arm:exynos4:samsung Support for NURI target

This patch adds support for Samsung's Exynos4 (C210) Nuri reference board.

New exynos4_nuri board has been added to boards.cfg

Signed-off-by Lukasz Majewski <[email protected]>

Signed-off-by Kyungmin Park <[email protected]>

Cc Minkyu Kang <[email protected]>

---
Checkpatch output:
total: 0 errors, 0 warnings, 891 lines checked

---
 board/samsung/nuri/Makefile        |   45 ++++
 board/samsung/nuri/lowlevel_init.S |  395 ++++++++++++++++++++++++++++++++++++
 board/samsung/nuri/nuri.c          |  237 +++++++++++++++++++++
 boards.cfg                         |    1 +
 include/configs/exynos4_nuri.h     |  207 +++++++++++++++++++
 5 files changed, 885 insertions(+), 0 deletions(-)
 create mode 100644 board/samsung/nuri/Makefile
 create mode 100644 board/samsung/nuri/lowlevel_init.S
 create mode 100644 board/samsung/nuri/nuri.c
 create mode 100644 include/configs/exynos4_nuri.h

board/samsung/nuri/nuri.c new file +40 -0

new file mode 100644
index 0000000..6cf126b
@@ -0,0 +1,237 @@
+/*
+ *  Copyright (C) 2011 Samsung Electronics
+ *  Minkyu Kang <[email protected]>
+ *  Kyungmin Park <[email protected]>
+ *  ?ukasz Majewski <[email protected]>
+ *
+ * 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/io.h>
+#include <asm/arch/adc.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/mmc.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct s5pc210_gpio_part1 *gpio1;
+struct s5pc210_gpio_part2 *gpio2;
+unsigned int board_rev;
+
+u32 get_board_rev(void)
+{
+	return board_rev;

board/samsung/nuri/nuri.c new file +35 -0

+	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+
+	check_hw_revision();
+	printf("HW Revision:\t0x%x\n", board_rev);
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	gd->ram_size = \
+		get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE) +
+		get_ram_size((long *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE) +
+		get_ram_size((long *)PHYS_SDRAM_3, PHYS_SDRAM_3_SIZE) +
+		get_ram_size((long *)PHYS_SDRAM_4, PHYS_SDRAM_4_SIZE);
+
+	return 0;
+}
+
+void dram_init_banksize(void)
+{
+	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+	gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
+	gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
+	gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
+	gd->bd->bi_dram[2].start = PHYS_SDRAM_3;
+	gd->bd->bi_dram[2].size = PHYS_SDRAM_3_SIZE;
+	gd->bd->bi_dram[3].start = PHYS_SDRAM_4;
+	gd->bd->bi_dram[3].size = PHYS_SDRAM_4_SIZE;
+}
+
+static unsigned short get_adc_value(int channel)
+{
+	struct s5p_adc *adc = (struct s5p_adc *)samsung_get_base_adc();
+	unsigned short ret = 0;

board/samsung/nuri/nuri.c new file +38 -0

+
+	ret = readl(&adc->adcdat0) & 0xFFF;
+
+	return ret;
+}
+
+static unsigned int get_hw_revision(void)
+{
+	int hwrev, mode0, mode1;
+
+	mode0 = get_adc_value(1);		/* HWREV_MODE0 */
+	mode1 = get_adc_value(2);		/* HWREV_MODE1 */
+
+	/*
+	 * XXX Always set the default hwrev as the latest board
+	 * ADC = (voltage) / 3.3 * 4096
+	 */
+	hwrev = 3;
+
+#define IS_RANGE(x, min, max)	((x) > (min) && (x) < (max))
+	if (IS_RANGE(mode0, 80, 200) && IS_RANGE(mode1, 80, 200))
+		hwrev = 0x0;		/* 0.01V	0.01V */
+	if (IS_RANGE(mode0, 750, 1000) && IS_RANGE(mode1, 80, 200))
+		hwrev = 0x1;		/* 610mV	0.01V */
+	if (IS_RANGE(mode0, 1300, 1700) && IS_RANGE(mode1, 80, 200))
+		hwrev = 0x2;		/* 1.16V	0.01V */
+	if (IS_RANGE(mode0, 2000, 2400) && IS_RANGE(mode1, 80, 200))
+		hwrev = 0x3;		/* 1.79V	0.01V */
+#undef IS_RANGE
+
+	debug("mode0: %d, mode1: %d, hwrev 0x%x\n", mode0, mode1, hwrev);
+
+	return hwrev;
+}
+
+static void check_hw_revision(void)
+{
+	int hwrev;

board/samsung/nuri/nuri.c new file +24 -0

+	return 0;
+}
+#endif
+
+#ifdef CONFIG_GENERIC_MMC
+int board_mmc_init(bd_t *bis)
+{
+	int i, err;
+
+	/* MASSMEMORY_EN: GPL[1] -> output LOW */
+	s5p_gpio_direction_output(&gpio2->l1, 1, 0);
+	s5p_gpio_set_pull(&gpio2->l1, 1, GPIO_PULL_NONE);
+
+	/*
+	 * eMMC GPIO:
+	 * SDR 8-bit at 48MHz at MMC0
+	 * GPK0[0]	SD_0_CLK(2)
+	 * GPK0[1]	SD_0_CMD(2)
+	 * GPK0[2]	SD_0_CDn	-> Not used
+	 * GPK0[3:6]	SD_0_DATA[0:3](2)
+	 * GPK1[3:6]	SD_0_DATA[0:3](3)
+	 *
+	 * DDR 4-bit at 26MHz at MMC4
+	 * GPK0[0]	SD_4_CLK(3)

board/samsung/nuri/nuri.c new file +5 -0

+		/* GPK1[3:6] pull disable */
+		s5p_gpio_set_pull(&gpio2->k1, i, GPIO_PULL_NONE);
+		/* GPK1[3:6] drv 4x */
+		s5p_gpio_set_drv(&gpio2->k1, i, GPIO_DRV_4X);
+	}

board/samsung/nuri/nuri.c new file +9 -0

+	s5p_gpio_set_pull(&gpio2->x3, 3, GPIO_PULL_UP);
+
+	/*
+	 * Check the T-flash  detect pin
+	 * GPX3[3] T-flash detect pin
+	 */
+	if (!s5p_gpio_get_value(&gpio2->x3, 3)) {
+		/*
+		 * SD card GPIO: