From: Joel Stanley Date: Mon, 18 Nov 2024 02:12:56 +0000 (+1030) Subject: ast2600: spl: Use readl for reading mmio X-Git-Url: http://git.dujemihanovic.xyz/posts?a=commitdiff_plain;h=7327218681d98e8f66624667c6e3b0554502ce6c;p=u-boot.git ast2600: spl: Use readl for reading mmio 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: 12770d0df0e8 ("ast2600: spl: Add boot mode detection") Link: https://gitlab.com/qemu-project/qemu/-/issues/2636 Signed-off-by: Joel Stanley --- diff --git a/arch/arm/mach-aspeed/ast2600/spl.c b/arch/arm/mach-aspeed/ast2600/spl.c index 05390c16f3..0c5a82ed09 100644 --- a/arch/arm/mach-aspeed/ast2600/spl.c +++ b/arch/arm/mach-aspeed/ast2600/spl.c @@ -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: