOCK - mov r7, #MACH_TYPE_LUBBOCK -#endif - #ifdef CONFIG_ARCH_COTULLA_IDP mov r7, #MACH_TYPE_COTULLA_IDP #endif diff --git a/arch/arm/common/Makefile b/arch/arm/common/Makefile index e1289a256ce..3d0b9fa42f8 100644 --- a/arch/arm/common/Makefile +++ b/arch/arm/common/Makefile @@ -17,3 +17,4 @@ obj-$(CONFIG_SHARPSL_PM) += sharpsl_pm.o obj-$(CONFIG_SHARP_SCOOP) += scoop.o obj-$(CONFIG_ARCH_IXP2000) += uengine.o obj-$(CONFIG_ARCH_IXP23XX) += uengine.o +obj-$(CONFIG_PCI_HOST_ITE8152) += it8152.o diff --git a/arch/arm/common/it8152.c b/arch/arm/common/it8152.c new file mode 100644 index 00000000000..c03de9bfd76 --- /dev/null +++ b/arch/arm/common/it8152.c @@ -0,0 +1,387 @@ +/* + * linux/arch/arm/common/it8152.c + * + * Copyright Compulab Ltd, 2002-2007 + * Mike Rapoport <mike@compulab.co.il> + * + * The DMA bouncing part is taken from arch/arm/mach-ixp4xx/common-pci.c + * (see this file for respective copyrights) + * + * Thanks to Guennadi Liakhovetski <gl@dsa-ac.de> for IRQ enumberation + * and demux code. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/pci.h> +#include <linux/ptrace.h> +#include <linux/interrupt.h> +#include <linux/mm.h> +#include <linux/slab.h> +#include <linux/init.h> +#include <linux/ioport.h> +#include <linux/irq.h> +#include <linux/io.h> + +#include <asm/mach/pci.h> +#include <asm/hardware/it8152.h> + +#define MAX_SLOTS 21 + +static void it8152_mask_irq(unsigned int irq) +{ + if (irq >= IT8152_LD_IRQ(0)) { + __raw_writel((__raw_readl(IT8152_INTC_LDCNIMR) | + (1 << (irq - IT8152_LD_IRQ(0)))), + IT8152_INTC_LDCNIMR); + } else if (irq >= IT8152_LP_IRQ(0)) { + __raw_writel((__raw_readl(IT8152_INTC_LPCNIMR) | + (1 << (irq - IT8152_LP_IRQ(0)))), + IT8152_INTC_LPCNIMR); + } else if (irq >= IT8152_PD_IRQ(0)) { + __raw_writel((__raw_readl(IT8152_INTC_PDCNIMR) | + (1 << (irq - IT8152_PD_IRQ(0)))), + IT8152_INTC_PDCNIMR); + } +} + +static void it8152_unmask_irq(unsigned int irq) +{ + if (irq >= IT8152_LD_IRQ(0)) { + __raw_writel((__raw_readl(IT8152_INTC_LDCNIMR) & + ~(1 << (irq - IT8152_LD_IRQ(0)))), + IT8152_INTC_LDCNIMR); + } else if (irq >= IT8152_LP_IRQ(0)) { + __raw_writel((__raw_readl(IT8152_INTC_LPCNIMR) & + ~(1 << (irq - IT8152_LP_IRQ(0)))), + IT8152_INTC_LPCNIMR); + } else if (irq >= IT8152_PD_IRQ(0)) { + __raw_writel((__raw_readl(IT8152_INTC_PDCNIMR) & + ~(1 << (irq - IT8152_PD_IRQ(0)))), + IT8152_INTC_PDCNIMR); + } +} + +static inline void it8152_irq(int irq) +{ + struct irq_desc *desc; + + printk(KERN_DEBUG "===> %s: irq=%d\n", __FUNCTION__, irq); + + desc = irq_desc + irq; + desc_handle_irq(irq, desc); +} + +static struct irq_chip it8152_irq_chip = { + .name = "it8152", + .ack = it8152_mask_irq, + .mask = it8152_mask_irq, + .unmask = it8152_unmask_irq, +}; + +void it8152_init_irq(void) +{ + int irq; + + __raw_writel((0xffff), IT8152_INTC_PDCNIMR); + __raw_writel((0), IT8152_INTC_PDCNIRR); + __raw_writel((0xffff), IT8152_INTC_LPCNIMR); + __raw_writel((0), IT8152_INTC_LPCNIRR); + __raw_writel((0xffff), IT8152_INTC_LDCNIMR); + __raw_writel((0), IT8152_INTC_LDCNIRR); + + for (irq = IT8152_IRQ(0); irq <= IT8152_LAST_IRQ; irq++) { + set_irq_chip(irq, &it8152_irq_chip); + set_irq_handler(irq, handle_level_irq); + set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); + } +} + +void it8152_irq_demux(unsigned int irq, struct irq_desc *desc) +{ + int bits_pd, bits_lp, bits_ld; + int i; + + printk(KERN_DEBUG "=> %s: irq = %d\n", __FUNCTION__, irq); + + while (1) { + /* Read all */ + bits_pd = __raw_readl(IT8152_INTC_PDCNIRR); + bits_lp = __raw_readl(IT8152_INTC_LPCNIRR); + bits_ld = __raw_readl(IT8152_INTC_LDCNIRR); + + /* Ack */ + __raw_writel((~bits_pd), IT8152_INTC_PDCNIRR); + __raw_writel((~bits_lp), IT8152_INTC_LPCNIRR); + __raw_writel((~bits_ld), IT8152_INTC_LDCNIRR); + + if (!(bits_ld | bits_lp | bits_pd)) { + /* Re-read to guarantee, that there was a moment of + time, when they all three were 0. */ + bits_pd = __raw_readl(IT8152_INTC_PDCNIRR); + bits_lp = __raw_readl(IT8152_INTC_LPCNIRR); + if (!(bits_ld | bits_lp | bits_pd)) + return; + } + + bits_pd &= ((1 << IT8152_PD_IRQ_COUNT) - 1); + while (bits_pd) { + i = __ffs(bits_pd); + it8152_irq(IT8152_PD_IRQ(i)); + bits_pd &= ~(1 << i); + } + + bits_lp &= ((1 << IT8152_LP_IRQ_COUNT) - 1); + while (bits_lp) { + i = __ffs(bits_pd); + it8152_irq(IT8152_LP_IRQ(i)); + bits_lp &= ~(1 << i); + } + + bits_ld &= ((1 << IT8152_LD_IRQ_COUNT) - 1); + while (bits_ld) { + i = __ffs(bits_pd); + it8152_irq(IT8152_LD_IRQ(i)); + bits_ld &= ~(1 << i); + } + } +} + +/* mapping for on-chip devices */ +int __init it8152_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +{ + if ((dev->vendor == PCI_VENDOR_ID_ITE) && + (dev->device == PCI_DEVICE_ID_ITE_8152)) { + if ((dev->class >> 8) == PCI_CLASS_MULTIMEDIA_AUDIO) + return IT8152_AUDIO_INT; + if ((dev->class >> 8) == PCI_CLASS_SERIAL_USB) + return IT8152_USB_INT; + if ((dev->class >> 8) == PCI_CLASS_SYSTEM_DMA) + return IT8152_CDMA_INT; + } + + return 0; +} + +static unsigned long it8152_pci_dev_base_address(struct pci_bus *bus, + unsigned int devfn) +{ + unsigned long addr = 0; + + if (bus->number == 0) { + if (devfn < PCI_DEVFN(MAX_SLOTS, 0)) + addr = (devfn << 8); + } else + addr = (bus->number << 16) | (devfn << 8); + + return addr; +} + +static int it8152_pci_read_config(struct pci_bus *bus, + unsigned int devfn, int where, + int size, u32 *value) +{ + unsigned long addr = it8152_pci_dev_base_address(bus, devfn); + u32 v; + int shift; + + shift = (where & 3); + + __raw_writel((addr + where), IT8152_PCI_CFG_ADDR); + v = (__raw_readl(IT8152_PCI_CFG_DATA) >> (8 * (shift))); + + *value = v; + + return PCIBIOS_SUCCESSFUL; +} + +static int it8152_pci_write_config(struct pci_bus *bus, + unsigned int devfn, int where, + int size, u32 value) +{ + unsigned long addr = it8152_pci_dev_base_address(bus, devfn); + u32 v, vtemp, mask = 0; + int shift; + + if (size == 1) + mask = 0xff; + if (size == 2) + mask = 0xffff; + + shift = (where & 3); + + __raw_writel((addr + where), IT8152_PCI_CFG_ADDR); + vtemp = __raw_readl(IT8152_PCI_CFG_DATA); + + if (mask) + vtemp &= ~(mask << (8 * shift)); + else + vtemp = 0; + + v = (value << (8 * shift)); + __raw_writel((addr + where), IT8152_PCI_CFG_ADDR); + __raw_writel((v | vtemp), IT8152_PCI_CFG_DATA); + + return PCIBIOS_SUCCESSFUL; +} + +static struct pci_ops it8152_ops = { + .read = it8152_pci_read_config, + .write = it8152_pci_write_config, +}; + +static struct resource it8152_io = { + .name = "IT8152 PCI I/O region", + .flags = IORESOURCE_IO, +}; + +static struct resource it8152_mem = { + .name = "IT8152 PCI memory region", + .start = 0x10000000, + .end = 0x13e00000, + .flags = IORESOURCE_MEM, +}; + +/* + * The following functions are needed for DMA bouncing. + * ITE8152 chip can addrees up to 64MByte, so all the devices + * connected to ITE8152 (PCI and USB) should have limited DMA window + */ + +/* + * Setup DMA mask to 64MB on devices connected to ITE8152. Ignore all + * other devices. + */ +static int it8152_pci_platform_notify(struct device *dev) +{ + if (dev->bus == &pci_bus_type) { + if (dev->dma_mask) + *dev->dma_mask = (SZ_64M - 1) | PHYS_OFFSET; + dev->coherent_dma_mask = (SZ_64M - 1) | PHYS_OFFSET; + dmabounce_register_dev(dev, 2048, 4096); + } + return 0; +} + +static int it8152_pci_platform_notify_remove(struct device *dev) +{ + if (dev->bus == &pci_bus_type) + dmabounce_unregister_dev(dev); + + return 0; +} + +int dma_needs_bounce(struct device *dev, dma_addr_t dma_addr, size_t size) +{ + dev_dbg(dev, "%s: dma_addr %08x, size %08x\n", + __FUNCTION__, dma_addr, size); + return (dev->bus == &pci_bus_type) && + ((dma_addr + size - PHYS_OFFSET) >= SZ_64M); +} + +/* + * We override these so we properly do dmabounce otherwise drivers + * are able to set the dma_mask to 0xffffffff and we can no longer + * trap bounces. :( + * + * We just return true on everyhing except for < 64MB in which case + * we will fail miseralby and die since we can't handle that case. + */ +int pci_set_dma_mask(struct pci_dev *dev, u64 mask) +{ + printk(KERN_DEBUG "%s: %s %llx\n", + __FUNCTION__, dev->dev.bus_id, mask); + if (mask >= PHYS_OFFSET + SZ_64M - 1) + return 0; + + return -EIO; +} + +int +pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask) +{ + printk(KERN_DEBUG "%s: %s %llx\n", + __FUNCTION__, dev->dev.bus_id, mask); + if (mask >= PHYS_OFFSET + SZ_64M - 1) + return 0; + + return -EIO; +} + +int __init it8152_pci_setup(int nr, struct pci_sys_data *sys) +{ + it8152_io.start = IT8152_IO_BASE + 0x12000; + it8152_io.end = IT8152_IO_BASE + 0x12000 + 0x100000; + + sys->mem_offset = 0x10000000; + sys->io_offset = IT8152_IO_BASE; + + if (request_resource(&ioport_resource, &it8152_io)) { + printk(KERN_ERR "PCI: unable to allocate IO region\n"); + goto err0; + } + if (request_resource(&iomem_resource, &it8152_mem)) { + printk(KERN_ERR "PCI: unable to allocate memory region\n"); + goto err1; + } + + sys->resource[0] = &it8152_io; + sys->resource[1] = &it8152_mem; + + if (platform_notify || platform_notify_remove) { + printk(KERN_ERR "PCI: Can't use platform_notify\n"); + goto err2; + } + + platform_notify = it8152_pci_platform_notify; + platform_notify_remove = it8152_pci_platform_notify_remove; + + return 1; + +err2: + release_resource(&it8152_io); +err1: + release_resource(&it8152_mem); +err0: + return -EBUSY; +} + +/* + * If we set up a device for bus mastering, we need to check the latency + * timer as we don't have even crappy BIOSes to set it properly. + * The implementation is from arch/i386/pci/i386.c + */ +unsigned int pcibios_max_latency = 255; + +void pcibios_set_master(struct pci_dev *dev) +{ + u8 lat; + + /* no need to update on-chip OHCI controller */ + if ((dev->vendor == PCI_VENDOR_ID_ITE) && + (dev->device == PCI_DEVICE_ID_ITE_8152) && + ((dev->class >> 8) == PCI_CLASS_SERIAL_USB)) + return; + + pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat); + if (lat < 16) + lat = (64 <= pcibios_max_latency) ? 64 : pcibios_max_latency; + else if (lat > pcibios_max_latency) + lat = pcibios_max_latency; + else + return; + printk(KERN_DEBUG "PCI: Setting latency timer of device %s to %d\n", + pci_name(dev), lat); + pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat); +} + + +struct pci_bus * __init it8152_pci_scan_bus(int nr, struct pci_sys_data *sys) +{ + return pci_scan_bus(nr, &it8152_ops, sys); +} + diff --git a/arch/arm/configs/cm_x270_defconfig b/arch/arm/configs/cm_x270_defconfig new file mode 100644 index 00000000000..5cab08397ae --- /dev/null +++ b/arch/arm/configs/cm_x270_defconfig @@ -0,0 +1,1410 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.22 +# Wed Jul 18 14:11:48 2007 +# +CONFIG_ARM=y +CONFIG_SYS_SUPPORTS_APM_EMULATION=y +CONFIG_GENERIC_GPIO=y +CONFIG_GENERIC_TIME=y +# CONFIG_GENERIC_CLOCKEVENTS is not set +CONFIG_MMU=y +# CONFIG_NO_IOPORT is not set +CONFIG_GENERIC_HARDIRQS=y +CONFIG_STACKTRACE_SUPPORT=y +CONFIG_LOCKDEP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y +CONFIG_HARDIRQS_SW_RESEND=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +# CONFIG_ARCH_HAS_ILOG2_U32 is not set +# CONFIG_ARCH_HAS_ILOG2_U64 is not set +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_ZONE_DMA=y +CONFIG_ARCH_MTD_XIP=y +CONFIG_VECTORS_BASE=0xffff0000 +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +# CONFIG_LOCALVERSION_AUTO is not set +CONFIG_SWAP=y +CONFIG_SYSVIPC=y +CONFIG_SYSVIPC_SYSCTL=y +# CONFIG_POSIX_MQUEUE is not set +# CONFIG_BSD_PROCESS_ACCT is not set +# CONFIG_TASKSTATS is not set +# CONFIG_USER_NS is not set +# CONFIG_AUDIT is not set +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +CONFIG_LOG_BUF_SHIFT=17 +CONFIG_SYSFS_DEPRECATED=y +# CONFIG_RELAY is not set +CONFIG_BLK_DEV_INITRD=y +CONFIG_INITRAMFS_SOURCE="" +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_SYSCTL=y +CONFIG_EMBEDDED=y +CONFIG_UID16=y +CONFIG_SYSCTL_SYSCALL=y +CONFIG_KALLSYMS=y +# CONFIG_KALLSYMS_ALL is not set +# CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_HOTPLUG=y +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_ELF_CORE=y +CONFIG_BASE_FULL=y +CONFIG_FUTEX=y +CONFIG_ANON_INODES=y +# CONFIG_EPOLL is not set +# CONFIG_SIGNALFD is not set +# CONFIG_TIMERFD is not set +# CONFIG_EVENTFD is not set +CONFIG_SHMEM=y +CONFIG_VM_EVENT_COUNTERS=y +CONFIG_SLAB=y +# CONFIG_SLUB is not set +# CONFIG_SLOB is not set +CONFIG_RT_MUTEXES=y +# CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=0 +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +CONFIG_MODULE_FORCE_UNLOAD=y +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y +CONFIG_BLOCK=y +# CONFIG_LBD is not set +# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_LSF is not set +# CONFIG_BLK_DEV_BSG is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +CONFIG_IOSCHED_AS=y +CONFIG_IOSCHED_DEADLINE=y +CONFIG_IOSCHED_CFQ=y +CONFIG_DEFAULT_AS=y +# CONFIG_DEFAULT_DEADLINE is not set +# CONFIG_DEFAULT_CFQ is not set +# CONFIG_DEFAULT_NOOP is not set +CONFIG_DEFAULT_IOSCHED="anticipatory" + +# +# System Type +# +# CONFIG_ARCH_AAEC2000 is not set +# CONFIG_ARCH_INTEGRATOR is not set +# CONFIG_ARCH_REALVIEW is not set +# CONFIG_ARCH_VERSATILE is not set +# CONFIG_ARCH_AT91 is not set +# CONFIG_ARCH_CLPS7500 is not set +# CONFIG_ARCH_CLPS711X is not set +# CONFIG_ARCH_CO285 is not set +# CONFIG_ARCH_EBSA110 is not set +# CONFIG_ARCH_EP93XX is not set +# CONFIG_ARCH_FOOTBRIDGE is not set +# CONFIG_ARCH_NETX is not set +# CONFIG_ARCH_H720X is not set +# CONFIG_ARCH_IMX is not set +# CONFIG_ARCH_IOP13XX is not set +# CONFIG_ARCH_IOP32X is not set +# CONFIG_ARCH_IOP33X is not set +# CONFIG_ARCH_IXP23XX is not set +# CONFIG_ARCH_IXP2000 is not set +# CONFIG_ARCH_IXP4XX is not set +# CONFIG_ARCH_L7200 is not set +# CONFIG_ARCH_KS8695 is not set +# CONFIG_ARCH_NS9XXX is not set +# CONFIG_ARCH_PNX4008 is not set +CONFIG_ARCH_PXA=y +# CONFIG_ARCH_RPC is not set +# CONFIG_ARCH_SA1100 is not set +# CONFIG_ARCH_S3C2410 is not set +# CONFIG_ARCH_SHARK is not set +# CONFIG_ARCH_LH7A40X is not set +# CONFIG_ARCH_DAVINCI is not set +# CONFIG_ARCH_OMAP is not set +CONFIG_DMABOUNCE=y + +# +# Intel PXA2xx Implementations +# +# CONFIG_ARCH_LUBBOCK is not set +# CONFIG_MACH_LOGICPD_PXA270 is not set +# CONFIG_MACH_MAINSTONE is not set +# CONFIG_ARCH_PXA_IDP is not set +# CONFIG_PXA_SHARPSL is not set +# CONFIG_MACH_TRIZEPS4 is not set +CONFIG_MACH_ARMCORE=y +CONFIG_PXA27x=y + +# +# Processor Type +# +CONFIG_CPU_32=y +CONFIG_CPU_XSCALE=y +CONFIG_CPU_32v5=y +CONFIG_CPU_ABRT_EV5T=y +CONFIG_CPU_CACHE_VIVT=y +CONFIG_CPU_TLB_V4WBI=y +CONFIG_CPU_CP15=y +CONFIG_CPU_CP15_MMU=y + +# +# Processor Features +# +CONFIG_ARM_THUMB=y +# CONFIG_CPU_DCACHE_DISABLE is not set +# CONFIG_OUTER_CACHE is not set +CONFIG_IWMMXT=y +CONFIG_XSCALE_PMU=y + +# +# Bus support +# +CONFIG_PCI=y +CONFIG_PCI_SYSCALL=y +CONFIG_PCI_HOST_ITE8152=y +# CONFIG_ARCH_SUPPORTS_MSI is not set +# CONFIG_PCI_DEBUG is not set + +# +# PCCARD (PCMCIA/CardBus) support +# +# CONFIG_PCCARD is not set + +# +# Kernel Features +# +# CONFIG_TICK_ONESHOT is not set +# CONFIG_PREEMPT is not set +# CONFIG_NO_IDLE_HZ is not set +CONFIG_HZ=100 +# CONFIG_AEABI is not set +# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not |