From: Alim Akhtar alim.akhtar@samsung.com
Adds a new u-boot command to read current temprature from tmu driver.
Signed-off-by: Alim Akhtar alim.akhtar@samsung.com Acked-by: Simon Glass sjg@chromium.org --- Changes since v2: - Updated Monitor Commands in README
README | 1 + common/Makefile | 1 + common/cmd_tmu.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 53 insertions(+), 0 deletions(-) create mode 100644 common/cmd_tmu.c
diff --git a/README b/README index 72b3b67..58ac542 100644 --- a/README +++ b/README @@ -3850,6 +3850,7 @@ icache - enable or disable instruction cache dcache - enable or disable data cache reset - Perform RESET of the CPU echo - echo args to console +tmu - measurement values by Thermal Management Unit version - print monitor version help - print online help ? - alias for 'help' diff --git a/common/Makefile b/common/Makefile index dca2f53..b56ffa2 100644 --- a/common/Makefile +++ b/common/Makefile @@ -159,6 +159,7 @@ COBJS-$(CONFIG_CMD_STRINGS) += cmd_strings.o COBJS-$(CONFIG_CMD_TERMINAL) += cmd_terminal.o COBJS-$(CONFIG_CMD_TIME) += cmd_time.o COBJS-$(CONFIG_SYS_HUSH_PARSER) += cmd_test.o +COBJS-$(CONFIG_CMD_TMU) += cmd_tmu.o COBJS-$(CONFIG_CMD_TPM) += cmd_tpm.o COBJS-$(CONFIG_CMD_TSI148) += cmd_tsi148.o COBJS-$(CONFIG_CMD_UBI) += cmd_ubi.o diff --git a/common/cmd_tmu.c b/common/cmd_tmu.c new file mode 100644 index 0000000..7fbf845 --- /dev/null +++ b/common/cmd_tmu.c @@ -0,0 +1,51 @@ +/* + * Copyright (C) 2012 Samsung Electronics + * Alim Akhtar alim.akhtar@samsung.com + * + * 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 + */ + +#include <common.h> +#include <command.h> +#include <tmu.h> + +int do_tmu(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + int cur_temp; + + if (argc < 2) + return CMD_RET_USAGE; + + if (strcmp(argv[1], "curtemp") == 0) { + if (tmu_monitor(&cur_temp) == -1) + printf("TMU is in unknown state, temperature is invalid \n"); + else + printf("Current temperature: %u degrees Celsius \n", cur_temp); + } else { + return CMD_RET_USAGE; + } + + return 0; +} + +U_BOOT_CMD( + tmu, 2, 1, do_tmu, + "Thermal Management Unit\n", + "curtemp - show current CPU temperature in degrees Celsius\n" +);