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risc-v/mpfs: don't reset uart1 while entering OpenSBI

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u-boot/kernel may use any uart, not just uart1, depending
on the device tree configuration. They will also reset the
corresponding uarts as well. It doesn't need to be done
here.

Signed-off-by: Eero Nurkkala <eero.nurkkala@offcode.fi>
This commit is contained in:
Eero Nurkkala 2022-01-20 11:10:05 +02:00 committed by Xiang Xiao
parent 54a4eb01ce
commit 133faf203d
1 changed files with 0 additions and 8 deletions
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8
arch/risc-v/src/mpfs/mpfs_opensbi.c
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@ -414,14 +414,6 @@ static int mpfs_early_init(bool cold_boot)
modifyreg32(MPFS_SYSREG_SOFT_RESET_CR, 0, SYSREG_SOFT_RESET_CR_MMC);
modifyreg32(MPFS_SYSREG_SOFT_RESET_CR, SYSREG_SOFT_RESET_CR_MMC, 0);
/* U-boot will use serial console 1, just turn on MMUART1 clocks now in
* order to see also u-boot traces.
*/
modifyreg32(MPFS_SYSREG_SOFT_RESET_CR, SYSREG_SOFT_RESET_CR_MMUART1, 0);
modifyreg32(MPFS_SYSREG_SUBBLK_CLOCK_CR, 0,
SYSREG_SUBBLK_CLOCK_CR_MMUART1);
/* There are other clocks that need to be enabled for the Linux kernel to
* run. For now, turn on all the clocks.
*/