Commit graph

7 commits

Author SHA1 Message Date
Dipen Dudhat
d789b5f5bc powerpc/85xx: Add support for Integrated Flash Controller (IFC)
The Integrated Flash Controller (IFC) is used to access the external
NAND Flash, NOR Flash, EPROM, SRAM and Generic ASIC memories.Four chip
selects are provided in IFC so that maximum of four Flash devices can be
hooked, but only one can be accessed at a given time.

Features supported by IFC are,
        - Functional muxing of pins between NAND, NOR and GPCM
        - Support memory banks of size 64KByte to 4 GBytes
        - Write protection capability (only for NAND and NOR)
        - Provision of Software Reset
        - Flexible Timing programmability for every chip select
        - NAND Machine
                - x8/ x16 NAND Flash Interface
                - SLC and MLC NAND Flash devices support with
                  configurable
                  page sizes of upto 4KB
                - Internal SRAM of 9KB which is directly mapped and
                  availble at
                  boot time for NAND Boot
                - Configurable block size
                - Boot chip select (CS0) available at system reset
        - NOR Machine
                - Data bus width of 8/16/32
                - Compatible with asynchronous NOR Flash
                - Directly memory mapped
                - Supports address data multiplexed (ADM) NOR device
                - Boot chip select (CS0) available at system reset
        - GPCM Machine (NORMAL GPCM Mode)
                - Support for x8/16/32 bit device
                - Compatible with general purpose addressable device
                  e.g. SRAM, ROM
                - External clock is supported with programmable division
                  ratio
        - GPCM Machine (Generic ASIC Mode)
                - Support for x8/16/32 bit device
                - Address and Data are shared on I/O bus
                - Following Address and Data sequences can be supported
                  on I/O bus
                       - 32 bit I/O: AD
                       - 16 bit I/O: AADD
                       - 8 bit I/O : AAAADDDD
                - Configurable Even/Odd Parity on Address/Data bus
                  supported

Signed-off-by: Dipen Dudhat <Dipen.Dudhat@freescale.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-04-04 09:24:40 -05:00
Kumar Gala
a09b9b68d4 powerpc/8xxx: Refactor SRIO initialization into common code
Moved the SRIO init out of corenet_ds and into common code for
8xxx/QorIQ processors that have SRIO.  We mimic what we do with PCIe
controllers for SRIO.

We utilize the fact that SRIO is over serdes to determine if its
configured or not and thus can setup the LAWs needed for it dynamically.

We additionally update the device tree (to remove the SRIO nodes) if the
board doesn't have SRIO enabled.

Introduced the following standard defines for board config.h:

CONFIG_SYS_SRIO - Chip has SRIO or not
CONFIG_SRIO1 - Board has SRIO 1 port available
CONFIG_SRIO2 - Board has SRIO 2 port available

(where 'n' is the port #)
CONFIG_SYS_SRIOn_MEM_VIRT - virtual address in u-boot
CONFIG_SYS_SRIOn_MEM_PHYS - physical address (for law setup)
CONFIG_SYS_SRIOn_MEM_SIZE - size of window (for law setup)

[ These mimic what we have for PCI and PCIe controllers ]

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Wolfgang Denk <wd@denx.de>
2011-01-14 01:32:21 -06:00
Kumar Gala
5d27e02c04 powerpc/8xxx: Replace is_fsl_pci_cfg with is_serdes_configured
Now that we have serdes support for all 85xx/86xx/Pxxx chips we can
replace the is_fsl_pci_cfg() code with the is_serdes_configured().

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-01-14 01:32:19 -06:00
Sebastien Carlier
6d8962e814 Switch from archive libraries to partial linking
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 <sebastien.carlier@gmail.com>
2010-11-17 21:02:18 +01:00
Becky Bruce
f51cdaf191 83xx/85xx/86xx: LBC register cleanup
Currently, 83xx, 86xx, and 85xx have a lot of duplicated code
dedicated to defining and manipulating the LBC registers.  Merge
this into a single spot.

To do this, we have to decide on a common name for the data structure
that holds the lbc registers - it will now be known as fsl_lbc_t, and we
adopt a common name for the immap layouts that include the lbc - this was
previously known as either im_lbc or lbus; use the former.

In addition, create accessors for the BR/OR regs that use in/out_be32
and use those instead of the mismash of access methods currently in play.

I have done a successful ppc build all and tested a board or two from
each processor family.

Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-07-16 10:55:09 -05:00
Kim Phillips
5d0c3b57b2 fdt: move fsl specific code from common fdt area to mpc8xxx/fdt.c
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-07-16 10:55:07 -05:00
Stefan Roese
a47a12becf Move arch/ppc to arch/powerpc
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>
2010-04-21 23:42:38 +02:00
Renamed from arch/ppc/cpu/mpc8xxx/Makefile (Browse further)