armv7: Use same console initialization procedure for all ARM stages

Use same console initialization procedure for all ARM stages (bootblock,
romstage, and ramstage):

	#include <console/console.h>
	...
	console_init()
	...
	printk(level, format, ...)

Verified to boot on armv7/snow with console messages in all stages.

Change-Id: Idd689219035e67450ea133838a2ca02f8d74557e
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/2301
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

src/cpu/samsung/exynos5-common/uart.h

@@ -52,6 +52,4 @@ static inline int s5p_uart_divslot(void)
 	return 0;
 }
 
-void uart_init(void);
-
 #endif

src/cpu/samsung/exynos5250/Makefile.inc

@@ -10,7 +10,7 @@ bootblock-y += clock_init.c
 bootblock-y += clock.c
 bootblock-y += pinmux.c
 bootblock-y += soc.c
-bootblock-y += uart.c
+bootblock-$(CONFIG_EARLY_CONSOLE) += uart.c
 
 romstage-y += clock.c
 romstage-y += clock_init.c
@@ -18,23 +18,18 @@ romstage-y += exynos_cache.c
 romstage-y += pinmux.c
 romstage-y += power.c
 romstage-y += soc.c
-romstage-y += uart.c
 romstage-y += dmc_common.c
 romstage-y += dmc_init_ddr3.c
+romstage-$(CONFIG_EARLY_CONSOLE) += uart.c
 
-#ramstage-y += clock.c
-#ramstage-y += clock_init.c
-#ramstage-y += power.c
-#ramstage-y += uart.c
-#ramstage-y += pinmux.c
-##ramstage-y += tzpc_init.c
+#ramstage-y += tzpc_init.c
 ramstage-y += clock.c
 ramstage-y += clock_init.c
 ramstage-y += exynos_cache.c
 ramstage-y += pinmux.c
 ramstage-y += power.c
 ramstage-y += soc.c
-ramstage-y += uart.c
+ramstage-$(CONFIG_CONSOLE_SERIAL_UART) += uart.c
 
 #ramstage-$(CONFIG_EXYNOS_ACE_SHA) += ace_sha.c
 #ramstage-$(CONFIG_SATA_AHCI) += sata.c

src/cpu/samsung/exynos5250/uart.c

@@ -28,6 +28,8 @@
 #include <console/console.h>	/* for __console definition */
 
 #include <cpu/samsung/exynos5-common/exynos5-common.h>
+#include <cpu/samsung/exynos5-common/uart.h>
+#include <cpu/samsung/exynos5250/uart.h>
 #include <cpu/samsung/exynos5250/clk.h>
 
 #define RX_FIFO_COUNT_MASK	0xff
@@ -191,7 +193,7 @@ static void exynos5_uart_tx_byte(unsigned char data)
 	writeb(data, &uart->utxh);
 }
 
-#if !defined(__PRE_RAM__) && !defined(__BOOT_BLOCK__)
+#if !defined(__PRE_RAM__)
 static const struct console_driver exynos5_uart_console __console = {
 	.init     = exynos5_init_dev,
 	.tx_byte  = exynos5_uart_tx_byte,