Hello Peng,

On 16.10.24 08:33, Peng Fan wrote:
Subject: Re: imx8qxp: deneb board fails with current HEAD

Hello Peng,

On 16.10.24 08:11, Peng Fan wrote:
Hi Heiko,

Subject: imx8qxp: deneb board fails with current HEAD

Hello Peng,

I just rebased my current work on siemens deneb board with current
master:

* d5cab0d6ad - (HEAD -> master, origin/master,
origin/WIP/15Oct2024,
origin/HEAD) Revert "Makefile:
Drop SPL_FIT_GENERATOR / SPL_FIT_SOURCE support" changes (vor
3
Stunden) <Tom Rini>


My bad. I had a patch in my local, this should resolve the issue you
met.

No problem!

  From 3e5f8ad6cb93b9538852230d01c01b52d5c1c9d1 Mon Sep 17
00:00:00
2001
From: Peng Fan <[email protected]>
Date: Fri, 11 Oct 2024 19:57:49 +0800
Subject: [PATCH] clk: imx8: Add dummy clk

There is a dummy clk entry for i.MX8QM/QXP, so add the dummy clk
enable and get rate. Otherwise "__imx8_clk_enable(Invalid clk ID #0)".

Fixes: 76332fae769 ("mmc: fsl_esdhc_imx: Enable AHB/IPG clk with
clk
bulk API")
Signed-off-by: Peng Fan <[email protected]>
---
   drivers/clk/imx/clk-imx8qm.c  | 4 ++++
   drivers/clk/imx/clk-imx8qxp.c | 4 ++++
   2 files changed, 8 insertions(+)

diff --git a/drivers/clk/imx/clk-imx8qm.c
b/drivers/clk/imx/clk-imx8qm.c index 62fed7e3e32..466d71786cf
100644
--- a/drivers/clk/imx/clk-imx8qm.c
+++ b/drivers/clk/imx/clk-imx8qm.c
@@ -48,6 +48,8 @@ ulong imx8_clk_get_rate(struct clk *clk)
          debug("%s(#%lu)\n", __func__, clk->id);

          switch (clk->id) {
+       case IMX8QM_CLK_DUMMY:
+               return 0;
          case IMX8QM_A53_DIV:
                  resource = SC_R_A53;
                  pm_clk = SC_PM_CLK_CPU; @@ -264,6 +266,8 @@ int
__imx8_clk_enable(struct clk *clk, bool enable)
          debug("%s(#%lu)\n", __func__, clk->id);

          switch (clk->id) {
+       case IMX8QM_CLK_DUMMY:
+               return 0;
          case IMX8QM_I2C0_IPG_CLK:
          case IMX8QM_I2C0_CLK:
          case IMX8QM_I2C0_DIV:
diff --git a/drivers/clk/imx/clk-imx8qxp.c
b/drivers/clk/imx/clk-imx8qxp.c index 18bdc08971b..79098623bc8
100644
--- a/drivers/clk/imx/clk-imx8qxp.c
+++ b/drivers/clk/imx/clk-imx8qxp.c
@@ -51,6 +51,8 @@ ulong imx8_clk_get_rate(struct clk *clk)
          debug("%s(#%lu)\n", __func__, clk->id);

          switch (clk->id) {
+       case IMX8QXP_CLK_DUMMY:
+               return 0;
          case IMX8QXP_A35_DIV:
                  resource = SC_R_A35;
                  pm_clk = SC_PM_CLK_CPU; @@ -248,6 +250,8 @@ int
__imx8_clk_enable(struct clk *clk, bool enable)
          debug("%s(#%lu)\n", __func__, clk->id);

          switch (clk->id) {
+       case IMX8QXP_CLK_DUMMY:
+               return 0;
          case IMX8QXP_I2C0_CLK:
          case IMX8QXP_I2C0_IPG_CLK:
                  resource = SC_R_I2C_0;


Heh, yes, that what I thought after I had sended my EMail... but
wondering why we use a dummy here and not like it is in linux:

                  clocks = <&sdhc0_lpcg IMX_LPCG_CLK_4>,
                           <&sdhc0_lpcg IMX_LPCG_CLK_5>,
                           <&sdhc0_lpcg IMX_LPCG_CLK_0>;
                  clock-names = "ipg", "ahb", "per";

?

The current U-Boot support for i.MX8 not reuse the device
tree from kernel. The device tree diverges.

Yes, I know...

Do you plan to send this patch?

You mean "[PATCH] clk: imx8: Add dummy clk"?

Yes.

I could post it out. But If you wanna to add more
stuff, feel free to take it over and do that.

Please post it, thanks! You can add my

Reviewed-by: Heiko Schocher <[email protected]>

When posted, I will test it.

I not have plan to sync the DTB for i.MX8.

bye,
Heiko

Regards,
Peng.


bye,
Heiko
--
DENX Software Engineering GmbH,      Managing Director: Erika Unter
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell,
Germany
Phone: +49-8142-66989-52   Fax: +49-8142-66989-80   Email:
[email protected]

--
DENX Software Engineering GmbH,      Managing Director: Erika Unter
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-52   Fax: +49-8142-66989-80   Email: [email protected]

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