[PATCH master 0/4] ARM: i.MX8M: fix various miscalculation of DRAM size
Ahmad Fatoum
a.fatoum at pengutronix.de
Thu Jun 23 03:42:47 PDT 2022
On 23.06.22 12:30, Ahmad Fatoum wrote:
> This fixes issues of wrong DRAM size calculation for imx8mq-evk,
> phytec-som-imx8mq, zii-imx8mq-dev as well as an out-of-tree
> i.MX8MM board I have.
>
> For i.MX8MN-EVK, DDR4 size is correctly calculated, but not LPDDR4.
> I can't see where the issue is though, so I am disabling detection
> there until it's figured out. Device Tree already contains correct
> RAM size.
i.MX8MN has only 16-bit wide bus, which would explain the discrepancy.
v2 incoming..
>
> Ahmad Fatoum (4):
> ARM: i.MX8M: esdctl: ignore ADDRMAP8 for non-DDR4
> ARM: i.MX8MQ: initialize ADDRMAP7
> ddr: imx8m: workaround old spreadsheets not initializing ADDRMAP7
> ARM: i.MX8M: imx8mn-evk: disable DDRC memory detection
>
> arch/arm/boards/nxp-imx8mn-evk/board.c | 7 +++++++
> arch/arm/boards/nxp-imx8mq-evk/ddr_init.c | 3 ++-
> arch/arm/boards/phytec-som-imx8mq/ddr_init.c | 1 +
> arch/arm/boards/zii-imx8mq-dev/ddr_init.c | 3 ++-
> arch/arm/mach-imx/esdctl.c | 8 +++++++-
> drivers/ddr/imx8m/ddr_init.c | 18 ++++++++++++++++++
> drivers/ddr/imx8m/helper.c | 6 ++++++
> include/soc/imx8m/ddr.h | 1 +
> 8 files changed, 44 insertions(+), 3 deletions(-)
>
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