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cmd_fpga: cleanup help and check parameters

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The usage and help for the fpga command is wrong and incomplete,
and the parameters are not checked before to be passed to the
underlying subfunction.

Signed-off-by: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Stefano Babic 2010-10-19 09:22:52 +02:00 committed by Wolfgang Denk
parent c56ded6a6e
commit a790b5b232
1 changed files with 39 additions and 11 deletions
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40
common/cmd_fpga.c
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@ -163,6 +163,7 @@ int do_fpga (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
char *devstr = getenv ("fpga");
char *datastr = getenv ("fpgadata");
int rc = FPGA_FAIL;
int wrong_parms = 0;
#if defined (CONFIG_FIT)
const char *fit_uname = NULL;
ulong fit_addr;
@ -229,6 +230,32 @@ int do_fpga (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
break;
}
if (dev == FPGA_INVALID_DEVICE) {
puts("FPGA device not specified\n");
op = FPGA_NONE;
}
switch (op) {
case FPGA_NONE:
case FPGA_INFO:
break;
case FPGA_LOAD:
case FPGA_LOADB:
case FPGA_DUMP:
if (!fpga_data || !data_size)
wrong_parms = 1;
break;
case FPGA_LOADMK:
if (!fpga_data)
wrong_parms = 1;
break;
}
if (wrong_parms) {
puts("Wrong parameters for FPGA request\n");
op = FPGA_NONE;
}
switch (op) {
case FPGA_NONE:
return cmd_usage(cmdtp);
@ -343,13 +370,14 @@ static int fpga_get_op (char *opstr)
U_BOOT_CMD (fpga, 6, 1, do_fpga,
"loadable FPGA image support",
"fpga [operation type] [device number] [image address] [image size]\n"
"[operation type] [device number] [image address] [image size]\n"
"fpga operations:\n"
"\tinfo\tlist known device information\n"
"\tload\tLoad device from memory buffer\n"
"\tloadb\tLoad device from bitstream buffer (Xilinx devices only)\n"
"\tloadmk\tLoad device generated with mkimage\n"
"\tdump\tLoad device to memory buffer"
" dump\t[dev]\t\t\tLoad device to memory buffer\n"
" info\t[dev]\t\t\tlist known device information\n"
" load\t[dev] [address] [size]\tLoad device from memory buffer\n"
" loadb\t[dev] [address] [size]\t"
"Load device from bitstream buffer (Xilinx only)\n"
" loadmk [dev] [address]\tLoad device generated with mkimage"
#if defined(CONFIG_FIT)
"\n"
"\tFor loadmk operating on FIT format uImage address must include\n"