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* powerpc: Remove __ilog2_u64 and ffs4 from bitopsFabio Estevam2015-11-05-0/+2
| | | | | | | | | | | | | Remove __ilog2_u64 and ffs4 from powerpc bitops to align with the kernel implementation. Use the generic __ffs64 instead of a custom powerpc implementation. Cc: York Sun <yorksun@freescale.com> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Jagan Teki <jteki@openedev.com>
* powerpc/mpc85xx: Fix DDR TLB mapping leftoverYork Sun2014-12-15-4/+8
| | | | | | | | | | Commit f29f804a93e87c17670607641d120f431a3b0633 generalized the TLB mapping function, but made the DDR mapping leftover size to zero, causing the message not printed. Signed-off-by: York Sun <yorksun@freescale.com> CC: Alexander Graf <agraf@suse.de> CC: Scott Wood <scottwood@freescale.com>
* linux/kernel.h: sync min, max, min3, max3 macros with LinuxMasahiro Yamada2014-11-23-1/+1
| | | | | | | | | | | | | | | | | | | | U-Boot has never cared about the type when we get max/min of two values, but Linux Kernel does. This commit gets min, max, min3, max3 macros synced with the kernel introducing type checks. Many of references of those macros must be fixed to suppress warnings. We have two options: - Use min, max, min3, max3 only when the arguments have the same type (or add casts to the arguments) - Use min_t/max_t instead with the appropriate type for the first argument Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Pavel Machek <pavel@denx.de> Acked-by: Lukasz Majewski <l.majewski@samsung.com> Tested-by: Lukasz Majewski <l.majewski@samsung.com> [trini: Fixup arch/blackfin/lib/string.c] Signed-off-by: Tom Rini <trini@ti.com>
* PPC 85xx: Add qemu-ppce500 machineAlexander Graf2014-04-22-1/+1
| | | | | | | | | | | | | | | | For KVM we have a special PV machine type called "ppce500". This machine is inspired by the MPC8544DS board, but implements a lot less features than that one. It also provides more PCI slots and is supposed to be enumerated by device tree only. This patch adds support for the generic ppce500 machine and tries to rely solely on device tree for device enumeration. Signed-off-by: Alexander Graf <agraf@suse.de> Acked-by: Scott Wood <scottwood@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
* PPC: 85xx: Generalize DDR TLB mapping functionAlexander Graf2014-04-22-15/+32
| | | | | | | | | | The DDR mapping function really is just a generic virtual -> physical mapping function. Generalize it so it can support any virtual starting offset and IO maps just the same. Signed-off-by: Alexander Graf <agraf@suse.de> Acked-by: Scott Wood <scottwood@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
* powerpc: deleted unused symbol CONFIG_SPL_NAND_MINIMAL and enabled some ↵Ying Zhang2013-08-20-1/+2
| | | | | | | | | | | functionality for common SPL 1. The symbol CONFIG_SPL_NAND_MINIMAL is unused, so deleted it. 2. Some functions were unused in the minimal SPL, but it is useful in the common SPL. So, enabled some functionality for common SPL. Signed-off-by: Ying Zhang <b40530@freescale.com> Acked-by: York Sun <yorksun@freescale.com>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-17/+1
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* ppc: Move used_tlb_cams to arch_global_dataSimon Glass2013-02-04-4/+4
| | | | | | Move this field into arch_global_data and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org>
* powerpc/mpc85xx: add support for MMUv2 page sizesScott Wood2013-01-30-5/+14
| | | | | | | | e6500 implements MMUv2 and supports power-of-2 page sizes rather than power-of-4. Add support for such pages. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
* spl/85xx: new SPL supportScott Wood2012-11-26-2/+2
| | | | | | | | | | | | | | | | Update CONFIG_RAMBOOT and CONFIG_NAND_SPL references to accept CONFIG_SPL and CONFIG_SPL_BUILD, respectively. CONFIG_NAND_SPL can be removed once the last mpc85xx nand_spl target is gone. CONFIG_RAMBOOT will need to remain for other use cases, but it doesn't seem right to overload it for meaning SPL as well as nand_spl does. Even if it's somewhat appropriate for the main u-boot, the SPL itself isn't (necessarily) ramboot, and we don't have separate configs for SPL and main u-boot. It was also inconsistent, as other platforms such as mpc83xx didn't use CONFIG_RAMBOOT in this way. Signed-off-by: Scott Wood <scottwood@freescale.com> Cc: Andy Fleming <afleming@freescale.com>
* powerpc/mpc85xx: Rewrite spin table to comply with ePAPR v1.1York Sun2012-10-22-1/+1
| | | | | | | | | | | | Move spin table to cached memory to comply with ePAPR v1.1. Load R3 with 64-bit value if CONFIG_SYS_PPC64 is defined. 'M' bit is set for DDR TLB to maintain cache coherence. See details in doc/README.mpc85xx-spin-table. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
* arch/powerpc/cpu/mpc85xx/tlb.c: Fix GCC 4.6 build warningKumar Gala2011-11-11-3/+2
| | | | | | | | | Fix: tlb.c: In function 'disable_tlb': tlb.c:175:34: warning: variable '_mas7' set but not used [-Wunused-but-set-variable] Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/85xx: Add support for Book-E MMU Arch v2.0Kumar Gala2011-11-08-4/+8
| | | | | | | | | | | | A few of the config registers changed definition between MMU v1.0 and MMUv2.0. The new e6500 core from Freescale implements v2.0 of the architecture. Specifically, how we determine the size of TLB entries we support in the variable size (or TLBCAM/TLB1) array is specified in a new register (TLBnPS - TLB n Page size) instead of via TLBnCFG. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/mpc85xx: Add clear_ddr_tlbs functionBecky Bruce2011-07-22-0/+29
| | | | | | | | | | | This is useful when we just want to wipe out the TLBs. There's currently a function that resets the ddr tlbs to a different value; it is changed to utilize this function. The new function can be used in conjunction with setup_ddr_tlbs() for a board to temporarily map/unmap the DDR address range as needed. Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/85xx: Don't build read_tlbcam_entry for CONFIG_NAND_SPLKumar Gala2011-04-04-2/+2
| | | | | | Slim down NAND SPL build a bit as we don't need read_tlbcam_entry. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* mpc85xx/tlb.c: Allow platforms to specify wimge bitsBecky Bruce2011-01-14-1/+5
| | | | | | | | | | | | | Some platforms might want to override the default wimge=0 for DDR. Add CONFIG_SYS_PPC_DDR_WIMGE for those platforms to use. This will initially only be used by TQM85xx, but could be useful for other boards or testing going forward. Note that the name of this define is not 85xx-specific. WIMGE is a fairly universal concept, so any ppc platforms that require different WIMGE settings for DDR can use the same #define. Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* Adding more control to physical address mappingYork Sun2010-10-20-6/+10
| | | | | | | | A worker function setup_ddr_tlbs_phys() is introduced to implement more control on physical address mapping. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* mpc85xx: Add print_tlbcam() functionBecky Bruce2010-07-16-0/+20
| | | | | | | This dumps out the contents of TLB1 on 85xx-based systems. Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* mpc85xx: tlb.c cleanupsBecky Bruce2010-07-16-26/+24
| | | | | | | | | | | Extract the operation to read a tlb into a function - we will need this later to print out the tlbs, and there's no point in duplicating the code. Create a TSIZE_TO_BYTES macro to deal with the conversion from the MAS field to an actual size instead of duplicating this in code. There are a few misc other minor cleanups. Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* Move arch/ppc to arch/powerpcStefan Roese2010-04-21-0/+277
As discussed on the list, move "arch/ppc" to "arch/powerpc" to better match the Linux directory structure. Please note that this patch also changes the "ppc" target in MAKEALL to "powerpc" to match this new infrastructure. But "ppc" is kept as an alias for now, to not break compatibility with scripts using this name. Signed-off-by: Stefan Roese <sr@denx.de> Acked-by: Wolfgang Denk <wd@denx.de> Acked-by: Detlev Zundel <dzu@denx.de> Acked-by: Kim Phillips <kim.phillips@freescale.com> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Anatolij Gustschin <agust@denx.de>
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