On 3/23/22 2:26 PM, Heiko Thiery wrote:
Hi Simon,

Am Mi., 23. März 2022 um 19:04 Uhr schrieb Simon Glass <s...@chromium.org>:

Hi Heinrich,

On Tue, 22 Mar 2022 at 03:25, Heinrich Schuchardt <xypron.g...@gmx.de> wrote:

On 3/21/22 15:26, Heiko Thiery wrote:
It was observed that enabling additional DM modules the configured
malloc value is not sufficient. So lets increase the value.

Signed-off-by: Heiko Thiery <heiko.thi...@gmail.com>
---
v2:
   - add a more proper commit message to explan why the value was increased

   configs/kontron_pitx_imx8m_defconfig | 1 +
   1 file changed, 1 insertion(+)

diff --git a/configs/kontron_pitx_imx8m_defconfig 
b/configs/kontron_pitx_imx8m_defconfig
index 76430213e3..30c3586937 100644
--- a/configs/kontron_pitx_imx8m_defconfig
+++ b/configs/kontron_pitx_imx8m_defconfig
@@ -2,6 +2,7 @@ CONFIG_ARM=y
   CONFIG_ARCH_IMX8M=y
   CONFIG_SYS_TEXT_BASE=0x40200000
   CONFIG_SYS_MALLOC_LEN=0x600000
+CONFIG_SYS_MALLOC_F_LEN=0x10000

@Heiko
Should we really adjust this on board level? Won't we have the same
problem on all imx8m boards?

Why don't you change the default for all i.mx8 boards in /Kconfig?

@Tom, @Simon
Shouldn't we replace the default of 0x400 by 0x2000 generally?

I don't think that is a good idea. That is a lot of memory! Many
platforms don't need that much.

I wonder what is driving this large amount. Is it pinctrl?

The increase comes from the introduction of a clock driver for the
imx8mq platform.

Yes, the problem is that CCF creates a udevice+clk+private data for
every clock. This runs about 150-200 bytes per clock on a 64-bit
platform. In addition, many physical clocks are modeled as several
logical clocks plus a composite. This means a platform with maybe
20-30 physical clocks can easily allocate 10k-20k to create
the clock tree.

--Sean

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