From 72a8cf8dccf6f8b86d1683205e032a94eaa86938 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Sun, 17 Jan 2016 20:53:51 -0700 Subject: 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 Reviewed-by: Bin Meng Reviewed-by: Heiko Schocher Acked-by: Stefan Roese Acked-by: Przemyslaw Marczak --- cmd/cmd_dcr.c | 222 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 222 insertions(+) create mode 100644 cmd/cmd_dcr.c (limited to 'cmd/cmd_dcr.c') diff --git a/cmd/cmd_dcr.c b/cmd/cmd_dcr.c new file mode 100644 index 00000000000..cc77250ac82 --- /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 +#include +#include +#include +#include + +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) { + /* + * 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." +); -- cgit v1.2.3