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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-02 03:19:05 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-02 03:19:05 +0200 |
commit | 61464c8357c8f6b780e4c44f5c79471799c51ca7 (patch) | |
tree | 4509cf075403965528f380f2f825c46908fb7d4e /arch/arm/mach-mv78xx0/pcie.c | |
parent | Merge tag 'fixes-non-critical' of git://git.kernel.org/pub/scm/linux/kernel/g... (diff) | |
parent | Merge tag 'omap-devel-board-late-v3-for-v3.7' of git://git.kernel.org/pub/scm... (diff) | |
download | linux-61464c8357c8f6b780e4c44f5c79471799c51ca7.tar.xz linux-61464c8357c8f6b780e4c44f5c79471799c51ca7.zip |
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-mv78xx0/pcie.c')
-rw-r--r-- | arch/arm/mach-mv78xx0/pcie.c | 110 |
1 files changed, 33 insertions, 77 deletions
diff --git a/arch/arm/mach-mv78xx0/pcie.c b/arch/arm/mach-mv78xx0/pcie.c index 2e56e86b6d68..26a059b4f472 100644 --- a/arch/arm/mach-mv78xx0/pcie.c +++ b/arch/arm/mach-mv78xx0/pcie.c @@ -15,6 +15,7 @@ #include <asm/mach/pci.h> #include <plat/pcie.h> #include <plat/addr-map.h> +#include <mach/mv78xx0.h> #include "common.h" struct pcie_port { @@ -23,16 +24,13 @@ struct pcie_port { u8 root_bus_nr; void __iomem *base; spinlock_t conf_lock; - char io_space_name[16]; char mem_space_name[16]; - struct resource res[2]; + struct resource res; }; static struct pcie_port pcie_port[8]; static int num_pcie_ports; static struct resource pcie_io_space; -static struct resource pcie_mem_space; - void __init mv78xx0_pcie_id(u32 *dev, u32 *rev) { @@ -40,102 +38,59 @@ void __init mv78xx0_pcie_id(u32 *dev, u32 *rev) *rev = orion_pcie_rev((void __iomem *)PCIE00_VIRT_BASE); } +u32 pcie_port_size[8] = { + 0, + 0x30000000, + 0x10000000, + 0x10000000, + 0x08000000, + 0x08000000, + 0x08000000, + 0x04000000, +}; + static void __init mv78xx0_pcie_preinit(void) { int i; u32 size_each; u32 start; - int win; + int win = 0; pcie_io_space.name = "PCIe I/O Space"; pcie_io_space.start = MV78XX0_PCIE_IO_PHYS_BASE(0); pcie_io_space.end = MV78XX0_PCIE_IO_PHYS_BASE(0) + MV78XX0_PCIE_IO_SIZE * 8 - 1; - pcie_io_space.flags = IORESOURCE_IO; + pcie_io_space.flags = IORESOURCE_MEM; if (request_resource(&iomem_resource, &pcie_io_space)) panic("can't allocate PCIe I/O space"); - pcie_mem_space.name = "PCIe MEM Space"; - pcie_mem_space.start = MV78XX0_PCIE_MEM_PHYS_BASE; - pcie_mem_space.end = - MV78XX0_PCIE_MEM_PHYS_BASE + MV78XX0_PCIE_MEM_SIZE - 1; - pcie_mem_space.flags = IORESOURCE_MEM; - if (request_resource(&iomem_resource, &pcie_mem_space)) - panic("can't allocate PCIe MEM space"); + if (num_pcie_ports > 7) + panic("invalid number of PCIe ports"); + + size_each = pcie_port_size[num_pcie_ports]; + start = MV78XX0_PCIE_MEM_PHYS_BASE; for (i = 0; i < num_pcie_ports; i++) { struct pcie_port *pp = pcie_port + i; - snprintf(pp->io_space_name, sizeof(pp->io_space_name), - "PCIe %d.%d I/O", pp->maj, pp->min); - pp->io_space_name[sizeof(pp->io_space_name) - 1] = 0; - pp->res[0].name = pp->io_space_name; - pp->res[0].start = MV78XX0_PCIE_IO_PHYS_BASE(i); - pp->res[0].end = pp->res[0].start + MV78XX0_PCIE_IO_SIZE - 1; - pp->res[0].flags = IORESOURCE_IO; - snprintf(pp->mem_space_name, sizeof(pp->mem_space_name), "PCIe %d.%d MEM", pp->maj, pp->min); pp->mem_space_name[sizeof(pp->mem_space_name) - 1] = 0; - pp->res[1].name = pp->mem_space_name; - pp->res[1].flags = IORESOURCE_MEM; - } - - switch (num_pcie_ports) { - case 0: - size_each = 0; - break; - - case 1: - size_each = 0x30000000; - break; - - case 2 ... 3: - size_each = 0x10000000; - break; - - case 4 ... 6: - size_each = 0x08000000; - break; - - case 7: - size_each = 0x04000000; - break; - - default: - panic("invalid number of PCIe ports"); - } - - start = MV78XX0_PCIE_MEM_PHYS_BASE; - for (i = 0; i < num_pcie_ports; i++) { - struct pcie_port *pp = pcie_port + i; - - pp->res[1].start = start; - pp->res[1].end = start + size_each - 1; + pp->res.name = pp->mem_space_name; + pp->res.flags = IORESOURCE_MEM; + pp->res.start = start; + pp->res.end = start + size_each - 1; start += size_each; - } - - for (i = 0; i < num_pcie_ports; i++) { - struct pcie_port *pp = pcie_port + i; - if (request_resource(&pcie_io_space, &pp->res[0])) - panic("can't allocate PCIe I/O sub-space"); - - if (request_resource(&pcie_mem_space, &pp->res[1])) + if (request_resource(&iomem_resource, &pp->res)) panic("can't allocate PCIe MEM sub-space"); - } - win = 0; - for (i = 0; i < num_pcie_ports; i++) { - struct pcie_port *pp = pcie_port + i; + mv78xx0_setup_pcie_mem_win(win + i + 8, pp->res.start, + resource_size(&pp->res), + pp->maj, pp->min); - mv78xx0_setup_pcie_io_win(win++, pp->res[0].start, - resource_size(&pp->res[0]), + mv78xx0_setup_pcie_io_win(win + i, i * SZ_64K, SZ_64K, pp->maj, pp->min); - - mv78xx0_setup_pcie_mem_win(win++, pp->res[1].start, - resource_size(&pp->res[1]), - pp->maj, pp->min); } } @@ -156,8 +111,9 @@ static int __init mv78xx0_pcie_setup(int nr, struct pci_sys_data *sys) orion_pcie_set_local_bus_nr(pp->base, sys->busnr); orion_pcie_setup(pp->base); - pci_add_resource_offset(&sys->resources, &pp->res[0], sys->io_offset); - pci_add_resource_offset(&sys->resources, &pp->res[1], sys->mem_offset); + pci_ioremap_io(nr * SZ_64K, MV78XX0_PCIE_IO_PHYS_BASE(nr)); + + pci_add_resource_offset(&sys->resources, &pp->res, sys->mem_offset); return 1; } @@ -281,7 +237,7 @@ static void __init add_pcie_port(int maj, int min, unsigned long base) pp->root_bus_nr = -1; pp->base = (void __iomem *)base; spin_lock_init(&pp->conf_lock); - memset(pp->res, 0, sizeof(pp->res)); + memset(&pp->res, 0, sizeof(pp->res)); } else { printk("link down, ignoring\n"); } |