board: keymile: convert to CONFIG_DM_I2C

The conversion to DM_I2C is mandatory, rework to remove
use of legacy I2C API.

Signed-off-by: Anatolij Gustschin <[e-mail]>
Cc: Aleksandar Gerasimovski <[e-mail]>
Cc: Holger Brunck <[e-mail]>
Cc: Tomas Alvarez Vanoli <[e-mail]>
Reviewed-by: Simon Glass <[e-mail]>
Reviewed-by: Heiko Schocher <[e-mail]>

board/keymile/Kconfig

···
 
 menu "KM Board Setup"
 
-config SYS_I2C_INIT_BOARD
-	def_bool y if ARM
-
 config HUSH_INIT_VAR
 	def_bool y
 

board/keymile/common/common.c

···
 }
 #endif
 
-#if defined(CONFIG_SYS_I2C_INIT_BOARD)
 static void i2c_write_start_seq(void)
 {
 	set_sda(1);
···
 
 	return ret;
 }
-
-/**
- * i2c_init_board - reset i2c bus. When the board is powercycled during a
- * bus transfer it might hang; for details see doc/I2C_Edge_Conditions.
- */
-void i2c_init_board(void)
-{
-	/* Now run the AbortSequence() */
-	i2c_make_abort();
-}
-#endif
 
 #if defined(CONFIG_KM_COMMON_ETH_INIT)
 int board_eth_init(struct bd_info *bis)

board/keymile/common/common.h

···
 void check_for_uboot_update(void);
 
 #define DELAY_ABORT_SEQ		62  /* @200kHz 9 clocks = 44us, 62us is ok */
-#define DELAY_HALF_PERIOD	(500 / (CONFIG_SYS_I2C_SPEED / 1000))
+#define DELAY_HALF_PERIOD	(500 / (I2C_SPEED_STANDARD_RATE / 1000))
 
 void set_sda(int state);
 void set_scl(int state);
 int get_sda(void);
 int get_scl(void);
 
-int i2c_soft_read_pin(void);
 int i2c_make_abort(void);
 #endif /* __KEYMILE_COMMON_H */

board/keymile/common/ivm.c

···
 
 int ivm_read_eeprom(unsigned char *buf, int len, int mac_address_offset)
 {
+	struct udevice *eedev = NULL;
 	int ret;
-#if CONFIG_IS_ENABLED(DM_I2C)
-	struct udevice *eedev = NULL;
 
 	ret = i2c_get_chip_for_busnum(CONFIG_KM_IVM_BUS,
 				      CONFIG_SYS_IVM_EEPROM_ADR, 1, &eedev);
···
 		return 1;
 	}
 
+#if CONFIG_IS_ENABLED(ARCH_LS1021A)
+	/* add deblocking here */
+	i2c_make_abort();
+#endif
+
 	ret = dm_i2c_read(eedev, 0, buf, len);
 	if (ret != 0) {
 		printf("Error: Unable to read from I2C EEPROM at address %02X:%02X\n",
 		       CONFIG_SYS_IVM_EEPROM_ADR, 0);
 		return 1;
 	}
-#else
-	i2c_set_bus_num(CONFIG_KM_IVM_BUS);
-	/* add deblocking here */
-	i2c_make_abort();
 
-	ret = i2c_read(CONFIG_SYS_IVM_EEPROM_ADR, 0, 1, buf, len);
-	if (ret != 0) {
-		printf("Error reading EEprom\n");
-		return -2;
-	}
-#endif
 	return ivm_populate_env(buf, len, mac_address_offset);
 }

board/keymile/pg-wcom-ls102xa/pg-wcom-ls102xa.c

···
 
 #include <config.h>
 #include <event.h>
-#include <i2c.h>
 #include <asm/io.h>
 #include <asm/arch/immap_ls102xa.h>
 #include <asm/arch/clock.h>
···
 	qrio_enable_app_buffer();
 
 	arch_soc_init();
+
+	/*
+	 * Reset I2C bus. When the board is powercycled during a bus
+	 * transfer it might hang; for details see doc/I2C_Edge_Conditions.
+	 * Now run the AbortSequence()
+	 */
+	i2c_make_abort();
 
 	return 0;
 }

configs/pg_wcom_expu1_defconfig

···
 CONFIG_ENV_SOURCE_FILE="pg-wcom-expu1"
 CONFIG_ENV_SIZE=0x4000
 CONFIG_ENV_SECT_SIZE=0x20000
-CONFIG_SYS_I2C_MXC_I2C1=y
-CONFIG_SYS_I2C_MXC_I2C2=y
-CONFIG_SYS_I2C_MXC_I2C3=y
+CONFIG_DM_GPIO=y
 CONFIG_DEFAULT_DEVICE_TREE="ls1021a-pg-wcom-expu1"
 CONFIG_SYS_MONITOR_LEN=1048576
 CONFIG_BOOTCOUNT_BOOTLIMIT=3
···
 CONFIG_SYS_BOOTCOUNT_BE=y
 CONFIG_DDR_CLK_FREQ=50000000
 CONFIG_SYS_FSL_DDR3=y
-CONFIG_SYS_I2C_LEGACY=y
+CONFIG_DM_I2C=y
+CONFIG_I2C_MUX=y
+CONFIG_I2C_MUX_PCA954x=y
 # CONFIG_MMC is not set
 CONFIG_MTD=y
 CONFIG_MTD_NOR_FLASH=y

configs/pg_wcom_expu1_update_defconfig

···
 CONFIG_ENV_SOURCE_FILE="pg-wcom-expu1"
 CONFIG_ENV_SIZE=0x4000
 CONFIG_ENV_SECT_SIZE=0x20000
-CONFIG_SYS_I2C_MXC_I2C1=y
-CONFIG_SYS_I2C_MXC_I2C2=y
-CONFIG_SYS_I2C_MXC_I2C3=y
+CONFIG_DM_GPIO=y
 CONFIG_DEFAULT_DEVICE_TREE="ls1021a-pg-wcom-expu1"
 CONFIG_SYS_MONITOR_LEN=1048576
 CONFIG_BOOTCOUNT_BOOTLIMIT=3
···
 CONFIG_SYS_BOOTCOUNT_BE=y
 CONFIG_DDR_CLK_FREQ=50000000
 CONFIG_SYS_FSL_DDR3=y
-CONFIG_SYS_I2C_LEGACY=y
+CONFIG_DM_I2C=y
+CONFIG_I2C_MUX=y
+CONFIG_I2C_MUX_PCA954x=y
 # CONFIG_MMC is not set
 CONFIG_MTD=y
 CONFIG_MTD_NOR_FLASH=y

configs/pg_wcom_seli8_defconfig

···
 CONFIG_ENV_SOURCE_FILE="pg-wcom-seli8"
 CONFIG_ENV_SIZE=0x4000
 CONFIG_ENV_SECT_SIZE=0x20000
-CONFIG_SYS_I2C_MXC_I2C1=y
-CONFIG_SYS_I2C_MXC_I2C2=y
-CONFIG_SYS_I2C_MXC_I2C3=y
+CONFIG_DM_GPIO=y
 CONFIG_DEFAULT_DEVICE_TREE="ls1021a-pg-wcom-seli8"
 CONFIG_SYS_MONITOR_LEN=1048576
 CONFIG_BOOTCOUNT_BOOTLIMIT=3
···
 CONFIG_SYS_BOOTCOUNT_BE=y
 CONFIG_DDR_CLK_FREQ=50000000
 CONFIG_SYS_FSL_DDR3=y
-CONFIG_SYS_I2C_LEGACY=y
+CONFIG_DM_I2C=y
+CONFIG_I2C_MUX=y
+CONFIG_I2C_MUX_PCA954x=y
 # CONFIG_MMC is not set
 CONFIG_MTD=y
 CONFIG_MTD_NOR_FLASH=y

configs/pg_wcom_seli8_update_defconfig

···
 CONFIG_ENV_SOURCE_FILE="pg-wcom-seli8"
 CONFIG_ENV_SIZE=0x4000
 CONFIG_ENV_SECT_SIZE=0x20000
-CONFIG_SYS_I2C_MXC_I2C1=y
-CONFIG_SYS_I2C_MXC_I2C2=y
-CONFIG_SYS_I2C_MXC_I2C3=y
+CONFIG_DM_GPIO=y
 CONFIG_DEFAULT_DEVICE_TREE="ls1021a-pg-wcom-seli8"
 CONFIG_SYS_MONITOR_LEN=1048576
 CONFIG_BOOTCOUNT_BOOTLIMIT=3
···
 CONFIG_SYS_BOOTCOUNT_BE=y
 CONFIG_DDR_CLK_FREQ=50000000
 CONFIG_SYS_FSL_DDR3=y
-CONFIG_SYS_I2C_LEGACY=y
+CONFIG_DM_I2C=y
+CONFIG_I2C_MUX=y
+CONFIG_I2C_MUX_PCA954x=y
 # CONFIG_MMC is not set
 CONFIG_MTD=y
 CONFIG_MTD_NOR_FLASH=y

include/configs/km/pg-wcom-ls102xa.h

···
  */
 #define CFG_SYS_NS16550_CLK		get_serial_clock()
 
-/*
- * I2C
- */
-
-#define CFG_SYS_I2C_MAX_HOPS		1
-#define CFG_SYS_NUM_I2C_BUSES	3
-#define I2C_MUX_PCA_ADDR		0x70
-#define I2C_MUX_CH_DEFAULT		0x0
-#define CFG_SYS_I2C_BUSES	{	{0, {I2C_NULL_HOP} }, \
-					{0, {{I2C_MUX_PCA9547, 0x70, 1 } } }, \
-					{1, {I2C_NULL_HOP}                 }, \
-				}
-
 #define CFG_SMP_PEN_ADDR		0x01ee0200
 
 #define HWCONFIG_BUFFER_SIZE		256