mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-22 01:48:52 +09:00
![Wolfgang Denk](/assets/img/avatar_default.png)
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
106 lines
2.4 KiB
C
106 lines
2.4 KiB
C
/*
|
|
* (C) Copyright 2008 Dmitry Rakhchev, EmCraft Systems, rda@emcraft.com
|
|
*
|
|
* Developed for DENX Software Engineering GmbH
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
|
|
/* There are two tests for dsPIC currently implemented:
|
|
* 1. dsPIC ready test. Done in board_early_init_f(). Only result verified here.
|
|
* 2. dsPIC POST result test. This test gets dsPIC POST codes and version.
|
|
*/
|
|
|
|
#include <post.h>
|
|
|
|
#include <i2c.h>
|
|
#include <asm/io.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#define DSPIC_POST_ERROR_REG 0x800
|
|
#define DSPIC_SYS_ERROR_REG 0x802
|
|
#define DSPIC_SYS_VERSION_REG 0x804
|
|
#define DSPIC_FW_VERSION_REG 0x808
|
|
|
|
#if CONFIG_POST & CONFIG_SYS_POST_BSPEC1
|
|
|
|
/* Verify that dsPIC ready test done early at hw init passed ok */
|
|
int dspic_init_post_test(int flags)
|
|
{
|
|
if (in_be32((void *)CONFIG_SYS_DSPIC_TEST_ADDR) &
|
|
CONFIG_SYS_DSPIC_TEST_MASK) {
|
|
post_log("dsPIC init test failed\n");
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CONFIG_POST & CONFIG_SYS_POST_BSPEC1 */
|
|
|
|
#if CONFIG_POST & CONFIG_SYS_POST_BSPEC2
|
|
/* Read a register from the dsPIC. */
|
|
int dspic_read(ushort reg, ushort *data)
|
|
{
|
|
uchar buf[sizeof(*data)];
|
|
int rval;
|
|
|
|
if (i2c_read(CONFIG_SYS_I2C_DSPIC_IO_ADDR, reg, 2, buf, 2))
|
|
return -1;
|
|
rval = i2c_read(CONFIG_SYS_I2C_DSPIC_IO_ADDR, reg, sizeof(reg),
|
|
buf, sizeof(*data));
|
|
*data = (buf[0] << 8) | buf[1];
|
|
|
|
return rval;
|
|
}
|
|
|
|
/* Verify error codes regs, display version */
|
|
int dspic_post_test(int flags)
|
|
{
|
|
ushort data;
|
|
int ret = 0;
|
|
|
|
post_log("\n");
|
|
|
|
/* read dspic FW-Version */
|
|
if (dspic_read(DSPIC_FW_VERSION_REG, &data)) {
|
|
post_log("dsPIC: failed read FW-Version\n");
|
|
ret = 1;
|
|
} else {
|
|
post_log("dsPIC FW-Version: %u.%u\n",
|
|
(data >> 8) & 0xFF, data & 0xFF);
|
|
}
|
|
|
|
/* read dspic SYS-Version */
|
|
if (dspic_read(DSPIC_SYS_VERSION_REG, &data)) {
|
|
post_log("dsPIC: failed read version\n");
|
|
ret = 1;
|
|
} else {
|
|
post_log("dsPIC SYS-Version: %u.%u\n",
|
|
(data >> 8) & 0xFF, data & 0xFF);
|
|
}
|
|
|
|
/* read dspic POST error code */
|
|
if (dspic_read(DSPIC_POST_ERROR_REG, &data)) {
|
|
post_log("dsPIC: failed read POST code\n");
|
|
ret = 1;
|
|
} else {
|
|
post_log("dsPIC POST-ERROR code: 0x%04X\n", data);
|
|
}
|
|
|
|
/* read dspic SYS error code */
|
|
if ((data = dspic_read(DSPIC_SYS_ERROR_REG, &data))) {
|
|
post_log("dsPIC: failed read system error\n");
|
|
ret = 1;
|
|
} else {
|
|
post_log("dsPIC SYS-ERROR code: 0x%04X\n", data);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#endif /* CONFIG_POST & CONFIG_SYS_POST_BSPEC2 */
|