[PATCH v4] bootstd: sata: Add bootstd support for ahci sata

[Tom Rini]

On Sun, Sep 17, 2023 at 04:06:48PM -0700, Tony Dinh wrote:
> Add ahci sata bootdev and corresponding hunting function.
> 
> Signed-off-by: Tony Dinh <mibodhi at gmail.com>
> Reviewed-by: Simon Glass <sjg at chromium.org>
> ---
> 
> Changes in v4:
> - Revise logic in bootmeth_script() to set devtype to sata for non-scsi
> SATA device
> - Rewrite sata_rescan() logic to properly remove all devices before probing
> - Add description to sata_rescan() header
> 
> Changes in v3:
> - Correct drivers/ata/Makefile to compile sata_bootdev only if
> ahci sata is enabled.
> 
> Changes in v2:
> - set devtype to sata in bootmeth_script for non-scsi SATA device.
> 
>  boot/bootmeth_script.c     | 14 +++++++--
>  drivers/ata/Makefile       |  2 +-
>  drivers/ata/sata.c         | 32 ++++++++++++++++++++
>  drivers/ata/sata_bootdev.c | 62 ++++++++++++++++++++++++++++++++++++++
>  include/sata.h             |  6 ++++
>  5 files changed, 112 insertions(+), 4 deletions(-)
>  create mode 100644 drivers/ata/sata_bootdev.c
> 
> diff --git a/boot/bootmeth_script.c b/boot/bootmeth_script.c
> index 58c57a2d4b..96e0ec5efa 100644
> --- a/boot/bootmeth_script.c
> +++ b/boot/bootmeth_script.c
> @@ -190,10 +190,18 @@ static int script_boot(struct udevice *dev, struct bootflow *bflow)
>  	ulong addr;
>  	int ret;
>  
> -	if (desc->uclass_id == UCLASS_USB)
> +	if (desc->uclass_id == UCLASS_USB) {
>  		ret = env_set("devtype", "usb");
> -	else
> -		ret = env_set("devtype", blk_get_devtype(bflow->blk));
> +	} else {
> +		/* If the uclass is AHCI, but the driver is ATA
> +		 * (not scsi), set devtype to sata
> +		 */
> +		if (!ret && IS_ENABLED(CONFIG_SATA) &&

This is a warning here as ret is uninitalized at this point.

-- 
Tom
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