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| author | Stefan Agner <stefan@agner.ch> | 2015-10-14 10:58:43 -0700 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2015-10-15 11:22:07 +0200 |
| commit | cf04ad3219260c3c39ec3dbfe2427e3463e8dbd5 (patch) | |
| tree | 4e65b7987a548115b7fdd857b65aa68bbd4b8273 /include | |
| parent | d45fd018c8ed233f55c9b4e219d06c71abf9e299 (diff) | |
| download | u-boot-imx-cf04ad3219260c3c39ec3dbfe2427e3463e8dbd5.zip u-boot-imx-cf04ad3219260c3c39ec3dbfe2427e3463e8dbd5.tar.gz u-boot-imx-cf04ad3219260c3c39ec3dbfe2427e3463e8dbd5.tar.bz2 | |
arm: vf610twr: improve memory layout
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/configs/vf610twr.h | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/include/configs/vf610twr.h b/include/configs/vf610twr.h index 324ba8f..7f4260a 100644 --- a/include/configs/vf610twr.h +++ b/include/configs/vf610twr.h @@ -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 |