7 Jun
2021
7 Jun
'21
2:38 p.m.
On 6/7/21 2:05 PM, Frieder Schrempf wrote:
From: Frieder Schrempf frieder.schrempf@kontron.de
Some IPs have their accessible address space restricted by the interconnect. Let's make sure U-Boot only ever uses the space below the 4G address boundary (which is 3GiB big), even when the effective available memory is bigger.
We implement board_get_usable_ram_top() for all i.MX8M SoCs, as the whole family is affected by this.
Shouldn't only those specific IP drivers handle buffers in the 64bit space somehow ? E.g. using a bounce buffer ?