Thread (8 messages) flat view 8 messages, 4 authors, 2021-06-14

Re: [PATCH] arm64: dts: ti: k3-am64-main: Add SYSFW reserved ranges in OCRAM

From: Vignesh Raghavendra <vigneshr@ti.com>
Date: 2021-06-11 18:29:25
Also in: linux-arm-kernel, lkml


On 6/9/21 8:56 PM, Lokesh Vutla wrote:

On 09/06/21 7:36 pm, Vignesh Raghavendra wrote:
quoted
Last 256K of OCRAM (256K@0x701c0000) is reserved for SYSFW usage. Hence
add an entry in DT so that its not used for generic pool memory
allocation.

Without this certain drivers using SRAM as generic shared memory pool
may end up being allocated memory from this range and will lead to boot
time crash when the reserved range is accessed (due to firewall
violation).

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
You might want to re-base on top of Aswath's patch updating ATF address. Otherwise:

Reviewed-by: Lokesh Vutla <redacted>
Actually, this patch should go in before Aswath's patch as moving ATF
location around exposed issue of drivers getting memory allocations
overlapping SYSFW reserved ranges

Regards
Vignesh
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