From: Anton Staaf robotboy@chromium.org

Gettime returns the current timer value. If CONFIG_SYS_HZ is defined then the timer value is also converted to seconds.

Tegra20 (SeaBoard) # gettime Timer val: 7754 Seconds : 7 Remainder : 754 sys_hz = 1000

Signed-off-by: Anton Staaf robotboy@chromium.org Signed-off-by: Simon Glass sjg@chromium.org --- README | 1 + common/Makefile | 1 + common/cmd_gettime.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++ include/config_cmd_all.h | 1 + 4 files changed, 59 insertions(+), 0 deletions(-) create mode 100644 common/cmd_gettime.c

diff --git a/README b/README index 22fd6b7..a080225 100644 --- a/README +++ b/README @@ -815,6 +815,7 @@ The following options need to be configured: CONFIG_CMD_FDOS * Dos diskette Support CONFIG_CMD_FLASH flinfo, erase, protect CONFIG_CMD_FPGA FPGA device initialization support + CONFIG_CMD_GETTIME * Get time since boot CONFIG_CMD_GO * the 'go' command (exec code) CONFIG_CMD_GREPENV * search environment CONFIG_CMD_HWFLOW * RTS/CTS hw flow control diff --git a/common/Makefile b/common/Makefile index 9e43322..0fb79ed 100644 --- a/common/Makefile +++ b/common/Makefile @@ -100,6 +100,7 @@ ifdef CONFIG_FPGA COBJS-$(CONFIG_CMD_FPGA) += cmd_fpga.o endif COBJS-$(CONFIG_CMD_FS_GENERIC) += cmd_fs.o +COBJS-$(CONFIG_CMD_GETTIME) += cmd_gettime.o COBJS-$(CONFIG_CMD_GPIO) += cmd_gpio.o COBJS-$(CONFIG_CMD_I2C) += cmd_i2c.o COBJS-$(CONFIG_CMD_IDE) += cmd_ide.o diff --git a/common/cmd_gettime.c b/common/cmd_gettime.c new file mode 100644 index 0000000..d7d36a9 --- /dev/null +++ b/common/cmd_gettime.c @@ -0,0 +1,56 @@ +/* + * Copyright (c) 2011 The Chromium OS Authors. All rights reserved. + * + * Copyright (c) 2009, Code Aurora Forum. All rights reserved. + * + * (C) Copyright 2001 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * 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 + */ + +/* + * Get Timer overflows after 2^32 / CONFIG_SYS_HZ (32Khz) = 131072 sec + */ +#include <common.h> +#include <command.h> + +static int do_gettime(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]) +{ + unsigned long int val = get_timer(0); + +#ifdef CONFIG_SYS_HZ + printf("Timer val: %lu\n", val); + printf("Seconds : %lu\n", val / CONFIG_SYS_HZ); + printf("Remainder : %lu\n", val % CONFIG_SYS_HZ); + printf("sys_hz = %lu\n", (unsigned long int)CONFIG_SYS_HZ); +#else + printf("CONFIG_SYS_HZ not defined"); + printf("Timer Val %lu", val); +#endif + + return 0; +} + +U_BOOT_CMD( + gettime, 1, 1, do_gettime, + "get timer val elapsed,\n", + "get time elapsed from uboot start\n" +); diff --git a/include/config_cmd_all.h b/include/config_cmd_all.h index f434cd0..b87967e 100644 --- a/include/config_cmd_all.h +++ b/include/config_cmd_all.h @@ -40,6 +40,7 @@ #define CONFIG_CMD_FDOS /* Floppy DOS support */ #define CONFIG_CMD_FLASH /* flinfo, erase, protect */ #define CONFIG_CMD_FPGA /* FPGA configuration Support */ +#define CONFIG_CMD_GETTIME /* Get time since boot */ #define CONFIG_CMD_HWFLOW /* RTS/CTS hw flow control */ #define CONFIG_CMD_I2C /* I2C serial bus support */ #define CONFIG_CMD_IDE /* IDE harddisk support */

This code was not guarded with CONFIG_LMB so failed to build on x86.

Signed-off-by: Simon Glass sjg@chromium.org --- common/cmd_bootm.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c index 83fa5d7..2f52cd0 100644 --- a/common/cmd_bootm.c +++ b/common/cmd_bootm.c @@ -537,7 +537,7 @@ int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc, } break; #endif -#if defined(CONFIG_OF_LIBFDT) +#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_LMB) case BOOTM_STATE_FDT: { boot_fdt_add_mem_rsv_regions(&images.lmb,

From: Doug Anderson dianders@chromium.org

This is a useful mechanism any time you have a way to update the saved environment outside of u-boot. This can be a tool like fw_setenv.

Signed-off-by: Doug Anderson dianders@chromium.org Signed-off-by: Simon Glass sjg@chromium.org --- README | 7 +++++++ common/env_common.c | 25 +++++++++++++++++++++++++ 2 files changed, 32 insertions(+), 0 deletions(-)

diff --git a/README b/README index 05c5688..785953f 100644 --- a/README +++ b/README @@ -4098,6 +4098,13 @@ Please note that changes to some configuration parameters may take only effect after the next boot (yes, that's just like Windoze :-).

+If merge_with_default is in the loaded environment, and is not "0", then +the loaded environment will be merged on top of the default environment +instead of just replacing it. This means that your saved environment can +contain only the variables you need to change from the default. This is +useful with fw_setenv. + + Command Line Parsing: =====================

diff --git a/common/env_common.c b/common/env_common.c index 3d3cb70..f7fe7a2 100644 --- a/common/env_common.c +++ b/common/env_common.c @@ -34,6 +34,19 @@

DECLARE_GLOBAL_DATA_PTR;

+/* + * Create a saved enviroment with this env variable set to "1" to merge the + * saved environment on top of the default environment. The idea is that your + * saved environment would just contain variables that you'd like to override + * from the default so that as you update u-boot (w/ potential changes to the + * default) you get all the updates. + * + * This is really most useful when you have a tool like fw_setenv to manage + * your saved environment. Using 'saveenv' to save your environment will saved + * the _merged_ environment (AKA it won't unmerge things). + */ +#define MERGE_WITH_DEFAULT "merge_with_default" + /************************************************************************ * Default settings to be used when no valid environment is found */ @@ -156,7 +169,19 @@ int env_import(const char *buf, int check)

if (himport_r(&env_htab, (char *)ep->data, ENV_SIZE, '\0', 0, 0, NULL, 0 /* do_apply */)) { + char *merge_val; + gd->flags |= GD_FLG_ENV_READY; + merge_val = getenv(MERGE_WITH_DEFAULT); + + if (merge_val != NULL && merge_val[0] != '0') { + set_default_env(""); + himport_r(&env_htab, (char *)ep->data, ENV_SIZE, '\0', + H_NOCLEAR, 0, NULL, 0 /* do_apply */); + hdelete_r(MERGE_WITH_DEFAULT, &env_htab, + 0 /* do_apply */); + puts("Merged saved with default environment\n\n"); + } return 1; }

It is better to use get_timer() by itself now, according to the new timer API.

Signed-off-by: Simon Glass sjg@chromium.org --- common/cmd_time.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/common/cmd_time.c b/common/cmd_time.c index 6dbdbbf..f1891f9 100644 --- a/common/cmd_time.c +++ b/common/cmd_time.c @@ -32,6 +32,7 @@ static int run_command_and_time_it(int flag, int argc, char * const argv[], { cmd_tbl_t *cmdtp = find_cmd(argv[0]); int retval = 0; + ulong start;

if (!cmdtp) { printf("%s: command not found\n", argv[0]); @@ -45,9 +46,9 @@ static int run_command_and_time_it(int flag, int argc, char * const argv[], * boards. We could use the new timer API that Graeme is proposing * so that this piece of code would be arch-independent. */ - *cycles = get_timer_masked(); + start = get_timer(0); retval = cmdtp->cmd(cmdtp, flag, argc, argv); - *cycles = get_timer_masked() - *cycles; + *cycles = get_timer(start);

return retval; }

From: Tom Wai-Hong Tam waihong@chromium.org

This implements a library for accessing EDID data from an LCD panel. This is used to obtain information about the panel such as its resolution and type.

This is a tidied-up version of the original code pulled from https://github.com/ynezz/u-boot-edid.

The changes we made are: - removed bit fields in the struct; - removed endianness cases in the struct; - fixed some wrong definitions; - fixed to fit 80 columns; - fixed some code styles.

Signed-off-by: Tom Wai-Hong Tam waihong@chromium.org Signed-off-by: Simon Glass sjg@chromium.org --- common/Makefile | 1 + common/edid.c | 307 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ include/edid.h | 275 +++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 583 insertions(+), 0 deletions(-) create mode 100644 common/edid.c create mode 100644 include/edid.h

diff --git a/common/Makefile b/common/Makefile index 6f6f0fa..eac38fc 100644 --- a/common/Makefile +++ b/common/Makefile @@ -103,6 +103,7 @@ COBJS-$(CONFIG_CMD_FS_GENERIC) += cmd_fs.o COBJS-$(CONFIG_CMD_GETTIME) += cmd_gettime.o COBJS-$(CONFIG_CMD_GPIO) += cmd_gpio.o COBJS-$(CONFIG_CMD_I2C) += cmd_i2c.o +COBJS-$(CONFIG_I2C_EDID) += edid.o COBJS-$(CONFIG_CMD_IDE) += cmd_ide.o COBJS-$(CONFIG_CMD_IMMAP) += cmd_immap.o COBJS-$(CONFIG_CMD_INI) += cmd_ini.o diff --git a/common/edid.c b/common/edid.c new file mode 100644 index 0000000..c82c298 --- /dev/null +++ b/common/edid.c @@ -0,0 +1,307 @@ +/* + * Copyright (c) 2012 The Chromium OS Authors. + * + * (C) Copyright 2010 + * Petr Stetiar ynezz@true.cz + * + * 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 + * + * Contains stolen code from ddcprobe project which is: + * Copyright (C) Nalin Dahyabhai bigfun@pobox.com + * + */ + +#include <common.h> +#include <edid.h> +#include <linux/ctype.h> +#include <linux/string.h> + +int edid_check_info(struct edid1_info *edid_info) +{ + if ((edid_info == NULL) || (edid_info->version == 0)) + return -1; + + if (memcmp(edid_info->header, "\x0\xff\xff\xff\xff\xff\xff\x0", 8)) + return -1; + + if (edid_info->version == 0xff && edid_info->revision == 0xff) + return -1; + + return 0; +} + +int edid_get_ranges(struct edid1_info *edid, unsigned int *hmin, + unsigned int *hmax, unsigned int *vmin, + unsigned int *vmax) +{ + int i; + struct edid_monitor_descriptor *monitor; + + *hmin = *hmax = *vmin = *vmax = 0; + if (edid_check_info(edid)) + return -1; + + for (i = 0; i < ARRAY_SIZE(edid->monitor_details.descriptor); i++) { + monitor = &edid->monitor_details.descriptor[i]; + if (monitor->type == EDID_MONITOR_DESCRIPTOR_RANGE) { + *hmin = monitor->data.range_data.horizontal_min; + *hmax = monitor->data.range_data.horizontal_max; + *vmin = monitor->data.range_data.vertical_min; + *vmax = monitor->data.range_data.vertical_max; + return 0; + } + } + return -1; +} + +/** + * Snip the tailing whitespace/return of a string. + * + * @param string The string to be snipped + * @return the snipped string + */ +static char *snip(char *string) +{ + char *s; + + /* + * This is always a 13 character buffer + * and it's not always terminated. + */ + string[12] = '\0'; + s = &string[strlen(string) - 1]; + + while (s >= string && (isspace(*s) || *s == '\n' || *s == '\r' || + *s == '\0')) + *(s--) = '\0'; + + return string; +} + +/** + * Print an EDID monitor descriptor block + * + * @param monitor The EDID monitor descriptor block + * @have_timing Modifies to 1 if the desciptor contains timing info + */ +static void edid_print_dtd(struct edid_monitor_descriptor *monitor, + unsigned int *have_timing) +{ + unsigned char *bytes = (unsigned char *)monitor; + struct edid_detailed_timing *timing = + (struct edid_detailed_timing *)monitor; + + if (bytes[0] == 0 && bytes[1] == 0) { + if (monitor->type == EDID_MONITOR_DESCRIPTOR_SERIAL) + printf("Monitor serial number: %s\n", + snip(monitor->data.string)); + else if (monitor->type == EDID_MONITOR_DESCRIPTOR_ASCII) + printf("Monitor ID: %s\n", + snip(monitor->data.string)); + else if (monitor->type == EDID_MONITOR_DESCRIPTOR_NAME) + printf("Monitor name: %s\n", + snip(monitor->data.string)); + else if (monitor->type == EDID_MONITOR_DESCRIPTOR_RANGE) + printf("Monitor range limits, horizontal sync: " + "%d-%d kHz, vertical refresh: " + "%d-%d Hz, max pixel clock: " + "%d MHz\n", + monitor->data.range_data.horizontal_min, + monitor->data.range_data.horizontal_max, + monitor->data.range_data.vertical_min, + monitor->data.range_data.vertical_max, + monitor->data.range_data.pixel_clock_max * 10); + } else { + uint32_t pixclock, h_active, h_blanking, v_active, v_blanking; + uint32_t h_total, v_total, vfreq; + + pixclock = EDID_DETAILED_TIMING_PIXEL_CLOCK(*timing); + h_active = EDID_DETAILED_TIMING_HORIZONTAL_ACTIVE(*timing); + h_blanking = EDID_DETAILED_TIMING_HORIZONTAL_BLANKING(*timing); + v_active = EDID_DETAILED_TIMING_VERTICAL_ACTIVE(*timing); + v_blanking = EDID_DETAILED_TIMING_VERTICAL_BLANKING(*timing); + + h_total = h_active + h_blanking; + v_total = v_active + v_blanking; + if (v_total * h_total) + vfreq = pixclock / (v_total * h_total); + else + vfreq = 1; /* Error case */ + printf("\t%dx%d%c\t%d Hz (detailed)\n", h_active, + v_active, h_active > 1000 ? ' ' : '\t', vfreq); + *have_timing = 1; + } +} + +/** + * Get the manufacturer name from an EDID info. + * + * @param edid_info The EDID info to be printed + * @param name Returns the string of the manufacturer name + */ +static void edid_get_manufacturer_name(struct edid1_info *edid, char *name) +{ + name[0] = EDID1_INFO_MANUFACTURER_NAME_CHAR1(*edid) + 'A' - 1; + name[1] = EDID1_INFO_MANUFACTURER_NAME_CHAR2(*edid) + 'A' - 1; + name[2] = EDID1_INFO_MANUFACTURER_NAME_CHAR3(*edid) + 'A' - 1; + name[3] = '\0'; +} + +void edid_print_info(struct edid1_info *edid_info) +{ + int i; + char manufacturer[4]; + unsigned int have_timing = 0; + uint32_t serial_number; + + if (edid_check_info(edid_info)) { + printf("Not a valid EDID\n"); + return; + } + + printf("EDID version: %d.%d\n", + edid_info->version, edid_info->revision); + + printf("Product ID code: %04x\n", EDID1_INFO_PRODUCT_CODE(*edid_info)); + + edid_get_manufacturer_name(edid_info, manufacturer); + printf("Manufacturer: %s\n", manufacturer); + + serial_number = EDID1_INFO_SERIAL_NUMBER(*edid_info); + if (serial_number != 0xffffffff) { + if (strcmp(manufacturer, "MAG") == 0) + serial_number -= 0x7000000; + if (strcmp(manufacturer, "OQI") == 0) + serial_number -= 456150000; + if (strcmp(manufacturer, "VSC") == 0) + serial_number -= 640000000; + } + printf("Serial number: %08x\n", serial_number); + printf("Manufactured in week: %d year: %d\n", + edid_info->week, edid_info->year + 1990); + + printf("Video input definition: %svoltage level %d%s%s%s%s%s\n", + EDID1_INFO_VIDEO_INPUT_DIGITAL(*edid_info) ? + "digital signal, " : "analog signal, ", + EDID1_INFO_VIDEO_INPUT_VOLTAGE_LEVEL(*edid_info), + EDID1_INFO_VIDEO_INPUT_BLANK_TO_BLACK(*edid_info) ? + ", blank to black" : "", + EDID1_INFO_VIDEO_INPUT_SEPARATE_SYNC(*edid_info) ? + ", separate sync" : "", + EDID1_INFO_VIDEO_INPUT_COMPOSITE_SYNC(*edid_info) ? + ", composite sync" : "", + EDID1_INFO_VIDEO_INPUT_SYNC_ON_GREEN(*edid_info) ? + ", sync on green" : "", + EDID1_INFO_VIDEO_INPUT_SERRATION_V(*edid_info) ? + ", serration v" : ""); + + printf("Monitor is %s\n", + EDID1_INFO_FEATURE_RGB(*edid_info) ? "RGB" : "non-RGB"); + + printf("Maximum visible display size: %d cm x %d cm\n", + edid_info->max_size_horizontal, + edid_info->max_size_vertical); + + printf("Power management features: %s%s, %s%s, %s%s\n", + EDID1_INFO_FEATURE_ACTIVE_OFF(*edid_info) ? + "" : "no ", "active off", + EDID1_INFO_FEATURE_SUSPEND(*edid_info) ? "" : "no ", "suspend", + EDID1_INFO_FEATURE_STANDBY(*edid_info) ? "" : "no ", "standby"); + + printf("Estabilished timings:\n"); + if (EDID1_INFO_ESTABLISHED_TIMING_720X400_70(*edid_info)) + printf("\t720x400\t\t70 Hz (VGA 640x400, IBM)\n"); + if (EDID1_INFO_ESTABLISHED_TIMING_720X400_88(*edid_info)) + printf("\t720x400\t\t88 Hz (XGA2)\n"); + if (EDID1_INFO_ESTABLISHED_TIMING_640X480_60(*edid_info)) + printf("\t640x480\t\t60 Hz (VGA)\n"); + if (EDID1_INFO_ESTABLISHED_TIMING_640X480_67(*edid_info)) + printf("\t640x480\t\t67 Hz (Mac II, Apple)\n"); + if (EDID1_INFO_ESTABLISHED_TIMING_640X480_72(*edid_info)) + printf("\t640x480\t\t72 Hz (VESA)\n"); + if (EDID1_INFO_ESTABLISHED_TIMING_640X480_75(*edid_info)) + printf("\t640x480\t\t75 Hz (VESA)\n"); + if (EDID1_INFO_ESTABLISHED_TIMING_800X600_56(*edid_info)) + printf("\t800x600\t\t56 Hz (VESA)\n"); + if (EDID1_INFO_ESTABLISHED_TIMING_800X600_60(*edid_info)) + printf("\t800x600\t\t60 Hz (VESA)\n"); + if (EDID1_INFO_ESTABLISHED_TIMING_800X600_72(*edid_info)) + printf("\t800x600\t\t72 Hz (VESA)\n"); + if (EDID1_INFO_ESTABLISHED_TIMING_800X600_75(*edid_info)) + printf("\t800x600\t\t75 Hz (VESA)\n"); + if (EDID1_INFO_ESTABLISHED_TIMING_832X624_75(*edid_info)) + printf("\t832x624\t\t75 Hz (Mac II)\n"); + if (EDID1_INFO_ESTABLISHED_TIMING_1024X768_87I(*edid_info)) + printf("\t1024x768\t87 Hz Interlaced (8514A)\n"); + if (EDID1_INFO_ESTABLISHED_TIMING_1024X768_60(*edid_info)) + printf("\t1024x768\t60 Hz (VESA)\n"); + if (EDID1_INFO_ESTABLISHED_TIMING_1024X768_70(*edid_info)) + printf("\t1024x768\t70 Hz (VESA)\n"); + if (EDID1_INFO_ESTABLISHED_TIMING_1024X768_75(*edid_info)) + printf("\t1024x768\t75 Hz (VESA)\n"); + if (EDID1_INFO_ESTABLISHED_TIMING_1280X1024_75(*edid_info)) + printf("\t1280x1024\t75 (VESA)\n"); + if (EDID1_INFO_ESTABLISHED_TIMING_1152X870_75(*edid_info)) + printf("\t1152x870\t75 (Mac II)\n"); + + /* Standard timings. */ + printf("Standard timings:\n"); + for (i = 0; i < ARRAY_SIZE(edid_info->standard_timings); i++) { + unsigned int aspect = 10000; + unsigned int x, y; + unsigned char xres, vfreq; + + xres = EDID1_INFO_STANDARD_TIMING_XRESOLUTION(*edid_info, i); + vfreq = EDID1_INFO_STANDARD_TIMING_VFREQ(*edid_info, i); + if ((xres != vfreq) || + ((xres != 0) && (xres != 1)) || + ((vfreq != 0) && (vfreq != 1))) { + switch (EDID1_INFO_STANDARD_TIMING_ASPECT(*edid_info, + i)) { + case ASPECT_625: + aspect = 6250; + break; + case ASPECT_75: + aspect = 7500; + break; + case ASPECT_8: + aspect = 8000; + break; + case ASPECT_5625: + aspect = 5625; + break; + } + x = (xres + 31) * 8; + y = x * aspect / 10000; + printf("\t%dx%d%c\t%d Hz\n", x, y, + x > 1000 ? ' ' : '\t', (vfreq & 0x3f) + 60); + have_timing = 1; + } + } + + /* Detailed timing information. */ + for (i = 0; i < ARRAY_SIZE(edid_info->monitor_details.descriptor); + i++) { + edid_print_dtd(&edid_info->monitor_details.descriptor[i], + &have_timing); + } + + if (!have_timing) + printf("\tNone\n"); +} diff --git a/include/edid.h b/include/edid.h new file mode 100644 index 0000000..4788de9 --- /dev/null +++ b/include/edid.h @@ -0,0 +1,275 @@ +/* + * Copyright (c) 2012 The Chromium OS Authors. + * + * (C) Copyright 2010 + * Petr Stetiar ynezz@true.cz + * + * 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 + * + * Contains stolen code from ddcprobe project which is: + * Copyright (C) Nalin Dahyabhai bigfun@pobox.com + * + */ + +#ifndef __EDID_H_ +#define __EDID_H_ + +#include <linux/types.h> + +#define GET_BIT(_x, _pos) \ + (((_x) >> (_pos)) & 1) +#define GET_BITS(_x, _pos_msb, _pos_lsb) \ + (((_x) >> (_pos_lsb)) & ((1 << ((_pos_msb) - (_pos_lsb) + 1)) - 1)) + +/* Aspect ratios used in EDID info. */ +enum edid_aspect { + ASPECT_625 = 0, + ASPECT_75, + ASPECT_8, + ASPECT_5625, +}; + +/* Detailed timing information used in EDID v1.x */ +struct edid_detailed_timing { + unsigned char pixel_clock[2]; +#define EDID_DETAILED_TIMING_PIXEL_CLOCK(_x) \ + (((((uint32_t)(_x).pixel_clock[1]) << 8) + \ + (_x).pixel_clock[0]) * 10000) + unsigned char horizontal_active; + unsigned char horizontal_blanking; + unsigned char horizontal_active_blanking_hi; +#define EDID_DETAILED_TIMING_HORIZONTAL_ACTIVE(_x) \ + ((GET_BITS((_x).horizontal_active_blanking_hi, 7, 4) << 8) + \ + (_x).horizontal_active) +#define EDID_DETAILED_TIMING_HORIZONTAL_BLANKING(_x) \ + ((GET_BITS((_x).horizontal_active_blanking_hi, 3, 0) << 8) + \ + (_x).horizontal_blanking) + unsigned char vertical_active; + unsigned char vertical_blanking; + unsigned char vertical_active_blanking_hi; +#define EDID_DETAILED_TIMING_VERTICAL_ACTIVE(_x) \ + ((GET_BITS((_x).vertical_active_blanking_hi, 7, 4) << 8) + \ + (_x).vertical_active) +#define EDID_DETAILED_TIMING_VERTICAL_BLANKING(_x) \ + ((GET_BITS((_x).vertical_active_blanking_hi, 3, 0) << 8) + \ + (_x).vertical_blanking) + unsigned char hsync_offset; + unsigned char hsync_pulse_width; + unsigned char sync_offset_pulse_width; + unsigned char hsync_vsync_offset_pulse_width_hi; +#define EDID_DETAILED_TIMING_HSYNC_OFFSET(_x) \ + ((GET_BITS((_x).hsync_vsync_offset_pulse_width_hi, 7, 6) << 8) + \ + (_x).hsync_offset) +#define EDID_DETAILED_TIMING_HSYNC_PULSE_WIDTH(_x) \ + ((GET_BITS((_x).hsync_vsync_offset_pulse_width_hi, 5, 4) << 8) + \ + (_x).hsync_pulse_width) +#define EDID_DETAILED_TIMING_VSYNC_OFFSET(_x) \ + ((GET_BITS((_x).hsync_vsync_offset_pulse_width_hi, 3, 2) << 4) + \ + GET_BITS((_x).vsync_offset_pulse_width, 7, 4)) +#define EDID_DETAILED_TIMING_VSYNC_PULSE_WIDTH(_x) \ + ((GET_BITS((_x).hsync_vsync_offset_pulse_width_hi, 1, 0) << 4) + \ + GET_BITS((_x).vsync_offset_pulse_width, 3, 0)) + unsigned char himage_size; + unsigned char vimage_size; + unsigned char himage_vimage_size_hi; +#define EDID_DETAILED_TIMING_HIMAGE_SIZE(_x) \ + ((GET_BITS((_x).himage_vimage_size_hi, 7, 4) << 8) + (_x).himage_size) +#define EDID_DETAILED_TIMING_VIMAGE_SIZE(_x) \ + ((GET_BITS((_x).himage_vimage_size_hi, 3, 0) << 8) + (_x).vimage_size) + unsigned char hborder; + unsigned char vborder; + unsigned char flags; +#define EDID_DETAILED_TIMING_FLAG_INTERLACED(_x) \ + GET_BIT((_x).flags, 7) +#define EDID_DETAILED_TIMING_FLAG_STEREO(_x) \ + GET_BITS((_x).flags, 6, 5) +#define EDID_DETAILED_TIMING_FLAG_DIGITAL_COMPOSITE(_x) \ + GET_BITS((_x).flags, 4, 3) +#define EDID_DETAILED_TIMING_FLAG_POLARITY(_x) \ + GET_BITS((_x).flags, 2, 1) +#define EDID_DETAILED_TIMING_FLAG_INTERLEAVED(_x) \ + GET_BIT((_x).flags, 0) +} __attribute__ ((__packed__)); + +enum edid_monitor_descriptor_types { + EDID_MONITOR_DESCRIPTOR_SERIAL = 0xff, + EDID_MONITOR_DESCRIPTOR_ASCII = 0xfe, + EDID_MONITOR_DESCRIPTOR_RANGE = 0xfd, + EDID_MONITOR_DESCRIPTOR_NAME = 0xfc, +}; + +struct edid_monitor_descriptor { + uint16_t zero_flag_1; + unsigned char zero_flag_2; + unsigned char type; + unsigned char zero_flag_3; + union { + char string[13]; + struct { + unsigned char vertical_min; + unsigned char vertical_max; + unsigned char horizontal_min; + unsigned char horizontal_max; + unsigned char pixel_clock_max; + unsigned char gtf_data[8]; + } range_data; + } data; +} __attribute__ ((__packed__)); + +struct edid1_info { + unsigned char header[8]; + unsigned char manufacturer_name[2]; +#define EDID1_INFO_MANUFACTURER_NAME_ZERO(_x) \ + GET_BIT(((_x).manufacturer_name[0]), 7) +#define EDID1_INFO_MANUFACTURER_NAME_CHAR1(_x) \ + GET_BITS(((_x).manufacturer_name[0]), 6, 2) +#define EDID1_INFO_MANUFACTURER_NAME_CHAR2(_x) \ + ((GET_BITS(((_x).manufacturer_name[0]), 1, 0) << 3) + \ + GET_BITS(((_x).manufacturer_name[1]), 7, 5)) +#define EDID1_INFO_MANUFACTURER_NAME_CHAR3(_x) \ + GET_BITS(((_x).manufacturer_name[1]), 4, 0) + unsigned char product_code[2]; +#define EDID1_INFO_PRODUCT_CODE(_x) \ + (((uint16_t)(_x).product_code[1] << 8) + (_x).product_code[0]) + unsigned char serial_number[4]; +#define EDID1_INFO_SERIAL_NUMBER(_x) \ + (((uint32_t)(_x).serial_number[3] << 24) + \ + ((_x).serial_number[2] << 16) + ((_x).serial_number[1] << 8) + \ + (_x).serial_number[0]) + unsigned char week; + unsigned char year; + unsigned char version; + unsigned char revision; + unsigned char video_input_definition; +#define EDID1_INFO_VIDEO_INPUT_DIGITAL(_x) \ + GET_BIT(((_x).video_input_definition), 7) +#define EDID1_INFO_VIDEO_INPUT_VOLTAGE_LEVEL(_x) \ + GET_BITS(((_x).video_input_definition), 6, 5) +#define EDID1_INFO_VIDEO_INPUT_BLANK_TO_BLACK(_x) \ + GET_BIT(((_x).video_input_definition), 4) +#define EDID1_INFO_VIDEO_INPUT_SEPARATE_SYNC(_x) \ + GET_BIT(((_x).video_input_definition), 3) +#define EDID1_INFO_VIDEO_INPUT_COMPOSITE_SYNC(_x) \ + GET_BIT(((_x).video_input_definition), 2) +#define EDID1_INFO_VIDEO_INPUT_SYNC_ON_GREEN(_x) \ + GET_BIT(((_x).video_input_definition), 1) +#define EDID1_INFO_VIDEO_INPUT_SERRATION_V(_x) \ + GET_BIT(((_x).video_input_definition), 0) + unsigned char max_size_horizontal; + unsigned char max_size_vertical; + unsigned char gamma; + unsigned char feature_support; +#define EDID1_INFO_FEATURE_STANDBY(_x) \ + GET_BIT(((_x).feature_support), 7) +#define EDID1_INFO_FEATURE_SUSPEND(_x) \ + GET_BIT(((_x).feature_support), 6) +#define EDID1_INFO_FEATURE_ACTIVE_OFF(_x) \ + GET_BIT(((_x).feature_support), 5) +#define EDID1_INFO_FEATURE_DISPLAY_TYPE(_x) \ + GET_BITS(((_x).feature_support), 4, 3) +#define EDID1_INFO_FEATURE_RGB(_x) \ + GET_BIT(((_x).feature_support), 2) +#define EDID1_INFO_FEATURE_PREFERRED_TIMING_MODE(_x) \ + GET_BIT(((_x).feature_support), 1) +#define EDID1_INFO_FEATURE_DEFAULT_GTF_SUPPORT(_x) \ + GET_BIT(((_x).feature_support), 0) + unsigned char color_characteristics[10]; + unsigned char established_timings[3]; +#define EDID1_INFO_ESTABLISHED_TIMING_720X400_70(_x) \ + GET_BIT(((_x).established_timings[0]), 7) +#define EDID1_INFO_ESTABLISHED_TIMING_720X400_88(_x) \ + GET_BIT(((_x).established_timings[0]), 6) +#define EDID1_INFO_ESTABLISHED_TIMING_640X480_60(_x) \ + GET_BIT(((_x).established_timings[0]), 5) +#define EDID1_INFO_ESTABLISHED_TIMING_640X480_67(_x) \ + GET_BIT(((_x).established_timings[0]), 4) +#define EDID1_INFO_ESTABLISHED_TIMING_640X480_72(_x) \ + GET_BIT(((_x).established_timings[0]), 3) +#define EDID1_INFO_ESTABLISHED_TIMING_640X480_75(_x) \ + GET_BIT(((_x).established_timings[0]), 2) +#define EDID1_INFO_ESTABLISHED_TIMING_800X600_56(_x) \ + GET_BIT(((_x).established_timings[0]), 1) +#define EDID1_INFO_ESTABLISHED_TIMING_800X600_60(_x) \ + GET_BIT(((_x).established_timings[0]), 0) +#define EDID1_INFO_ESTABLISHED_TIMING_800X600_72(_x) \ + GET_BIT(((_x).established_timings[1]), 7) +#define EDID1_INFO_ESTABLISHED_TIMING_800X600_75(_x) \ + GET_BIT(((_x).established_timings[1]), 6) +#define EDID1_INFO_ESTABLISHED_TIMING_832X624_75(_x) \ + GET_BIT(((_x).established_timings[1]), 5) +#define EDID1_INFO_ESTABLISHED_TIMING_1024X768_87I(_x) \ + GET_BIT(((_x).established_timings[1]), 4) +#define EDID1_INFO_ESTABLISHED_TIMING_1024X768_60(_x) \ + GET_BIT(((_x).established_timings[1]), 3) +#define EDID1_INFO_ESTABLISHED_TIMING_1024X768_70(_x) \ + GET_BIT(((_x).established_timings[1]), 2) +#define EDID1_INFO_ESTABLISHED_TIMING_1024X768_75(_x) \ + GET_BIT(((_x).established_timings[1]), 1) +#define EDID1_INFO_ESTABLISHED_TIMING_1280X1024_75(_x) \ + GET_BIT(((_x).established_timings[1]), 0) +#define EDID1_INFO_ESTABLISHED_TIMING_1152X870_75(_x) \ + GET_BIT(((_x).established_timings[2]), 7) + struct { + unsigned char xresolution; + unsigned char aspect_vfreq; + } __attribute__((__packed__)) standard_timings[8]; +#define EDID1_INFO_STANDARD_TIMING_XRESOLUTION(_x, _i) \ + (((_x).standard_timings[_i]).xresolution) +#define EDID1_INFO_STANDARD_TIMING_ASPECT(_x, _i) \ + GET_BITS(((_x).standard_timings[_i].aspect_vfreq), 7, 6) +#define EDID1_INFO_STANDARD_TIMING_VFREQ(_x, _i) \ + GET_BITS(((_x).standard_timings[_i].aspect_vfreq), 5, 0) + union { + unsigned char timing[72]; + struct edid_monitor_descriptor descriptor[4]; + } monitor_details; + unsigned char extension_flag; + unsigned char checksum; +} __attribute__ ((__packed__)); + +/** + * Print the EDID info. + * + * @param edid_info The EDID info to be printed + */ +void edid_print_info(struct edid1_info *edid_info); + +/** + * Check the EDID info. + * + * @param info The EDID info to be checked + * @return 0 on valid, or -1 on invalid + */ +int edid_check_info(struct edid1_info *info); + +/** + * Get the horizontal and vertical rate ranges of the monitor. + * + * @param edid The EDID info + * @param hmin Returns the minimum horizontal rate + * @param hmax Returns the maxium horizontal rate + * @param vmin Returns the minimum vertical rate + * @param vmax Returns the maxium vertical rate + * @return 0 on success, or -1 on error + */ +int edid_get_ranges(struct edid1_info *edid, unsigned int *hmin, + unsigned int *hmax, unsigned int *vmin, + unsigned int *vmax); + +#endif /* __EDID_H_ */

From: Tom Wai-Hong Tam waihong@chromium.org

This function can be used for LCDs as well as monitors.

Signed-off-by: Tom Wai-Hong Tam waihong@chromium.org Signed-off-by: Simon Glass sjg@chromium.org --- common/fdt_support.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/common/fdt_support.c b/common/fdt_support.c index 963ea90..6b9fa05 100644 --- a/common/fdt_support.c +++ b/common/fdt_support.c @@ -1315,7 +1315,7 @@ int fdt_set_status_by_alias(void *fdt, const char* alias, return fdt_set_node_status(fdt, offset, status, error_code); }

-#if defined(CONFIG_VIDEO) +#if defined(CONFIG_VIDEO) || defined(CONFIG_LCD) int fdt_add_edid(void *blob, const char *compat, unsigned char *edid_buf) { int noff;

From: Anton Staaf robotboy@chromium.org

Move the overwrite_console function call to before the search for the console devices. This lets the board specific function replace the environment variables and have that picked up by the console code.

Signed-off-by: Simon Glass sjg@chromium.org --- common/console.c | 15 ++++++++++++--- 1 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/common/console.c b/common/console.c index 1177f7d..831897b 100644 --- a/common/console.c +++ b/common/console.c @@ -1,4 +1,6 @@ /* + * Copyright (c) 2009, Code Aurora Forum. All rights reserved. + * * (C) Copyright 2000 * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it * @@ -622,6 +624,7 @@ int console_init_r(void) { char *stdinname, *stdoutname, *stderrname; struct stdio_dev *inputdev = NULL, *outputdev = NULL, *errdev = NULL; + int overwrite_console_retval; #ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE int i; #endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */ @@ -636,13 +639,19 @@ int console_init_r(void) gd->jt[XF_puts] = serial_puts; gd->jt[XF_printf] = serial_printf;

- /* stdin stdout and stderr are in environment */ - /* scan for it */ + /* + * stdin stdout and stderr are in environment. + * Call OVERWRITE_CONSOLE function before scanning for stdio, stdout, + * stderr to get latest pointer after update. + * (getenv() returns NULL if var not present) + */ + overwrite_console_retval = OVERWRITE_CONSOLE; stdinname = getenv("stdin"); stdoutname = getenv("stdout"); stderrname = getenv("stderr");

- if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */ + /* if not overwritten by config switch */ + if (overwrite_console_retval == 0) { inputdev = search_device(DEV_FLAGS_INPUT, stdinname); outputdev = search_device(DEV_FLAGS_OUTPUT, stdoutname); errdev = search_device(DEV_FLAGS_OUTPUT, stderrname);

From: Vadim Bendebury vbendeb@chromium.org

Provide u-boot console functions to access IO space registers. A no thrills implementation, accessing one register at a time.

For example: boot > iod 80 0080: 00000094 boot > iod.w 80 0080: 0094 boot > iod.b 80 0080: 94 boot > iow.b 0x80 12 boot > iod 0x80 0080: 00000012

Signed-off-by: Vadim Bendebury vbendeb@chromium.org Signed-off-by: Simon Glass sjg@chromium.org --- common/Makefile | 1 + common/cmd_io.c | 93 ++++++++++++++++++++++++++++++++++++++++++++++ include/command.h | 8 ++-- include/config_cmd_all.h | 2 + 4 files changed, 100 insertions(+), 4 deletions(-) create mode 100644 common/cmd_io.c

diff --git a/common/Makefile b/common/Makefile index eac38fc..d8cdca1 100644 --- a/common/Makefile +++ b/common/Makefile @@ -119,6 +119,7 @@ COBJS-$(CONFIG_LOGBUFFER) += cmd_log.o COBJS-$(CONFIG_ID_EEPROM) += cmd_mac.o COBJS-$(CONFIG_CMD_MD5SUM) += cmd_md5sum.o COBJS-$(CONFIG_CMD_MEMORY) += cmd_mem.o +COBJS-$(CONFIG_CMD_IO) += cmd_io.o COBJS-$(CONFIG_CMD_MFSL) += cmd_mfsl.o COBJS-$(CONFIG_MII) += miiphyutil.o COBJS-$(CONFIG_CMD_MII) += miiphyutil.o diff --git a/common/cmd_io.c b/common/cmd_io.c new file mode 100644 index 0000000..6450cb5 --- /dev/null +++ b/common/cmd_io.c @@ -0,0 +1,93 @@ +/* + * Copyright (c) 2012 The Chromium OS Authors. + * + * 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 + */ + +/* + * IO space access commands. + */ + +#include <common.h> +#include <command.h> +#include <asm/io.h> + +/* + * IO Display + * + * Syntax: + * iod{.b, .w, .l} {addr} + */ +int do_io_iod(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) +{ + ulong addr; + int size; + + if (argc != 2) + return CMD_RET_USAGE; + + size = cmd_get_data_size(argv[0], 4); + if (size < 0) + return 1; + + addr = simple_strtoul(argv[1], NULL, 16); + + printf("%04x: ", (u16) addr); + + if (size == 4) + printf("%08x\n", inl(addr)); + else if (size == 2) + printf("%04x\n", inw(addr)); + else + printf("%02x\n", inb(addr)); + + return 0; +} + +int do_io_iow(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) +{ + ulong addr, size, val; + + if (argc != 3) + return CMD_RET_USAGE; + + size = cmd_get_data_size(argv[0], 4); + if (size < 0) + return 1; + + addr = simple_strtoul(argv[1], NULL, 16); + val = simple_strtoul(argv[2], NULL, 16); + + if (size == 4) + outl((u32) val, addr); + else if (size == 2) + outw((u16) val, addr); + else + outb((u8) val, addr); + + return 0; +} + +/**************************************************/ +U_BOOT_CMD(iod, 2, 0, do_io_iod, + "IO space display", "[.b, .w, .l] address [# of objects]"); + +U_BOOT_CMD(iow, 3, 0, do_io_iow, + "IO space modify (auto-incrementing address)", + "[.b, .w, .l] address"); diff --git a/include/command.h b/include/command.h index 10bc260..476e7cf 100644 --- a/include/command.h +++ b/include/command.h @@ -89,10 +89,10 @@ extern int cmd_auto_complete(const char *const prompt, char *buf, int *np, int * */

#if defined(CONFIG_CMD_MEMORY) \ - || defined(CONFIG_CMD_I2C) \ - || defined(CONFIG_CMD_ITEST) \ - || defined(CONFIG_CMD_PCI) \ - || defined(CONFIG_CMD_PORTIO) + || defined(CONFIG_CMD_I2C) \ + || defined(CONFIG_CMD_ITEST) \ + || defined(CONFIG_CMD_PCI) \ + || defined(CONFIG_CMD_PORTIO) #define CMD_DATA_SIZE extern int cmd_get_data_size(char* arg, int default_size); #endif diff --git a/include/config_cmd_all.h b/include/config_cmd_all.h index efd17e6..500b5cd 100644 --- a/include/config_cmd_all.h +++ b/include/config_cmd_all.h @@ -42,11 +42,13 @@ #define CONFIG_CMD_FPGA /* FPGA configuration Support */ #define CONFIG_CMD_GETTIME /* Get time since boot */ #define CONFIG_CMD_HWFLOW /* RTS/CTS hw flow control */ +#define CONFIG_CMD_IO /* Command to access IO ports */ #define CONFIG_CMD_I2C /* I2C serial bus support */ #define CONFIG_CMD_IDE /* IDE harddisk support */ #define CONFIG_CMD_IMI /* iminfo */ #define CONFIG_CMD_IMLS /* List all found images */ #define CONFIG_CMD_IMMAP /* IMMR dump support */ +#define CONFIG_CMD_IO /* Access to X86 IO space */ #define CONFIG_CMD_IRQ /* irqinfo */ #define CONFIG_CMD_ITEST /* Integer (and string) test */ #define CONFIG_CMD_JFFS2 /* JFFS2 Support */

From: Luigi Semenzato semenzato@chromium.org

Add a simple command to stress-test a TPM (Trusted Platform Module).

Signed-off-by: Luigi Semenzato semenzato@chromium.org

Commit-Ready: Stefan Reinauer reinauer@google.com Signed-off-by: Simon Glass sjg@chromium.org --- common/cmd_tpm.c | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++--- 1 files changed, 87 insertions(+), 6 deletions(-)

diff --git a/common/cmd_tpm.c b/common/cmd_tpm.c index 6f5cd48..0970a6f 100644 --- a/common/cmd_tpm.c +++ b/common/cmd_tpm.c @@ -63,19 +63,68 @@ static int tpm_process(int argc, char * const argv[], cmd_tbl_t *cmdtp) return rv; }

-static int do_tpm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +#define CHECK(exp) do { \ + int _rv = exp; \ + if (_rv) { \ + printf("CHECK: %s %d %x\n", #exp, __LINE__, _rv);\ + } \ + } while (0) + +static int tpm_process_stress(int repeat_count) { + int i; int rv = 0; + u8 request[] = {0x0, 0xc1, + 0x0, 0x0, 0x0, 0x16, + 0x0, 0x0, 0x0, 0x65, + 0x0, 0x0, 0x0, 0x4, + 0x0, 0x0, 0x0, 0x4, + 0x0, 0x0, 0x1, 0x9}; + u8 response[MAX_TRANSACTION_SIZE]; + u32 rlength = MAX_TRANSACTION_SIZE; + + CHECK(tis_init()); + + for (i = 0; i < repeat_count; i++) { + CHECK(tis_open()); + rv = tis_sendrecv(request, sizeof(request), response, &rlength); + if (rv) { + printf("tpm test failed at step %d with 0x%x\n", i, rv); + CHECK(tis_close()); + break; + } + CHECK(tis_close()); + if ((response[6] || response[7] || response[8] || response[9]) + && response[9] != 0x26) { + /* Ignore postinit errors */ + printf("tpm command failed at step %d\n" + "tpm error code: %02x%02x%02x%02x\n", i, + response[6], response[7], + response[8], response[9]); + rv = -1; + break; + } + } + return rv; +}

- /* - * Verify that in case it is present, the first argument, it is - * exactly one character in size. - */ - if (argc < 7) { + +static int do_tpm_many(cmd_tbl_t *cmdtp, int flag, + int argc, char * const argv[], int repeat_count) + +{ + int rv = 0; + + if (argc < 7 && repeat_count == 0) { puts("command should be at least six bytes in size\n"); return -1; }

+ if (repeat_count > 0) { + rv = tpm_process_stress(repeat_count); + return rv; + } + if (tis_init()) { puts("tis_init() failed!\n"); return -1; @@ -96,8 +145,40 @@ static int do_tpm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) return rv; }

+ +static int do_tpm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + return do_tpm_many(cmdtp, flag, argc, argv, 0); +} + + U_BOOT_CMD(tpm, MAX_TRANSACTION_SIZE, 1, do_tpm, "<byte> [<byte> ...] - write data and read response", "send arbitrary data (at least 6 bytes) to the TPM " "device and read the response" ); + +static int do_tpm_stress(cmd_tbl_t *cmdtp, int flag, + int argc, char * const argv[]) +{ + long unsigned int n; + int rv; + + if (argc != 2) { + puts("usage: tpm_stress <count>\n"); + return -1; + } + + rv = strict_strtoul(argv[1], 10, &n); + if (rv) { + puts("tpm_stress: bad count"); + return -1; + } + + return do_tpm_many(cmdtp, flag, argc, argv, n); +} + +U_BOOT_CMD(tpm_stress, 2, 1, do_tpm_stress, + "<n> - stress-test communication with TPM", + "Repeat a TPM transaction (request-response) N times" +);