diff mbox series

[RESEND,v8,6/8] dm: arm64: ls1043a: add i2c DM support

Message ID 20200205140217.15414-1-biwen.li@nxp.com
State Awaiting Upstream
Delegated to: Priyanka Jain
Headers show
Series None | expand

Commit Message

Biwen Li Feb. 5, 2020, 2:02 p.m. UTC 
This supports i2c DM and enables CONFIG_DM_I2C
for SoC LS1043A

Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
Signed-off-by: Biwen Li <biwen.li@nxp.com>
---
Changes in RESEND v8:
	- fix build warning

Changes in v8:
	- none

Changes in v7:
	- none

Changes in v6:
	- correct dependencies

Changes in v5:
	- update subject

Changes in v4:
	- update copyright

Changes in v3:
	- none

Changes in v2:
	- merge some patches to one patch

 arch/arm/cpu/armv8/fsl-layerscape/Kconfig     | 10 +-
 arch/arm/include/asm/gpio.h                   |  4 +-
 board/freescale/ls1043aqds/ls1043aqds.c       | 98 +++++++++++++++++--
 configs/ls1043aqds_defconfig                  |  2 +
 configs/ls1043aqds_lpuart_defconfig           |  2 +
 configs/ls1043aqds_nand_defconfig             |  2 +
 configs/ls1043aqds_nor_ddr3_defconfig         |  2 +
 configs/ls1043aqds_qspi_defconfig             |  2 +
 configs/ls1043aqds_sdcard_ifc_defconfig       |  2 +
 configs/ls1043aqds_sdcard_qspi_defconfig      |  2 +
 configs/ls1043aqds_tfa_SECURE_BOOT_defconfig  |  2 +
 configs/ls1043aqds_tfa_defconfig              |  2 +
 configs/ls1043ardb_SECURE_BOOT_defconfig      |  2 +
 configs/ls1043ardb_defconfig                  |  2 +
 configs/ls1043ardb_nand_SECURE_BOOT_defconfig |  2 +
 configs/ls1043ardb_nand_defconfig             |  2 +
 .../ls1043ardb_sdcard_SECURE_BOOT_defconfig   |  2 +
 configs/ls1043ardb_sdcard_defconfig           |  2 +
 configs/ls1043ardb_tfa_SECURE_BOOT_defconfig  |  2 +
 configs/ls1043ardb_tfa_defconfig              |  2 +
 include/configs/ls1043a_common.h              | 11 +++
 21 files changed, 144 insertions(+), 13 deletions(-)

Comments

Biwen Li March 4, 2020, 3:57 a.m. UTC | #1 
> 
> This supports i2c DM and enables CONFIG_DM_I2C for SoC LS1043A
Hi Priyanka,

Any coments?

Best Regards,
Biwen Li
> 
> Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
> Signed-off-by: Biwen Li <biwen.li@nxp.com>
> ---
> Changes in RESEND v8:
> 	- fix build warning
> 
> Changes in v8:
> 	- none
> 
> Changes in v7:
> 	- none
> 
> Changes in v6:
> 	- correct dependencies
> 
> Changes in v5:
> 	- update subject
> 
> Changes in v4:
> 	- update copyright
> 
> Changes in v3:
> 	- none
> 
> Changes in v2:
> 	- merge some patches to one patch
> 
>  arch/arm/cpu/armv8/fsl-layerscape/Kconfig     | 10 +-
>  arch/arm/include/asm/gpio.h                   |  4 +-
>  board/freescale/ls1043aqds/ls1043aqds.c       | 98
> +++++++++++++++++--
>  configs/ls1043aqds_defconfig                  |  2 +
>  configs/ls1043aqds_lpuart_defconfig           |  2 +
>  configs/ls1043aqds_nand_defconfig             |  2 +
>  configs/ls1043aqds_nor_ddr3_defconfig         |  2 +
>  configs/ls1043aqds_qspi_defconfig             |  2 +
>  configs/ls1043aqds_sdcard_ifc_defconfig       |  2 +
>  configs/ls1043aqds_sdcard_qspi_defconfig      |  2 +
>  configs/ls1043aqds_tfa_SECURE_BOOT_defconfig  |  2 +
>  configs/ls1043aqds_tfa_defconfig              |  2 +
>  configs/ls1043ardb_SECURE_BOOT_defconfig      |  2 +
>  configs/ls1043ardb_defconfig                  |  2 +
>  configs/ls1043ardb_nand_SECURE_BOOT_defconfig |  2 +
>  configs/ls1043ardb_nand_defconfig             |  2 +
>  .../ls1043ardb_sdcard_SECURE_BOOT_defconfig   |  2 +
>  configs/ls1043ardb_sdcard_defconfig           |  2 +
>  configs/ls1043ardb_tfa_SECURE_BOOT_defconfig  |  2 +
>  configs/ls1043ardb_tfa_defconfig              |  2 +
>  include/configs/ls1043a_common.h              | 11 +++
>  21 files changed, 144 insertions(+), 13 deletions(-)
> 
> diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
> b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
> index 275c66d992..760053e401 100644
> --- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
> +++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
> @@ -74,11 +74,11 @@ config ARCH_LS1043A
>  	select SYS_FSL_HAS_DDR4
>  	select ARCH_EARLY_INIT_R
>  	select BOARD_EARLY_INIT_F
> -	select SYS_I2C_MXC
> -	select SYS_I2C_MXC_I2C1
> -	select SYS_I2C_MXC_I2C2
> -	select SYS_I2C_MXC_I2C3
> -	select SYS_I2C_MXC_I2C4
> +	select SYS_I2C_MXC if !DM_I2C
> +	select SYS_I2C_MXC_I2C1 if !DM_I2C
> +	select SYS_I2C_MXC_I2C2 if !DM_I2C
> +	select SYS_I2C_MXC_I2C3 if !DM_I2C
> +	select SYS_I2C_MXC_I2C4 if !DM_I2C
>  	imply CMD_PCI
> 
>  config ARCH_LS1046A
> diff --git a/arch/arm/include/asm/gpio.h b/arch/arm/include/asm/gpio.h
> index 29dc498bd8..c480e712fe 100644
> --- a/arch/arm/include/asm/gpio.h
> +++ b/arch/arm/include/asm/gpio.h
> @@ -3,8 +3,8 @@
>  	!defined(CONFIG_ARCH_BCM6858)
> && !defined(CONFIG_ARCH_BCM63158) && \
>  	!defined(CONFIG_ARCH_ROCKCHIP)
> && !defined(CONFIG_ARCH_LX2160A) && \
>  	!defined(CONFIG_ARCH_LS1012A) && !defined(CONFIG_ARCH_LS1028A)
> && \
> -       	!defined(CONFIG_ARCH_LS2080A)
> && !defined(CONFIG_ARCH_LS1088A) && \
> -	!defined(CONFIG_ARCH_ASPEED) && \
> +	!defined(CONFIG_ARCH_LS1043A) && !defined(CONFIG_ARCH_LS2080A)
> && \
> +	!defined(CONFIG_ARCH_LS1088A) && !defined(CONFIG_ARCH_ASPEED)
> && \
>  	!defined(CONFIG_ARCH_U8500)
>  #include <asm/arch/gpio.h>
>  #endif
> diff --git a/board/freescale/ls1043aqds/ls1043aqds.c
> b/board/freescale/ls1043aqds/ls1043aqds.c
> index 8c96b962b7..2d4b18cdbc 100644
> --- a/board/freescale/ls1043aqds/ls1043aqds.c
> +++ b/board/freescale/ls1043aqds/ls1043aqds.c
> @@ -1,6 +1,7 @@
>  // SPDX-License-Identifier: GPL-2.0+
>  /*
>   * Copyright 2015 Freescale Semiconductor, Inc.
> + * Copyright 2019 NXP
>   */
> 
>  #include <common.h>
> @@ -271,11 +272,24 @@ unsigned long get_board_ddr_clk(void)
>  	return 66666666;
>  }
> 
> -int select_i2c_ch_pca9547(u8 ch)
> +int select_i2c_ch_pca9547(u8 ch, int bus_num)
>  {
>  	int ret;
> 
> +#ifdef CONFIG_DM_I2C
> +	struct udevice *dev;
> +
> +	ret = i2c_get_chip_for_busnum(bus_num, I2C_MUX_PCA_ADDR_PRI,
> +				      1, &dev);
> +	if (ret) {
> +		printf("%s: Cannot find udev for a bus %d\n", __func__,
> +		       bus_num);
> +		return ret;
> +	}
> +	ret = dm_i2c_write(dev, 0, &ch, 1);
> +#else
>  	ret = i2c_write(I2C_MUX_PCA_ADDR_PRI, 0, 1, &ch, 1);
> +#endif
>  	if (ret) {
>  		puts("PCA: failed to select proper channel\n");
>  		return ret;
> @@ -290,8 +304,10 @@ int dram_init(void)
>  	 * When resuming from deep sleep, the I2C channel may not be
>  	 * in the default channel. So, switch to the default channel
>  	 * before accessing DDR SPD.
> +	 *
> +	 * PCA9547 mount on I2C1 bus
>  	 */
> -	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
> +	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT, 0);
>  	fsl_initdram();
>  #if (!defined(CONFIG_SPL) && !defined(CONFIG_TFABOOT)) || \
>  	defined(CONFIG_SPL_BUILD)
> @@ -304,16 +320,83 @@ int dram_init(void)
> 
>  int i2c_multiplexer_select_vid_channel(u8 channel)  {
> -	return select_i2c_ch_pca9547(channel);
> +	return select_i2c_ch_pca9547(channel, 0);
>  }
> 
>  void board_retimer_init(void)
>  {
>  	u8 reg;
> +	int bus_num = 0;
> 
>  	/* Retimer is connected to I2C1_CH7_CH5 */
> -	select_i2c_ch_pca9547(I2C_MUX_CH7);
> +	select_i2c_ch_pca9547(I2C_MUX_CH7, bus_num);
>  	reg = I2C_MUX_CH5;
> +#ifdef CONFIG_DM_I2C
> +	struct udevice *dev;
> +	int ret;
> +
> +	ret = i2c_get_chip_for_busnum(bus_num, I2C_MUX_PCA_ADDR_SEC,
> +				      1, &dev);
> +	if (ret) {
> +		printf("%s: Cannot find udev for a bus %d\n", __func__,
> +		       bus_num);
> +		return;
> +	}
> +	dm_i2c_write(dev, 0, &reg, 1);
> +
> +	/* Access to Control/Shared register */
> +	ret = i2c_get_chip_for_busnum(bus_num, I2C_RETIMER_ADDR,
> +				      1, &dev);
> +	if (ret) {
> +		printf("%s: Cannot find udev for a bus %d\n", __func__,
> +		       bus_num);
> +		return;
> +	}
> +
> +	reg = 0x0;
> +	dm_i2c_write(dev, 0xff, &reg, 1);
> +
> +	/* Read device revision and ID */
> +	dm_i2c_read(dev, 1, &reg, 1);
> +	debug("Retimer version id = 0x%x\n", reg);
> +
> +	/* Enable Broadcast. All writes target all channel register sets */
> +	reg = 0x0c;
> +	dm_i2c_write(dev, 0xff, &reg, 1);
> +
> +	/* Reset Channel Registers */
> +	dm_i2c_read(dev, 0, &reg, 1);
> +	reg |= 0x4;
> +	dm_i2c_write(dev, 0, &reg, 1);
> +
> +	/* Enable override divider select and Enable Override Output Mux */
> +	dm_i2c_read(dev, 9, &reg, 1);
> +	reg |= 0x24;
> +	dm_i2c_write(dev, 9, &reg, 1);
> +
> +	/* Select VCO Divider to full rate (000) */
> +	dm_i2c_read(dev, 0x18, &reg, 1);
> +	reg &= 0x8f;
> +	dm_i2c_write(dev, 0x18, &reg, 1);
> +
> +	/* Selects active PFD MUX Input as Re-timed Data (001) */
> +	dm_i2c_read(dev, 0x1e, &reg, 1);
> +	reg &= 0x3f;
> +	reg |= 0x20;
> +	dm_i2c_write(dev, 0x1e, &reg, 1);
> +
> +	/* Set data rate as 10.3125 Gbps */
> +	reg = 0x0;
> +	dm_i2c_write(dev, 0x60, &reg, 1);
> +	reg = 0xb2;
> +	dm_i2c_write(dev, 0x61, &reg, 1);
> +	reg = 0x90;
> +	dm_i2c_write(dev, 0x62, &reg, 1);
> +	reg = 0xb3;
> +	dm_i2c_write(dev, 0x63, &reg, 1);
> +	reg = 0xcd;
> +	dm_i2c_write(dev, 0x64, &reg, 1);
> +#else
>  	i2c_write(I2C_MUX_PCA_ADDR_SEC, 0, 1, &reg, 1);
> 
>  	/* Access to Control/Shared register */ @@ -360,9 +443,10 @@ void
> board_retimer_init(void)
>  	i2c_write(I2C_RETIMER_ADDR, 0x63, 1, &reg, 1);
>  	reg = 0xcd;
>  	i2c_write(I2C_RETIMER_ADDR, 0x64, 1, &reg, 1);
> +#endif
> 
>  	/* Return the default channel */
> -	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
> +	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT, bus_num);
>  }
> 
>  int board_early_init_f(void)
> @@ -375,8 +459,10 @@ int board_early_init_f(void)
>  	u8 uart;
>  #endif
> 
> +#ifdef CONFIG_SYS_I2C
>  #ifdef CONFIG_SYS_I2C_EARLY_INIT
>  	i2c_early_init_f();
> +#endif
>  #endif
>  	fsl_lsch2_early_init_f();
> 
> @@ -457,7 +543,7 @@ int board_init(void)
>  	erratum_a010315();
>  #endif
> 
> -	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
> +	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT, 0);
>  	board_retimer_init();
> 
>  #ifdef CONFIG_SYS_FSL_SERDES
> diff --git a/configs/ls1043aqds_defconfig b/configs/ls1043aqds_defconfig
> index 2885552ef3..93b86af607 100644
> --- a/configs/ls1043aqds_defconfig
> +++ b/configs/ls1043aqds_defconfig
> @@ -62,3 +62,5 @@ CONFIG_DM_USB=y
>  CONFIG_USB_XHCI_HCD=y
>  CONFIG_USB_XHCI_DWC3=y
>  CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
> +CONFIG_DM_I2C=y
> +CONFIG_DM_GPIO=y
> diff --git a/configs/ls1043aqds_lpuart_defconfig
> b/configs/ls1043aqds_lpuart_defconfig
> index 9d9229ac03..f89c2ee3a4 100644
> --- a/configs/ls1043aqds_lpuart_defconfig
> +++ b/configs/ls1043aqds_lpuart_defconfig
> @@ -64,3 +64,5 @@ CONFIG_DM_USB=y
>  CONFIG_USB_XHCI_HCD=y
>  CONFIG_USB_XHCI_DWC3=y
>  CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
> +CONFIG_DM_I2C=y
> +CONFIG_DM_GPIO=y
> diff --git a/configs/ls1043aqds_nand_defconfig
> b/configs/ls1043aqds_nand_defconfig
> index c45eaea02a..a169bfef8f 100644
> --- a/configs/ls1043aqds_nand_defconfig
> +++ b/configs/ls1043aqds_nand_defconfig
> @@ -78,3 +78,5 @@ CONFIG_DM_USB=y
>  CONFIG_USB_XHCI_HCD=y
>  CONFIG_USB_XHCI_DWC3=y
>  CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
> +CONFIG_DM_I2C=y
> +CONFIG_DM_GPIO=y
> diff --git a/configs/ls1043aqds_nor_ddr3_defconfig
> b/configs/ls1043aqds_nor_ddr3_defconfig
> index 8d28fe1baf..01d0af30b1 100644
> --- a/configs/ls1043aqds_nor_ddr3_defconfig
> +++ b/configs/ls1043aqds_nor_ddr3_defconfig
> @@ -63,3 +63,5 @@ CONFIG_DM_USB=y
>  CONFIG_USB_XHCI_HCD=y
>  CONFIG_USB_XHCI_DWC3=y
>  CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
> +CONFIG_DM_I2C=y
> +CONFIG_DM_GPIO=y
> diff --git a/configs/ls1043aqds_qspi_defconfig
> b/configs/ls1043aqds_qspi_defconfig
> index 86b2eb56b8..65eff7c40b 100644
> --- a/configs/ls1043aqds_qspi_defconfig
> +++ b/configs/ls1043aqds_qspi_defconfig
> @@ -58,3 +58,5 @@ CONFIG_DM_USB=y
>  CONFIG_USB_XHCI_HCD=y
>  CONFIG_USB_XHCI_DWC3=y
>  CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
> +CONFIG_DM_I2C=y
> +CONFIG_DM_GPIO=y
> diff --git a/configs/ls1043aqds_sdcard_ifc_defconfig
> b/configs/ls1043aqds_sdcard_ifc_defconfig
> index bf3f0d0990..c5042a345d 100644
> --- a/configs/ls1043aqds_sdcard_ifc_defconfig
> +++ b/configs/ls1043aqds_sdcard_ifc_defconfig
> @@ -79,3 +79,5 @@ CONFIG_DM_USB=y
>  CONFIG_USB_XHCI_HCD=y
>  CONFIG_USB_XHCI_DWC3=y
>  CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
> +CONFIG_DM_I2C=y
> +CONFIG_DM_GPIO=y
> diff --git a/configs/ls1043aqds_sdcard_qspi_defconfig
> b/configs/ls1043aqds_sdcard_qspi_defconfig
> index 0449469b89..12706a48dc 100644
> --- a/configs/ls1043aqds_sdcard_qspi_defconfig
> +++ b/configs/ls1043aqds_sdcard_qspi_defconfig
> @@ -72,3 +72,5 @@ CONFIG_DM_USB=y
>  CONFIG_USB_XHCI_HCD=y
>  CONFIG_USB_XHCI_DWC3=y
>  CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
> +CONFIG_DM_I2C=y
> +CONFIG_DM_GPIO=y
> diff --git a/configs/ls1043aqds_tfa_SECURE_BOOT_defconfig
> b/configs/ls1043aqds_tfa_SECURE_BOOT_defconfig
> index 4ba5a8dd95..bbd01eb290 100644
> --- a/configs/ls1043aqds_tfa_SECURE_BOOT_defconfig
> +++ b/configs/ls1043aqds_tfa_SECURE_BOOT_defconfig
> @@ -64,3 +64,5 @@ CONFIG_SPL_RSA=y
>  CONFIG_RSA_SOFTWARE_EXP=y
>  CONFIG_CMD_SETEXPR=y
>  CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
> +CONFIG_DM_I2C=y
> +CONFIG_DM_GPIO=y
> diff --git a/configs/ls1043aqds_tfa_defconfig
> b/configs/ls1043aqds_tfa_defconfig
> index 24db72a39d..6e594ed07c 100644
> --- a/configs/ls1043aqds_tfa_defconfig
> +++ b/configs/ls1043aqds_tfa_defconfig
> @@ -71,3 +71,5 @@ CONFIG_DM_USB=y
>  CONFIG_USB_XHCI_HCD=y
>  CONFIG_USB_XHCI_DWC3=y
>  CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
> +CONFIG_DM_I2C=y
> +CONFIG_DM_GPIO=y
> diff --git a/configs/ls1043ardb_SECURE_BOOT_defconfig
> b/configs/ls1043ardb_SECURE_BOOT_defconfig
> index 5e030e2586..153a62866f 100644
> --- a/configs/ls1043ardb_SECURE_BOOT_defconfig
> +++ b/configs/ls1043ardb_SECURE_BOOT_defconfig
> @@ -55,3 +55,5 @@ CONFIG_RSA=y
>  CONFIG_SPL_RSA=y
>  CONFIG_RSA_SOFTWARE_EXP=y
>  CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
> +CONFIG_DM_I2C=y
> +CONFIG_DM_GPIO=y
> diff --git a/configs/ls1043ardb_defconfig b/configs/ls1043ardb_defconfig
> index 0676cbccdd..d1e534388b 100644
> --- a/configs/ls1043ardb_defconfig
> +++ b/configs/ls1043ardb_defconfig
> @@ -55,3 +55,5 @@ CONFIG_DM_USB=y
>  CONFIG_USB_XHCI_HCD=y
>  CONFIG_USB_XHCI_DWC3=y
>  CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
> +CONFIG_DM_I2C=y
> +CONFIG_DM_GPIO=y
> diff --git a/configs/ls1043ardb_nand_SECURE_BOOT_defconfig
> b/configs/ls1043ardb_nand_SECURE_BOOT_defconfig
> index 1f4c5705d5..252c7c8313 100644
> --- a/configs/ls1043ardb_nand_SECURE_BOOT_defconfig
> +++ b/configs/ls1043ardb_nand_SECURE_BOOT_defconfig
> @@ -75,3 +75,5 @@ CONFIG_USB_XHCI_DWC3=y  CONFIG_RSA=y
> CONFIG_SPL_RSA=y  CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
> +CONFIG_DM_I2C=y
> +CONFIG_DM_GPIO=y
> diff --git a/configs/ls1043ardb_nand_defconfig
> b/configs/ls1043ardb_nand_defconfig
> index e7fe2de309..de18aaa063 100644
> --- a/configs/ls1043ardb_nand_defconfig
> +++ b/configs/ls1043ardb_nand_defconfig
> @@ -74,3 +74,5 @@ CONFIG_USB_XHCI_HCD=y
>  CONFIG_USB_XHCI_DWC3=y
>  # CONFIG_SPL_USE_TINY_PRINTF is not set
> CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
> +CONFIG_DM_I2C=y
> +CONFIG_DM_GPIO=y
> diff --git a/configs/ls1043ardb_sdcard_SECURE_BOOT_defconfig
> b/configs/ls1043ardb_sdcard_SECURE_BOOT_defconfig
> index 6529c7334c..149b25ffe5 100644
> --- a/configs/ls1043ardb_sdcard_SECURE_BOOT_defconfig
> +++ b/configs/ls1043ardb_sdcard_SECURE_BOOT_defconfig
> @@ -74,3 +74,5 @@ CONFIG_USB_XHCI_DWC3=y  CONFIG_RSA=y
> CONFIG_SPL_RSA=y  CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
> +CONFIG_DM_I2C=y
> +CONFIG_DM_GPIO=y
> diff --git a/configs/ls1043ardb_sdcard_defconfig
> b/configs/ls1043ardb_sdcard_defconfig
> index 228262477c..b386fc668c 100644
> --- a/configs/ls1043ardb_sdcard_defconfig
> +++ b/configs/ls1043ardb_sdcard_defconfig
> @@ -73,3 +73,5 @@ CONFIG_USB_XHCI_HCD=y
>  CONFIG_USB_XHCI_DWC3=y
>  # CONFIG_SPL_USE_TINY_PRINTF is not set
> CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
> +CONFIG_DM_I2C=y
> +CONFIG_DM_GPIO=y
> diff --git a/configs/ls1043ardb_tfa_SECURE_BOOT_defconfig
> b/configs/ls1043ardb_tfa_SECURE_BOOT_defconfig
> index 83bfca078b..017ec5ea7a 100644
> --- a/configs/ls1043ardb_tfa_SECURE_BOOT_defconfig
> +++ b/configs/ls1043ardb_tfa_SECURE_BOOT_defconfig
> @@ -57,3 +57,5 @@ CONFIG_SPL_RSA=y
>  CONFIG_RSA_SOFTWARE_EXP=y
>  CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
>  CONFIG_CMD_SETEXPR=y
> +CONFIG_DM_I2C=y
> +CONFIG_DM_GPIO=y
> diff --git a/configs/ls1043ardb_tfa_defconfig
> b/configs/ls1043ardb_tfa_defconfig
> index 4154075986..eaddbca79f 100644
> --- a/configs/ls1043ardb_tfa_defconfig
> +++ b/configs/ls1043ardb_tfa_defconfig
> @@ -59,3 +59,5 @@ CONFIG_DM_USB=y
>  CONFIG_USB_XHCI_HCD=y
>  CONFIG_USB_XHCI_DWC3=y
>  CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
> +CONFIG_DM_I2C=y
> +CONFIG_DM_GPIO=y
> diff --git a/include/configs/ls1043a_common.h
> b/include/configs/ls1043a_common.h
> index bf24d4036d..985f40412c 100644
> --- a/include/configs/ls1043a_common.h
> +++ b/include/configs/ls1043a_common.h
> @@ -1,6 +1,7 @@
>  /* SPDX-License-Identifier: GPL-2.0+ */
>  /*
>   * Copyright (C) 2015 Freescale Semiconductor
> + * Copyright (C) 2019 NXP
>   */
> 
>  #ifndef __LS1043A_COMMON_H
> @@ -141,7 +142,17 @@
>  #endif
> 
>  /* I2C */
> +#ifndef CONFIG_DM_I2C
>  #define CONFIG_SYS_I2C
> +#define CONFIG_SYS_I2C_MXC
> +#define CONFIG_SYS_I2C_MXC_I2C1		/* enable I2C bus 1 */
> +#define CONFIG_SYS_I2C_MXC_I2C2		/* enable I2C bus 2 */
> +#define CONFIG_SYS_I2C_MXC_I2C3		/* enable I2C bus 3 */
> +#define CONFIG_SYS_I2C_MXC_I2C4		/* enable I2C bus 4 */
> +#else
> +#define CONFIG_I2C_SET_DEFAULT_BUS_NUM
> +#define CONFIG_I2C_DEFAULT_BUS_NUMBER 0 #endif
> 
>  /* PCIe */
>  #ifndef SPL_NO_PCIE
> --
> 2.17.1
Priyanka Jain (OSS) March 30, 2020, 12:15 p.m. UTC | #2 
>-----Original Message-----
>From: U-Boot <u-boot-bounces@lists.denx.de> On Behalf Of Biwen Li
>Sent: Wednesday, February 5, 2020 7:32 PM
>To: Jagdish Gediya <jagdish.gediya@nxp.com>; Priyanka Jain
><priyanka.jain@nxp.com>; hs@denx.de; jagan@amarulasolutions.com;
>aford173@gmail.com; Alison Wang <alison.wang@nxp.com>;
>jh80.chung@samsung.com; Pramod Kumar <pramod.kumar_1@nxp.com>;
>Rajesh Bhagat <rajesh.bhagat@nxp.com>; Ruchika Gupta
><ruchika.gupta@nxp.com>; olteanv@gmail.com
>Cc: u-boot@lists.denx.de; Jiafei Pan <jiafei.pan@nxp.com>; Xiaobo Xie
><xiaobo.xie@nxp.com>
>Subject: [RESEND v8 6/8] dm: arm64: ls1043a: add i2c DM support
>
>This supports i2c DM and enables CONFIG_DM_I2C for SoC LS1043A
>
>Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
>Signed-off-by: Biwen Li <biwen.li@nxp.com>
>---
6/8, 7/8 applied to u-boot-fsl-qoriq after rebasing. Waiting upstream

Thanks
Priyanka
diff mbox series

Patch

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
index 275c66d992..760053e401 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
+++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
@@ -74,11 +74,11 @@  config ARCH_LS1043A
 	select SYS_FSL_HAS_DDR4
 	select ARCH_EARLY_INIT_R
 	select BOARD_EARLY_INIT_F
-	select SYS_I2C_MXC
-	select SYS_I2C_MXC_I2C1
-	select SYS_I2C_MXC_I2C2
-	select SYS_I2C_MXC_I2C3
-	select SYS_I2C_MXC_I2C4
+	select SYS_I2C_MXC if !DM_I2C
+	select SYS_I2C_MXC_I2C1 if !DM_I2C
+	select SYS_I2C_MXC_I2C2 if !DM_I2C
+	select SYS_I2C_MXC_I2C3 if !DM_I2C
+	select SYS_I2C_MXC_I2C4 if !DM_I2C
 	imply CMD_PCI
 
 config ARCH_LS1046A
diff --git a/arch/arm/include/asm/gpio.h b/arch/arm/include/asm/gpio.h
index 29dc498bd8..c480e712fe 100644
--- a/arch/arm/include/asm/gpio.h
+++ b/arch/arm/include/asm/gpio.h
@@ -3,8 +3,8 @@ 
 	!defined(CONFIG_ARCH_BCM6858) && !defined(CONFIG_ARCH_BCM63158) && \
 	!defined(CONFIG_ARCH_ROCKCHIP) && !defined(CONFIG_ARCH_LX2160A) && \
 	!defined(CONFIG_ARCH_LS1012A) && !defined(CONFIG_ARCH_LS1028A) && \
-       	!defined(CONFIG_ARCH_LS2080A) && !defined(CONFIG_ARCH_LS1088A) && \
-	!defined(CONFIG_ARCH_ASPEED) && \
+	!defined(CONFIG_ARCH_LS1043A) && !defined(CONFIG_ARCH_LS2080A) && \
+	!defined(CONFIG_ARCH_LS1088A) && !defined(CONFIG_ARCH_ASPEED) && \
 	!defined(CONFIG_ARCH_U8500)
 #include <asm/arch/gpio.h>
 #endif
diff --git a/board/freescale/ls1043aqds/ls1043aqds.c b/board/freescale/ls1043aqds/ls1043aqds.c
index 8c96b962b7..2d4b18cdbc 100644
--- a/board/freescale/ls1043aqds/ls1043aqds.c
+++ b/board/freescale/ls1043aqds/ls1043aqds.c
@@ -1,6 +1,7 @@ 
 // SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2015 Freescale Semiconductor, Inc.
+ * Copyright 2019 NXP
  */
 
 #include <common.h>
@@ -271,11 +272,24 @@  unsigned long get_board_ddr_clk(void)
 	return 66666666;
 }
 
-int select_i2c_ch_pca9547(u8 ch)
+int select_i2c_ch_pca9547(u8 ch, int bus_num)
 {
 	int ret;
 
+#ifdef CONFIG_DM_I2C
+	struct udevice *dev;
+
+	ret = i2c_get_chip_for_busnum(bus_num, I2C_MUX_PCA_ADDR_PRI,
+				      1, &dev);
+	if (ret) {
+		printf("%s: Cannot find udev for a bus %d\n", __func__,
+		       bus_num);
+		return ret;
+	}
+	ret = dm_i2c_write(dev, 0, &ch, 1);
+#else
 	ret = i2c_write(I2C_MUX_PCA_ADDR_PRI, 0, 1, &ch, 1);
+#endif
 	if (ret) {
 		puts("PCA: failed to select proper channel\n");
 		return ret;
@@ -290,8 +304,10 @@  int dram_init(void)
 	 * When resuming from deep sleep, the I2C channel may not be
 	 * in the default channel. So, switch to the default channel
 	 * before accessing DDR SPD.
+	 *
+	 * PCA9547 mount on I2C1 bus
 	 */
-	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
+	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT, 0);
 	fsl_initdram();
 #if (!defined(CONFIG_SPL) && !defined(CONFIG_TFABOOT)) || \
 	defined(CONFIG_SPL_BUILD)
@@ -304,16 +320,83 @@  int dram_init(void)
 
 int i2c_multiplexer_select_vid_channel(u8 channel)
 {
-	return select_i2c_ch_pca9547(channel);
+	return select_i2c_ch_pca9547(channel, 0);
 }
 
 void board_retimer_init(void)
 {
 	u8 reg;
+	int bus_num = 0;
 
 	/* Retimer is connected to I2C1_CH7_CH5 */
-	select_i2c_ch_pca9547(I2C_MUX_CH7);
+	select_i2c_ch_pca9547(I2C_MUX_CH7, bus_num);
 	reg = I2C_MUX_CH5;
+#ifdef CONFIG_DM_I2C
+	struct udevice *dev;
+	int ret;
+
+	ret = i2c_get_chip_for_busnum(bus_num, I2C_MUX_PCA_ADDR_SEC,
+				      1, &dev);
+	if (ret) {
+		printf("%s: Cannot find udev for a bus %d\n", __func__,
+		       bus_num);
+		return;
+	}
+	dm_i2c_write(dev, 0, &reg, 1);
+
+	/* Access to Control/Shared register */
+	ret = i2c_get_chip_for_busnum(bus_num, I2C_RETIMER_ADDR,
+				      1, &dev);
+	if (ret) {
+		printf("%s: Cannot find udev for a bus %d\n", __func__,
+		       bus_num);
+		return;
+	}
+
+	reg = 0x0;
+	dm_i2c_write(dev, 0xff, &reg, 1);
+
+	/* Read device revision and ID */
+	dm_i2c_read(dev, 1, &reg, 1);
+	debug("Retimer version id = 0x%x\n", reg);
+
+	/* Enable Broadcast. All writes target all channel register sets */
+	reg = 0x0c;
+	dm_i2c_write(dev, 0xff, &reg, 1);
+
+	/* Reset Channel Registers */
+	dm_i2c_read(dev, 0, &reg, 1);
+	reg |= 0x4;
+	dm_i2c_write(dev, 0, &reg, 1);
+
+	/* Enable override divider select and Enable Override Output Mux */
+	dm_i2c_read(dev, 9, &reg, 1);
+	reg |= 0x24;
+	dm_i2c_write(dev, 9, &reg, 1);
+
+	/* Select VCO Divider to full rate (000) */
+	dm_i2c_read(dev, 0x18, &reg, 1);
+	reg &= 0x8f;
+	dm_i2c_write(dev, 0x18, &reg, 1);
+
+	/* Selects active PFD MUX Input as Re-timed Data (001) */
+	dm_i2c_read(dev, 0x1e, &reg, 1);
+	reg &= 0x3f;
+	reg |= 0x20;
+	dm_i2c_write(dev, 0x1e, &reg, 1);
+
+	/* Set data rate as 10.3125 Gbps */
+	reg = 0x0;
+	dm_i2c_write(dev, 0x60, &reg, 1);
+	reg = 0xb2;
+	dm_i2c_write(dev, 0x61, &reg, 1);
+	reg = 0x90;
+	dm_i2c_write(dev, 0x62, &reg, 1);
+	reg = 0xb3;
+	dm_i2c_write(dev, 0x63, &reg, 1);
+	reg = 0xcd;
+	dm_i2c_write(dev, 0x64, &reg, 1);
+#else
 	i2c_write(I2C_MUX_PCA_ADDR_SEC, 0, 1, &reg, 1);
 
 	/* Access to Control/Shared register */
@@ -360,9 +443,10 @@  void board_retimer_init(void)
 	i2c_write(I2C_RETIMER_ADDR, 0x63, 1, &reg, 1);
 	reg = 0xcd;
 	i2c_write(I2C_RETIMER_ADDR, 0x64, 1, &reg, 1);
+#endif
 
 	/* Return the default channel */
-	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
+	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT, bus_num);
 }
 
 int board_early_init_f(void)
@@ -375,8 +459,10 @@  int board_early_init_f(void)
 	u8 uart;
 #endif
 
+#ifdef CONFIG_SYS_I2C
 #ifdef CONFIG_SYS_I2C_EARLY_INIT
 	i2c_early_init_f();
+#endif
 #endif
 	fsl_lsch2_early_init_f();
 
@@ -457,7 +543,7 @@  int board_init(void)
 	erratum_a010315();
 #endif
 
-	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
+	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT, 0);
 	board_retimer_init();
 
 #ifdef CONFIG_SYS_FSL_SERDES
diff --git a/configs/ls1043aqds_defconfig b/configs/ls1043aqds_defconfig
index 2885552ef3..93b86af607 100644
--- a/configs/ls1043aqds_defconfig
+++ b/configs/ls1043aqds_defconfig
@@ -62,3 +62,5 @@  CONFIG_DM_USB=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_DWC3=y
 CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
+CONFIG_DM_I2C=y
+CONFIG_DM_GPIO=y
diff --git a/configs/ls1043aqds_lpuart_defconfig b/configs/ls1043aqds_lpuart_defconfig
index 9d9229ac03..f89c2ee3a4 100644
--- a/configs/ls1043aqds_lpuart_defconfig
+++ b/configs/ls1043aqds_lpuart_defconfig
@@ -64,3 +64,5 @@  CONFIG_DM_USB=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_DWC3=y
 CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
+CONFIG_DM_I2C=y
+CONFIG_DM_GPIO=y
diff --git a/configs/ls1043aqds_nand_defconfig b/configs/ls1043aqds_nand_defconfig
index c45eaea02a..a169bfef8f 100644
--- a/configs/ls1043aqds_nand_defconfig
+++ b/configs/ls1043aqds_nand_defconfig
@@ -78,3 +78,5 @@  CONFIG_DM_USB=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_DWC3=y
 CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
+CONFIG_DM_I2C=y
+CONFIG_DM_GPIO=y
diff --git a/configs/ls1043aqds_nor_ddr3_defconfig b/configs/ls1043aqds_nor_ddr3_defconfig
index 8d28fe1baf..01d0af30b1 100644
--- a/configs/ls1043aqds_nor_ddr3_defconfig
+++ b/configs/ls1043aqds_nor_ddr3_defconfig
@@ -63,3 +63,5 @@  CONFIG_DM_USB=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_DWC3=y
 CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
+CONFIG_DM_I2C=y
+CONFIG_DM_GPIO=y
diff --git a/configs/ls1043aqds_qspi_defconfig b/configs/ls1043aqds_qspi_defconfig
index 86b2eb56b8..65eff7c40b 100644
--- a/configs/ls1043aqds_qspi_defconfig
+++ b/configs/ls1043aqds_qspi_defconfig
@@ -58,3 +58,5 @@  CONFIG_DM_USB=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_DWC3=y
 CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
+CONFIG_DM_I2C=y
+CONFIG_DM_GPIO=y
diff --git a/configs/ls1043aqds_sdcard_ifc_defconfig b/configs/ls1043aqds_sdcard_ifc_defconfig
index bf3f0d0990..c5042a345d 100644
--- a/configs/ls1043aqds_sdcard_ifc_defconfig
+++ b/configs/ls1043aqds_sdcard_ifc_defconfig
@@ -79,3 +79,5 @@  CONFIG_DM_USB=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_DWC3=y
 CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
+CONFIG_DM_I2C=y
+CONFIG_DM_GPIO=y
diff --git a/configs/ls1043aqds_sdcard_qspi_defconfig b/configs/ls1043aqds_sdcard_qspi_defconfig
index 0449469b89..12706a48dc 100644
--- a/configs/ls1043aqds_sdcard_qspi_defconfig
+++ b/configs/ls1043aqds_sdcard_qspi_defconfig
@@ -72,3 +72,5 @@  CONFIG_DM_USB=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_DWC3=y
 CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
+CONFIG_DM_I2C=y
+CONFIG_DM_GPIO=y
diff --git a/configs/ls1043aqds_tfa_SECURE_BOOT_defconfig b/configs/ls1043aqds_tfa_SECURE_BOOT_defconfig
index 4ba5a8dd95..bbd01eb290 100644
--- a/configs/ls1043aqds_tfa_SECURE_BOOT_defconfig
+++ b/configs/ls1043aqds_tfa_SECURE_BOOT_defconfig
@@ -64,3 +64,5 @@  CONFIG_SPL_RSA=y
 CONFIG_RSA_SOFTWARE_EXP=y
 CONFIG_CMD_SETEXPR=y
 CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
+CONFIG_DM_I2C=y
+CONFIG_DM_GPIO=y
diff --git a/configs/ls1043aqds_tfa_defconfig b/configs/ls1043aqds_tfa_defconfig
index 24db72a39d..6e594ed07c 100644
--- a/configs/ls1043aqds_tfa_defconfig
+++ b/configs/ls1043aqds_tfa_defconfig
@@ -71,3 +71,5 @@  CONFIG_DM_USB=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_DWC3=y
 CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
+CONFIG_DM_I2C=y
+CONFIG_DM_GPIO=y
diff --git a/configs/ls1043ardb_SECURE_BOOT_defconfig b/configs/ls1043ardb_SECURE_BOOT_defconfig
index 5e030e2586..153a62866f 100644
--- a/configs/ls1043ardb_SECURE_BOOT_defconfig
+++ b/configs/ls1043ardb_SECURE_BOOT_defconfig
@@ -55,3 +55,5 @@  CONFIG_RSA=y
 CONFIG_SPL_RSA=y
 CONFIG_RSA_SOFTWARE_EXP=y
 CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
+CONFIG_DM_I2C=y
+CONFIG_DM_GPIO=y
diff --git a/configs/ls1043ardb_defconfig b/configs/ls1043ardb_defconfig
index 0676cbccdd..d1e534388b 100644
--- a/configs/ls1043ardb_defconfig
+++ b/configs/ls1043ardb_defconfig
@@ -55,3 +55,5 @@  CONFIG_DM_USB=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_DWC3=y
 CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
+CONFIG_DM_I2C=y
+CONFIG_DM_GPIO=y
diff --git a/configs/ls1043ardb_nand_SECURE_BOOT_defconfig b/configs/ls1043ardb_nand_SECURE_BOOT_defconfig
index 1f4c5705d5..252c7c8313 100644
--- a/configs/ls1043ardb_nand_SECURE_BOOT_defconfig
+++ b/configs/ls1043ardb_nand_SECURE_BOOT_defconfig
@@ -75,3 +75,5 @@  CONFIG_USB_XHCI_DWC3=y
 CONFIG_RSA=y
 CONFIG_SPL_RSA=y
 CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
+CONFIG_DM_I2C=y
+CONFIG_DM_GPIO=y
diff --git a/configs/ls1043ardb_nand_defconfig b/configs/ls1043ardb_nand_defconfig
index e7fe2de309..de18aaa063 100644
--- a/configs/ls1043ardb_nand_defconfig
+++ b/configs/ls1043ardb_nand_defconfig
@@ -74,3 +74,5 @@  CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_DWC3=y
 # CONFIG_SPL_USE_TINY_PRINTF is not set
 CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
+CONFIG_DM_I2C=y
+CONFIG_DM_GPIO=y
diff --git a/configs/ls1043ardb_sdcard_SECURE_BOOT_defconfig b/configs/ls1043ardb_sdcard_SECURE_BOOT_defconfig
index 6529c7334c..149b25ffe5 100644
--- a/configs/ls1043ardb_sdcard_SECURE_BOOT_defconfig
+++ b/configs/ls1043ardb_sdcard_SECURE_BOOT_defconfig
@@ -74,3 +74,5 @@  CONFIG_USB_XHCI_DWC3=y
 CONFIG_RSA=y
 CONFIG_SPL_RSA=y
 CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
+CONFIG_DM_I2C=y
+CONFIG_DM_GPIO=y
diff --git a/configs/ls1043ardb_sdcard_defconfig b/configs/ls1043ardb_sdcard_defconfig
index 228262477c..b386fc668c 100644
--- a/configs/ls1043ardb_sdcard_defconfig
+++ b/configs/ls1043ardb_sdcard_defconfig
@@ -73,3 +73,5 @@  CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_DWC3=y
 # CONFIG_SPL_USE_TINY_PRINTF is not set
 CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
+CONFIG_DM_I2C=y
+CONFIG_DM_GPIO=y
diff --git a/configs/ls1043ardb_tfa_SECURE_BOOT_defconfig b/configs/ls1043ardb_tfa_SECURE_BOOT_defconfig
index 83bfca078b..017ec5ea7a 100644
--- a/configs/ls1043ardb_tfa_SECURE_BOOT_defconfig
+++ b/configs/ls1043ardb_tfa_SECURE_BOOT_defconfig
@@ -57,3 +57,5 @@  CONFIG_SPL_RSA=y
 CONFIG_RSA_SOFTWARE_EXP=y
 CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
 CONFIG_CMD_SETEXPR=y
+CONFIG_DM_I2C=y
+CONFIG_DM_GPIO=y
diff --git a/configs/ls1043ardb_tfa_defconfig b/configs/ls1043ardb_tfa_defconfig
index 4154075986..eaddbca79f 100644
--- a/configs/ls1043ardb_tfa_defconfig
+++ b/configs/ls1043ardb_tfa_defconfig
@@ -59,3 +59,5 @@  CONFIG_DM_USB=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_DWC3=y
 CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
+CONFIG_DM_I2C=y
+CONFIG_DM_GPIO=y
diff --git a/include/configs/ls1043a_common.h b/include/configs/ls1043a_common.h
index bf24d4036d..985f40412c 100644
--- a/include/configs/ls1043a_common.h
+++ b/include/configs/ls1043a_common.h
@@ -1,6 +1,7 @@ 
 /* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2015 Freescale Semiconductor
+ * Copyright (C) 2019 NXP
  */
 
 #ifndef __LS1043A_COMMON_H
@@ -141,7 +142,17 @@ 
 #endif
 
 /* I2C */
+#ifndef CONFIG_DM_I2C
 #define CONFIG_SYS_I2C
+#define CONFIG_SYS_I2C_MXC
+#define CONFIG_SYS_I2C_MXC_I2C1		/* enable I2C bus 1 */
+#define CONFIG_SYS_I2C_MXC_I2C2		/* enable I2C bus 2 */
+#define CONFIG_SYS_I2C_MXC_I2C3		/* enable I2C bus 3 */
+#define CONFIG_SYS_I2C_MXC_I2C4		/* enable I2C bus 4 */
+#else
+#define CONFIG_I2C_SET_DEFAULT_BUS_NUM
+#define CONFIG_I2C_DEFAULT_BUS_NUMBER 0
+#endif
 
 /* PCIe */
 #ifndef SPL_NO_PCIE