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From: Igor Opaniuk <igor.opaniuk@gmail.com>
To: u-boot@lists.denx.de
Subject: [PATCH v2 07/13] imx8mm_evk: adjust dram size in case bl32 is used
Date: Fri, 27 Mar 2020 12:28:19 +0200	[thread overview]
Message-ID: <20200327102825.10230-8-igor.opaniuk@gmail.com> (raw)
In-Reply-To: <20200327102825.10230-1-igor.opaniuk@gmail.com>

From: Igor Opaniuk <igor.opaniuk@toradex.com>

Adjust DRAM size in case BL32 secure payload is loaded (OP-TEE/Trusty),
so during MMU initialization U-Boot won't touch this mem area.

BL32 is loaded to the end of DRAM, bl32 payload size is read from
rom_pointer[1]. This relates to the issue described in
59efa6b52b("imx8m: Fix MMU table issue for OPTEE memory").

Signed-off-by: Igor Opaniuk <igor.opaniuk@toradex.com>
---

 board/freescale/imx8mm_evk/imx8mm_evk.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/board/freescale/imx8mm_evk/imx8mm_evk.c b/board/freescale/imx8mm_evk/imx8mm_evk.c
index c5fd940eeb..53ebb949df 100644
--- a/board/freescale/imx8mm_evk/imx8mm_evk.c
+++ b/board/freescale/imx8mm_evk/imx8mm_evk.c
@@ -15,7 +15,11 @@ DECLARE_GLOBAL_DATA_PTR;
 
 int dram_init(void)
 {
-	gd->ram_size = PHYS_SDRAM_SIZE;
+	/* rom_pointer[1] contains the size of TEE occupies */
+	if (rom_pointer[1])
+		gd->ram_size = PHYS_SDRAM_SIZE - rom_pointer[1];
+	else
+		gd->ram_size = PHYS_SDRAM_SIZE;
 
 	return 0;
 }
-- 
2.17.1

  parent reply	other threads:[~2020-03-27 10:28 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-27 10:28 [PATCH v2 00/13] bugfix/improvements for IMX-based modules Igor Opaniuk
2020-03-27 10:28 ` [PATCH v2 01/13] ARM: dts: imx8qm-apalis: replace dm-spl with dm-pre-proper Igor Opaniuk
2020-03-27 10:28 ` [PATCH v2 02/13] ARM: dts: imx8qxp-colibri: " Igor Opaniuk
2020-03-27 10:28 ` [PATCH v2 03/13] ARM: dts: imx8qm-apalis: dm-pre-proper for pd_dma nodes Igor Opaniuk
2020-03-27 10:28 ` [PATCH v2 04/13] ARM: dts: imx8qxp-colibri: " Igor Opaniuk
2020-03-27 10:28 ` [PATCH v2 05/13] colibri_imx6: set gpr1 ENET_CLK_SEL Igor Opaniuk
2020-03-27 10:28 ` [PATCH v2 06/13] verdin-imx8mm: adjust dram size in case bl32 is used Igor Opaniuk
2020-04-18 10:50   ` sbabic at denx.de
2020-03-27 10:28 ` Igor Opaniuk [this message]
2020-03-27 10:49   ` [PATCH v2 07/13] imx8mm_evk: " Oleksandr Suvorov
2020-04-18 10:50   ` sbabic at denx.de
2020-03-27 10:28 ` [PATCH v2 08/13] verdin-imx8mm: add nfsboot wrapper to env Igor Opaniuk
2020-03-27 10:43   ` Oleksandr Suvorov
2020-04-18 10:51   ` sbabic at denx.de
2020-03-27 10:28 ` [PATCH v2 09/13] colibri_vf: enable relocation of fdt and initrd Igor Opaniuk
2020-04-18 10:50   ` sbabic at denx.de
2020-03-27 10:28 ` [PATCH v2 10/13] colibri_imx7: " Igor Opaniuk
2020-04-18 10:51   ` sbabic at denx.de
2020-03-27 10:28 ` [PATCH v2 11/13] apalis_imx6: " Igor Opaniuk
2020-04-18 10:51   ` sbabic at denx.de
2020-03-27 10:28 ` [PATCH v2 12/13] colibri-imx6ull: " Igor Opaniuk
2020-04-18 10:50   ` sbabic at denx.de
2020-03-27 10:28 ` [PATCH v2 13/13] colibri_imx6: " Igor Opaniuk
2020-04-18 10:50   ` sbabic at denx.de

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