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/arch/armv7/Makefile.inc

@@ -223,17 +223,18 @@ $(objgenerated)/bootblock_inc.S: $$(bootblock_inc)
 
 $(objgenerated)/bootblock.o: $(objgenerated)/bootblock.s
 	@printf "    CC         $(subst $(obj)/,,$(@))\n"
-	$(CC) -Wa,-acdlns -c -o $@ $<  > $(basename $@).disasm
+	$(CC) $(bootblock-S-ccopts) -Wa,-acdlns -c -o $@ $<  > $(basename $@).disasm
 
 $(objgenerated)/bootblock.s: $(objgenerated)/bootblock_inc.S $(obj)/config.h $(obj)/build.h
 	@printf "    CC         $(subst $(obj)/,,$(@))\n"
-	$(CC) -MMD -x assembler-with-cpp -E -I$(src)/include -I$(src)/arch/armv7/include -I$(obj) -include $(obj)/build.h -include $(obj)/config.h -I. -I$(src) $< -o $@
+	$(CC) $(bootblock-S-ccopts) -MMD -x assembler-with-cpp -E -I$(src)/include -I$(src)/arch/armv7/include -I$(obj) -include $(obj)/build.h -include $(obj)/config.h -I. -I$(src) $< -o $@
 
 $(objgenerated)/bootblock.inc: $(src)/arch/armv7/$(subst ",,$(CONFIG_BOOTBLOCK_SOURCE)) $(bootblock_custom) $(OPTION_TABLE_H)
 	@printf "    CC      $(subst $(obj)/,,$(@))\n"
-	$(CC) $(INCLUDES) -MM -MT$(objgenerated)/bootblock.inc \
+	$(CC) $(bootblock-c-ccopts) $(INCLUDES) -MM \
+		-MT$(objgenerated)/bootblock.inc \
 		$< > $(objgenerated)/bootblock.inc.d
-	$(CC) -c -S $(CFLAGS) -I. $(INCLUDES) $< -o $@
+	$(CC) $(bootblock-c-ccopts) -c -S $(CFLAGS) -I. $(INCLUDES) $< -o $@
 
 $(objcbfs)/bootblock.debug:  $(objgenerated)/bootblock.o $(objgenerated)/bootblock.ld $$(bootblock-objs) $(stages)
 	@printf "    LINK       $(subst $(obj)/,,$(@))\n"

src/arch/armv7/bootblock_simple.c

@@ -23,6 +23,7 @@
 #include <arch/hlt.h>
 #include <arch/stages.h>
 #include <cbfs.h>
+#include <console/console.h>
 
 #include "stages.c"
 
@@ -46,6 +47,7 @@ void main(void)
 		bootblock_mainboard_init();
 	}
 
+	console_init();
 	printk(BIOS_INFO, "hello from bootblock\n");
 	printk(BIOS_INFO, "bootblock main(): loading romstage\n");
 	entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA, stage_name);

src/arch/armv7/include/common.h

@@ -422,19 +422,6 @@ int strcmp_compar(const void *, const void *);
 /* lib/time.c */
 void	udelay        (unsigned long);
 
-#if 0
-/* lib/vsprintf.c */
-ulong	simple_strtoul(const char *cp,char **endp,unsigned int base);
-int strict_strtoul(const char *cp, unsigned int base, unsigned long *res);
-unsigned long long	simple_strtoull(const char *cp,char **endp,unsigned int base);
-long	simple_strtol(const char *cp,char **endp,unsigned int base);
-void	panic(const char *fmt, ...)
-		__attribute__ ((format (__printf__, 1, 2), noreturn));
-int	sprintf(char * buf, const char *fmt, ...)
-		__attribute__ ((format (__printf__, 2, 3)));
-int	vsprintf(char *buf, const char *fmt, va_list args);
-#endif
-
 /* lib/strmhz.c */
 char *	strmhz(char *buf, unsigned long hz);
 

src/arch/armv7/lib/Makefile.inc

@@ -1,14 +1,12 @@
 bootblock-y += syslib.c
-bootblock-y += romstage_console.c
+bootblock-$(CONFIG_EARLY_CONSOLE) += early_console.c
 
 romstage-y += cache_v7.c
 romstage-y += cache-cp15.c
 romstage-y += div0.c
 romstage-y += div64.S
-romstage-y += romstage_console.c
 romstage-y += syslib.c
-
+romstage-$(CONFIG_EARLY_CONSOLE) += early_console.c
-#ramstage-y += printk_init.c
 
 ramstage-y += div0.c
 ramstage-y += div64.S

src/arch/armv7/lib/early_console.c

@@ -19,13 +19,6 @@
 
 #include <console/console.h>
 #include <console/vtxprintf.h>
-// TODO Unify with x86 (CONFIG_CONSOLE_SERIAL8250)
-#if CONFIG_CONSOLE_SERIAL
-#include <uart.h>
-#endif
-#if CONFIG_USBDEBUG
-#include <usbdebug.h>
-#endif
 
 /* FIXME: need to make console driver more generic */
 void console_tx_byte(unsigned char byte)
@@ -33,6 +26,15 @@ void console_tx_byte(unsigned char byte)
 	if (byte == '\n')
 		console_tx_byte('\r');
 
+#if CONFIG_CONSOLE_SERIAL8250MEM
+	if (oxford_oxpcie_present) {
+		uart8250_mem_tx_byte(
+			CONFIG_OXFORD_OXPCIE_BASE_ADDRESS + 0x1000, byte);
+	}
+#endif
+#if CONFIG_CONSOLE_SERIAL8250
+	uart8250_tx_byte(CONFIG_TTYS0_BASE, byte);
+#endif
 #if CONFIG_CONSOLE_SERIAL_UART
 	uart_tx_byte(byte);
 #endif
@@ -46,6 +48,12 @@ void console_tx_byte(unsigned char byte)
 
 static void _console_tx_flush(void)
 {
+#if CONFIG_CONSOLE_SERIAL8250MEM
+	uart8250_mem_tx_flush(CONFIG_OXFORD_OXPCIE_BASE_ADDRESS + 0x1000);
+#endif
+#if CONFIG_CONSOLE_SERIAL8250
+	uart8250_tx_flush(CONFIG_TTYS0_BASE);
+#endif
 #if CONFIG_CONSOLE_SERIAL_UART
 	uart_tx_flush();
 #endif

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 += tzpc_init.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 += 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,

src/include/uart.h

@@ -30,14 +30,11 @@
 #include <uart8250.h>
 #endif
 
-#if CONFIG_CPU_SAMSUNG_EXYNOS5
-#include <cpu/samsung/exynos5-common/uart.h>
-#endif
-
 #if !defined(__ROMCC__) && CONFIG_CONSOLE_SERIAL_UART
 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 */

src/mainboard/google/snow/bootblock.c

@@ -17,18 +17,18 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#if CONFIG_EARLY_CONSOLE
 #include <types.h>
 #include <arch/io.h>
-#include <cbfs.h>
+#include <device/i2c.h>
-#include <uart.h>
-#include <console/console.h>
 #include <cpu/samsung/exynos5250/clk.h>
 #include <cpu/samsung/exynos5250/dmc.h>
 #include <cpu/samsung/exynos5250/periph.h>
 #include <cpu/samsung/exynos5250/clock_init.h>
+#include <src/cpu/samsung/exynos5250/power.h>
+#include <drivers/maxim/max77686/max77686.h>
+#include <console/console.h>
 
-#endif
+#define I2C0_BASE	0x12c60000
 
 void bootblock_mainboard_init(void);
 void bootblock_mainboard_init(void)
@@ -39,10 +39,8 @@ void bootblock_mainboard_init(void)
 	mem = get_mem_timings();
 	arm_ratios = get_arm_clk_ratios();
 	system_clock_init(mem, arm_ratios);
-
-#if CONFIG_EARLY_CONSOLE
 	exynos_pinmux_config(PERIPH_ID_UART3, PINMUX_FLAG_NONE);
-	uart_init();
+
+	console_init();
 	printk(BIOS_INFO, "\n\n\n%s: UART initialized\n", __func__);
-#endif
 }

src/mainboard/google/snow/ramstage.c

@@ -24,9 +24,7 @@ void main(void)
 //	volatile unsigned long *pshold = (unsigned long *)0x1004330c;
 //	*pshold &= ~0x100;	/* shut down */
 
-	/* FIXME: console_init() seems to cause things to die... Maybe
+	console_init();
-	   we need to reset our stack pointer? */
-//	console_init();
 	printk(BIOS_INFO, "hello from ramstage\n");
 	while (1);
 }