2 * (C) Copyright 2008 Dmitry Rakhchev, EmCraft Systems, rda@emcraft.com
4 * Developed for DENX Software Engineering GmbH
6 * See file CREDITS for list of people who contributed to this
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 /* There are two tests for dsPIC currently implemented:
28 * 1. dsPIC ready test. Done in board_early_init_f(). Only result verified here.
29 * 2. dsPIC POST result test. This test gets dsPIC POST codes and version.
37 DECLARE_GLOBAL_DATA_PTR;
39 #define DSPIC_POST_ERROR_REG 0x800
40 #define DSPIC_SYS_ERROR_REG 0x802
41 #define DSPIC_SYS_VERSION_REG 0x804
42 #define DSPIC_FW_VERSION_REG 0x808
44 #if CONFIG_POST & CONFIG_SYS_POST_BSPEC1
46 /* Verify that dsPIC ready test done early at hw init passed ok */
47 int dspic_init_post_test(int flags)
49 if (in_be32((void *)CONFIG_SYS_DSPIC_TEST_ADDR) &
50 CONFIG_SYS_DSPIC_TEST_MASK) {
51 post_log("dsPIC init test failed\n");
58 #endif /* CONFIG_POST & CONFIG_SYS_POST_BSPEC1 */
60 #if CONFIG_POST & CONFIG_SYS_POST_BSPEC2
61 /* Read a register from the dsPIC. */
62 int dspic_read(ushort reg, ushort *data)
64 uchar buf[sizeof(*data)];
67 if (i2c_read(CONFIG_SYS_I2C_DSPIC_IO_ADDR, reg, 2, buf, 2))
69 rval = i2c_read(CONFIG_SYS_I2C_DSPIC_IO_ADDR, reg, sizeof(reg),
71 *data = (buf[0] << 8) | buf[1];
76 /* Verify error codes regs, display version */
77 int dspic_post_test(int flags)
84 /* read dspic FW-Version */
85 if (dspic_read(DSPIC_FW_VERSION_REG, &data)) {
86 post_log("dsPIC: failed read FW-Version\n");
89 post_log("dsPIC FW-Version: %u.%u\n",
90 (data >> 8) & 0xFF, data & 0xFF);
93 /* read dspic SYS-Version */
94 if (dspic_read(DSPIC_SYS_VERSION_REG, &data)) {
95 post_log("dsPIC: failed read version\n");
98 post_log("dsPIC SYS-Version: %u.%u\n",
99 (data >> 8) & 0xFF, data & 0xFF);
102 /* read dspic POST error code */
103 if (dspic_read(DSPIC_POST_ERROR_REG, &data)) {
104 post_log("dsPIC: failed read POST code\n");
107 post_log("dsPIC POST-ERROR code: 0x%04X\n", data);
110 /* read dspic SYS error code */
111 if ((data = dspic_read(DSPIC_SYS_ERROR_REG, &data))) {
112 post_log("dsPIC: failed read system error\n");
115 post_log("dsPIC SYS-ERROR code: 0x%04X\n", data);
121 #endif /* CONFIG_POST & CONFIG_SYS_POST_BSPEC2 */