1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright 2019 Google LLC
4 * Written by Simon Glass <sjg@chromium.org>
14 #include <acpi/acpi_s3.h>
15 #include <asm/intel_pinctrl.h>
17 #include <asm/intel_regs.h>
19 #include <asm/msr-index.h>
21 #include <asm/arch/cpu.h>
22 #include <asm/arch/systemagent.h>
23 #include <asm/arch/fsp/fsp_configs.h>
24 #include <asm/arch/fsp/fsp_s_upd.h>
26 #define PCH_P2SB_E0 0xe0
27 #define HIDE_BIT BIT(0)
29 #define INTEL_GSPI_MAX 3
30 #define MAX_USB2_PORTS 8
33 CHIPSET_LOCKDOWN_FSP = 0, /* FSP handles locking per UPDs */
34 CHIPSET_LOCKDOWN_COREBOOT, /* coreboot handles locking */
37 /* Serial IRQ control. SERIRQ_QUIET is the default (0) */
45 /* Bus speed in MHz */
47 /* Bus should be enabled prior to ramstage with temporary base */
52 * This structure will hold data required by common blocks.
53 * These are soc specific configurations which will be filled by soc.
54 * We'll fill this structure once during init and use the data in common block.
56 struct soc_intel_common_config {
58 struct gspi_cfg gspi[INTEL_GSPI_MAX];
67 struct usb2_eye_per_port {
68 u8 per_port_tx_pe_half;
69 u8 per_port_pe_txi_set;
72 u8 usb_tx_emphasis_en;
79 /* Common structure containing soc config data required by common code*/
80 struct soc_intel_common_config common_soc_config;
83 * Mapping from PCIe root port to CLKREQ input on the SOC. The SOC has
84 * four CLKREQ inputs, but six root ports. Root ports without an
85 * associated CLKREQ signal must be marked with "CLKREQ_DISABLED"
87 u8 pcie_rp_clkreq_pin[MAX_PCIE_PORTS];
89 /* Enable/disable hot-plug for root ports (0 = disable, 1 = enable) */
90 u8 pcie_rp_hotplug_enable[MAX_PCIE_PORTS];
92 /* De-emphasis enable configuration for each PCIe root port */
93 u8 pcie_rp_deemphasis_enable[MAX_PCIE_PORTS];
96 * [14:8] DDR mode Number of dealy elements.Each = 125pSec.
97 * [6:0] SDR mode Number of dealy elements.Each = 125pSec.
102 * [14:8] HS400 mode Number of dealy elements.Each = 125pSec.
103 * [6:0] SDR104/HS200 mode Number of dealy elements.Each = 125pSec.
105 u32 emmc_tx_data_cntl1;
108 * [30:24] SDR50 mode Number of dealy elements.Each = 125pSec.
109 * [22:16] DDR50 mode Number of dealy elements.Each = 125pSec.
110 * [14:8] SDR25/HS50 mode Number of dealy elements.Each = 125pSec.
111 * [6:0] SDR12/Compatibility mode Number of dealy elements.
114 u32 emmc_tx_data_cntl2;
117 * [30:24] SDR50 mode Number of dealy elements.Each = 125pSec.
118 * [22:16] DDR50 mode Number of dealy elements.Each = 125pSec.
119 * [14:8] SDR25/HS50 mode Number of dealy elements.Each = 125pSec.
120 * [6:0] SDR12/Compatibility mode Number of dealy elements.
123 u32 emmc_rx_cmd_data_cntl1;
126 * [14:8] HS400 mode 1 Number of dealy elements.Each = 125pSec.
127 * [6:0] HS400 mode 2 Number of dealy elements.Each = 125pSec.
129 u32 emmc_rx_strobe_cntl;
132 * [13:8] Auto Tuning mode Number of dealy elements.Each = 125pSec.
133 * [6:0] SDR104/HS200 Number of dealy elements.Each = 125pSec.
135 u32 emmc_rx_cmd_data_cntl2;
137 /* Select the eMMC max speed allowed */
138 u32 emmc_host_max_speed;
140 /* Specifies on which IRQ the SCI will internally appear */
143 /* Configure serial IRQ (SERIRQ) line */
144 enum serirq_mode serirq_mode;
146 /* Configure LPSS S0ix Enable */
147 bool lpss_s0ix_enable;
149 /* Enable DPTF support */
152 /* TCC activation offset value in degrees Celsius */
156 * Configure Audio clk gate and power gate
157 * IOSF-SB port ID 92 offset 0x530 [5] and [3]
159 bool hdaudio_clk_gate_enable;
160 bool hdaudio_pwr_gate_enable;
161 bool hdaudio_bios_config_lockdown;
163 /* SLP S3 minimum assertion width */
164 int slp_s3_assertion_width_usecs;
166 /* GPIO pin for PERST_0 */
169 /* USB2 eye diagram settings per port */
170 struct usb2_eye_per_port usb2eye[MAX_USB2_PORTS];
172 /* GPIO SD card detect pin */
173 unsigned int sdcard_cd_gpio;
176 * PRMRR size setting with three options
179 * 0x08000000 - 128MiB
184 * Enable SGX feature.
185 * Enabling SGX feature is 2 step process,
186 * (1) set sgx_enable = 1
187 * (2) set PrmrrSize to supported size
192 * Select PNP Settings.
195 * (2) Power & Performance
197 enum pnp_settings pnp_settings;
200 * PMIC PCH_PWROK delay configuration - IPC Configuration
201 * Upd for changing PCH_PWROK delay configuration : I2C_Slave_Address
202 * (31:24) + Register_Offset (23:16) + OR Value (15:8) + AND Value (7:0)
204 u32 pmic_pmc_ipc_ctrl;
207 * Options to disable XHCI Link Compliance Mode. Default is FALSE to not
208 * disable Compliance Mode. Set TRUE to disable Compliance Mode.
209 * 0:FALSE(Default), 1:True.
211 bool disable_compliance_mode;
214 * Options to change USB3 ModPhy setting for the Integrated Filter (IF)
215 * value. Default is 0 to not changing default IF value (0x12). Set
216 * value with the range from 0x01 to 0xff to change IF value.
218 u32 mod_phy_if_value;
221 * Options to bump USB3 LDO voltage. Default is FALSE to not increasing
222 * LDO voltage. Set TRUE to increase LDO voltage with 40mV.
223 * 0:FALSE (default), 1:True.
225 bool mod_phy_voltage_bump;
228 * Options to adjust PMIC Vdd2 voltage. Default is 0 to not adjusting
229 * the PMIC Vdd2 default voltage 1.20v. Upd for changing Vdd2 Voltage
230 * configuration: I2C_Slave_Address (31:23) + Register_Offset (23:16)
231 * + OR Value (15:8) + AND Value (7:0) through BUCK5_VID[3:2]:
232 * 00=1.10v, 01=1.15v, 10=1.24v, 11=1.20v (default).
234 u32 pmic_vdd2_voltage;
236 /* Option to enable VTD feature */
240 static int get_config(struct udevice *dev, struct apl_config *apl)
247 memset(apl, '\0', sizeof(*apl));
249 node = dev_read_subnode(dev, "fsp-s");
250 if (!ofnode_valid(node))
251 return log_msg_ret("fsp-s settings", -ENOENT);
253 ptr = ofnode_read_u8_array_ptr(node, "pcie-rp-clkreq-pin",
256 return log_msg_ret("pcie-rp-clkreq-pin", -EINVAL);
257 memcpy(apl->pcie_rp_clkreq_pin, ptr, MAX_PCIE_PORTS);
259 ret = ofnode_read_u32(node, "prt0-gpio", &apl->prt0_gpio);
261 return log_msg_ret("prt0-gpio", ret);
262 ret = ofnode_read_u32(node, "sdcard-cd-gpio", &apl->sdcard_cd_gpio);
264 return log_msg_ret("sdcard-cd-gpio", ret);
266 ret = ofnode_read_u32_array(node, "emmc", emmc, ARRAY_SIZE(emmc));
268 return log_msg_ret("emmc", ret);
269 apl->emmc_tx_data_cntl1 = emmc[0];
270 apl->emmc_tx_data_cntl2 = emmc[1];
271 apl->emmc_rx_cmd_data_cntl1 = emmc[2];
272 apl->emmc_rx_cmd_data_cntl2 = emmc[3];
274 apl->dptf_enable = ofnode_read_bool(node, "dptf-enable");
276 apl->hdaudio_clk_gate_enable = ofnode_read_bool(node,
277 "hdaudio-clk-gate-enable");
278 apl->hdaudio_pwr_gate_enable = ofnode_read_bool(node,
279 "hdaudio-pwr-gate-enable");
280 apl->hdaudio_bios_config_lockdown = ofnode_read_bool(node,
281 "hdaudio-bios-config-lockdown");
282 apl->lpss_s0ix_enable = ofnode_read_bool(node, "lpss-s0ix-enable");
285 apl->usb2eye[1].per_port_pe_txi_set = 7;
286 apl->usb2eye[1].per_port_txi_set = 2;
291 static void apl_fsp_silicon_init_params_cb(struct apl_config *apl,
292 struct fsp_s_config *cfg)
296 for (port = 0; port < MAX_USB2_PORTS; port++) {
297 if (apl->usb2eye[port].per_port_tx_pe_half)
298 cfg->port_usb20_per_port_tx_pe_half[port] =
299 apl->usb2eye[port].per_port_tx_pe_half;
301 if (apl->usb2eye[port].per_port_pe_txi_set)
302 cfg->port_usb20_per_port_pe_txi_set[port] =
303 apl->usb2eye[port].per_port_pe_txi_set;
305 if (apl->usb2eye[port].per_port_txi_set)
306 cfg->port_usb20_per_port_txi_set[port] =
307 apl->usb2eye[port].per_port_txi_set;
309 if (apl->usb2eye[port].hs_skew_sel)
310 cfg->port_usb20_hs_skew_sel[port] =
311 apl->usb2eye[port].hs_skew_sel;
313 if (apl->usb2eye[port].usb_tx_emphasis_en)
314 cfg->port_usb20_i_usb_tx_emphasis_en[port] =
315 apl->usb2eye[port].usb_tx_emphasis_en;
317 if (apl->usb2eye[port].per_port_rxi_set)
318 cfg->port_usb20_per_port_rxi_set[port] =
319 apl->usb2eye[port].per_port_rxi_set;
321 if (apl->usb2eye[port].hs_npre_drv_sel)
322 cfg->port_usb20_hs_npre_drv_sel[port] =
323 apl->usb2eye[port].hs_npre_drv_sel;
327 int fsps_update_config(struct udevice *dev, ulong rom_offset,
328 struct fsps_upd *upd)
330 struct fsp_s_config *cfg = &upd->config;
331 struct apl_config *apl;
332 struct binman_entry vbt;
336 ret = binman_entry_find("intel-vbt", &vbt);
338 return log_msg_ret("Cannot find VBT", ret);
339 vbt.image_pos += rom_offset;
340 buf = malloc(vbt.size);
342 return log_msg_ret("Alloc VBT", -ENOMEM);
345 * Load VBT before devicetree-specific config. This only supports
346 * memory-mapped SPI at present.
348 bootstage_start(BOOTSTAGE_ID_ACCUM_MMAP_SPI, "mmap_spi");
349 memcpy(buf, (void *)vbt.image_pos, vbt.size);
350 bootstage_accum(BOOTSTAGE_ID_ACCUM_MMAP_SPI);
351 if (*(u32 *)buf != VBT_SIGNATURE)
352 return log_msg_ret("VBT signature", -EINVAL);
353 cfg->graphics_config_ptr = (ulong)buf;
355 apl = malloc(sizeof(*apl));
357 return log_msg_ret("config", -ENOMEM);
358 get_config(dev, apl);
361 cfg->enable_sata = 0;
362 cfg->pcie_root_port_en[2] = 0;
363 cfg->pcie_rp_hot_plug[2] = 0;
364 cfg->pcie_root_port_en[3] = 0;
365 cfg->pcie_rp_hot_plug[3] = 0;
366 cfg->pcie_root_port_en[4] = 0;
367 cfg->pcie_rp_hot_plug[4] = 0;
368 cfg->pcie_root_port_en[5] = 0;
369 cfg->pcie_rp_hot_plug[5] = 0;
370 cfg->pcie_root_port_en[1] = 0;
371 cfg->pcie_rp_hot_plug[1] = 0;
373 cfg->i2c6_enable = 0;
374 cfg->i2c7_enable = 0;
375 cfg->hsuart3_enable = 0;
376 cfg->spi1_enable = 0;
377 cfg->spi2_enable = 0;
378 cfg->sdio_enabled = 0;
380 memcpy(cfg->pcie_rp_clk_req_number, apl->pcie_rp_clkreq_pin,
381 sizeof(cfg->pcie_rp_clk_req_number));
383 memcpy(cfg->pcie_rp_hot_plug, apl->pcie_rp_hotplug_enable,
384 sizeof(cfg->pcie_rp_hot_plug));
386 switch (apl->serirq_mode) {
388 cfg->sirq_enable = 1;
391 case SERIRQ_CONTINUOUS:
392 cfg->sirq_enable = 1;
397 cfg->sirq_enable = 0;
401 if (apl->emmc_tx_cmd_cntl)
402 cfg->emmc_tx_cmd_cntl = apl->emmc_tx_cmd_cntl;
403 if (apl->emmc_tx_data_cntl1)
404 cfg->emmc_tx_data_cntl1 = apl->emmc_tx_data_cntl1;
405 if (apl->emmc_tx_data_cntl2)
406 cfg->emmc_tx_data_cntl2 = apl->emmc_tx_data_cntl2;
407 if (apl->emmc_rx_cmd_data_cntl1)
408 cfg->emmc_rx_cmd_data_cntl1 = apl->emmc_rx_cmd_data_cntl1;
409 if (apl->emmc_rx_strobe_cntl)
410 cfg->emmc_rx_strobe_cntl = apl->emmc_rx_strobe_cntl;
411 if (apl->emmc_rx_cmd_data_cntl2)
412 cfg->emmc_rx_cmd_data_cntl2 = apl->emmc_rx_cmd_data_cntl2;
413 if (apl->emmc_host_max_speed)
414 cfg->e_mmc_host_max_speed = apl->emmc_host_max_speed;
416 cfg->lpss_s0ix_enable = apl->lpss_s0ix_enable;
418 cfg->skip_mp_init = true;
420 /* Disable setting of EISS bit in FSP */
423 /* Disable FSP from locking access to the RTC NVRAM */
426 /* Enable Audio clk gate and power gate */
427 cfg->hd_audio_clk_gate = apl->hdaudio_clk_gate_enable;
428 cfg->hd_audio_pwr_gate = apl->hdaudio_pwr_gate_enable;
429 /* Bios config lockdown Audio clk and power gate */
430 cfg->bios_cfg_lock_down = apl->hdaudio_bios_config_lockdown;
431 apl_fsp_silicon_init_params_cb(apl, cfg);
434 cfg->vtd_enable = apl->enable_vtd;
439 static void p2sb_set_hide_bit(pci_dev_t dev, int hide)
441 pci_x86_clrset_config(dev, PCH_P2SB_E0 + 1, HIDE_BIT,
442 hide ? HIDE_BIT : 0, PCI_SIZE_8);
445 /* Configure package power limits */
446 static int set_power_limits(struct udevice *dev)
448 msr_t rapl_msr_reg, limit;
450 u32 tdp, min_power, max_power;
456 rapl_msr_reg = msr_read(MSR_PKG_POWER_SKU_UNIT);
457 power_unit = 1 << (rapl_msr_reg.lo & 0xf);
459 /* Get power defaults for this SKU */
460 rapl_msr_reg = msr_read(MSR_PKG_POWER_SKU);
461 tdp = rapl_msr_reg.lo & PKG_POWER_LIMIT_MASK;
462 pl2_val = rapl_msr_reg.hi & PKG_POWER_LIMIT_MASK;
463 min_power = (rapl_msr_reg.lo >> 16) & PKG_POWER_LIMIT_MASK;
464 max_power = rapl_msr_reg.hi & PKG_POWER_LIMIT_MASK;
466 if (min_power > 0 && tdp < min_power)
469 if (max_power > 0 && tdp > max_power)
472 ret = dev_read_u32_array(dev, "tdp-pl-override-mw", override_tdp,
473 ARRAY_SIZE(override_tdp));
475 return log_msg_ret("tdp-pl-override-mw", ret);
477 /* Set PL1 override value */
479 tdp = override_tdp[0] * power_unit / 1000;
481 /* Set PL2 override value */
483 pl2_val = override_tdp[1] * power_unit / 1000;
485 /* Set long term power limit to TDP */
486 limit.lo = tdp & PKG_POWER_LIMIT_MASK;
487 /* Set PL1 Pkg Power clamp bit */
488 limit.lo |= PKG_POWER_LIMIT_CLAMP;
490 limit.lo |= PKG_POWER_LIMIT_EN;
491 limit.lo |= (MB_POWER_LIMIT1_TIME_DEFAULT &
492 PKG_POWER_LIMIT_TIME_MASK) << PKG_POWER_LIMIT_TIME_SHIFT;
494 /* Set short term power limit PL2 */
495 limit.hi = pl2_val & PKG_POWER_LIMIT_MASK;
496 limit.hi |= PKG_POWER_LIMIT_EN;
498 /* Program package power limits in RAPL MSR */
499 msr_write(MSR_PKG_POWER_LIMIT, limit);
500 log_info("RAPL PL1 %d.%dW\n", tdp / power_unit,
501 100 * (tdp % power_unit) / power_unit);
502 log_info("RAPL PL2 %d.%dW\n", pl2_val / power_unit,
503 100 * (pl2_val % power_unit) / power_unit);
506 * Sett RAPL MMIO register for Power limits. RAPL driver is using MSR
507 * instead of MMIO, so disable LIMIT_EN bit for MMIO
509 writel(limit.lo & ~PKG_POWER_LIMIT_EN, MCHBAR_REG(MCHBAR_RAPL_PPL));
510 writel(limit.hi & ~PKG_POWER_LIMIT_EN, MCHBAR_REG(MCHBAR_RAPL_PPL + 4));
515 int p2sb_unhide(void)
517 pci_dev_t dev = PCI_BDF(0, 0xd, 0);
520 p2sb_set_hide_bit(dev, 0);
522 pci_x86_read_config(dev, PCI_VENDOR_ID, &val, PCI_SIZE_16);
524 if (val != PCI_VENDOR_ID_INTEL)
525 return log_msg_ret("p2sb unhide", -EIO);
530 /* Overwrites the SCI IRQ if another IRQ number is given by device tree */
531 static void set_sci_irq(void)
533 /* Skip this for now */
536 int arch_fsps_preinit(void)
538 struct udevice *itss;
541 ret = irq_first_device_type(X86_IRQT_ITSS, &itss);
543 return log_msg_ret("no itss", ret);
545 * Snapshot the current GPIO IRQ polarities. FSP is setting a default
546 * policy that doesn't honour boards' requirements
548 irq_snapshot_polarities(itss);
551 * Clear the GPI interrupt status and enable registers. These
552 * registers do not get reset to default state when booting from S5.
554 ret = pinctrl_gpi_clear_int_cfg();
556 return log_msg_ret("gpi_clear", ret);
561 int arch_fsp_init_r(void)
563 #ifdef CONFIG_HAVE_ACPI_RESUME
564 bool s3wake = gd->arch.prev_sleep_state == ACPI_S3;
568 struct udevice *dev, *itss;
574 * This must be called before any devices are probed. Put any probing
575 * into arch_fsps_preinit() above.
577 * We don't use CONFIG_APL_BOOT_FROM_FAST_SPI_FLASH here since it will
578 * force PCI to be probed.
580 ret = fsp_silicon_init(s3wake, false);
584 ret = irq_first_device_type(X86_IRQT_ITSS, &itss);
586 return log_msg_ret("no itss", ret);
587 /* Restore GPIO IRQ polarities back to previous settings */
588 irq_restore_polarities(itss);
593 return log_msg_ret("unhide p2sb", ret);
595 /* Set RAPL MSR for Package power limits*/
596 ret = uclass_first_device_err(UCLASS_NORTHBRIDGE, &dev);
598 return log_msg_ret("Cannot get northbridge", ret);
599 set_power_limits(dev);
602 * FSP-S routes SCI to IRQ 9. With the help of this function you can
603 * select another IRQ for SCI.