The memory and silicon init parts of the FSP need support code to work. Add this for apollolake.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v3: - Add bootstage timing for reading vbt - Add fspm_done() hook to handle FSP-S wierdness (it breaks SPI flash) - Don't allow BOOT_FROM_FAST_SPI_FLASH with FSP-S - Set boot_loader_tolum_size to 0 - Use the IRQ uclass instead of ITSS
Changes in v2: None
arch/x86/cpu/apollolake/Makefile | 6 + arch/x86/cpu/apollolake/fsp_m.c | 210 ++++++++++ arch/x86/cpu/apollolake/fsp_s.c | 665 +++++++++++++++++++++++++++++++ 3 files changed, 881 insertions(+) create mode 100644 arch/x86/cpu/apollolake/fsp_m.c create mode 100644 arch/x86/cpu/apollolake/fsp_s.c
diff --git a/arch/x86/cpu/apollolake/Makefile b/arch/x86/cpu/apollolake/Makefile index 7b040c37a72..d0cbeabaecb 100644 --- a/arch/x86/cpu/apollolake/Makefile +++ b/arch/x86/cpu/apollolake/Makefile @@ -9,6 +9,12 @@ obj-$(CONFIG_SPL_BUILD) += systemagent.o ifndef CONFIG_TPL_BUILD obj-y += cpu.o obj-y += punit.o +ifdef CONFIG_SPL_BUILD +obj-y += fsp_m.o +endif +endif +ifndef CONFIG_SPL_BUILD +obj-y += fsp_s.o endif
obj-y += gpio.o diff --git a/arch/x86/cpu/apollolake/fsp_m.c b/arch/x86/cpu/apollolake/fsp_m.c new file mode 100644 index 00000000000..39cda7c49bb --- /dev/null +++ b/arch/x86/cpu/apollolake/fsp_m.c @@ -0,0 +1,210 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2019 Google LLC + * Written by Simon Glass sjg@chromium.org + */ + +#include <common.h> +#include <dm.h> +#include <asm/arch/iomap.h> +#include <asm/arch/fsp/fsp_configs.h> +#include <asm/arch/fsp/fsp_m_upd.h> +#include <asm/fsp2/fsp_internal.h> +#include <dm/uclass-internal.h> + +/* + * ODT settings: + * If ODT PIN to LP4 DRAM is pulled HIGH for ODT_A and HIGH for ODT_B, + * choose ODT_A_B_HIGH_HIGH. If ODT PIN to LP4 DRAM is pulled HIGH for ODT_A + * and LOW for ODT_B, choose ODT_A_B_HIGH_LOW. + * + * Note that the enum values correspond to the interpreted UPD fields + * within Ch[3:0]_OdtConfig parameters. + */ +enum { + ODT_A_B_HIGH_LOW = 0 << 1, + ODT_A_B_HIGH_HIGH = 1 << 1, + N_WR_24 = 1 << 5, +}; + +/* + * LPDDR4 helper routines for configuring the memory UPD for LPDDR4 operation. + * There are four physical LPDDR4 channels, each 32-bits wide. There are two + * logical channels using two physical channels together to form a 64-bit + * interface to memory for each logical channel. + */ + +enum { + LP4_PHYS_CH0A, + LP4_PHYS_CH0B, + LP4_PHYS_CH1A, + LP4_PHYS_CH1B, + + LP4_NUM_PHYS_CHANNELS, +}; + +/* + * The DQs within a physical channel can be bit-swizzled within each byte. + * Within a channel the bytes can be swapped, but the DQs need to be routed + * with the corresponding DQS (strobe). + */ +enum { + LP4_DQS0, + LP4_DQS1, + LP4_DQS2, + LP4_DQS3, + + LP4_NUM_BYTE_LANES, + DQ_BITS_PER_DQS = 8, +}; + +/* Provide bit swizzling per DQS and byte swapping within a channel */ +struct lpddr4_chan_swizzle_cfg { + u8 dqs[LP4_NUM_BYTE_LANES][DQ_BITS_PER_DQS]; +}; + +struct lpddr4_swizzle_cfg { + struct lpddr4_chan_swizzle_cfg phys[LP4_NUM_PHYS_CHANNELS]; +}; + +static void setup_sdram(struct fsp_m_config *cfg, + const struct lpddr4_swizzle_cfg *swizzle_cfg) +{ + const struct lpddr4_chan_swizzle_cfg *sch; + /* Number of bytes to copy per DQS */ + const size_t sz = DQ_BITS_PER_DQS; + int chan; + + cfg->memory_down = 1; + cfg->scrambler_support = 1; + cfg->channel_hash_mask = 0x36; + cfg->slice_hash_mask = 9; + cfg->interleaved_mode = 2; + cfg->channels_slices_enable = 0; + cfg->min_ref_rate2x_enable = 0; + cfg->dual_rank_support_enable = 1; + + /* LPDDR4 is memory down so no SPD addresses */ + cfg->dimm0_spd_address = 0; + cfg->dimm1_spd_address = 0; + + for (chan = 0; chan < 4; chan++) { + struct fsp_ram_channel *ch = &cfg->chan[chan]; + + ch->rank_enable = 1; + ch->device_width = 1; + ch->dram_density = 2; + ch->option = 3; + ch->odt_config = ODT_A_B_HIGH_HIGH; + } + + /* + * CH0_DQB byte lanes in the bit swizzle configuration field are + * not 1:1. The mapping within the swizzling field is: + * indices [0:7] - byte lane 1 (DQS1) DQ[8:15] + * indices [8:15] - byte lane 0 (DQS0) DQ[0:7] + * indices [16:23] - byte lane 3 (DQS3) DQ[24:31] + * indices [24:31] - byte lane 2 (DQS2) DQ[16:23] + */ + sch = &swizzle_cfg->phys[LP4_PHYS_CH0B]; + memcpy(&cfg->ch_bit_swizzling[0][0], &sch->dqs[LP4_DQS1], sz); + memcpy(&cfg->ch_bit_swizzling[0][8], &sch->dqs[LP4_DQS0], sz); + memcpy(&cfg->ch_bit_swizzling[0][16], &sch->dqs[LP4_DQS3], sz); + memcpy(&cfg->ch_bit_swizzling[0][24], &sch->dqs[LP4_DQS2], sz); + + /* + * CH0_DQA byte lanes in the bit swizzle configuration field are 1:1. + */ + sch = &swizzle_cfg->phys[LP4_PHYS_CH0A]; + memcpy(&cfg->ch_bit_swizzling[1][0], &sch->dqs[LP4_DQS0], sz); + memcpy(&cfg->ch_bit_swizzling[1][8], &sch->dqs[LP4_DQS1], sz); + memcpy(&cfg->ch_bit_swizzling[1][16], &sch->dqs[LP4_DQS2], sz); + memcpy(&cfg->ch_bit_swizzling[1][24], &sch->dqs[LP4_DQS3], sz); + + sch = &swizzle_cfg->phys[LP4_PHYS_CH1B]; + memcpy(&cfg->ch_bit_swizzling[2][0], &sch->dqs[LP4_DQS1], sz); + memcpy(&cfg->ch_bit_swizzling[2][8], &sch->dqs[LP4_DQS0], sz); + memcpy(&cfg->ch_bit_swizzling[2][16], &sch->dqs[LP4_DQS3], sz); + memcpy(&cfg->ch_bit_swizzling[2][24], &sch->dqs[LP4_DQS2], sz); + + /* + * CH0_DQA byte lanes in the bit swizzle configuration field are 1:1. + */ + sch = &swizzle_cfg->phys[LP4_PHYS_CH1A]; + memcpy(&cfg->ch_bit_swizzling[3][0], &sch->dqs[LP4_DQS0], sz); + memcpy(&cfg->ch_bit_swizzling[3][8], &sch->dqs[LP4_DQS1], sz); + memcpy(&cfg->ch_bit_swizzling[3][16], &sch->dqs[LP4_DQS2], sz); + memcpy(&cfg->ch_bit_swizzling[3][24], &sch->dqs[LP4_DQS3], sz); +} + +int fspm_update_config(struct udevice *dev, struct fspm_upd *upd) +{ + struct fsp_m_config *cfg = &upd->config; + struct fspm_arch_upd *arch = &upd->arch; + + arch->nvs_buffer_ptr = NULL; + prepare_mrc_cache(upd); + arch->stack_base = (void *)0xfef96000; + arch->boot_loader_tolum_size = 0; + + arch->boot_mode = FSP_BOOT_WITH_FULL_CONFIGURATION; + cfg->serial_debug_port_type = 2; + cfg->serial_debug_port_device = 2; + cfg->serial_debug_port_stride_size = 2; + cfg->serial_debug_port_address = 0; + + cfg->package = 1; + /* Don't enforce a memory size limit */ + cfg->memory_size_limit = 0; + cfg->low_memory_max_value = 2048; /* 2 GB */ + /* No restrictions on memory above 4GiB */ + cfg->high_memory_max_value = 0; + + /* Always default to attempt to use saved training data */ + cfg->disable_fast_boot = 0; + + const u8 *swizzle_data; + + swizzle_data = dev_read_u8_array_ptr(dev, "lpddr4-swizzle", + LP4_NUM_BYTE_LANES * + DQ_BITS_PER_DQS * + LP4_NUM_PHYS_CHANNELS); + if (!swizzle_data) + return log_msg_ret("Cannot read swizzel data", -EINVAL); + + setup_sdram(cfg, (struct lpddr4_swizzle_cfg *)swizzle_data); + + cfg->pre_mem_gpio_table_ptr = 0; + + cfg->profile = 0xb; + cfg->msg_level_mask = 0; + + /* other */ + cfg->skip_cse_rbp = 1; + cfg->periodic_retraining_disable = 0; + cfg->enable_s3_heci2 = 0; + + return 0; +} + +/* + * The FSP-M binary appears to break the SPI controller. It can be fixed by + * writing the BAR again, so do that here + */ +int fspm_done(struct udevice *dev) +{ + struct udevice *spi; + int ret; + + /* Don't probe the device, since that reads the BAR */ + ret = uclass_find_first_device(UCLASS_SPI, &spi); + if (ret) + return log_msg_ret("SPI", ret); + if (!spi) + return log_msg_ret("SPI2", -ENODEV); + + dm_pci_write_config32(spi, PCI_BASE_ADDRESS_0, + IOMAP_SPI_BASE | PCI_BASE_ADDRESS_SPACE_MEMORY); + + return 0; +} diff --git a/arch/x86/cpu/apollolake/fsp_s.c b/arch/x86/cpu/apollolake/fsp_s.c new file mode 100644 index 00000000000..f4699e61009 --- /dev/null +++ b/arch/x86/cpu/apollolake/fsp_s.c @@ -0,0 +1,665 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2019 Google LLC + * Written by Simon Glass sjg@chromium.org + */ + +#include <common.h> +#include <acpi_s3.h> +#include <binman.h> +#include <dm.h> +#include <irq.h> +#include <asm/io.h> +#include <asm/intel_regs.h> +#include <asm/msr.h> +#include <asm/msr-index.h> +#include <asm/pci.h> +#include <asm/arch/cpu.h> +#include <asm/arch/gpio.h> +#include <asm/arch/systemagent.h> +#include <asm/arch/fsp/fsp_configs.h> +#include <asm/arch/fsp/fsp_s_upd.h> + +#define PCH_P2SB_E0 0xe0 +#define HIDE_BIT BIT(0) + +#define INTEL_GSPI_MAX 3 +#define INTEL_I2C_DEV_MAX 8 +#define APOLLOLAKE_USB2_PORT_MAX 8 + +enum { + CHIPSET_LOCKDOWN_FSP = 0, /* FSP handles locking per UPDs */ + CHIPSET_LOCKDOWN_COREBOOT, /* coreboot handles locking */ +}; + +enum i2c_speed { + I2C_SPEED_STANDARD = 100000, + I2C_SPEED_FAST = 400000, + I2C_SPEED_FAST_PLUS = 1000000, + I2C_SPEED_HIGH = 3400000, + I2C_SPEED_FAST_ULTRA = 5000000, +}; + +/* + * Timing values are in units of clock period, with the clock speed + * provided by the SOC in CONFIG_DRIVERS_I2C_DESIGNWARE_I2C_CLOCK_MHZ + * Automatic configuration is done based on requested speed, but the + * values may need tuned depending on the board and the number of + * devices present on the bus. + */ +struct dw_i2c_speed_config { + enum i2c_speed speed; + /* SCL high and low period count */ + u16 scl_lcnt; + u16 scl_hcnt; + /* + * SDA hold time should be 300ns in standard and fast modes + * and long enough for deterministic logic level change in + * fast-plus and high speed modes. + * + * [15:0] SDA TX Hold Time + * [23:16] SDA RX Hold Time + */ + u32 sda_hold; +}; + +/* Serial IRQ control. SERIRQ_QUIET is the default (0) */ +enum serirq_mode { + SERIRQ_QUIET, + SERIRQ_CONTINUOUS, + SERIRQ_OFF, +}; + +/* + * This I2C controller has support for 3 independent speed configs but can + * support both FAST_PLUS and HIGH speeds through the same set of speed + * config registers. These are treated separately so the speed config values + * can be provided via ACPI to the OS. + */ +#define DW_I2C_SPEED_CONFIG_COUNT 4 + +struct dw_i2c_bus_config { + /* Bus should be enabled prior to ramstage with temporary base */ + int early_init; + /* Bus speed in Hz, default is I2C_SPEED_FAST (400 KHz) */ + enum i2c_speed speed; + /* + * If rise_time_ns is non-zero the calculations for lcnt and hcnt + * registers take into account the times of the bus. However, if + * there is a match in speed_config those register values take + * precedence + */ + int rise_time_ns; + int fall_time_ns; + int data_hold_time_ns; + /* Specific bus speed configuration */ + struct dw_i2c_speed_config speed_config[DW_I2C_SPEED_CONFIG_COUNT]; +}; + +struct gspi_cfg { + /* Bus speed in MHz */ + u32 speed_mhz; + /* Bus should be enabled prior to ramstage with temporary base */ + u8 early_init; +}; + +/* + * This structure will hold data required by common blocks. + * These are soc specific configurations which will be filled by soc. + * We'll fill this structure once during init and use the data in common block. + */ +struct soc_intel_common_config { + int chipset_lockdown; + struct gspi_cfg gspi[INTEL_GSPI_MAX]; + struct dw_i2c_bus_config i2c[INTEL_I2C_DEV_MAX]; +}; + +enum pnp_settings { + PNP_PERF, + PNP_POWER, + PNP_PERF_POWER, +}; + +struct usb2_eye_per_port { + u8 Usb20PerPortTxPeHalf; + u8 Usb20PerPortPeTxiSet; + u8 Usb20PerPortTxiSet; + u8 Usb20HsSkewSel; + u8 Usb20IUsbTxEmphasisEn; + u8 Usb20PerPortRXISet; + u8 Usb20HsNpreDrvSel; + u8 Usb20OverrideEn; +}; + +struct apl_config { + /* Common structure containing soc config data required by common code*/ + struct soc_intel_common_config common_soc_config; + + /* + * Mapping from PCIe root port to CLKREQ input on the SOC. The SOC has + * four CLKREQ inputs, but six root ports. Root ports without an + * associated CLKREQ signal must be marked with "CLKREQ_DISABLED" + */ + u8 pcie_rp_clkreq_pin[MAX_PCIE_PORTS]; + + /* Enable/disable hot-plug for root ports (0 = disable, 1 = enable) */ + u8 pcie_rp_hotplug_enable[MAX_PCIE_PORTS]; + + /* De-emphasis enable configuration for each PCIe root port */ + u8 pcie_rp_deemphasis_enable[MAX_PCIE_PORTS]; + + /* [14:8] DDR mode Number of dealy elements.Each = 125pSec. + * [6:0] SDR mode Number of dealy elements.Each = 125pSec. + */ + u32 emmc_tx_cmd_cntl; + + /* [14:8] HS400 mode Number of dealy elements.Each = 125pSec. + * [6:0] SDR104/HS200 mode Number of dealy elements.Each = 125pSec. + */ + u32 emmc_tx_data_cntl1; + + /* [30:24] SDR50 mode Number of dealy elements.Each = 125pSec. + * [22:16] DDR50 mode Number of dealy elements.Each = 125pSec. + * [14:8] SDR25/HS50 mode Number of dealy elements.Each = 125pSec. + * [6:0] SDR12/Compatibility mode Number of dealy elements. + * Each = 125pSec. + */ + u32 emmc_tx_data_cntl2; + + /* [30:24] SDR50 mode Number of dealy elements.Each = 125pSec. + * [22:16] DDR50 mode Number of dealy elements.Each = 125pSec. + * [14:8] SDR25/HS50 mode Number of dealy elements.Each = 125pSec. + * [6:0] SDR12/Compatibility mode Number of dealy elements. + * Each = 125pSec. + */ + u32 emmc_rx_cmd_data_cntl1; + + /* [14:8] HS400 mode 1 Number of dealy elements.Each = 125pSec. + * [6:0] HS400 mode 2 Number of dealy elements.Each = 125pSec. + */ + u32 emmc_rx_strobe_cntl; + + /* [13:8] Auto Tuning mode Number of dealy elements.Each = 125pSec. + * [6:0] SDR104/HS200 Number of dealy elements.Each = 125pSec. + */ + u32 emmc_rx_cmd_data_cntl2; + + /* Select the eMMC max speed allowed */ + u32 emmc_host_max_speed; + + /* Specifies on which IRQ the SCI will internally appear */ + u32 sci_irq; + + /* Configure serial IRQ (SERIRQ) line */ + enum serirq_mode serirq_mode; + + /* Configure LPSS S0ix Enable */ + bool lpss_s0ix_enable; + + /* Enable DPTF support */ + bool dptf_enable; + + /* TCC activation offset value in degrees Celsius */ + int tcc_offset; + + /* Configure Audio clk gate and power gate + * IOSF-SB port ID 92 offset 0x530 [5] and [3] + */ + bool hdaudio_clk_gate_enable; + bool hdaudio_pwr_gate_enable; + bool hdaudio_bios_config_lockdown; + + /* SLP S3 minimum assertion width */ + int slp_s3_assertion_width_usecs; + + /* GPIO pin for PERST_0 */ + u32 prt0_gpio; + + /* USB2 eye diagram settings per port */ + struct usb2_eye_per_port usb2eye[APOLLOLAKE_USB2_PORT_MAX]; + + /* GPIO SD card detect pin */ + unsigned int sdcard_cd_gpio; + + /* + * PRMRR size setting with three options + * 0x02000000 - 32MiB + * 0x04000000 - 64MiB + * 0x08000000 - 128MiB + */ + u32 PrmrrSize; + + /* + * Enable SGX feature. + * Enabling SGX feature is 2 step process, + * (1) set sgx_enable = 1 + * (2) set PrmrrSize to supported size + */ + bool sgx_enable; + + /* + * Select PNP Settings. + * (0) Performance, + * (1) Power + * (2) Power & Performance + */ + enum pnp_settings pnp_settings; + + /* + * PMIC PCH_PWROK delay configuration - IPC Configuration + * Upd for changing PCH_PWROK delay configuration : I2C_Slave_Address + * (31:24) + Register_Offset (23:16) + OR Value (15:8) + AND Value (7:0) + */ + u32 PmicPmcIpcCtrl; + + /* + * Options to disable XHCI Link Compliance Mode. Default is FALSE to not + * disable Compliance Mode. Set TRUE to disable Compliance Mode. + * 0:FALSE(Default), 1:True. + */ + bool DisableComplianceMode; + + /* + * Options to change USB3 ModPhy setting for the Integrated Filter (IF) + * value. Default is 0 to not changing default IF value (0x12). Set + * value with the range from 0x01 to 0xff to change IF value. + */ + u32 ModPhyIfValue; + + /* + * Options to bump USB3 LDO voltage. Default is FALSE to not increasing + * LDO voltage. Set TRUE to increase LDO voltage with 40mV. + * 0:FALSE (default), 1:True. + */ + bool ModPhyVoltageBump; + + /* + * Options to adjust PMIC Vdd2 voltage. Default is 0 to not adjusting + * the PMIC Vdd2 default voltage 1.20v. Upd for changing Vdd2 Voltage + * configuration: I2C_Slave_Address (31:23) + Register_Offset (23:16) + * + OR Value (15:8) + AND Value (7:0) through BUCK5_VID[3:2]: + * 00=1.10v, 01=1.15v, 10=1.24v, 11=1.20v (default). + */ + u32 PmicVdd2Voltage; + + /* + * Option to enable VTD feature. Default is 0 which disables VTD + * capability in FSP. Setting this option to 1 in devicetree will enable + * the Upd parameter VtdEnable. + */ + bool enable_vtd; +}; + +static int get_config(struct udevice *dev, struct apl_config *apl) +{ + const u8 *ptr; + ofnode node; + u32 emmc[4]; + int ret; + + memset(apl, '\0', sizeof(*apl)); + + node = dev_read_subnode(dev, "fsp-s"); + if (!ofnode_valid(node)) + return log_msg_ret("fsp-s settings", -ENOENT); + + ptr = ofnode_read_u8_array_ptr(node, "pcie-rp-clkreq-pin", + MAX_PCIE_PORTS); + if (!ptr) + return log_msg_ret("pcie-rp-clkreq-pin", -EINVAL); + memcpy(apl->pcie_rp_clkreq_pin, ptr, MAX_PCIE_PORTS); + + ret = ofnode_read_u32(node, "prt0-gpio", &apl->prt0_gpio); + if (ret) + return log_msg_ret("prt0-gpio", ret); + ret = ofnode_read_u32(node, "sdcard-cd-gpio", &apl->sdcard_cd_gpio); + if (ret) + return log_msg_ret("sdcard-cd-gpio", ret); + + ret = ofnode_read_u32_array(node, "emmc", emmc, ARRAY_SIZE(emmc)); + if (ret) + return log_msg_ret("emmc", ret); + apl->emmc_tx_data_cntl1 = emmc[0]; + apl->emmc_tx_data_cntl2 = emmc[1]; + apl->emmc_rx_cmd_data_cntl1 = emmc[2]; + apl->emmc_rx_cmd_data_cntl2 = emmc[3]; + + apl->dptf_enable = ofnode_read_bool(node, "dptf-enable"); + + apl->hdaudio_clk_gate_enable = ofnode_read_bool(node, + "hdaudio-clk-gate-enable"); + apl->hdaudio_pwr_gate_enable = ofnode_read_bool(node, + "hdaudio-pwr-gate-enable"); + apl->hdaudio_bios_config_lockdown = ofnode_read_bool(node, + "hdaudio-bios-config-lockdown"); + apl->lpss_s0ix_enable = ofnode_read_bool(node, "lpss-s0ix-enable"); + + /* Santa */ + apl->usb2eye[1].Usb20PerPortPeTxiSet = 7; + apl->usb2eye[1].Usb20PerPortTxiSet = 2; + + return 0; +} + +static void apl_fsp_silicon_init_params_cb(struct apl_config *apl, + struct fsp_s_config *cfg) +{ + u8 port; + + for (port = 0; port < APOLLOLAKE_USB2_PORT_MAX; port++) { + if (apl->usb2eye[port].Usb20PerPortTxPeHalf) + cfg->port_usb20_per_port_tx_pe_half[port] = + apl->usb2eye[port].Usb20PerPortTxPeHalf; + + if (apl->usb2eye[port].Usb20PerPortPeTxiSet) + cfg->port_usb20_per_port_pe_txi_set[port] = + apl->usb2eye[port].Usb20PerPortPeTxiSet; + + if (apl->usb2eye[port].Usb20PerPortTxiSet) + cfg->port_usb20_per_port_txi_set[port] = + apl->usb2eye[port].Usb20PerPortTxiSet; + + if (apl->usb2eye[port].Usb20HsSkewSel) + cfg->port_usb20_hs_skew_sel[port] = + apl->usb2eye[port].Usb20HsSkewSel; + + if (apl->usb2eye[port].Usb20IUsbTxEmphasisEn) + cfg->port_usb20_i_usb_tx_emphasis_en[port] = + apl->usb2eye[port].Usb20IUsbTxEmphasisEn; + + if (apl->usb2eye[port].Usb20PerPortRXISet) + cfg->port_usb20_per_port_rxi_set[port] = + apl->usb2eye[port].Usb20PerPortRXISet; + + if (apl->usb2eye[port].Usb20HsNpreDrvSel) + cfg->port_usb20_hs_npre_drv_sel[port] = + apl->usb2eye[port].Usb20HsNpreDrvSel; + } +} + +int fsps_update_config(struct udevice *dev, ulong rom_offset, + struct fsps_upd *upd) +{ + struct fsp_s_config *cfg = &upd->config; + struct apl_config apl_cfg, *apl = &apl_cfg; + struct binman_entry vbt; + void *buf; + int ret; + + ret = binman_entry_find("intel-vbt", &vbt); + if (ret) + return log_msg_ret("Cannot find VBT", ret); + vbt.image_pos += rom_offset; + buf = malloc(vbt.size); + if (!buf) + return log_msg_ret("Alloc VBT", -ENOMEM); + + /* + * Load VBT before devicetree-specific config. This only supports + * memory-mapped SPI at present. + */ + bootstage_start(BOOTSTAGE_ID_ACCUM_MMAP_SPI, "mmap_spi"); + memcpy(buf, (void *)vbt.image_pos, vbt.size); + bootstage_accum(BOOTSTAGE_ID_ACCUM_MMAP_SPI); + if (*(u32 *)buf != VBT_SIGNATURE) + return log_msg_ret("VBT signature", -EINVAL); + cfg->graphics_config_ptr = (ulong)buf; + + get_config(dev, apl); + + cfg->ish_enable = 0; + cfg->enable_sata = 0; + cfg->pcie_root_port_en[2] = 0; + cfg->pcie_rp_hot_plug[2] = 0; + cfg->pcie_root_port_en[3] = 0; + cfg->pcie_rp_hot_plug[3] = 0; + cfg->pcie_root_port_en[4] = 0; + cfg->pcie_rp_hot_plug[4] = 0; + cfg->pcie_root_port_en[5] = 0; + cfg->pcie_rp_hot_plug[5] = 0; + cfg->pcie_root_port_en[1] = 0; + cfg->pcie_rp_hot_plug[1] = 0; + cfg->usb_otg = 0; + cfg->i2c6_enable = 0; + cfg->i2c7_enable = 0; + cfg->hsuart3_enable = 0; + cfg->spi1_enable = 0; + cfg->spi2_enable = 0; + cfg->sdio_enabled = 0; + + memcpy(cfg->pcie_rp_clk_req_number, apl->pcie_rp_clkreq_pin, + sizeof(cfg->pcie_rp_clk_req_number)); + + memcpy(cfg->pcie_rp_hot_plug, apl->pcie_rp_hotplug_enable, + sizeof(cfg->pcie_rp_hot_plug)); + + switch (apl->serirq_mode) { + case SERIRQ_QUIET: + cfg->sirq_enable = 1; + cfg->sirq_mode = 0; + break; + case SERIRQ_CONTINUOUS: + cfg->sirq_enable = 1; + cfg->sirq_mode = 1; + break; + case SERIRQ_OFF: + default: + cfg->sirq_enable = 0; + break; + } + + if (apl->emmc_tx_cmd_cntl) + cfg->emmc_tx_cmd_cntl = apl->emmc_tx_cmd_cntl; + if (apl->emmc_tx_data_cntl1) + cfg->emmc_tx_data_cntl1 = apl->emmc_tx_data_cntl1; + if (apl->emmc_tx_data_cntl2) + cfg->emmc_tx_data_cntl2 = apl->emmc_tx_data_cntl2; + if (apl->emmc_rx_cmd_data_cntl1) + cfg->emmc_rx_cmd_data_cntl1 = apl->emmc_rx_cmd_data_cntl1; + if (apl->emmc_rx_strobe_cntl) + cfg->emmc_rx_strobe_cntl = apl->emmc_rx_strobe_cntl; + if (apl->emmc_rx_cmd_data_cntl2) + cfg->emmc_rx_cmd_data_cntl2 = apl->emmc_rx_cmd_data_cntl2; + if (apl->emmc_host_max_speed) + cfg->e_mmc_host_max_speed = apl->emmc_host_max_speed; + + cfg->lpss_s0ix_enable = apl->lpss_s0ix_enable; + + /* + * Disable monitor mwait since it is broken due to a hardware bug + * without a fix. Specific to Apollolake. + */ + if (!IS_ENABLED(CONFIG_SOC_INTEL_GLK)) + cfg->monitor_mwait_enable = 0; + + cfg->skip_mp_init = true; + + /* Disable setting of EISS bit in FSP */ + cfg->spi_eiss = 0; + + /* Disable FSP from locking access to the RTC NVRAM */ + cfg->rtc_lock = 0; + + /* Enable Audio clk gate and power gate */ + cfg->hd_audio_clk_gate = apl->hdaudio_clk_gate_enable; + cfg->hd_audio_pwr_gate = apl->hdaudio_pwr_gate_enable; + /* Bios config lockdown Audio clk and power gate */ + cfg->bios_cfg_lock_down = apl->hdaudio_bios_config_lockdown; + apl_fsp_silicon_init_params_cb(apl, cfg); + + cfg->usb_otg = true; + + /* Set VTD feature according to devicetree */ + cfg->vtd_enable = apl->enable_vtd; + + return 0; +} + +static void p2sb_set_hide_bit(pci_dev_t dev, int hide) +{ + pci_x86_clrset_config(dev, PCH_P2SB_E0 + 1, HIDE_BIT, + hide ? HIDE_BIT : 0, PCI_SIZE_8); +} + +/* Configure package power limits */ +static int set_power_limits(struct udevice *dev) +{ + msr_t rapl_msr_reg, limit; + u32 power_unit; + u32 tdp, min_power, max_power; + u32 pl2_val; + u32 override_tdp[2]; + int ret; + + /* Get units */ + rapl_msr_reg = msr_read(MSR_PKG_POWER_SKU_UNIT); + power_unit = 1 << (rapl_msr_reg.lo & 0xf); + + /* Get power defaults for this SKU */ + rapl_msr_reg = msr_read(MSR_PKG_POWER_SKU); + tdp = rapl_msr_reg.lo & PKG_POWER_LIMIT_MASK; + pl2_val = rapl_msr_reg.hi & PKG_POWER_LIMIT_MASK; + min_power = (rapl_msr_reg.lo >> 16) & PKG_POWER_LIMIT_MASK; + max_power = rapl_msr_reg.hi & PKG_POWER_LIMIT_MASK; + + if (min_power > 0 && tdp < min_power) + tdp = min_power; + + if (max_power > 0 && tdp > max_power) + tdp = max_power; + + ret = dev_read_u32_array(dev, "tdp-pl-override-mw", override_tdp, + ARRAY_SIZE(override_tdp)); + if (ret) + return log_msg_ret("tdp-pl-override-mw", ret); + + /* Set PL1 override value */ + if (override_tdp[0]) + tdp = override_tdp[0] * power_unit / 1000; + + /* Set PL2 override value */ + if (override_tdp[1]) + pl2_val = override_tdp[1] * power_unit / 1000; + + /* Set long term power limit to TDP */ + limit.lo = tdp & PKG_POWER_LIMIT_MASK; + /* Set PL1 Pkg Power clamp bit */ + limit.lo |= PKG_POWER_LIMIT_CLAMP; + + limit.lo |= PKG_POWER_LIMIT_EN; + limit.lo |= (MB_POWER_LIMIT1_TIME_DEFAULT & + PKG_POWER_LIMIT_TIME_MASK) << PKG_POWER_LIMIT_TIME_SHIFT; + + /* Set short term power limit PL2 */ + limit.hi = pl2_val & PKG_POWER_LIMIT_MASK; + limit.hi |= PKG_POWER_LIMIT_EN; + + /* Program package power limits in RAPL MSR */ + msr_write(MSR_PKG_POWER_LIMIT, limit); + log_info("RAPL PL1 %d.%dW\n", tdp / power_unit, + 100 * (tdp % power_unit) / power_unit); + log_info("RAPL PL2 %d.%dW\n", pl2_val / power_unit, + 100 * (pl2_val % power_unit) / power_unit); + + /* + * Sett RAPL MMIO register for Power limits. RAPL driver is using MSR + * instead of MMIO, so disable LIMIT_EN bit for MMIO + */ + writel(limit.lo & ~PKG_POWER_LIMIT_EN, MCHBAR_REG(MCHBAR_RAPL_PPL)); + writel(limit.hi & ~PKG_POWER_LIMIT_EN, MCHBAR_REG(MCHBAR_RAPL_PPL + 4)); + + return 0; +} + +int p2sb_unhide(void) +{ + pci_dev_t dev = PCI_BDF(0, 0xd, 0); + ulong val; + + p2sb_set_hide_bit(dev, 0); + + pci_x86_read_config(dev, PCI_VENDOR_ID, &val, PCI_SIZE_16); + + if (val != PCI_VENDOR_ID_INTEL) + return log_msg_ret("p2sb unhide", -EIO); + + return 0; +} + +/* Overwrites the SCI IRQ if another IRQ number is given by device tree */ +static void set_sci_irq(void) +{ + /* Skip this for now */ +} + +int arch_fsp_s_preinit(void) +{ + struct udevice *itss; + int ret; + + ret = uclass_first_device_err(UCLASS_IRQ, &itss); + if (ret) + return log_msg_ret("no itss", ret); + /* + * Snapshot the current GPIO IRQ polarities. FSP is setting a default + * policy that doesn't honour boards' requirements + */ + irq_snapshot_polarities(itss); + + /* + * Clear the GPI interrupt status and enable registers. These + * registers do not get reset to default state when booting from S5. + */ + ret = gpio_gpi_clear_int_cfg(); + if (ret) + return log_msg_ret("gpi_clear", ret); + + return 0; +} + +int arch_fsp_init_r(void) +{ +#ifdef CONFIG_HAVE_ACPI_RESUME + bool s3wake = gd->arch.prev_sleep_state == ACPI_S3; +#else + bool s3wake = false; +#endif + struct udevice *dev, *itss; + int ret; + + /* + * This must be called before any devices are probed. Put any probing + * into arch_fsp_s_preinit() above. + * + * We don't use BOOT_FROM_FAST_SPI_FLASH here since it will force PCI + * to be probed. + */ + ret = fsp_silicon_init(s3wake, false); + if (ret) + return ret; + + ret = uclass_first_device_err(UCLASS_IRQ, &itss); + if (ret) + return log_msg_ret("no itss", ret); + /* Restore GPIO IRQ polarities back to previous settings */ + irq_restore_polarities(itss); + + /* soc_init() */ + ret = p2sb_unhide(); + if (ret) + return log_msg_ret("unhide p2sb", ret); + + /* Set RAPL MSR for Package power limits*/ + ret = uclass_first_device_err(UCLASS_NORTHBRIDGE, &dev); + if (ret) + return log_msg_ret("Cannot get northbridge", ret); + set_power_limits(dev); + + /* + * FSP-S routes SCI to IRQ 9. With the help of this function you can + * select another IRQ for SCI. + */ + set_sci_irq(); + + return 0; +}