diff options
| -rw-r--r-- | src/console/Kconfig | 7 | ||||
| -rw-r--r-- | src/console/Makefile.inc | 2 | ||||
| -rw-r--r-- | src/console/console.c | 4 | ||||
| -rw-r--r-- | src/cpu/Kconfig | 1 | ||||
| -rw-r--r-- | src/cpu/samsung/Kconfig | 1 | ||||
| -rw-r--r-- | src/cpu/samsung/exynos5250/uart.c | 6 | ||||
| -rw-r--r-- | src/cpu/samsung/exynos5250/uart.h | 1 | ||||
| -rw-r--r-- | src/include/uart.h | 22 | ||||
| -rw-r--r-- | src/include/uart8250.h | 1 |
9 files changed, 33 insertions, 12 deletions
diff --git a/src/console/Kconfig b/src/console/Kconfig index 117fdb890a..b1f41de12b 100644 --- a/src/console/Kconfig +++ b/src/console/Kconfig @@ -5,6 +5,13 @@ config SERIAL_CONSOLE help Send coreboot debug output to a serial port +config EARLY_SERIAL_CONSOLE + bool + depends on SERIAL_CONSOLE + default n + help + Use serial console during early (pre-RAM) boot stages + config CONSOLE_SERIAL8250 bool "Serial port console output (I/O mapped, 8250-compatible)" depends on SERIAL_CONSOLE diff --git a/src/console/Makefile.inc b/src/console/Makefile.inc index a712486f53..3c4777fbef 100644 --- a/src/console/Makefile.inc +++ b/src/console/Makefile.inc @@ -10,7 +10,7 @@ smm-y += vtxprintf.c smm-$(CONFIG_SMM_TSEG) += die.c romstage-y += vtxprintf.c -romstage-$(CONFIG_CACHE_AS_RAM) += console.c +romstage-$(CONFIG_EARLY_SERIAL_CONSOLE) += console.c romstage-y += post.c romstage-y += die.c diff --git a/src/console/console.c b/src/console/console.c index d5f25a5fee..ad8f217fe8 100644 --- a/src/console/console.c +++ b/src/console/console.c @@ -99,13 +99,15 @@ int console_tst_byte(void) #else // __PRE_RAM__ ^^^ NOT defined vvv defined +#include <uart.h> + void console_init(void) { #if CONFIG_USBDEBUG enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT); early_usbdebug_init(); #endif -#if CONFIG_CONSOLE_SERIAL8250 +#if CONFIG_HAVE_UART_IO_MAPPED || CONFIG_HAVE_UART_MEMORY_MAPPED uart_init(); #endif #if CONFIG_DRIVERS_OXFORD_OXPCIE && CONFIG_CONSOLE_SERIAL8250MEM diff --git a/src/cpu/Kconfig b/src/cpu/Kconfig index 383ba796a2..ddc46cf393 100644 --- a/src/cpu/Kconfig +++ b/src/cpu/Kconfig @@ -16,6 +16,7 @@ source src/cpu/x86/Kconfig config CACHE_AS_RAM bool + select EARLY_SERIAL_CONSOLE default !ROMCC config DCACHE_RAM_BASE diff --git a/src/cpu/samsung/Kconfig b/src/cpu/samsung/Kconfig index 4a09ca3cdb..abfc0494e6 100644 --- a/src/cpu/samsung/Kconfig +++ b/src/cpu/samsung/Kconfig @@ -5,6 +5,7 @@ config CPU_SAMSUNG_EXYNOS config CPU_SAMSUNG_EXYNOS5 depends on ARCH_ARMV7 select CPU_SAMSUNG_EXYNOS + select EARLY_SERIAL_CONSOLE bool default n diff --git a/src/cpu/samsung/exynos5250/uart.c b/src/cpu/samsung/exynos5250/uart.c index 3d43976b6d..2d7bf38628 100644 --- a/src/cpu/samsung/exynos5250/uart.c +++ b/src/cpu/samsung/exynos5250/uart.c @@ -23,6 +23,7 @@ //#include <common.h> //#include <linux/compiler.h> +#include <types.h> #include <uart.h> #include <arch/io.h> //#include <asm/arch-exynos/spl.h> @@ -34,7 +35,6 @@ #include <cpu/samsung/exynos5-common/exynos5-common.h> #include <cpu/samsung/exynos5250/clk.h> -#include <cpu/samsung/exynos5250/uart.h> #define RX_FIFO_COUNT_MASK 0xff #define RX_FIFO_FULL_MASK (1 << 8) @@ -218,12 +218,12 @@ static const struct console_driver exynos5_uart_console __console = { //unsigned char (*uart_rx_byte)(unsigned base_port) = exynos5_uart_rx_byte; //void (*uart_tx_byte)(unsigned base_port, unsigned char data) = exynos5_uart_tx_byte; /* FIXME: trivial wrappers */ -void uart_init() +void uart_init(void) { exynos5_init_dev(); } -unsigned char uart_rx_byte() +unsigned char uart_rx_byte(void) { return exynos5_uart_rx_byte(); } diff --git a/src/cpu/samsung/exynos5250/uart.h b/src/cpu/samsung/exynos5250/uart.h index 8190c67cde..033d605314 100644 --- a/src/cpu/samsung/exynos5250/uart.h +++ b/src/cpu/samsung/exynos5250/uart.h @@ -68,4 +68,5 @@ static inline int s5p_uart_divslot(void) return 0; } +void uart_init(void); #endif diff --git a/src/include/uart.h b/src/include/uart.h index 931d6dce82..6628314ae2 100644 --- a/src/include/uart.h +++ b/src/include/uart.h @@ -15,19 +15,29 @@ * 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(dhendrix): This file contains generic prototypes for UART functions. - * The existing headers are too specific to the 8250, so we need a better - * abstraction for use with non-8250 UARTs. */ +/* madness. Uarts are a mess. If you include this file, it + * includes ALL uart implementations which may be needed. + * No need to include them separately, and include this file FIRST. + * At least one (but at most one) of the files needs to define + * uart_init(). + */ #ifndef UART_H #define UART_H +#if CONFIG_CONSOLE_SERIAL8250 +#include <uart8250.h> +#endif + +#if CONFIG_CPU_SAMSUNG_EXYNOS5 +#include <cpu/samsung/exynos5250/uart.h> +#endif + +#ifndef __ROMCC__ unsigned char uart_rx_byte(void); void uart_tx_byte(unsigned char data); void uart_tx_flush(void); - -void uart_init(void); +#endif #endif /* UART_H */ diff --git a/src/include/uart8250.h b/src/include/uart8250.h index b00ff48006..9af43f264b 100644 --- a/src/include/uart8250.h +++ b/src/include/uart8250.h @@ -120,7 +120,6 @@ unsigned char uart8250_rx_byte(unsigned base_port); int uart8250_can_rx_byte(unsigned base_port); void uart8250_tx_byte(unsigned base_port, unsigned char data); void uart8250_tx_flush(unsigned base_port); - /* Yes it is silly to have three different uart init functions. But we used to * have three different sets of uart code, so it's an improvement. */ |