diff options
author | Simon Glass <sjg@chromium.org> | 2016-01-18 03:53:51 (GMT) |
---|---|---|
committer | Tom Rini <trini@konsulko.com> | 2016-01-25 15:39:43 (GMT) |
commit | 72a8cf8dccf6f8b86d1683205e032a94eaa86938 (patch) | |
tree | b29378eb8af182f0faf2028cb52465a021de40cc /cmd/cmd_dcr.c | |
parent | 25d5352c71dcc599030a4a764d8087185ed537d3 (diff) | |
download | u-boot-72a8cf8dccf6f8b86d1683205e032a94eaa86938.tar.xz |
Move all command code into its own directory
There are a lot of unrelated files in common, including all of the commands.
Moving them into their own directory makes them easier to find and is more
logical.
Some commands include non-command code, such as cmd_scsi.c. This should be
sorted out at some point so that the function can be enabled with or without
the associated command.
Unfortunately, with m68k I get this error:
m68k: + M5329AFEE
+arch/m68k/cpu/mcf532x/start.o: In function `_start':
+arch/m68k/cpu/mcf532x/start.S:159:(.text+0x452): relocation truncated to fit: R_68K_PC16 against symbol `board_init_f' defined in .text.board_init_f section in common/built-in.o
I hope someone can shed some light on what this means. I hope it isn't
depending on the position of code in the image.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
Diffstat (limited to 'cmd/cmd_dcr.c')
-rw-r--r-- | cmd/cmd_dcr.c | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/cmd/cmd_dcr.c b/cmd/cmd_dcr.c new file mode 100644 index 0000000..cc77250 --- /dev/null +++ b/cmd/cmd_dcr.c @@ -0,0 +1,222 @@ +/* + * (C) Copyright 2001 + * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* + * AMCC 4XX DCR Functions + */ + +#include <common.h> +#include <cli.h> +#include <config.h> +#include <command.h> +#include <console.h> + +unsigned long get_dcr (unsigned short); +unsigned long set_dcr (unsigned short, unsigned long); + +/* ======================================================================= + * Interpreter command to retrieve an AMCC PPC 4xx Device Control Register + * ======================================================================= + */ +int do_getdcr ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[] ) +{ + unsigned short dcrn; /* Device Control Register Num */ + unsigned long value; /* DCR's value */ + + unsigned long get_dcr (unsigned short); + + /* Validate arguments */ + if (argc < 2) + return CMD_RET_USAGE; + + /* Get a DCR */ + dcrn = (unsigned short) simple_strtoul (argv[1], NULL, 16); + value = get_dcr (dcrn); + + printf ("%04x: %08lx\n", dcrn, value); + + return 0; +} + + +/* ====================================================================== + * Interpreter command to set an AMCC PPC 4xx Device Control Register + * ====================================================================== +*/ +int do_setdcr (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) +{ + unsigned short dcrn; /* Device Control Register Num */ + unsigned long value; + + /* DCR's value */ + int nbytes; + + /* Validate arguments */ + if (argc < 2) + return CMD_RET_USAGE; + + /* Set a DCR */ + dcrn = (unsigned short) simple_strtoul (argv[1], NULL, 16); + do { + value = get_dcr (dcrn); + printf ("%04x: %08lx", dcrn, value); + nbytes = cli_readline(" ? "); + if (nbytes == 0) { + /* + * <CR> pressed as only input, don't modify current + * location and exit command. + */ + nbytes = 1; + return 0; + } else { + unsigned long i; + char *endp; + + i = simple_strtoul (console_buffer, &endp, 16); + nbytes = endp - console_buffer; + if (nbytes) + set_dcr (dcrn, i); + } + } while (nbytes); + + return 0; +} + +/* ======================================================================= + * Interpreter command to retrieve an register value through AMCC PPC 4xx + * Device Control Register inderect addressing. + * ======================================================================= + */ +int do_getidcr (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + unsigned short adr_dcrn; /* Device Control Register Num for Address */ + unsigned short dat_dcrn; /* Device Control Register Num for Data */ + unsigned short offset; /* Register's offset */ + unsigned long value; /* Register's value */ + char *ptr = NULL; + char buf[80]; + + /* Validate arguments */ + if (argc < 3) + return CMD_RET_USAGE; + + /* Find out whether ther is '.' (dot) symbol in the first parameter. */ + strncpy (buf, argv[1], sizeof(buf)-1); + buf[sizeof(buf)-1] = 0; /* will guarantee zero-end string */ + ptr = strchr (buf, '.'); + + if (ptr != NULL) { + /* First parameter has format adr_dcrn.dat_dcrn */ + *ptr++ = 0; /* erase '.', create zero-end string */ + adr_dcrn = (unsigned short) simple_strtoul (buf, NULL, 16); + dat_dcrn = (unsigned short) simple_strtoul (ptr, NULL, 16); + } else { + /* + * First parameter has format adr_dcrn; dat_dcrn will be + * calculated as adr_dcrn+1. + */ + adr_dcrn = (unsigned short) simple_strtoul (buf, NULL, 16); + dat_dcrn = adr_dcrn+1; + } + + /* Register's offset */ + offset = (unsigned short) simple_strtoul (argv[2], NULL, 16); + + /* Disable interrupts */ + disable_interrupts (); + /* Set offset */ + set_dcr (adr_dcrn, offset); + /* get data */ + value = get_dcr (dat_dcrn); + /* Enable interrupts */ + enable_interrupts (); + + printf ("%04x.%04x-%04x Read %08lx\n", adr_dcrn, dat_dcrn, offset, value); + + return 0; +} + +/* ======================================================================= + * Interpreter command to update an register value through AMCC PPC 4xx + * Device Control Register inderect addressing. + * ======================================================================= + */ +int do_setidcr (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) +{ + unsigned short adr_dcrn; /* Device Control Register Num for Address */ + unsigned short dat_dcrn; /* Device Control Register Num for Data */ + unsigned short offset; /* Register's offset */ + unsigned long value; /* Register's value */ + char *ptr = NULL; + char buf[80]; + + /* Validate arguments */ + if (argc < 4) + return CMD_RET_USAGE; + + /* Find out whether ther is '.' (dot) symbol in the first parameter. */ + strncpy (buf, argv[1], sizeof(buf)-1); + buf[sizeof(buf)-1] = 0; /* will guarantee zero-end string */ + ptr = strchr (buf, '.'); + + if (ptr != NULL) { + /* First parameter has format adr_dcrn.dat_dcrn */ + *ptr++ = 0; /* erase '.', create zero-end string */ + adr_dcrn = (unsigned short) simple_strtoul (buf, NULL, 16); + dat_dcrn = (unsigned short) simple_strtoul (ptr, NULL, 16); + } else { + /* + * First parameter has format adr_dcrn; dat_dcrn will be + * calculated as adr_dcrn+1. + */ + adr_dcrn = (unsigned short) simple_strtoul (buf, NULL, 16); + dat_dcrn = adr_dcrn+1; + } + + /* Register's offset */ + offset = (unsigned short) simple_strtoul (argv[2], NULL, 16); + /* New value */ + value = (unsigned long) simple_strtoul (argv[3], NULL, 16); + + /* Disable interrupts */ + disable_interrupts (); + /* Set offset */ + set_dcr (adr_dcrn, offset); + /* set data */ + set_dcr (dat_dcrn, value); + /* Enable interrupts */ + enable_interrupts (); + + printf ("%04x.%04x-%04x Write %08lx\n", adr_dcrn, dat_dcrn, offset, value); + + return 0; +} + +/***************************************************/ + +U_BOOT_CMD( + getdcr, 2, 1, do_getdcr, + "Get an AMCC PPC 4xx DCR's value", + "dcrn - return a DCR's value." +); +U_BOOT_CMD( + setdcr, 2, 1, do_setdcr, + "Set an AMCC PPC 4xx DCR's value", + "dcrn - set a DCR's value." +); + +U_BOOT_CMD( + getidcr, 3, 1, do_getidcr, + "Get a register value via indirect DCR addressing", + "adr_dcrn[.dat_dcrn] offset - write offset to adr_dcrn, read value from dat_dcrn." +); + +U_BOOT_CMD( + setidcr, 4, 1, do_setidcr, + "Set a register value via indirect DCR addressing", + "adr_dcrn[.dat_dcrn] offset value - write offset to adr_dcrn, write value to dat_dcrn." +); |