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sandbox: Add a debug UART 

Add support for the debug UART so that sandbox provides build testing for
this feature.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2018-10-01 11:55:15 -06:00
parent 55d39911c0
commit ee4417644c
3 changed files with 30 additions and 0 deletions
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2
configs/sandbox_defconfig
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@ -1,5 +1,6 @@
CONFIG_SYS_TEXT_BASE=0 CONFIG_SYS_TEXT_BASE=0
CONFIG_SYS_MALLOC_F_LEN=0x2000 CONFIG_SYS_MALLOC_F_LEN=0x2000
CONFIG_DEBUG_UART=y
CONFIG_DISTRO_DEFAULTS=y CONFIG_DISTRO_DEFAULTS=y
CONFIG_NR_DRAM_BANKS=1 CONFIG_NR_DRAM_BANKS=1
CONFIG_ANDROID_BOOT_IMAGE=y CONFIG_ANDROID_BOOT_IMAGE=y
@ -173,6 +174,7 @@ CONFIG_REMOTEPROC_SANDBOX=y
CONFIG_DM_RESET=y CONFIG_DM_RESET=y
CONFIG_SANDBOX_RESET=y CONFIG_SANDBOX_RESET=y
CONFIG_DM_RTC=y CONFIG_DM_RTC=y
CONFIG_DEBUG_UART_SANDBOX=y
CONFIG_SANDBOX_SERIAL=y CONFIG_SANDBOX_SERIAL=y
CONFIG_SMEM=y CONFIG_SMEM=y
CONFIG_SANDBOX_SMEM=y CONFIG_SANDBOX_SMEM=y

11
drivers/serial/Kconfig
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@ -324,6 +324,15 @@ config DEBUG_UART_MXC
will need to provide parameters to make this work. The driver will will need to provide parameters to make this work. The driver will
be available until the real driver model serial is running. be available until the real driver model serial is running.
config DEBUG_UART_SANDBOX
bool "sandbox"
depends on SANDBOX_SERIAL
help
Select this to enable the debug UART using the sandbox driver. This
provides basic serial output from the console without needing to
start up driver model. The driver will be available until the real
driver model serial is running.
config DEBUG_UART_STM32 config DEBUG_UART_STM32
bool "STMicroelectronics STM32" bool "STMicroelectronics STM32"
depends on STM32_SERIAL depends on STM32_SERIAL
@ -354,6 +363,7 @@ endchoice
config DEBUG_UART_BASE config DEBUG_UART_BASE
hex "Base address of UART" hex "Base address of UART"
depends on DEBUG_UART depends on DEBUG_UART
default 0 if DEBUG_UART_SANDBOX
help help
This is the base address of your UART for memory-mapped UARTs. This is the base address of your UART for memory-mapped UARTs.
@ -363,6 +373,7 @@ config DEBUG_UART_BASE
config DEBUG_UART_CLOCK config DEBUG_UART_CLOCK
int "UART input clock" int "UART input clock"
depends on DEBUG_UART depends on DEBUG_UART
default 0 if DEBUG_UART_SANDBOX
help help
The UART input clock determines the speed of the internal UART The UART input clock determines the speed of the internal UART
circuitry. The baud rate is derived from this by dividing the input circuitry. The baud rate is derived from this by dividing the input

17
drivers/serial/sandbox.c
View File

@ -143,6 +143,23 @@ static int sandbox_serial_getc(struct udevice *dev)
return result; return result;
} }
#ifdef CONFIG_DEBUG_UART_SANDBOX
#include <debug_uart.h>
static inline void _debug_uart_init(void)
{
}
static inline void _debug_uart_putc(int ch)
{
os_putc(ch);
}
DEBUG_UART_FUNCS
#endif /* CONFIG_DEBUG_UART_SANDBOX */
static int sandbox_serial_setconfig(struct udevice *dev, uint serial_config) static int sandbox_serial_setconfig(struct udevice *dev, uint serial_config)
{ {
u8 parity = SERIAL_GET_PARITY(serial_config); u8 parity = SERIAL_GET_PARITY(serial_config);