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-rw-r--r--common/cmd_i2c.c234
-rw-r--r--common/env_eeprom.c32
2 files changed, 6 insertions, 260 deletions
diff --git a/common/cmd_i2c.c b/common/cmd_i2c.c
index 5614a6d..5c60d31 100644
--- a/common/cmd_i2c.c
+++ b/common/cmd_i2c.c
@@ -110,8 +110,7 @@ static uint i2c_mm_last_alen;
* pairs. The following macros take care of this */
#if defined(CONFIG_SYS_I2C_NOPROBES)
-#if defined(CONFIG_SYS_I2C) || defined(CONFIG_I2C_MUX) || \
- defined(CONFIG_I2C_MULTI_BUS)
+#if defined(CONFIG_SYS_I2C) || defined(CONFIG_I2C_MULTI_BUS)
static struct
{
uchar bus;
@@ -132,11 +131,6 @@ static uchar i2c_no_probes[] = CONFIG_SYS_I2C_NOPROBES;
#define NUM_ELEMENTS_NOPROBE (sizeof(i2c_no_probes)/sizeof(i2c_no_probes[0]))
#endif
-#if defined(CONFIG_I2C_MUX)
-static I2C_MUX_DEVICE *i2c_mux_devices = NULL;
-static int i2c_mux_busid = CONFIG_SYS_MAX_I2C_BUS;
-#endif
-
#define DISP_LINE_LEN 16
/**
@@ -1554,7 +1548,7 @@ static int do_i2c_reset(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv
static cmd_tbl_t cmd_i2c_sub[] = {
#if defined(CONFIG_SYS_I2C)
U_BOOT_CMD_MKENT(bus, 1, 1, do_i2c_show_bus, "", ""),
-#endif /* CONFIG_I2C_MUX */
+#endif
U_BOOT_CMD_MKENT(crc32, 3, 1, do_i2c_crc, "", ""),
#if defined(CONFIG_SYS_I2C) || \
defined(CONFIG_I2C_MULTI_BUS)
@@ -1618,7 +1612,7 @@ static int do_i2c(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
static char i2c_help_text[] =
#if defined(CONFIG_SYS_I2C)
"bus [muxtype:muxaddr:muxchannel] - show I2C bus info\n"
-#endif /* CONFIG_I2C_MUX */
+#endif
"crc32 chip address[.0, .1, .2] count - compute CRC32 checksum\n"
#if defined(CONFIG_SYS_I2C) || \
defined(CONFIG_I2C_MULTI_BUS)
@@ -1647,225 +1641,3 @@ U_BOOT_CMD(
"I2C sub-system",
i2c_help_text
);
-
-#if defined(CONFIG_I2C_MUX)
-static int i2c_mux_add_device(I2C_MUX_DEVICE *dev)
-{
- I2C_MUX_DEVICE *devtmp = i2c_mux_devices;
-
- if (i2c_mux_devices == NULL) {
- i2c_mux_devices = dev;
- return 0;
- }
- while (devtmp->next != NULL)
- devtmp = devtmp->next;
-
- devtmp->next = dev;
- return 0;
-}
-
-I2C_MUX_DEVICE *i2c_mux_search_device(int id)
-{
- I2C_MUX_DEVICE *device = i2c_mux_devices;
-
- while (device != NULL) {
- if (device->busid == id)
- return device;
- device = device->next;
- }
- return NULL;
-}
-
-/* searches in the buf from *pos the next ':'.
- * returns:
- * 0 if found (with *pos = where)
- * < 0 if an error occured
- * > 0 if the end of buf is reached
- */
-static int i2c_mux_search_next (int *pos, uchar *buf, int len)
-{
- while ((buf[*pos] != ':') && (*pos < len)) {
- *pos += 1;
- }
- if (*pos >= len)
- return 1;
- if (buf[*pos] != ':')
- return -1;
- return 0;
-}
-
-static int i2c_mux_get_busid (void)
-{
- int tmp = i2c_mux_busid;
-
- i2c_mux_busid ++;
- return tmp;
-}
-
-/* Analyses a Muxstring and immediately sends the
- commands to the muxes. Runs from flash.
- */
-int i2c_mux_ident_muxstring_f (uchar *buf)
-{
- int pos = 0;
- int oldpos;
- int ret = 0;
- int len = strlen((char *)buf);
- int chip;
- uchar channel;
- int was = 0;
-
- while (ret == 0) {
- oldpos = pos;
- /* search name */
- ret = i2c_mux_search_next(&pos, buf, len);
- if (ret != 0)
- printf ("ERROR\n");
- /* search address */
- pos ++;
- oldpos = pos;
- ret = i2c_mux_search_next(&pos, buf, len);
- if (ret != 0)
- printf ("ERROR\n");
- buf[pos] = 0;
- chip = simple_strtoul((char *)&buf[oldpos], NULL, 16);
- buf[pos] = ':';
- /* search channel */
- pos ++;
- oldpos = pos;
- ret = i2c_mux_search_next(&pos, buf, len);
- if (ret < 0)
- printf ("ERROR\n");
- was = 0;
- if (buf[pos] != 0) {
- buf[pos] = 0;
- was = 1;
- }
- channel = simple_strtoul((char *)&buf[oldpos], NULL, 16);
- if (was)
- buf[pos] = ':';
- if (i2c_write(chip, 0, 0, &channel, 1) != 0) {
- printf ("Error setting Mux: chip:%x channel: \
- %x\n", chip, channel);
- return -1;
- }
- pos ++;
- oldpos = pos;
-
- }
- i2c_init_board();
-
- return 0;
-}
-
-/* Analyses a Muxstring and if this String is correct
- * adds a new I2C Bus.
- */
-I2C_MUX_DEVICE *i2c_mux_ident_muxstring (uchar *buf)
-{
- I2C_MUX_DEVICE *device;
- I2C_MUX *mux;
- int pos = 0;
- int oldpos;
- int ret = 0;
- int len = strlen((char *)buf);
- int was = 0;
-
- device = (I2C_MUX_DEVICE *)malloc (sizeof(I2C_MUX_DEVICE));
- device->mux = NULL;
- device->busid = i2c_mux_get_busid ();
- device->next = NULL;
- while (ret == 0) {
- mux = (I2C_MUX *)malloc (sizeof(I2C_MUX));
- mux->next = NULL;
- /* search name of mux */
- oldpos = pos;
- ret = i2c_mux_search_next(&pos, buf, len);
- if (ret != 0)
- printf ("%s no name.\n", __FUNCTION__);
- mux->name = (char *)malloc (pos - oldpos + 1);
- memcpy (mux->name, &buf[oldpos], pos - oldpos);
- mux->name[pos - oldpos] = 0;
- /* search address */
- pos ++;
- oldpos = pos;
- ret = i2c_mux_search_next(&pos, buf, len);
- if (ret != 0)
- printf ("%s no mux address.\n", __FUNCTION__);
- buf[pos] = 0;
- mux->chip = simple_strtoul((char *)&buf[oldpos], NULL, 16);
- buf[pos] = ':';
- /* search channel */
- pos ++;
- oldpos = pos;
- ret = i2c_mux_search_next(&pos, buf, len);
- if (ret < 0)
- printf ("%s no mux channel.\n", __FUNCTION__);
- was = 0;
- if (buf[pos] != 0) {
- buf[pos] = 0;
- was = 1;
- }
- mux->channel = simple_strtoul((char *)&buf[oldpos], NULL, 16);
- if (was)
- buf[pos] = ':';
- if (device->mux == NULL)
- device->mux = mux;
- else {
- I2C_MUX *muxtmp = device->mux;
- while (muxtmp->next != NULL) {
- muxtmp = muxtmp->next;
- }
- muxtmp->next = mux;
- }
- pos ++;
- oldpos = pos;
- }
- if (ret > 0) {
- /* Add Device */
- i2c_mux_add_device (device);
- return device;
- }
-
- return NULL;
-}
-
-int i2x_mux_select_mux(int bus)
-{
- I2C_MUX_DEVICE *dev;
- I2C_MUX *mux;
-
- if ((gd->flags & GD_FLG_RELOC) != GD_FLG_RELOC) {
- /* select Default Mux Bus */
-#if defined(CONFIG_SYS_I2C_IVM_BUS)
- i2c_mux_ident_muxstring_f ((uchar *)CONFIG_SYS_I2C_IVM_BUS);
-#else
- {
- unsigned char *buf;
- buf = (unsigned char *) getenv("EEprom_ivm");
- if (buf != NULL)
- i2c_mux_ident_muxstring_f (buf);
- }
-#endif
- return 0;
- }
- dev = i2c_mux_search_device(bus);
- if (dev == NULL)
- return -1;
-
- mux = dev->mux;
- while (mux != NULL) {
- /* do deblocking on each level of mux, before mux config */
- i2c_init_board();
- if (i2c_write(mux->chip, 0, 0, &mux->channel, 1) != 0) {
- printf ("Error setting Mux: chip:%x channel: \
- %x\n", mux->chip, mux->channel);
- return -1;
- }
- mux = mux->next;
- }
- /* do deblocking on each level of mux and after mux config */
- i2c_init_board();
- return 0;
-}
-#endif /* CONFIG_I2C_MUX */
diff --git a/common/env_eeprom.c b/common/env_eeprom.c
index fbd459a..21226bf 100644
--- a/common/env_eeprom.c
+++ b/common/env_eeprom.c
@@ -49,41 +49,17 @@ static int eeprom_bus_read(unsigned dev_addr, unsigned offset,
#if defined(CONFIG_I2C_ENV_EEPROM_BUS)
int old_bus = i2c_get_bus_num();
-#if defined(CONFIG_SYS_I2C)
if (old_bus != CONFIG_I2C_ENV_EEPROM_BUS)
i2c_set_bus_num(CONFIG_I2C_ENV_EEPROM_BUS);
-#else
- if (gd->flags & GD_FLG_RELOC) {
- if (env_eeprom_bus == -1) {
- I2C_MUX_DEVICE *dev = NULL;
- dev = i2c_mux_ident_muxstring(
- (uchar *)CONFIG_I2C_ENV_EEPROM_BUS);
- if (dev != NULL)
- env_eeprom_bus = dev->busid;
- else
- printf("error adding env eeprom bus.\n");
- }
- if (old_bus != env_eeprom_bus) {
- i2c_set_bus_num(env_eeprom_bus);
- old_bus = env_eeprom_bus;
- }
- } else {
- rcode = i2c_mux_ident_muxstring_f(
- (uchar *)CONFIG_I2C_ENV_EEPROM_BUS);
- }
-#endif
#endif
rcode = eeprom_read(dev_addr, offset, buffer, cnt);
#if defined(CONFIG_I2C_ENV_EEPROM_BUS)
-#if defined(CONFIG_SYS_I2C)
- if (old_bus != CONFIG_I2C_ENV_EEPROM_BUS)
-#else
if (old_bus != env_eeprom_bus)
-#endif
i2c_set_bus_num(old_bus);
#endif
+
return rcode;
}
@@ -94,14 +70,12 @@ static int eeprom_bus_write(unsigned dev_addr, unsigned offset,
#if defined(CONFIG_I2C_ENV_EEPROM_BUS)
int old_bus = i2c_get_bus_num();
-#if defined(CONFIG_SYS_I2C)
if (old_bus != CONFIG_I2C_ENV_EEPROM_BUS)
i2c_set_bus_num(CONFIG_I2C_ENV_EEPROM_BUS);
-#else
- rcode = i2c_mux_ident_muxstring_f((uchar *)CONFIG_I2C_ENV_EEPROM_BUS);
-#endif
#endif
+
rcode = eeprom_write(dev_addr, offset, buffer, cnt);
+
#if defined(CONFIG_I2C_ENV_EEPROM_BUS)
i2c_set_bus_num(old_bus);
#endif
generated by cgit v1.1 at 2024-12-04 08:10:32 +0000