2008-10-15 16:39:08 +09:00
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/*
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* (C) Copyright 2008
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* Heiko Schocher, DENX Software Engineering, hs@denx.de.
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*
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2011-06-06 07:22:18 +09:00
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* (C) Copyright 2011
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* Holger Brunck, Keymile GmbH Hannover, holger.brunck@keymile.com
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*
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2013-07-08 16:37:19 +09:00
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* SPDX-License-Identifier: GPL-2.0+
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2008-10-15 16:39:08 +09:00
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*/
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#include <common.h>
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#include <ioports.h>
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2011-05-04 10:47:30 +09:00
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#include <command.h>
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2008-10-15 16:39:08 +09:00
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#include <malloc.h>
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2014-04-11 11:01:24 +09:00
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#include <cli_hush.h>
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2008-11-21 16:29:40 +09:00
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#include <net.h>
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2010-02-18 16:08:25 +09:00
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#include <netdev.h>
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2008-11-21 16:29:40 +09:00
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#include <asm/io.h>
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2011-05-13 04:59:22 +09:00
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#include <linux/ctype.h>
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2008-10-15 16:39:08 +09:00
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2012-05-04 17:55:58 +09:00
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#if defined(CONFIG_POST)
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#include "post.h"
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#endif
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2011-06-06 07:22:18 +09:00
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#include "common.h"
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2008-10-15 16:39:08 +09:00
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#include <i2c.h>
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2010-04-26 20:07:28 +09:00
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DECLARE_GLOBAL_DATA_PTR;
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2011-03-08 18:51:15 +09:00
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2010-04-26 20:07:28 +09:00
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/*
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* Set Keymile specific environment variables
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* Currently only some memory layout variables are calculated here
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* ... ------------------------------------------------
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* ... |@rootfsaddr |@pnvramaddr |@varaddr |@reserved |@END_OF_RAM
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* ... |<------------------- pram ------------------->|
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* ... ------------------------------------------------
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* @END_OF_RAM: denotes the RAM size
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* @pnvramaddr: Startadress of pseudo non volatile RAM in hex
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* @pram : preserved ram size in k
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* @varaddr : startadress for /var mounted into RAM
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*/
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int set_km_env(void)
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{
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uchar buf[32];
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unsigned int pnvramaddr;
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unsigned int pram;
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unsigned int varaddr;
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2011-09-14 08:06:11 +09:00
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unsigned int kernelmem;
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char *p;
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unsigned long rootfssize = 0;
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2010-04-26 20:07:28 +09:00
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pnvramaddr = gd->ram_size - CONFIG_KM_RESERVED_PRAM - CONFIG_KM_PHRAM
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- CONFIG_KM_PNVRAM;
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sprintf((char *)buf, "0x%x", pnvramaddr);
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2017-08-04 03:22:09 +09:00
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env_set("pnvramaddr", (char *)buf);
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2010-04-26 20:07:28 +09:00
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2016-07-16 02:44:45 +09:00
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/* try to read rootfssize (ram image) from environment */
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2011-09-14 08:06:11 +09:00
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p = getenv("rootfssize");
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if (p != NULL)
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strict_strtoul(p, 16, &rootfssize);
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pram = (rootfssize + CONFIG_KM_RESERVED_PRAM + CONFIG_KM_PHRAM +
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CONFIG_KM_PNVRAM) / 0x400;
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2010-04-26 20:07:28 +09:00
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sprintf((char *)buf, "0x%x", pram);
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2017-08-04 03:22:09 +09:00
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env_set("pram", (char *)buf);
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2010-04-26 20:07:28 +09:00
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varaddr = gd->ram_size - CONFIG_KM_RESERVED_PRAM - CONFIG_KM_PHRAM;
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sprintf((char *)buf, "0x%x", varaddr);
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2017-08-04 03:22:09 +09:00
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env_set("varaddr", (char *)buf);
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2011-09-14 08:06:11 +09:00
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kernelmem = gd->ram_size - 0x400 * pram;
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sprintf((char *)buf, "0x%x", kernelmem);
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2017-08-04 03:22:09 +09:00
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env_set("kernelmem", (char *)buf);
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2011-09-14 08:06:11 +09:00
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2010-04-26 20:07:28 +09:00
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return 0;
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}
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2011-09-14 17:54:12 +09:00
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#if defined(CONFIG_SYS_I2C_INIT_BOARD)
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2011-03-08 18:51:15 +09:00
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static void i2c_write_start_seq(void)
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2008-10-15 16:39:08 +09:00
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{
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2011-03-16 00:52:29 +09:00
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set_sda(1);
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udelay(DELAY_HALF_PERIOD);
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set_scl(1);
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udelay(DELAY_HALF_PERIOD);
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set_sda(0);
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udelay(DELAY_HALF_PERIOD);
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set_scl(0);
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udelay(DELAY_HALF_PERIOD);
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2008-10-15 16:39:08 +09:00
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}
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2011-03-16 00:52:29 +09:00
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/*
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* I2C is a synchronous protocol and resets of the processor in the middle
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* of an access can block the I2C Bus until a powerdown of the full unit is
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* done. This function toggles the SCL until the SCL and SCA line are
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* released, but max. 16 times, after this a I2C start-sequence is sent.
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* This I2C Deblocking mechanism was developed by Keymile in association
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* with Anatech and Atmel in 1998.
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2008-10-15 16:39:08 +09:00
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*/
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2011-06-06 07:22:18 +09:00
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int i2c_make_abort(void)
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2008-10-15 16:39:08 +09:00
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{
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int scl_state = 0;
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int sda_state = 0;
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int i = 0;
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int ret = 0;
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2011-03-16 00:52:29 +09:00
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if (!get_sda()) {
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2008-10-15 16:39:08 +09:00
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ret = -1;
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while (i < 16) {
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i++;
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2011-03-16 00:52:29 +09:00
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set_scl(0);
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udelay(DELAY_ABORT_SEQ);
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set_scl(1);
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udelay(DELAY_ABORT_SEQ);
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scl_state = get_scl();
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sda_state = get_sda();
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2008-10-15 16:39:08 +09:00
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if (scl_state && sda_state) {
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ret = 0;
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break;
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}
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}
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}
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2011-03-16 00:52:29 +09:00
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if (ret == 0)
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for (i = 0; i < 5; i++)
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2011-03-08 18:51:15 +09:00
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i2c_write_start_seq();
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2011-03-16 00:52:29 +09:00
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2011-03-08 18:51:15 +09:00
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/* respect stop setup time */
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udelay(DELAY_ABORT_SEQ);
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set_scl(1);
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udelay(DELAY_ABORT_SEQ);
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set_sda(1);
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2011-03-16 00:52:29 +09:00
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get_sda();
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2011-03-08 18:51:15 +09:00
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2008-10-15 16:39:08 +09:00
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return ret;
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}
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2011-03-08 18:51:15 +09:00
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/**
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* i2c_init_board - reset i2c bus. When the board is powercycled during a
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* bus transfer it might hang; for details see doc/I2C_Edge_Conditions.
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*/
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void i2c_init_board(void)
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{
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2008-10-15 16:39:08 +09:00
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/* Now run the AbortSequence() */
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2011-03-16 00:52:29 +09:00
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i2c_make_abort();
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2008-10-15 16:39:08 +09:00
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}
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2011-09-14 17:54:12 +09:00
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#endif
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2013-10-18 18:47:18 +09:00
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#if defined(CONFIG_KM_COMMON_ETH_INIT)
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2011-03-16 00:52:29 +09:00
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int board_eth_init(bd_t *bis)
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2008-11-21 16:29:40 +09:00
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{
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2011-03-16 00:52:29 +09:00
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if (ethernet_present())
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2010-02-18 16:08:25 +09:00
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return cpu_eth_init(bis);
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return -1;
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2008-11-21 16:29:40 +09:00
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}
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2013-10-18 18:47:18 +09:00
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#endif
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2011-05-04 10:47:30 +09:00
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/*
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* do_setboardid command
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* read out the board id and the hw key from the intventory EEPROM and set
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* this values as environment variables.
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*/
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static int do_setboardid(cmd_tbl_t *cmdtp, int flag, int argc,
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char *const argv[])
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{
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unsigned char buf[32];
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char *p;
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p = get_local_var("IVM_BoardId");
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if (p == NULL) {
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printf("can't get the IVM_Boardid\n");
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return 1;
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}
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2015-12-30 22:05:58 +09:00
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strcpy((char *)buf, p);
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2017-08-04 03:22:09 +09:00
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env_set("boardid", (char *)buf);
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2011-07-05 07:23:59 +09:00
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printf("set boardid=%s\n", buf);
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2011-05-04 10:47:30 +09:00
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p = get_local_var("IVM_HWKey");
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if (p == NULL) {
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printf("can't get the IVM_HWKey\n");
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return 1;
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}
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2015-12-30 22:05:58 +09:00
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strcpy((char *)buf, p);
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2017-08-04 03:22:09 +09:00
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env_set("hwkey", (char *)buf);
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2011-07-05 07:23:59 +09:00
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printf("set hwkey=%s\n", buf);
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printf("Execute manually saveenv for persistent storage.\n");
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2011-05-04 10:47:30 +09:00
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return 0;
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}
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U_BOOT_CMD(km_setboardid, 1, 0, do_setboardid, "setboardid", "read out bid and "
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"hwkey from IVM and set in environment");
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2011-05-13 04:59:22 +09:00
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/*
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* command km_checkbidhwk
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* if "boardid" and "hwkey" are not already set in the environment, do:
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* if a "boardIdListHex" exists in the environment:
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* - read ivm data for boardid and hwkey
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* - compare each entry of the boardIdListHex with the
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* IVM data:
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* if match:
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* set environment variables boardid, boardId,
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* hwkey, hwKey to the found values
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* both (boardid and boardId) are set because
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* they might be used differently in the
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* application and in the init scripts (?)
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* return 0 in case of match, 1 if not match or error
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*/
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2013-05-06 22:02:40 +09:00
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static int do_checkboardidhwk(cmd_tbl_t *cmdtp, int flag, int argc,
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2011-05-13 04:59:22 +09:00
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char *const argv[])
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{
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unsigned long ivmbid = 0, ivmhwkey = 0;
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unsigned long envbid = 0, envhwkey = 0;
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char *p;
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int verbose = argc > 1 && *argv[1] == 'v';
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int rc = 0;
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/*
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* first read out the real inventory values, these values are
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* already stored in the local hush variables
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*/
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p = get_local_var("IVM_BoardId");
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if (p == NULL) {
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printf("can't get the IVM_Boardid\n");
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return 1;
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}
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rc = strict_strtoul(p, 16, &ivmbid);
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p = get_local_var("IVM_HWKey");
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if (p == NULL) {
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printf("can't get the IVM_HWKey\n");
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return 1;
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}
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rc = strict_strtoul(p, 16, &ivmhwkey);
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if (!ivmbid || !ivmhwkey) {
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printf("Error: IVM_BoardId and/or IVM_HWKey not set!\n");
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return rc;
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}
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/* now try to read values from environment if available */
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p = getenv("boardid");
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if (p != NULL)
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rc = strict_strtoul(p, 16, &envbid);
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p = getenv("hwkey");
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if (p != NULL)
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rc = strict_strtoul(p, 16, &envhwkey);
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if (rc != 0) {
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printf("strict_strtoul returns error: %d", rc);
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return rc;
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}
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if (!envbid || !envhwkey) {
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/*
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* BoardId/HWkey not available in the environment, so try the
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* environment variable for BoardId/HWkey list
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*/
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char *bidhwklist = getenv("boardIdListHex");
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if (bidhwklist) {
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int found = 0;
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char *rest = bidhwklist;
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char *endp;
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if (verbose) {
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printf("IVM_BoardId: %ld, IVM_HWKey=%ld\n",
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ivmbid, ivmhwkey);
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printf("boardIdHwKeyList: %s\n",
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bidhwklist);
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}
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while (!found) {
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/* loop over each bid/hwkey pair in the list */
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unsigned long bid = 0;
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unsigned long hwkey = 0;
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while (*rest && !isxdigit(*rest))
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rest++;
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/*
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* use simple_strtoul because we need &end and
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* we know we got non numeric char at the end
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*/
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bid = simple_strtoul(rest, &endp, 16);
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/* BoardId and HWkey are separated with a "_" */
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if (*endp == '_') {
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rest = endp + 1;
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/*
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* use simple_strtoul because we need
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* &end
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*/
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hwkey = simple_strtoul(rest, &endp, 16);
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rest = endp;
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while (*rest && !isxdigit(*rest))
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rest++;
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}
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if ((!bid) || (!hwkey)) {
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/* end of list */
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break;
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}
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if (verbose) {
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printf("trying bid=0x%lX, hwkey=%ld\n",
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bid, hwkey);
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}
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/*
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* Compare the values of the found entry in the
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* list with the valid values which are stored
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* in the inventory eeprom. If they are equal
|
2011-06-06 07:22:17 +09:00
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* set the values in environment variables.
|
2011-05-13 04:59:22 +09:00
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*/
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if ((bid == ivmbid) && (hwkey == ivmhwkey)) {
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char buf[10];
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found = 1;
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envbid = bid;
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envhwkey = hwkey;
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sprintf(buf, "%lx", bid);
|
2017-08-04 03:22:09 +09:00
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env_set("boardid", buf);
|
2011-05-13 04:59:22 +09:00
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sprintf(buf, "%lx", hwkey);
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2017-08-04 03:22:09 +09:00
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env_set("hwkey", buf);
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2011-05-13 04:59:22 +09:00
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}
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} /* end while( ! found ) */
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}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* compare now the values */
|
|
|
|
if ((ivmbid == envbid) && (ivmhwkey == envhwkey)) {
|
|
|
|
printf("boardid=0x%3lX, hwkey=%ld\n", envbid, envhwkey);
|
|
|
|
rc = 0; /* match */
|
|
|
|
} else {
|
2011-07-05 07:23:59 +09:00
|
|
|
printf("Error: env boardid=0x%3lX, hwkey=%ld\n", envbid,
|
|
|
|
envhwkey);
|
2011-05-13 04:59:22 +09:00
|
|
|
printf(" IVM bId=0x%3lX, hwKey=%ld\n", ivmbid, ivmhwkey);
|
|
|
|
rc = 1; /* don't match */
|
|
|
|
}
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
U_BOOT_CMD(km_checkbidhwk, 2, 0, do_checkboardidhwk,
|
|
|
|
"check boardid and hwkey",
|
|
|
|
"[v]\n - check environment parameter "\
|
|
|
|
"\"boardIdListHex\" against stored boardid and hwkey "\
|
|
|
|
"from the IVM\n v: verbose output"
|
|
|
|
);
|
2012-05-04 17:55:58 +09:00
|
|
|
|
|
|
|
/*
|
|
|
|
* command km_checktestboot
|
|
|
|
* if the testpin of the board is asserted, return 1
|
|
|
|
* * else return 0
|
|
|
|
*/
|
2013-05-06 22:02:40 +09:00
|
|
|
static int do_checktestboot(cmd_tbl_t *cmdtp, int flag, int argc,
|
2012-05-04 17:55:58 +09:00
|
|
|
char *const argv[])
|
|
|
|
{
|
|
|
|
int testpin = 0;
|
|
|
|
char *s = NULL;
|
|
|
|
int testboot = 0;
|
|
|
|
int verbose = argc > 1 && *argv[1] == 'v';
|
|
|
|
|
|
|
|
#if defined(CONFIG_POST)
|
|
|
|
testpin = post_hotkeys_pressed();
|
2015-11-17 18:53:26 +09:00
|
|
|
#endif
|
|
|
|
s = getenv("test_bank");
|
2012-05-04 17:55:58 +09:00
|
|
|
/* when test_bank is not set, act as if testpin is not asserted */
|
|
|
|
testboot = (testpin != 0) && (s);
|
|
|
|
if (verbose) {
|
|
|
|
printf("testpin = %d\n", testpin);
|
2014-11-06 22:02:57 +09:00
|
|
|
/* cppcheck-suppress nullPointer */
|
2012-05-04 17:55:58 +09:00
|
|
|
printf("test_bank = %s\n", s ? s : "not set");
|
|
|
|
printf("boot test app : %s\n", (testboot) ? "yes" : "no");
|
|
|
|
}
|
|
|
|
/* return 0 means: testboot, therefore we need the inversion */
|
|
|
|
return !testboot;
|
|
|
|
}
|
|
|
|
|
|
|
|
U_BOOT_CMD(km_checktestboot, 2, 0, do_checktestboot,
|
|
|
|
"check if testpin is asserted",
|
|
|
|
"[v]\n v - verbose output"
|
|
|
|
);
|