diff options
Diffstat (limited to 'src/mainboard/google/snow')
| -rw-r--r-- | src/mainboard/google/snow/Kconfig | 180 | ||||
| -rw-r--r-- | src/mainboard/google/snow/Makefile.inc | 36 | ||||
| -rw-r--r-- | src/mainboard/google/snow/devicetree.cb | 26 | ||||
| -rw-r--r-- | src/mainboard/google/snow/mainboard.c | 34 | ||||
| -rw-r--r-- | src/mainboard/google/snow/romstage.c | 32 | ||||
| -rw-r--r-- | src/mainboard/google/snow/smdk5250_spl.c | 78 |
6 files changed, 386 insertions, 0 deletions
diff --git a/src/mainboard/google/snow/Kconfig b/src/mainboard/google/snow/Kconfig new file mode 100644 index 0000000000..8c465b2b4d --- /dev/null +++ b/src/mainboard/google/snow/Kconfig @@ -0,0 +1,180 @@ +## +## This file is part of the coreboot project. +## +## Copyright (C) 2012 The ChromiumOS Authors. 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 +## + +if BOARD_GOOGLE_SNOW + +config BOARD_SPECIFIC_OPTIONS # dummy + def_bool y + select ARCH_ARMV7 + select CPU_SAMSUNG_EXYNOS5 + select HAVE_UART_MEMORY_MAPPED + select CONSOLE_SERIAL_NONSTANDARD_MEM # enable serial debugging +# select EC_GOOGLE_CHROMEEC + select BOARD_ROMSIZE_KB_4096 + select DRIVER_MAXIM_77686 +# select HAVE_ACPI_TABLES +# select MMCONF_SUPPORT +# select CHROMEOS + +config MAINBOARD_DIR + string + default google/snow + +config MAINBOARD_PART_NUMBER + string + default "SNOW" + +#config MMCONF_BASE_ADDRESS +# hex +# default 0xf0000000 + +#config IRQ_SLOT_COUNT +# int +# default 18 + +config MAX_CPUS + int + default 2 + +config MAINBOARD_VENDOR + string + default "Samsung" + +# SPL (second-phase loader) stuff +config SPL_TEXT_BASE + hex + default 0x02023400 + help + Location of SPL. Default location is within iRAM region. + +# FIXME: increased "SPL" size to get around build issues +#config SPL_MAX_SIZE +# hex "SPL executable max size" +# default 0x3800 +# help +# Max size of SPL. Default is 14KB +config SPL_MAX_SIZE + hex + default 0x8000 + help + Max size of SPL. Let's say 32KB for now... + +config DRAM_SIZE_MB + int + default 2048 + +config NR_DRAM_BANKS + int + default 1 + +choice + prompt "Serial Console UART" + default CONSOLE_SERIAL_UART3 + depends on CONSOLE_SERIAL_NONSTANDARD_MEM + +config CONSOLE_SERIAL_UART0 + bool "UART0" + help + Serial console on UART0 + +config CONSOLE_SERIAL_UART1 + bool "UART1" + help + Serial console on UART1 + +config CONSOLE_SERIAL_UART2 + bool "UART2" + help + Serial console on UART2 + +config CONSOLE_SERIAL_UART3 + bool "UART3" + help + Serial console on UART3 + +endchoice + +config CONSOLE_SERIAL_UART_ADDRESS + hex + depends on CONSOLE_SERIAL_NONSTANDARD_MEM + default 0x12c00000 if CONSOLE_SERIAL_UART0 + default 0x12c10000 if CONSOLE_SERIAL_UART1 + default 0x12c20000 if CONSOLE_SERIAL_UART2 + default 0x12c30000 if CONSOLE_SERIAL_UART3 + help + Map the UART names to the respective MMIO address. + +################################################################# +# stuff from smdk5250.h # +# FIXME: can we move some of these to exynos5250's Kconfig? # +################################################################# +config SYS_I2C_SPEED + int + default 100000 + +config SYS_I2C_SLAVE + hex + default 0x0 + +config I2C_MULTI_BUS + bool + default y + +#config HARD_I2C +# bool +# default y +#CMD_I2C +#I2C_EDID +#DRIVER_S3C24X0_I2C + +config VDD_ARM_MV + int + default 1300 #1.3V + +config VDD_INT_UV + int + default 1012500 # 1.0125v + +config VDD_MIF_MV + int + default 1000 # 1.0v + +config VDD_G3D_MV + int + default 1200 # 1.2v + +config VDD_LDO2_MV + int + default 1500 # 1.5v + +config VDD_LDO3_MV + int + default 1800 # 1.8v + +config VDD_LDO5_MV + int + default 1800 # 1.8v + +config VDD_LDO10_MV + int + default 1800 # 1.8v + +######### smdk5250.h ######## + +endif # BOARD_GOOGLE_SNOW diff --git a/src/mainboard/google/snow/Makefile.inc b/src/mainboard/google/snow/Makefile.inc new file mode 100644 index 0000000000..01488d0545 --- /dev/null +++ b/src/mainboard/google/snow/Makefile.inc @@ -0,0 +1,36 @@ +## +## This file is part of the coreboot project. +## +## Copyright (C) 2012 The ChromiumOS Authors. 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 +## + +#romstage-y += romstage.c + +# ramstage-y += ec.c + +# FIXME: smdk5250_spl and mainboard.c are a mess. In the long +# run we'll want to replace low-level code that calls mainboard code +# with mainboard code that calls low-level code with appropriate +# parameters. Grep around for spl_get_machine_params for examples. +romstage-y += smdk5250_spl.c +ramstage-y += smdk5250_spl.c +#ramstage-y += mainboard.c + +# romstage-$(CONFIG_CHROMEOS) += chromeos.c + +# FIXME: we should do something similar to x86 platforms for Snow SPDs + +SRC_ROOT = $(src)/mainboard/google/snow diff --git a/src/mainboard/google/snow/devicetree.cb b/src/mainboard/google/snow/devicetree.cb new file mode 100644 index 0000000000..f88835e12f --- /dev/null +++ b/src/mainboard/google/snow/devicetree.cb @@ -0,0 +1,26 @@ +## +## This file is part of the coreboot project. +## +## Copyright (C) 2012 The ChromiumOS Authors. 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 +## + +# FIXME: this is just a stub for now +chip cpu/samsung/exynos5250 + chip drivers/generic/generic # I2C0 controller + device i2c 6 on end # ? + device i2c 9 on end # ? + end +end diff --git a/src/mainboard/google/snow/mainboard.c b/src/mainboard/google/snow/mainboard.c new file mode 100644 index 0000000000..00b3e93f00 --- /dev/null +++ b/src/mainboard/google/snow/mainboard.c @@ -0,0 +1,34 @@ +/* + * Copyright (C) 2012 The ChromeOS Authors + * + * 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., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <device/device.h> + +// mainboard_enable is executed as first thing after +// enumerate_buses(). + +static void mainboard_enable(device_t dev) +{ + //dev->ops->init = mainboard_init; +} + +struct chip_operations mainboard_ops = { + .name = "Samsung/Google ARM ChromeBook", + .enable_dev = mainboard_enable, +}; + diff --git a/src/mainboard/google/snow/romstage.c b/src/mainboard/google/snow/romstage.c new file mode 100644 index 0000000000..29e4555326 --- /dev/null +++ b/src/mainboard/google/snow/romstage.c @@ -0,0 +1,32 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 The ChromiumOS Authors. 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 <types.h> +#include <system.h> +#include <cache.h> + +static void mmu_setup(void) +{ + dram_bank_mmu_setup(CONFIG_SYS_SDRAM_BASE, CONFIG_DRAM_SIZE_MB * 1024); +} + +void main(unsigned long bist) +{ + mmu_setup(); +} diff --git a/src/mainboard/google/snow/smdk5250_spl.c b/src/mainboard/google/snow/smdk5250_spl.c new file mode 100644 index 0000000000..204e41106b --- /dev/null +++ b/src/mainboard/google/snow/smdk5250_spl.c @@ -0,0 +1,78 @@ +/* + * Copyright (c) 2012 The Chromium OS Authors. + * + * 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., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <arch/gpio.h> +#include <cpu/samsung/exynos5-common/spl.h> +#include <cpu/samsung/exynos5250/gpio.h> + +#define SIGNATURE 0xdeadbeef + +/* Parameters of early board initialization in SPL */ +static struct spl_machine_param machine_param + __attribute__((section(".machine_param"))) = { + .signature = SIGNATURE, + .version = 1, + .params = "vmubfasirMw", + .size = sizeof(machine_param), + + .mem_iv_size = 0x1f, + .mem_type = DDR_MODE_DDR3, + + /* + * Set uboot_size to 0x100000 bytes. + * + * This is an overly conservative value chosen to accommodate all + * possible U-Boot image. You are advised to set this value to a + * smaller realistic size via scripts that modifies the .machine_param + * section of output U-Boot image. + */ + .uboot_size = 0x100000, + + .boot_source = BOOT_MODE_OM, + .frequency_mhz = 800, + .arm_freq_mhz = 1700, + .serial_base = 0x12c30000, + .i2c_base = 0x12c60000, + .board_rev_gpios = GPIO_D00 | (GPIO_D01 << 16), + .mem_manuf = MEM_MANUF_SAMSUNG, + .bad_wake_gpio = GPIO_Y10, +}; + +struct spl_machine_param *spl_get_machine_params(void) +{ + if (machine_param.signature != SIGNATURE) { + /* TODO: Call panic() here */ + while (1) + ; + } + + return &machine_param; +} + +int board_wakeup_permitted(void) +{ + struct spl_machine_param *param = spl_get_machine_params(); + const int gpio = param->bad_wake_gpio; + int is_bad_wake; + + /* We're a bad wakeup if the gpio was defined and was high */ + is_bad_wake = ((gpio != -1) && gpio_get_value(gpio)); + + return !is_bad_wake; +} |