devkit3250: add Timll DevKit3250 board initial support

This change adds a basic support for Embest/Timll DevKit3250 board,
NOR and UART are the only supported peripherals for a moment. The board
doesn't require low-level init, because the initial SDRAM and GPIO
configuration is performed during kickstart bootloader execution.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Acked-by: Marek Vasut <marek.vasut@gmail.com>

1 files changed, 65 insertions, 0 deletions

diff --git a/board/timll/devkit3250/devkit3250.c b/board/timll/devkit3250/devkit3250.c
new file mode 100644
index 0000000..6b0ec80
--- /dev/null
+++ b/board/timll/devkit3250/devkit3250.c
@@ -0,0 +1,65 @@
+/*
+ * Embest/Timll DevKit3250 board support
+ *
+ * Copyright (C) 2011 Vladimir Zapolskiy <vz@mleia.com>
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+#include <common.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/emc.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static struct emc_regs *emc = (struct emc_regs *)EMC_BASE;
+
+int board_early_init_f(void)
+{
+	lpc32xx_uart_init(CONFIG_SYS_LPC32XX_UART);
+
+	return 0;
+}
+
+int board_init(void)
+{
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params  = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+#ifdef CONFIG_SYS_FLASH_CFI
+	/* Use 16-bit memory interface for NOR Flash */
+	emc->stat[0].config	= EMC_STAT_CONFIG_PB | EMC_STAT_CONFIG_16BIT;
+
+	/* Change the NOR timings to optimum value to get maximum bandwidth */
+	emc->stat[0].waitwen	= EMC_STAT_WAITWEN(1);
+	emc->stat[0].waitoen	= EMC_STAT_WAITOEN(1);
+	emc->stat[0].waitrd	= EMC_STAT_WAITRD(12);
+	emc->stat[0].waitpage	= EMC_STAT_WAITPAGE(12);
+	emc->stat[0].waitwr	= EMC_STAT_WAITWR(5);
+	emc->stat[0].waitturn	= EMC_STAT_WAITTURN(2);
+#endif
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
+				    CONFIG_SYS_SDRAM_SIZE);
+
+	return 0;
+}