From: Hiago De Franco hiago.franco@toradex.com
The current value of CONFIG_FASTBOOT_BUF_ADDR is incorrect for hardware with 512MB and 1GB of RAM. The RAM address ranges for these devices are:
- 512MB: - Start: 0x80000000 - End: 0xA0000000 - 1GB: - Start: 0x80000000 - End: 0xC0000000
The current buffer address makes fastboot downloads work only on hardware with 2GB of RAM.
To fix this issue: 1. Lower CONFIG_FASTBOOT_BUF_ADDR to 0x88200000. This makes the buffer to be equal ot CONFIG_SYS_LOAD_ADDR, which is a safe address to download files using fastboot.
2. Reduce the size of the download buffer to 128MB, avoiding overlaps with RAMDISK_ADDR_R. This is a good enough value for individual downloads.
These changes make fastboot downloads work with 512MB and 1GB devices.
Fixes: defe30a78b76 ("verdin-am62: add DFU, USB and UUU fastboot support") Signed-off-by: Hiago De Franco hiago.franco@toradex.com --- configs/verdin-am62_a53_defconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/configs/verdin-am62_a53_defconfig b/configs/verdin-am62_a53_defconfig index 49fb9790e295..fc9ffa0f392b 100644 --- a/configs/verdin-am62_a53_defconfig +++ b/configs/verdin-am62_a53_defconfig @@ -122,8 +122,8 @@ CONFIG_SYS_DFU_MAX_FILE_SIZE=0x800000 CONFIG_DMA_CHANNELS=y CONFIG_TI_K3_NAVSS_UDMA=y CONFIG_USB_FUNCTION_FASTBOOT=y -CONFIG_FASTBOOT_BUF_ADDR=0xC0000000 -CONFIG_FASTBOOT_BUF_SIZE=0x2F000000 +CONFIG_FASTBOOT_BUF_ADDR=0x88200000 +CONFIG_FASTBOOT_BUF_SIZE=0x8000000 CONFIG_FASTBOOT_UUU_SUPPORT=y CONFIG_TI_SCI_PROTOCOL=y CONFIG_GPIO_HOG=y