diff options
Diffstat (limited to 'arch/powerpc/sysdev')
| -rw-r--r-- | arch/powerpc/sysdev/6xx-suspend.S | 52 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/Makefile | 7 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/dcr.c | 156 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/fsl_msi.c | 429 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/fsl_msi.h | 42 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/fsl_pci.c | 12 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/fsl_soc.c | 15 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/mpic.c | 9 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/mpic_msi.c | 1 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/mpic_pasemi_msi.c | 6 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/mpic_u3msi.c | 8 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/mv64x60_dev.c | 10 |
12 files changed, 703 insertions, 44 deletions
diff --git a/arch/powerpc/sysdev/6xx-suspend.S b/arch/powerpc/sysdev/6xx-suspend.S new file mode 100644 index 0000000..21cda085d --- /dev/null +++ b/arch/powerpc/sysdev/6xx-suspend.S @@ -0,0 +1,52 @@ +/* + * Enter and leave sleep state on chips with 6xx-style HID0 + * power management bits, which don't leave sleep state via reset. + * + * Author: Scott Wood <scottwood@freescale.com> + * + * Copyright (c) 2006-2007 Freescale Semiconductor, Inc. + * + * 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 <asm/ppc_asm.h> +#include <asm/reg.h> +#include <asm/thread_info.h> +#include <asm/asm-offsets.h> + +_GLOBAL(mpc6xx_enter_standby) + mflr r4 + + mfspr r5, SPRN_HID0 + rlwinm r5, r5, 0, ~(HID0_DOZE | HID0_NAP) + oris r5, r5, HID0_SLEEP@h + mtspr SPRN_HID0, r5 + isync + + lis r5, ret_from_standby@h + ori r5, r5, ret_from_standby@l + mtlr r5 + + rlwinm r5, r1, 0, 0, 31-THREAD_SHIFT + lwz r6, TI_LOCAL_FLAGS(r5) + ori r6, r6, _TLF_SLEEPING + stw r6, TI_LOCAL_FLAGS(r5) + + mfmsr r5 + ori r5, r5, MSR_EE + oris r5, r5, MSR_POW@h + sync + mtmsr r5 + isync + +1: b 1b + +ret_from_standby: + mfspr r5, SPRN_HID0 + rlwinm r5, r5, 0, ~HID0_SLEEP + mtspr SPRN_HID0, r5 + + mtlr r4 + blr diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile index 6d386d0..dd6dff3 100644 --- a/arch/powerpc/sysdev/Makefile +++ b/arch/powerpc/sysdev/Makefile @@ -4,6 +4,7 @@ endif mpic-msi-obj-$(CONFIG_PCI_MSI) += mpic_msi.o mpic_u3msi.o mpic_pasemi_msi.o obj-$(CONFIG_MPIC) += mpic.o $(mpic-msi-obj-y) +fsl-msi-obj-$(CONFIG_PCI_MSI) += fsl_msi.o obj-$(CONFIG_PPC_MPC106) += grackle.o obj-$(CONFIG_PPC_DCR_NATIVE) += dcr-low.o @@ -11,7 +12,7 @@ obj-$(CONFIG_PPC_PMI) += pmi.o obj-$(CONFIG_U3_DART) += dart_iommu.o obj-$(CONFIG_MMIO_NVRAM) += mmio_nvram.o obj-$(CONFIG_FSL_SOC) += fsl_soc.o -obj-$(CONFIG_FSL_PCI) += fsl_pci.o +obj-$(CONFIG_FSL_PCI) += fsl_pci.o $(fsl-msi-obj-y) obj-$(CONFIG_FSL_LBC) += fsl_lbc.o obj-$(CONFIG_RAPIDIO) += fsl_rio.o obj-$(CONFIG_TSI108_BRIDGE) += tsi108_pci.o tsi108_dev.o @@ -44,3 +45,7 @@ obj-$(CONFIG_PPC_DCR) += dcr.o obj-$(CONFIG_8xx) += mpc8xx_pic.o cpm1.o obj-$(CONFIG_UCODE_PATCH) += micropatch.o endif + +ifeq ($(CONFIG_SUSPEND),y) +obj-$(CONFIG_6xx) += 6xx-suspend.o +endif diff --git a/arch/powerpc/sysdev/dcr.c b/arch/powerpc/sysdev/dcr.c index 437e48d..a8ba998 100644 --- a/arch/powerpc/sysdev/dcr.c +++ b/arch/powerpc/sysdev/dcr.c @@ -23,6 +23,107 @@ #include <asm/prom.h> #include <asm/dcr.h> +#ifdef CONFIG_PPC_DCR_MMIO +static struct device_node *find_dcr_parent(struct device_node *node) +{ + struct device_node *par, *tmp; + const u32 *p; + + for (par = of_node_get(node); par;) { + if (of_get_property(par, "dcr-controller", NULL)) + break; + p = of_get_property(par, "dcr-parent", NULL); + tmp = par; + if (p == NULL) + par = of_get_parent(par); + else + par = of_find_node_by_phandle(*p); + of_node_put(tmp); + } + return par; +} +#endif + +#if defined(CONFIG_PPC_DCR_NATIVE) && defined(CONFIG_PPC_DCR_MMIO) + +bool dcr_map_ok_generic(dcr_host_t host) +{ + if (host.type == DCR_HOST_NATIVE) + return dcr_map_ok_native(host.host.native); + else if (host.type == DCR_HOST_MMIO) + return dcr_map_ok_mmio(host.host.mmio); + else + return 0; +} +EXPORT_SYMBOL_GPL(dcr_map_ok_generic); + +dcr_host_t dcr_map_generic(struct device_node *dev, + unsigned int dcr_n, + unsigned int dcr_c) +{ + dcr_host_t host; + struct device_node *dp; + const char *prop; + + host.type = DCR_HOST_INVALID; + + dp = find_dcr_parent(dev); + if (dp == NULL) + return host; + + prop = of_get_property(dp, "dcr-access-method", NULL); + + pr_debug("dcr_map_generic(dcr-access-method = %s)\n", prop); + + if (!strcmp(prop, "native")) { + host.type = DCR_HOST_NATIVE; + host.host.native = dcr_map_native(dev, dcr_n, dcr_c); + } else if (!strcmp(prop, "mmio")) { + host.type = DCR_HOST_MMIO; + host.host.mmio = dcr_map_mmio(dev, dcr_n, dcr_c); + } + + of_node_put(dp); + return host; +} +EXPORT_SYMBOL_GPL(dcr_map_generic); + +void dcr_unmap_generic(dcr_host_t host, unsigned int dcr_c) +{ + if (host.type == DCR_HOST_NATIVE) + dcr_unmap_native(host.host.native, dcr_c); + else if (host.type == DCR_HOST_MMIO) + dcr_unmap_mmio(host.host.mmio, dcr_c); + else /* host.type == DCR_HOST_INVALID */ + WARN_ON(true); +} +EXPORT_SYMBOL_GPL(dcr_unmap_generic); + +u32 dcr_read_generic(dcr_host_t host, unsigned int dcr_n) +{ + if (host.type == DCR_HOST_NATIVE) + return dcr_read_native(host.host.native, dcr_n); + else if (host.type == DCR_HOST_MMIO) + return dcr_read_mmio(host.host.mmio, dcr_n); + else /* host.type == DCR_HOST_INVALID */ + WARN_ON(true); + return 0; +} +EXPORT_SYMBOL_GPL(dcr_read_generic); + +void dcr_write_generic(dcr_host_t host, unsigned int dcr_n, u32 value) +{ + if (host.type == DCR_HOST_NATIVE) + dcr_write_native(host.host.native, dcr_n, value); + else if (host.type == DCR_HOST_MMIO) + dcr_write_mmio(host.host.mmio, dcr_n, value); + else /* host.type == DCR_HOST_INVALID */ + WARN_ON(true); +} +EXPORT_SYMBOL_GPL(dcr_write_generic); + +#endif /* defined(CONFIG_PPC_DCR_NATIVE) && defined(CONFIG_PPC_DCR_MMIO) */ + unsigned int dcr_resource_start(struct device_node *np, unsigned int index) { unsigned int ds; @@ -47,26 +148,7 @@ unsigned int dcr_resource_len(struct device_node *np, unsigned int index) } EXPORT_SYMBOL_GPL(dcr_resource_len); -#ifndef CONFIG_PPC_DCR_NATIVE - -static struct device_node * find_dcr_parent(struct device_node * node) -{ - struct device_node *par, *tmp; - const u32 *p; - - for (par = of_node_get(node); par;) { - if (of_get_property(par, "dcr-controller", NULL)) - break; - p = of_get_property(par, "dcr-parent", NULL); - tmp = par; - if (p == NULL) - par = of_get_parent(par); - else - par = of_find_node_by_phandle(*p); - of_node_put(tmp); - } - return par; -} +#ifdef CONFIG_PPC_DCR_MMIO u64 of_translate_dcr_address(struct device_node *dev, unsigned int dcr_n, @@ -75,7 +157,7 @@ u64 of_translate_dcr_address(struct device_node *dev, struct device_node *dp; const u32 *p; unsigned int stride; - u64 ret; + u64 ret = OF_BAD_ADDR; dp = find_dcr_parent(dev); if (dp == NULL) @@ -90,7 +172,7 @@ u64 of_translate_dcr_address(struct device_node *dev, if (p == NULL) p = of_get_property(dp, "dcr-mmio-space", NULL); if (p == NULL) - return OF_BAD_ADDR; + goto done; /* Maybe could do some better range checking here */ ret = of_translate_address(dp, p); @@ -98,21 +180,25 @@ u64 of_translate_dcr_address(struct device_node *dev, ret += (u64)(stride) * (u64)dcr_n; if (out_stride) *out_stride = stride; + + done: + of_node_put(dp); return ret; } -dcr_host_t dcr_map(struct device_node *dev, unsigned int dcr_n, - unsigned int dcr_c) +dcr_host_mmio_t dcr_map_mmio(struct device_node *dev, + unsigned int dcr_n, + unsigned int dcr_c) { - dcr_host_t ret = { .token = NULL, .stride = 0, .base = dcr_n }; + dcr_host_mmio_t ret = { .token = NULL, .stride = 0, .base = dcr_n }; u64 addr; pr_debug("dcr_map(%s, 0x%x, 0x%x)\n", dev->full_name, dcr_n, dcr_c); addr = of_translate_dcr_address(dev, dcr_n, &ret.stride); - pr_debug("translates to addr: 0x%lx, stride: 0x%x\n", - addr, ret.stride); + pr_debug("translates to addr: 0x%llx, stride: 0x%x\n", + (unsigned long long) addr, ret.stride); if (addr == OF_BAD_ADDR) return ret; pr_debug("mapping 0x%x bytes\n", dcr_c * ret.stride); @@ -124,11 +210,11 @@ dcr_host_t dcr_map(struct device_node *dev, unsigned int dcr_n, ret.token -= dcr_n * ret.stride; return ret; } -EXPORT_SYMBOL_GPL(dcr_map); +EXPORT_SYMBOL_GPL(dcr_map_mmio); -void dcr_unmap(dcr_host_t host, unsigned int dcr_c) +void dcr_unmap_mmio(dcr_host_mmio_t host, unsigned int dcr_c) { - dcr_host_t h = host; + dcr_host_mmio_t h = host; if (h.token == NULL) return; @@ -136,7 +222,11 @@ void dcr_unmap(dcr_host_t host, unsigned int dcr_c) iounmap(h.token); h.token = NULL; } -EXPORT_SYMBOL_GPL(dcr_unmap); -#else /* defined(CONFIG_PPC_DCR_NATIVE) */ +EXPORT_SYMBOL_GPL(dcr_unmap_mmio); + +#endif /* defined(CONFIG_PPC_DCR_MMIO) */ + +#ifdef CONFIG_PPC_DCR_NATIVE DEFINE_SPINLOCK(dcr_ind_lock); -#endif /* !defined(CONFIG_PPC_DCR_NATIVE) */ +#endif /* defined(CONFIG_PPC_DCR_NATIVE) */ + diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c new file mode 100644 index 0000000..2c5187c --- /dev/null +++ b/arch/powerpc/sysdev/fsl_msi.c @@ -0,0 +1,429 @@ +/* + * Copyright (C) 2007-2008 Freescale Semiconductor, Inc. All rights reserved. + * + * Author: Tony Li <tony.li@freescale.com> + * Jason Jin <Jason.jin@freescale.com> + * + * The hwirq alloc and free code reuse from sysdev/mpic_msi.c + * + * 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; version 2 of the + * License. + * + */ +#include <linux/irq.h> +#include <linux/bootmem.h> +#include <linux/bitmap.h> +#include <linux/msi.h> +#include <linux/pci.h> +#include <linux/of_platform.h> +#include <sysdev/fsl_soc.h> +#include <asm/prom.h> +#include <asm/hw_irq.h> +#include <asm/ppc-pci.h> +#include "fsl_msi.h" + +struct fsl_msi_feature { + u32 fsl_pic_ip; + u32 msiir_offset; +}; + +static struct fsl_msi *fsl_msi; + +static inline u32 fsl_msi_read(u32 __iomem *base, unsigned int reg) +{ + return in_be32(base + (reg >> 2)); +} + +/* + * We do not need this actually. The MSIR register has been read once + * in the cascade interrupt. So, this MSI interrupt has been acked +*/ +static void fsl_msi_end_irq(unsigned int virq) +{ +} + +static struct irq_chip fsl_msi_chip = { + .mask = mask_msi_irq, + .unmask = unmask_msi_irq, + .ack = fsl_msi_end_irq, + .typename = " FSL-MSI ", +}; + +static int fsl_msi_host_map(struct irq_host *h, unsigned int virq, + irq_hw_number_t hw) +{ + struct irq_chip *chip = &fsl_msi_chip; + + get_irq_desc(virq)->status |= IRQ_TYPE_EDGE_FALLING; + + set_irq_chip_and_handler(virq, chip, handle_edge_irq); + + return 0; +} + +static struct irq_host_ops fsl_msi_host_ops = { + .map = fsl_msi_host_map, +}; + +static irq_hw_number_t fsl_msi_alloc_hwirqs(struct fsl_msi *msi, int num) +{ + unsigned long flags; + int order = get_count_order(num); + int offset; + + spin_lock_irqsave(&msi->bitmap_lock, flags); + + offset = bitmap_find_free_region(msi->fsl_msi_bitmap, + NR_MSI_IRQS, order); + + spin_unlock_irqrestore(&msi->bitmap_lock, flags); + + pr_debug("%s: allocated 0x%x (2^%d) at offset 0x%x\n", + __func__, num, order, offset); + + return offset; +} + +static void fsl_msi_free_hwirqs(struct fsl_msi *msi, int offset, int num) +{ + unsigned long flags; + int order = get_count_order(num); + + pr_debug("%s: freeing 0x%x (2^%d) at offset 0x%x\n", + __func__, num, order, offset); + + spin_lock_irqsave(&msi->bitmap_lock, flags); + bitmap_release_region(msi->fsl_msi_bitmap, offset, order); + spin_unlock_irqrestore(&msi->bitmap_lock, flags); +} + +static int fsl_msi_free_dt_hwirqs(struct fsl_msi *msi) +{ + int i; + int len; + const u32 *p; + + bitmap_allocate_region(msi->fsl_msi_bitmap, 0, + get_count_order(NR_MSI_IRQS)); + + p = of_get_property(msi->of_node, "msi-available-ranges", &len); + + if (!p) { + /* No msi-available-ranges property, + * All the 256 MSI interrupts can be used + */ + fsl_msi_free_hwirqs(msi, 0, 0x100); + return 0; + } + + if ((len % (2 * sizeof(u32))) != 0) { + printk(KERN_WARNING "fsl_msi: Malformed msi-available-ranges " + "property on %s\n", msi->of_node->full_name); + return -EINVAL; + } + + /* Format is: (<u32 start> <u32 count>)+ */ + len /= 2 * sizeof(u32); + for (i = 0; i < len; i++, p += 2) + fsl_msi_free_hwirqs(msi, *p, *(p + 1)); + + return 0; +} + +static int fsl_msi_init_allocator(struct fsl_msi *msi_data) +{ + int rc; + int size = BITS_TO_LONGS(NR_MSI_IRQS) * sizeof(u32); + + msi_data->fsl_msi_bitmap = kzalloc(size, GFP_KERNEL); + + if (msi_data->fsl_msi_bitmap == NULL) { + pr_debug("%s: ENOMEM allocating allocator bitmap!\n", + __func__); + return -ENOMEM; + } + + rc = fsl_msi_free_dt_hwirqs(msi_data); + if (rc) + goto out_free; + + return 0; +out_free: + kfree(msi_data->fsl_msi_bitmap); + + msi_data->fsl_msi_bitmap = NULL; + return rc; + +} + +static int fsl_msi_check_device(struct pci_dev *pdev, int nvec, int type) +{ + if (type == PCI_CAP_ID_MSIX) + pr_debug("fslmsi: MSI-X untested, trying anyway.\n"); + + return 0; +} + +static void fsl_teardown_msi_irqs(struct pci_dev *pdev) +{ + struct msi_desc *entry; + struct fsl_msi *msi_data = fsl_msi; + + list_for_each_entry(entry, &pdev->msi_list, list) { + if (entry->irq == NO_IRQ) + continue; + set_irq_msi(entry->irq, NULL); + fsl_msi_free_hwirqs(msi_data, virq_to_hw(entry->irq), 1); + irq_dispose_mapping(entry->irq); + } + + return; +} + +static void fsl_compose_msi_msg(struct pci_dev *pdev, int hwirq, + struct msi_msg *msg) +{ + struct fsl_msi *msi_data = fsl_msi; + + msg->address_lo = msi_data->msi_addr_lo; + msg->address_hi = msi_data->msi_addr_hi; + msg->data = hwirq; + + pr_debug("%s: allocated srs: %d, ibs: %d\n", + __func__, hwirq / IRQS_PER_MSI_REG, hwirq % IRQS_PER_MSI_REG); +} + +static int fsl_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) +{ + irq_hw_number_t hwirq; + int rc; + unsigned int virq; + struct msi_desc *entry; + struct msi_msg msg; + struct fsl_msi *msi_data = fsl_msi; + + list_for_each_entry(entry, &pdev->msi_list, list) { + hwirq = fsl_msi_alloc_hwirqs(msi_data, 1); + if (hwirq < 0) { + rc = hwirq; + pr_debug("%s: fail allocating msi interrupt\n", + __func__); + goto out_free; + } + + virq = irq_create_mapping(msi_data->irqhost, hwirq); + + if (virq == NO_IRQ) { + pr_debug("%s: fail mapping hwirq 0x%lx\n", + __func__, hwirq); + fsl_msi_free_hwirqs(msi_data, hwirq, 1); + rc = -ENOSPC; + goto out_free; + } + set_irq_msi(virq, entry); + + fsl_compose_msi_msg(pdev, hwirq, &msg); + write_msi_msg(virq, &msg); + } + return 0; + +out_free: + return rc; +} + +static void fsl_msi_cascade(unsigned int irq, struct irq_desc *desc) +{ + unsigned int cascade_irq; + struct fsl_msi *msi_data = fsl_msi; + int msir_index = -1; + u32 msir_value = 0; + u32 intr_index; + u32 have_shift = 0; + + spin_lock(&desc->lock); + if ((msi_data->feature & FSL_PIC_IP_MASK) == FSL_PIC_IP_IPIC) { + if (desc->chip->mask_ack) + desc->chip->mask_ack(irq); + else { + desc->chip->mask(irq); + desc->chip->ack(irq); + } + } + + if (unlikely(desc->status & IRQ_INPROGRESS)) + goto unlock; + + msir_index = (int)desc->handler_data; + + if (msir_index >= NR_MSI_REG) + cascade_irq = NO_IRQ; + + desc->status |= IRQ_INPROGRESS; + switch (fsl_msi->feature & FSL_PIC_IP_MASK) { + case FSL_PIC_IP_MPIC: + msir_value = fsl_msi_read(msi_data->msi_regs, + msir_index * 0x10); + break; + case FSL_PIC_IP_IPIC: + msir_value = fsl_msi_read(msi_data->msi_regs, msir_index * 0x4); + break; + } + + while (msir_value) { + intr_index = ffs(msir_value) - 1; + + cascade_irq = irq_linear_revmap(msi_data->irqhost, + msir_index * IRQS_PER_MSI_REG + + intr_index + have_shift); + if (cascade_irq != NO_IRQ) + generic_handle_irq(cascade_irq); + have_shift += intr_index + 1; + msir_value = msir_value >> (intr_index + 1); + } + desc->status &= ~IRQ_INPROGRESS; + + switch (msi_data->feature & FSL_PIC_IP_MASK) { + case FSL_PIC_IP_MPIC: + desc->chip->eoi(irq); + break; + case FSL_PIC_IP_IPIC: + if (!(desc->status & IRQ_DISABLED) && desc->chip->unmask) + desc->chip->unmask(irq); + break; + } +unlock: + spin_unlock(&desc->lock); +} + +static int __devinit fsl_of_msi_probe(struct of_device *dev, + const struct of_device_id *match) +{ + struct fsl_msi *msi; + struct resource res; + int err, i, count; + int rc; + int virt_msir; + const u32 *p; + struct fsl_msi_feature *features = match->data; + + printk(KERN_DEBUG "Setting up Freescale MSI support\n"); + + msi = kzalloc(sizeof(struct fsl_msi), GFP_KERNEL); + if (!msi) { + dev_err(&dev->dev, "No memory for MSI structure\n"); + err = -ENOMEM; + goto error_out; + } + + msi->of_node = of_node_get(dev->node); + + msi->irqhost = irq_alloc_host(of_node_get(dev->node), + IRQ_HOST_MAP_LINEAR, + NR_MSI_IRQS, &fsl_msi_host_ops, 0); + if (msi->irqhost == NULL) { + dev_err(&dev->dev, "No memory for MSI irqhost\n"); + of_node_put(dev->node); + err = -ENOMEM; + goto error_out; + } + + /* Get the MSI reg base */ + err = of_address_to_resource(dev->node, 0, &res); + if (err) { + dev_err(&dev->dev, "%s resource error!\n", + dev->node->full_name); + goto error_out; + } + + msi->msi_regs = ioremap(res.start, res.end - res.start + 1); + if (!msi->msi_regs) { + dev_err(&dev->dev, "ioremap problem failed\n"); + goto error_out; + } + + msi->feature = features->fsl_pic_ip; + + msi->irqhost->host_data = msi; + + msi->msi_addr_hi = 0x0; + msi->msi_addr_lo = res.start + features->msiir_offset; + + rc = fsl_msi_init_allocator(msi); + if (rc) { + dev_err(&dev->dev, "Error allocating MSI bitmap\n"); + goto error_out; + } + + p = of_get_property(dev->node, "interrupts", &count); + if (!p) { + dev_err(&dev->dev, "no interrupts property found on %s\n", + dev->node->full_name); + err = -ENODEV; + goto error_out; + } + if (count % 8 != 0) { + dev_err(&dev->dev, "Malformed interrupts property on %s\n", + dev->node->full_name); + err = -EINVAL; + goto error_out; + } + + count /= sizeof(u32); + for (i = 0; i < count / 2; i++) { + if (i > NR_MSI_REG) + break; + virt_msir = irq_of_parse_and_map(dev->node, i); + if (virt_msir != NO_IRQ) { + set_irq_data(virt_msir, (void *)i); + set_irq_chained_handler(virt_msir, fsl_msi_cascade); + } + } + + fsl_msi = msi; + + WARN_ON(ppc_md.setup_msi_irqs); + ppc_md.setup_msi_irqs = fsl_setup_msi_irqs; + ppc_md.teardown_msi_irqs = fsl_teardown_msi_irqs; + ppc_md.msi_check_device = fsl_msi_check_device; + return 0; +error_out: + kfree(msi); + return err; +} + +static const struct fsl_msi_feature mpic_msi_feature = { + .fsl_pic_ip = FSL_PIC_IP_MPIC, + .msiir_offset = 0x140, +}; + +static const struct fsl_msi_feature ipic_msi_feature = { + .fsl_pic_ip = FSL_PIC_IP_IPIC, + .msiir_offset = 0x38, +}; + +static const struct of_device_id fsl_of_msi_ids[] = { + { + .compatible = "fsl,mpic-msi", + .data = (void *)&mpic_msi_feature, + }, + { + .compatible = "fsl,ipic-msi", + .data = (void *)&ipic_msi_feature, + }, + {} +}; + +static struct of_platform_driver fsl_of_msi_driver = { + .name = "fsl-msi", + .match_table = fsl_of_msi_ids, + .probe = fsl_of_msi_probe, +}; + +static __init int fsl_of_msi_init(void) +{ + return of_register_platform_driver(&fsl_of_msi_driver); +} + +subsys_initcall(fsl_of_msi_init); diff --git a/arch/powerpc/sysdev/fsl_msi.h b/arch/powerpc/sysdev/fsl_msi.h new file mode 100644 index 0000000..a653468 --- /dev/null +++ b/arch/powerpc/sysdev/fsl_msi.h @@ -0,0 +1,42 @@ +/* + * Copyright (C) 2007-2008 Freescale Semiconductor, Inc. All rights reserved. + * + * Author: Tony Li <tony.li@freescale.com> + * Jason Jin <Jason.jin@freescale.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; version 2 of the + * License. + * + */ +#ifndef _POWERPC_SYSDEV_FSL_MSI_H +#define _POWERPC_SYSDEV_FSL_MSI_H + +#define NR_MSI_REG 8 +#define IRQS_PER_MSI_REG 32 +#define NR_MSI_IRQS (NR_MSI_REG * IRQS_PER_MSI_REG) + +#define FSL_PIC_IP_MASK 0x0000000F +#define FSL_PIC_IP_MPIC 0x00000001 +#define FSL_PIC_IP_IPIC 0x00000002 + +struct fsl_msi { + /* Device node of the MSI interrupt*/ + struct device_node *of_node; + + struct irq_host *irqhost; + + unsigned long cascade_irq; + + u32 msi_addr_lo; + u32 msi_addr_hi; + void __iomem *msi_regs; + u32 feature; + + unsigned long *fsl_msi_bitmap; + spinlock_t bitmap_lock; +}; + +#endif /* _POWERPC_SYSDEV_FSL_MSI_H */ + diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c index bf13c21..489ca5a 100644 --- a/arch/powerpc/sysdev/fsl_pci.c +++ b/arch/powerpc/sysdev/fsl_pci.c @@ -106,6 +106,16 @@ void __init setup_pci_cmd(struct pci_controller *hose) } } +static void __init setup_pci_pcsrbar(struct pci_controller *hose) +{ +#ifdef CONFIG_PCI_MSI + phys_addr_t immr_base; + + immr_base = get_immrbase(); + early_write_config_dword(hose, 0, 0, PCI_BASE_ADDRESS_0, immr_base); +#endif +} + static int fsl_pcie_bus_fixup; static void __init quirk_fsl_pcie_header(struct pci_dev *dev) @@ -211,6 +221,8 @@ int __init fsl_add_bridge(struct device_node *dev, int is_primary) /* Setup PEX window registers */ setup_pci_atmu(hose, &rsrc); + /* Setup PEXCSRBAR */ + setup_pci_pcsrbar(hose); return 0; } diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c index 019657c11..ca54563 100644 --- a/arch/powerpc/sysdev/fsl_soc.c +++ b/arch/powerpc/sysdev/fsl_soc.c @@ -433,6 +433,7 @@ static struct i2c_driver_device i2c_devices[] __initdata = { {"dallas,ds1340", "ds1340"}, {"stm,m41t00", "m41t00"}, {"dallas,ds1374", "ds1374"}, + {"cirrus,cs4270", "cs4270"}, }; static int __init of_find_i2c_driver(struct device_node *node, @@ -448,6 +449,10 @@ static int __init of_find_i2c_driver(struct device_node *node, return -ENOMEM; return 0; } + + pr_warning("fsl_soc.c: unrecognized i2c node %s\n", + (const char *) of_get_property(node, "compatible", NULL)); + return -ENODEV; } @@ -491,6 +496,8 @@ static int __init fsl_i2c_of_init(void) struct resource r[2]; struct fsl_i2c_platform_data i2c_data; const unsigned char *flags = NULL; + int idx; + const u32 *iprop; memset(&r, 0, sizeof(r)); memset(&i2c_data, 0, sizeof(i2c_data)); @@ -501,7 +508,10 @@ static int __init fsl_i2c_of_init(void) of_irq_to_resource(np, 0, &r[1]); - i2c_dev = platform_device_register_simple("fsl-i2c", i, r, 2); + iprop = of_get_property(np, "cell-index", NULL); + idx = iprop ? *iprop : i; + + i2c_dev = platform_device_register_simple("fsl-i2c", idx, r, 2); if (IS_ERR(i2c_dev)) { ret = PTR_ERR(i2c_dev); goto err; @@ -523,7 +533,8 @@ static int __init fsl_i2c_of_init(void) if (ret) goto unreg; - of_register_i2c_devices(np, i++); + of_register_i2c_devices(np, idx); + i++; } return 0; diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index 7680001..f99f81a 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -1144,9 +1144,12 @@ struct mpic * __init mpic_alloc(struct device_node *node, mpic->num_cpus = ((greg_feature & MPIC_GREG_FEATURE_LAST_CPU_MASK) >> MPIC_GREG_FEATURE_LAST_CPU_SHIFT) + 1; if (isu_size == 0) - mpic->num_sources = - ((greg_feature & MPIC_GREG_FEATURE_LAST_SRC_MASK) - >> MPIC_GREG_FEATURE_LAST_SRC_SHIFT) + 1; + if (flags & MPIC_BROKEN_FRR_NIRQS) + mpic->num_sources = mpic->irq_count; + else + mpic->num_sources = + ((greg_feature & MPIC_GREG_FEATURE_LAST_SRC_MASK) + >> MPIC_GREG_FEATURE_LAST_SRC_SHIFT) + 1; /* Map the per-CPU registers */ for (i = 0; i < mpic->num_cpus; i++) { diff --git a/arch/powerpc/sysdev/mpic_msi.c b/arch/powerpc/sysdev/mpic_msi.c index d272a52..de3e5e8 100644 --- a/arch/powerpc/sysdev/mpic_msi.c +++ b/arch/powerpc/sysdev/mpic_msi.c @@ -16,6 +16,7 @@ #include <asm/hw_irq.h> #include <asm/ppc-pci.h> +#include <sysdev/mpic.h> static void __mpic_msi_reserve_hwirq(struct mpic *mpic, irq_hw_number_t hwirq) { diff --git a/arch/powerpc/sysdev/mpic_pasemi_msi.c b/arch/powerpc/sysdev/mpic_pasemi_msi.c index 33cbfb2..68aff60 100644 --- a/arch/powerpc/sysdev/mpic_pasemi_msi.c +++ b/arch/powerpc/sysdev/mpic_pasemi_msi.c @@ -95,6 +95,7 @@ static int pasemi_msi_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) unsigned int virq; struct msi_desc *entry; struct msi_msg msg; + int ret; pr_debug("pasemi_msi_setup_msi_irqs, pdev %p nvec %d type %d\n", pdev, nvec, type); @@ -108,8 +109,9 @@ static int pasemi_msi_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) * few MSIs for someone, but restrictions will apply to how the * sources can be changed independently. */ - hwirq = mpic_msi_alloc_hwirqs(msi_mpic, ALLOC_CHUNK); - if (hwirq < 0) { + ret = mpic_msi_alloc_hwirqs(msi_mpic, ALLOC_CHUNK); + hwirq = ret; + if (ret < 0) { pr_debug("pasemi_msi: failed allocating hwirq\n"); return hwirq; } diff --git a/arch/powerpc/sysdev/mpic_u3msi.c b/arch/powerpc/sysdev/mpic_u3msi.c index 1d5a408..6e2f868 100644 --- a/arch/powerpc/sysdev/mpic_u3msi.c +++ b/arch/powerpc/sysdev/mpic_u3msi.c @@ -115,17 +115,19 @@ static int u3msi_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) struct msi_desc *entry; struct msi_msg msg; u64 addr; + int ret; addr = find_ht_magic_addr(pdev); msg.address_lo = addr & 0xFFFFFFFF; msg.address_hi = addr >> 32; list_for_each_entry(entry, &pdev->msi_list, list) { - hwirq = mpic_msi_alloc_hwirqs(msi_mpic, 1); - if (hwirq < 0) { + ret = mpic_msi_alloc_hwirqs(msi_mpic, 1); + if (ret < 0) { pr_debug("u3msi: failed allocating hwirq\n"); - return hwirq; + return ret; } + hwirq = ret; virq = irq_create_mapping(msi_mpic->irqhost, hwirq); if (virq == NO_IRQ) { diff --git a/arch/powerpc/sysdev/mv64x60_dev.c b/arch/powerpc/sysdev/mv64x60_dev.c index a132e0d..32e0ad0 100644 --- a/arch/powerpc/sysdev/mv64x60_dev.c +++ b/arch/powerpc/sysdev/mv64x60_dev.c @@ -15,6 +15,7 @@ #include <linux/console.h> #include <linux/mv643xx.h> #include <linux/platform_device.h> +#include <linux/of_platform.h> #include <asm/prom.h> @@ -25,6 +26,11 @@ * PowerPC of_platform_bus_type. They support platform_bus_type instead. */ +static struct of_device_id __initdata of_mv64x60_devices[] = { + { .compatible = "marvell,mv64306-devctrl", }, + {} +}; + /* * Create MPSC platform devices */ @@ -484,6 +490,10 @@ static int __init mv64x60_device_setup(void) of_node_put(np); } + /* Now add every node that is on the device bus */ + for_each_compatible_node(np, NULL, "marvell,mv64360") + of_platform_bus_probe(np, of_mv64x60_devices, NULL); + return 0; } arch_initcall(mv64x60_device_setup); |
