diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/configs/exynos5-common.h | 2 | ||||
| -rw-r--r-- | include/configs/exynos5-dt-common.h | 3 | ||||
| -rw-r--r-- | include/configs/km/km_arm.h | 2 | ||||
| -rw-r--r-- | include/configs/mx6sxsabresd.h | 2 | ||||
| -rw-r--r-- | include/configs/odroid.h | 2 | ||||
| -rw-r--r-- | include/configs/peach-pi.h | 1 | ||||
| -rw-r--r-- | include/configs/peach-pit.h | 1 | ||||
| -rw-r--r-- | include/configs/rpi-common.h | 186 | ||||
| -rw-r--r-- | include/configs/rpi.h | 180 | ||||
| -rw-r--r-- | include/configs/rpi_2.h | 15 | ||||
| -rw-r--r-- | include/configs/sama5d3_xplained.h | 2 | ||||
| -rw-r--r-- | include/configs/sama5d3xek.h | 2 | ||||
| -rw-r--r-- | include/configs/sandbox.h | 4 | ||||
| -rw-r--r-- | include/configs/snow.h | 2 | ||||
| -rw-r--r-- | include/debug_uart.h | 139 | ||||
| -rw-r--r-- | include/dm/device-internal.h | 4 |
16 files changed, 352 insertions, 195 deletions
diff --git a/include/configs/exynos5-common.h b/include/configs/exynos5-common.h index 0ba39a23dd..3ab8d559bf 100644 --- a/include/configs/exynos5-common.h +++ b/include/configs/exynos5-common.h @@ -126,6 +126,8 @@ #define SPI_FLASH_UBOOT_POS (CONFIG_SEC_FW_SIZE + CONFIG_BL1_SIZE) /* I2C */ + +/* TODO(sjg@chromium.org): Move these two options to Kconfig */ #define CONFIG_DM_I2C #define CONFIG_DM_I2C_COMPAT #define CONFIG_CMD_I2C diff --git a/include/configs/exynos5-dt-common.h b/include/configs/exynos5-dt-common.h index 9cef0b0a38..b1b8e1ace7 100644 --- a/include/configs/exynos5-dt-common.h +++ b/include/configs/exynos5-dt-common.h @@ -24,9 +24,6 @@ #define CONFIG_POWER_TPS65090 /* Enable keyboard */ -#define CONFIG_CROS_EC /* CROS_EC protocol */ -#define CONFIG_CROS_EC_KEYB /* CROS_EC keyboard input */ -#define CONFIG_CMD_CROS_EC #define CONFIG_KEYBOARD #endif diff --git a/include/configs/km/km_arm.h b/include/configs/km/km_arm.h index f780f8b5bb..2ed0855fdd 100644 --- a/include/configs/km/km_arm.h +++ b/include/configs/km/km_arm.h @@ -195,7 +195,7 @@ } #ifndef __ASSEMBLY__ -#include <asm/arch-kirkwood/gpio.h> +#include <asm/arch/gpio.h> extern void __set_direction(unsigned pin, int high); void set_sda(int state); void set_scl(int state); diff --git a/include/configs/mx6sxsabresd.h b/include/configs/mx6sxsabresd.h index 1005b9e6bc..a2901294a6 100644 --- a/include/configs/mx6sxsabresd.h +++ b/include/configs/mx6sxsabresd.h @@ -227,8 +227,6 @@ #define CONFIG_PCIE_IMX_POWER_GPIO IMX_GPIO_NR(2, 1) #endif -#define CONFIG_DM -#define CONFIG_DM_THERMAL #define CONFIG_IMX6_THERMAL #define CONFIG_CMD_FUSE diff --git a/include/configs/odroid.h b/include/configs/odroid.h index 9d5dbdce36..8b47537614 100644 --- a/include/configs/odroid.h +++ b/include/configs/odroid.h @@ -177,8 +177,6 @@ /* I2C */ #define CONFIG_CMD_I2C -#define CONFIG_DM_I2C -#define CONFIG_DM_I2C_COMPAT #define CONFIG_SYS_I2C_S3C24X0 #define CONFIG_SYS_I2C_S3C24X0_SPEED 100000 #define CONFIG_SYS_I2C_S3C24X0_SLAVE 0 diff --git a/include/configs/peach-pi.h b/include/configs/peach-pi.h index f724164d89..f04f0613aa 100644 --- a/include/configs/peach-pi.h +++ b/include/configs/peach-pi.h @@ -43,7 +43,6 @@ #endif #define CONFIG_POWER_TPS65090_EC -#define CONFIG_CROS_EC_SPI /* Support CROS_EC over SPI */ #define CONFIG_USB_XHCI #define CONFIG_USB_XHCI_EXYNOS diff --git a/include/configs/peach-pit.h b/include/configs/peach-pit.h index de12a9e1b1..b5efbdcaa6 100644 --- a/include/configs/peach-pit.h +++ b/include/configs/peach-pit.h @@ -43,7 +43,6 @@ #endif #define CONFIG_POWER_TPS65090_EC -#define CONFIG_CROS_EC_SPI /* Support CROS_EC over SPI */ #define CONFIG_USB_XHCI #define CONFIG_USB_XHCI_EXYNOS diff --git a/include/configs/rpi-common.h b/include/configs/rpi-common.h new file mode 100644 index 0000000000..3121ac9874 --- /dev/null +++ b/include/configs/rpi-common.h @@ -0,0 +1,186 @@ +/* + * (C) Copyright 2012,2015 Stephen Warren + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#ifndef _RPI_COMMON_H_ +#define _RPI_COMMON_H_ + +#include <linux/sizes.h> + +/* Architecture, CPU, etc.*/ +#define CONFIG_SYS_GENERIC_BOARD +#define CONFIG_BCM2835 +#define CONFIG_ARCH_CPU_INIT +#define CONFIG_SYS_DCACHE_OFF +/* + * 2835 is a SKU in a series for which the 2708 is the first or primary SoC, + * so 2708 has historically been used rather than a dedicated 2835 ID. + * + * We don't define a machine type for bcm2709/bcm2836 since the RPi Foundation + * chose to use someone else's previously registered machine ID (3139, MX51_GGC) + * rather than obtaining a valid ID:-/ + */ +#ifndef CONFIG_BCM2836 +#define CONFIG_MACH_TYPE MACH_TYPE_BCM2708 +#endif + +/* Memory layout */ +#define CONFIG_NR_DRAM_BANKS 1 +#define CONFIG_SYS_SDRAM_BASE 0x00000000 +#define CONFIG_SYS_TEXT_BASE 0x00008000 +#define CONFIG_SYS_UBOOT_BASE CONFIG_SYS_TEXT_BASE +/* + * The board really has 256M. However, the VC (VideoCore co-processor) shares + * the RAM, and uses a configurable portion at the top. We tell U-Boot that a + * smaller amount of RAM is present in order to avoid stomping on the area + * the VC uses. + */ +#define CONFIG_SYS_SDRAM_SIZE SZ_128M +#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + \ + CONFIG_SYS_SDRAM_SIZE - \ + GENERATED_GBL_DATA_SIZE) +#define CONFIG_SYS_MALLOC_LEN SZ_4M +#define CONFIG_SYS_MEMTEST_START 0x00100000 +#define CONFIG_SYS_MEMTEST_END 0x00200000 +#define CONFIG_LOADADDR 0x00200000 + +/* Flash */ +#define CONFIG_SYS_NO_FLASH + +/* Devices */ +/* GPIO */ +#define CONFIG_BCM2835_GPIO +/* LCD */ +#define CONFIG_LCD +#define CONFIG_LCD_DT_SIMPLEFB +#define LCD_BPP LCD_COLOR16 +/* + * Prevent allocation of RAM for FB; the real FB address is queried + * dynamically from the VideoCore co-processor, and comes from RAM + * not owned by the ARM CPU. + */ +#define CONFIG_FB_ADDR 0 +#define CONFIG_VIDEO_BCM2835 +#define CONFIG_SYS_WHITE_ON_BLACK + +/* SD/MMC configuration */ +#define CONFIG_GENERIC_MMC +#define CONFIG_MMC +#define CONFIG_SDHCI +#define CONFIG_MMC_SDHCI_IO_ACCESSORS +#define CONFIG_BCM2835_SDHCI + +#define CONFIG_CMD_USB +#ifdef CONFIG_CMD_USB +#define CONFIG_USB_DWC2 +#ifdef CONFIG_BCM2836 +#define CONFIG_USB_DWC2_REG_ADDR 0x3f980000 +#else +#define CONFIG_USB_DWC2_REG_ADDR 0x20980000 +#endif +#define CONFIG_USB_STORAGE +#define CONFIG_USB_HOST_ETHER +#define CONFIG_USB_ETHER_SMSC95XX +#define CONFIG_MISC_INIT_R +#endif + +/* Console UART */ +#define CONFIG_PL01X_SERIAL +#define CONFIG_CONS_INDEX 0 +#define CONFIG_BAUDRATE 115200 + +/* Console configuration */ +#define CONFIG_SYS_CBSIZE 1024 +#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \ + sizeof(CONFIG_SYS_PROMPT) + 16) + +/* Environment */ +#define CONFIG_ENV_SIZE SZ_16K +#define CONFIG_ENV_IS_IN_FAT +#define FAT_ENV_INTERFACE "mmc" +#define FAT_ENV_DEVICE_AND_PART "0:1" +#define FAT_ENV_FILE "uboot.env" +#define CONFIG_FAT_WRITE +#define CONFIG_ENV_VARS_UBOOT_CONFIG +#define CONFIG_SYS_LOAD_ADDR 0x1000000 +#define CONFIG_CONSOLE_MUX +#define CONFIG_SYS_CONSOLE_IS_IN_ENV + +/* Shell */ +#define CONFIG_SYS_MAXARGS 8 +#define CONFIG_SYS_PROMPT "U-Boot> " +#define CONFIG_COMMAND_HISTORY + +/* Commands */ +#include <config_cmd_default.h> +#define CONFIG_CMD_GPIO +#define CONFIG_CMD_MMC +#define CONFIG_PARTITION_UUIDS +#define CONFIG_CMD_PART + +/* Device tree support */ +#define CONFIG_OF_BOARD_SETUP +/* ATAGs support for bootm/bootz */ +#define CONFIG_SETUP_MEMORY_TAGS +#define CONFIG_CMDLINE_TAG +#define CONFIG_INITRD_TAG + +#include <config_distro_defaults.h> + +/* Some things don't make sense on this HW or yet */ +#undef CONFIG_CMD_FPGA + +/* Environment */ +#define ENV_DEVICE_SETTINGS \ + "stdin=serial,lcd\0" \ + "stdout=serial,lcd\0" \ + "stderr=serial,lcd\0" + +/* + * Memory layout for where various images get loaded by boot scripts: + * + * scriptaddr can be pretty much anywhere that doesn't conflict with something + * else. Put it low in memory to avoid conflicts. + * + * pxefile_addr_r can be pretty much anywhere that doesn't conflict with + * something else. Put it low in memory to avoid conflicts. + * + * kernel_addr_r must be within the first 128M of RAM in order for the + * kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will + * decompress itself to 0x8000 after the start of RAM, kernel_addr_r + * should not overlap that area, or the kernel will have to copy itself + * somewhere else before decompression. Similarly, the address of any other + * data passed to the kernel shouldn't overlap the start of RAM. Pushing + * this up to 16M allows for a sizable kernel to be decompressed below the + * compressed load address. + * + * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for + * the compressed kernel to be up to 16M too. + * + * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows + * for the FDT/DTB to be up to 1M, which is hopefully plenty. + */ +#define ENV_MEM_LAYOUT_SETTINGS \ + "scriptaddr=0x00000000\0" \ + "pxefile_addr_r=0x00100000\0" \ + "kernel_addr_r=0x01000000\0" \ + "fdt_addr_r=0x02000000\0" \ + "ramdisk_addr_r=0x02100000\0" \ + +#define BOOT_TARGET_DEVICES(func) \ + func(MMC, mmc, 0) \ + func(USB, usb, 0) \ + func(PXE, pxe, na) \ + func(DHCP, dhcp, na) +#include <config_distro_bootcmd.h> + +#define CONFIG_EXTRA_ENV_SETTINGS \ + ENV_DEVICE_SETTINGS \ + ENV_MEM_LAYOUT_SETTINGS \ + BOOTENV + +#define CONFIG_BOOTDELAY 2 + +#endif diff --git a/include/configs/rpi.h b/include/configs/rpi.h index 7ad8d08021..ab2f4db39f 100644 --- a/include/configs/rpi.h +++ b/include/configs/rpi.h @@ -1,186 +1,12 @@ /* - * (C) Copyright 2012 Stephen Warren + * (C) Copyright 2012,2015 Stephen Warren * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * 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. + * SPDX-License-Identifier: GPL-2.0 */ #ifndef __CONFIG_H #define __CONFIG_H -#include <linux/sizes.h> - -/* Architecture, CPU, etc.*/ -#define CONFIG_SYS_GENERIC_BOARD -#define CONFIG_BCM2835 -#define CONFIG_ARCH_CPU_INIT -#define CONFIG_SYS_DCACHE_OFF -/* - * 2835 is a SKU in a series for which the 2708 is the first or primary SoC, - * so 2708 has historically been used rather than a dedicated 2835 ID. - */ -#define CONFIG_MACH_TYPE MACH_TYPE_BCM2708 - -/* Memory layout */ -#define CONFIG_NR_DRAM_BANKS 1 -#define CONFIG_SYS_SDRAM_BASE 0x00000000 -#define CONFIG_SYS_TEXT_BASE 0x00008000 -#define CONFIG_SYS_UBOOT_BASE CONFIG_SYS_TEXT_BASE -/* - * The board really has 256M. However, the VC (VideoCore co-processor) shares - * the RAM, and uses a configurable portion at the top. We tell U-Boot that a - * smaller amount of RAM is present in order to avoid stomping on the area - * the VC uses. - */ -#define CONFIG_SYS_SDRAM_SIZE SZ_128M -#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + \ - CONFIG_SYS_SDRAM_SIZE - \ - GENERATED_GBL_DATA_SIZE) -#define CONFIG_SYS_MALLOC_LEN SZ_4M -#define CONFIG_SYS_MEMTEST_START 0x00100000 -#define CONFIG_SYS_MEMTEST_END 0x00200000 -#define CONFIG_LOADADDR 0x00200000 - -/* Flash */ -#define CONFIG_SYS_NO_FLASH - -/* Devices */ -/* GPIO */ -#define CONFIG_BCM2835_GPIO -/* LCD */ -#define CONFIG_LCD -#define CONFIG_LCD_DT_SIMPLEFB -#define LCD_BPP LCD_COLOR16 -/* - * Prevent allocation of RAM for FB; the real FB address is queried - * dynamically from the VideoCore co-processor, and comes from RAM - * not owned by the ARM CPU. - */ -#define CONFIG_FB_ADDR 0 -#define CONFIG_VIDEO_BCM2835 -#define CONFIG_SYS_WHITE_ON_BLACK - -/* SD/MMC configuration */ -#define CONFIG_GENERIC_MMC -#define CONFIG_MMC -#define CONFIG_SDHCI -#define CONFIG_MMC_SDHCI_IO_ACCESSORS -#define CONFIG_BCM2835_SDHCI - -#define CONFIG_CMD_USB -#ifdef CONFIG_CMD_USB -#define CONFIG_USB_DWC2 -#define CONFIG_USB_DWC2_REG_ADDR 0x20980000 -#define CONFIG_USB_STORAGE -#define CONFIG_USB_HOST_ETHER -#define CONFIG_USB_ETHER_SMSC95XX -#define CONFIG_MISC_INIT_R -#endif - -/* Console UART */ -#define CONFIG_PL01X_SERIAL -#define CONFIG_CONS_INDEX 0 -#define CONFIG_BAUDRATE 115200 - -/* Console configuration */ -#define CONFIG_SYS_CBSIZE 1024 -#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \ - sizeof(CONFIG_SYS_PROMPT) + 16) - -/* Environment */ -#define CONFIG_ENV_SIZE SZ_16K -#define CONFIG_ENV_IS_IN_FAT -#define FAT_ENV_INTERFACE "mmc" -#define FAT_ENV_DEVICE_AND_PART "0:1" -#define FAT_ENV_FILE "uboot.env" -#define CONFIG_FAT_WRITE -#define CONFIG_ENV_VARS_UBOOT_CONFIG -#define CONFIG_SYS_LOAD_ADDR 0x1000000 -#define CONFIG_CONSOLE_MUX -#define CONFIG_SYS_CONSOLE_IS_IN_ENV - -/* Shell */ -#define CONFIG_SYS_MAXARGS 8 -#define CONFIG_SYS_PROMPT "U-Boot> " -#define CONFIG_COMMAND_HISTORY - -/* Commands */ -#include <config_cmd_default.h> -#define CONFIG_CMD_GPIO -#define CONFIG_CMD_MMC -#define CONFIG_PARTITION_UUIDS -#define CONFIG_CMD_PART - -/* Device tree support */ -#define CONFIG_OF_BOARD_SETUP -/* ATAGs support for bootm/bootz */ -#define CONFIG_SETUP_MEMORY_TAGS -#define CONFIG_CMDLINE_TAG -#define CONFIG_INITRD_TAG - -#include <config_distro_defaults.h> - -/* Some things don't make sense on this HW or yet */ -#undef CONFIG_CMD_FPGA - -/* Environment */ -#define ENV_DEVICE_SETTINGS \ - "stdin=serial,lcd\0" \ - "stdout=serial,lcd\0" \ - "stderr=serial,lcd\0" - -/* - * Memory layout for where various images get loaded by boot scripts: - * - * scriptaddr can be pretty much anywhere that doesn't conflict with something - * else. Put it low in memory to avoid conflicts. - * - * pxefile_addr_r can be pretty much anywhere that doesn't conflict with - * something else. Put it low in memory to avoid conflicts. - * - * kernel_addr_r must be within the first 128M of RAM in order for the - * kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will - * decompress itself to 0x8000 after the start of RAM, kernel_addr_r - * should not overlap that area, or the kernel will have to copy itself - * somewhere else before decompression. Similarly, the address of any other - * data passed to the kernel shouldn't overlap the start of RAM. Pushing - * this up to 16M allows for a sizable kernel to be decompressed below the - * compressed load address. - * - * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for - * the compressed kernel to be up to 16M too. - * - * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows - * for the FDT/DTB to be up to 1M, which is hopefully plenty. - */ -#define ENV_MEM_LAYOUT_SETTINGS \ - "scriptaddr=0x00000000\0" \ - "pxefile_addr_r=0x00100000\0" \ - "kernel_addr_r=0x01000000\0" \ - "fdt_addr_r=0x02000000\0" \ - "ramdisk_addr_r=0x02100000\0" \ - -#define BOOT_TARGET_DEVICES(func) \ - func(MMC, mmc, 0) \ - func(USB, usb, 0) \ - func(PXE, pxe, na) \ - func(DHCP, dhcp, na) -#include <config_distro_bootcmd.h> - -#define CONFIG_EXTRA_ENV_SETTINGS \ - ENV_DEVICE_SETTINGS \ - ENV_MEM_LAYOUT_SETTINGS \ - BOOTENV - -#define CONFIG_BOOTDELAY 2 +#include "rpi-common.h" #endif diff --git a/include/configs/rpi_2.h b/include/configs/rpi_2.h new file mode 100644 index 0000000000..2e7e74fd56 --- /dev/null +++ b/include/configs/rpi_2.h @@ -0,0 +1,15 @@ +/* + * (C) Copyright 2012,2015 Stephen Warren + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#ifndef __CONFIG_H +#define __CONFIG_H + +#define CONFIG_SKIP_LOWLEVEL_INIT +#define CONFIG_BCM2836 + +#include "rpi-common.h" + +#endif diff --git a/include/configs/sama5d3_xplained.h b/include/configs/sama5d3_xplained.h index 5a0ab284ab..5dab61d56d 100644 --- a/include/configs/sama5d3_xplained.h +++ b/include/configs/sama5d3_xplained.h @@ -227,7 +227,7 @@ #define CONFIG_SYS_MONITOR_LEN (512 << 10) #ifdef CONFIG_SYS_USE_MMC -#define CONFIG_SPL_LDSCRIPT arch/arm/cpu/at91-common/u-boot-spl.lds +#define CONFIG_SPL_LDSCRIPT arch/arm/mach-at91/u-boot-spl.lds #define CONFIG_SPL_MMC_SUPPORT #define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS 0x400 #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR 0x200 diff --git a/include/configs/sama5d3xek.h b/include/configs/sama5d3xek.h index cccc1edbb8..bd288beaeb 100644 --- a/include/configs/sama5d3xek.h +++ b/include/configs/sama5d3xek.h @@ -274,7 +274,7 @@ #define CONFIG_SYS_MONITOR_LEN (512 << 10) #ifdef CONFIG_SYS_USE_MMC -#define CONFIG_SPL_LDSCRIPT arch/arm/cpu/at91-common/u-boot-spl.lds +#define CONFIG_SPL_LDSCRIPT arch/arm/mach-at91/u-boot-spl.lds #define CONFIG_SPL_MMC_SUPPORT #define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS 0x400 #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR 0x200 diff --git a/include/configs/sandbox.h b/include/configs/sandbox.h index 5c116508d0..febbfb69f6 100644 --- a/include/configs/sandbox.h +++ b/include/configs/sandbox.h @@ -141,9 +141,6 @@ #define CONFIG_BOOTARGS "" -#define CONFIG_CROS_EC -#define CONFIG_CMD_CROS_EC -#define CONFIG_CROS_EC_SANDBOX #define CONFIG_ARCH_EARLY_INIT_R #define CONFIG_BOARD_LATE_INIT @@ -166,7 +163,6 @@ #define LCD_BPP LCD_COLOR16 #define CONFIG_LCD_BMP_RLE8 -#define CONFIG_CROS_EC_KEYB #define CONFIG_KEYBOARD #define CONFIG_EXTRA_ENV_SETTINGS "stdin=serial,cros-ec-keyb\0" \ diff --git a/include/configs/snow.h b/include/configs/snow.h index ce6676eae7..fe802f253c 100644 --- a/include/configs/snow.h +++ b/include/configs/snow.h @@ -20,9 +20,7 @@ #include <configs/exynos5-dt-common.h> -#define CONFIG_CROS_EC_I2C /* Support CROS_EC over I2C */ #define CONFIG_POWER_TPS65090_I2C -#define CONFIG_DM_CROS_EC #define CONFIG_BOARD_COMMON #define CONFIG_ARCH_EARLY_INIT_R diff --git a/include/debug_uart.h b/include/debug_uart.h new file mode 100644 index 0000000000..f56797b72f --- /dev/null +++ b/include/debug_uart.h @@ -0,0 +1,139 @@ +/* + * Early debug UART support + * + * (C) Copyright 2014 Google, Inc + * Writte by Simon Glass <sjg@chromium.org> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _DEBUG_UART_H +#define _DEBUG_UART_H + +#include <linux/linkage.h> + +/* + * The debug UART is intended for use very early in U-Boot to debug problems + * when an ICE or other debug mechanism is not available. + * + * To use it you should: + * - Make sure your UART supports this interface + * - Enable CONFIG_DEBUG_UART + * - Enable the CONFIG for your UART to tell it to provide this interface + * (e.g. CONFIG_DEBUG_UART_NS16550) + * - Define the required settings as needed (see below) + * - Call debug_uart_init() before use + * - Call printch() to output a character + * + * Depending on your platform it may be possible to use this UART before a + * stack is available. + * + * If your UART does not support this interface you can probably add support + * quite easily. Remember that you cannot use driver model and it is preferred + * to use no stack. + * + * You must not use this UART once driver model is working and the serial + * drivers are up and running (done in serial_init()). Otherwise the drivers + * may conflict and you will get strange output. + * + * + * To enable the debug UART in your serial driver: + * + * - #include <debug_uart.h> + * - Define debug_uart_init(), trying to avoid using the stack + * - Define _debug_uart_putc() as static inline (avoiding stack usage) + * - Immediately afterwards, add DEBUG_UART_FUNCS to define the rest of the + * functionality (printch(), etc.) + */ + +/** + * debug_uart_init() - Set up the debug UART ready for use + * + * This sets up the UART with the correct baud rate, etc. + * + * Available CONFIG is: + * + * - CONFIG_DEBUG_UART_BASE: Base address of UART + * - CONFIG_BAUDRATE: Requested baud rate + * - CONFIG_DEBUG_UART_CLOCK: Input clock for UART + */ +void debug_uart_init(void); + +/** + * printch() - Output a character to the debug UART + * + * @ch: Character to output + */ +asmlinkage void printch(int ch); + +/** + * printascii() - Output an ASCII string to the debug UART + * + * @str: String to output + */ +asmlinkage void printascii(const char *str); + +/** + * printhex2() - Output a 2-digit hex value + * + * @value: Value to output + */ +asmlinkage void printhex2(uint value); + +/** + * printhex4() - Output a 4-digit hex value + * + * @value: Value to output + */ +asmlinkage void printhex4(uint value); + +/** + * printhex8() - Output a 8-digit hex value + * + * @value: Value to output + */ +asmlinkage void printhex8(uint value); + +/* + * Now define some functions - this should be inserted into the serial driver + */ +#define DEBUG_UART_FUNCS \ + asmlinkage void printch(int ch) \ + { \ + _debug_uart_putc(ch); \ + } \ +\ + asmlinkage void printascii(const char *str) \ + { \ + while (*str) \ + _debug_uart_putc(*str++); \ + } \ +\ + static inline void printhex1(uint digit) \ + { \ + digit &= 0xf; \ + _debug_uart_putc(digit > 9 ? digit - 10 + 'a' : digit + '0'); \ + } \ +\ + static inline void printhex(uint value, int digits) \ + { \ + while (digits-- > 0) \ + printhex1(value >> (4 * digits)); \ + } \ +\ + asmlinkage void printhex2(uint value) \ + { \ + printhex(value, 2); \ + } \ +\ + asmlinkage void printhex4(uint value) \ + { \ + printhex(value, 4); \ + } \ +\ + asmlinkage void printhex8(uint value) \ + { \ + printhex(value, 8); \ + } + +#endif diff --git a/include/dm/device-internal.h b/include/dm/device-internal.h index f0cc794750..e2418fedb9 100644 --- a/include/dm/device-internal.h +++ b/include/dm/device-internal.h @@ -101,7 +101,11 @@ static inline int device_remove(struct udevice *dev) { return 0; } * @dev: Pointer to device to unbind * @return 0 if OK, -ve on error */ +#ifdef CONFIG_DM_DEVICE_REMOVE int device_unbind(struct udevice *dev); +#else +static inline int device_unbind(struct udevice *dev) { return 0; } +#endif #ifdef CONFIG_DM_DEVICE_REMOVE void device_free(struct udevice *dev); |