i2c: Remove CONFIG_I2C_MULTI_BUS

This functionality is part of the legacy I2C subsystem and is currently
unused anywhere.  Remove the remaining references.

Signed-off-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Tom Rini 2022-12-02 16:42:30 -05:00
parent 495fc3e836
commit 1353b25ec5
6 changed files with 7 additions and 58 deletions

10
README
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@ -984,21 +984,13 @@ The following options need to be configured:
CFG_SYS_I2C_NOPROBES
This option specifies a list of I2C devices that will be skipped
when the 'i2c probe' command is issued. If CONFIG_I2C_MULTI_BUS
is set, specify a list of bus-device pairs. Otherwise, specify
a 1D array of device addresses
when the 'i2c probe' command is issued.
e.g.
#undef CONFIG_I2C_MULTI_BUS
#define CFG_SYS_I2C_NOPROBES {0x50,0x68}
will skip addresses 0x50 and 0x68 on a board with one I2C bus
#define CONFIG_I2C_MULTI_BUS
#define CFG_SYS_I2C_NOPROBES {{0,0x50},{0,0x68},{1,0x54}}
will skip addresses 0x50 and 0x68 on bus 0 and address 0x54 on bus 1
CFG_SYS_RTC_BUS_NUM
If defined, then this indicates the I2C bus number for the RTC.

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@ -98,7 +98,7 @@ static uint i2c_mm_last_alen;
* pairs. The following macros take care of this */
#if defined(CFG_SYS_I2C_NOPROBES)
#if CONFIG_IS_ENABLED(SYS_I2C_LEGACY) || defined(CONFIG_I2C_MULTI_BUS)
#if CONFIG_IS_ENABLED(SYS_I2C_LEGACY)
static struct
{
uchar bus;
@ -1764,8 +1764,7 @@ static int do_i2c_show_bus(struct cmd_tbl *cmdtp, int flag, int argc,
* Returns zero on success, CMD_RET_USAGE in case of misuse and negative
* on error.
*/
#if CONFIG_IS_ENABLED(SYS_I2C_LEGACY) || defined(CONFIG_I2C_MULTI_BUS) || \
CONFIG_IS_ENABLED(DM_I2C)
#if CONFIG_IS_ENABLED(SYS_I2C_LEGACY) || CONFIG_IS_ENABLED(DM_I2C)
static int do_i2c_bus_num(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
@ -1915,10 +1914,9 @@ static struct cmd_tbl cmd_i2c_sub[] = {
U_BOOT_CMD_MKENT(bus, 1, 1, do_i2c_show_bus, "", ""),
#endif
U_BOOT_CMD_MKENT(crc32, 3, 1, do_i2c_crc, "", ""),
#if CONFIG_IS_ENABLED(SYS_I2C_LEGACY) || \
defined(CONFIG_I2C_MULTI_BUS) || CONFIG_IS_ENABLED(DM_I2C)
#if CONFIG_IS_ENABLED(SYS_I2C_LEGACY) || CONFIG_IS_ENABLED(DM_I2C)
U_BOOT_CMD_MKENT(dev, 1, 1, do_i2c_bus_num, "", ""),
#endif /* CONFIG_I2C_MULTI_BUS */
#endif
#if defined(CONFIG_I2C_EDID)
U_BOOT_CMD_MKENT(edid, 1, 1, do_edid, "", ""),
#endif /* CONFIG_I2C_EDID */
@ -1992,10 +1990,9 @@ static char i2c_help_text[] =
"i2c " /* That's the prefix for the crc32 command below. */
#endif
"crc32 chip address[.0, .1, .2] count - compute CRC32 checksum\n"
#if CONFIG_IS_ENABLED(SYS_I2C_LEGACY) || \
defined(CONFIG_I2C_MULTI_BUS) || CONFIG_IS_ENABLED(DM_I2C)
#if CONFIG_IS_ENABLED(SYS_I2C_LEGACY) || CONFIG_IS_ENABLED(DM_I2C)
"i2c dev [dev] - show or set current I2C bus\n"
#endif /* CONFIG_I2C_MULTI_BUS */
#endif
#if defined(CONFIG_I2C_EDID)
"i2c edid chip - print EDID configuration information\n"
#endif /* CONFIG_I2C_EDID */

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@ -374,45 +374,12 @@ static int __i2c_write(struct mv_i2c *base, uchar chip, u8 *addr, int alen,
static struct mv_i2c *base_glob;
#ifdef CONFIG_I2C_MULTI_BUS
static unsigned long i2c_regs[CONFIG_MV_I2C_NUM] = CONFIG_MV_I2C_REG;
static unsigned int bus_initialized[CONFIG_MV_I2C_NUM];
static unsigned int current_bus;
int i2c_set_bus_num(unsigned int bus)
{
if ((bus < 0) || (bus >= CONFIG_MV_I2C_NUM)) {
printf("Bad bus: %d\n", bus);
return -1;
}
base_glob = (struct mv_i2c *)i2c_regs[bus];
current_bus = bus;
if (!bus_initialized[current_bus]) {
bus_initialized[current_bus] = 1;
}
return 0;
}
unsigned int i2c_get_bus_num(void)
{
return current_bus;
}
#endif
/* API Functions */
void i2c_init(int speed, int slaveaddr)
{
u32 val;
#ifdef CONFIG_I2C_MULTI_BUS
current_bus = 0;
base_glob = (struct mv_i2c *)i2c_regs[current_bus];
#else
base_glob = (struct mv_i2c *)CONFIG_MV_I2C_REG;
#endif
if (speed > I2C_SPEED_STANDARD_RATE)
val = ICR_FM;

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@ -36,9 +36,6 @@
#define CONFIG_MXC_UART_BASE UART5_BASE
/* I2C Configs */
#define CONFIG_I2C_MULTI_BUS
/* MMC Configs */
#define CFG_SYS_FSL_ESDHC_ADDR 0
#define CFG_SYS_FSL_USDHC_NUM 2

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@ -149,7 +149,6 @@
* I2C
*/
#define CONFIG_I2C_MULTI_BUS
#define CFG_SYS_I2C_MAX_HOPS 1
#define CFG_SYS_NUM_I2C_BUSES 3
#define I2C_MUX_PCA_ADDR 0x70

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@ -33,9 +33,6 @@
#define CFG_SYS_INIT_RAM_ADDR IRAM_BASE_ADDR
#define CFG_SYS_INIT_RAM_SIZE IRAM_SIZE
/* I2C */
#define CONFIG_I2C_MULTI_BUS
/* I2C EEPROM */
/* MMC Configs */