Merge branch 'master-sync' of git://git.denx.de/u-boot-arm

1 files changed, 83 insertions, 0 deletions

diff --git a/board/samsung/smdkc100/onenand.c b/board/samsung/smdkc100/onenand.c
new file mode 100644
index 0000000..c25869e
--- /dev/null
+++ b/board/samsung/smdkc100/onenand.c
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2008-2009 Samsung Electronics
+ * Kyungmin Park <kyungmin.park@samsung.com>
+ *
+ * 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 <linux/mtd/compat.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/onenand.h>
+#include <linux/mtd/samsung_onenand.h>
+
+#include <onenand_uboot.h>
+
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+
+void onenand_board_init(struct mtd_info *mtd)
+{
+	struct onenand_chip *this = mtd->priv;
+	struct s5pc100_clock *clk = (struct s5pc100_clock *)S5PC1XX_CLOCK_BASE;
+	struct samsung_onenand *onenand;
+	int value;
+
+	this->base = (void *)S5PC100_ONENAND_BASE;
+	onenand = (struct samsung_onenand *)this->base;
+
+	/* D0 Domain memory clock gating */
+	value = readl(&clk->gate_d01);
+	value &= ~(1 << 2);		/* CLK_ONENANDC */
+	value |= (1 << 2);
+	writel(value, &clk->gate_d01);
+
+	value = readl(&clk->src0);
+	value &= ~(1 << 24);		/* MUX_1nand: 0 from HCLKD0 */
+	value &= ~(1 << 20);		/* MUX_HREF: 0 from FIN_27M */
+	writel(value, &clk->src0);
+
+	value = readl(&clk->div1);
+	value &= ~(3 << 16);		/* PCLKD1_RATIO */
+	value |= (1 << 16);
+	writel(value, &clk->div1);
+
+	writel(ONENAND_MEM_RESET_COLD, &onenand->mem_reset);
+
+	while (!(readl(&onenand->int_err_stat) & RST_CMP))
+		continue;
+
+	writel(RST_CMP, &onenand->int_err_ack);
+
+	/*
+	 * Access_Clock [2:0]
+	 * 166 MHz, 134 Mhz : 3
+	 * 100 Mhz, 60 Mhz  : 2
+	 */
+	writel(0x3, &onenand->acc_clock);
+
+	writel(INT_ERR_ALL, &onenand->int_err_mask);
+	writel(1 << 0, &onenand->int_pin_en);	/* Enable */
+
+	value = readl(&onenand->int_err_mask);
+	value &= ~RDY_ACT;
+	writel(value, &onenand->int_err_mask);
+
+	s3c_onenand_init(mtd);
+}