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u-boot/common/cmd_mfsl.c
Wolfgang Denk 47e26b1bf9 cmd_usage(): simplify return code handling 
Lots of code use this construct:

	cmd_usage(cmdtp);
	return 1;

Change cmd_usage() let it return 1 - then we can replace all these
ocurrances by

	return cmd_usage(cmdtp);

This fixes a few places with incorrect return code handling, too.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2010-07-24 20:43:57 +02:00

405 lines
7.4 KiB
C
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/*
* (C) Copyright 2007 Michal Simek
*
* Michal SIMEK <monstr@monstr.eu>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* Microblaze FSL support
*/
#include <common.h>
#include <config.h>
#include <command.h>
#include <asm/asm.h>
int do_frd (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
{
unsigned int fslnum;
unsigned int num;
unsigned int blocking;
if (argc < 2)
return cmd_usage(cmdtp);
fslnum = (unsigned int)simple_strtoul (argv[1], NULL, 16);
blocking = (unsigned int)simple_strtoul (argv[2], NULL, 16);
if (fslnum < 0 || fslnum >= XILINX_FSL_NUMBER) {
puts ("Bad number of FSL\n");
return cmd_usage(cmdtp);
}
switch (fslnum) {
#if (XILINX_FSL_NUMBER > 0)
case 0:
switch (blocking) {
case 0: NGET (num, 0);
break;
case 1: NCGET (num, 0);
break;
case 2: GET (num, 0);
break;
case 3: CGET (num, 0);
break;
default:
return 2;
}
break;
#endif
#if (XILINX_FSL_NUMBER > 1)
case 1:
switch (blocking) {
case 0: NGET (num, 1);
break;
case 1: NCGET (num, 1);
break;
case 2: GET (num, 1);
break;
case 3: CGET (num, 1);
break;
default:
return 2;
}
break;
#endif
#if (XILINX_FSL_NUMBER > 2)
case 2:
switch (blocking) {
case 0: NGET (num, 2);
break;
case 1: NCGET (num, 2);
break;
case 2: GET (num, 2);
break;
case 3: CGET (num, 2);
break;
default:
return 2;
}
break;
#endif
#if (XILINX_FSL_NUMBER > 3)
case 3:
switch (blocking) {
case 0: NGET (num, 3);
break;
case 1: NCGET (num, 3);
break;
case 2: GET (num, 3);
break;
case 3: CGET (num, 3);
break;
default:
return 2;
}
break;
#endif
#if (XILINX_FSL_NUMBER > 4)
case 4:
switch (blocking) {
case 0: NGET (num, 4);
break;
case 1: NCGET (num, 4);
break;
case 2: GET (num, 4);
break;
case 3: CGET (num, 4);
break;
default:
return 2;
}
break;
#endif
#if (XILINX_FSL_NUMBER > 5)
case 5:
switch (blocking) {
case 0: NGET (num, 5);
break;
case 1: NCGET (num, 5);
break;
case 2: GET (num, 5);
break;
case 3: CGET (num, 5);
break;
default:
return 2;
}
break;
#endif
#if (XILINX_FSL_NUMBER > 6)
case 6:
switch (blocking) {
case 0: NGET (num, 6);
break;
case 1: NCGET (num, 6);
break;
case 2: GET (num, 6);
break;
case 3: CGET (num, 6);
break;
default:
return 2;
}
break;
#endif
#if (XILINX_FSL_NUMBER > 7)
case 7:
switch (blocking) {
case 0: NGET (num, 7);
break;
case 1: NCGET (num, 7);
break;
case 2: GET (num, 7);
break;
case 3: CGET (num, 7);
break;
default:
return 2;
}
break;
#endif
default:
return 1;
}
printf ("%01x: 0x%08x - %s %s read\n", fslnum, num,
blocking < 2 ? "non blocking" : "blocking",
((blocking == 1) || (blocking == 3)) ? "control" : "data" );
return 0;
}
int do_fwr (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
{
unsigned int fslnum;
unsigned int num;
unsigned int blocking;
if (argc < 3)
return cmd_usage(cmdtp);
fslnum = (unsigned int)simple_strtoul (argv[1], NULL, 16);
num = (unsigned int)simple_strtoul (argv[2], NULL, 16);
blocking = (unsigned int)simple_strtoul (argv[3], NULL, 16);
if (fslnum < 0 || fslnum >= XILINX_FSL_NUMBER)
return cmd_usage(cmdtp);
switch (fslnum) {
#if (XILINX_FSL_NUMBER > 0)
case 0:
switch (blocking) {
case 0: NPUT (num, 0);
break;
case 1: NCPUT (num, 0);
break;
case 2: PUT (num, 0);
break;
case 3: CPUT (num, 0);
break;
default:
return 2;
}
break;
#endif
#if (XILINX_FSL_NUMBER > 1)
case 1:
switch (blocking) {
case 0: NPUT (num, 1);
break;
case 1: NCPUT (num, 1);
break;
case 2: PUT (num, 1);
break;
case 3: CPUT (num, 1);
break;
default:
return 2;
}
break;
#endif
#if (XILINX_FSL_NUMBER > 2)
case 2:
switch (blocking) {
case 0: NPUT (num, 2);
break;
case 1: NCPUT (num, 2);
break;
case 2: PUT (num, 2);
break;
case 3: CPUT (num, 2);
break;
default:
return 2;
}
break;
#endif
#if (XILINX_FSL_NUMBER > 3)
case 3:
switch (blocking) {
case 0: NPUT (num, 3);
break;
case 1: NCPUT (num, 3);
break;
case 2: PUT (num, 3);
break;
case 3: CPUT (num, 3);
break;
default:
return 2;
}
break;
#endif
#if (XILINX_FSL_NUMBER > 4)
case 4:
switch (blocking) {
case 0: NPUT (num, 4);
break;
case 1: NCPUT (num, 4);
break;
case 2: PUT (num, 4);
break;
case 3: CPUT (num, 4);
break;
default:
return 2;
}
break;
#endif
#if (XILINX_FSL_NUMBER > 5)
case 5:
switch (blocking) {
case 0: NPUT (num, 5);
break;
case 1: NCPUT (num, 5);
break;
case 2: PUT (num, 5);
break;
case 3: CPUT (num, 5);
break;
default:
return 2;
}
break;
#endif
#if (XILINX_FSL_NUMBER > 6)
case 6:
switch (blocking) {
case 0: NPUT (num, 6);
break;
case 1: NCPUT (num, 6);
break;
case 2: PUT (num, 6);
break;
case 3: CPUT (num, 6);
break;
default:
return 2;
}
break;
#endif
#if (XILINX_FSL_NUMBER > 7)
case 7:
switch (blocking) {
case 0: NPUT (num, 7);
break;
case 1: NCPUT (num, 7);
break;
case 2: PUT (num, 7);
break;
case 3: CPUT (num, 7);
break;
default:
return 2;
}
break;
#endif
default:
return 1;
}
printf ("%01x: 0x%08x - %s %s write\n", fslnum, num,
blocking < 2 ? "non blocking" : "blocking",
((blocking == 1) || (blocking == 3)) ? "control" : "data" );
return 0;
}
int do_rspr (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
{
unsigned int reg = 0;
unsigned int val = 0;
if (argc < 2)
return cmd_usage(cmdtp);
reg = (unsigned int)simple_strtoul (argv[1], NULL, 16);
val = (unsigned int)simple_strtoul (argv[2], NULL, 16);
switch (reg) {
case 0x1:
if (argc > 2) {
MTS (val, rmsr);
NOP;
MFS (val, rmsr);
} else {
MFS (val, rmsr);
}
puts ("MSR");
break;
case 0x3:
MFS (val, rear);
puts ("EAR");
break;
case 0x5:
MFS (val, resr);
puts ("ESR");
break;
default:
puts ("Unsupported register\n");
return 1;
}
printf (": 0x%08x\n", val);
return 0;
}
/***************************************************/
U_BOOT_CMD (frd, 3, 1, do_frd,
"read data from FSL",
"- [fslnum [0|1|2|3]]\n"
" 0 - non blocking data read\n"
" 1 - non blocking control read\n"
" 2 - blocking data read\n"
" 3 - blocking control read");
U_BOOT_CMD (fwr, 4, 1, do_fwr,
"write data to FSL",
"- [fslnum [0|1|2|3]]\n"
" 0 - non blocking data write\n"
" 1 - non blocking control write\n"
" 2 - blocking data write\n"
" 3 - blocking control write");
U_BOOT_CMD (rspr, 3, 1, do_rspr,
"read/write special purpose register",
"- reg_num [write value] read/write special purpose register\n"
" 1 - MSR - Machine status register\n"
" 3 - EAR - Exception address register\n"
" 5 - ESR - Exception status register");
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