upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/board/pcs440ep/pcs440ep.c

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18 KiB

/*
* (C) Copyright 2006
* Stefan Roese, DENX Software Engineering, sr@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
*/
#include <common.h>
#include <ppc4xx.h>
#include <malloc.h>
#include <command.h>
#include <crc.h>
#include <asm/processor.h>
#include <spd_sdram.h>
#include <status_led.h>
#include <sha1.h>
#include <asm/io.h>
#include <net.h>
DECLARE_GLOBAL_DATA_PTR;
extern flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
unsigned char sha1_checksum[SHA1_SUM_LEN];
/* swap 4 Bits (Bit0 = Bit3, Bit1 = Bit2, Bit2 = Bit1 and Bit3 = Bit0) */
unsigned char swapbits[16] = {0x0, 0x8, 0x4, 0xc, 0x2, 0xa, 0x6, 0xe,
0x1, 0x9, 0x5, 0xd, 0x3, 0xb, 0x7, 0xf};
static void set_leds (int val)
{
out32(GPIO0_OR, (in32 (GPIO0_OR) & ~0x78000000) | (val << 27));
}
#define GET_LEDS ((in32 (GPIO0_OR) & 0x78000000) >> 27)
void __led_init (led_id_t mask, int state)
{
int val = GET_LEDS;
if (state == STATUS_LED_ON)
val |= mask;
else
val &= ~mask;
set_leds (val);
}
void __led_set (led_id_t mask, int state)
{
int val = GET_LEDS;
if (state == STATUS_LED_ON)
val |= mask;
else if (state == STATUS_LED_OFF)
val &= ~mask;
set_leds (val);
}
void __led_toggle (led_id_t mask)
{
int val = GET_LEDS;
val ^= mask;
set_leds (val);
}
static void status_led_blink (void)
{
int i;
int val = GET_LEDS;
/* set all LED which are on, to state BLINKING */
for (i = 0; i < 4; i++) {
if (val & 0x01) status_led_set (3 - i, STATUS_LED_BLINKING);
else status_led_set (3 - i, STATUS_LED_OFF);
val = val >> 1;
}
}
#if defined(CONFIG_SHOW_BOOT_PROGRESS)
void show_boot_progress (int val)
{
/* find all valid Codes for val in README */
if (val == -30) return;
if (val < 0) {
/* smthing goes wrong */
status_led_blink ();
return;
}
switch (val) {
case 1:
/* validating Image */
status_led_set (0, STATUS_LED_OFF);
status_led_set (1, STATUS_LED_ON);
status_led_set (2, STATUS_LED_ON);
break;
case 15:
/* booting */
status_led_set (0, STATUS_LED_ON);
status_led_set (1, STATUS_LED_ON);
status_led_set (2, STATUS_LED_ON);
break;
#if 0
case 64:
/* starting Ethernet configuration */
status_led_set (0, STATUS_LED_OFF);
status_led_set (1, STATUS_LED_OFF);
status_led_set (2, STATUS_LED_ON);
break;
#endif
case 80:
/* loading Image */
status_led_set (0, STATUS_LED_ON);
status_led_set (1, STATUS_LED_OFF);
status_led_set (2, STATUS_LED_ON);
break;
}
}
#endif
int board_early_init_f(void)
{
register uint reg;
set_leds(0); /* display boot info counter */
/*--------------------------------------------------------------------
* Setup the external bus controller/chip selects
*-------------------------------------------------------------------*/
mtdcr(EBC0_CFGADDR, EBC0_CFG);
reg = mfdcr(EBC0_CFGDATA);
mtdcr(EBC0_CFGDATA, reg | 0x04000000); /* Set ATC */
/*--------------------------------------------------------------------
* GPIO's are alreay setup in arch/powerpc/cpu/ppc4xx/cpu_init.c
* via define from board config file.
*-------------------------------------------------------------------*/
/*--------------------------------------------------------------------
* Setup the interrupt controller polarities, triggers, etc.
*-------------------------------------------------------------------*/
mtdcr(UIC0SR, 0xffffffff); /* clear all */
mtdcr(UIC0ER, 0x00000000); /* disable all */
mtdcr(UIC0CR, 0x00000001); /* UIC1 crit is critical */
mtdcr(UIC0PR, 0xfffffe1f); /* per ref-board manual */
mtdcr(UIC0TR, 0x01c00000); /* per ref-board manual */
mtdcr(UIC0VR, 0x00000001); /* int31 highest, base=0x000 */
mtdcr(UIC0SR, 0xffffffff); /* clear all */
mtdcr(UIC1SR, 0xffffffff); /* clear all */
mtdcr(UIC1ER, 0x00000000); /* disable all */
mtdcr(UIC1CR, 0x00000000); /* all non-critical */
mtdcr(UIC1PR, 0xffffe0ff); /* per ref-board manual */
mtdcr(UIC1TR, 0x00ffc000); /* per ref-board manual */
mtdcr(UIC1VR, 0x00000001); /* int31 highest, base=0x000 */
mtdcr(UIC1SR, 0xffffffff); /* clear all */
/*--------------------------------------------------------------------
* Setup other serial configuration
*-------------------------------------------------------------------*/
mfsdr(SDR0_PCI0, reg);
mtsdr(SDR0_PCI0, 0x80000000 | reg); /* PCI arbiter enabled */
mtsdr(SDR0_PFC0, 0x00000000); /* Pin function: enable GPIO49-63 */
mtsdr(SDR0_PFC1, 0x00048000); /* Pin function: UART0 has 4 pins, select IRQ5 */
return 0;
}
#define EEPROM_LEN 256
static void load_ethaddr(void)
{
int ok_ethaddr, ok_eth1addr;
int ret;
uchar buf[EEPROM_LEN];
char *use_eeprom;
u16 checksumcrc16 = 0;
/* If the env is sane, then nothing for us to do */
ok_ethaddr = eth_getenv_enetaddr("ethaddr", buf);
ok_eth1addr = eth_getenv_enetaddr("eth1addr", buf);
if (ok_ethaddr && ok_eth1addr)
return;
/* read the MACs from EEprom */
status_led_set (0, STATUS_LED_ON);
status_led_set (1, STATUS_LED_ON);
ret = eeprom_read (CONFIG_SYS_I2C_EEPROM_ADDR, 0, buf, EEPROM_LEN);
if (ret == 0) {
checksumcrc16 = cyg_crc16 (buf, EEPROM_LEN - 2);
/* check, if the EEprom is programmed:
* - The Prefix(Byte 0,1,2) is equal to "ATR"
* - The checksum, stored in the last 2 Bytes, is correct
*/
if ((strncmp ((char *)buf,"ATR",3) != 0) ||
((checksumcrc16 >> 8) != buf[EEPROM_LEN - 2]) ||
((checksumcrc16 & 0xff) != buf[EEPROM_LEN - 1])) {
/* EEprom is not programmed */
printf("%s: EEPROM Checksum not OK\n", __FUNCTION__);
} else {
/* get the MACs */
if (!ok_ethaddr)
eth_setenv_enetaddr("ethaddr", &buf[3]);
if (!ok_eth1addr)
eth_setenv_enetaddr("eth1addr", &buf[9]);
return;
}
}
/* some error reading the EEprom */
if ((use_eeprom = getenv ("use_eeprom_ethaddr")) == NULL) {
/* dont use bootcmd */
setenv("bootdelay", "-1");
return;
}
/* == default ? use standard */
if (strncmp (use_eeprom, "default", 7) == 0) {
return;
}
/* Env doesnt exist -> hang */
status_led_blink ();
/* here we do this "handy" because we have no interrupts
at this time */
puts ("### EEPROM ERROR ### Please RESET the board ###\n");
for (;;) {
__led_toggle (12);
udelay (100000);
}
return;
}
#ifdef CONFIG_PREBOOT
static uchar kbd_magic_prefix[] = "key_magic";
static uchar kbd_command_prefix[] = "key_cmd";
struct kbd_data_t {
char s1;
char s2;
};
struct kbd_data_t* get_keys (struct kbd_data_t *kbd_data)
{
char *val;
unsigned long tmp;
/* use the DIPs for some bootoptions */
val = getenv (ENV_NAME_DIP);
tmp = simple_strtoul (val, NULL, 16);
kbd_data->s2 = (tmp & 0x0f);
kbd_data->s1 = (tmp & 0xf0) >> 4;
return kbd_data;
}
static int compare_magic (const struct kbd_data_t *kbd_data, char *str)
{
char s1 = str[0];
if (s1 >= '0' && s1 <= '9')
s1 -= '0';
else if (s1 >= 'a' && s1 <= 'f')
s1 = s1 - 'a' + 10;
else if (s1 >= 'A' && s1 <= 'F')
s1 = s1 - 'A' + 10;
else
return -1;
if (s1 != kbd_data->s1) return -1;
s1 = str[1];
if (s1 >= '0' && s1 <= '9')
s1 -= '0';
else if (s1 >= 'a' && s1 <= 'f')
s1 = s1 - 'a' + 10;
else if (s1 >= 'A' && s1 <= 'F')
s1 = s1 - 'A' + 10;
else
return -1;
if (s1 != kbd_data->s2) return -1;
return 0;
}
static char *key_match (const struct kbd_data_t *kbd_data)
{
char magic[sizeof (kbd_magic_prefix) + 1];
char *suffix;
char *kbd_magic_keys;
/*
* The following string defines the characters that can be appended
* to "key_magic" to form the names of environment variables that
* hold "magic" key codes, i. e. such key codes that can cause
* pre-boot actions. If the string is empty (""), then only
* "key_magic" is checked (old behaviour); the string "125" causes
* checks for "key_magic1", "key_magic2" and "key_magic5", etc.
*/
if ((kbd_magic_keys = getenv ("magic_keys")) == NULL)
kbd_magic_keys = "";
/* loop over all magic keys;
* use '\0' suffix in case of empty string
*/
for (suffix = kbd_magic_keys; *suffix ||
suffix == kbd_magic_keys; ++suffix) {
sprintf (magic, "%s%c", kbd_magic_prefix, *suffix);
if (compare_magic (kbd_data, getenv (magic)) == 0) {
char cmd_name[sizeof (kbd_command_prefix) + 1];
char *cmd;
sprintf (cmd_name, "%s%c", kbd_command_prefix, *suffix);
cmd = getenv (cmd_name);
return (cmd);
}
}
return (NULL);
}
#endif /* CONFIG_PREBOOT */
static int pcs440ep_readinputs (void)
{
int i;
char value[20];
/* read the inputs and set the Envvars */
/* Revision Level Bit 26 - 29 */
i = ((in32 (GPIO0_IR) & 0x0000003c) >> 2);
i = swapbits[i];
sprintf (value, "%02x", i);
setenv (ENV_NAME_REVLEV, value);
/* Solder Switch Bit 30 - 33 */
i = (in32 (GPIO0_IR) & 0x00000003) << 2;
i += (in32 (GPIO1_IR) & 0xc0000000) >> 30;
i = swapbits[i];
sprintf (value, "%02x", i);
setenv (ENV_NAME_SOLDER, value);
/* DIP Switch Bit 49 - 56 */
i = ((in32 (GPIO1_IR) & 0x00007f80) >> 7);
i = (swapbits[i & 0x0f] << 4) + swapbits[(i & 0xf0) >> 4];
sprintf (value, "%02x", i);
setenv (ENV_NAME_DIP, value);
return 0;
}
#if defined(CONFIG_SHA1_CHECK_UB_IMG)
/*************************************************************************
* calculate a SHA1 sum for the U-Boot image in Flash.
*
************************************************************************/
static int pcs440ep_sha1 (int docheck)
{
unsigned char *data;
unsigned char *ptroff;
unsigned char output[20];
unsigned char org[20];
int i, len = CONFIG_SHA1_LEN;
memcpy ((char *)CONFIG_SYS_LOAD_ADDR, (char *)CONFIG_SHA1_START, len);
data = (unsigned char *)CONFIG_SYS_LOAD_ADDR;
ptroff = &data[len + SHA1_SUM_POS];
for (i = 0; i < SHA1_SUM_LEN; i++) {
org[i] = ptroff[i];
ptroff[i] = 0;
}
sha1_csum ((unsigned char *) data, len, (unsigned char *)output);
if (docheck == 2) {
for (i = 0; i < 20 ; i++) {
printf("%02X ", output[i]);
}
printf("\n");
}
if (docheck == 1) {
for (i = 0; i < 20 ; i++) {
if (org[i] != output[i]) return 1;
}
}
return 0;
}
/*************************************************************************
* do some checks after the SHA1 checksum from the U-Boot Image was
* calculated.
*
************************************************************************/
static void pcs440ep_checksha1 (void)
{
int ret;
char *cs_test;
status_led_set (0, STATUS_LED_OFF);
status_led_set (1, STATUS_LED_OFF);
status_led_set (2, STATUS_LED_ON);
ret = pcs440ep_sha1 (1);
if (ret == 0) return;
if ((cs_test = getenv ("cs_test")) == NULL) {
/* Env doesnt exist -> hang */
status_led_blink ();
/* here we do this "handy" because we have no interrupts
at this time */
puts ("### SHA1 ERROR ### Please RESET the board ###\n");
for (;;) {
__led_toggle (2);
udelay (100000);
}
}
if (strncmp (cs_test, "off", 3) == 0) {
printf ("SHA1 U-Boot sum NOT ok!\n");
setenv ("bootdelay", "-1");
}
}
#else
static __inline__ void pcs440ep_checksha1 (void) { do {} while (0);}
#endif
int misc_init_r (void)
{
uint pbcr;
int size_val = 0;
load_ethaddr();
/* Re-do sizing to get full correct info */
mtdcr(EBC0_CFGADDR, PB0CR);
pbcr = mfdcr(EBC0_CFGDATA);
switch (gd->bd->bi_flashsize) {
case 1 << 20:
size_val = 0;
break;
case 2 << 20:
size_val = 1;
break;
case 4 << 20:
size_val = 2;
break;
case 8 << 20:
size_val = 3;
break;
case 16 << 20:
size_val = 4;
break;
case 32 << 20:
size_val = 5;
break;
case 64 << 20:
size_val = 6;
break;
case 128 << 20:
size_val = 7;
break;
}
pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17);
mtdcr(EBC0_CFGADDR, PB0CR);
mtdcr(EBC0_CFGDATA, pbcr);
/* adjust flash start and offset */
gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
gd->bd->bi_flashoffset = 0;
/* Monitor protection ON by default */
(void)flash_protect(FLAG_PROTECT_SET,
-CONFIG_SYS_MONITOR_LEN,
0xffffffff,
&flash_info[1]);
/* Env protection ON by default */
(void)flash_protect(FLAG_PROTECT_SET,
CONFIG_ENV_ADDR_REDUND,
CONFIG_ENV_ADDR_REDUND + 2*CONFIG_ENV_SECT_SIZE - 1,
&flash_info[1]);
pcs440ep_readinputs ();
pcs440ep_checksha1 ();
#ifdef CONFIG_PREBOOT
{
struct kbd_data_t kbd_data;
/* Decode keys */
char *str = strdup (key_match (get_keys (&kbd_data)));
/* Set or delete definition */
setenv ("preboot", str);
free (str);
}
#endif /* CONFIG_PREBOOT */
return 0;
}
int checkboard(void)
{
char *s = getenv("serial#");
printf("Board: PCS440EP");
if (s != NULL) {
puts(", serial# ");
puts(s);
}
putc('\n');
return (0);
}
void spd_ddr_init_hang (void)
{
status_led_set (0, STATUS_LED_OFF);
status_led_set (1, STATUS_LED_ON);
/* we cannot use hang() because we are still running from
Flash, and so the status_led driver is not initialized */
puts ("### SDRAM ERROR ### Please RESET the board ###\n");
for (;;) {
__led_toggle (4);
udelay (100000);
}
}
phys_size_t initdram (int board_type)
{
long dram_size = 0;
status_led_set (0, STATUS_LED_ON);
status_led_set (1, STATUS_LED_OFF);
dram_size = spd_sdram();
status_led_set (0, STATUS_LED_OFF);
status_led_set (1, STATUS_LED_ON);
if (dram_size == 0) {
hang();
}
return dram_size;
}
/*************************************************************************
* hw_watchdog_reset
*
* This routine is called to reset (keep alive) the watchdog timer
*
************************************************************************/
#if defined(CONFIG_HW_WATCHDOG)
void hw_watchdog_reset(void)
{
}
#endif
/*************************************************************************
* "led" Commando for the U-Boot shell
*
************************************************************************/
int do_led (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int rcode = 0, i;
ulong pattern = 0;
pattern = simple_strtoul (argv[1], NULL, 16);
if (pattern > 0x400) {
int val = GET_LEDS;
printf ("led: %x\n", val);
return rcode;
}
if (pattern > 0x200) {
status_led_blink ();
hang ();
return rcode;
}
if (pattern > 0x100) {
status_led_blink ();
return rcode;
}
pattern &= 0x0f;
for (i = 0; i < 4; i++) {
if (pattern & 0x01) status_led_set (i, STATUS_LED_ON);
else status_led_set (i, STATUS_LED_OFF);
pattern = pattern >> 1;
}
return rcode;
}
U_BOOT_CMD(
led, 2, 1, do_led,
"set the DIAG-LED",
"[bitmask] 0x01 = DIAG 1 on\n"
" 0x02 = DIAG 2 on\n"
" 0x04 = DIAG 3 on\n"
" 0x08 = DIAG 4 on\n"
" > 0x100 set the LED, who are on, to state blinking"
);
#if defined(CONFIG_SHA1_CHECK_UB_IMG)
/*************************************************************************
* "sha1" Commando for the U-Boot shell
*
************************************************************************/
int do_sha1 (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int rcode = -1;
if (argc < 2) {
usage:
return cmd_usage(cmdtp);
}
if (argc >= 3) {
unsigned char *data;
unsigned char output[20];
int len;
int i;
data = (unsigned char *)simple_strtoul (argv[1], NULL, 16);
len = simple_strtoul (argv[2], NULL, 16);
sha1_csum (data, len, (unsigned char *)output);
printf ("U-Boot sum:\n");
for (i = 0; i < 20 ; i++) {
printf ("%02X ", output[i]);
}
printf ("\n");
if (argc == 4) {
data = (unsigned char *)simple_strtoul (argv[3], NULL, 16);
memcpy (data, output, 20);
}
return 0;
}
if (argc == 2) {
char *ptr = argv[1];
if (*ptr != '-') goto usage;
ptr++;
if ((*ptr == 'c') || (*ptr == 'C')) {
rcode = pcs440ep_sha1 (1);
printf ("SHA1 U-Boot sum %sok!\n", (rcode != 0) ? "not " : "");
} else if ((*ptr == 'p') || (*ptr == 'P')) {
rcode = pcs440ep_sha1 (2);
} else {
rcode = pcs440ep_sha1 (0);
}
return rcode;
}
return rcode;
}
U_BOOT_CMD(
sha1, 4, 1, do_sha1,
"calculate the SHA1 Sum",
"address len [addr] calculate the SHA1 sum [save at addr]\n"
" -p calculate the SHA1 sum from the U-Boot image in flash and print\n"
" -c check the U-Boot image in flash"
);
#endif
#if defined (CONFIG_CMD_IDE)
/* These addresses need to be shifted one place to the left
* ( bus per_addr 20 -30 is connectsd on CF bus A10-A0)
* These values are shifted
*/
extern ulong *ide_bus_offset;
void inline ide_outb(int dev, int port, unsigned char val)
{
debug ("ide_outb (dev= %d, port= 0x%x, val= 0x%02x) : @ 0x%08lx\n",
dev, port, val, (ATA_CURR_BASE(dev)+port));
out_be16((u16 *)(ATA_CURR_BASE(dev)+(port << 1)), val);
}
unsigned char inline ide_inb(int dev, int port)
{
uchar val;
val = in_be16((u16 *)(ATA_CURR_BASE(dev)+(port << 1)));
debug ("ide_inb (dev= %d, port= 0x%x) : @ 0x%08lx -> 0x%02x\n",
dev, port, (ATA_CURR_BASE(dev)+port), val);
return (val);
}
#endif
#ifdef CONFIG_IDE_PREINIT
int ide_preinit (void)
{
/* Set True IDE Mode */
out32 (GPIO0_OR, (in32 (GPIO0_OR) | 0x00100000));
out32 (GPIO0_OR, (in32 (GPIO0_OR) | 0x00200000));
out32 (GPIO1_OR, (in32 (GPIO1_OR) & ~0x00008040));
udelay (100000);
return 0;
}
#endif
#if defined (CONFIG_CMD_IDE) && defined (CONFIG_IDE_RESET)
void ide_set_reset (int idereset)
{
debug ("ide_reset(%d)\n", idereset);
if (idereset == 0) {
out32 (GPIO0_OR, (in32 (GPIO0_OR) | 0x00200000));
} else {
out32 (GPIO0_OR, (in32 (GPIO0_OR) & ~0x00200000));
}
udelay (10000);
}
#endif /* defined (CONFIG_CMD_IDE) && defined (CONFIG_IDE_RESET) */