u-boot/cmd/mvebu/comphy_rx_training.c
Shenlin Liang 5b333b9324 cmd: change the return value when argc error
When the number of parameters is wrong, the return value should be processed in
the same way as other cmds, return CMD_RET_USAGE so that it can print the information.

Signed-off-by: Shenlin Liang <liangshenlin@eswincomputing.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2023-01-11 11:54:50 -05:00

57 lines
1.2 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2017 Marvell International Ltd.
*
* SPDX-License-Identifier: GPL-2.0
*/
#include <common.h>
#include <command.h>
#include <console.h>
#include <dm.h>
#include <fdtdec.h>
#include <dm/device-internal.h>
#include <mvebu/comphy.h>
int mvebu_comphy_rx_training_cmd(struct cmd_tbl *cmdtp, int flag, int argc,
char * const argv[])
{
struct udevice *dev;
struct uclass *uc;
int ret, cp_index, comphy_index, i = 0;
if (argc != 3) {
printf("missing arguments\n");
return CMD_RET_USAGE;
}
cp_index = hextoul(argv[1], NULL);
comphy_index = hextoul(argv[2], NULL);
ret = uclass_get(UCLASS_MISC, &uc);
if (ret) {
printf("Couldn't find UCLASS_MISC\n");
return ret;
}
uclass_foreach_dev(dev, uc) {
if (!(memcmp(dev->name, "comphy", 5))) {
if (i == cp_index) {
comphy_rx_training(dev, comphy_index);
return 0;
}
i++;
}
}
printf("Coudn't find comphy %d\n", cp_index);
return 0;
}
U_BOOT_CMD(
mvebu_comphy_rx_training, 3, 0, mvebu_comphy_rx_training_cmd,
"mvebu_comphy_rx_training <cp id> <comphy id>\n",
"\n\tRun COMPHY RX training sequence, the user must state CP index (0/1) and comphy ID (0/5)"
);