From cba69eeeaa67d3fb93ec6f3abab1f653abf895a9 Mon Sep 17 00:00:00 2001
From: Ian Campbell <ijc@hellion.org.uk>
Date: Mon, 5 May 2014 11:52:26 +0100
Subject: sunxi: add sun7i cpu, board and start of day support
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This patch adds generic board, start of day and basic build system support for
the Allwinner A20 (sun7i) processor. This code will not been compiled until the
build is hooked up in a later patch. It has been split out to keep the patches
manageable.

Signed-off-by: Adam Sampson <ats@offog.org>
Signed-off-by: Aleksei Mamlin <mamlinav@gmail.com>
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Henrik Nordstrom <henrik@henriknordstrom.net>
Signed-off-by: Jens Kuske <jenskuske@gmail.com>
Signed-off-by: Luc Verhaegen <libv@skynet.be>
Signed-off-by: Luke Leighton <lkcl@lkcl.net>
Signed-off-by: Oliver Schinagl <oliver@schinagl.nl>
Signed-off-by: Patrick Wood <patrickhwood@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Wills Wang <wills.wang.open@gmail.com>
Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Reviewed-by: Marek Vasut <marex@denx.de>
Cc: Tom Cubie <Mr.hipboi@gmail.com>
Reviewed-by: Tom Rini <trini@ti.com>
---
 board/sunxi/Makefile | 11 ++++++++++
 board/sunxi/board.c  | 57 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 68 insertions(+)
 create mode 100644 board/sunxi/Makefile
 create mode 100644 board/sunxi/board.c

(limited to 'board/sunxi')

diff --git a/board/sunxi/Makefile b/board/sunxi/Makefile
new file mode 100644
index 0000000..559112e
--- /dev/null
+++ b/board/sunxi/Makefile
@@ -0,0 +1,11 @@
+#
+# (C) Copyright 2012 Henrik Nordstrom <henrik@henriknordstrom.net>
+#
+# Based on some other board Makefile
+#
+# (C) Copyright 2000-2003
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+obj-y	+= board.o
diff --git a/board/sunxi/board.c b/board/sunxi/board.c
new file mode 100644
index 0000000..328334a
--- /dev/null
+++ b/board/sunxi/board.c
@@ -0,0 +1,57 @@
+/*
+ * (C) Copyright 2012-2013 Henrik Nordstrom <henrik@henriknordstrom.net>
+ * (C) Copyright 2013 Luke Kenneth Casson Leighton <lkcl@lkcl.net>
+ *
+ * (C) Copyright 2007-2011
+ * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
+ * Tom Cubie <tangliang@allwinnertech.com>
+ *
+ * Some board init for the Allwinner A10-evb board.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/dram.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* add board specific code here */
+int board_init(void)
+{
+	int id_pfr1;
+
+	gd->bd->bi_boot_params = (PHYS_SDRAM_0 + 0x100);
+
+	asm volatile("mrc p15, 0, %0, c0, c1, 1" : "=r"(id_pfr1));
+	debug("id_pfr1: 0x%08x\n", id_pfr1);
+	/* Generic Timer Extension available? */
+	if ((id_pfr1 >> 16) & 0xf) {
+		debug("Setting CNTFRQ\n");
+		/* CNTFRQ == 24 MHz */
+		asm volatile("mcr p15, 0, %0, c14, c0, 0" : : "r"(24000000));
+	}
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	gd->ram_size = get_ram_size((long *)PHYS_SDRAM_0, PHYS_SDRAM_0_SIZE);
+
+	return 0;
+}
+
+#ifdef CONFIG_SPL_BUILD
+void sunxi_board_init(void)
+{
+	unsigned long ramsize;
+
+	printf("DRAM:");
+	ramsize = sunxi_dram_init();
+	printf(" %lu MiB\n", ramsize >> 20);
+	if (!ramsize)
+		hang();
+}
+#endif
-- 
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