diff options
Diffstat (limited to 'board/freescale/imx8ulp_evk/imx8ulp_evk.c')
| -rw-r--r-- | board/freescale/imx8ulp_evk/imx8ulp_evk.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/board/freescale/imx8ulp_evk/imx8ulp_evk.c b/board/freescale/imx8ulp_evk/imx8ulp_evk.c index 3ff4d43c99..1502e4dbb6 100644 --- a/board/freescale/imx8ulp_evk/imx8ulp_evk.c +++ b/board/freescale/imx8ulp_evk/imx8ulp_evk.c @@ -12,6 +12,7 @@ #include <asm/arch/sys_proto.h> #include <miiphy.h> #include <netdev.h> +#include <asm/gpio.h> DECLARE_GLOBAL_DATA_PTR; @@ -48,11 +49,66 @@ int board_phy_config(struct phy_device *phydev) } #endif +#define I2C_PAD_CTRL (PAD_CTL_ODE) +static const iomux_cfg_t lpi2c0_pads[] = { + IMX8ULP_PAD_PTA8__LPI2C0_SCL | MUX_PAD_CTRL(I2C_PAD_CTRL), + IMX8ULP_PAD_PTA9__LPI2C0_SDA | MUX_PAD_CTRL(I2C_PAD_CTRL), +}; + +#define TPM_PAD_CTRL (PAD_CTL_DSE) +static const iomux_cfg_t tpm0_pads[] = { + IMX8ULP_PAD_PTA3__TPM0_CH2 | MUX_PAD_CTRL(TPM_PAD_CTRL), +}; + +void mipi_dsi_mux_panel(void) +{ + int ret; + struct gpio_desc desc; + + /* It is temp solution to directly access i2c, need change to rpmsg later */ + + /* enable lpi2c0 clock and iomux */ + imx8ulp_iomux_setup_multiple_pads(lpi2c0_pads, ARRAY_SIZE(lpi2c0_pads)); + writel(0xD2000000, 0x28091060); + + ret = dm_gpio_lookup_name("gpio@20_9", &desc); + if (ret) { + printf("%s lookup gpio@20_9 failed ret = %d\n", __func__, ret); + return; + } + + ret = dm_gpio_request(&desc, "dsi_mux"); + if (ret) { + printf("%s request dsi_mux failed ret = %d\n", __func__, ret); + return; + } + + dm_gpio_set_dir_flags(&desc, GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE); +} + +void mipi_dsi_panel_backlight(void) +{ + /* It is temp solution to directly access pwm, need change to rpmsg later */ + imx8ulp_iomux_setup_multiple_pads(tpm0_pads, ARRAY_SIZE(tpm0_pads)); + writel(0xD4000001, 0x28091054); + + /* Use center-aligned PWM mode, CPWMS=1, MSnB:MSnA = 10, ELSnB:ELSnA = 00 */ + writel(1000, 0x28095018); + writel(1000, 0x28095034); /* MOD = CV, full duty */ + writel(0x28, 0x28095010); + writel(0x20, 0x28095030); +} + int board_init(void) { if (IS_ENABLED(CONFIG_FEC_MXC)) setup_fec(); + if (IS_ENABLED(CONFIG_DM_VIDEO)) { + mipi_dsi_mux_panel(); + mipi_dsi_panel_backlight(); + } + return 0; } |