[U-Boot] [PATCH] warp7: Add PMIC support

[Stefano Babic]

On 19/08/2016 15:21, Vanessa Maegima wrote:
> Add PMIC support. Tested by command "pmic PFUZE3000 dump".
> 
> Signed-off-by: Vanessa Maegima <vanessa.maegima at nxp.com>
> ---
>  board/warp7/warp7.c     | 57 +++++++++++++++++++++++++++++++++++++++++++++++++
>  include/configs/warp7.h | 12 +++++++++++
>  2 files changed, 69 insertions(+)
> 
> diff --git a/board/warp7/warp7.c b/board/warp7/warp7.c
> index 27e31f3..cffee4a 100644
> --- a/board/warp7/warp7.c
> +++ b/board/warp7/warp7.c
> @@ -11,12 +11,17 @@
>  #include <asm/arch/sys_proto.h>
>  #include <asm/gpio.h>
>  #include <asm/imx-common/iomux-v3.h>
> +#include <asm/imx-common/mxc_i2c.h>
>  #include <asm/io.h>
>  #include <common.h>
>  #include <fsl_esdhc.h>
> +#include <i2c.h>
>  #include <mmc.h>
>  #include <asm/arch/crm_regs.h>
>  #include <usb.h>
> +#include <power/pmic.h>
> +#include <power/pfuze3000_pmic.h>
> +#include "../freescale/common/pfuze.h"
>  
>  DECLARE_GLOBAL_DATA_PTR;
>  
> @@ -25,6 +30,26 @@ DECLARE_GLOBAL_DATA_PTR;
>  #define USDHC_PAD_CTRL (PAD_CTL_DSE_3P3V_32OHM | PAD_CTL_SRE_SLOW |	\
>  			PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PUS_PU47KOHM)
>  
> +#define I2C_PAD_CTRL	(PAD_CTL_DSE_3P3V_32OHM | PAD_CTL_SRE_SLOW | \
> +	PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PUS_PU100KOHM)
> +
> +#ifdef CONFIG_SYS_I2C_MXC
> +#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
> +/* I2C1 for PMIC */
> +static struct i2c_pads_info i2c_pad_info1 = {
> +	.scl = {
> +		.i2c_mode = MX7D_PAD_I2C1_SCL__I2C1_SCL | PC,
> +		.gpio_mode = MX7D_PAD_I2C1_SCL__GPIO4_IO8 | PC,
> +		.gp = IMX_GPIO_NR(4, 8),
> +	},
> +	.sda = {
> +		.i2c_mode = MX7D_PAD_I2C1_SDA__I2C1_SDA | PC,
> +		.gpio_mode = MX7D_PAD_I2C1_SDA__GPIO4_IO9 | PC,
> +		.gp = IMX_GPIO_NR(4, 9),
> +	},
> +};
> +#endif
> +
>  int dram_init(void)
>  {
>  	gd->ram_size = PHYS_SDRAM_SIZE;
> @@ -85,11 +110,43 @@ int board_early_init_f(void)
>  	return 0;
>  }
>  
> +#ifdef CONFIG_POWER
> +#define I2C_PMIC       0
> +static struct pmic *pfuze;
> +int power_init_board(void)
> +{
> +	int ret;
> +	unsigned int reg, rev_id;
> +
> +	ret = power_pfuze3000_init(I2C_PMIC);
> +	if (ret)
> +		return ret;
> +
> +	pfuze = pmic_get("PFUZE3000");
> +	ret = pmic_probe(pfuze);
> +	if (ret)
> +		return ret;
> +
> +	pmic_reg_read(pfuze, PFUZE3000_DEVICEID, &reg);
> +	pmic_reg_read(pfuze, PFUZE3000_REVID, &rev_id);
> +	printf("PMIC: PFUZE3000 DEV_ID=0x%x REV_ID=0x%x\n", reg, rev_id);
> +
> +	/* disable Low Power Mode during standby mode */
> +	pmic_reg_write(pfuze, PFUZE3000_LDOGCTL, 0x1);
> +
> +	return 0;
> +}
> +#endif
> +
>  int board_init(void)
>  {
>  	/* address of boot parameters */
>  	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
>  
> +	#ifdef CONFIG_SYS_I2C_MXC
> +		setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
> +	#endif
> +
>  	return 0;
>  }
>  
> diff --git a/include/configs/warp7.h b/include/configs/warp7.h
> index e59b16c..57a8123 100644
> --- a/include/configs/warp7.h
> +++ b/include/configs/warp7.h
> @@ -103,6 +103,18 @@
>  #define CONFIG_SYS_INIT_SP_ADDR \
>  	(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
>  
> +/* I2C configs */
> +#define CONFIG_SYS_I2C
> +#define CONFIG_SYS_I2C_MXC
> +#define CONFIG_SYS_I2C_MXC_I2C1
> +#define CONFIG_SYS_I2C_SPEED		100000
> +
> +/* PMIC */
> +#define CONFIG_POWER
> +#define CONFIG_POWER_I2C
> +#define CONFIG_POWER_PFUZE3000
> +#define CONFIG_POWER_PFUZE3000_I2C_ADDR	0x08
> +
>  /* FLASH and environment organization */
>  #define CONFIG_SYS_NO_FLASH
>  #define CONFIG_ENV_SIZE			SZ_8K
> 

Reviewed-by: Stefano Babic <sbabic at denx.de>

Best regards,
Stefano Babic

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