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arm: vf610twr: improve memory layout

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Currently, the device tree relocation is disabled, likely to
keep some DDR3 RAM at the end for Cortex-M4 firmwares. This
can be archived using bootm_size, which limits the image
processing range of the boot commands.

Move the device tree standard load address to a higher address
which aligns better with what we are doing on other boards.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
This commit is contained in:
Stefan Agner 2015-10-14 10:58:43 -07:00 • committed by Stefano Babic
parent d45fd018c8
commit cf04ad3219
1 changed files with 21 additions and 6 deletions
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27
include/configs/vf610twr.h
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@ -116,20 +116,37 @@
#define CONFIG_BOOTDELAY 3
#define CONFIG_LOADADDR 0x82000000
#define CONFIG_SYS_LOAD_ADDR 0x82000000
/* We boot from the gfxRAM area of the OCRAM. */
#define CONFIG_SYS_TEXT_BASE 0x3f408000
#define CONFIG_BOARD_SIZE_LIMIT 524288
/*
* We do have 128MB of memory on the Vybrid Tower board. Leave the last
* 16MB alone to avoid conflicts with Cortex-M4 firmwares running from
* DDR3. Hence, limit the memory range for image processing to 112MB
* using bootm_size. All of the following must be within this range.
* We have the default load at 32MB into DDR (for the kernel), FDT at
* 64MB and the ramdisk 512KB above that (allowing for hopefully never
* seen large trees). This allows a reasonable split between ramdisk
* and kernel size, where the ram disk can be a bit larger.
*/
#define MEM_LAYOUT_ENV_SETTINGS \
"bootm_size=0x07000000\0" \
"loadaddr=0x82000000\0" \
"kernel_addr_r=0x82000000\0" \
"fdt_addr=0x84000000\0" \
"fdt_addr_r=0x84000000\0" \
"rdaddr=0x84080000\0" \
"ramdisk_addr_r=0x84080000\0"
#define CONFIG_EXTRA_ENV_SETTINGS \
MEM_LAYOUT_ENV_SETTINGS \
"script=boot.scr\0" \
"image=zImage\0" \
"console=ttyLP1\0" \
"fdt_high=0xffffffff\0" \
"initrd_high=0xffffffff\0" \
"fdt_file=vf610-twr.dtb\0" \
"fdt_addr=0x81000000\0" \
"boot_fdt=try\0" \
"ip_dyn=yes\0" \
"mmcdev=" __stringify(CONFIG_SYS_MMC_ENV_DEV) "\0" \
@ -224,8 +241,6 @@
#define CONFIG_SYS_MEMTEST_START 0x80010000
#define CONFIG_SYS_MEMTEST_END 0x87C00000
#define CONFIG_SYS_LOAD_ADDR CONFIG_LOADADDR
/*
* Stack sizes
* The stack sizes are set up in start.S using the settings below