diff options
| author | Dan Murphy <dmurphy@ti.com> | 2014-01-16 11:23:30 -0600 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-01-24 16:59:22 -0500 |
| commit | 8cffe5bd0d601f64eca78d28b8a710ad6ca8edd2 (patch) | |
| tree | 17c1cec019810ffc5dcb4a59ab0522cec4c5fdf5 /common/spl/spl_usb.c | |
| parent | 773b5940b5f2fb5d1041c6f4db5796121ccd29c5 (diff) | |
spl: common: Support for USB MSD FAT image loading
Add SPL support to be able to detect a USB Mass Storage device
connected to a USB host. Once a USB Mass storage device is detected
the SPL will load the u-boot.img from a FAT partition to target address.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Diffstat (limited to 'common/spl/spl_usb.c')
| -rw-r--r-- | common/spl/spl_usb.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/common/spl/spl_usb.c b/common/spl/spl_usb.c new file mode 100644 index 0000000000..53a9043795 --- /dev/null +++ b/common/spl/spl_usb.c @@ -0,0 +1,58 @@ +/* + * (C) Copyright 2014 + * Texas Instruments, <www.ti.com> + * + * Dan Murphy <dmurphy@ti.com> + * + * SPDX-License-Identifier: GPL-2.0+ + * + * Derived work from spl_mmc.c + */ + +#include <common.h> +#include <spl.h> +#include <asm/u-boot.h> +#include <usb.h> +#include <fat.h> + +DECLARE_GLOBAL_DATA_PTR; + +#ifdef CONFIG_USB_STORAGE +static int usb_stor_curr_dev = -1; /* current device */ +#endif + +void spl_usb_load_image(void) +{ + int err; + block_dev_desc_t *stor_dev; + + usb_stop(); + err = usb_init(); + if (err) { +#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT + printf("%s: usb init failed: err - %d\n", __func__, err); +#endif + hang(); + } + +#ifdef CONFIG_USB_STORAGE + /* try to recognize storage devices immediately */ + usb_stor_curr_dev = usb_stor_scan(1); + stor_dev = usb_stor_get_dev(usb_stor_curr_dev); +#endif + + debug("boot mode - FAT\n"); + +#ifdef CONFIG_SPL_OS_BOOT + if (spl_start_uboot() || spl_load_image_fat_os(stor_dev, + CONFIG_SYS_USB_FAT_BOOT_PARTITION)) +#endif + err = spl_load_image_fat(stor_dev, + CONFIG_SYS_USB_FAT_BOOT_PARTITION, + CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME); + + if (err) { + puts("Error loading USB device\n"); + hang(); + } +} |