ARM : Add support for MINI2440 (s3c2440).

Support of the MINI2440 board from FriendlyARM from
an old version of u-boot :
http://repo.or.cz/r/u-boot-openmoko/mini2440.git

Currently, supporting only boot from NOR.

Signed-off-by: Gabriel Huau <contact@huau-gabriel.fr>

1 files changed, 134 insertions, 0 deletions

diff --git a/board/friendlyarm/mini2440/mini2440.c b/board/friendlyarm/mini2440/mini2440.c
new file mode 100644
index 0000000..e97d981
--- /dev/null
+++ b/board/friendlyarm/mini2440/mini2440.c
@@ -0,0 +1,134 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * David Mueller, ELSOFT AG, <d.mueller@elsoft.ch>
+ *
+ * (C) Copyright 2009
+ * Michel Pollet <buserror@gmail.com>
+ *
+ * (C) Copyright 2012
+ * Gabriel Huau <contact@huau-gabriel.fr>
+ *
+ * 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/s3c2440.h>
+#include <asm/arch/iomux.h>
+#include <asm/arch/gpio.h>
+#include <asm/io.h>
+#include <asm/gpio.h>
+#include <netdev.h>
+#include "mini2440.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static inline void pll_delay(unsigned long loops)
+{
+	__asm__ volatile ("1:\n"
+	  "subs %0, %1, #1\n"
+	  "bne 1b" : "=r" (loops) : "0" (loops));
+}
+
+int board_early_init_f(void)
+{
+	struct s3c24x0_clock_power * const clk_power =
+					s3c24x0_get_base_clock_power();
+
+	/* to reduce PLL lock time, adjust the LOCKTIME register */
+	clk_power->locktime = 0xFFFFFF; /* Max PLL Lock time count */
+	clk_power->clkdivn = CLKDIVN_VAL;
+
+	/* configure UPLL */
+	clk_power->upllcon = ((U_M_MDIV << 12) + (U_M_PDIV << 4) + U_M_SDIV);
+	/* some delay between MPLL and UPLL */
+	pll_delay(100);
+
+	/* configure MPLL */
+	clk_power->mpllcon = ((M_MDIV << 12) + (M_PDIV << 4) + M_SDIV);
+
+	/* some delay between MPLL and UPLL */
+	pll_delay(10000);
+
+	return 0;
+}
+
+/*
+ * Miscellaneous platform dependent initialisations
+ */
+int board_init(void)
+{
+	struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio();
+
+	/* IOMUX Port H : UART Configuration */
+	gpio->gphcon = IOMUXH_nCTS0 | IOMUXH_nRTS0 | IOMUXH_TXD0 | IOMUXH_RXD0 |
+		IOMUXH_TXD1 | IOMUXH_RXD1 | IOMUXH_TXD2 | IOMUXH_RXD2;
+
+	gpio_direction_output(GPH8, 0);
+	gpio_direction_output(GPH9, 0);
+	gpio_direction_output(GPH10, 0);
+
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = CONFIG_BOOT_PARAM_ADDR;
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	struct s3c24x0_memctl *memctl = s3c24x0_get_base_memctl();
+
+	/*
+	 * Configuring bus width and timing
+	 * Initialize clocks for each bank 0..5
+	 * Bank 3 and 4 are used for DM9000
+	 */
+	writel(BANK_CONF, &memctl->bwscon);
+	writel(B0_CONF, &memctl->bankcon[0]);
+	writel(B1_CONF, &memctl->bankcon[1]);
+	writel(B2_CONF, &memctl->bankcon[2]);
+	writel(B3_CONF, &memctl->bankcon[3]);
+	writel(B4_CONF, &memctl->bankcon[4]);
+	writel(B5_CONF, &memctl->bankcon[5]);
+
+	/* Bank 6 and 7 are used for DRAM */
+	writel(SDRAM_64MB, &memctl->bankcon[6]);
+	writel(SDRAM_64MB, &memctl->bankcon[7]);
+
+	writel(MEM_TIMING, &memctl->refresh);
+	writel(BANKSIZE_CONF, &memctl->banksize);
+	writel(B6_MRSR, &memctl->mrsrb6);
+	writel(B7_MRSR, &memctl->mrsrb7);
+
+	gd->ram_size = get_ram_size((void *) CONFIG_SYS_SDRAM_BASE,
+			PHYS_SDRAM_SIZE);
+	return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+#ifdef CONFIG_DRIVER_DM9000
+	return dm9000_initialize(bis);
+#else
+	return 0;
+#endif
+}