pit: Create an exynos5420 directory which is nearly a copy of exynos5250.

This change creates an exynos5420 directory with code that will eventually
implement support for the exynos5420 cpu from Samsung. Currently it's a copy
of the exynos5250 directory with the name changed. There are going to be some
problems where headers in src/cpu/samsung/exynos-common include headers in the
exynos5250 directory directly.

Change-Id: Ia8d7244310d32499238bbc171c0c668ec48178e1
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3644
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/src/cpu/samsung/exynos5420/Makefile.inc b/src/cpu/samsung/exynos5420/Makefile.inc
new file mode 100644
index 0000000..c3416c4
--- /dev/null
+++ b/src/cpu/samsung/exynos5420/Makefile.inc
@@ -0,0 +1,55 @@
+# Run an intermediate step when producing coreboot.rom
+# that adds additional components to the final firmware
+# image outside of CBFS
+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-y += wakeup.c
+bootblock-y += gpio.c
+bootblock-$(CONFIG_EARLY_CONSOLE) += pwm.c
+bootblock-$(CONFIG_EARLY_CONSOLE) += timer.c
+
+romstage-y += spi.c
+romstage-y += clock.c
+romstage-y += clock_init.c
+romstage-y += pinmux.c  # required by s3c24x0_i2c and uart.
+romstage-y += dmc_common.c
+romstage-y += dmc_init_ddr3.c
+romstage-y += power.c
+romstage-y += mct.c
+romstage-y += monotonic_timer.c
+romstage-$(CONFIG_EARLY_CONSOLE) += uart.c
+romstage-y += wakeup.c
+romstage-y += pwm.c	# needed by timer.c
+romstage-y += gpio.c
+romstage-y += timer.c
+romstage-y += i2c.c
+#romstage-y += wdt.c
+
+ramstage-y += spi.c
+ramstage-y += clock.c
+ramstage-y += clock_init.c
+ramstage-y += pinmux.c
+ramstage-y += power.c
+ramstage-$(CONFIG_CONSOLE_SERIAL_UART) += uart.c
+ramstage-y += cpu.c
+ramstage-y += tmu.c
+ramstage-y += mct.c
+ramstage-y += monotonic_timer.c
+ramstage-y += pwm.c	# needed by timer.c
+ramstage-y += timer.c
+ramstage-y += gpio.c
+ramstage-y += i2c.c
+ramstage-y += dp-reg.c
+ramstage-y += fb.c
+
+exynos5420_add_bl1: $(obj)/coreboot.pre
+	printf "    DD         Adding Samsung Exynos5420 BL1\n"
+	dd if=3rdparty/cpu/samsung/exynos5420/bl1.bin \
+		of=$(obj)/coreboot.pre conv=notrunc >/dev/null 2>&1