diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-06 17:58:22 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-06 17:58:22 -0800 |
commit | e4e88f31bcb5f05f24b9ae518d4ecb44e1a7774d (patch) | |
tree | 9eef6998f5bbd1a2c999011d9e0151f00c6e7297 /arch/powerpc/sysdev/ppc4xx_pci.c | |
parent | 9753dfe19a85e7e45a34a56f4cb2048bb4f50e27 (diff) | |
parent | ef88e3911c0e0301e73fa3b3b2567aabdbe17cc4 (diff) |
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (185 commits)
powerpc: fix compile error with 85xx/p1010rdb.c
powerpc: fix compile error with 85xx/p1023_rds.c
powerpc/fsl: add MSI support for the Freescale hypervisor
arch/powerpc/sysdev/fsl_rmu.c: introduce missing kfree
powerpc/fsl: Add support for Integrated Flash Controller
powerpc/fsl: update compatiable on fsl 16550 uart nodes
powerpc/85xx: fix PCI and localbus properties in p1022ds.dts
powerpc/85xx: re-enable ePAPR byte channel driver in corenet32_smp_defconfig
powerpc/fsl: Update defconfigs to enable some standard FSL HW features
powerpc: Add TBI PHY node to first MDIO bus
sbc834x: put full compat string in board match check
powerpc/fsl-pci: Allow 64-bit PCIe devices to DMA to any memory address
powerpc: Fix unpaired probe_hcall_entry and probe_hcall_exit
offb: Fix setting of the pseudo-palette for >8bpp
offb: Add palette hack for qemu "standard vga" framebuffer
offb: Fix bug in calculating requested vram size
powerpc/boot: Change the WARN to INFO for boot wrapper overlap message
powerpc/44x: Fix build error on currituck platform
powerpc/boot: Change the load address for the wrapper to fit the kernel
powerpc/44x: Enable CRASH_DUMP for 440x
...
Fix up a trivial conflict in arch/powerpc/include/asm/cputime.h due to
the additional sparse-checking code for cputime_t.
Diffstat (limited to 'arch/powerpc/sysdev/ppc4xx_pci.c')
-rw-r--r-- | arch/powerpc/sysdev/ppc4xx_pci.c | 85 |
1 files changed, 77 insertions, 8 deletions
diff --git a/arch/powerpc/sysdev/ppc4xx_pci.c b/arch/powerpc/sysdev/ppc4xx_pci.c index 862f11b3821..4f05f754234 100644 --- a/arch/powerpc/sysdev/ppc4xx_pci.c +++ b/arch/powerpc/sysdev/ppc4xx_pci.c @@ -185,9 +185,15 @@ static int __init ppc4xx_parse_dma_ranges(struct pci_controller *hose, out: dma_offset_set = 1; pci_dram_offset = res->start; + hose->dma_window_base_cur = res->start; + hose->dma_window_size = resource_size(res); printk(KERN_INFO "4xx PCI DMA offset set to 0x%08lx\n", pci_dram_offset); + printk(KERN_INFO "4xx PCI DMA window base to 0x%016llx\n", + (unsigned long long)hose->dma_window_base_cur); + printk(KERN_INFO "DMA window size 0x%016llx\n", + (unsigned long long)hose->dma_window_size); return 0; } @@ -647,6 +653,7 @@ static unsigned int ppc4xx_pciex_port_count; struct ppc4xx_pciex_hwops { + bool want_sdr; int (*core_init)(struct device_node *np); int (*port_init_hw)(struct ppc4xx_pciex_port *port); int (*setup_utl)(struct ppc4xx_pciex_port *port); @@ -916,6 +923,7 @@ static int ppc440speB_pciex_init_utl(struct ppc4xx_pciex_port *port) static struct ppc4xx_pciex_hwops ppc440speA_pcie_hwops __initdata = { + .want_sdr = true, .core_init = ppc440spe_pciex_core_init, .port_init_hw = ppc440speA_pciex_init_port_hw, .setup_utl = ppc440speA_pciex_init_utl, @@ -924,6 +932,7 @@ static struct ppc4xx_pciex_hwops ppc440speA_pcie_hwops __initdata = static struct ppc4xx_pciex_hwops ppc440speB_pcie_hwops __initdata = { + .want_sdr = true, .core_init = ppc440spe_pciex_core_init, .port_init_hw = ppc440speB_pciex_init_port_hw, .setup_utl = ppc440speB_pciex_init_utl, @@ -1034,6 +1043,7 @@ static int ppc460ex_pciex_init_utl(struct ppc4xx_pciex_port *port) static struct ppc4xx_pciex_hwops ppc460ex_pcie_hwops __initdata = { + .want_sdr = true, .core_init = ppc460ex_pciex_core_init, .port_init_hw = ppc460ex_pciex_init_port_hw, .setup_utl = ppc460ex_pciex_init_utl, @@ -1181,6 +1191,7 @@ done: } static struct ppc4xx_pciex_hwops ppc460sx_pcie_hwops __initdata = { + .want_sdr = true, .core_init = ppc460sx_pciex_core_init, .port_init_hw = ppc460sx_pciex_init_port_hw, .setup_utl = ppc460sx_pciex_init_utl, @@ -1276,6 +1287,7 @@ static int ppc405ex_pciex_init_utl(struct ppc4xx_pciex_port *port) static struct ppc4xx_pciex_hwops ppc405ex_pcie_hwops __initdata = { + .want_sdr = true, .core_init = ppc405ex_pciex_core_init, .port_init_hw = ppc405ex_pciex_init_port_hw, .setup_utl = ppc405ex_pciex_init_utl, @@ -1284,6 +1296,52 @@ static struct ppc4xx_pciex_hwops ppc405ex_pcie_hwops __initdata = #endif /* CONFIG_40x */ +#ifdef CONFIG_476FPE +static int __init ppc_476fpe_pciex_core_init(struct device_node *np) +{ + return 4; +} + +static void __init ppc_476fpe_pciex_check_link(struct ppc4xx_pciex_port *port) +{ + u32 timeout_ms = 20; + u32 val = 0, mask = (PECFG_TLDLP_LNKUP|PECFG_TLDLP_PRESENT); + void __iomem *mbase = ioremap(port->cfg_space.start + 0x10000000, + 0x1000); + + printk(KERN_INFO "PCIE%d: Checking link...\n", port->index); + + if (mbase == NULL) { + printk(KERN_WARNING "PCIE%d: failed to get cfg space\n", + port->index); + return; + } + + while (timeout_ms--) { + val = in_le32(mbase + PECFG_TLDLP); + + if ((val & mask) == mask) + break; + msleep(10); + } + + if (val & PECFG_TLDLP_PRESENT) { + printk(KERN_INFO "PCIE%d: link is up !\n", port->index); + port->link = 1; + } else + printk(KERN_WARNING "PCIE%d: Link up failed\n", port->index); + + iounmap(mbase); + return; +} + +static struct ppc4xx_pciex_hwops ppc_476fpe_pcie_hwops __initdata = +{ + .core_init = ppc_476fpe_pciex_core_init, + .check_link = ppc_476fpe_pciex_check_link, +}; +#endif /* CONFIG_476FPE */ + /* Check that the core has been initied and if not, do it */ static int __init ppc4xx_pciex_check_core_init(struct device_node *np) { @@ -1309,6 +1367,10 @@ static int __init ppc4xx_pciex_check_core_init(struct device_node *np) if (of_device_is_compatible(np, "ibm,plb-pciex-405ex")) ppc4xx_pciex_hwops = &ppc405ex_pcie_hwops; #endif +#ifdef CONFIG_476FPE + if (of_device_is_compatible(np, "ibm,plb-pciex-476fpe")) + ppc4xx_pciex_hwops = &ppc_476fpe_pcie_hwops; +#endif if (ppc4xx_pciex_hwops == NULL) { printk(KERN_WARNING "PCIE: unknown host type %s\n", np->full_name); @@ -1617,6 +1679,10 @@ static int __init ppc4xx_setup_one_pciex_POM(struct ppc4xx_pciex_port *port, dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKL, sa | DCRO_PEGPL_460SX_OMR1MSKL_UOT | DCRO_PEGPL_OMRxMSKL_VAL); + else if (of_device_is_compatible(port->node, "ibm,plb-pciex-476fpe")) + dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKL, + sa | DCRO_PEGPL_476FPE_OMR1MSKL_UOT + | DCRO_PEGPL_OMRxMSKL_VAL); else dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKL, sa | DCRO_PEGPL_OMR1MSKL_UOT @@ -1739,9 +1805,10 @@ static void __init ppc4xx_configure_pciex_PIMs(struct ppc4xx_pciex_port *port, /* Calculate window size */ sa = (0xffffffffffffffffull << ilog2(size)); if (res->flags & IORESOURCE_PREFETCH) - sa |= 0x8; + sa |= PCI_BASE_ADDRESS_MEM_PREFETCH; - if (of_device_is_compatible(port->node, "ibm,plb-pciex-460sx")) + if (of_device_is_compatible(port->node, "ibm,plb-pciex-460sx") || + of_device_is_compatible(port->node, "ibm,plb-pciex-476fpe")) sa |= PCI_BASE_ADDRESS_MEM_TYPE_64; out_le32(mbase + PECFG_BAR0HMPA, RES_TO_U32_HIGH(sa)); @@ -1972,13 +2039,15 @@ static void __init ppc4xx_probe_pciex_bridge(struct device_node *np) } port->node = of_node_get(np); - pval = of_get_property(np, "sdr-base", NULL); - if (pval == NULL) { - printk(KERN_ERR "PCIE: missing sdr-base for %s\n", - np->full_name); - return; + if (ppc4xx_pciex_hwops->want_sdr) { + pval = of_get_property(np, "sdr-base", NULL); + if (pval == NULL) { + printk(KERN_ERR "PCIE: missing sdr-base for %s\n", + np->full_name); + return; + } + port->sdr_base = *pval; } - port->sdr_base = *pval; /* Check if device_type property is set to "pci" or "pci-endpoint". * Resulting from this setup this PCIe port will be configured |