diff options
Diffstat (limited to 'src/mainboard/google/nyan')
| -rw-r--r-- | src/mainboard/google/nyan/Kconfig | 24 | ||||
| -rw-r--r-- | src/mainboard/google/nyan/Makefile.inc | 5 | ||||
| -rw-r--r-- | src/mainboard/google/nyan/bootblock.c | 80 | ||||
| -rw-r--r-- | src/mainboard/google/nyan/chromeos.c | 99 | ||||
| -rw-r--r-- | src/mainboard/google/nyan/devicetree.cb | 48 | ||||
| -rw-r--r-- | src/mainboard/google/nyan/mainboard.c | 36 | ||||
| -rw-r--r-- | src/mainboard/google/nyan/pmic.c | 78 | ||||
| -rw-r--r-- | src/mainboard/google/nyan/pmic.h | 25 | ||||
| -rw-r--r-- | src/mainboard/google/nyan/romstage.c | 23 |
9 files changed, 417 insertions, 1 deletions
diff --git a/src/mainboard/google/nyan/Kconfig b/src/mainboard/google/nyan/Kconfig index 5ac58d315f..652cef12e5 100644 --- a/src/mainboard/google/nyan/Kconfig +++ b/src/mainboard/google/nyan/Kconfig @@ -22,6 +22,10 @@ if BOARD_GOOGLE_NYAN config BOARD_SPECIFIC_OPTIONS # dummy def_bool y select SOC_NVIDIA_TEGRA124 + select MAINBOARD_HAS_CHROMEOS + select EC_GOOGLE_CHROMEEC + select EC_GOOGLE_CHROMEEC_SPI + select MAINBOARD_HAS_BOOTBLOCK_INIT select BOARD_ROMSIZE_KB_1024 config MAINBOARD_DIR @@ -54,4 +58,24 @@ config BCT_CFG_EMMC endchoice +config BOOT_MEDIA_SPI_BUS + int "SPI bus with boot media ROM" + range 1 6 + depends on BCT_CFG_SPI + default 4 + help + Which SPI bus the boot media is connected to. + +config BOOT_MEDIA_SPI_CHIP_SELECT + int "Chip select for SPI boot media" + range 0 3 + depends on BCT_CFG_SPI + default 0 + help + Which chip select to use for boot media. + +config EC_GOOGLE_CHROMEEC_SPI_BUS + hex + default 1 + endif # BOARD_GOOGLE_NYAN diff --git a/src/mainboard/google/nyan/Makefile.inc b/src/mainboard/google/nyan/Makefile.inc index 3cf7dd249c..49ccf39ac7 100644 --- a/src/mainboard/google/nyan/Makefile.inc +++ b/src/mainboard/google/nyan/Makefile.inc @@ -27,6 +27,11 @@ $(obj)/generated/bct.cfg: subdirs-y += bct +bootblock-y += bootblock.c +bootblock-y += pmic.c + romstage-y += romstage.c +romstage-$(CONFIG_CHROMEOS) += chromeos.c ramstage-y += mainboard.c +ramstage-$(CONFIG_CHROMEOS) += chromeos.c diff --git a/src/mainboard/google/nyan/bootblock.c b/src/mainboard/google/nyan/bootblock.c new file mode 100644 index 0000000000..49133ca55c --- /dev/null +++ b/src/mainboard/google/nyan/bootblock.c @@ -0,0 +1,80 @@ +/* + * 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 <bootblock_common.h> +#include <console/console.h> +#include <device/i2c.h> +#include <soc/clock.h> +#include <soc/nvidia/tegra/i2c.h> +#include <soc/nvidia/tegra124/pinmux.h> +#include <soc/nvidia/tegra124/spi.h> /* FIXME: move back to soc code? */ + +#include "pmic.h" + +void bootblock_mainboard_init(void) +{ + clock_config(); + + // I2C1 clock. + pinmux_set_config(PINMUX_GEN1_I2C_SCL_INDEX, + PINMUX_GEN1_I2C_SCL_FUNC_I2C1 | PINMUX_INPUT_ENABLE); + // I2C1 data. + pinmux_set_config(PINMUX_GEN1_I2C_SDA_INDEX, + PINMUX_GEN1_I2C_SDA_FUNC_I2C1 | PINMUX_INPUT_ENABLE); + // I2C2 clock. + pinmux_set_config(PINMUX_GEN2_I2C_SCL_INDEX, + PINMUX_GEN2_I2C_SCL_FUNC_I2C2 | PINMUX_INPUT_ENABLE); + // I2C2 data. + pinmux_set_config(PINMUX_GEN2_I2C_SDA_INDEX, + PINMUX_GEN2_I2C_SDA_FUNC_I2C2 | PINMUX_INPUT_ENABLE); + // I2C3 (cam) clock. + pinmux_set_config(PINMUX_CAM_I2C_SCL_INDEX, + PINMUX_CAM_I2C_SCL_FUNC_I2C3 | PINMUX_INPUT_ENABLE); + // I2C3 (cam) data. + pinmux_set_config(PINMUX_CAM_I2C_SDA_INDEX, + PINMUX_CAM_I2C_SDA_FUNC_I2C3 | PINMUX_INPUT_ENABLE); + // I2C5 (PMU) clock. + pinmux_set_config(PINMUX_PWR_I2C_SCL_INDEX, + PINMUX_PWR_I2C_SCL_FUNC_I2CPMU | PINMUX_INPUT_ENABLE); + // I2C5 (PMU) data. + pinmux_set_config(PINMUX_PWR_I2C_SDA_INDEX, + PINMUX_PWR_I2C_SDA_FUNC_I2CPMU | PINMUX_INPUT_ENABLE); + + i2c_init(0); + i2c_init(1); + i2c_init(2); + i2c_init(4); + + pmic_init(4); + + /* SPI4 data out (MOSI) */ + pinmux_set_config(PINMUX_SDMMC1_CMD_INDEX, + PINMUX_SDMMC1_CMD_FUNC_SPI4 | PINMUX_INPUT_ENABLE); + /* SPI4 data in (MISO) */ + pinmux_set_config(PINMUX_SDMMC1_DAT1_INDEX, + PINMUX_SDMMC1_DAT1_FUNC_SPI4 | PINMUX_INPUT_ENABLE); + /* SPI4 clock */ + pinmux_set_config(PINMUX_SDMMC1_DAT2_INDEX, + PINMUX_SDMMC1_DAT2_FUNC_SPI4 | PINMUX_INPUT_ENABLE); + /* SPI4 chip select 0 */ + pinmux_set_config(PINMUX_SDMMC1_DAT3_INDEX, + PINMUX_SDMMC1_DAT3_FUNC_SPI4 | PINMUX_INPUT_ENABLE); +// spi_init(); + tegra_spi_init(4); +} diff --git a/src/mainboard/google/nyan/chromeos.c b/src/mainboard/google/nyan/chromeos.c new file mode 100644 index 0000000000..5b8b9c0538 --- /dev/null +++ b/src/mainboard/google/nyan/chromeos.c @@ -0,0 +1,99 @@ +/* + * 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 <boot/coreboot_tables.h> +#include <console/console.h> +#include <ec/google/chromeec/ec.h> +#include <ec/google/chromeec/ec_commands.h> +#include <string.h> +#include <vendorcode/google/chromeos/chromeos.h> +#include <bootmode.h> +#include <soc/nvidia/tegra124/gpio.h> + +void fill_lb_gpios(struct lb_gpios *gpios) +{ + int count = 0; + + /* Write Protect: active low */ + gpios->gpios[count].port = GPIO_R1_INDEX; + gpios->gpios[count].polarity = ACTIVE_LOW; + gpios->gpios[count].value = gpio_get_in_value(GPIO_R1_INDEX); + strncpy((char *)gpios->gpios[count].name, "write protect", + GPIO_MAX_NAME_LENGTH); + count++; + + /* Recovery: active high */ + gpios->gpios[count].port = -1; + gpios->gpios[count].polarity = ACTIVE_HIGH; + gpios->gpios[count].value = get_recovery_mode_switch(); + strncpy((char *)gpios->gpios[count].name, "recovery", + GPIO_MAX_NAME_LENGTH); + count++; + + /* Lid: active high */ + gpios->gpios[count].port = GPIO_R4_INDEX; + gpios->gpios[count].polarity = ACTIVE_HIGH; + gpios->gpios[count].value = gpio_get_in_value(GPIO_R4_INDEX); + strncpy((char *)gpios->gpios[count].name, "lid", GPIO_MAX_NAME_LENGTH); + count++; + + /* Power: active low */ + gpios->gpios[count].port = GPIO_Q0_INDEX; + gpios->gpios[count].polarity = ACTIVE_LOW; + gpios->gpios[count].value = gpio_get_in_value(GPIO_Q0_INDEX); + strncpy((char *)gpios->gpios[count].name, "power", + GPIO_MAX_NAME_LENGTH); + count++; + + /* Developer: virtual GPIO active high */ + gpios->gpios[count].port = -1; + gpios->gpios[count].polarity = ACTIVE_HIGH; + gpios->gpios[count].value = get_developer_mode_switch(); + strncpy((char *)gpios->gpios[count].name, "developer", + GPIO_MAX_NAME_LENGTH); + count++; + + gpios->size = sizeof(*gpios) + (count * sizeof(struct lb_gpio)); + gpios->count = count; + + printk(BIOS_ERR, "Added %d GPIOS size %d\n", count, gpios->size); +} + +int get_developer_mode_switch(void) +{ + return gpio_get_in_value(GPIO_Q6_INDEX); +} + +int get_recovery_mode_switch(void) +{ + uint32_t ec_events; + + /* The GPIO is active low. */ + if (!gpio_get_in_value(GPIO_Q7_INDEX)) // RECMODE_GPIO + return 1; + + ec_events = google_chromeec_get_events_b(); + return !!(ec_events & + EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY)); +} + +int get_write_protect_state(void) +{ + return !gpio_get_in_value(GPIO_R1_INDEX); +} diff --git a/src/mainboard/google/nyan/devicetree.cb b/src/mainboard/google/nyan/devicetree.cb index 392a5ae0c1..623c5a196c 100644 --- a/src/mainboard/google/nyan/devicetree.cb +++ b/src/mainboard/google/nyan/devicetree.cb @@ -19,4 +19,52 @@ chip soc/nvidia/tegra124 device cpu_cluster 0 on end +# N.B. We ae not using the device tree in an effective way. +# We need to change this in future such that the on-soc +# devices are 'chips', which will allow us to go at them +# in parallel. This is even easier on the ARM SOCs since there +# are no single-access resources such as the infamous +# cf8/cfc registers found on PCs. + register "display_controller" = "TEGRA_ARM_DISPLAYA" + register "xres" = "2560" + register "yres" = "1700" + register "framebuffer_bits_per_pixel" = "24" + register "cache_policy" = "DCACHE_WRITETHROUGH" + + # With some help from the mainbaord designer + register "backlight_en_gpio" = "GPIO(H2)" + register "lvds_shutdown_gpio" = "0" + register "backlight_vdd_gpio" = "GPIO(P2)" + register "panel_vdd_gpio" = "0" + register "pwm" = "GPIO(H1)" + +# taken from u-boot; these look wrong however. + register "vdd_delay" = "400" + register "vdd_data_delay" = "4" + register "data_backlight_delay" = "203" + register "backlight_pwm_delay" = "17" + register "pwm_backlight_en_delay" = "15" + +# How to compute these: xrandr --verbose will give you this: +#Detailed mode: Clock 285.250 MHz, 272 mm x 181 mm +# 2560 2608 2640 2720 hborder 0 +# 1700 1703 1713 1749 vborder 0 +#Then you can compute your values: +#H front porch = 2608 - 2560 = 48 +#H sync = 2640 - 2608 = 32 +#H back porch = 2720 - 2640 = 80 +#V front porch = 1703 - 1700 = 3 +#V sync = 1713 - 1703 = 10 +#V back porch = 1749 - 1713 = 36 +#href_to_sync and vref_to_sync are from the vendor + + register "href_to_sync" = "11" + register "hfront_porch" = "48" + register "hsync_width" = "32" + register "hback_porch" = "80" + + register "vref_to_sync" = "1" + register "vfront_porch" = "3" + register "vsync_width" = "10" + register "vback_porch" = "36" end diff --git a/src/mainboard/google/nyan/mainboard.c b/src/mainboard/google/nyan/mainboard.c index 9e080214b0..c7258ff12d 100644 --- a/src/mainboard/google/nyan/mainboard.c +++ b/src/mainboard/google/nyan/mainboard.c @@ -19,10 +19,44 @@ #include <device/device.h> #include <boot/coreboot_tables.h> +#include <soc/nvidia/tegra124/gpio.h> + +static void setup_pinmux(void) +{ + // Write protect. + gpio_input_pullup(GPIO(R1)); + // Recovery mode. + gpio_input_pullup(GPIO(Q7)); + // Lid switch. + gpio_input_pullup(GPIO(R4)); + // Power switch. + gpio_input_pullup(GPIO(Q0)); + // Developer mode. + gpio_input_pullup(GPIO(Q6)); + // EC in RW. + gpio_input_pullup(GPIO(U4)); + + // SPI1 MOSI + pinmux_set_config(PINMUX_ULPI_CLK_INDEX, PINMUX_ULPI_CLK_FUNC_SPI1 | + PINMUX_PULL_UP | + PINMUX_INPUT_ENABLE); + // SPI1 MISO + pinmux_set_config(PINMUX_ULPI_DIR_INDEX, PINMUX_ULPI_DIR_FUNC_SPI1 | + PINMUX_PULL_UP | + PINMUX_INPUT_ENABLE); + // SPI1 SCLK + pinmux_set_config(PINMUX_ULPI_NXT_INDEX, PINMUX_ULPI_NXT_FUNC_SPI1 | + PINMUX_PULL_NONE | + PINMUX_INPUT_ENABLE); + // SPI1 CS0 + pinmux_set_config(PINMUX_ULPI_STP_INDEX, PINMUX_ULPI_STP_FUNC_SPI1 | + PINMUX_PULL_NONE | + PINMUX_INPUT_ENABLE); +} -/* this happens after cpu_init where exynos resources are set */ static void mainboard_init(device_t dev) { + setup_pinmux(); } static void mainboard_enable(device_t dev) diff --git a/src/mainboard/google/nyan/pmic.c b/src/mainboard/google/nyan/pmic.c new file mode 100644 index 0000000000..ab951ea3a3 --- /dev/null +++ b/src/mainboard/google/nyan/pmic.c @@ -0,0 +1,78 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved. + * + * 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 <delay.h> +#include <device/i2c.h> +#include <stdint.h> +#include <stdlib.h> + +#include "pmic.h" + +struct pmic_write +{ + uint8_t reg; // Register to write. + uint8_t val; // Value to write. +}; + +enum { + AS3722_I2C_ADDR = 0x40 +}; + +static struct pmic_write pmic_writes[] = +{ + /* Don't need to set up VDD_CORE - already done - by OTP */ + + /* First set VDD_CPU to 1.0V, then enable the VDD_CPU regulator. */ + { 0x00, 0x28 }, + + /* Don't write SDCONTROL - it's already 0x7F, i.e. all SDs enabled. */ + + /* First set VDD_GPU to 1.0V, then enable the VDD_GPU regulator. */ + { 0x06, 0x28 }, + + /* Don't write SDCONTROL - it's already 0x7F, i.e. all SDs enabled. */ + + /* First set VPP_FUSE to 1.2V, then enable the VPP_FUSE regulator. */ + { 0x12, 0x10 }, + + /* Don't write LDCONTROL - it's already 0xFF, i.e. all LDOs enabled. */ + + /* + * Bring up VDD_SDMMC via the AS3722 PMIC on the PWR I2C bus. + * First set it to bypass 3.3V straight thru, then enable the regulator + * + * NOTE: We do this early because doing it later seems to hose the CPU + * power rail/partition startup. Need to debug. + */ + { 0x16, 0x3f } + + /* Don't write LDCONTROL - it's already 0xFF, i.e. all LDOs enabled. */ +}; + +void pmic_init(unsigned bus) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(pmic_writes); i++) { + i2c_write(bus, AS3722_I2C_ADDR, pmic_writes[i].reg, 1, + &pmic_writes[i].val, 1); + udelay(10 * 1000); + } +} diff --git a/src/mainboard/google/nyan/pmic.h b/src/mainboard/google/nyan/pmic.h new file mode 100644 index 0000000000..78c9f0d7f2 --- /dev/null +++ b/src/mainboard/google/nyan/pmic.h @@ -0,0 +1,25 @@ +/* + * 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 + */ + +#ifndef __MAINBOARD_GOOGLE_NYAN_PMIC_H__ +#define __MAINBOARD_GOOGLE_NYAN_PMIC_H__ + +void pmic_init(unsigned bus); + +#endif /* __MAINBOARD_GOOGLE_NYAN_PMIC_H__ */ diff --git a/src/mainboard/google/nyan/romstage.c b/src/mainboard/google/nyan/romstage.c index c52fbd2670..5a66ddeb42 100644 --- a/src/mainboard/google/nyan/romstage.c +++ b/src/mainboard/google/nyan/romstage.c @@ -18,12 +18,35 @@ */ #include <arch/stages.h> +#include <device/device.h> #include <cbfs.h> +#include <cbmem.h> #include <console/console.h> +#include "soc/nvidia/tegra124/chip.h" +#include <soc/display.h> void main(void) { void *entry; + const struct device *soc; + const struct soc_nvidia_tegra124_config *config; + + /* for quality of the user interface, it's important to get + * the video going ASAP. Because there are long delays in some + * of the powerup steps, we do some very early setup here in + * romstage. We don't do this in the bootblock because video + * setup is finicky and subject to change; hence, we do it as + * early as we can in the RW stage, but never in the RO stage. + */ + + soc = dev_find_slot(DEVICE_PATH_CPU_CLUSTER, 0); + printk(BIOS_SPEW, "s%s: soc is %p\n", __func__, soc); + if (soc && soc->chip_info){ + config = soc->chip_info; + setup_display((struct soc_nvidia_tegra124_config *)config); + } + + cbmem_initialize_empty(); entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA, "fallback/coreboot_ram"); stage_exit(entry); |