Gabe Black (gabeblack@chromium.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/3671
-gerrit
commit d2bea8a1457c78d4319f8712d2e1b927d0ee76bf Author: Gabe Black gabeblack@google.com Date: Thu Jun 6 00:21:20 2013 -0700
ARM: Separate the early console (romstage) from the bootblock console.
It might be that you want an early console in romstage before RAM is up, but you can't or don't want to support the console all the way back in the bootblock. By making the console in those two different environments configurable seperately that becomes possible.
On the 5250 console output as early as the bootblock works, but on the 5420 it only starts working in the ROM stage after clocks have been initialized.
Change-Id: I68ae3fcb4d828fa8a328a30001c23c81a4423bb8 Signed-off-by: Gabe Black gabeblack@chromium.org --- src/arch/armv7/Makefile.inc | 2 +- src/arch/armv7/bootblock_simple.c | 2 +- src/console/Kconfig | 10 ++++++++++ src/console/Makefile.inc | 2 +- src/console/console.c | 3 ++- src/cpu/samsung/Kconfig | 1 + src/cpu/samsung/exynos5250/Makefile.inc | 12 ++++++------ src/cpu/samsung/exynos5420/Makefile.inc | 12 ++++++------ src/include/console/console.h | 3 ++- src/mainboard/emulation/qemu-armv7/Makefile.inc | 2 +- 10 files changed, 31 insertions(+), 18 deletions(-)
diff --git a/src/arch/armv7/Makefile.inc b/src/arch/armv7/Makefile.inc index 8474315..1a328c4 100644 --- a/src/arch/armv7/Makefile.inc +++ b/src/arch/armv7/Makefile.inc @@ -163,7 +163,7 @@ $(obj)/mainboard/$(MAINBOARDDIR)/romstage.pre.inc: $(src)/mainboard/$(MAINBOARDD ramstage-y += exception.c ramstage-y += exception_asm.S
-bootblock-$(CONFIG_EARLY_CONSOLE) += early_console.c +bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += early_console.c bootblock-y += cache.c
romstage-y += cache.c diff --git a/src/arch/armv7/bootblock_simple.c b/src/arch/armv7/bootblock_simple.c index 5d0fe7e..541175c 100644 --- a/src/arch/armv7/bootblock_simple.c +++ b/src/arch/armv7/bootblock_simple.c @@ -68,7 +68,7 @@ void main(void) bootblock_mainboard_init(); }
-#ifdef CONFIG_EARLY_CONSOLE +#ifdef CONFIG_BOOTBLOCK_CONSOLE console_init(); #endif
diff --git a/src/console/Kconfig b/src/console/Kconfig index dc41fd3..f62cfdd 100644 --- a/src/console/Kconfig +++ b/src/console/Kconfig @@ -1,5 +1,15 @@ menu "Console"
+config DEFAULT_BOOTBLOCK_CONSOLE + bool + default n + +config BOOTBLOCK_CONSOLE + bool "Enable early (bootblock) console output." + default DEFAULT_BOOTBLOCK_CONSOLE + help + Use console during the bootblock if supported + config DEFAULT_EARLY_CONSOLE bool default n diff --git a/src/console/Makefile.inc b/src/console/Makefile.inc index ed2287e..9edec3c 100644 --- a/src/console/Makefile.inc +++ b/src/console/Makefile.inc @@ -14,7 +14,7 @@ romstage-y += console.c romstage-y += post.c romstage-y += die.c
-bootblock-$(CONFIG_EARLY_CONSOLE) += vtxprintf.c +bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += vtxprintf.c bootblock-y += console.c bootblock-y += die.c
diff --git a/src/console/console.c b/src/console/console.c index 2f7de02..c53adc6 100644 --- a/src/console/console.c +++ b/src/console/console.c @@ -101,7 +101,8 @@ int console_tst_byte(void)
void console_init(void) { -#if CONFIG_EARLY_CONSOLE +#if defined(__BOOT_BLOCK__) && CONFIG_BOOTBLOCK_CONSOLE || \ + !defined(__BOOT_BLOCK__) && CONFIG_EARLY_CONSOLE
#if CONFIG_USBDEBUG enable_usbdebug(CONFIG_USBDEBUG_DEFAULT_PORT); diff --git a/src/cpu/samsung/Kconfig b/src/cpu/samsung/Kconfig index 3b6df9e..54f4ed1 100644 --- a/src/cpu/samsung/Kconfig +++ b/src/cpu/samsung/Kconfig @@ -2,6 +2,7 @@ config CPU_SAMSUNG_EXYNOS5250 depends on ARCH_ARMV7 select HAVE_MONOTONIC_TIMER select HAVE_UART_SPECIAL + select DEFAULT_BOOTBLOCK_CONSOLE select DEFAULT_EARLY_CONSOLE bool default n diff --git a/src/cpu/samsung/exynos5250/Makefile.inc b/src/cpu/samsung/exynos5250/Makefile.inc index dcc783d..663f532 100644 --- a/src/cpu/samsung/exynos5250/Makefile.inc +++ b/src/cpu/samsung/exynos5250/Makefile.inc @@ -6,14 +6,14 @@ INTERMEDIATE += exynos5250_add_bl1 bootblock-y += spi.c bootblock-y += pinmux.c mct.c power.c # Clock is required for UART -bootblock-$(CONFIG_EARLY_CONSOLE) += clock_init.c -bootblock-$(CONFIG_EARLY_CONSOLE) += clock.c -bootblock-$(CONFIG_EARLY_CONSOLE) += monotonic_timer.c -bootblock-$(CONFIG_EARLY_CONSOLE) += uart.c +bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += clock_init.c +bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += clock.c +bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += monotonic_timer.c +bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += uart.c bootblock-y += wakeup.c bootblock-y += gpio.c -bootblock-$(CONFIG_EARLY_CONSOLE) += pwm.c -bootblock-$(CONFIG_EARLY_CONSOLE) += timer.c +bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += pwm.c +bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += timer.c
romstage-y += spi.c romstage-y += clock.c diff --git a/src/cpu/samsung/exynos5420/Makefile.inc b/src/cpu/samsung/exynos5420/Makefile.inc index c3416c4..1dddd21 100644 --- a/src/cpu/samsung/exynos5420/Makefile.inc +++ b/src/cpu/samsung/exynos5420/Makefile.inc @@ -6,14 +6,14 @@ INTERMEDIATE += exynos5420_add_bl1 bootblock-y += spi.c bootblock-y += pinmux.c mct.c power.c # Clock is required for UART -bootblock-$(CONFIG_EARLY_CONSOLE) += clock_init.c -bootblock-$(CONFIG_EARLY_CONSOLE) += clock.c -bootblock-$(CONFIG_EARLY_CONSOLE) += monotonic_timer.c -bootblock-$(CONFIG_EARLY_CONSOLE) += uart.c +bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += clock_init.c +bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += clock.c +bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += monotonic_timer.c +bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += uart.c bootblock-y += wakeup.c bootblock-y += gpio.c -bootblock-$(CONFIG_EARLY_CONSOLE) += pwm.c -bootblock-$(CONFIG_EARLY_CONSOLE) += timer.c +bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += pwm.c +bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += timer.c
romstage-y += spi.c romstage-y += clock.c diff --git a/src/include/console/console.h b/src/include/console/console.h index 9112f35..2f5f18e 100644 --- a/src/include/console/console.h +++ b/src/include/console/console.h @@ -77,7 +77,8 @@ void mainboard_post(u8 value); void __attribute__ ((noreturn)) die(const char *msg); int do_printk(int msg_level, const char *fmt, ...) __attribute__((format(printf, 2, 3)));
-#if defined(__PRE_RAM__) && !CONFIG_EARLY_CONSOLE +#if defined(__BOOT_BLOCK__) && !CONFIG_BOOTBLOCK_CONSOLE || \ + (defined(__PRE_RAM__) && !defined(__BOOT_BLOCK__)) && !CONFIG_EARLY_CONSOLE
static inline void printk(int LEVEL, const char *fmt, ...); static inline void printk(int LEVEL, const char *fmt, ...) { diff --git a/src/mainboard/emulation/qemu-armv7/Makefile.inc b/src/mainboard/emulation/qemu-armv7/Makefile.inc index 46ecfed..431d9ab 100644 --- a/src/mainboard/emulation/qemu-armv7/Makefile.inc +++ b/src/mainboard/emulation/qemu-armv7/Makefile.inc @@ -22,6 +22,6 @@ bootblock-y += timer.c romstage-y += timer.c ramstage-y += timer.c
-bootblock-$(CONFIG_EARLY_CONSOLE) += uart.c +bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += uart.c romstage-$(CONFIG_EARLY_CONSOLE) += uart.c ramstage-y += uart.c