From: Hiago De Franco <hiago.fra...@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.fra...@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
--
2.39.5
