Patchwork [U-Boot,02/10,V6] SMDK5250: SPL: Define parametric board initializer

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Submitter Rajeshwari Birje
Date July 4, 2012, 6:02 a.m.
Message ID <1341381780-2725-3-git-send-email-rajeshwari.s@samsung.com>
Download mbox | patch
Permalink /patch/168892/
State Accepted
Delegated to: Minkyu Kang
Headers show

Comments

Rajeshwari Birje - July 4, 2012, 6:02 a.m.
Define table-driven configuration mechanism for SMDK5250
rather than hard-coding board initialization parameters.

Signed-off-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Tom Wai-Hong Tam <waihong@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
---
Changes in V2:
        - None
Changes in V3:
        - None
Changes in V4:
        - None
Changes in V5:
        - None
Changes in V6:
	- None
 board/samsung/smdk5250/Makefile       |    1 +
 board/samsung/smdk5250/smdk5250_spl.c |   68 +++++++++++++++++++++++++++++++++
 2 files changed, 69 insertions(+), 0 deletions(-)
 create mode 100644 board/samsung/smdk5250/smdk5250_spl.c

Patch

diff --git a/board/samsung/smdk5250/Makefile b/board/samsung/smdk5250/Makefile
index 226db1f..3675fad 100644
--- a/board/samsung/smdk5250/Makefile
+++ b/board/samsung/smdk5250/Makefile
@@ -29,6 +29,7 @@  SOBJS	:= lowlevel_init.o
 COBJS	:= clock_init.o
 COBJS	+= dmc_init.o
 COBJS	+= tzpc_init.o
+COBJS	+= smdk5250_spl.o
 
 ifndef CONFIG_SPL_BUILD
 COBJS	+= smdk5250.o
diff --git a/board/samsung/smdk5250/smdk5250_spl.c b/board/samsung/smdk5250/smdk5250_spl.c
new file mode 100644
index 0000000..1d453ca
--- /dev/null
+++ b/board/samsung/smdk5250/smdk5250_spl.c
@@ -0,0 +1,68 @@ 
+/*
+ * Copyright (c) 2012 The Chromium OS Authors.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/spl.h>
+#include <asm/arch/clk.h>
+
+#define SIGNATURE	0xdeadbeef
+
+/* Parameters of early board initialization in SPL */
+static struct spl_machine_param machine_param
+		__attribute__((section(".machine_param"))) = {
+	.signature	= SIGNATURE,
+	.version	= 1,
+	.params		= "vmubfasirM",
+	.size		= sizeof(machine_param),
+
+	.mem_iv_size	= 0x1f,
+	.mem_type	= DDR_MODE_DDR3,
+
+	/*
+	 * Set uboot_size to 0x100000 bytes.
+	 *
+	 * This is an overly conservative value chosen to accommodate all
+	 * possible U-Boot image.  You are advised to set this value to a
+	 * smaller realistic size via scripts that modifies the .machine_param
+	 * section of output U-Boot image.
+	 */
+	.uboot_size	= 0x100000,
+
+	.boot_source	= BOOT_MODE_OM,
+	.frequency_mhz	= 800,
+	.arm_freq_mhz	= 1700,
+	.serial_base	= 0x12c30000,
+	.i2c_base	= 0x12c60000,
+	.mem_manuf	= MEM_MANUF_SAMSUNG,
+};
+
+struct spl_machine_param *spl_get_machine_params(void)
+{
+	if (machine_param.signature != SIGNATURE) {
+		/* Will hang if SIGNATURE dont match */
+		while (1)
+			;
+	}
+
+	return &machine_param;
+}