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2007-12-13[POWERPC] qe: add function qe_clock_source()Timur Tabi
Add function qe_clock_source() which takes a string containing the name of a QE clock source (as is typically found in device trees) and returns the matching enum qe_clock value. Update booting-without-of.txt to indicate that the UCC properties rx-clock and tx-clock are deprecated and replaced with rx-clock-name and tx-clock-name, which use strings instead of numbers to indicate QE clock sources. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-11[POWERPC] QE: change qe_setbrg() to take an enum qe_clock instead of an integerTimur Tabi
qe_setbrg() currently takes an integer to indicate the BRG number. Change that to take an enum qe_clock instead, since this enum is intended to represent clock sources. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-10-08[POWERPC] QE: pario - support for MPC85xx layoutAnton Vorontsov
8 bytes padding required to match MPC85xx registers layout. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Reviewed-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-10-08[POWERPC] QEIC: Implement pluggable handlers, fix MPIC cascadingAnton Vorontsov
set_irq_chained_handler overwrites MPIC's handle_irq function (handle_fasteoi_irq) thus MPIC never gets eoi event from the cascaded IRQ. This situation hangs MPIC on MPC8568E. To solve this problem efficiently, QEIC needs pluggable handlers, specific to the underlaying interrupt controller. Patch extends qe_ic_init() function to accept low and high interrupt handlers. To avoid #ifdefs, stack of interrupt handlers specified in the header file and functions are marked 'static inline', thus handlers are compiled-in only if actually used (in the board file). Another option would be to lookup for parent controller and automatically detect handlers (will waste text size because of never used handlers, so this option abolished). qe_ic_init() also changed in regard to support multiplexed high/low lines as found in MPC8568E-MDS, plus qe_ic_cascade_muxed_mpic() handler implemented appropriately. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-10-08[POWERPC] qe: miscellaneous code improvements and fixes to the QE libraryTimur Tabi
This patch makes numerous miscellaneous code improvements to the QE library. 1. Remove struct ucc_common and merge ucc_init_guemr() into ucc_set_type() (every caller of ucc_init_guemr() also calls ucc_set_type()). Modify all callers of ucc_set_type() accordingly. 2. Remove the unused enum ucc_pram_initial_offset. 3. Refactor qe_setbrg(), also implement work-around for errata QE_General4. 4. Several printk() calls were missing the terminating \n. 5. Add __iomem where needed, and change u16 to __be16 and u32 to __be32 where appropriate. 6. In ucc_slow_init() the RBASE and TBASE registers in the PRAM were programmed with the wrong value. 7. Add the protocol type to struct us_info and updated ucc_slow_init() to use it, instead of always programming QE_CR_PROTOCOL_UNSPECIFIED. 8. Rename ucc_slow_restart_x() to ucc_slow_restart_tx() 9. Add several macros in qe.h (mostly for slow UCC support, but also to standardize some naming convention) and remove several unused macros. 10. Update ucc_geth.c to use the new macros. 11. Add ucc_slow_info.protocol to specify which QE_CR_PROTOCOL_xxx protcol to use when initializing the UCC in ucc_slow_init(). 12. Rename ucc_slow_pram.rfcr to rbmr and ucc_slow_pram.tfcr to tbmr, since these are the real names of the registers. 13. Use the setbits, clrbits, and clrsetbits where appropriate. 14. Refactor ucc_set_qe_mux_rxtx(). 15. Remove all instances of 'volatile'. 16. Simplify get_cmxucr_reg(); 17. Replace qe_mux.cmxucrX with qe_mux.cmxucr[]. 18. Updated struct ucc_geth because struct ucc_fast is not padded any more. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-14[POWERPC] Add an optional device_node pointer to the irq_hostMichael Ellerman
The majority of irq_host implementations (3 out of 4) are associated with a device_node, and need to stash it somewhere. Rather than having it somewhere different for each host, add an optional device_node pointer to the irq_host structure. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-03[POWERPC] qe_lib: export symbols for QE driver to compile as moduleLi Yang
Export symbols of qe_lib to be used by QE driver. Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Selvamuthukumar V <vsmkumar.84@gmail.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-05-23[POWERPC] QE: fix Kconfig 'select' warning with UCC_FASTTimur Tabi
The UCC_GETH Kconfig option in drivers/net/Kconfig had a line to select the UCC_FAST option is arch/powerpc/sysdev/qe_lib/Kconfig, which is only used on PowerPC builds. On other architectures, this would generated a warning. The fix is to have UCC_FAST depend on UCC_GETH. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-05-09[POWERPC] Change rheap functions to use ulongs instead of pointersTimur Tabi
The rheap allocation functions return a pointer, but the actual value is based on how the heap was initialized, and so it can be anything, e.g. an offset into a buffer. A ulong is a better representation of the value returned by the allocation functions. This patch changes all of the relevant rheap functions to use a unsigned long integers instead of a pointer. In case of an error, the value returned is a negative error code that has been cast to an unsigned long. The caller can use the IS_ERR_VALUE() macro to check for this. All code which calls the rheap functions is updated accordingly. Macros IS_MURAM_ERR() and IS_DPERR(), have been deleted in favor of IS_ERR_VALUE(). Also added error checking to rh_attach_region(). Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-04-30Merge branch 'for-2.6.22' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'for-2.6.22' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (255 commits) [POWERPC] Remove dev_dbg redefinition in drivers/ps3/vuart.c [POWERPC] remove kernel module option for booke wdt [POWERPC] Avoid putting cpu node twice [POWERPC] Spinlock initializer cleanup [POWERPC] ppc4xx_sgdma needs dma-mapping.h [POWERPC] arch/powerpc/sysdev/timer.c build fix [POWERPC] get_property cleanups [POWERPC] Remove the unused HTDMSOUND driver [POWERPC] cell: cbe_cpufreq cleanup and crash fix [POWERPC] Declare enable_kernel_spe in a header [POWERPC] Add dt_xlate_addr() to bootwrapper [POWERPC] bootwrapper: CONFIG_ -> CONFIG_DEVICE_TREE [POWERPC] Don't define a custom bd_t for Xilixn Virtex based boards. [POWERPC] Add sane defaults for Xilinx EDK generated xparameters files [POWERPC] Add uartlite boot console driver for the zImage wrapper [POWERPC] Stop using ppc_sys for Xilinx Virtex boards [POWERPC] New registration for common Xilinx Virtex ppc405 platform devices [POWERPC] Merge common virtex header files [POWERPC] Rework Kconfig dependancies for Xilinx Virtex ppc405 platform [POWERPC] Clean up cpufreq Kconfig dependencies ...
2007-04-28ucc_geth: Implement Transmit on Demand supportMichael Reiss
Transmit on Demand: Fix spelling in config option, and make it actually enable TOD. Signed-off-by: Michael Reiss <michael.f.reiss@freescale.com> Signed-off-by: Michael Barkowski <michael.barkowski@freescale.com> Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-13[POWERPC] Rename get_property to of_get_property: arch/powerpcStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-04-13Merge branch 'linux-2.6' into for-2.6.22Paul Mackerras
2007-03-29[POWERPC] qe: Fix QUICC Engine SDMA setup errorsChuck Meade
Correct the alignment of the internal buffer used by the QUICC Engine SDMA controller to 4Kbytes. Correct the shift direction in the logic that sets up the SDMR register for the QUICC Engine SDMA controller. Signed-off-by: Chuck Meade <chuckmeade@mindspring.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-03-26[POWERPC] QE: fix invalid pointer usage in ucc_slow_init()Timur Tabi
In two places, ucc_slow_init() passes a physical address instead of the virtual address to functions that were expecting the latter, causing a kernel panic. us_info->regs contains the physical address of the UCC register set. The registers are ioremap'd to kernel space, and the virtual pointers are stored in us_regs. The code was using us_info->regs when it should have been using us_regs. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-03-26[POWERPC] QE: automatically select QE optionsTimur Tabi
Change the Kconfig files so that the Freescale QE options are automatically selected if a QE device is selected. Previously, you'd need to manually select UCC_FAST if you want any "fast" UCC devices, such as Gigabit Ethernet. Now, the QE Gigabit Ethernet option is always available if the device has a QE, and UCC_FAST is automatically enabled. A side-effect is that the "QE Options" menu no longer exists. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-17[POWERPC] QE: clean up ucc_slow.c and ucc_fast.cTimur Tabi
Refactored and cleaned up ucc_fast.c and ucc_slow.c so that the two files look more alike and are easier to read. Removed uccf_printk() and related functions, because they were just front-ends to printk(). Fixed some spacing and tabbing issues. Minor optimizations of some code. Changed the type of some variables to their proper type (mostly buffer descriptors). Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-08[POWERPC] QE: Rename ucc_slow_info.us_regs to ucc_slow_info.regsTimur Tabi
Rename the 'us_regs' field of the ucc_slow_info structure in ucc_slow.h to just 'regs'. The equivalent field in the ucc_fast_info structure is also called 'regs', so this patch makes them comparable, and makes the code a little easier to read, because there already is a 'us_regs' in another ucc_slow structure. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-01-26[POWERPC] Remove fastcall function attributeKumar Gala
fastcall is an x86 specific function attribute and has no business in ppc code Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-01-24[POWERPC] arch/powerpc/sysdev/qe_lib of_node_get cleanupMariusz Kozlowski
No need for ?: as of_node_get() can handle NULL argument. Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> arch/powerpc/sysdev/qe_lib/qe_ic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-08[POWERPC] qe_ic: Do a sync when masking interruptsScott Wood
This patch causes a sync do be done after masking a QE interrupt, to ensure that the masking has completed before interrupts are enabled. This allows the masking of the cascade IRQ to be removed without causing spurious interrupts. The mask_and_ack function is also removed and set to the mask function, as the two are identical. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-04[POWERPC] Replace kmalloc+memset with kzallocYan Burman
Replace kmalloc+memset with kzalloc. Signed-off-by: Yan Burman <burman.yan@gmail.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-04Merge branch 'linux-2.6' into for-linusPaul Mackerras
2006-11-13[PATCH] Optimize qe_brg struct to use an arrayTimur Tabi
The qe_brg structure manually defined each of the 16 BRG registers, which made any code that used them cumbersome. This patch replaces the fields with a single 16-element array. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-11-01[POWERPC] qe_lib: qe_issue_cmd writes wrong value to CECDRTimur Tabi
Changed qe_issue_cmd() to write cmd_input to the CECDR unmodified. It was treating cmd_input as a virtual address and tried to convert it to a physical address. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-25[POWERPC] Fix the UCC rx/tx clock of QELiu Dave-r63238
MPC8323EMDS board ethernet interface with RMII uses the CLK16 divisor for the rx and tx clock, but the ucc_set_qe_mux_rxtx() function doesn't handle the CLK16 setting of the CMXUCR3 and CMXUCR4 registers. This fixes it. Signed-off-by: Dave Liu <daveliu@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-23[POWERPC] Fix spelling errors in ucc_fast.c and ucc_slow.cTimur Tabi
In ucc_fast.c and ucc_slow.c, "illegal" is twice spelled "illagal". Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-09[HEADERS] Put linux/config.h out of its misery.Dave Jones
Signed-off-by: Dave Jones <davej@redhat.com>
2006-10-07[POWERPC] Fix up after irq changesOlaf Hering
Remove struct pt_regs * from all handlers. Also remove the regs argument from get_irq() functions. Compile tested with arch/powerpc/config/* and arch/ppc/configs/prep_defconfig Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-05[PATCH] powerpc: irq change build breaksOlof Johansson
Fix up some of the buildbreaks from the irq handler changes. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04[POWERPC] Add QUICC Engine (QE) infrastructureLi Yang
Add QUICC Engine (QE) configuration, header files, and QE management and library code that are used by QE devices drivers. Includes Leo's modifications up to, and including, the platform_device to of_device adaptation: "The series of patches add generic QE infrastructure called qe_lib, and MPC8360EMDS board support. Qe_lib is used by QE device drivers such as ucc_geth driver. This version updates QE interrupt controller to use new irq mapping mechanism, addresses all the comments received with last submission and includes some style fixes. v2: Change to use device tree for BCSR and MURAM; Remove I/O port interrupt handling code as it is not generic enough. v3: Address comments from Kumar; Update definition of several device tree nodes; Copyright style change." In addition, the following changes have been made: o removed typedefs o uint -> u32 conversions o removed following defines: QE_SIZEOF_BD, BD_BUFFER_ARG, BD_BUFFER_CLEAR, BD_BUFFER, BD_STATUS_AND_LENGTH_SET, BD_STATUS_AND_LENGTH, and BD_BUFFER_SET because they hid sizeof/in_be32/out_be32 operations from the reader. o fixed qe_snums_init() serial num assignment to use a const array o made CONFIG_UCC_FAST select UCC_SLOW o reduced NR_QE_IC_INTS from 128 to 64 o remove _IO_BASE, etc. defines (not used) o removed irrelevant comments, added others to resemble removed BD_ defines o realigned struct definitions in headers o various other style fixes including things like pinMask -> pin_mask o fixed a ton of whitespace issues o marked ioregs as __be32/__be16 o removed platform_device code and redundant get_qe_base() o removed redundant comments o added cpu_relax() to qe_reset o uncasted all get_property() assignments o eliminated unneeded casts o eliminated immrbar_phys_to_virt (not used) Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Shlomi Gridish <gridish@freescale.com> Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>