u-boot.git/drivers/pci, branch v2010.12

74xx_7xx: Cleanup for partial linking and --gc-sections

2010-11-27T22:35:12Z

Signed-off-by: Wolfgang Denk Acked-by: Stefan Roese

Switch from archive libraries to partial linking

2010-11-17T20:02:18Z

Before this commit, weak symbols were not overridden by non-weak symbols found in archive libraries when linking with recent versions of binutils. As stated in the System V ABI, "the link editor does not extract archive members to resolve undefined weak symbols". This commit changes all Makefiles to use partial linking (ld -r) instead of creating library archives, which forces all symbols to participate in linking, allowing non-weak symbols to override weak symbols as intended. This approach is also used by Linux, from which the gmake function cmd_link_o_target (defined in config.mk and used in all Makefiles) is inspired. The name of each former library archive is preserved except for extensions which change from ".a" to ".o". This commit updates references accordingly where needed, in particular in some linker scripts. This commit reveals board configurations that exclude some features but include source files that depend these disabled features in the build, resulting in undefined symbols. Known such cases include: - disabling CMD_NET but not CMD_NFS; - enabling CONFIG_OF_LIBFDT but not CONFIG_QE. Signed-off-by: Sebastien Carlier

pci: Use intelligent indentation for CONFIG_PCI_SCAN_SHOW

2010-11-14T22:46:48Z

When CONFIG_PCI_SCAN_SHOW is defined U-Boot prints out PCI devices as they are found during bootup, eg: PCIE1: connected as Root Complex 01:00.0 - 10b5:8518 - Bridge device 02:01.0 - 10b5:8518 - Bridge device 03:00.0 - 10b5:8112 - Bridge device 04:01.0 - 8086:1010 - Network controller 04:01.1 - 8086:1010 - Network controller 02:02.0 - 10b5:8518 - Bridge device 02:03.0 - 10b5:8518 - Bridge device 06:00.0 - 10b5:8518 - Bridge device 07:00.0 - 10b5:8518 - Bridge device 08:00.0 - 1957:0040 - Processor 07:01.0 - 10b5:8518 - Bridge device 09:00.0 - 10b5:8112 - Bridge device 07:02.0 - 10b5:8518 - Bridge device PCIE1: Bus 00 - 0b PCIE2: connected as Root Complex 0d:00.0 - 1957:0040 - Processor PCIE2: Bus 0c - 0d This information is useful, but its difficult to determine the PCI bus topology. To things clearer, we can use indention to make it more obvious how the PCI bus is organized. For the example above, the updated output with this change is: PCIE1: connected as Root Complex 01:00.0 - 10b5:8518 - Bridge device 02:01.0 - 10b5:8518 - Bridge device 03:00.0 - 10b5:8112 - Bridge device 04:01.0 - 8086:1010 - Network controller 04:01.1 - 8086:1010 - Network controller 02:02.0 - 10b5:8518 - Bridge device 02:03.0 - 10b5:8518 - Bridge device 06:00.0 - 10b5:8518 - Bridge device 07:00.0 - 10b5:8518 - Bridge device 08:00.0 - 1957:0040 - Processor 07:01.0 - 10b5:8518 - Bridge device 09:00.0 - 10b5:8112 - Bridge device 07:02.0 - 10b5:8518 - Bridge device PCIE1: Bus 00 - 0b PCIE2: connected as Root Complex 0d:00.0 - 1957:0040 - Processor PCIE2: Bus 0c - 0d In the examples above, an MPC8640 is connected to a PEX8518 PCIe switch (01:00 and 02:0x), which is connected to another PEX8518 PCIe switch (06:00 and 07:0x), which then connects to a MPC8572 processor (08:00). Also, the MPC8640's PEX8518 PCIe switch is connected to a PCI ethernet card (04:01) via a PEX8112 PCIe-to-PCI bridge (03:00). Signed-off-by: Peter Tyser

pci: Fix ordering of devices when CONFIG_PCI_SCAN_SHOW

2010-11-14T22:46:47Z

Move the printing of PCI device information to before the PCI device is configured. This prevents the case where recursive scanning results in the deepest devices being printed first. This change also makes PCI lockups during enumeration easier to diagnose since the device that is being configured is printed out prior to configuration. Previously, it was not possible to determine which device caused the PCI lockup. Original example: PCIE1: connected as Root Complex 04:01.0 - 8086:1010 - Network controller 04:01.1 - 8086:1010 - Network controller 03:00.0 - 10b5:8112 - Bridge device 02:01.0 - 10b5:8518 - Bridge device 02:02.0 - 10b5:8518 - Bridge device 08:00.0 - 1957:0040 - Processor 07:00.0 - 10b5:8518 - Bridge device 09:00.0 - 10b5:8112 - Bridge device 07:01.0 - 10b5:8518 - Bridge device 07:02.0 - 10b5:8518 - Bridge device 06:00.0 - 10b5:8518 - Bridge device 02:03.0 - 10b5:8518 - Bridge device 01:00.0 - 10b5:8518 - Bridge device PCIE1: Bus 00 - 0b Updated example: PCIE1: connected as Root Complex 01:00.0 - 10b5:8518 - Bridge device 02:01.0 - 10b5:8518 - Bridge device 03:00.0 - 10b5:8112 - Bridge device 04:01.0 - 8086:1010 - Network controller 04:01.1 - 8086:1010 - Network controller 02:02.0 - 10b5:8518 - Bridge device 02:03.0 - 10b5:8518 - Bridge device 06:00.0 - 10b5:8518 - Bridge device 07:00.0 - 10b5:8518 - Bridge device 08:00.0 - 1957:0040 - Processor 07:01.0 - 10b5:8518 - Bridge device 09:00.0 - 10b5:8112 - Bridge device 07:02.0 - 10b5:8518 - Bridge device PCIE1: Bus 00 - 0b Signed-off-by: Peter Tyser

pci: Clean up PCI info when CONFIG_PCI_SCAN_SHOW

2010-11-14T22:46:46Z

This change does the following: - Removes the printing of the PCI interrupt line value. This is normally set to 0 by U-Boot on bootup and is rarely used during everyday operation. - Prints out the PCI function number of a device. Previously a device with multiple functions would be printed identically 2 times, which is generally confusing. For example, on an Intel 2 port gigabit Ethernet card the following was displayed: ... 04 01 8086 1010 0200 00 04 01 8086 1010 0200 00 ... - Prints a text description of each device's PCI class instead of the raw PCI class code. The textual description makes it much easier to determine what devices are installed on a PCI bus. - Changes the general formatting of the PCI device output. Previous output: PCIE1: connected as Root Complex 04 01 8086 1010 0200 00 04 01 8086 1010 0200 00 03 00 10b5 8112 0604 00 02 01 10b5 8518 0604 00 02 02 10b5 8518 0604 00 08 00 1957 0040 0b20 00 07 00 10b5 8518 0604 00 09 00 10b5 8112 0604 00 07 01 10b5 8518 0604 00 07 02 10b5 8518 0604 00 06 00 10b5 8518 0604 00 02 03 10b5 8518 0604 00 01 00 10b5 8518 0604 00 PCIE1: Bus 00 - 0b PCIE2: connected as Root Complex 0d 00 1957 0040 0b20 00 PCIE2: Bus 0c - 0d Updated output: PCIE1: connected as Root Complex 04:01.0 - 8086:1010 - Network controller 04:01.1 - 8086:1010 - Network controller 03:00.0 - 10b5:8112 - Bridge device 02:01.0 - 10b5:8518 - Bridge device 02:02.0 - 10b5:8518 - Bridge device 08:00.0 - 1957:0040 - Processor 07:00.0 - 10b5:8518 - Bridge device 09:00.0 - 10b5:8112 - Bridge device 07:01.0 - 10b5:8518 - Bridge device 07:02.0 - 10b5:8518 - Bridge device 06:00.0 - 10b5:8518 - Bridge device 02:03.0 - 10b5:8518 - Bridge device 01:00.0 - 10b5:8518 - Bridge device PCIE1: Bus 00 - 0b PCIE2: connected as Root Complex 0d:00.0 - 1957:0040 - Processor PCIE2: Bus 0c - 0d Signed-off-by: Peter Tyser

fsl_pci_init: Quiet scanning printf()

2010-11-14T22:46:45Z

The "Scanning PCI bus X" message doesn't provide any real useful information, so remove it. Original output: PCIE1: connected as Root Complex Scanning PCI bus 01 04 01 8086 1010 0200 00 04 01 8086 1010 0200 00 03 00 10b5 8112 0604 00 02 01 10b5 8518 0604 00 02 02 10b5 8518 0604 00 08 00 1957 0040 0b20 00 07 00 10b5 8518 0604 00 09 00 10b5 8112 0604 00 07 01 10b5 8518 0604 00 07 02 10b5 8518 0604 00 06 00 10b5 8518 0604 00 02 03 10b5 8518 0604 00 01 00 10b5 8518 0604 00 PCIE1: Bus 00 - 0b PCIE2: connected as Root Complex Scanning PCI bus 0d 0d 00 1957 0040 0b20 00 PCIE2: Bus 0c - 0d Updated output: PCIE1: connected as Root Complex 04 01 8086 1010 0200 00 04 01 8086 1010 0200 00 03 00 10b5 8112 0604 00 02 01 10b5 8518 0604 00 02 02 10b5 8518 0604 00 08 00 1957 0040 0b20 00 07 00 10b5 8518 0604 00 09 00 10b5 8112 0604 00 07 01 10b5 8518 0604 00 07 02 10b5 8518 0604 00 06 00 10b5 8518 0604 00 02 03 10b5 8518 0604 00 01 00 10b5 8518 0604 00 PCIE1: Bus 00 - 0b PCIE2: connected as Root Complex 0d 00 1957 0040 0b20 00 PCIE2: Bus 0c - 0d Signed-off-by: Peter Tyser CC: galak@kernel.crashing.org

fsl: Clean up printing of PCI boot info

2010-11-14T22:46:42Z

Previously boards used a variety of indentations, newline styles, and colon styles for the PCI information that is printed on bootup. This patch unifies the style to look like: ... NAND: 1024 MiB PCIE1: connected as Root Complex Scanning PCI bus 01 04 01 8086 1010 0200 00 04 01 8086 1010 0200 00 03 00 10b5 8112 0604 00 02 01 10b5 8518 0604 00 02 02 10b5 8518 0604 00 08 00 1957 0040 0b20 00 07 00 10b5 8518 0604 00 09 00 10b5 8112 0604 00 07 01 10b5 8518 0604 00 07 02 10b5 8518 0604 00 06 00 10b5 8518 0604 00 02 03 10b5 8518 0604 00 01 00 10b5 8518 0604 00 PCIE1: Bus 00 - 0b PCIE2: connected as Root Complex Scanning PCI bus 0d 0d 00 1957 0040 0b20 00 PCIE2: Bus 0c - 0d In: serial ... Signed-off-by: Peter Tyser CC: wd@denx.de CC: sr@denx.de CC: galak@kernel.crashing.org

fsl_pci_init: Make fsl_pci_init_port() PCI/PCIe aware

2010-11-14T22:45:57Z

Previously fsl_pci_init_port() always assumed that a port was a PCIe port and would incorrectly print messages for a PCI port such as the following on bootup: PCI1: 32 bit, 33 MHz, sync, host, arbiter Scanning PCI bus 00 PCIE1 on bus 00 - 00 This change corrects the output of fsl_pci_init_port(): PCI1: 32 bit, 33 MHz, sync, host, arbiter Scanning PCI bus 00 PCI1 on bus 00 - 00 Signed-off-by: Peter Tyser

pci: Add ability to re-enumerate PCI buses

2010-10-22T07:17:12Z

Add a new 'pci enum' command which re-enumerates the PCI buses. This command is enabled via the CONFIG_CMD_PCI_ENUM define and can be useful in boards with FPGAs connected via PCI/PCIe, boards that support PCI hot-plugging, or during PCI debug. Also enable the 'pci enum' command for X-ES's Freescale-based boards. Signed-off-by: John Schmoller Signed-off-by: Peter Tyser Acked-by: Kumar Gala Acked-by: Wolfgang Denk

powerpc/85xx & 86xx: Rework ft_fsl_pci_setup to not require aliases

2010-07-20T09:40:06Z

Previously we used an alias the pci node to determine which node to fixup or delete. Now we use the new fdt_node_offset_by_compat_reg to find the node to update. Additionally, we replace the code in each board with a single macro call that makes assumes uniform naming and reduces duplication in this area. Signed-off-by: Kumar Gala