From mboxrd@z Thu Jan 1 00:00:00 1970 From: Przemyslaw Marczak Date: Tue, 04 Nov 2014 16:56:53 +0100 Subject: [U-Boot] [PATCH 2/4] imx: mx6slevk: Add PMIC Pfuze support In-Reply-To: <1410340097-19804-2-git-send-email-B37916@freescale.com> References: <1410340097-19804-1-git-send-email-B37916@freescale.com> <1410340097-19804-2-git-send-email-B37916@freescale.com> Message-ID: <5458F745.5000909@samsung.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hello Ye Li, On 09/10/2014 11:08 AM, Ye.Li wrote: > Initialize the Pfuze on I2C1 at board late init. The mx6slevk board > has Pfuze100 or Pfuze200, print the chip type by parsing the ID. > > Signed-off-by: Ye.Li > --- > board/freescale/mx6slevk/mx6slevk.c | 57 +++++++++++++++++++++++++++++++++++ > include/configs/mx6slevk.h | 7 ++++ > 2 files changed, 64 insertions(+), 0 deletions(-) > > diff --git a/board/freescale/mx6slevk/mx6slevk.c b/board/freescale/mx6slevk/mx6slevk.c > index fedd5c3..8b6a79c 100644 > --- a/board/freescale/mx6slevk/mx6slevk.c > +++ b/board/freescale/mx6slevk/mx6slevk.c > @@ -21,6 +21,8 @@ > #include > #include > #include > +#include > +#include > > DECLARE_GLOBAL_DATA_PTR; > > @@ -48,6 +50,8 @@ DECLARE_GLOBAL_DATA_PTR; > > #define PC MUX_PAD_CTRL(I2C_PAD_CTRL) > > +#define I2C_PMIC 0 > + > /* I2C1 for PMIC */ > struct i2c_pads_info i2c_pad_info0 = { > .sda = { > @@ -191,6 +195,59 @@ 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, ®); > + printf("PMIC: PFUZE%s ID=0x%02x\n", > + ((reg & 0xf) == 0) ? "100" : "200", reg); > + > + /* Set SW1AB stanby volage to 0.975V */ > + pmic_reg_read(p, PFUZE100_SW1ABSTBY, ®); > + 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 &= ~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 &= ~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 &= ~0xc0; > + reg |= 0x40; > + pmic_reg_write(p, PFUZE100_SW1CCONF, reg); > + > + return 0; > +} > + > +int board_late_init(void) > +{ > + pfuze_init(); > + > + return 0; > +} Why not use power_init_board()? It's dedicated and called at common/board_r.c. > + > u32 get_board_rev(void) > { > return get_cpu_rev(); > diff --git a/include/configs/mx6slevk.h b/include/configs/mx6slevk.h > index bf5066f..09d0896 100644 > --- a/include/configs/mx6slevk.h > +++ b/include/configs/mx6slevk.h > @@ -30,6 +30,7 @@ > #define CONFIG_SYS_MALLOC_LEN (3 * SZ_1M) > > #define CONFIG_BOARD_EARLY_INIT_F > +#define CONFIG_BOARD_LATE_INIT > #define CONFIG_MXC_GPIO > > #define CONFIG_MXC_UART > @@ -66,6 +67,12 @@ > #define CONFIG_SYS_I2C_MXC > #define CONFIG_SYS_I2C_SPEED 100000 > > +/* PMIC */ > +#define CONFIG_POWER > +#define CONFIG_POWER_I2C > +#define CONFIG_POWER_PFUZE100 > +#define CONFIG_POWER_PFUZE100_I2C_ADDR 0x08 I assume that the I2C addr is const, if yes then it should be moved to the PFUZE100 header. > + > /* allow to overwrite serial and ethaddr */ > #define CONFIG_ENV_OVERWRITE > #define CONFIG_CONS_INDEX 1 > Thank you, -- Przemyslaw Marczak Samsung R&D Institute Poland Samsung Electronics p.marczak at samsung.com