mirror of
https://source.denx.de/u-boot/u-boot.git
synced 2025-12-23 02:12:08 +01:00
Merge branch 'master' of https://source.denx.de/u-boot/custodians/u-boot-samsung
- Enhanced e850-96 support
This commit is contained in:
Tom Rini
commit
088d24eb96
@ -602,6 +602,7 @@ ARM SAMSUNG EXYNOS850 SOC
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M: Sam Protsenko <semen.protsenko@linaro.org>
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S: Maintained
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F: drivers/clk/exynos/clk-exynos850.c
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F: drivers/phy/phy-exynos-usbdrd.c
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F: drivers/pinctrl/exynos/pinctrl-exynos850.c
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ARM SAMSUNG SOC DRIVERS
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@ -4,9 +4,57 @@
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* Author: Sam Protsenko <semen.protsenko@linaro.org>
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*/
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#include <efi_loader.h>
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#include <env.h>
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#include <init.h>
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#include <mapmem.h>
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#include <asm/io.h>
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#include "fw.h"
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/* OTP Controller base address and register offsets */
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#define EXYNOS850_OTP_BASE 0x10000000
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#define OTP_CHIPID0 0x4
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#define OTP_CHIPID1 0x8
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struct efi_fw_image fw_images[] = {
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{
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.image_type_id = E850_96_FWBL1_IMAGE_GUID,
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.fw_name = u"E850-96-FWBL1",
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.image_index = 1,
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},
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{
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.image_type_id = E850_96_EPBL_IMAGE_GUID,
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.fw_name = u"E850-96-EPBL",
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.image_index = 2,
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},
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{
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.image_type_id = E850_96_BL2_IMAGE_GUID,
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.fw_name = u"E850-96-BL2",
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.image_index = 3,
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},
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{
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.image_type_id = E850_96_BOOTLOADER_IMAGE_GUID,
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.fw_name = u"E850-96-BOOTLOADER",
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.image_index = 4,
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},
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{
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.image_type_id = E850_96_EL3_MON_IMAGE_GUID,
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.fw_name = u"E850-96-EL3-MON",
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.image_index = 5,
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},
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};
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struct efi_capsule_update_info update_info = {
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.dfu_string = "mmc 0="
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"fwbl1.img raw 0x0 0x18 mmcpart 1;"
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"epbl.img raw 0x18 0x98 mmcpart 1;"
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"bl2.img raw 0xb0 0x200 mmcpart 1;"
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"bootloader.img raw 0x438 0x1000 mmcpart 1;"
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"el3_mon.img raw 0x1438 0x200 mmcpart 1",
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.num_images = ARRAY_SIZE(fw_images),
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.images = fw_images,
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};
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int dram_init(void)
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{
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return fdtdec_setup_mem_size_base();
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@ -17,10 +65,39 @@ int dram_init_banksize(void)
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return fdtdec_setup_memory_banksize();
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}
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/* Read the unique SoC ID from OTP registers */
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static u64 get_chip_id(void)
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{
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void __iomem *otp_base;
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u64 val;
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otp_base = map_sysmem(EXYNOS850_OTP_BASE, 12);
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val = readl(otp_base + OTP_CHIPID0);
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val |= (u64)readl(otp_base + OTP_CHIPID1) << 32UL;
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unmap_sysmem(otp_base);
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return val;
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}
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static void setup_serial(void)
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{
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char serial_str[17] = { 0 };
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u64 serial_num;
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if (env_get("serial#"))
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return;
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serial_num = get_chip_id();
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snprintf(serial_str, sizeof(serial_str), "%016llx", serial_num);
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env_set("serial#", serial_str);
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}
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int board_late_init(void)
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{
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int err;
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setup_serial();
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/*
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* Do this in board_late_init() to make sure MMC is not probed before
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* efi_init_early().
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@ -7,5 +7,49 @@ pxefile_addr_r=0x8c200000
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ramdisk_addr_r=0x8c300000
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fdtfile=CONFIG_DEFAULT_FDT_FILE
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dfu_alt_info=
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rawemmc raw 0 0x747c000 mmcpart 1;
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esp part 0 1;
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rootfs part 0 2;
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fwbl1 raw 0x0 0x18 mmcpart 1;
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epbl raw 0x18 0x98 mmcpart 1;
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bl2 raw 0xb0 0x200 mmcpart 1;
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dram_train raw 0x2b0 0x20 mmcpart 1;
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ect_test raw 0x2d0 0x64 mmcpart 1;
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acpm_test raw 0x334 0x104 mmcpart 1;
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bootloader raw 0x438 0x1000 mmcpart 1;
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el3_mon raw 0x1438 0x200 mmcpart 1
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partitions=name=esp,start=512K,size=128M,bootable,type=system;
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partitions+=name=rootfs,size=-,bootable,type=linux
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partitions_android=name=esp,start=512K,size=128M,bootable,type=system;
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partitions_android+=name=efs,size=20M,uuid=${uuid_gpt_efs};
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partitions_android+=name=env,size=16K,uuid=${uuid_gpt_env};
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partitions_android+=name=kernel,size=30M,uuid=${uuid_gpt_kernel};
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partitions_android+=name=ramdisk,size=26M,uuid=${uuid_gpt_ramdisk};
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partitions_android+=name=dtbo_a,size=1M,uuid=${uuid_gpt_dtbo};
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partitions_android+=name=dtbo_b,size=1M,uuid=${uuid_gpt_dtbo};
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partitions_android+=name=ldfw,size=4016K,uuid=${uuid_gpt_ldfw};
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partitions_android+=name=keystorage,size=8K,uuid=${uuid_gpt_keystorage};
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partitions_android+=name=tzsw,size=1M,uuid=${uuid_gpt_tzsw};
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partitions_android+=name=harx,size=2M,uuid=${uuid_gpt_harx};
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partitions_android+=name=harx_rkp,size=2M,uuid=${uuid_gpt_harx_rkp};
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partitions_android+=name=logo,size=40M,uuid=${uuid_gpt_logo};
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partitions_android+=name=super,size=3600M,uuid=${uuid_gpt_super};
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partitions_android+=name=cache,size=300M,uuid=${uuid_gpt_cache};
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partitions_android+=name=modem,size=100M,uuid=${uuid_gpt_modem};
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partitions_android+=name=boot_a,size=100M,uuid=${uuid_gpt_boot};
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partitions_android+=name=boot_b,size=100M,uuid=${uuid_gpt_boot};
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partitions_android+=name=persist,size=30M,uuid=${uuid_gpt_persist};
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partitions_android+=name=recovery_a,size=40M,uuid=${uuid_gpt_recovery};
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partitions_android+=name=recovery_b,size=40M,uuid=${uuid_gpt_recovery};
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partitions_android+=name=misc,size=40M,uuid=${uuid_gpt_misc};
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partitions_android+=name=mnv,size=20M,uuid=${uuid_gpt_mnv};
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partitions_android+=name=frp,size=512K,uuid=${uuid_gpt_frp};
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partitions_android+=name=vbmeta_a,size=64K,uuid=${uuid_gpt_vbmeta};
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partitions_android+=name=vbmeta_b,size=64K,uuid=${uuid_gpt_vbmeta};
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partitions_android+=name=metadata,size=16M,uuid=${uuid_gpt_metadata};
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partitions_android+=name=dtb_a,size=1M,uuid=${uuid_gpt_dtb};
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partitions_android+=name=dtb_b,size=1M,uuid=${uuid_gpt_dtb};
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partitions_android+=name=userdata,size=-,uuid=${uuid_gpt_userdata}
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@ -3,7 +3,7 @@ CONFIG_ARCH_CPU_INIT=y
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CONFIG_ARM_SMCCC=y
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CONFIG_ARCH_EXYNOS=y
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CONFIG_TEXT_BASE=0xf8800000
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CONFIG_SYS_MALLOC_LEN=0x81f000
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CONFIG_SYS_MALLOC_LEN=0x2000000
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CONFIG_SYS_MALLOC_F_LEN=0x4000
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CONFIG_ARCH_EXYNOS9=y
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CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
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@ -15,7 +15,9 @@ CONFIG_SYS_LOAD_ADDR=0x80000000
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CONFIG_ENV_OFFSET_REDUND=0x10000
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# CONFIG_PSCI_RESET is not set
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CONFIG_EFI_SET_TIME=y
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CONFIG_ANDROID_BOOT_IMAGE=y
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CONFIG_EFI_RUNTIME_UPDATE_CAPSULE=y
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CONFIG_EFI_CAPSULE_ON_DISK=y
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CONFIG_EFI_CAPSULE_FIRMWARE_RAW=y
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CONFIG_BOOTSTD_FULL=y
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CONFIG_DEFAULT_FDT_FILE="exynos850-e850-96.dtb"
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# CONFIG_DISPLAY_CPUINFO is not set
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@ -25,6 +27,7 @@ CONFIG_CMD_BOOTEFI_SELFTEST=y
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CONFIG_CMD_ABOOTIMG=y
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CONFIG_CMD_NVEDIT_EFI=y
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CONFIG_CMD_CLK=y
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CONFIG_CMD_DFU=y
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CONFIG_CMD_GPT=y
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CONFIG_CMD_MMC=y
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CONFIG_CMD_EFIDEBUG=y
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@ -40,8 +43,18 @@ CONFIG_ENV_RELOC_GD_ENV_ADDR=y
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CONFIG_ENV_MMC_EMMC_HW_PARTITION=2
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CONFIG_NO_NET=y
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CONFIG_CLK_EXYNOS850=y
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CONFIG_DFU_MMC=y
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CONFIG_USB_FUNCTION_FASTBOOT=y
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CONFIG_FASTBOOT_BUF_ADDR=0x8a000000
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CONFIG_FASTBOOT_BUF_SIZE=0x30000000
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CONFIG_FASTBOOT_FLASH=y
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CONFIG_FASTBOOT_FLASH_MMC_DEV=0
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CONFIG_FASTBOOT_MMC_BOOT_SUPPORT=y
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CONFIG_FASTBOOT_CMD_OEM_FORMAT=y
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CONFIG_SUPPORT_EMMC_BOOT=y
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CONFIG_MMC_DW=y
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CONFIG_PHY=y
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CONFIG_PHY_EXYNOS_USBDRD=y
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CONFIG_DM_RTC=y
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CONFIG_RTC_EMULATION=y
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CONFIG_SOC_SAMSUNG=y
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@ -49,3 +62,11 @@ CONFIG_EXYNOS_PMU=y
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CONFIG_EXYNOS_USI=y
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CONFIG_SYSRESET=y
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CONFIG_SYSRESET_SYSCON=y
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CONFIG_USB=y
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CONFIG_DM_USB_GADGET=y
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CONFIG_USB_DWC3=y
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CONFIG_USB_DWC3_GENERIC=y
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CONFIG_USB_GADGET=y
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CONFIG_USB_GADGET_MANUFACTURER="Samsung"
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CONFIG_USB_GADGET_VENDOR_NUM=0x18d1
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CONFIG_USB_GADGET_PRODUCT_NUM=0x0002
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@ -43,17 +43,19 @@ Legend:
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BL31 in terms of ARM boot flow
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* ``LDFW``: Loadable Firmware
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Build Procedure
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Unbricking Note
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---------------
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.. warning::
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At the moment USB is not enabled in U-Boot for this board. Although eMMC is
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enabled, you won't be able to flash images over USB (fastboot). So flashing
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U-Boot binary **WILL** effectively brick your board. The ``dltool`` [8]_ can
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be used then to perform USB boot and flash LittleKernel bootloader binary [7]_
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to unbrick and revive the board. Flashing U-Boot binary might be helpful for
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developers or anybody who want to check current state of U-Boot enablement on
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E850-96 (which is mostly serial console, eMMC and related blocks).
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In case the board is bricked for some reason, the ``dltool`` [8]_ can be used to
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unbrick and revive it. This tool performs USB boot, and uploads the LittleKernel
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bootloader over USB, which is then being executed on the board. The loaded
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bootloader further enters fastboot mode, so that the user can flash the
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functional bootloader binary (U-Boot or LittleKernel [7]_) to eMMC using
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``fastboot`` tool. Please read the ``dltool`` README file for more details about
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the procedure.
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Build Procedure
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---------------
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Build U-Boot binary from source code (using AArch64 baremetal GCC toolchain):
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@ -64,8 +66,9 @@ Build U-Boot binary from source code (using AArch64 baremetal GCC toolchain):
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make e850-96_defconfig
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make
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Boot E850-96 board into fastboot mode as described in board software doc [9]_,
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and flash U-Boot binary into ``bootloader`` eMMC partition:
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The original E850-96 board is shipped with LittleKernel-based bootloader flashed
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in eMMC. To replace it with U-Boot, boot into fastboot mode (as described in
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the board software documentation [9]_), and flash U-Boot binary:
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.. prompt:: bash $
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@ -74,6 +77,66 @@ and flash U-Boot binary into ``bootloader`` eMMC partition:
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U-Boot will boot up to the shell.
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Flashing
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--------
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User area of eMMC contains GPT partition table (either Linux or Android). Boot
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Partition A (``mmc0boot0``) contains all firmware/bootloaders. Boot Partition
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B (``mmc0boot1``) contains U-Boot environment.
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First make sure to format eMMC accordingly. Prepare the initial environment:
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.. prompt:: bash =>
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env default -f -a
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env save
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|
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For Linux, just format eMMC using default ``$partitions`` definitions:
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|
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.. prompt:: bash =>
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gpt write mmc 0 $partitions
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|
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For Android, use ``$partitions_android`` instead:
|
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|
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.. prompt:: bash =>
|
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|
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setenv partitions_linux $partitions
|
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setenv partitions $partitions_android
|
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env save
|
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gpt write mmc 0 $partitions
|
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|
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In case of Linux, there are two partitions available: ``esp`` (EFI System
|
||||
Partition) and ``rootfs``. It is recommended to use fastboot to flash images to
|
||||
those partitions. Enter fastboot mode on your device:
|
||||
|
||||
.. prompt:: bash =>
|
||||
|
||||
fastboot usb 0
|
||||
|
||||
And then flash the images:
|
||||
|
||||
.. prompt:: bash $
|
||||
|
||||
fastboot flash esp esp.img
|
||||
fastboot flash rootfs rootfs.img
|
||||
|
||||
To update the firmware, it's easier to use DFU. Enter DFU mode on the board:
|
||||
|
||||
.. prompt:: bash =>
|
||||
|
||||
dfu 0 mmc 0
|
||||
|
||||
To update U-Boot:
|
||||
|
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.. prompt:: bash $
|
||||
|
||||
dfu-util -D u-boot.bin -a bootloader
|
||||
|
||||
It's also possible to use fastboot to flash the whole ``mmc0boot0`` HW
|
||||
partition, but it's not so straightforward, as one have to prepare the image for
|
||||
the whole ``boot0`` partition containing all firmware binaries first.
|
||||
|
||||
References
|
||||
----------
|
||||
|
||||
|
||||
@ -259,6 +259,15 @@ config MT76X8_USB_PHY
|
||||
|
||||
This PHY is found on MT76x8 devices supporting USB.
|
||||
|
||||
config PHY_EXYNOS_USBDRD
|
||||
bool "Exynos SoC series USB DRD PHY driver"
|
||||
depends on PHY && CLK
|
||||
depends on ARCH_EXYNOS
|
||||
select REGMAP
|
||||
select SYSCON
|
||||
help
|
||||
Enable USB DRD PHY support for Exynos SoC series.
|
||||
|
||||
config PHY_MTK_TPHY
|
||||
bool "MediaTek T-PHY Driver"
|
||||
depends on PHY
|
||||
|
||||
@ -35,6 +35,7 @@ obj-$(CONFIG_KEYSTONE_USB_PHY) += keystone-usb-phy.o
|
||||
obj-$(CONFIG_MT7620_USB_PHY) += mt7620-usb-phy.o
|
||||
obj-$(CONFIG_MT76X8_USB_PHY) += mt76x8-usb-phy.o
|
||||
obj-$(CONFIG_PHY_DA8XX_USB) += phy-da8xx-usb.o
|
||||
obj-$(CONFIG_PHY_EXYNOS_USBDRD) += phy-exynos-usbdrd.o
|
||||
obj-$(CONFIG_PHY_MTK_TPHY) += phy-mtk-tphy.o
|
||||
obj-$(CONFIG_PHY_NPCM_USB) += phy-npcm-usb.o
|
||||
obj-$(CONFIG_PHY_IMX8MQ_USB) += phy-imx8mq-usb.o
|
||||
|
||||
386
drivers/phy/phy-exynos-usbdrd.c
Normal file
386
drivers/phy/phy-exynos-usbdrd.c
Normal file
@ -0,0 +1,386 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-only
|
||||
/*
|
||||
* Copyright (C) 2025 Linaro Ltd.
|
||||
* Sam Protsenko <semen.protsenko@linaro.org>
|
||||
*
|
||||
* Samsung Exynos SoC series USB DRD PHY driver.
|
||||
* Based on Linux kernel PHY driver: drivers/phy/samsung/phy-exynos5-usbdrd.c
|
||||
*/
|
||||
|
||||
#include <clk.h>
|
||||
#include <dm.h>
|
||||
#include <generic-phy.h>
|
||||
#include <regmap.h>
|
||||
#include <syscon.h>
|
||||
#include <asm/io.h>
|
||||
#include <dm/device_compat.h>
|
||||
#include <linux/bitfield.h>
|
||||
#include <linux/bitops.h>
|
||||
#include <linux/delay.h>
|
||||
|
||||
/* Offset of PMU register controlling USB PHY output isolation */
|
||||
#define EXYNOS_USBDRD_PHY_CONTROL 0x0704
|
||||
#define EXYNOS_PHY_ENABLE BIT(0)
|
||||
|
||||
/* Exynos USB PHY registers */
|
||||
#define EXYNOS5_FSEL_9MHZ6 0x0
|
||||
#define EXYNOS5_FSEL_10MHZ 0x1
|
||||
#define EXYNOS5_FSEL_12MHZ 0x2
|
||||
#define EXYNOS5_FSEL_19MHZ2 0x3
|
||||
#define EXYNOS5_FSEL_20MHZ 0x4
|
||||
#define EXYNOS5_FSEL_24MHZ 0x5
|
||||
#define EXYNOS5_FSEL_26MHZ 0x6
|
||||
#define EXYNOS5_FSEL_50MHZ 0x7
|
||||
|
||||
/* Exynos850: USB DRD PHY registers */
|
||||
#define EXYNOS850_DRD_LINKCTRL 0x04
|
||||
#define LINKCTRL_FORCE_QACT BIT(8)
|
||||
#define LINKCTRL_BUS_FILTER_BYPASS GENMASK(7, 4)
|
||||
|
||||
#define EXYNOS850_DRD_CLKRST 0x20
|
||||
#define CLKRST_LINK_SW_RST BIT(0)
|
||||
#define CLKRST_PORT_RST BIT(1)
|
||||
#define CLKRST_PHY_SW_RST BIT(3)
|
||||
|
||||
#define EXYNOS850_DRD_SSPPLLCTL 0x30
|
||||
#define SSPPLLCTL_FSEL GENMASK(2, 0)
|
||||
|
||||
#define EXYNOS850_DRD_UTMI 0x50
|
||||
#define UTMI_FORCE_SLEEP BIT(0)
|
||||
#define UTMI_FORCE_SUSPEND BIT(1)
|
||||
#define UTMI_DM_PULLDOWN BIT(2)
|
||||
#define UTMI_DP_PULLDOWN BIT(3)
|
||||
#define UTMI_FORCE_BVALID BIT(4)
|
||||
#define UTMI_FORCE_VBUSVALID BIT(5)
|
||||
|
||||
#define EXYNOS850_DRD_HSP 0x54
|
||||
#define HSP_COMMONONN BIT(8)
|
||||
#define HSP_EN_UTMISUSPEND BIT(9)
|
||||
#define HSP_VBUSVLDEXT BIT(12)
|
||||
#define HSP_VBUSVLDEXTSEL BIT(13)
|
||||
#define HSP_FSV_OUT_EN BIT(24)
|
||||
|
||||
#define EXYNOS850_DRD_HSP_TEST 0x5c
|
||||
#define HSP_TEST_SIDDQ BIT(24)
|
||||
|
||||
#define KHZ 1000
|
||||
#define MHZ (KHZ * KHZ)
|
||||
|
||||
/**
|
||||
* struct exynos_usbdrd_phy - driver data for Exynos USB PHY
|
||||
* @reg_phy: USB PHY controller register memory base
|
||||
* @clk: clock for register access
|
||||
* @core_clk: core clock for phy (ref clock)
|
||||
* @reg_pmu: regmap for PMU block
|
||||
* @extrefclk: frequency select settings when using 'separate reference clocks'
|
||||
*/
|
||||
struct exynos_usbdrd_phy {
|
||||
void __iomem *reg_phy;
|
||||
struct clk *clk;
|
||||
struct clk *core_clk;
|
||||
struct regmap *reg_pmu;
|
||||
u32 extrefclk;
|
||||
};
|
||||
|
||||
static void exynos_usbdrd_phy_isol(struct regmap *reg_pmu, bool isolate)
|
||||
{
|
||||
unsigned int val;
|
||||
|
||||
if (!reg_pmu)
|
||||
return;
|
||||
|
||||
val = isolate ? 0 : EXYNOS_PHY_ENABLE;
|
||||
regmap_update_bits(reg_pmu, EXYNOS_USBDRD_PHY_CONTROL,
|
||||
EXYNOS_PHY_ENABLE, val);
|
||||
}
|
||||
|
||||
/*
|
||||
* Convert the supplied clock rate to the value that can be written to the PHY
|
||||
* register.
|
||||
*/
|
||||
static unsigned int exynos_rate_to_clk(unsigned long rate, u32 *reg)
|
||||
{
|
||||
switch (rate) {
|
||||
case 9600 * KHZ:
|
||||
*reg = EXYNOS5_FSEL_9MHZ6;
|
||||
break;
|
||||
case 10 * MHZ:
|
||||
*reg = EXYNOS5_FSEL_10MHZ;
|
||||
break;
|
||||
case 12 * MHZ:
|
||||
*reg = EXYNOS5_FSEL_12MHZ;
|
||||
break;
|
||||
case 19200 * KHZ:
|
||||
*reg = EXYNOS5_FSEL_19MHZ2;
|
||||
break;
|
||||
case 20 * MHZ:
|
||||
*reg = EXYNOS5_FSEL_20MHZ;
|
||||
break;
|
||||
case 24 * MHZ:
|
||||
*reg = EXYNOS5_FSEL_24MHZ;
|
||||
break;
|
||||
case 26 * MHZ:
|
||||
*reg = EXYNOS5_FSEL_26MHZ;
|
||||
break;
|
||||
case 50 * MHZ:
|
||||
*reg = EXYNOS5_FSEL_50MHZ;
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void exynos850_usbdrd_utmi_init(struct phy *phy)
|
||||
{
|
||||
struct exynos_usbdrd_phy *phy_drd = dev_get_priv(phy->dev);
|
||||
void __iomem *regs_base = phy_drd->reg_phy;
|
||||
u32 reg;
|
||||
|
||||
/*
|
||||
* Disable HWACG (hardware auto clock gating control). This will force
|
||||
* QACTIVE signal in Q-Channel interface to HIGH level, to make sure
|
||||
* the PHY clock is not gated by the hardware.
|
||||
*/
|
||||
reg = readl(regs_base + EXYNOS850_DRD_LINKCTRL);
|
||||
reg |= LINKCTRL_FORCE_QACT;
|
||||
writel(reg, regs_base + EXYNOS850_DRD_LINKCTRL);
|
||||
|
||||
/* Start PHY Reset (POR=high) */
|
||||
reg = readl(regs_base + EXYNOS850_DRD_CLKRST);
|
||||
reg |= CLKRST_PHY_SW_RST;
|
||||
writel(reg, regs_base + EXYNOS850_DRD_CLKRST);
|
||||
|
||||
/* Enable UTMI+ */
|
||||
reg = readl(regs_base + EXYNOS850_DRD_UTMI);
|
||||
reg &= ~(UTMI_FORCE_SUSPEND | UTMI_FORCE_SLEEP | UTMI_DP_PULLDOWN |
|
||||
UTMI_DM_PULLDOWN);
|
||||
writel(reg, regs_base + EXYNOS850_DRD_UTMI);
|
||||
|
||||
/* Set PHY clock and control HS PHY */
|
||||
reg = readl(regs_base + EXYNOS850_DRD_HSP);
|
||||
reg |= HSP_EN_UTMISUSPEND | HSP_COMMONONN;
|
||||
writel(reg, regs_base + EXYNOS850_DRD_HSP);
|
||||
|
||||
/* Set VBUS Valid and D+ pull-up control by VBUS pad usage */
|
||||
reg = readl(regs_base + EXYNOS850_DRD_LINKCTRL);
|
||||
reg |= FIELD_PREP(LINKCTRL_BUS_FILTER_BYPASS, 0xf);
|
||||
writel(reg, regs_base + EXYNOS850_DRD_LINKCTRL);
|
||||
|
||||
reg = readl(regs_base + EXYNOS850_DRD_UTMI);
|
||||
reg |= UTMI_FORCE_BVALID | UTMI_FORCE_VBUSVALID;
|
||||
writel(reg, regs_base + EXYNOS850_DRD_UTMI);
|
||||
|
||||
reg = readl(regs_base + EXYNOS850_DRD_HSP);
|
||||
reg |= HSP_VBUSVLDEXT | HSP_VBUSVLDEXTSEL;
|
||||
writel(reg, regs_base + EXYNOS850_DRD_HSP);
|
||||
|
||||
reg = readl(regs_base + EXYNOS850_DRD_SSPPLLCTL);
|
||||
reg &= ~SSPPLLCTL_FSEL;
|
||||
switch (phy_drd->extrefclk) {
|
||||
case EXYNOS5_FSEL_50MHZ:
|
||||
reg |= FIELD_PREP(SSPPLLCTL_FSEL, 7);
|
||||
break;
|
||||
case EXYNOS5_FSEL_26MHZ:
|
||||
reg |= FIELD_PREP(SSPPLLCTL_FSEL, 6);
|
||||
break;
|
||||
case EXYNOS5_FSEL_24MHZ:
|
||||
reg |= FIELD_PREP(SSPPLLCTL_FSEL, 2);
|
||||
break;
|
||||
case EXYNOS5_FSEL_20MHZ:
|
||||
reg |= FIELD_PREP(SSPPLLCTL_FSEL, 1);
|
||||
break;
|
||||
case EXYNOS5_FSEL_19MHZ2:
|
||||
reg |= FIELD_PREP(SSPPLLCTL_FSEL, 0);
|
||||
break;
|
||||
default:
|
||||
dev_warn(phy->dev, "unsupported ref clk: %#.2x\n",
|
||||
phy_drd->extrefclk);
|
||||
break;
|
||||
}
|
||||
writel(reg, regs_base + EXYNOS850_DRD_SSPPLLCTL);
|
||||
|
||||
/* Power up PHY analog blocks */
|
||||
reg = readl(regs_base + EXYNOS850_DRD_HSP_TEST);
|
||||
reg &= ~HSP_TEST_SIDDQ;
|
||||
writel(reg, regs_base + EXYNOS850_DRD_HSP_TEST);
|
||||
|
||||
/* Finish PHY reset (POR=low) */
|
||||
udelay(10); /* required before doing POR=low */
|
||||
reg = readl(regs_base + EXYNOS850_DRD_CLKRST);
|
||||
reg &= ~(CLKRST_PHY_SW_RST | CLKRST_PORT_RST);
|
||||
writel(reg, regs_base + EXYNOS850_DRD_CLKRST);
|
||||
udelay(75); /* required after POR=low for guaranteed PHY clock */
|
||||
|
||||
/* Disable single ended signal out */
|
||||
reg = readl(regs_base + EXYNOS850_DRD_HSP);
|
||||
reg &= ~HSP_FSV_OUT_EN;
|
||||
writel(reg, regs_base + EXYNOS850_DRD_HSP);
|
||||
}
|
||||
|
||||
static void exynos850_usbdrd_utmi_exit(struct phy *phy)
|
||||
{
|
||||
struct exynos_usbdrd_phy *phy_drd = dev_get_priv(phy->dev);
|
||||
void __iomem *regs_base = phy_drd->reg_phy;
|
||||
u32 reg;
|
||||
|
||||
/* Set PHY clock and control HS PHY */
|
||||
reg = readl(regs_base + EXYNOS850_DRD_UTMI);
|
||||
reg &= ~(UTMI_DP_PULLDOWN | UTMI_DM_PULLDOWN);
|
||||
reg |= UTMI_FORCE_SUSPEND | UTMI_FORCE_SLEEP;
|
||||
writel(reg, regs_base + EXYNOS850_DRD_UTMI);
|
||||
|
||||
/* Power down PHY analog blocks */
|
||||
reg = readl(regs_base + EXYNOS850_DRD_HSP_TEST);
|
||||
reg |= HSP_TEST_SIDDQ;
|
||||
writel(reg, regs_base + EXYNOS850_DRD_HSP_TEST);
|
||||
|
||||
/* Link reset */
|
||||
reg = readl(regs_base + EXYNOS850_DRD_CLKRST);
|
||||
reg |= CLKRST_LINK_SW_RST;
|
||||
writel(reg, regs_base + EXYNOS850_DRD_CLKRST);
|
||||
udelay(10); /* required before doing POR=low */
|
||||
reg &= ~CLKRST_LINK_SW_RST;
|
||||
writel(reg, regs_base + EXYNOS850_DRD_CLKRST);
|
||||
}
|
||||
|
||||
static int exynos_usbdrd_phy_init(struct phy *phy)
|
||||
{
|
||||
struct exynos_usbdrd_phy *phy_drd = dev_get_priv(phy->dev);
|
||||
int ret;
|
||||
|
||||
ret = clk_prepare_enable(phy_drd->clk);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
exynos850_usbdrd_utmi_init(phy);
|
||||
|
||||
clk_disable_unprepare(phy_drd->clk);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int exynos_usbdrd_phy_exit(struct phy *phy)
|
||||
{
|
||||
struct exynos_usbdrd_phy *phy_drd = dev_get_priv(phy->dev);
|
||||
int ret;
|
||||
|
||||
ret = clk_prepare_enable(phy_drd->clk);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
exynos850_usbdrd_utmi_exit(phy);
|
||||
|
||||
clk_disable_unprepare(phy_drd->clk);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int exynos_usbdrd_phy_power_on(struct phy *phy)
|
||||
{
|
||||
struct exynos_usbdrd_phy *phy_drd = dev_get_priv(phy->dev);
|
||||
int ret;
|
||||
|
||||
dev_dbg(phy->dev, "Request to power_on usbdrd_phy phy\n");
|
||||
|
||||
ret = clk_prepare_enable(phy_drd->core_clk);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
/* Power-on PHY */
|
||||
exynos_usbdrd_phy_isol(phy_drd->reg_pmu, false);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int exynos_usbdrd_phy_power_off(struct phy *phy)
|
||||
{
|
||||
struct exynos_usbdrd_phy *phy_drd = dev_get_priv(phy->dev);
|
||||
|
||||
dev_dbg(phy->dev, "Request to power_off usbdrd_phy phy\n");
|
||||
|
||||
/* Power-off the PHY */
|
||||
exynos_usbdrd_phy_isol(phy_drd->reg_pmu, true);
|
||||
|
||||
clk_disable_unprepare(phy_drd->core_clk);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int exynos_usbdrd_phy_init_clk(struct udevice *dev)
|
||||
{
|
||||
struct exynos_usbdrd_phy *phy_drd = dev_get_priv(dev);
|
||||
unsigned long ref_rate;
|
||||
int err;
|
||||
|
||||
phy_drd->clk = devm_clk_get(dev, "phy");
|
||||
if (IS_ERR(phy_drd->clk)) {
|
||||
err = PTR_ERR(phy_drd->clk);
|
||||
dev_err(dev, "Failed to get phy clock (err=%d)\n", err);
|
||||
return err;
|
||||
}
|
||||
|
||||
phy_drd->core_clk = devm_clk_get(dev, "ref");
|
||||
if (IS_ERR(phy_drd->core_clk)) {
|
||||
err = PTR_ERR(phy_drd->core_clk);
|
||||
dev_err(dev, "Failed to get ref clock (err=%d)\n", err);
|
||||
return err;
|
||||
}
|
||||
|
||||
ref_rate = clk_get_rate(phy_drd->core_clk);
|
||||
err = exynos_rate_to_clk(ref_rate, &phy_drd->extrefclk);
|
||||
if (err) {
|
||||
dev_err(dev, "Clock rate %lu not supported\n", ref_rate);
|
||||
return err;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int exynos_usbdrd_phy_probe(struct udevice *dev)
|
||||
{
|
||||
struct exynos_usbdrd_phy *phy_drd = dev_get_priv(dev);
|
||||
int err;
|
||||
|
||||
phy_drd->reg_phy = dev_read_addr_ptr(dev);
|
||||
if (!phy_drd->reg_phy)
|
||||
return -EINVAL;
|
||||
|
||||
err = exynos_usbdrd_phy_init_clk(dev);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
phy_drd->reg_pmu = syscon_regmap_lookup_by_phandle(dev,
|
||||
"samsung,pmu-syscon");
|
||||
if (IS_ERR(phy_drd->reg_pmu)) {
|
||||
err = PTR_ERR(phy_drd->reg_pmu);
|
||||
dev_err(dev, "Failed to lookup PMU regmap\n");
|
||||
return err;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct phy_ops exynos_usbdrd_phy_ops = {
|
||||
.init = exynos_usbdrd_phy_init,
|
||||
.exit = exynos_usbdrd_phy_exit,
|
||||
.power_on = exynos_usbdrd_phy_power_on,
|
||||
.power_off = exynos_usbdrd_phy_power_off,
|
||||
};
|
||||
|
||||
static const struct udevice_id exynos_usbdrd_phy_of_match[] = {
|
||||
{
|
||||
.compatible = "samsung,exynos850-usbdrd-phy",
|
||||
},
|
||||
{ }
|
||||
};
|
||||
|
||||
U_BOOT_DRIVER(exynos_usbdrd_phy) = {
|
||||
.name = "exynos-usbdrd-phy",
|
||||
.id = UCLASS_PHY,
|
||||
.of_match = exynos_usbdrd_phy_of_match,
|
||||
.probe = exynos_usbdrd_phy_probe,
|
||||
.ops = &exynos_usbdrd_phy_ops,
|
||||
.priv_auto = sizeof(struct exynos_usbdrd_phy),
|
||||
};
|
||||
@ -704,6 +704,7 @@ static const struct udevice_id dwc3_glue_ids[] = {
|
||||
{ .compatible = "fsl,imx8mp-dwc3", .data = (ulong)&imx8mp_ops },
|
||||
{ .compatible = "fsl,imx8mq-dwc3" },
|
||||
{ .compatible = "intel,tangier-dwc3" },
|
||||
{ .compatible = "samsung,exynos850-dwusb3" },
|
||||
{ }
|
||||
};
|
||||
|
||||
|
||||
@ -9,4 +9,25 @@
|
||||
#ifndef __E850_96_H
|
||||
#define __E850_96_H
|
||||
|
||||
/* GUIDs for capsule updatable firmware images */
|
||||
#define E850_96_FWBL1_IMAGE_GUID \
|
||||
EFI_GUID(0x181cd3f2, 0xe375, 0x44d2, 0x80, 0x78, \
|
||||
0x32, 0x21, 0xe1, 0xdf, 0xb9, 0x5e)
|
||||
|
||||
#define E850_96_EPBL_IMAGE_GUID \
|
||||
EFI_GUID(0x66c1a54d, 0xd149, 0x415d, 0xaa, 0xda, \
|
||||
0xb8, 0xae, 0xe4, 0x99, 0xb3, 0x70)
|
||||
|
||||
#define E850_96_BL2_IMAGE_GUID \
|
||||
EFI_GUID(0x89471c2a, 0x6c8d, 0x4158, 0xac, 0xad, \
|
||||
0x23, 0xd3, 0xb2, 0x87, 0x3d, 0x35)
|
||||
|
||||
#define E850_96_BOOTLOADER_IMAGE_GUID \
|
||||
EFI_GUID(0x629578c3, 0xffb3, 0x4a89, 0xac, 0x0c, \
|
||||
0x61, 0x18, 0x40, 0x72, 0x77, 0x79)
|
||||
|
||||
#define E850_96_EL3_MON_IMAGE_GUID \
|
||||
EFI_GUID(0xdf5718a2, 0x930a, 0x4916, 0xbb, 0x19, \
|
||||
0x32, 0x13, 0x21, 0x4d, 0x84, 0x86)
|
||||
|
||||
#endif /* __E850_96_H */
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user