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ast2600: spl: Use readl for reading mmio

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u-boot was crashing in qemu as the modeled hardware enforced overly
strict memory reads.

While this code will work on existing hardware, fix to avoid future issues.

Fixes: 12770d0df0 ("ast2600: spl: Add boot mode detection")
Link: https://gitlab.com/qemu-project/qemu/-/issues/2636
Signed-off-by: Joel Stanley <joel@jms.id.au>
This commit is contained in:
Joel Stanley 2024-11-18 12:42:56 +10:30 • committed by Tom Rini
parent c0e978b4b7
commit 7327218681
1 changed files with 2 additions and 2 deletions
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4
arch/arm/mach-aspeed/ast2600/spl.c
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@ -45,10 +45,10 @@ u32 spl_boot_device(void)
}
/* boot from UART has higher priority */
if (scu->hwstrap2 & SCU_HWSTRAP2_BOOT_UART)
if (readl(&scu->hwstrap2) & SCU_HWSTRAP2_BOOT_UART)
return BOOT_DEVICE_UART;
if (scu->hwstrap1 & SCU_HWSTRAP1_BOOT_EMMC)
if (readl(&scu->hwstrap1) & SCU_HWSTRAP1_BOOT_EMMC)
return BOOT_DEVICE_MMC1;
out: