From: Tom Rini <trini@konsulko.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v2 1/7] arm: K3: Avoid use of MCU_PSRAM0 before SYSFW is loaded
Date: Thu, 21 Feb 2019 18:10:40 -0500 [thread overview]
Message-ID: <20190221231040.GH12379@bill-the-cat> (raw)
In-Reply-To: <20190221223512.8310-2-afd@ti.com>
On Thu, Feb 21, 2019 at 04:35:06PM -0600, Andrew F. Davis wrote:
> On HS devices the 512b region of reset isolated memory called
> MCU_PSRAM0 is firewalled by default. Until SYSFW is loaded we
> cannot use this memory. It is only used to store a single value
> left at the end of SRAM by ROM that will be needed later. Save
> that value to a global variable stored in the .data section.
> This section is used as .bss will be cleared between saving
> this value and using it.
>
> Signed-off-by: Andrew F. Davis <afd@ti.com>
> Reviewed-by: Andreas Dannenberg <dannenberg@ti.com>
> Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
--
Tom
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next prev parent reply other threads:[~2019-02-21 23:10 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-21 22:35 [U-Boot] [PATCH v2 0/7] AM65x HS device support Andrew F. Davis
2019-02-21 22:35 ` [U-Boot] [PATCH v2 1/7] arm: K3: Avoid use of MCU_PSRAM0 before SYSFW is loaded Andrew F. Davis
2019-02-21 23:10 ` Tom Rini [this message]
2019-04-10 15:24 ` Andrew F. Davis
2019-02-21 22:35 ` [U-Boot] [PATCH v2 2/7] firmware: ti_sci: Add support for firewall management Andrew F. Davis
2019-02-21 22:35 ` [U-Boot] [PATCH v2 3/7] firmware: ti_sci: Modify auth_boot TI-SCI API to match new version Andrew F. Davis
2019-02-21 22:35 ` [U-Boot] [PATCH v2 4/7] arm: mach-k3: Add secure device support Andrew F. Davis
2019-02-21 22:35 ` [U-Boot] [PATCH v2 5/7] arm: mach-k3: Add secure device build support Andrew F. Davis
2019-02-21 22:35 ` [U-Boot] [PATCH v2 6/7] configs: Add a config for AM65x High Security EVM Andrew F. Davis
2019-02-21 22:35 ` [U-Boot] [PATCH v2 7/7] doc: Update info on using K3 secure devices Andrew F. Davis
2019-04-12 16:27 ` [U-Boot] [U-Boot,v2,0/7] AM65x HS device support Tom Rini
2019-04-12 16:55 ` Andrew F. Davis
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