[U-Boot] [PATCH 6/8] ums: use get_device() not find_mmc_device();
Stephen Warren
swarren at wwwdotorg.org
Wed Apr 30 23:13:20 CEST 2014
From: Stephen Warren <swarren at nvidia.com>
get_device() is a generic routine that will support any type of block
device. Use this instead of the type-specific find_mmc_device(), for
future flexibility.
Cc: Przemyslaw Marczak <p.marczak at samsung.com>
Cc: Lukasz Majewski <l.majewski at samsung.com>
Signed-off-by: Stephen Warren <swarren at nvidia.com>
---
common/cmd_usb_mass_storage.c | 25 ++++++++++++++-----------
1 file changed, 14 insertions(+), 11 deletions(-)
diff --git a/common/cmd_usb_mass_storage.c b/common/cmd_usb_mass_storage.c
index 5ec5da6d4f04..b08f1e5be141 100644
--- a/common/cmd_usb_mass_storage.c
+++ b/common/cmd_usb_mass_storage.c
@@ -9,7 +9,6 @@
#include <common.h>
#include <command.h>
#include <g_dnl.h>
-#include <mmc.h>
#include <part.h>
#include <usb.h>
#include <usb_mass_storage.h>
@@ -40,17 +39,22 @@ static struct ums ums_dev = {
.name = "UMS disk",
};
-struct ums *ums_init(unsigned int dev_num)
+struct ums *ums_init(const char *devtype, const char *devnum)
{
- struct mmc *mmc = NULL;
+ block_dev_desc_t *block_dev;
+ int ret;
- mmc = find_mmc_device(dev_num);
- if (!mmc)
+ ret = get_device(devtype, devnum, &block_dev);
+ if (ret < 0)
return NULL;
- ums_dev.block_dev = &mmc->block_dev;
+ /* f_mass_storage.c assumes SECTOR_SIZE sectors */
+ if (block_dev->blksz != SECTOR_SIZE)
+ return NULL;
+
+ ums_dev.block_dev = block_dev;
ums_dev.start_sector = 0;
- ums_dev.num_sectors = mmc->capacity / SECTOR_SIZE;
+ ums_dev.num_sectors = block_dev->lba;
printf("UMS: disk start sector: %#x, count: %#x\n",
ums_dev.start_sector, ums_dev.num_sectors);
@@ -65,11 +69,10 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
return CMD_RET_USAGE;
const char *usb_controller = argv[1];
- const char *mmc_devstring = argv[2];
-
- unsigned int dev_num = simple_strtoul(mmc_devstring, NULL, 0);
+ const char *devtype = "mmc";
+ const char *devnum = argv[2];
- struct ums *ums = ums_init(dev_num);
+ struct ums *ums = ums_init(devtype, devnum);
if (!ums)
return CMD_RET_FAILURE;
--
1.8.1.5
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