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arch/imx9: Increase uSDHC root clock to 400MHz

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This is the nominal speed according to the TRM, and using higher
root clock gives more frequency selections (possible dividers) for
the SD card clock configuration.

Signed-off-by: Jukka Laitinen <jukka.laitinen@tii.ae>
This commit is contained in:
Jukka Laitinen 2026-02-16 08:33:36 +02:00 • committed by Matteo Golin
parent 191575eac1
commit 79730c83ca
1 changed files with 2 additions and 2 deletions
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4
arch/arm64/src/imx9/imx9_usdhc.c
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@ -3453,7 +3453,7 @@ struct sdio_dev_s *imx9_usdhc_initialize(int slotno)
/* Enable clocks */
imx9_ccm_configure_root_clock(CCM_CR_USDHC1, SYS_PLL1PFD1, 4);
imx9_ccm_configure_root_clock(CCM_CR_USDHC1, SYS_PLL1PFD1, 2);
imx9_get_rootclock(CCM_CR_USDHC1, &priv->root_clock_freq);
imx9_ccm_gate_on(CCM_LPCG_USDHC1, true);
@ -3488,7 +3488,7 @@ struct sdio_dev_s *imx9_usdhc_initialize(int slotno)
/* Enable clocks */
imx9_ccm_configure_root_clock(CCM_CR_USDHC2, SYS_PLL1PFD1, 4);
imx9_ccm_configure_root_clock(CCM_CR_USDHC2, SYS_PLL1PFD1, 2);
imx9_get_rootclock(CCM_CR_USDHC2, &priv->root_clock_freq);
imx9_ccm_gate_on(CCM_LPCG_USDHC2, true);