SPEAr : Support added for SPEAr600 board

SPEAr600 SoC support contains basic spear600 support along with the
usage of following drivers
- serial driver(UART)
- i2c driver
- smi driver
- nand driver(FSMC)
- usbd driver

Signed-off-by: Vipin <vipin.kumar@st.com>

1 files changed, 171 insertions, 0 deletions

diff --git a/board/spear/common/spr_misc.c b/board/spear/common/spr_misc.c
new file mode 100755
index 00000000000..dfa3ece4b36
--- /dev/null
+++ b/board/spear/common/spr_misc.c
@@ -0,0 +1,171 @@
+/*
+ * (C) Copyright 2009
+ * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.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 <command.h>
+#include <i2c.h>
+#include <net.h>
+#include <asm/io.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/spr_xloader_table.h>
+#include <asm/arch/spr_defs.h>
+
+#define CPU		0
+#define DDR		1
+#define SRAM_REL	0xD2801000
+
+DECLARE_GLOBAL_DATA_PTR;
+static struct chip_data chip_data;
+
+int dram_init(void)
+{
+	struct xloader_table *xloader_tb =
+	    (struct xloader_table *)XLOADER_TABLE_ADDRESS;
+	struct xloader_table_1_1 *table_1_1;
+	struct xloader_table_1_2 *table_1_2;
+	struct chip_data *chip = &chip_data;
+
+	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+	gd->bd->bi_dram[0].size = get_ram_size(PHYS_SDRAM_1,
+					       PHYS_SDRAM_1_MAXSIZE);
+
+	if (XLOADER_TABLE_VERSION_1_1 == xloader_tb->table_version) {
+		table_1_1 = &xloader_tb->table.table_1_1;
+		chip->dramfreq = table_1_1->ddrfreq;
+		chip->dramtype = table_1_1->ddrtype;
+
+	} else if (XLOADER_TABLE_VERSION_1_2 == xloader_tb->table_version) {
+		table_1_2 = &xloader_tb->table.table_1_2;
+		chip->dramfreq = table_1_2->ddrfreq;
+		chip->dramtype = table_1_2->ddrtype;
+	} else {
+		chip->dramfreq = -1;
+	}
+
+	return 0;
+}
+
+int misc_init_r(void)
+{
+	setenv("verify", "n");
+
+#if defined(CONFIG_SPEAR_USBTTY)
+	setenv("stdin", "usbtty");
+	setenv("stdout", "usbtty");
+	setenv("stderr", "usbtty");
+#endif
+	return 0;
+}
+
+int spear_board_init(ulong mach_type)
+{
+	struct xloader_table *xloader_tb =
+	    (struct xloader_table *)XLOADER_TABLE_ADDRESS;
+	struct xloader_table_1_2 *table_1_2;
+	struct chip_data *chip = &chip_data;
+
+	gd->bd->bi_arch_number = mach_type;
+
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = CONFIG_BOOT_PARAMS_ADDR;
+
+	/* CPU is initialized to work at 333MHz in Xloader */
+	chip->cpufreq = 333;
+
+	if (XLOADER_TABLE_VERSION_1_2 == xloader_tb->table_version) {
+		table_1_2 = &xloader_tb->table.table_1_2;
+		memcpy(chip->version, table_1_2->version,
+		       sizeof(chip->version));
+	}
+
+	return 0;
+}
+
+int do_chip_config(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	void (*sram_setfreq) (unsigned int, unsigned int);
+	struct chip_data *chip = &chip_data;
+	unsigned char mac[6];
+	unsigned int frequency;
+
+	if ((argc > 3) || (argc < 2)) {
+		cmd_usage(cmdtp);
+		return 1;
+	}
+
+	if ((!strcmp(argv[1], "cpufreq")) || (!strcmp(argv[1], "ddrfreq"))) {
+
+		frequency = simple_strtoul(argv[2], NULL, 0);
+
+		if (frequency > 333) {
+			printf("Frequency is limited to 333MHz\n");
+			return 1;
+		}
+
+		sram_setfreq = memcpy((void *)SRAM_REL, setfreq, setfreq_sz);
+
+		if (!strcmp(argv[1], "cpufreq")) {
+			sram_setfreq(CPU, frequency);
+			printf("CPU frequency changed to %u\n", frequency);
+
+			chip->cpufreq = frequency;
+		} else {
+			sram_setfreq(DDR, frequency);
+			printf("DDR frequency changed to %u\n", frequency);
+
+			chip->dramfreq = frequency;
+		}
+
+		return 0;
+	} else if (!strcmp(argv[1], "print")) {
+
+		if (chip->cpufreq == -1)
+			printf("CPU Freq    = Not Known\n");
+		else
+			printf("CPU Freq    = %d MHz\n", chip->cpufreq);
+
+		if (chip->dramfreq == -1)
+			printf("DDR Freq    = Not Known\n");
+		else
+			printf("DDR Freq    = %d MHz\n", chip->dramfreq);
+
+		if (chip->dramtype == DDRMOBILE)
+			printf("DDR Type    = MOBILE\n");
+		else if (chip->dramtype == DDR2)
+			printf("DDR Type    = DDR2\n");
+		else
+			printf("DDR Type    = Not Known\n");
+
+		printf("Xloader Rev = %s\n", chip->version);
+
+		return 0;
+	}
+
+	cmd_usage(cmdtp);
+	return 1;
+}
+
+U_BOOT_CMD(chip_config, 3, 1, do_chip_config,
+	   "configure chip",
+	   "chip_config cpufreq/ddrfreq frequency\n"
+	   "chip_config print");