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u-boot/board/freescale/mpc8536ds/config.mk

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mpc85xx: Add support for the MPC8536DS reference board Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Srikanth Srinivasan <srikanth.srinivasan@freescale.com> Signed-off-by: Dejan Minic <minic@freescale.com> Signed-off-by: Jason Jin <Jason.jin@freescale.com> Signed-off-by: Dave Liu <daveliu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-07-25 18:31:05 +00:00
#
# Copyright 2008 Freescale Semiconductor.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
#
# mpc8536ds board
#
NAND boot: MPC8536DS support MPC8536E can support booting from NAND flash which uses the image u-boot-nand.bin. This image contains two parts: a 4K NAND loader and a main U-Boot image. The former is appended to the latter to produce u-boot-nand.bin. The 4K NAND loader includes the corresponding nand_spl directory, along with the code twisted by CONFIG_NAND_SPL. The main U-Boot image just like a general U-Boot image except the parts that included by CONFIG_SYS_RAMBOOT. When power on, eLBC will automatically load from bank 0 the 4K NAND loader into the FCM buffer RAM where CPU can execute the boot code directly. In the first stage, the NAND loader copies itself to RAM or L2SRAM to free up the FCM buffer RAM, then loads the main image from NAND flash to RAM or L2SRAM and boot from it. This patch implements the NAND loader to load the main image into L2SRAM, so the main image can configure the RAM by using SPD EEPROM. In the first stage, the NAND loader copies itself to the second to last 4K address space, and uses the last 4K address space as the initial RAM for stack. Obviously, the size of L2SRAM shouldn't be less than the size of the image used. If so, the workaround is to generate another image that includes the code to configure the RAM by SPD and load it to L2SRAM first, then relocate the main image to RAM to boot up. Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-09-23 07:20:37 +00:00
ifndef NAND_SPL
mkconfig: change CONFIG_MK_ prefix into plain CONFIG_ When planning for more generalization and Makefile cleanup it became obvious that the introduction of a separate CONFIG_MK_ name space for config options that were set through scripting in the Makefile was not a good idea. Originally the idea was to provide a script-free approach to supply configuration options - there was no real need for a separate name space. But when we now convert the existing Makefile entries to make use of this approach, it would mean that we have to touch a large number of board config files and add #ifdef / #define sequences to "convert" from the CONFIG_MK_ to the CONFIG_ name space. It seems much cleaner to get rid of this somewhat arbitrary _MK string now for the few boards that actually use it. Signed-off-by: Wolfgang Denk <wd@denx.de> Acked-by: Mike Frysinger <vapier@gentoo.org>
2010-10-04 17:58:00 +00:00
ifeq ($(CONFIG_NAND), y)
Create CPUDIR variable The CPUDIR variable points to the location of a target's CPU directory. Currently, it is set to cpu/$CPU. However, using $CPUDIR will allow for more flexibility in the future. It lays the groundwork for reorganizing U-Boot's directory structure to support a layout such as: arch/$ARCH/cpu/$CPU/* (architecture with multiple CPU types) arch/$ARCH/cpu/* (architecture with one CPU type) Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-04-13 03:28:02 +00:00
LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-nand.lds
NAND boot: MPC8536DS support MPC8536E can support booting from NAND flash which uses the image u-boot-nand.bin. This image contains two parts: a 4K NAND loader and a main U-Boot image. The former is appended to the latter to produce u-boot-nand.bin. The 4K NAND loader includes the corresponding nand_spl directory, along with the code twisted by CONFIG_NAND_SPL. The main U-Boot image just like a general U-Boot image except the parts that included by CONFIG_SYS_RAMBOOT. When power on, eLBC will automatically load from bank 0 the 4K NAND loader into the FCM buffer RAM where CPU can execute the boot code directly. In the first stage, the NAND loader copies itself to RAM or L2SRAM to free up the FCM buffer RAM, then loads the main image from NAND flash to RAM or L2SRAM and boot from it. This patch implements the NAND loader to load the main image into L2SRAM, so the main image can configure the RAM by using SPD EEPROM. In the first stage, the NAND loader copies itself to the second to last 4K address space, and uses the last 4K address space as the initial RAM for stack. Obviously, the size of L2SRAM shouldn't be less than the size of the image used. If so, the workaround is to generate another image that includes the code to configure the RAM by SPD and load it to L2SRAM first, then relocate the main image to RAM to boot up. Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-09-23 07:20:37 +00:00
endif
endif
mkconfig: change CONFIG_MK_ prefix into plain CONFIG_ When planning for more generalization and Makefile cleanup it became obvious that the introduction of a separate CONFIG_MK_ name space for config options that were set through scripting in the Makefile was not a good idea. Originally the idea was to provide a script-free approach to supply configuration options - there was no real need for a separate name space. But when we now convert the existing Makefile entries to make use of this approach, it would mean that we have to touch a large number of board config files and add #ifdef / #define sequences to "convert" from the CONFIG_MK_ to the CONFIG_ name space. It seems much cleaner to get rid of this somewhat arbitrary _MK string now for the few boards that actually use it. Signed-off-by: Wolfgang Denk <wd@denx.de> Acked-by: Mike Frysinger <vapier@gentoo.org>
2010-10-04 17:58:00 +00:00
ifeq ($(CONFIG_SDCARD), y)
On-chip ROM boot: MPC8536DS support The MPC8536E is capable of booting from the on-chip ROM - boot from eSDHC and boot from eSPI. When power on, the porcessor excutes the ROM code to initialize the eSPI/eSDHC controller, and loads the mian U-Boot image from the memory device that interfaced to the controller, such as the SDCard or SPI EEPROM, to the target memory, e.g. SDRAM or L2SRAM, then boot from it. The memory device should contain a specific data structure with control word and config word at the fixed address. The config word direct the process how to config the memory device, and the control word direct the processor where to find the image on the memory device, or where copy the main image to. The user can use any method to store the data structure to the memory device, only if store it on the assigned address. The on-chip ROM code will map the whole 4GB address space by setting entry0 in the TLB1, so the main image need to switch to Address space 1 to disable this mapping and map the address space again. This patch implements loading the mian U-Boot image into L2SRAM, so the image can configure the system memory by using SPD EEPROM. Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-09-23 07:20:38 +00:00
RESET_VECTOR_ADDRESS = 0xf8fffffc
endif
mkconfig: change CONFIG_MK_ prefix into plain CONFIG_ When planning for more generalization and Makefile cleanup it became obvious that the introduction of a separate CONFIG_MK_ name space for config options that were set through scripting in the Makefile was not a good idea. Originally the idea was to provide a script-free approach to supply configuration options - there was no real need for a separate name space. But when we now convert the existing Makefile entries to make use of this approach, it would mean that we have to touch a large number of board config files and add #ifdef / #define sequences to "convert" from the CONFIG_MK_ to the CONFIG_ name space. It seems much cleaner to get rid of this somewhat arbitrary _MK string now for the few boards that actually use it. Signed-off-by: Wolfgang Denk <wd@denx.de> Acked-by: Mike Frysinger <vapier@gentoo.org>
2010-10-04 17:58:00 +00:00
ifeq ($(CONFIG_SPIFLASH), y)
On-chip ROM boot: MPC8536DS support The MPC8536E is capable of booting from the on-chip ROM - boot from eSDHC and boot from eSPI. When power on, the porcessor excutes the ROM code to initialize the eSPI/eSDHC controller, and loads the mian U-Boot image from the memory device that interfaced to the controller, such as the SDCard or SPI EEPROM, to the target memory, e.g. SDRAM or L2SRAM, then boot from it. The memory device should contain a specific data structure with control word and config word at the fixed address. The config word direct the process how to config the memory device, and the control word direct the processor where to find the image on the memory device, or where copy the main image to. The user can use any method to store the data structure to the memory device, only if store it on the assigned address. The on-chip ROM code will map the whole 4GB address space by setting entry0 in the TLB1, so the main image need to switch to Address space 1 to disable this mapping and map the address space again. This patch implements loading the mian U-Boot image into L2SRAM, so the image can configure the system memory by using SPD EEPROM. Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-09-23 07:20:38 +00:00
RESET_VECTOR_ADDRESS = 0xf8fffffc
endif
ifndef RESET_VECTOR_ADDRESS
ppc/85xx: Introduce RESET_VECTOR_ADDRESS to handle non-standard link address Some board ports place TEXT_BASE at a location that would cause the RESET_VECTOR_ADDRESS not to be at 0xfffffffc when we link. By default we assume RESET_VECTOR_ADDRESS will be 0xfffffffc if the board doesn't explicitly set it. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Wolfgang Denk <wd@denx.de>
2009-09-09 16:40:41 +00:00
RESET_VECTOR_ADDRESS = 0xeffffffc
On-chip ROM boot: MPC8536DS support The MPC8536E is capable of booting from the on-chip ROM - boot from eSDHC and boot from eSPI. When power on, the porcessor excutes the ROM code to initialize the eSPI/eSDHC controller, and loads the mian U-Boot image from the memory device that interfaced to the controller, such as the SDCard or SPI EEPROM, to the target memory, e.g. SDRAM or L2SRAM, then boot from it. The memory device should contain a specific data structure with control word and config word at the fixed address. The config word direct the process how to config the memory device, and the control word direct the processor where to find the image on the memory device, or where copy the main image to. The user can use any method to store the data structure to the memory device, only if store it on the assigned address. The on-chip ROM code will map the whole 4GB address space by setting entry0 in the TLB1, so the main image need to switch to Address space 1 to disable this mapping and map the address space again. This patch implements loading the mian U-Boot image into L2SRAM, so the image can configure the system memory by using SPD EEPROM. Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-09-23 07:20:38 +00:00
endif
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