| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright 2014 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/mmu.h> |
| #include <boardid.h> |
| #include <boot/coreboot_tables.h> |
| #include <cbmem.h> |
| #include <device/device.h> |
| #include <device/i2c.h> |
| #include <elog.h> |
| #include <memrange.h> |
| #include <soc/addressmap.h> |
| #include <soc/clk_rst.h> |
| #include <soc/clock.h> |
| #include <soc/funitcfg.h> |
| #include <soc/nvidia/tegra/i2c.h> |
| #include <soc/padconfig.h> |
| #include <soc/nvidia/tegra/dc.h> |
| #include <soc/display.h> |
| #include <vboot_struct.h> |
| #include <vendorcode/google/chromeos/vboot_handoff.h> |
| #include <vendorcode/google/chromeos/vboot2/misc.h> |
| #include <vendorcode/google/chromeos/chromeos.h> |
| #include <boardid.h> |
| #include <delay.h> |
| #include "gpio.h" |
| #include "pmic.h" |
| |
| static const struct pad_config mmcpads[] = { |
| /* MMC4 (eMMC) */ |
| PAD_CFG_SFIO(SDMMC4_CLK, PINMUX_INPUT_ENABLE|PINMUX_PULL_DOWN, SDMMC4), |
| PAD_CFG_SFIO(SDMMC4_CMD, PINMUX_INPUT_ENABLE|PINMUX_PULL_UP, SDMMC4), |
| PAD_CFG_SFIO(SDMMC4_DAT0, PINMUX_INPUT_ENABLE|PINMUX_PULL_UP, SDMMC4), |
| PAD_CFG_SFIO(SDMMC4_DAT1, PINMUX_INPUT_ENABLE|PINMUX_PULL_UP, SDMMC4), |
| PAD_CFG_SFIO(SDMMC4_DAT2, PINMUX_INPUT_ENABLE|PINMUX_PULL_UP, SDMMC4), |
| PAD_CFG_SFIO(SDMMC4_DAT3, PINMUX_INPUT_ENABLE|PINMUX_PULL_UP, SDMMC4), |
| PAD_CFG_SFIO(SDMMC4_DAT4, PINMUX_INPUT_ENABLE|PINMUX_PULL_UP, SDMMC4), |
| PAD_CFG_SFIO(SDMMC4_DAT5, PINMUX_INPUT_ENABLE|PINMUX_PULL_UP, SDMMC4), |
| PAD_CFG_SFIO(SDMMC4_DAT6, PINMUX_INPUT_ENABLE|PINMUX_PULL_UP, SDMMC4), |
| PAD_CFG_SFIO(SDMMC4_DAT7, PINMUX_INPUT_ENABLE|PINMUX_PULL_UP, SDMMC4), |
| }; |
| |
| static const struct pad_config audio_codec_pads[] = { |
| /* H1 is CODEC_RST_L and R2(ROW2) is AUDIO_ENABLE */ |
| PAD_CFG_GPIO_OUT1(GPIO_PH1, PINMUX_PULL_DOWN), |
| PAD_CFG_GPIO_OUT1(KB_ROW2, PINMUX_PULL_DOWN), |
| }; |
| |
| static const struct funit_cfg funits[] = { |
| /* MMC on SDMMC4 controller at 48MHz. */ |
| FUNIT_CFG(SDMMC4, PLLP, 48000, mmcpads, ARRAY_SIZE(mmcpads)), |
| /* I2C6 for audio, temp sensor, etc. Enable codec via GPIOs/muxes */ |
| FUNIT_CFG(I2C6, PLLP, 400, audio_codec_pads, ARRAY_SIZE(audio_codec_pads)), |
| FUNIT_CFG_USB(USBD), |
| }; |
| |
| /* HACK: For proto boards before proto3, we want to disable ec sw sync */ |
| static void fix_ec_sw_sync(void) |
| { |
| struct vboot_handoff *vh; |
| |
| if (board_id() >= BOARD_ID_PROTO_3) |
| return; |
| |
| vh = cbmem_find(CBMEM_ID_VBOOT_HANDOFF); |
| |
| if (vh == NULL) { |
| printk(BIOS_ERR, "No vboot handoff struct found\n"); |
| return; |
| } |
| |
| VbSharedDataHeader *vb_sd = (VbSharedDataHeader *)vh->shared_data; |
| vb_sd->flags &= ~VBSD_EC_SOFTWARE_SYNC; |
| } |
| |
| static const struct pad_config lcd_gpio_padcfgs[] = { |
| /* LCD_EN */ |
| PAD_CFG_GPIO_OUT0(GPIO_PH5, PINMUX_PULL_UP), |
| /* LCD_RST_L */ |
| PAD_CFG_GPIO_OUT0(GPIO_PH3, PINMUX_PULL_UP), |
| /* EN_VDD_LCD */ |
| PAD_CFG_GPIO_OUT0(GPIO_PBB6, PINMUX_PULL_NONE), |
| /* EN_VDD18_LCD */ |
| PAD_CFG_GPIO_OUT0(DVFS_PWM, PINMUX_PULL_DOWN), |
| }; |
| |
| static void configure_display_clocks(void) |
| { |
| u32 lclks = CLK_L_HOST1X | CLK_L_DISP1; /* dc */ |
| u32 hclks = CLK_H_MIPI_CAL | CLK_H_DSI; /* mipi phy, mipi-dsi a */ |
| u32 uclks = CLK_U_DSIB; /* mipi-dsi b */ |
| u32 xclks = CLK_X_CLK72MHZ; /* clk src of mipi_cal */ |
| |
| clock_enable_clear_reset(lclks, hclks, uclks, 0, 0, xclks); |
| |
| /* Give clocks time to stabilize. */ |
| udelay(IO_STABILIZATION_DELAY); |
| } |
| |
| static int enable_lcd_vdd(void) |
| { |
| uint8_t data; |
| |
| /* Set 1.20V to power AVDD_DSI_CSI */ |
| pmic_write_reg(I2CPWR_BUS, TI65913_LDO5_VOLTAGE, |
| VSEL_1200, 1); |
| pmic_write_reg(I2CPWR_BUS, TI65913_LDO5_CTRL, |
| TI65913_MODE_ACTIVE_ON, 1); |
| |
| /* |
| * Enable VDD_LCD |
| * |
| * Use different GPIO based on board id |
| */ |
| switch (board_id()) { |
| case BOARD_ID_PROTO_0: |
| /* Select PMIC GPIO_6's primary function */ |
| pmic_read_reg(I2CPWR_BUS, TI65913_PAD2, &data); |
| pmic_write_reg(I2CPWR_BUS, TI65913_PAD2, |
| PAD2_GPIO_6_PRIMARY(data), 0); |
| |
| /* Set PMIC_GPIO_6 as output */ |
| pmic_read_reg(I2CPWR_BUS, TI65913_GPIO_DATA_DIR, &data); |
| pmic_write_reg(I2CPWR_BUS, TI65913_GPIO_DATA_DIR, |
| TI65913_GPIO_6_OUTPUT, 0); |
| |
| /* Set PMIC_GPIO_6 output high */ |
| pmic_read_reg(I2CPWR_BUS, TI65913_GPIO_DATA_OUT, &data); |
| pmic_write_reg(I2CPWR_BUS, TI65913_GPIO_DATA_OUT, |
| TI65913_GPIO_6_HIGH, 1); |
| break; |
| case BOARD_ID_PROTO_1: |
| case BOARD_ID_PROTO_3: |
| case BOARD_ID_PROTO_4: |
| case BOARD_ID_EVT: |
| gpio_set(EN_VDD_LCD, 1); |
| break; |
| default: /* unknown board */ |
| return -1; |
| } |
| /* wait for 2ms */ |
| mdelay(2); |
| |
| /* Enable PP1800_LCDIO to panel */ |
| gpio_set(EN_VDD18_LCD, 1); |
| /* wait for 1ms */ |
| mdelay(1); |
| |
| /* Set panel EN and RST signals */ |
| gpio_set(LCD_EN, 1); /* enable */ |
| /* wait for min 10ms */ |
| mdelay(10); |
| gpio_set(LCD_RST_L, 1); /* clear reset */ |
| /* wait for min 3ms */ |
| mdelay(3); |
| |
| return 0; |
| } |
| |
| static const struct pad_config i2s1_pad[] = { |
| /* I2S1 */ |
| PAD_CFG_SFIO(DAP2_SCLK, PINMUX_INPUT_ENABLE, I2S1), |
| PAD_CFG_SFIO(DAP2_FS, PINMUX_INPUT_ENABLE, I2S1), |
| PAD_CFG_SFIO(DAP2_DOUT, PINMUX_INPUT_ENABLE, I2S1), |
| PAD_CFG_SFIO(DAP2_DIN, PINMUX_INPUT_ENABLE | PINMUX_TRISTATE, I2S1), |
| /* codec MCLK via EXTPERIPH1 */ |
| PAD_CFG_SFIO(DAP_MCLK1, PINMUX_PULL_NONE, EXTPERIPH1), |
| }; |
| |
| static const struct funit_cfg audio_funit[] = { |
| /* We need 1.5MHz for I2S1. So we use CLK_M */ |
| FUNIT_CFG(I2S1, CLK_M, 1500, i2s1_pad, ARRAY_SIZE(i2s1_pad)), |
| }; |
| |
| static int configure_display_blocks(void) |
| { |
| /* set and enable panel related vdd */ |
| if (enable_lcd_vdd()) |
| return -1; |
| |
| /* enable display related clocks */ |
| configure_display_clocks(); |
| |
| return 0; |
| } |
| |
| /* Audio init: clocks and enables/resets */ |
| static void setup_audio(void) |
| { |
| /* |
| * External peripheral 1: audio codec (RT5677) uses 12MHz CLK1 |
| * NOTE: We can't use a funits struct/call here because EXTPERIPH1/2/3 |
| * don't have BASE regs or CAR RST/ENA bits. Also, the mux setting for |
| * EXTPERIPH1/DAP_MCLK1 is rolled into the I2S1 padcfg. |
| */ |
| clock_configure_source(extperiph1, CLK_M, 12000); |
| |
| soc_configure_funits(audio_funit, ARRAY_SIZE(audio_funit)); |
| |
| clock_external_output(1); /* For external RT5677 audio codec. */ |
| |
| /* |
| * Confirmed by NVIDIA hardware team, we need to take ALL audio devices |
| * connected to AHUB (AUDIO, APBIF, I2S, DAM, AMX, ADX, SPDIF, AFC) out |
| * of reset and clock-enabled, otherwise reading AHUB devices (in our |
| * case, I2S/APBIF/AUDIO<XBAR>) will hang. |
| */ |
| clock_enable_audio(); |
| } |
| |
| #define AD4567_DEV 0x34 |
| #define PWR_CTL 0 |
| #define DAC_CTL 2 |
| #define SPWDN (1 << 0) |
| #define DAC_MUTE (1 << 6) |
| #define DAC_FS (0x7 << 0) |
| #define SR_32K_48KHZ 0x2 |
| |
| static void enable_ad4567_spkr_amp(void) |
| { |
| uint8_t reg_byte; |
| |
| if (board_id() >= BOARD_ID_PROTO_3) |
| return; |
| /* |
| * I2C6, device 0x34 is an AD4567 speaker amp on P0/P1. |
| * It needs to have a couple of regs tweaked to turn it on |
| * so it can provide audio output to the mono speaker on P0/P1. |
| */ |
| i2c_readb(I2C6_BUS, AD4567_DEV, PWR_CTL, ®_byte); |
| reg_byte &= ~SPWDN; // power up amp |
| i2c_writeb(I2C6_BUS, AD4567_DEV, PWR_CTL, reg_byte); |
| |
| /* The next 2 settings are defaults, but set them anyway */ |
| i2c_readb(I2C6_BUS, AD4567_DEV, DAC_CTL, ®_byte); |
| reg_byte &= ~DAC_MUTE; // unmute DAC (default) |
| reg_byte &= ~DAC_FS; // mask sample rate bits |
| reg_byte |= SR_32K_48KHZ; // set 32K-48KHz sample rate (default) |
| i2c_writeb(I2C6_BUS, AD4567_DEV, DAC_CTL, reg_byte); |
| } |
| |
| static void mainboard_init(device_t dev) |
| { |
| soc_configure_funits(funits, ARRAY_SIZE(funits)); |
| |
| /* I2C6 bus (audio, etc.) */ |
| soc_configure_i2c6pad(); |
| i2c_init(I2C6_BUS); |
| |
| setup_audio(); |
| /* Temp hack for P1 board: Enable speaker amp (powerup, etc.) */ |
| enable_ad4567_spkr_amp(); |
| |
| elog_init(); |
| elog_add_boot_reason(); |
| |
| fix_ec_sw_sync(); |
| |
| /* configure panel gpio pads */ |
| soc_configure_pads(lcd_gpio_padcfgs, ARRAY_SIZE(lcd_gpio_padcfgs)); |
| |
| /* if panel needs to bringup */ |
| if (!vboot_skip_display_init()) |
| configure_display_blocks(); |
| } |
| |
| void display_startup(device_t dev) |
| { |
| dsi_display_startup(dev); |
| } |
| |
| static void mainboard_enable(device_t dev) |
| { |
| dev->ops->init = &mainboard_init; |
| } |
| |
| struct chip_operations mainboard_ops = { |
| .name = "rush_ryu", |
| .enable_dev = mainboard_enable, |
| }; |