A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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spi: nxp-fspi: reset the FLSHxCR1 registers

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[ Upstream commit 18495676f7886e105133f1dc06c1d5e8d5436f32 ]

Reset the FLSHxCR1 registers to default value. ROM may set the register
value and it affects the SPI NAND normal functions.

Signed-off-by: Han Xu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
This commit is contained in:
Han Xu 2023-09-06 13:32:54 -05:00 • committed by Greg Kroah-Hartman
commit db4afbc6c1
1 changed files with 7 additions and 0 deletions
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7
drivers/spi/spi-nxp-fspi.c
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@ -897,6 +897,13 @@ static int nxp_fspi_default_setup(struct nxp_fspi *f)
fspi_writel(f, FSPI_AHBCR_PREF_EN | FSPI_AHBCR_RDADDROPT,
base + FSPI_AHBCR);
/* Reset the FLSHxCR1 registers. */
reg = FSPI_FLSHXCR1_TCSH(0x3) | FSPI_FLSHXCR1_TCSS(0x3);
fspi_writel(f, reg, base + FSPI_FLSHA1CR1);
fspi_writel(f, reg, base + FSPI_FLSHA2CR1);
fspi_writel(f, reg, base + FSPI_FLSHB1CR1);
fspi_writel(f, reg, base + FSPI_FLSHB2CR1);
/* AHB Read - Set lut sequence ID for all CS. */
fspi_writel(f, SEQID_LUT, base + FSPI_FLSHA1CR2);
fspi_writel(f, SEQID_LUT, base + FSPI_FLSHA2CR2);