From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Babic Date: Sun, 26 Jul 2015 12:14:05 +0200 Subject: [U-Boot] [PATCH v2 2/2] warp: Add MAX77696 support In-Reply-To: <1437526042-15118-2-git-send-email-festevam@gmail.com> References: <1437526042-15118-1-git-send-email-festevam@gmail.com> <1437526042-15118-2-git-send-email-festevam@gmail.com> Message-ID: <55B4B2ED.9000209@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On 22/07/2015 02:47, Fabio Estevam wrote: > From: Fabio Estevam > > Warp has a MAX77696 PMIC connected via I2C1 bus. > > Add support for it. > > Signed-off-by: Fabio Estevam > --- > Changes since v1: > - None > > board/warp/warp.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ > include/configs/warp.h | 11 +++++++++++ > 2 files changed, 61 insertions(+) > > diff --git a/board/warp/warp.c b/board/warp/warp.c > index 21ac5e7..49dfdb6 100644 > --- a/board/warp/warp.c > +++ b/board/warp/warp.c > @@ -15,13 +15,17 @@ > #include > #include > #include > +#include > #include > #include > #include > #include > #include > +#include > #include > #include > +#include > +#include > > DECLARE_GLOBAL_DATA_PTR; > > @@ -35,6 +39,11 @@ DECLARE_GLOBAL_DATA_PTR; > PAD_CTL_SRE_FAST | PAD_CTL_HYS | \ > PAD_CTL_LVE) > > +#define I2C_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ > + PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ > + PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ > + PAD_CTL_ODE | PAD_CTL_SRE_FAST) > + > int dram_init(void) > { > gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE); > @@ -88,6 +97,45 @@ int board_usb_phy_mode(int port) > return USB_INIT_DEVICE; > } > > +/* I2C1 for PMIC */ > +#define I2C_PMIC 0 > +#define PC MUX_PAD_CTRL(I2C_PAD_CTRL) > +struct i2c_pads_info i2c_pad_info1 = { > + .sda = { > + .i2c_mode = MX6_PAD_I2C1_SDA__I2C1_SDA | PC, > + .gpio_mode = MX6_PAD_I2C1_SDA__GPIO_3_13 | PC, > + .gp = IMX_GPIO_NR(3, 13), > + }, > + .scl = { > + .i2c_mode = MX6_PAD_I2C1_SCL__I2C1_SCL | PC, > + .gpio_mode = MX6_PAD_I2C1_SCL__GPIO_3_12 | PC, > + .gp = IMX_GPIO_NR(3, 12), > + }, > +}; > + > +int power_init_board(void) > +{ > + struct pmic *p; > + int ret; > + unsigned int reg; > + > + ret = power_max77696_init(I2C_PMIC); > + if (ret) > + return ret; > + > + p = pmic_get("MAX77696"); > + if (!p) > + return -EINVAL; > + > + ret = pmic_reg_read(p, CID, ®); > + if (ret) > + return ret; > + > + printf("PMIC: MAX77696 detected, rev=0x%x\n", reg); > + > + return pmic_probe(p); > +} > + > int board_early_init_f(void) > { > setup_iomux_uart(); > @@ -99,6 +147,8 @@ int board_init(void) > /* address of boot parameters */ > gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; > > + setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1); > + > return 0; > } > > diff --git a/include/configs/warp.h b/include/configs/warp.h > index 48e2058..f38f781 100644 > --- a/include/configs/warp.h > +++ b/include/configs/warp.h > @@ -98,6 +98,17 @@ > #define CONFIG_CMD_FUSE > #define CONFIG_MXC_OCOTP > > +/* I2C Configs */ > +#define CONFIG_CMD_I2C > +#define CONFIG_SYS_I2C > +#define CONFIG_SYS_I2C_MXC > +#define CONFIG_SYS_I2C_SPEED 100000 > + > +/* PMIC */ > +#define CONFIG_POWER > +#define CONFIG_POWER_I2C > +#define CONFIG_POWER_MAX77696 > + > #define CONFIG_EXTRA_ENV_SETTINGS \ > "script=boot.scr\0" \ > "image=zImage\0" \ > Applied to u-boot-imx, thanks ! Best regards, Stefano Babic -- ===================================================================== DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de =====================================================================