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

[Stefano Babic]

Hi Ye,

On 12/09/2014 12:27, Li Ye-B37916 wrote:
> 
> On 9/12/2014 4:17 PM, Stefano Babic wrote:
>> 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
>>
> Yes. The pfuze codes are similar on these boards. I will try to factorize the function. How about moving the common codes to "board/freescale/imx" ?
> 

Agree. The imx directory can contain all common code shared among
Freescale's board.

Best regards,
Stefano Babic


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