diff options
Diffstat (limited to 'src/soc/intel')
| -rw-r--r-- | src/soc/intel/common/block/include/intelblocks/chip.h | 2 | ||||
| -rw-r--r-- | src/soc/intel/common/block/include/intelblocks/mmc.h (renamed from src/soc/intel/common/block/include/intelblocks/early_mmc.h) | 31 | ||||
| -rw-r--r-- | src/soc/intel/common/block/scs/Kconfig | 7 | ||||
| -rw-r--r-- | src/soc/intel/common/block/scs/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/soc/intel/common/block/scs/early_mmc.c | 35 | ||||
| -rw-r--r-- | src/soc/intel/common/block/scs/mmc.c | 95 |
6 files changed, 128 insertions, 43 deletions
diff --git a/src/soc/intel/common/block/include/intelblocks/chip.h b/src/soc/intel/common/block/include/intelblocks/chip.h index 9fe165e5b1..1e830d5d17 100644 --- a/src/soc/intel/common/block/include/intelblocks/chip.h +++ b/src/soc/intel/common/block/include/intelblocks/chip.h @@ -18,6 +18,7 @@ #include <intelblocks/gspi.h> #include <drivers/i2c/designware/dw_i2c.h> +#include <intelblocks/mmc.h> enum { CHIPSET_LOCKDOWN_FSP = 0, /* FSP handles locking per UPDs */ @@ -35,6 +36,7 @@ struct soc_intel_common_config { struct dw_i2c_bus_config i2c[CONFIG_SOC_INTEL_I2C_DEV_MAX]; /* PCH Thermal Trip Temperature in deg C */ uint8_t pch_thermal_trip; + struct mmc_dll_params emmc_dll; }; /* This function to retrieve soc config structure required by common code */ diff --git a/src/soc/intel/common/block/include/intelblocks/early_mmc.h b/src/soc/intel/common/block/include/intelblocks/mmc.h index 39aaf58fcf..a8776ea842 100644 --- a/src/soc/intel/common/block/include/intelblocks/early_mmc.h +++ b/src/soc/intel/common/block/include/intelblocks/mmc.h @@ -13,18 +13,12 @@ * GNU General Public License for more details. */ -#ifndef SOC_INTEL_COMMON_BLOCK_EARLY_MMC_H -#define SOC_INTEL_COMMON_BLOCK_EARLY_MMC_H +#ifndef SOC_INTEL_COMMON_BLOCK_MMC_H +#define SOC_INTEL_COMMON_BLOCK_MMC_H #include <stdint.h> /* - * Following should be defined in soc/iomap.h - * PRERAM_MMC_BASE_ADDRESS - Provide an address to setup emmc controller's - PCI BAR. - */ - -/* * Structure for the following delay registers * emmc_tx_data_cntl1: Tx Delay Control 1 (Tx_DATA_dly_1)-Offset 824h * emmc_tx_data_cntl2: Tx Delay Control 2 (Tx_DATA_dly_2)-Offset 828h @@ -60,9 +54,28 @@ int soc_configure_mmc_gpios(void); * returns 0, if able to get register settings; otherwise returns -1 */ int soc_get_mmc_dll(struct mmc_dll_params *params); +/* + * Set mmc delay register settings. + * bar: eMMC controller MMIO base address. + * returns 0, if able to set register settings; otherwise returns -1 + */ +int set_mmc_dll(void *bar); + +#define EMMC_TX_CMD_CNTL_OFFSET 0x820 +#define EMMC_TX_DATA_CNTL1_OFFSET 0x824 +#define EMMC_TX_DATA_CNTL2_OFFSET 0x828 +#define EMMC_RX_CMD_DATA_CNTL1_OFFSET 0x82C +#define EMMC_RX_STROBE_CNTL_OFFSET 0x830 +#define EMMC_RX_CMD_DATA_CNTL2_OFFSET 0x834 #if CONFIG(SOC_INTEL_COMMON_EARLY_MMC_WAKE) /* + * Following should be defined in soc/iomap.h + * PRERAM_MMC_BASE_ADDRESS - Provide an address to setup emmc controller's + PCI BAR. + */ + +/* * Initializes sdhci / mmc controller and sends CMD0, CMD1 to emmc card. * In case of success: It returns 0 and adds cbmem entry CBMEM_ID_MMC_STATUS * and sets it to 1. Payload can start by sending CMD1, there is no need to @@ -77,4 +90,4 @@ static inline int early_mmc_wake_hw(void) return -1; } #endif /* CONFIG_SOC_INTEL_COMMON_EARLY_MMC_WAKE */ -#endif /* SOC_INTEL_COMMON_BLOCK_EARLY_MMC_H */ +#endif /* SOC_INTEL_COMMON_BLOCK_MMC_H */ diff --git a/src/soc/intel/common/block/scs/Kconfig b/src/soc/intel/common/block/scs/Kconfig index 06ad8e4fa8..192425c4a0 100644 --- a/src/soc/intel/common/block/scs/Kconfig +++ b/src/soc/intel/common/block/scs/Kconfig @@ -12,3 +12,10 @@ config SOC_INTEL_COMMON_EARLY_MMC_WAKE help Send CMD1 early in romstage to improve boot time. It requires emmc DLL tuning parameters to be added to devicetree.cb + +config SOC_INTEL_COMMON_MMC_OVERRIDE + bool + default n + help + Override the MMC settings after FSP-S. + It should be used only when there is no FSP UPDs for certain setting. diff --git a/src/soc/intel/common/block/scs/Makefile.inc b/src/soc/intel/common/block/scs/Makefile.inc index 1160802d03..707a3342ad 100644 --- a/src/soc/intel/common/block/scs/Makefile.inc +++ b/src/soc/intel/common/block/scs/Makefile.inc @@ -1,2 +1,3 @@ ramstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_SCS) += sd.c +ramstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_SCS) += mmc.c romstage-$(CONFIG_SOC_INTEL_COMMON_EARLY_MMC_WAKE) += early_mmc.c diff --git a/src/soc/intel/common/block/scs/early_mmc.c b/src/soc/intel/common/block/scs/early_mmc.c index 8f47ec7d9e..80364500b9 100644 --- a/src/soc/intel/common/block/scs/early_mmc.c +++ b/src/soc/intel/common/block/scs/early_mmc.c @@ -21,18 +21,11 @@ #include <compiler.h> #include <console/console.h> #include <device/pci.h> -#include <intelblocks/early_mmc.h> +#include <intelblocks/mmc.h> #include <soc/iomap.h> #include <soc/pci_devs.h> #include <string.h> -#define EMMC_TX_CMD_CNTL_OFFSET 0x820 -#define EMMC_TX_DATA_CNTL1_OFFSET 0x824 -#define EMMC_TX_DATA_CNTL2_OFFSET 0x828 -#define EMMC_RX_CMD_DATA_CNTL1_OFFSET 0x82C -#define EMMC_RX_STROBE_CNTL_OFFSET 0x830 -#define EMMC_RX_CMD_DATA_CNTL2_OFFSET 0x834 - void soc_sd_mmc_controller_quirks(struct sd_mmc_ctrlr *ctrlr) { uint32_t f_min, f_max; @@ -62,32 +55,6 @@ static void disable_mmc_controller_bar(void) ~(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY)); } -static int set_mmc_dll(void *ioaddr) -{ - struct mmc_dll_params dll_params; - - if (soc_get_mmc_dll(&dll_params) < 0) { - printk(BIOS_ERR, - "MMC early init: failed to get mmc DLL parameters\n"); - return -1; - } - - write32(ioaddr + EMMC_TX_DATA_CNTL1_OFFSET, - dll_params.emmc_tx_data_cntl1); - write32(ioaddr + EMMC_TX_DATA_CNTL2_OFFSET, - dll_params.emmc_tx_data_cntl2); - write32(ioaddr + EMMC_RX_CMD_DATA_CNTL1_OFFSET, - dll_params.emmc_rx_cmd_data_cntl1); - write32(ioaddr + EMMC_RX_CMD_DATA_CNTL2_OFFSET, - dll_params.emmc_rx_cmd_data_cntl2); - write32(ioaddr + EMMC_RX_STROBE_CNTL_OFFSET, - dll_params.emmc_rx_strobe_cntl); - write32(ioaddr + EMMC_TX_CMD_CNTL_OFFSET, - dll_params.emmc_tx_cmd_cntl); - - return 0; -} - static void set_early_mmc_wake_status(int32_t status) { int32_t *ms_cbmem; diff --git a/src/soc/intel/common/block/scs/mmc.c b/src/soc/intel/common/block/scs/mmc.c new file mode 100644 index 0000000000..5b2e2c7d33 --- /dev/null +++ b/src/soc/intel/common/block/scs/mmc.c @@ -0,0 +1,95 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2019 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <device/pci.h> +#include <device/pci_ids.h> +#include <console/console.h> +#include <intelblocks/chip.h> +#include <intelblocks/mmc.h> + +static int mmc_write_dll_reg(void *bar, uint32_t reg, uint32_t val) +{ + int ret = 0; + if (val) { + write32(bar + reg, val); + ret = 1; + } + return ret; +} + +int set_mmc_dll(void *bar) +{ + const struct soc_intel_common_config *common_config; + const struct mmc_dll_params *dll_params; + int override = 0; + + common_config = chip_get_common_soc_structure(); + dll_params = &common_config->emmc_dll; + + override |= mmc_write_dll_reg(bar, EMMC_TX_CMD_CNTL_OFFSET, + dll_params->emmc_tx_cmd_cntl); + + override |= mmc_write_dll_reg(bar, EMMC_TX_DATA_CNTL1_OFFSET, + dll_params->emmc_tx_data_cntl1); + + override |= mmc_write_dll_reg(bar, EMMC_TX_DATA_CNTL2_OFFSET, + dll_params->emmc_tx_data_cntl2); + + override |= mmc_write_dll_reg(bar, EMMC_RX_CMD_DATA_CNTL1_OFFSET, + dll_params->emmc_rx_cmd_data_cntl1); + + override |= mmc_write_dll_reg(bar, EMMC_RX_STROBE_CNTL_OFFSET, + dll_params->emmc_rx_strobe_cntl); + + override |= mmc_write_dll_reg(bar, EMMC_RX_CMD_DATA_CNTL2_OFFSET, + dll_params->emmc_rx_cmd_data_cntl2); + + if (override == 0) { + printk(BIOS_INFO, "Skip Emmc dll value programming\n"); + return -1; + } + + return 0; +} + +static void mmc_soc_init(struct device *dev) +{ + const struct resource *res; + + if (!CONFIG(SOC_INTEL_COMMON_MMC_OVERRIDE)) + return; + + res = find_resource(dev, PCI_BASE_ADDRESS_0); + set_mmc_dll((void *)(uintptr_t)(res->base)); +} + +static struct device_operations dev_ops = { + .read_resources = pci_dev_read_resources, + .set_resources = pci_dev_set_resources, + .enable_resources = pci_dev_enable_resources, + .init = mmc_soc_init, + .ops_pci = &pci_dev_ops_pci, +}; + +static const unsigned short pci_device_ids[] = { + PCI_DEVICE_ID_INTEL_CMP_EMMC, + 0 +}; + +static const struct pci_driver pch_sd __pci_driver = { + .ops = &dev_ops, + .vendor = PCI_VENDOR_ID_INTEL, + .devices = pci_device_ids, +}; |