diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-01 18:19:05 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-01 18:19:05 -0700 |
commit | 61464c8357c8f6b780e4c44f5c79471799c51ca7 (patch) | |
tree | 4509cf075403965528f380f2f825c46908fb7d4e /arch/arm/mach-tegra/pcie.c | |
parent | 47061eda2584b9e4516d1e3a9713406a3a559ac8 (diff) | |
parent | 9cf1c871526cf6bfec2a653e1e068ee72592542c (diff) |
Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM soc general cleanups from Olof Johansson:
"This is a large branch that contains a handful of different cleanups:
- Fixing up the I/O space remapping on PCI on ARM. This is a series
from Rob Herring that restructures how all pci devices allocate I/O
space, and it's part of the work to allow multiplatform kernels.
- A number of cleanup series for OMAP, moving and removing some
headers, sparse irq rework and in general preparation for
multiplatform.
- Final removal of all non-DT boards for Tegra, it is now
device-tree-only!
- Removal of a stale platform, nxp4008. It's an old mobile chipset
that is no longer in use, and was very likely never really used
with a mainline kernel. We have not been able to find anyone
interested in keeping it around in the kernel.
- Removal of the legacy dmaengine driver on tegra
+ A handful of other things that I haven't described above."
Fix up some conflicts with the staging tree (and because nxp4008 was
removed)
* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (184 commits)
ARM: OMAP2+: serial: Change MAX_HSUART_PORTS to 6
ARM: OMAP4: twl-common: Support for additional devices on i2c1 bus
ARM: mmp: using for_each_set_bit to simplify the code
ARM: tegra: harmony: fix ldo7 regulator-name
ARM: OMAP2+: Make omap4-keypad.h local
ARM: OMAP2+: Make l4_3xxx.h local
ARM: OMAP2+: Make l4_2xxx.h local
ARM: OMAP2+: Make l3_3xxx.h local
ARM: OMAP2+: Make l3_2xxx.h local
ARM: OMAP1: Move irda.h from plat to mach
ARM: OMAP2+: Make hdq1w.h local
ARM: OMAP2+: Make gpmc-smsc911x.h local
ARM: OMAP2+: Make gpmc-smc91x.h local
ARM: OMAP1: Move flash.h from plat to mach
ARM: OMAP2+: Make debug-devices.h local
ARM: OMAP1: Move board-voiceblue.h from plat to mach
ARM: OMAP1: Move board-sx1.h from plat to mach
ARM: OMAP2+: Make omap-wakeupgen.h local
ARM: OMAP2+: Make omap-secure.h local
ARM: OMAP2+: Make ctrl_module_wkup_44xx.h local
...
Diffstat (limited to 'arch/arm/mach-tegra/pcie.c')
-rw-r--r-- | arch/arm/mach-tegra/pcie.c | 95 |
1 files changed, 22 insertions, 73 deletions
diff --git a/arch/arm/mach-tegra/pcie.c b/arch/arm/mach-tegra/pcie.c index c25a2a4f2e3..a8dba6489c9 100644 --- a/arch/arm/mach-tegra/pcie.c +++ b/arch/arm/mach-tegra/pcie.c @@ -171,8 +171,6 @@ static void __iomem *reg_pmc_base = IO_ADDRESS(TEGRA_PMC_BASE); * 0x90000000 - 0x9fffffff - non-prefetchable memory * 0xa0000000 - 0xbfffffff - prefetchable memory */ -#define TEGRA_PCIE_BASE 0x80000000 - #define PCIE_REGS_SZ SZ_16K #define PCIE_CFG_OFF PCIE_REGS_SZ #define PCIE_CFG_SZ SZ_1M @@ -180,8 +178,6 @@ static void __iomem *reg_pmc_base = IO_ADDRESS(TEGRA_PMC_BASE); #define PCIE_EXT_CFG_SZ SZ_1M #define PCIE_IOMAP_SZ (PCIE_REGS_SZ + PCIE_CFG_SZ + PCIE_EXT_CFG_SZ) -#define MMIO_BASE (TEGRA_PCIE_BASE + SZ_4M) -#define MMIO_SIZE SZ_64K #define MEM_BASE_0 (TEGRA_PCIE_BASE + SZ_256M) #define MEM_SIZE_0 SZ_128M #define MEM_BASE_1 (MEM_BASE_0 + MEM_SIZE_0) @@ -204,10 +200,9 @@ struct tegra_pcie_port { bool link_up; - char io_space_name[16]; char mem_space_name[16]; char prefetch_space_name[20]; - struct resource res[3]; + struct resource res[2]; }; struct tegra_pcie_info { @@ -223,17 +218,7 @@ struct tegra_pcie_info { struct clk *pll_e; }; -static struct tegra_pcie_info tegra_pcie = { - .res_mmio = { - .name = "PCI IO", - .start = MMIO_BASE, - .end = MMIO_BASE + MMIO_SIZE - 1, - .flags = IORESOURCE_MEM, - }, -}; - -void __iomem *tegra_pcie_io_base; -EXPORT_SYMBOL(tegra_pcie_io_base); +static struct tegra_pcie_info tegra_pcie; static inline void afi_writel(u32 value, unsigned long offset) { @@ -381,24 +366,7 @@ static int tegra_pcie_setup(int nr, struct pci_sys_data *sys) pp = tegra_pcie.port + nr; pp->root_bus_nr = sys->busnr; - /* - * IORESOURCE_IO - */ - snprintf(pp->io_space_name, sizeof(pp->io_space_name), - "PCIe %d I/O", pp->index); - pp->io_space_name[sizeof(pp->io_space_name) - 1] = 0; - pp->res[0].name = pp->io_space_name; - if (pp->index == 0) { - pp->res[0].start = PCIBIOS_MIN_IO; - pp->res[0].end = pp->res[0].start + SZ_32K - 1; - } else { - pp->res[0].start = PCIBIOS_MIN_IO + SZ_32K; - pp->res[0].end = IO_SPACE_LIMIT; - } - pp->res[0].flags = IORESOURCE_IO; - if (request_resource(&ioport_resource, &pp->res[0])) - panic("Request PCIe IO resource failed\n"); - pci_add_resource_offset(&sys->resources, &pp->res[0], sys->io_offset); + pci_ioremap_io(nr * SZ_64K, TEGRA_PCIE_IO_BASE); /* * IORESOURCE_MEM @@ -406,18 +374,18 @@ static int tegra_pcie_setup(int nr, struct pci_sys_data *sys) snprintf(pp->mem_space_name, sizeof(pp->mem_space_name), "PCIe %d MEM", pp->index); pp->mem_space_name[sizeof(pp->mem_space_name) - 1] = 0; - pp->res[1].name = pp->mem_space_name; + pp->res[0].name = pp->mem_space_name; if (pp->index == 0) { - pp->res[1].start = MEM_BASE_0; - pp->res[1].end = pp->res[1].start + MEM_SIZE_0 - 1; + pp->res[0].start = MEM_BASE_0; + pp->res[0].end = pp->res[0].start + MEM_SIZE_0 - 1; } else { - pp->res[1].start = MEM_BASE_1; - pp->res[1].end = pp->res[1].start + MEM_SIZE_1 - 1; + pp->res[0].start = MEM_BASE_1; + pp->res[0].end = pp->res[0].start + MEM_SIZE_1 - 1; } - pp->res[1].flags = IORESOURCE_MEM; - if (request_resource(&iomem_resource, &pp->res[1])) + pp->res[0].flags = IORESOURCE_MEM; + if (request_resource(&iomem_resource, &pp->res[0])) panic("Request PCIe Memory resource failed\n"); - pci_add_resource_offset(&sys->resources, &pp->res[1], sys->mem_offset); + pci_add_resource_offset(&sys->resources, &pp->res[0], sys->mem_offset); /* * IORESOURCE_MEM | IORESOURCE_PREFETCH @@ -425,18 +393,18 @@ static int tegra_pcie_setup(int nr, struct pci_sys_data *sys) snprintf(pp->prefetch_space_name, sizeof(pp->prefetch_space_name), "PCIe %d PREFETCH MEM", pp->index); pp->prefetch_space_name[sizeof(pp->prefetch_space_name) - 1] = 0; - pp->res[2].name = pp->prefetch_space_name; + pp->res[1].name = pp->prefetch_space_name; if (pp->index == 0) { - pp->res[2].start = PREFETCH_MEM_BASE_0; - pp->res[2].end = pp->res[2].start + PREFETCH_MEM_SIZE_0 - 1; + pp->res[1].start = PREFETCH_MEM_BASE_0; + pp->res[1].end = pp->res[1].start + PREFETCH_MEM_SIZE_0 - 1; } else { - pp->res[2].start = PREFETCH_MEM_BASE_1; - pp->res[2].end = pp->res[2].start + PREFETCH_MEM_SIZE_1 - 1; + pp->res[1].start = PREFETCH_MEM_BASE_1; + pp->res[1].end = pp->res[1].start + PREFETCH_MEM_SIZE_1 - 1; } - pp->res[2].flags = IORESOURCE_MEM | IORESOURCE_PREFETCH; - if (request_resource(&iomem_resource, &pp->res[2])) + pp->res[1].flags = IORESOURCE_MEM | IORESOURCE_PREFETCH; + if (request_resource(&iomem_resource, &pp->res[1])) panic("Request PCIe Prefetch Memory resource failed\n"); - pci_add_resource_offset(&sys->resources, &pp->res[2], sys->mem_offset); + pci_add_resource_offset(&sys->resources, &pp->res[1], sys->mem_offset); return 1; } @@ -531,8 +499,8 @@ static void tegra_pcie_setup_translations(void) /* Bar 2: downstream IO bar */ fpci_bar = ((__u32)0xfdfc << 16); - size = MMIO_SIZE; - axi_address = MMIO_BASE; + size = SZ_128K; + axi_address = TEGRA_PCIE_IO_BASE; afi_writel(axi_address, AFI_AXI_BAR2_START); afi_writel(size >> 12, AFI_AXI_BAR2_SZ); afi_writel(fpci_bar, AFI_FPCI_BAR2); @@ -766,7 +734,6 @@ static void tegra_pcie_clocks_put(void) static int __init tegra_pcie_get_resources(void) { - struct resource *res_mmio = &tegra_pcie.res_mmio; int err; err = tegra_pcie_clocks_get(); @@ -788,34 +755,16 @@ static int __init tegra_pcie_get_resources(void) goto err_map_reg; } - err = request_resource(&iomem_resource, res_mmio); - if (err) { - pr_err("PCIE: Failed to request resources: %d\n", err); - goto err_req_io; - } - - tegra_pcie_io_base = ioremap_nocache(res_mmio->start, - resource_size(res_mmio)); - if (tegra_pcie_io_base == NULL) { - pr_err("PCIE: Failed to map IO\n"); - err = -ENOMEM; - goto err_map_io; - } - err = request_irq(INT_PCIE_INTR, tegra_pcie_isr, IRQF_SHARED, "PCIE", &tegra_pcie); if (err) { pr_err("PCIE: Failed to register IRQ: %d\n", err); - goto err_irq; + goto err_req_io; } set_irq_flags(INT_PCIE_INTR, IRQF_VALID); return 0; -err_irq: - iounmap(tegra_pcie_io_base); -err_map_io: - release_resource(&tegra_pcie.res_mmio); err_req_io: iounmap(tegra_pcie.regs); err_map_reg: |