[PATCH 01/12][v3] pci: fsl: derive the common PCI driver to drivers/pci/host
Bjorn Helgaas
bhelgaas at google.com
Tue Nov 26 10:01:16 EST 2013
On Wed, Oct 23, 2013 at 06:41:23PM +0800, Minghuan Lian wrote:
> The Freescale's Layerscape series processors will use ARM cores.
> The LS1's PCIe controllers is the same as T4240's. So it's better
> the PCIe controller driver can support PowerPC and ARM
> simultaneously. This patch is for this purpose. It derives
> the common functions from arch/powerpc/sysdev/fsl_pci.c to
> drivers/pci/host/pci-fsl-common.c and leaves the architecture
> specific functions which should be implemented in arch related files.
>
> Signed-off-by: Minghuan Lian <Minghuan.Lian at freescale.com>
It doesn't look like we have a consensus on how to proceed here, so I'm
ignoring this series for now. Let me know if there really *is* agreement,
or if there's some subset of this work that everybody can agree on. It'd
be good to make forward progress, even if it's not completely perfect yet.
Bjorn
> ---
> change log:
> v2-v3:
> no change
> v1-v2:
> 1. rename pci.h to pci-common.h
> 2. rename pci-fsl.c to pci-fsl-common.c
>
> Based on upstream master.
> Based on the discussion of RFC version here
> http://patchwork.ozlabs.org/patch/274487/
>
> arch/powerpc/sysdev/fsl_pci.c | 521 +-----------------
> arch/powerpc/sysdev/fsl_pci.h | 89 ----
> .../fsl_pci.c => drivers/pci/host/pci-fsl-common.c | 591 +--------------------
> .../fsl_pci.h => include/linux/fsl/pci-common.h | 45 +-
> 4 files changed, 7 insertions(+), 1239 deletions(-)
> copy arch/powerpc/sysdev/fsl_pci.c => drivers/pci/host/pci-fsl-common.c (54%)
> copy arch/powerpc/sysdev/fsl_pci.h => include/linux/fsl/pci-common.h (79%)
>
> diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
> index ccfb50d..26039e3 100644
> --- a/arch/powerpc/sysdev/fsl_pci.c
> +++ b/arch/powerpc/sysdev/fsl_pci.c
> @@ -27,6 +27,7 @@
> #include <linux/log2.h>
> #include <linux/slab.h>
> #include <linux/uaccess.h>
> +#include <linux/fsl/pci-common.h>
>
> #include <asm/io.h>
> #include <asm/prom.h>
> @@ -58,57 +59,8 @@ static void quirk_fsl_pcie_header(struct pci_dev *dev)
> return;
> }
>
> -static int fsl_indirect_read_config(struct pci_bus *, unsigned int,
> - int, int, u32 *);
> -
> -static int fsl_pcie_check_link(struct pci_controller *hose)
> -{
> - u32 val = 0;
> -
> - if (hose->indirect_type & PPC_INDIRECT_TYPE_FSL_CFG_REG_LINK) {
> - if (hose->ops->read == fsl_indirect_read_config) {
> - struct pci_bus bus;
> - bus.number = hose->first_busno;
> - bus.sysdata = hose;
> - bus.ops = hose->ops;
> - indirect_read_config(&bus, 0, PCIE_LTSSM, 4, &val);
> - } else
> - early_read_config_dword(hose, 0, 0, PCIE_LTSSM, &val);
> - if (val < PCIE_LTSSM_L0)
> - return 1;
> - } else {
> - struct ccsr_pci __iomem *pci = hose->private_data;
> - /* for PCIe IP rev 3.0 or greater use CSR0 for link state */
> - val = (in_be32(&pci->pex_csr0) & PEX_CSR0_LTSSM_MASK)
> - >> PEX_CSR0_LTSSM_SHIFT;
> - if (val != PEX_CSR0_LTSSM_L0)
> - return 1;
> - }
> -
> - return 0;
> -}
> -
> -static int fsl_indirect_read_config(struct pci_bus *bus, unsigned int devfn,
> - int offset, int len, u32 *val)
> -{
> - struct pci_controller *hose = pci_bus_to_host(bus);
> -
> - if (fsl_pcie_check_link(hose))
> - hose->indirect_type |= PPC_INDIRECT_TYPE_NO_PCIE_LINK;
> - else
> - hose->indirect_type &= ~PPC_INDIRECT_TYPE_NO_PCIE_LINK;
> -
> - return indirect_read_config(bus, devfn, offset, len, val);
> -}
> -
> #if defined(CONFIG_FSL_SOC_BOOKE) || defined(CONFIG_PPC_86xx)
>
> -static struct pci_ops fsl_indirect_pcie_ops =
> -{
> - .read = fsl_indirect_read_config,
> - .write = indirect_write_config,
> -};
> -
> #define MAX_PHYS_ADDR_BITS 40
> static u64 pci64_dma_offset = 1ull << MAX_PHYS_ADDR_BITS;
>
> @@ -132,291 +84,6 @@ static int fsl_pci_dma_set_mask(struct device *dev, u64 dma_mask)
> return 0;
> }
>
> -static int setup_one_atmu(struct ccsr_pci __iomem *pci,
> - unsigned int index, const struct resource *res,
> - resource_size_t offset)
> -{
> - resource_size_t pci_addr = res->start - offset;
> - resource_size_t phys_addr = res->start;
> - resource_size_t size = resource_size(res);
> - u32 flags = 0x80044000; /* enable & mem R/W */
> - unsigned int i;
> -
> - pr_debug("PCI MEM resource start 0x%016llx, size 0x%016llx.\n",
> - (u64)res->start, (u64)size);
> -
> - if (res->flags & IORESOURCE_PREFETCH)
> - flags |= 0x10000000; /* enable relaxed ordering */
> -
> - for (i = 0; size > 0; i++) {
> - unsigned int bits = min(ilog2(size),
> - __ffs(pci_addr | phys_addr));
> -
> - if (index + i >= 5)
> - return -1;
> -
> - out_be32(&pci->pow[index + i].potar, pci_addr >> 12);
> - out_be32(&pci->pow[index + i].potear, (u64)pci_addr >> 44);
> - out_be32(&pci->pow[index + i].powbar, phys_addr >> 12);
> - out_be32(&pci->pow[index + i].powar, flags | (bits - 1));
> -
> - pci_addr += (resource_size_t)1U << bits;
> - phys_addr += (resource_size_t)1U << bits;
> - size -= (resource_size_t)1U << bits;
> - }
> -
> - return i;
> -}
> -
> -/* atmu setup for fsl pci/pcie controller */
> -static void setup_pci_atmu(struct pci_controller *hose)
> -{
> - struct ccsr_pci __iomem *pci = hose->private_data;
> - int i, j, n, mem_log, win_idx = 3, start_idx = 1, end_idx = 4;
> - u64 mem, sz, paddr_hi = 0;
> - u64 offset = 0, paddr_lo = ULLONG_MAX;
> - u32 pcicsrbar = 0, pcicsrbar_sz;
> - u32 piwar = PIWAR_EN | PIWAR_PF | PIWAR_TGI_LOCAL |
> - PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP;
> - const char *name = hose->dn->full_name;
> - const u64 *reg;
> - int len;
> -
> - if (early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) {
> - if (in_be32(&pci->block_rev1) >= PCIE_IP_REV_2_2) {
> - win_idx = 2;
> - start_idx = 0;
> - end_idx = 3;
> - }
> - }
> -
> - /* Disable all windows (except powar0 since it's ignored) */
> - for(i = 1; i < 5; i++)
> - out_be32(&pci->pow[i].powar, 0);
> - for (i = start_idx; i < end_idx; i++)
> - out_be32(&pci->piw[i].piwar, 0);
> -
> - /* Setup outbound MEM window */
> - for(i = 0, j = 1; i < 3; i++) {
> - if (!(hose->mem_resources[i].flags & IORESOURCE_MEM))
> - continue;
> -
> - paddr_lo = min(paddr_lo, (u64)hose->mem_resources[i].start);
> - paddr_hi = max(paddr_hi, (u64)hose->mem_resources[i].end);
> -
> - /* We assume all memory resources have the same offset */
> - offset = hose->mem_offset[i];
> - n = setup_one_atmu(pci, j, &hose->mem_resources[i], offset);
> -
> - if (n < 0 || j >= 5) {
> - pr_err("Ran out of outbound PCI ATMUs for resource %d!\n", i);
> - hose->mem_resources[i].flags |= IORESOURCE_DISABLED;
> - } else
> - j += n;
> - }
> -
> - /* Setup outbound IO window */
> - if (hose->io_resource.flags & IORESOURCE_IO) {
> - if (j >= 5) {
> - pr_err("Ran out of outbound PCI ATMUs for IO resource\n");
> - } else {
> - pr_debug("PCI IO resource start 0x%016llx, size 0x%016llx, "
> - "phy base 0x%016llx.\n",
> - (u64)hose->io_resource.start,
> - (u64)resource_size(&hose->io_resource),
> - (u64)hose->io_base_phys);
> - out_be32(&pci->pow[j].potar, (hose->io_resource.start >> 12));
> - out_be32(&pci->pow[j].potear, 0);
> - out_be32(&pci->pow[j].powbar, (hose->io_base_phys >> 12));
> - /* Enable, IO R/W */
> - out_be32(&pci->pow[j].powar, 0x80088000
> - | (ilog2(hose->io_resource.end
> - - hose->io_resource.start + 1) - 1));
> - }
> - }
> -
> - /* convert to pci address space */
> - paddr_hi -= offset;
> - paddr_lo -= offset;
> -
> - if (paddr_hi == paddr_lo) {
> - pr_err("%s: No outbound window space\n", name);
> - return;
> - }
> -
> - if (paddr_lo == 0) {
> - pr_err("%s: No space for inbound window\n", name);
> - return;
> - }
> -
> - /* setup PCSRBAR/PEXCSRBAR */
> - early_write_config_dword(hose, 0, 0, PCI_BASE_ADDRESS_0, 0xffffffff);
> - early_read_config_dword(hose, 0, 0, PCI_BASE_ADDRESS_0, &pcicsrbar_sz);
> - pcicsrbar_sz = ~pcicsrbar_sz + 1;
> -
> - if (paddr_hi < (0x100000000ull - pcicsrbar_sz) ||
> - (paddr_lo > 0x100000000ull))
> - pcicsrbar = 0x100000000ull - pcicsrbar_sz;
> - else
> - pcicsrbar = (paddr_lo - pcicsrbar_sz) & -pcicsrbar_sz;
> - early_write_config_dword(hose, 0, 0, PCI_BASE_ADDRESS_0, pcicsrbar);
> -
> - paddr_lo = min(paddr_lo, (u64)pcicsrbar);
> -
> - pr_info("%s: PCICSRBAR @ 0x%x\n", name, pcicsrbar);
> -
> - /* Setup inbound mem window */
> - mem = memblock_end_of_DRAM();
> -
> - /*
> - * The msi-address-64 property, if it exists, indicates the physical
> - * address of the MSIIR register. Normally, this register is located
> - * inside CCSR, so the ATMU that covers all of CCSR is used. But if
> - * this property exists, then we normally need to create a new ATMU
> - * for it. For now, however, we cheat. The only entity that creates
> - * this property is the Freescale hypervisor, and the address is
> - * specified in the partition configuration. Typically, the address
> - * is located in the page immediately after the end of DDR. If so, we
> - * can avoid allocating a new ATMU by extending the DDR ATMU by one
> - * page.
> - */
> - reg = of_get_property(hose->dn, "msi-address-64", &len);
> - if (reg && (len == sizeof(u64))) {
> - u64 address = be64_to_cpup(reg);
> -
> - if ((address >= mem) && (address < (mem + PAGE_SIZE))) {
> - pr_info("%s: extending DDR ATMU to cover MSIIR", name);
> - mem += PAGE_SIZE;
> - } else {
> - /* TODO: Create a new ATMU for MSIIR */
> - pr_warn("%s: msi-address-64 address of %llx is "
> - "unsupported\n", name, address);
> - }
> - }
> -
> - sz = min(mem, paddr_lo);
> - mem_log = ilog2(sz);
> -
> - /* PCIe can overmap inbound & outbound since RX & TX are separated */
> - if (early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) {
> - /* Size window to exact size if power-of-two or one size up */
> - if ((1ull << mem_log) != mem) {
> - mem_log++;
> - if ((1ull << mem_log) > mem)
> - pr_info("%s: Setting PCI inbound window "
> - "greater than memory size\n", name);
> - }
> -
> - piwar |= ((mem_log - 1) & PIWAR_SZ_MASK);
> -
> - /* Setup inbound memory window */
> - out_be32(&pci->piw[win_idx].pitar, 0x00000000);
> - out_be32(&pci->piw[win_idx].piwbar, 0x00000000);
> - out_be32(&pci->piw[win_idx].piwar, piwar);
> - win_idx--;
> -
> - hose->dma_window_base_cur = 0x00000000;
> - hose->dma_window_size = (resource_size_t)sz;
> -
> - /*
> - * if we have >4G of memory setup second PCI inbound window to
> - * let devices that are 64-bit address capable to work w/o
> - * SWIOTLB and access the full range of memory
> - */
> - if (sz != mem) {
> - mem_log = ilog2(mem);
> -
> - /* Size window up if we dont fit in exact power-of-2 */
> - if ((1ull << mem_log) != mem)
> - mem_log++;
> -
> - piwar = (piwar & ~PIWAR_SZ_MASK) | (mem_log - 1);
> -
> - /* Setup inbound memory window */
> - out_be32(&pci->piw[win_idx].pitar, 0x00000000);
> - out_be32(&pci->piw[win_idx].piwbear,
> - pci64_dma_offset >> 44);
> - out_be32(&pci->piw[win_idx].piwbar,
> - pci64_dma_offset >> 12);
> - out_be32(&pci->piw[win_idx].piwar, piwar);
> -
> - /*
> - * install our own dma_set_mask handler to fixup dma_ops
> - * and dma_offset
> - */
> - ppc_md.dma_set_mask = fsl_pci_dma_set_mask;
> -
> - pr_info("%s: Setup 64-bit PCI DMA window\n", name);
> - }
> - } else {
> - u64 paddr = 0;
> -
> - /* Setup inbound memory window */
> - out_be32(&pci->piw[win_idx].pitar, paddr >> 12);
> - out_be32(&pci->piw[win_idx].piwbar, paddr >> 12);
> - out_be32(&pci->piw[win_idx].piwar, (piwar | (mem_log - 1)));
> - win_idx--;
> -
> - paddr += 1ull << mem_log;
> - sz -= 1ull << mem_log;
> -
> - if (sz) {
> - mem_log = ilog2(sz);
> - piwar |= (mem_log - 1);
> -
> - out_be32(&pci->piw[win_idx].pitar, paddr >> 12);
> - out_be32(&pci->piw[win_idx].piwbar, paddr >> 12);
> - out_be32(&pci->piw[win_idx].piwar, piwar);
> - win_idx--;
> -
> - paddr += 1ull << mem_log;
> - }
> -
> - hose->dma_window_base_cur = 0x00000000;
> - hose->dma_window_size = (resource_size_t)paddr;
> - }
> -
> - if (hose->dma_window_size < mem) {
> -#ifdef CONFIG_SWIOTLB
> - ppc_swiotlb_enable = 1;
> -#else
> - pr_err("%s: ERROR: Memory size exceeds PCI ATMU ability to "
> - "map - enable CONFIG_SWIOTLB to avoid dma errors.\n",
> - name);
> -#endif
> - /* adjusting outbound windows could reclaim space in mem map */
> - if (paddr_hi < 0xffffffffull)
> - pr_warning("%s: WARNING: Outbound window cfg leaves "
> - "gaps in memory map. Adjusting the memory map "
> - "could reduce unnecessary bounce buffering.\n",
> - name);
> -
> - pr_info("%s: DMA window size is 0x%llx\n", name,
> - (u64)hose->dma_window_size);
> - }
> -}
> -
> -static void __init setup_pci_cmd(struct pci_controller *hose)
> -{
> - u16 cmd;
> - int cap_x;
> -
> - early_read_config_word(hose, 0, 0, PCI_COMMAND, &cmd);
> - cmd |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY
> - | PCI_COMMAND_IO;
> - early_write_config_word(hose, 0, 0, PCI_COMMAND, cmd);
> -
> - cap_x = early_find_capability(hose, 0, 0, PCI_CAP_ID_PCIX);
> - if (cap_x) {
> - int pci_x_cmd = cap_x + PCI_X_CMD;
> - cmd = PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ
> - | PCI_X_CMD_ERO | PCI_X_CMD_DPERR_E;
> - early_write_config_word(hose, 0, 0, pci_x_cmd, cmd);
> - } else {
> - early_write_config_byte(hose, 0, 0, PCI_LATENCY_TIMER, 0x80);
> - }
> -}
> -
> void fsl_pcibios_fixup_bus(struct pci_bus *bus)
> {
> struct pci_controller *hose = pci_bus_to_host(bus);
> @@ -454,112 +121,6 @@ void fsl_pcibios_fixup_bus(struct pci_bus *bus)
> }
> }
>
> -int __init fsl_add_bridge(struct platform_device *pdev, int is_primary)
> -{
> - int len;
> - struct pci_controller *hose;
> - struct resource rsrc;
> - const int *bus_range;
> - u8 hdr_type, progif;
> - struct device_node *dev;
> - struct ccsr_pci __iomem *pci;
> -
> - dev = pdev->dev.of_node;
> -
> - if (!of_device_is_available(dev)) {
> - pr_warning("%s: disabled\n", dev->full_name);
> - return -ENODEV;
> - }
> -
> - pr_debug("Adding PCI host bridge %s\n", dev->full_name);
> -
> - /* Fetch host bridge registers address */
> - if (of_address_to_resource(dev, 0, &rsrc)) {
> - printk(KERN_WARNING "Can't get pci register base!");
> - return -ENOMEM;
> - }
> -
> - /* Get bus range if any */
> - bus_range = of_get_property(dev, "bus-range", &len);
> - if (bus_range == NULL || len < 2 * sizeof(int))
> - printk(KERN_WARNING "Can't get bus-range for %s, assume"
> - " bus 0\n", dev->full_name);
> -
> - pci_add_flags(PCI_REASSIGN_ALL_BUS);
> - hose = pcibios_alloc_controller(dev);
> - if (!hose)
> - return -ENOMEM;
> -
> - /* set platform device as the parent */
> - hose->parent = &pdev->dev;
> - hose->first_busno = bus_range ? bus_range[0] : 0x0;
> - hose->last_busno = bus_range ? bus_range[1] : 0xff;
> -
> - pr_debug("PCI memory map start 0x%016llx, size 0x%016llx\n",
> - (u64)rsrc.start, (u64)resource_size(&rsrc));
> -
> - pci = hose->private_data = ioremap(rsrc.start, resource_size(&rsrc));
> - if (!hose->private_data)
> - goto no_bridge;
> -
> - setup_indirect_pci(hose, rsrc.start, rsrc.start + 0x4,
> - PPC_INDIRECT_TYPE_BIG_ENDIAN);
> -
> - if (in_be32(&pci->block_rev1) < PCIE_IP_REV_3_0)
> - hose->indirect_type |= PPC_INDIRECT_TYPE_FSL_CFG_REG_LINK;
> -
> - if (early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) {
> - /* use fsl_indirect_read_config for PCIe */
> - hose->ops = &fsl_indirect_pcie_ops;
> - /* For PCIE read HEADER_TYPE to identify controler mode */
> - early_read_config_byte(hose, 0, 0, PCI_HEADER_TYPE, &hdr_type);
> - if ((hdr_type & 0x7f) != PCI_HEADER_TYPE_BRIDGE)
> - goto no_bridge;
> -
> - } else {
> - /* For PCI read PROG to identify controller mode */
> - early_read_config_byte(hose, 0, 0, PCI_CLASS_PROG, &progif);
> - if ((progif & 1) == 1)
> - goto no_bridge;
> - }
> -
> - setup_pci_cmd(hose);
> -
> - /* check PCI express link status */
> - if (early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) {
> - hose->indirect_type |= PPC_INDIRECT_TYPE_EXT_REG |
> - PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS;
> - if (fsl_pcie_check_link(hose))
> - hose->indirect_type |= PPC_INDIRECT_TYPE_NO_PCIE_LINK;
> - }
> -
> - printk(KERN_INFO "Found FSL PCI host bridge at 0x%016llx. "
> - "Firmware bus number: %d->%d\n",
> - (unsigned long long)rsrc.start, hose->first_busno,
> - hose->last_busno);
> -
> - pr_debug(" ->Hose at 0x%p, cfg_addr=0x%p,cfg_data=0x%p\n",
> - hose, hose->cfg_addr, hose->cfg_data);
> -
> - /* Interpret the "ranges" property */
> - /* This also maps the I/O region and sets isa_io/mem_base */
> - pci_process_bridge_OF_ranges(hose, dev, is_primary);
> -
> - /* Setup PEX window registers */
> - setup_pci_atmu(hose);
> -
> - return 0;
> -
> -no_bridge:
> - iounmap(hose->private_data);
> - /* unmap cfg_data & cfg_addr separately if not on same page */
> - if (((unsigned long)hose->cfg_data & PAGE_MASK) !=
> - ((unsigned long)hose->cfg_addr & PAGE_MASK))
> - iounmap(hose->cfg_data);
> - iounmap(hose->cfg_addr);
> - pcibios_free_controller(hose);
> - return -ENODEV;
> -}
> #endif /* CONFIG_FSL_SOC_BOOKE || CONFIG_PPC_86xx */
>
> DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_FREESCALE, PCI_ANY_ID, quirk_fsl_pcie_header);
> @@ -1029,26 +590,6 @@ int fsl_pci_mcheck_exception(struct pt_regs *regs)
> #endif
>
> #if defined(CONFIG_FSL_SOC_BOOKE) || defined(CONFIG_PPC_86xx)
> -static const struct of_device_id pci_ids[] = {
> - { .compatible = "fsl,mpc8540-pci", },
> - { .compatible = "fsl,mpc8548-pcie", },
> - { .compatible = "fsl,mpc8610-pci", },
> - { .compatible = "fsl,mpc8641-pcie", },
> - { .compatible = "fsl,qoriq-pcie-v2.1", },
> - { .compatible = "fsl,qoriq-pcie-v2.2", },
> - { .compatible = "fsl,qoriq-pcie-v2.3", },
> - { .compatible = "fsl,qoriq-pcie-v2.4", },
> - { .compatible = "fsl,qoriq-pcie-v3.0", },
> -
> - /*
> - * The following entries are for compatibility with older device
> - * trees.
> - */
> - { .compatible = "fsl,p1022-pcie", },
> - { .compatible = "fsl,p4080-pcie", },
> -
> - {},
> -};
>
> struct device_node *fsl_pci_primary;
>
> @@ -1083,64 +624,4 @@ void fsl_pci_assign_primary(void)
> }
> }
> }
> -
> -static int fsl_pci_probe(struct platform_device *pdev)
> -{
> - int ret;
> - struct device_node *node;
> -
> - node = pdev->dev.of_node;
> - ret = fsl_add_bridge(pdev, fsl_pci_primary == node);
> -
> - mpc85xx_pci_err_probe(pdev);
> -
> - return 0;
> -}
> -
> -#ifdef CONFIG_PM
> -static int fsl_pci_resume(struct device *dev)
> -{
> - struct pci_controller *hose;
> - struct resource pci_rsrc;
> -
> - hose = pci_find_hose_for_OF_device(dev->of_node);
> - if (!hose)
> - return -ENODEV;
> -
> - if (of_address_to_resource(dev->of_node, 0, &pci_rsrc)) {
> - dev_err(dev, "Get pci register base failed.");
> - return -ENODEV;
> - }
> -
> - setup_pci_atmu(hose);
> -
> - return 0;
> -}
> -
> -static const struct dev_pm_ops pci_pm_ops = {
> - .resume = fsl_pci_resume,
> -};
> -
> -#define PCI_PM_OPS (&pci_pm_ops)
> -
> -#else
> -
> -#define PCI_PM_OPS NULL
> -
> -#endif
> -
> -static struct platform_driver fsl_pci_driver = {
> - .driver = {
> - .name = "fsl-pci",
> - .pm = PCI_PM_OPS,
> - .of_match_table = pci_ids,
> - },
> - .probe = fsl_pci_probe,
> -};
> -
> -static int __init fsl_pci_init(void)
> -{
> - return platform_driver_register(&fsl_pci_driver);
> -}
> -arch_initcall(fsl_pci_init);
> #endif
> diff --git a/arch/powerpc/sysdev/fsl_pci.h b/arch/powerpc/sysdev/fsl_pci.h
> index 8d455df..ce77aad 100644
> --- a/arch/powerpc/sysdev/fsl_pci.h
> +++ b/arch/powerpc/sysdev/fsl_pci.h
> @@ -21,95 +21,6 @@ struct platform_device;
> #define PCI_FSL_BRR1 0xbf8
> #define PCI_FSL_BRR1_VER 0xffff
>
> -#define PCIE_LTSSM 0x0404 /* PCIE Link Training and Status */
> -#define PCIE_LTSSM_L0 0x16 /* L0 state */
> -#define PCIE_IP_REV_2_2 0x02080202 /* PCIE IP block version Rev2.2 */
> -#define PCIE_IP_REV_3_0 0x02080300 /* PCIE IP block version Rev3.0 */
> -#define PIWAR_EN 0x80000000 /* Enable */
> -#define PIWAR_PF 0x20000000 /* prefetch */
> -#define PIWAR_TGI_LOCAL 0x00f00000 /* target - local memory */
> -#define PIWAR_READ_SNOOP 0x00050000
> -#define PIWAR_WRITE_SNOOP 0x00005000
> -#define PIWAR_SZ_MASK 0x0000003f
> -
> -/* PCI/PCI Express outbound window reg */
> -struct pci_outbound_window_regs {
> - __be32 potar; /* 0x.0 - Outbound translation address register */
> - __be32 potear; /* 0x.4 - Outbound translation extended address register */
> - __be32 powbar; /* 0x.8 - Outbound window base address register */
> - u8 res1[4];
> - __be32 powar; /* 0x.10 - Outbound window attributes register */
> - u8 res2[12];
> -};
> -
> -/* PCI/PCI Express inbound window reg */
> -struct pci_inbound_window_regs {
> - __be32 pitar; /* 0x.0 - Inbound translation address register */
> - u8 res1[4];
> - __be32 piwbar; /* 0x.8 - Inbound window base address register */
> - __be32 piwbear; /* 0x.c - Inbound window base extended address register */
> - __be32 piwar; /* 0x.10 - Inbound window attributes register */
> - u8 res2[12];
> -};
> -
> -/* PCI/PCI Express IO block registers for 85xx/86xx */
> -struct ccsr_pci {
> - __be32 config_addr; /* 0x.000 - PCI/PCIE Configuration Address Register */
> - __be32 config_data; /* 0x.004 - PCI/PCIE Configuration Data Register */
> - __be32 int_ack; /* 0x.008 - PCI Interrupt Acknowledge Register */
> - __be32 pex_otb_cpl_tor; /* 0x.00c - PCIE Outbound completion timeout register */
> - __be32 pex_conf_tor; /* 0x.010 - PCIE configuration timeout register */
> - __be32 pex_config; /* 0x.014 - PCIE CONFIG Register */
> - __be32 pex_int_status; /* 0x.018 - PCIE interrupt status */
> - u8 res2[4];
> - __be32 pex_pme_mes_dr; /* 0x.020 - PCIE PME and message detect register */
> - __be32 pex_pme_mes_disr; /* 0x.024 - PCIE PME and message disable register */
> - __be32 pex_pme_mes_ier; /* 0x.028 - PCIE PME and message interrupt enable register */
> - __be32 pex_pmcr; /* 0x.02c - PCIE power management command register */
> - u8 res3[3016];
> - __be32 block_rev1; /* 0x.bf8 - PCIE Block Revision register 1 */
> - __be32 block_rev2; /* 0x.bfc - PCIE Block Revision register 2 */
> -
> -/* PCI/PCI Express outbound window 0-4
> - * Window 0 is the default window and is the only window enabled upon reset.
> - * The default outbound register set is used when a transaction misses
> - * in all of the other outbound windows.
> - */
> - struct pci_outbound_window_regs pow[5];
> - u8 res14[96];
> - struct pci_inbound_window_regs pmit; /* 0xd00 - 0xd9c Inbound MSI */
> - u8 res6[96];
> -/* PCI/PCI Express inbound window 3-0
> - * inbound window 1 supports only a 32-bit base address and does not
> - * define an inbound window base extended address register.
> - */
> - struct pci_inbound_window_regs piw[4];
> -
> - __be32 pex_err_dr; /* 0x.e00 - PCI/PCIE error detect register */
> - u8 res21[4];
> - __be32 pex_err_en; /* 0x.e08 - PCI/PCIE error interrupt enable register */
> - u8 res22[4];
> - __be32 pex_err_disr; /* 0x.e10 - PCI/PCIE error disable register */
> - u8 res23[12];
> - __be32 pex_err_cap_stat; /* 0x.e20 - PCI/PCIE error capture status register */
> - u8 res24[4];
> - __be32 pex_err_cap_r0; /* 0x.e28 - PCIE error capture register 0 */
> - __be32 pex_err_cap_r1; /* 0x.e2c - PCIE error capture register 0 */
> - __be32 pex_err_cap_r2; /* 0x.e30 - PCIE error capture register 0 */
> - __be32 pex_err_cap_r3; /* 0x.e34 - PCIE error capture register 0 */
> - u8 res_e38[200];
> - __be32 pdb_stat; /* 0x.f00 - PCIE Debug Status */
> - u8 res_f04[16];
> - __be32 pex_csr0; /* 0x.f14 - PEX Control/Status register 0*/
> -#define PEX_CSR0_LTSSM_MASK 0xFC
> -#define PEX_CSR0_LTSSM_SHIFT 2
> -#define PEX_CSR0_LTSSM_L0 0x11
> - __be32 pex_csr1; /* 0x.f18 - PEX Control/Status register 1*/
> - u8 res_f1c[228];
> -
> -};
> -
> -extern int fsl_add_bridge(struct platform_device *pdev, int is_primary);
> extern void fsl_pcibios_fixup_bus(struct pci_bus *bus);
> extern int mpc83xx_add_bridge(struct device_node *dev);
> u64 fsl_pci_immrbar_base(struct pci_controller *hose);
> diff --git a/arch/powerpc/sysdev/fsl_pci.c b/drivers/pci/host/pci-fsl-common.c
> similarity index 54%
> copy from arch/powerpc/sysdev/fsl_pci.c
> copy to drivers/pci/host/pci-fsl-common.c
> index ccfb50d..69d338b 100644
> --- a/arch/powerpc/sysdev/fsl_pci.c
> +++ b/drivers/pci/host/pci-fsl-common.c
> @@ -1,5 +1,5 @@
> /*
> - * MPC83xx/85xx/86xx PCI/PCIE support routing.
> + * 85xx/86xx/LS PCI/PCIE support routing.
> *
> * Copyright 2007-2012 Freescale Semiconductor, Inc.
> * Copyright 2008-2009 MontaVista Software, Inc.
> @@ -8,9 +8,6 @@
> * Recode: ZHANG WEI <wei.zhang at freescale.com>
> * Rewrite the routing for Frescale PCI and PCI Express
> * Roy Zang <tie-fei.zang at freescale.com>
> - * MPC83xx PCI-Express support:
> - * Tony Li <tony.li at freescale.com>
> - * Anton Vorontsov <avorontsov at ru.mvista.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
> @@ -38,29 +35,6 @@
> #include <sysdev/fsl_soc.h>
> #include <sysdev/fsl_pci.h>
>
> -static int fsl_pcie_bus_fixup, is_mpc83xx_pci;
> -
> -static void quirk_fsl_pcie_header(struct pci_dev *dev)
> -{
> - u8 hdr_type;
> -
> - /* if we aren't a PCIe don't bother */
> - if (!pci_find_capability(dev, PCI_CAP_ID_EXP))
> - return;
> -
> - /* if we aren't in host mode don't bother */
> - pci_read_config_byte(dev, PCI_HEADER_TYPE, &hdr_type);
> - if ((hdr_type & 0x7f) != PCI_HEADER_TYPE_BRIDGE)
> - return;
> -
> - dev->class = PCI_CLASS_BRIDGE_PCI << 8;
> - fsl_pcie_bus_fixup = 1;
> - return;
> -}
> -
> -static int fsl_indirect_read_config(struct pci_bus *, unsigned int,
> - int, int, u32 *);
> -
> static int fsl_pcie_check_link(struct pci_controller *hose)
> {
> u32 val = 0;
> @@ -109,29 +83,6 @@ static struct pci_ops fsl_indirect_pcie_ops =
> .write = indirect_write_config,
> };
>
> -#define MAX_PHYS_ADDR_BITS 40
> -static u64 pci64_dma_offset = 1ull << MAX_PHYS_ADDR_BITS;
> -
> -static int fsl_pci_dma_set_mask(struct device *dev, u64 dma_mask)
> -{
> - if (!dev->dma_mask || !dma_supported(dev, dma_mask))
> - return -EIO;
> -
> - /*
> - * Fixup PCI devices that are able to DMA to above the physical
> - * address width of the SoC such that we can address any internal
> - * SoC address from across PCI if needed
> - */
> - if ((dev->bus == &pci_bus_type) &&
> - dma_mask >= DMA_BIT_MASK(MAX_PHYS_ADDR_BITS)) {
> - set_dma_ops(dev, &dma_direct_ops);
> - set_dma_offset(dev, pci64_dma_offset);
> - }
> -
> - *dev->dma_mask = dma_mask;
> - return 0;
> -}
> -
> static int setup_one_atmu(struct ccsr_pci __iomem *pci,
> unsigned int index, const struct resource *res,
> resource_size_t offset)
> @@ -417,43 +368,6 @@ static void __init setup_pci_cmd(struct pci_controller *hose)
> }
> }
>
> -void fsl_pcibios_fixup_bus(struct pci_bus *bus)
> -{
> - struct pci_controller *hose = pci_bus_to_host(bus);
> - int i, is_pcie = 0, no_link;
> -
> - /* The root complex bridge comes up with bogus resources,
> - * we copy the PHB ones in.
> - *
> - * With the current generic PCI code, the PHB bus no longer
> - * has bus->resource[0..4] set, so things are a bit more
> - * tricky.
> - */
> -
> - if (fsl_pcie_bus_fixup)
> - is_pcie = early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP);
> - no_link = !!(hose->indirect_type & PPC_INDIRECT_TYPE_NO_PCIE_LINK);
> -
> - if (bus->parent == hose->bus && (is_pcie || no_link)) {
> - for (i = 0; i < PCI_BRIDGE_RESOURCE_NUM; ++i) {
> - struct resource *res = bus->resource[i];
> - struct resource *par;
> -
> - if (!res)
> - continue;
> - if (i == 0)
> - par = &hose->io_resource;
> - else if (i < 4)
> - par = &hose->mem_resources[i-1];
> - else par = NULL;
> -
> - res->start = par ? par->start : 0;
> - res->end = par ? par->end : 0;
> - res->flags = par ? par->flags : 0;
> - }
> - }
> -}
> -
> int __init fsl_add_bridge(struct platform_device *pdev, int is_primary)
> {
> int len;
> @@ -560,475 +474,7 @@ no_bridge:
> pcibios_free_controller(hose);
> return -ENODEV;
> }
> -#endif /* CONFIG_FSL_SOC_BOOKE || CONFIG_PPC_86xx */
> -
> -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_FREESCALE, PCI_ANY_ID, quirk_fsl_pcie_header);
> -
> -#if defined(CONFIG_PPC_83xx) || defined(CONFIG_PPC_MPC512x)
> -struct mpc83xx_pcie_priv {
> - void __iomem *cfg_type0;
> - void __iomem *cfg_type1;
> - u32 dev_base;
> -};
> -
> -struct pex_inbound_window {
> - u32 ar;
> - u32 tar;
> - u32 barl;
> - u32 barh;
> -};
> -
> -/*
> - * With the convention of u-boot, the PCIE outbound window 0 serves
> - * as configuration transactions outbound.
> - */
> -#define PEX_OUTWIN0_BAR 0xCA4
> -#define PEX_OUTWIN0_TAL 0xCA8
> -#define PEX_OUTWIN0_TAH 0xCAC
> -#define PEX_RC_INWIN_BASE 0xE60
> -#define PEX_RCIWARn_EN 0x1
> -
> -static int mpc83xx_pcie_exclude_device(struct pci_bus *bus, unsigned int devfn)
> -{
> - struct pci_controller *hose = pci_bus_to_host(bus);
> -
> - if (hose->indirect_type & PPC_INDIRECT_TYPE_NO_PCIE_LINK)
> - return PCIBIOS_DEVICE_NOT_FOUND;
> - /*
> - * Workaround for the HW bug: for Type 0 configure transactions the
> - * PCI-E controller does not check the device number bits and just
> - * assumes that the device number bits are 0.
> - */
> - if (bus->number == hose->first_busno ||
> - bus->primary == hose->first_busno) {
> - if (devfn & 0xf8)
> - return PCIBIOS_DEVICE_NOT_FOUND;
> - }
> -
> - if (ppc_md.pci_exclude_device) {
> - if (ppc_md.pci_exclude_device(hose, bus->number, devfn))
> - return PCIBIOS_DEVICE_NOT_FOUND;
> - }
> -
> - return PCIBIOS_SUCCESSFUL;
> -}
> -
> -static void __iomem *mpc83xx_pcie_remap_cfg(struct pci_bus *bus,
> - unsigned int devfn, int offset)
> -{
> - struct pci_controller *hose = pci_bus_to_host(bus);
> - struct mpc83xx_pcie_priv *pcie = hose->dn->data;
> - u32 dev_base = bus->number << 24 | devfn << 16;
> - int ret;
> -
> - ret = mpc83xx_pcie_exclude_device(bus, devfn);
> - if (ret)
> - return NULL;
> -
> - offset &= 0xfff;
> -
> - /* Type 0 */
> - if (bus->number == hose->first_busno)
> - return pcie->cfg_type0 + offset;
> -
> - if (pcie->dev_base == dev_base)
> - goto mapped;
> -
> - out_le32(pcie->cfg_type0 + PEX_OUTWIN0_TAL, dev_base);
> -
> - pcie->dev_base = dev_base;
> -mapped:
> - return pcie->cfg_type1 + offset;
> -}
> -
> -static int mpc83xx_pcie_read_config(struct pci_bus *bus, unsigned int devfn,
> - int offset, int len, u32 *val)
> -{
> - void __iomem *cfg_addr;
> -
> - cfg_addr = mpc83xx_pcie_remap_cfg(bus, devfn, offset);
> - if (!cfg_addr)
> - return PCIBIOS_DEVICE_NOT_FOUND;
> -
> - switch (len) {
> - case 1:
> - *val = in_8(cfg_addr);
> - break;
> - case 2:
> - *val = in_le16(cfg_addr);
> - break;
> - default:
> - *val = in_le32(cfg_addr);
> - break;
> - }
> -
> - return PCIBIOS_SUCCESSFUL;
> -}
> -
> -static int mpc83xx_pcie_write_config(struct pci_bus *bus, unsigned int devfn,
> - int offset, int len, u32 val)
> -{
> - struct pci_controller *hose = pci_bus_to_host(bus);
> - void __iomem *cfg_addr;
> -
> - cfg_addr = mpc83xx_pcie_remap_cfg(bus, devfn, offset);
> - if (!cfg_addr)
> - return PCIBIOS_DEVICE_NOT_FOUND;
> -
> - /* PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS */
> - if (offset == PCI_PRIMARY_BUS && bus->number == hose->first_busno)
> - val &= 0xffffff00;
> -
> - switch (len) {
> - case 1:
> - out_8(cfg_addr, val);
> - break;
> - case 2:
> - out_le16(cfg_addr, val);
> - break;
> - default:
> - out_le32(cfg_addr, val);
> - break;
> - }
> -
> - return PCIBIOS_SUCCESSFUL;
> -}
> -
> -static struct pci_ops mpc83xx_pcie_ops = {
> - .read = mpc83xx_pcie_read_config,
> - .write = mpc83xx_pcie_write_config,
> -};
> -
> -static int __init mpc83xx_pcie_setup(struct pci_controller *hose,
> - struct resource *reg)
> -{
> - struct mpc83xx_pcie_priv *pcie;
> - u32 cfg_bar;
> - int ret = -ENOMEM;
> -
> - pcie = zalloc_maybe_bootmem(sizeof(*pcie), GFP_KERNEL);
> - if (!pcie)
> - return ret;
> -
> - pcie->cfg_type0 = ioremap(reg->start, resource_size(reg));
> - if (!pcie->cfg_type0)
> - goto err0;
> -
> - cfg_bar = in_le32(pcie->cfg_type0 + PEX_OUTWIN0_BAR);
> - if (!cfg_bar) {
> - /* PCI-E isn't configured. */
> - ret = -ENODEV;
> - goto err1;
> - }
> -
> - pcie->cfg_type1 = ioremap(cfg_bar, 0x1000);
> - if (!pcie->cfg_type1)
> - goto err1;
> -
> - WARN_ON(hose->dn->data);
> - hose->dn->data = pcie;
> - hose->ops = &mpc83xx_pcie_ops;
> - hose->indirect_type |= PPC_INDIRECT_TYPE_FSL_CFG_REG_LINK;
> -
> - out_le32(pcie->cfg_type0 + PEX_OUTWIN0_TAH, 0);
> - out_le32(pcie->cfg_type0 + PEX_OUTWIN0_TAL, 0);
> -
> - if (fsl_pcie_check_link(hose))
> - hose->indirect_type |= PPC_INDIRECT_TYPE_NO_PCIE_LINK;
> -
> - return 0;
> -err1:
> - iounmap(pcie->cfg_type0);
> -err0:
> - kfree(pcie);
> - return ret;
> -
> -}
> -
> -int __init mpc83xx_add_bridge(struct device_node *dev)
> -{
> - int ret;
> - int len;
> - struct pci_controller *hose;
> - struct resource rsrc_reg;
> - struct resource rsrc_cfg;
> - const int *bus_range;
> - int primary;
> -
> - is_mpc83xx_pci = 1;
> -
> - if (!of_device_is_available(dev)) {
> - pr_warning("%s: disabled by the firmware.\n",
> - dev->full_name);
> - return -ENODEV;
> - }
> - pr_debug("Adding PCI host bridge %s\n", dev->full_name);
> -
> - /* Fetch host bridge registers address */
> - if (of_address_to_resource(dev, 0, &rsrc_reg)) {
> - printk(KERN_WARNING "Can't get pci register base!\n");
> - return -ENOMEM;
> - }
> -
> - memset(&rsrc_cfg, 0, sizeof(rsrc_cfg));
> -
> - if (of_address_to_resource(dev, 1, &rsrc_cfg)) {
> - printk(KERN_WARNING
> - "No pci config register base in dev tree, "
> - "using default\n");
> - /*
> - * MPC83xx supports up to two host controllers
> - * one at 0x8500 has config space registers at 0x8300
> - * one at 0x8600 has config space registers at 0x8380
> - */
> - if ((rsrc_reg.start & 0xfffff) == 0x8500)
> - rsrc_cfg.start = (rsrc_reg.start & 0xfff00000) + 0x8300;
> - else if ((rsrc_reg.start & 0xfffff) == 0x8600)
> - rsrc_cfg.start = (rsrc_reg.start & 0xfff00000) + 0x8380;
> - }
> - /*
> - * Controller at offset 0x8500 is primary
> - */
> - if ((rsrc_reg.start & 0xfffff) == 0x8500)
> - primary = 1;
> - else
> - primary = 0;
> -
> - /* Get bus range if any */
> - bus_range = of_get_property(dev, "bus-range", &len);
> - if (bus_range == NULL || len < 2 * sizeof(int)) {
> - printk(KERN_WARNING "Can't get bus-range for %s, assume"
> - " bus 0\n", dev->full_name);
> - }
> -
> - pci_add_flags(PCI_REASSIGN_ALL_BUS);
> - hose = pcibios_alloc_controller(dev);
> - if (!hose)
> - return -ENOMEM;
> -
> - hose->first_busno = bus_range ? bus_range[0] : 0;
> - hose->last_busno = bus_range ? bus_range[1] : 0xff;
> -
> - if (of_device_is_compatible(dev, "fsl,mpc8314-pcie")) {
> - ret = mpc83xx_pcie_setup(hose, &rsrc_reg);
> - if (ret)
> - goto err0;
> - } else {
> - setup_indirect_pci(hose, rsrc_cfg.start,
> - rsrc_cfg.start + 4, 0);
> - }
> -
> - printk(KERN_INFO "Found FSL PCI host bridge at 0x%016llx. "
> - "Firmware bus number: %d->%d\n",
> - (unsigned long long)rsrc_reg.start, hose->first_busno,
> - hose->last_busno);
> -
> - pr_debug(" ->Hose at 0x%p, cfg_addr=0x%p,cfg_data=0x%p\n",
> - hose, hose->cfg_addr, hose->cfg_data);
> -
> - /* Interpret the "ranges" property */
> - /* This also maps the I/O region and sets isa_io/mem_base */
> - pci_process_bridge_OF_ranges(hose, dev, primary);
> -
> - return 0;
> -err0:
> - pcibios_free_controller(hose);
> - return ret;
> -}
> -#endif /* CONFIG_PPC_83xx */
> -
> -u64 fsl_pci_immrbar_base(struct pci_controller *hose)
> -{
> -#ifdef CONFIG_PPC_83xx
> - if (is_mpc83xx_pci) {
> - struct mpc83xx_pcie_priv *pcie = hose->dn->data;
> - struct pex_inbound_window *in;
> - int i;
> -
> - /* Walk the Root Complex Inbound windows to match IMMR base */
> - in = pcie->cfg_type0 + PEX_RC_INWIN_BASE;
> - for (i = 0; i < 4; i++) {
> - /* not enabled, skip */
> - if (!in_le32(&in[i].ar) & PEX_RCIWARn_EN)
> - continue;
> -
> - if (get_immrbase() == in_le32(&in[i].tar))
> - return (u64)in_le32(&in[i].barh) << 32 |
> - in_le32(&in[i].barl);
> - }
> -
> - printk(KERN_WARNING "could not find PCI BAR matching IMMR\n");
> - }
> -#endif
> -
> -#if defined(CONFIG_FSL_SOC_BOOKE) || defined(CONFIG_PPC_86xx)
> - if (!is_mpc83xx_pci) {
> - u32 base;
> -
> - pci_bus_read_config_dword(hose->bus,
> - PCI_DEVFN(0, 0), PCI_BASE_ADDRESS_0, &base);
> - return base;
> - }
> -#endif
> -
> - return 0;
> -}
>
> -#ifdef CONFIG_E500
> -static int mcheck_handle_load(struct pt_regs *regs, u32 inst)
> -{
> - unsigned int rd, ra, rb, d;
> -
> - rd = get_rt(inst);
> - ra = get_ra(inst);
> - rb = get_rb(inst);
> - d = get_d(inst);
> -
> - switch (get_op(inst)) {
> - case 31:
> - switch (get_xop(inst)) {
> - case OP_31_XOP_LWZX:
> - case OP_31_XOP_LWBRX:
> - regs->gpr[rd] = 0xffffffff;
> - break;
> -
> - case OP_31_XOP_LWZUX:
> - regs->gpr[rd] = 0xffffffff;
> - regs->gpr[ra] += regs->gpr[rb];
> - break;
> -
> - case OP_31_XOP_LBZX:
> - regs->gpr[rd] = 0xff;
> - break;
> -
> - case OP_31_XOP_LBZUX:
> - regs->gpr[rd] = 0xff;
> - regs->gpr[ra] += regs->gpr[rb];
> - break;
> -
> - case OP_31_XOP_LHZX:
> - case OP_31_XOP_LHBRX:
> - regs->gpr[rd] = 0xffff;
> - break;
> -
> - case OP_31_XOP_LHZUX:
> - regs->gpr[rd] = 0xffff;
> - regs->gpr[ra] += regs->gpr[rb];
> - break;
> -
> - case OP_31_XOP_LHAX:
> - regs->gpr[rd] = ~0UL;
> - break;
> -
> - case OP_31_XOP_LHAUX:
> - regs->gpr[rd] = ~0UL;
> - regs->gpr[ra] += regs->gpr[rb];
> - break;
> -
> - default:
> - return 0;
> - }
> - break;
> -
> - case OP_LWZ:
> - regs->gpr[rd] = 0xffffffff;
> - break;
> -
> - case OP_LWZU:
> - regs->gpr[rd] = 0xffffffff;
> - regs->gpr[ra] += (s16)d;
> - break;
> -
> - case OP_LBZ:
> - regs->gpr[rd] = 0xff;
> - break;
> -
> - case OP_LBZU:
> - regs->gpr[rd] = 0xff;
> - regs->gpr[ra] += (s16)d;
> - break;
> -
> - case OP_LHZ:
> - regs->gpr[rd] = 0xffff;
> - break;
> -
> - case OP_LHZU:
> - regs->gpr[rd] = 0xffff;
> - regs->gpr[ra] += (s16)d;
> - break;
> -
> - case OP_LHA:
> - regs->gpr[rd] = ~0UL;
> - break;
> -
> - case OP_LHAU:
> - regs->gpr[rd] = ~0UL;
> - regs->gpr[ra] += (s16)d;
> - break;
> -
> - default:
> - return 0;
> - }
> -
> - return 1;
> -}
> -
> -static int is_in_pci_mem_space(phys_addr_t addr)
> -{
> - struct pci_controller *hose;
> - struct resource *res;
> - int i;
> -
> - list_for_each_entry(hose, &hose_list, list_node) {
> - if (!(hose->indirect_type & PPC_INDIRECT_TYPE_EXT_REG))
> - continue;
> -
> - for (i = 0; i < 3; i++) {
> - res = &hose->mem_resources[i];
> - if ((res->flags & IORESOURCE_MEM) &&
> - addr >= res->start && addr <= res->end)
> - return 1;
> - }
> - }
> - return 0;
> -}
> -
> -int fsl_pci_mcheck_exception(struct pt_regs *regs)
> -{
> - u32 inst;
> - int ret;
> - phys_addr_t addr = 0;
> -
> - /* Let KVM/QEMU deal with the exception */
> - if (regs->msr & MSR_GS)
> - return 0;
> -
> -#ifdef CONFIG_PHYS_64BIT
> - addr = mfspr(SPRN_MCARU);
> - addr <<= 32;
> -#endif
> - addr += mfspr(SPRN_MCAR);
> -
> - if (is_in_pci_mem_space(addr)) {
> - if (user_mode(regs)) {
> - pagefault_disable();
> - ret = get_user(regs->nip, &inst);
> - pagefault_enable();
> - } else {
> - ret = probe_kernel_address(regs->nip, inst);
> - }
> -
> - if (mcheck_handle_load(regs, inst)) {
> - regs->nip += 4;
> - return 1;
> - }
> - }
> -
> - return 0;
> -}
> -#endif
> -
> -#if defined(CONFIG_FSL_SOC_BOOKE) || defined(CONFIG_PPC_86xx)
> static const struct of_device_id pci_ids[] = {
> { .compatible = "fsl,mpc8540-pci", },
> { .compatible = "fsl,mpc8548-pcie", },
> @@ -1050,40 +496,6 @@ static const struct of_device_id pci_ids[] = {
> {},
> };
>
> -struct device_node *fsl_pci_primary;
> -
> -void fsl_pci_assign_primary(void)
> -{
> - struct device_node *np;
> -
> - /* Callers can specify the primary bus using other means. */
> - if (fsl_pci_primary)
> - return;
> -
> - /* If a PCI host bridge contains an ISA node, it's primary. */
> - np = of_find_node_by_type(NULL, "isa");
> - while ((fsl_pci_primary = of_get_parent(np))) {
> - of_node_put(np);
> - np = fsl_pci_primary;
> -
> - if (of_match_node(pci_ids, np) && of_device_is_available(np))
> - return;
> - }
> -
> - /*
> - * If there's no PCI host bridge with ISA, arbitrarily
> - * designate one as primary. This can go away once
> - * various bugs with primary-less systems are fixed.
> - */
> - for_each_matching_node(np, pci_ids) {
> - if (of_device_is_available(np)) {
> - fsl_pci_primary = np;
> - of_node_put(np);
> - return;
> - }
> - }
> -}
> -
> static int fsl_pci_probe(struct platform_device *pdev)
> {
> int ret;
> @@ -1143,4 +555,3 @@ static int __init fsl_pci_init(void)
> return platform_driver_register(&fsl_pci_driver);
> }
> arch_initcall(fsl_pci_init);
> -#endif
> diff --git a/arch/powerpc/sysdev/fsl_pci.h b/include/linux/fsl/pci-common.h
> similarity index 79%
> copy from arch/powerpc/sysdev/fsl_pci.h
> copy to include/linux/fsl/pci-common.h
> index 8d455df..5e4f683 100644
> --- a/arch/powerpc/sysdev/fsl_pci.h
> +++ b/include/linux/fsl/pci-common.h
> @@ -1,5 +1,5 @@
> /*
> - * MPC85xx/86xx PCI Express structure define
> + * MPC85xx/86xx/LS PCI Express structure define
> *
> * Copyright 2007,2011 Freescale Semiconductor, Inc
> *
> @@ -11,15 +11,8 @@
> */
>
> #ifdef __KERNEL__
> -#ifndef __POWERPC_FSL_PCI_H
> -#define __POWERPC_FSL_PCI_H
> -
> -struct platform_device;
> -
> -
> -/* FSL PCI controller BRR1 register */
> -#define PCI_FSL_BRR1 0xbf8
> -#define PCI_FSL_BRR1_VER 0xffff
> +#ifndef __PCI_COMMON_H
> +#define __PCI_COMMON_H
>
> #define PCIE_LTSSM 0x0404 /* PCIE Link Training and Status */
> #define PCIE_LTSSM_L0 0x16 /* L0 state */
> @@ -52,7 +45,7 @@ struct pci_inbound_window_regs {
> u8 res2[12];
> };
>
> -/* PCI/PCI Express IO block registers for 85xx/86xx */
> +/* PCI/PCI Express IO block registers for 85xx/86xx/LS */
> struct ccsr_pci {
> __be32 config_addr; /* 0x.000 - PCI/PCIE Configuration Address Register */
> __be32 config_data; /* 0x.004 - PCI/PCIE Configuration Data Register */
> @@ -109,33 +102,5 @@ struct ccsr_pci {
>
> };
>
> -extern int fsl_add_bridge(struct platform_device *pdev, int is_primary);
> -extern void fsl_pcibios_fixup_bus(struct pci_bus *bus);
> -extern int mpc83xx_add_bridge(struct device_node *dev);
> -u64 fsl_pci_immrbar_base(struct pci_controller *hose);
> -
> -extern struct device_node *fsl_pci_primary;
> -
> -#ifdef CONFIG_PCI
> -void fsl_pci_assign_primary(void);
> -#else
> -static inline void fsl_pci_assign_primary(void) {}
> -#endif
> -
> -#ifdef CONFIG_EDAC_MPC85XX
> -int mpc85xx_pci_err_probe(struct platform_device *op);
> -#else
> -static inline int mpc85xx_pci_err_probe(struct platform_device *op)
> -{
> - return -ENOTSUPP;
> -}
> -#endif
> -
> -#ifdef CONFIG_FSL_PCI
> -extern int fsl_pci_mcheck_exception(struct pt_regs *);
> -#else
> -static inline int fsl_pci_mcheck_exception(struct pt_regs *regs) {return 0; }
> -#endif
> -
> -#endif /* __POWERPC_FSL_PCI_H */
> +#endif /* __PCI_COMMON_H */
> #endif /* __KERNEL__ */
> --
> 1.8.1.2
>
>
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