[U-Boot] [PATCH] x86: Add 'imply SCSI' to boards using AHCI_PCI

[Tuomas Tynkkynen]

The qemu and coreboot boards have 'imply AHCI_PCI' but no 'imply SCSI',
i.e. they are enabling the driver for the Serial ATA controller but
(AFAICT) have no way of accessing those devices from the prompt.

In fact, without this patch I get a silent U-Boot crash when I add a
SATA device to QEMU with the following options:

    -drive if=none,file=mydisk.qcow2,id=root
    -device ich9-ahci,id=ahci
    -device ide-drive,drive=root,bus=ahci.0

With the 'imply SCSI' added, U-Boot doesn't crash and the drive is found
when 'scsi scan' is run.

Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen at iki.fi>
---
Hi Bin, Simon

Does this make sense? I was working on converting drivers/ata to
Kconfig, which includes CONFIG_SCSI_AHCI (used by x86) but noticed these
boards that currently have {SCSI=n, AHCI_PCI=y, SCSI_AHCI=y}.
---
 arch/x86/cpu/coreboot/Kconfig | 1 +
 arch/x86/cpu/qemu/Kconfig     | 1 +
 2 files changed, 2 insertions(+)

diff --git arch/x86/cpu/coreboot/Kconfig arch/x86/cpu/coreboot/Kconfig
index 60eb45f9d0..0e83a43d99 100644
--- arch/x86/cpu/coreboot/Kconfig
+++ arch/x86/cpu/coreboot/Kconfig
@@ -10,6 +10,7 @@ config SYS_COREBOOT
 	imply MMC_PCI
 	imply MMC_SDHCI
 	imply MMC_SDHCI_SDMA
+	imply SCSI
 	imply SPI_FLASH
 	imply SYS_NS16550
 	imply USB
diff --git arch/x86/cpu/qemu/Kconfig arch/x86/cpu/qemu/Kconfig
index 81444f3d9e..a0090281b9 100644
--- arch/x86/cpu/qemu/Kconfig
+++ arch/x86/cpu/qemu/Kconfig
@@ -9,6 +9,7 @@ config QEMU
 	select ARCH_EARLY_INIT_R
 	imply AHCI_PCI
 	imply E1000
+	imply SCSI
 	imply SYS_NS16550
 	imply USB
 	imply USB_EHCI_HCD
-- 
2.15.0