[U-Boot] [PATCH] imx: imx6q/dlsabreauto: Add PMIC Pfuze100 support

[Stefano Babic]

Hi Ye,

On 10/09/2014 07:52, Ye.Li wrote:
> Initialize the Pfuze100 at board late init.
> 
> Signed-off-by: Ye.Li <B37916 at freescale.com>
> ---
>  board/freescale/mx6qsabreauto/mx6qsabreauto.c |   52 ++++++++++++++++++++++++-
>  include/configs/mx6qsabreauto.h               |    6 +++
>  2 files changed, 57 insertions(+), 1 deletions(-)
> 
> diff --git a/board/freescale/mx6qsabreauto/mx6qsabreauto.c b/board/freescale/mx6qsabreauto/mx6qsabreauto.c
> index bfb9b6a..76b024b 100644
> --- a/board/freescale/mx6qsabreauto/mx6qsabreauto.c
> +++ b/board/freescale/mx6qsabreauto/mx6qsabreauto.c
> @@ -1,5 +1,5 @@
>  /*
> - * Copyright (C) 2012 Freescale Semiconductor, Inc.
> + * Copyright (C) 2012-2014 Freescale Semiconductor, Inc.
>   *
>   * Author: Fabio Estevam <fabio.estevam at freescale.com>
>   *
> @@ -23,6 +23,8 @@
>  #include <netdev.h>
>  #include <asm/arch/sys_proto.h>
>  #include <i2c.h>
> +#include <power/pmic.h>
> +#include <power/pfuze100_pmic.h>
>  
>  DECLARE_GLOBAL_DATA_PTR;
>  
> @@ -43,6 +45,8 @@ DECLARE_GLOBAL_DATA_PTR;
>  
>  #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
>  
> +#define I2C_PMIC	1
> +
>  int dram_init(void)
>  {
>  	gd->ram_size = (phys_size_t)CONFIG_DDR_MB * 1024 * 1024;
> @@ -259,6 +263,51 @@ int board_init(void)
>  	return 0;
>  }
>  
> +static int pfuze_init(void)
> +{
> +	struct pmic *p;
> +	int ret;
> +	unsigned int reg;
> +
> +	ret = power_pfuze100_init(I2C_PMIC);
> +	if (ret)
> +		return ret;
> +
> +	p = pmic_get("PFUZE100");
> +	ret = pmic_probe(p);
> +	if (ret)
> +		return ret;
> +
> +	pmic_reg_read(p, PFUZE100_DEVICEID, &reg);
> +	printf("PMIC:  PFUZE100 ID=0x%02x\n", reg);
> +
> +	/* Set SW1AB stanby volage to 0.975V */
> +	pmic_reg_read(p, PFUZE100_SW1ABSTBY, &reg);
> +	reg &= ~0x3f;
> +	reg |= 0x1b;
> +	pmic_reg_write(p, PFUZE100_SW1ABSTBY, reg);
> +
> +	/* Set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */
> +	pmic_reg_read(p, PUZE_100_SW1ABCONF, &reg);
> +	reg &= ~0xc0;
> +	reg |= 0x40;
> +	pmic_reg_write(p, PUZE_100_SW1ABCONF, reg);
> +
> +	/* Set SW1C standby voltage to 0.975V */
> +	pmic_reg_read(p, PFUZE100_SW1CSTBY, &reg);
> +	reg &= ~0x3f;
> +	reg |= 0x1b;
> +	pmic_reg_write(p, PFUZE100_SW1CSTBY, reg);
> +
> +	/* Set SW1C/VDDSOC step ramp up time from 16us to 4us/25mV */
> +	pmic_reg_read(p, PFUZE100_SW1CCONF, &reg);
> +	reg &= ~0xc0;
> +	reg |= 0x40;
> +	pmic_reg_write(p, PFUZE100_SW1CCONF, reg);
> +
> +	return 0;
> +}

The initialization, with the exception of VGEN3/VGEN5, is identical to
the sabresd. Any possibility to improve code and factorize the function
for sabre* boards ?

Best regards,
Stefano Babic

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