diff options
| -rw-r--r-- | arch/arm/mach-imx/imx8m/soc.c | 33 | ||||
| -rw-r--r-- | board/freescale/imx8mn_evk/Kconfig | 4 | ||||
| -rw-r--r-- | board/freescale/imx8mn_evk/spl.c | 8 | ||||
| -rw-r--r-- | configs/imx8mn_ddr4_evk_nom_defconfig | 74 |
4 files changed, 119 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c index 65ecb90c65..c4144f8140 100644 --- a/arch/arm/mach-imx/imx8m/soc.c +++ b/arch/arm/mach-imx/imx8m/soc.c @@ -710,6 +710,39 @@ usb_modify_speed: disable_cpu_nodes(blob, 2); else if (is_imx8mms() || is_imx8mmsl()) disable_cpu_nodes(blob, 3); + +#elif defined(CONFIG_IMX8MN) + +#ifdef CONFIG_IMX8MN_FORCE_NOM_SOC + /* Disable the DVFS by removing 1.4Ghz and 1.5Ghz operating-points*/ + int rc; + int nodeoff; + static const char * const nodes_path = "/cpus/cpu@0"; + u32 val[] = {1200000, 850000}; + + nodeoff = fdt_path_offset(blob, nodes_path); + if (nodeoff < 0) { + printf("Unable to find node %s, err=%s\n", + nodes_path, fdt_strerror(nodeoff)); + return nodeoff; + } + + printf("Found %s node\n", nodes_path); + + val[0] = cpu_to_fdt32(val[0]); + val[1] = cpu_to_fdt32(val[1]); + rc = fdt_setprop(blob, nodeoff, "operating-points", &val, 2 * sizeof(u32)); + if (rc) { + printf("Unable to update operating-points for node %s, err=%s\n", + nodes_path, fdt_strerror(rc)); + return rc; + } + + printf("Update %s:%s\n", nodes_path, + "operating-points"); + +#endif /* CONFIG_IMX8MN_FORCE_NOM_SOC */ + #endif return ft_add_optee_node(blob, bd); diff --git a/board/freescale/imx8mn_evk/Kconfig b/board/freescale/imx8mn_evk/Kconfig index 38ac846802..5a16a8c6bb 100644 --- a/board/freescale/imx8mn_evk/Kconfig +++ b/board/freescale/imx8mn_evk/Kconfig @@ -9,6 +9,10 @@ config SYS_VENDOR config SYS_CONFIG_NAME default "imx8mn_evk" +config IMX8MN_FORCE_NOM_SOC + bool "Force to use nominal mode for SOC and ARM" + default n + source "board/freescale/common/Kconfig" endif diff --git a/board/freescale/imx8mn_evk/spl.c b/board/freescale/imx8mn_evk/spl.c index 7d4b371b6b..835053f5f2 100644 --- a/board/freescale/imx8mn_evk/spl.c +++ b/board/freescale/imx8mn_evk/spl.c @@ -161,8 +161,16 @@ int power_init_board(void) /* unlock the PMIC regs */ pmic_reg_write(p, BD71837_REGLOCK, 0x1); +#ifdef CONFIG_IMX8MN_FORCE_NOM_SOC + /* increase VDD_ARM to typical value 0.85v for 1.2Ghz */ + pmic_reg_write(p, BD71837_BUCK2_VOLT_RUN, 0xf); + + /* increase VDD_SOC/VDD_DRAM to typical value 0.85v for nominal mode */ + pmic_reg_write(p, BD71837_BUCK1_VOLT_RUN, 0xf); +#else /* increase VDD_SOC/VDD_DRAM to typical value 0.95v for 3Ghz DDRs */ pmic_reg_write(p, BD71837_BUCK1_VOLT_RUN, 0x19); +#endif #ifdef CONFIG_IMX8M_DDR4 /* increase NVCC_DRAM_1V2 to 1.2v for DDR4 */ diff --git a/configs/imx8mn_ddr4_evk_nom_defconfig b/configs/imx8mn_ddr4_evk_nom_defconfig new file mode 100644 index 0000000000..7a77bb00f1 --- /dev/null +++ b/configs/imx8mn_ddr4_evk_nom_defconfig @@ -0,0 +1,74 @@ +CONFIG_ARM=y +CONFIG_ARCH_IMX8M=y +CONFIG_SYS_TEXT_BASE=0x40200000 +CONFIG_SYS_MALLOC_F_LEN=0x2000 +CONFIG_USB_TCPC=y +CONFIG_TARGET_IMX8MN_EVK=y +CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/mach-imx/spl_sd.cfg,SPL_TEXT_BASE=0x912000" +CONFIG_FIT=y +CONFIG_SPL_LOAD_FIT=y +CONFIG_ARCH_MISC_INIT=y +CONFIG_SPL=y +CONFIG_SPL_BOARD_INIT=y +CONFIG_HUSH_PARSER=y +CONFIG_OF_LIBFDT=y +CONFIG_FS_FAT=y +CONFIG_CMD_EXT2=y +CONFIG_CMD_EXT4=y +CONFIG_CMD_EXT4_WRITE=y +CONFIG_CMD_FAT=y +CONFIG_DEFAULT_DEVICE_TREE="fsl-imx8mn-ddr4-evk" +CONFIG_DEFAULT_FDT_FILE="fsl-imx8mn-ddr4-evk.dtb" +CONFIG_ENV_IS_IN_MMC=y +CONFIG_CMD_SF=y +CONFIG_CMD_I2C=y +CONFIG_CMD_GPIO=y +CONFIG_CMD_CACHE=y +CONFIG_CMD_REGULATOR=y +CONFIG_CMD_MEMTEST=y +CONFIG_OF_CONTROL=y +CONFIG_FASTBOOT=y +CONFIG_USB_FUNCTION_FASTBOOT=y +CONFIG_CMD_FASTBOOT=y +CONFIG_ANDROID_BOOT_IMAGE=y +CONFIG_FSL_FASTBOOT=y +CONFIG_FASTBOOT_BUF_ADDR=0x42800000 +CONFIG_FASTBOOT_BUF_SIZE=0x40000000 +CONFIG_FASTBOOT_FLASH=y +CONFIG_FASTBOOT_FLASH_MMC_DEV=0 + +CONFIG_DM_GPIO=y +CONFIG_DM_I2C=y +CONFIG_SYS_I2C_MXC=y +CONFIG_DM_MMC=y +# CONFIG_DM_PMIC=y +CONFIG_EFI_PARTITION=y +CONFIG_DM_SPI_FLASH=y +CONFIG_SPI_FLASH=y +CONFIG_SPI_FLASH_STMICRO=y +CONFIG_DM_ETH=y +CONFIG_PINCTRL=y +CONFIG_PINCTRL_IMX8M=y +CONFIG_DM_REGULATOR=y +CONFIG_DM_REGULATOR_FIXED=y +CONFIG_DM_REGULATOR_GPIO=y +CONFIG_DM_SPI=y +CONFIG_FSL_FSPI=y +CONFIG_NXP_TMU=y +CONFIG_DM_THERMAL=y +CONFIG_USB=y +CONFIG_USB_GADGET=y +CONFIG_DM_USB=y +CONFIG_USB_EHCI_HCD=y + +CONFIG_USB_GADGET_MANUFACTURER="FSL" +CONFIG_USB_GADGET_VENDOR_NUM=0x0525 +CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5 + +CONFIG_VIDEO=y +CONFIG_IMX_SEC_MIPI_DSI=y + +CONFIG_SPL_IMX_ROMAPI_SUPPORT=y +CONFIG_SPL_IMX_ROMAPI_LOADADDR=0x48000000 + +CONFIG_IMX8MN_FORCE_NOM_SOC=y |