| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright 2013 Google Inc. |
| * |
| * 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. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <arch/io.h> |
| #include <console/console.h> |
| #include <delay.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <reg_script.h> |
| #include <stdlib.h> |
| |
| #include <baytrail/gfx.h> |
| #include <baytrail/iosf.h> |
| #include <baytrail/pci_devs.h> |
| #include <baytrail/ramstage.h> |
| |
| #include "chip.h" |
| |
| #define GFX_TIMEOUT 100000 /* 100ms */ |
| |
| /* |
| * Lock Power Context Base Register to point to a 24KB block |
| * of memory in GSM. Power context save data is stored here. |
| */ |
| static void gfx_lock_pcbase(device_t dev) |
| { |
| struct resource *res = find_resource(dev, PCI_BASE_ADDRESS_0); |
| const u16 gms_size_map[17] = { 0,32,64,96,128,160,192,224,256, |
| 288,320,352,384,416,448,480,512 }; |
| u32 pcsize = 24 << 10; /* 24KB */ |
| u32 wopcmsz = 0x100000; /* PAVP offset */ |
| u32 gms, gmsize, pcbase; |
| |
| gms = pci_read_config32(dev, GGC) & GGC_GSM_SIZE_MASK; |
| gms >>= 3; |
| if (gms > ARRAY_SIZE(gms_size_map)) |
| return; |
| gmsize = gms_size_map[gms]; |
| |
| /* PcBase = BDSM + GMS Size - WOPCMSZ - PowerContextSize */ |
| pcbase = pci_read_config32(dev, GSM_BASE) & 0xfff00000; |
| pcbase += (gmsize-1) * wopcmsz - pcsize; |
| pcbase |= 1; /* Lock */ |
| |
| write32((u32 *)(uintptr_t)(res->base + 0x182120), pcbase); |
| } |
| |
| static const struct reg_script gfx_init_script[] = { |
| /* Allow-Wake render/media wells */ |
| REG_RES_RMW32(PCI_BASE_ADDRESS_0, 0x130090, ~1, 1), |
| REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x130094, 1, 1, GFX_TIMEOUT), |
| /* Render Force-Wake */ |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x1300b0, 0x80008000), |
| REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x1300b4, 0x8000, 0x8000, |
| GFX_TIMEOUT), |
| /* Media Force-Wake */ |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x1300b8, 0x80008000), |
| REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x1300bc, 0x8000, 0x8000, |
| GFX_TIMEOUT), |
| /* Workaround - X0:261954/A0:261955 */ |
| REG_RES_RMW32(PCI_BASE_ADDRESS_0, 0x182060, ~0xf, 1), |
| |
| /* |
| * PowerMeter Weights |
| */ |
| |
| /* SET1 */ |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA800, 0x00000000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA804, 0x00000000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA808, 0x0000ff0A), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA80C, 0x1D000000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA810, 0xAC004900), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA814, 0x000F0000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA818, 0x5A000000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA81C, 0x2600001F), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA820, 0x00090000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA824, 0x2000ff00), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA828, 0xff090016), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA82C, 0x00000000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA830, 0x00000100), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA834, 0x00A00F51), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA838, 0x000B0000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA83C, 0xcb7D3307), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA840, 0x003C0000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA844, 0xFFFF0000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA848, 0x00220000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA84c, 0x43000000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA850, 0x00000800), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA854, 0x00000F00), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA858, 0x00000021), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA85c, 0x00000000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA860, 0x00190000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xAA80, 0x00FF00FF), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xAA84, 0x00000000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x1300A4, 0x00000000), |
| /* SET2 */ |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA900, 0x00000000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA904, 0x00000000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA908, 0x00000000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa90c, 0x1D000000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa910, 0xAC005000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa914, 0x000F0000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa918, 0x5A000000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa91c, 0x2600001F), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa920, 0x00090000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa924, 0x2000ff00), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa928, 0xff090016), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa92c, 0x00000000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa930, 0x00000100), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa934, 0x00A00F51), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa938, 0x000B0000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA93C, 0xcb7D3307), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA940, 0x003C0000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA944, 0xFFFF0000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA948, 0x00220000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA94C, 0x43000000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA950, 0x00000800), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA954, 0x00000000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA960, 0x00000000), |
| /* SET3 */ |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xaa3c, 0x00000000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xaa54, 0x00000000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xaa60, 0x00000000), |
| /* Enable PowerMeter Counters */ |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA248, 0x00000058), |
| |
| /* Program PUNIT_GPU_EC_VIRUS based on DPTF SDP */ |
| /* SDP Profile 4 == 0x11940, others 0xcf08 */ |
| REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_GPU_EC_VIRUS, 0xcf08), |
| |
| /* GfxPause */ |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa000, 0x00071388), |
| |
| /* Dynamic EU Control Settings */ |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa080, 0x00000004), |
| |
| /* Lock ECO Bit Settings */ |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa180, 0x80000000), |
| |
| /* DOP Clock Gating */ |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9424, 0x00000001), |
| |
| /* MBCunit will send the VCR (Fuse) writes as NP-W */ |
| REG_RES_RMW32(PCI_BASE_ADDRESS_0, 0x907c, 0xfffeffff, 0x00010000), |
| |
| /* |
| * RC6 Settings |
| */ |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA090, 0x00000000), |
| /* RC1e - RC6/6p - RC6pp Wake Rate Limits */ |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA09C, 0x00280000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA0A8, 0x0001E848), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA0AC, 0x00000019), |
| /* RC Sleep / RCx Thresholds */ |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA0B0, 0x00000000), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA0B8, 0x00000557), |
| |
| /* |
| * Turbo Settings |
| */ |
| |
| /* Render/Video/Blitter Idle Max Count */ |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x2054, 0x0000000A), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x12054, 0x0000000A), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x22054, 0x0000000A), |
| /* RP Down Timeout */ |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA010, 0x000F4240), |
| |
| /* |
| * Turbo Control Settings |
| */ |
| |
| /* RP Up/Down Threshold */ |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA02C, 0x0000E8E8), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA030, 0x0003BD08), |
| /* RP Up/Down EI */ |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA068, 0x000101D0), |
| REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA06C, 0x00055730), |
| |
| /* RP Idle Hysteresis */ |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa070, 0x0000000a), |
| |
| /* HW RC6 Control Settings */ |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa090, 0x11000000), |
| |
| /* RP Control */ |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa024, 0x00000592), |
| |
| /* Enable PM Interrupts */ |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x44024, 0x03000000), |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x4402c, 0x03000076), |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa168, 0x0000007e), |
| |
| /* Aggressive Clock Gating */ |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9400, 0), |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9404, 0), |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9408, 0), |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x940c, 0), |
| |
| /* Enable Gfx Turbo. */ |
| REG_IOSF_RMW(IOSF_PORT_PMC, SB_BIOS_CONFIG, |
| ~SB_BIOS_CONFIG_GFX_TURBO_DIS, 0), |
| REG_SCRIPT_END |
| }; |
| |
| static const struct reg_script gpu_pre_vbios_script[] = { |
| /* Make sure GFX is bus master with MMIO access */ |
| REG_PCI_OR32(PCI_COMMAND, PCI_COMMAND_MASTER|PCI_COMMAND_MEMORY), |
| /* Display */ |
| REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PWRGT_CONTROL, 0xc0), |
| REG_IOSF_POLL(IOSF_PORT_PMC, PUNIT_PWRGT_STATUS, 0xc0, 0xc0, |
| GFX_TIMEOUT), |
| /* Tx/Rx Lanes */ |
| REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PWRGT_CONTROL, 0xfff0c0), |
| REG_IOSF_POLL(IOSF_PORT_PMC, PUNIT_PWRGT_STATUS, 0xfff0c0, 0xfff0c0, |
| GFX_TIMEOUT), |
| /* Common Lane */ |
| REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PWRGT_CONTROL, 0xfffcc0), |
| REG_IOSF_POLL(IOSF_PORT_PMC, PUNIT_PWRGT_STATUS, 0xfffcc0, 0xfffcc0, |
| GFX_TIMEOUT), |
| /* Ungating Tx only */ |
| REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PWRGT_CONTROL, 0xf00cc0), |
| REG_IOSF_POLL(IOSF_PORT_PMC, PUNIT_PWRGT_STATUS, 0xfffcc0, 0xf00cc0, |
| GFX_TIMEOUT), |
| /* Ungating Common Lane only */ |
| REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PWRGT_CONTROL, 0xf000c0), |
| REG_IOSF_POLL(IOSF_PORT_PMC, PUNIT_PWRGT_STATUS, 0xffffc0, 0xf000c0, |
| GFX_TIMEOUT), |
| /* Ungating Display */ |
| REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PWRGT_CONTROL, 0xf00000), |
| REG_IOSF_POLL(IOSF_PORT_PMC, PUNIT_PWRGT_STATUS, 0xfffff0, 0xf00000, |
| GFX_TIMEOUT), |
| REG_SCRIPT_END |
| }; |
| |
| static const struct reg_script gfx_post_vbios_script[] = { |
| /* Deassert Render Force-Wake */ |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x1300b0, 0x80000000), |
| REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x1300b4, 0x8000, 0, GFX_TIMEOUT), |
| /* Deassert Media Force-Wake */ |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x1300b8, 0x80000000), |
| REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x1300bc, 0x8000, 0, GFX_TIMEOUT), |
| /* Set Lock bits */ |
| REG_PCI_RMW32(GGC, 0xffffffff, 1), |
| REG_PCI_RMW32(GSM_BASE, 0xffffffff, 1), |
| REG_PCI_RMW32(GTT_BASE, 0xffffffff, 1), |
| REG_SCRIPT_END |
| }; |
| |
| static inline void gfx_run_script(device_t dev, const struct reg_script *ops) |
| { |
| reg_script_run_on_dev(dev, ops); |
| } |
| |
| static void gfx_pre_vbios_init(device_t dev) |
| { |
| printk(BIOS_INFO, "GFX: Pre VBIOS Init\n"); |
| gfx_run_script(dev, gpu_pre_vbios_script); |
| } |
| |
| static void gfx_pm_init(device_t dev) |
| { |
| printk(BIOS_INFO, "GFX: Power Management Init\n"); |
| gfx_run_script(dev, gfx_init_script); |
| |
| /* Lock power context base */ |
| gfx_lock_pcbase(dev); |
| } |
| |
| static void gfx_post_vbios_init(device_t dev) |
| { |
| printk(BIOS_INFO, "GFX: Post VBIOS Init\n"); |
| gfx_run_script(dev, gfx_post_vbios_script); |
| } |
| |
| static void set_backlight_pwm(device_t dev, uint32_t bklt_reg, int req_hz) |
| { |
| int divider; |
| struct resource *res; |
| |
| res = find_resource(dev, PCI_BASE_ADDRESS_0); |
| |
| if (res == NULL) |
| return; |
| |
| /* Default to 200 Hz if nothing is set. */ |
| if (req_hz == 0) |
| req_hz = 200; |
| |
| /* Base clock is 25MHz */ |
| divider = 25 * 1000 * 1000 / (16 * req_hz); |
| |
| /* Do not set duty cycle (lower 16 bits). Just set the divider. */ |
| write32((u32 *)(uintptr_t)(res->base + bklt_reg), divider << 16); |
| } |
| |
| static void gfx_panel_setup(device_t dev) |
| { |
| struct soc_intel_baytrail_config *config = dev->chip_info; |
| struct reg_script gfx_pipea_init[] = { |
| /* CONTROL */ |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, PIPEA_REG(PP_CONTROL), |
| PP_CONTROL_UNLOCK | PP_CONTROL_EDP_FORCE_VDD), |
| /* POWER ON */ |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, PIPEA_REG(PP_ON_DELAYS), |
| (config->gpu_pipea_port_select << 30 | |
| config->gpu_pipea_power_on_delay << 16 | |
| config->gpu_pipea_light_on_delay)), |
| /* POWER OFF */ |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, PIPEA_REG(PP_OFF_DELAYS), |
| (config->gpu_pipea_power_off_delay << 16 | |
| config->gpu_pipea_light_off_delay)), |
| /* DIVISOR */ |
| REG_RES_RMW32(PCI_BASE_ADDRESS_0, PIPEA_REG(PP_DIVISOR), |
| ~0x1f, config->gpu_pipea_power_cycle_delay), |
| REG_SCRIPT_END |
| }; |
| struct reg_script gfx_pipeb_init[] = { |
| /* CONTROL */ |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, PIPEB_REG(PP_CONTROL), |
| PP_CONTROL_UNLOCK | PP_CONTROL_EDP_FORCE_VDD), |
| /* POWER ON */ |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, PIPEB_REG(PP_ON_DELAYS), |
| (config->gpu_pipeb_port_select << 30 | |
| config->gpu_pipeb_power_on_delay << 16 | |
| config->gpu_pipeb_light_on_delay)), |
| /* POWER OFF */ |
| REG_RES_WRITE32(PCI_BASE_ADDRESS_0, PIPEB_REG(PP_OFF_DELAYS), |
| (config->gpu_pipeb_power_off_delay << 16 | |
| config->gpu_pipeb_light_off_delay)), |
| /* DIVISOR */ |
| REG_RES_RMW32(PCI_BASE_ADDRESS_0, PIPEB_REG(PP_DIVISOR), |
| ~0x1f, config->gpu_pipeb_power_cycle_delay), |
| REG_SCRIPT_END |
| }; |
| |
| if (config->gpu_pipea_port_select) { |
| printk(BIOS_INFO, "GFX: Initialize PIPEA\n"); |
| reg_script_run_on_dev(dev, gfx_pipea_init); |
| set_backlight_pwm(dev, PIPEA_REG(BACKLIGHT_CTL), |
| config->gpu_pipea_pwm_freq_hz); |
| } |
| |
| if (config->gpu_pipeb_port_select) { |
| printk(BIOS_INFO, "GFX: Initialize PIPEB\n"); |
| reg_script_run_on_dev(dev, gfx_pipeb_init); |
| set_backlight_pwm(dev, PIPEB_REG(BACKLIGHT_CTL), |
| config->gpu_pipeb_pwm_freq_hz); |
| } |
| } |
| |
| static void gfx_init(device_t dev) |
| { |
| /* Pre VBIOS Init */ |
| gfx_pre_vbios_init(dev); |
| |
| /* Power Management Init */ |
| gfx_pm_init(dev); |
| |
| gfx_panel_setup(dev); |
| |
| /* Run VBIOS */ |
| pci_dev_init(dev); |
| |
| /* Post VBIOS Init */ |
| gfx_post_vbios_init(dev); |
| } |
| |
| static struct device_operations gfx_device_ops = { |
| .read_resources = pci_dev_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .init = gfx_init, |
| .ops_pci = &soc_pci_ops, |
| }; |
| |
| static const struct pci_driver gfx_driver __pci_driver = { |
| .ops = &gfx_device_ops, |
| .vendor = PCI_VENDOR_ID_INTEL, |
| .device = GFX_DEVID, |
| }; |