avr32: add atngw100mkii board

This patch is derived from an older patch provided by atmel in its
buildroot-avr32-v3.0.0.tar.bz2

Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>

1 files changed, 156 insertions, 0 deletions

diff --git a/board/atmel/atngw100mkii/atngw100mkii.c b/board/atmel/atngw100mkii/atngw100mkii.c
new file mode 100644
index 0000000000..f4023b3eef
--- /dev/null
+++ b/board/atmel/atngw100mkii/atngw100mkii.c
@@ -0,0 +1,156 @@
+/*
+ * Copyright (C) 2010 Atmel Corporation
+ *
+ * Copyright (C) 2012 Andreas Bießmann <andreas.devel@googlemail.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 <spi.h>
+#include <netdev.h>
+
+#include <asm/io.h>
+#include <asm/sdram.h>
+#include <asm/arch/clk.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/hmatrix.h>
+#include <asm/arch/mmu.h>
+#include <asm/arch/portmux.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct mmu_vm_range mmu_vmr_table[CONFIG_SYS_NR_VM_REGIONS] = {
+	{
+		/* Atmel AT49BV640D 8 MiB x16 NOR flash on NCS0 */
+		.virt_pgno	= CONFIG_SYS_FLASH_BASE >> PAGE_SHIFT,
+		.nr_pages	= CONFIG_SYS_FLASH_SIZE >> PAGE_SHIFT,
+		.phys		= (CONFIG_SYS_FLASH_BASE >> PAGE_SHIFT)
+					| MMU_VMR_CACHE_NONE,
+	}, {
+		/* Micron MT29F2G16AAD 256 MiB x16 NAND flash on NCS3 */
+		.virt_pgno	= EBI_SRAM_CS3_BASE >> PAGE_SHIFT,
+		.nr_pages	= EBI_SRAM_CS3_SIZE >> PAGE_SHIFT,
+		.phys		= (EBI_SRAM_CS3_BASE >> PAGE_SHIFT)
+					| MMU_VMR_CACHE_NONE,
+	}, {
+		/* 2x16-bit ISSI IS42S16320B 64 MiB SDRAM (128 MiB total) */
+		.virt_pgno	= CONFIG_SYS_SDRAM_BASE >> PAGE_SHIFT,
+		.nr_pages	= EBI_SDRAM_SIZE >> PAGE_SHIFT,
+		.phys		= (CONFIG_SYS_SDRAM_BASE >> PAGE_SHIFT)
+					| MMU_VMR_CACHE_WRBACK,
+	},
+};
+
+static const struct sdram_config sdram_config = {
+	.data_bits	= SDRAM_DATA_32BIT,
+	.row_bits	= 13,
+	.col_bits	= 10,
+	.bank_bits	= 2,
+	.cas		= 3,
+	.twr		= 2,
+	.trc		= 7,
+	.trp		= 2,
+	.trcd		= 2,
+	.tras		= 5,
+	.txsr		= 6,
+	/* 7.81 us */
+	.refresh_period	= (781 * (SDRAMC_BUS_HZ / 1000)) / 100000,
+};
+
+int board_early_init_f(void)
+{
+	/* Enable SDRAM in the EBI mux */
+	hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE)
+			| HMATRIX_BIT(EBI_NAND_ENABLE));
+
+	portmux_enable_ebi(32, 23, PORTMUX_EBI_NAND,
+			PORTMUX_DRIVE_HIGH);
+	portmux_select_gpio(PORTMUX_PORT_E, 1 << 23,
+			PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH
+			| PORTMUX_DRIVE_MIN);
+	portmux_enable_usart1(PORTMUX_DRIVE_MIN);
+
+#if defined(CONFIG_MACB)
+	portmux_enable_macb0(PORTMUX_MACB_MII, PORTMUX_DRIVE_HIGH);
+	portmux_enable_macb1(PORTMUX_MACB_MII, PORTMUX_DRIVE_HIGH);
+#endif
+#if defined(CONFIG_MMC)
+	portmux_enable_mmci(0, PORTMUX_MMCI_4BIT, PORTMUX_DRIVE_LOW);
+#endif
+#if defined(CONFIG_ATMEL_SPI)
+	portmux_enable_spi0(1 << 0, PORTMUX_DRIVE_LOW);
+#endif
+
+	return 0;
+}
+
+phys_size_t initdram(int board_type)
+{
+	unsigned long expected_size;
+	unsigned long actual_size;
+	void *sdram_base;
+
+	sdram_base = uncached(EBI_SDRAM_BASE);
+
+	expected_size = sdram_init(sdram_base, &sdram_config);
+	actual_size = get_ram_size(sdram_base, expected_size);
+
+	if (expected_size != actual_size)
+		printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
+				actual_size >> 20, expected_size >> 20);
+
+	return actual_size;
+}
+
+int board_early_init_r(void)
+{
+	gd->bd->bi_phy_id[0] = 0x01;
+	gd->bd->bi_phy_id[1] = 0x03;
+	return 0;
+}
+
+#ifdef CONFIG_CMD_NET
+int board_eth_init(bd_t *bi)
+{
+	macb_eth_initialize(0, (void *)ATMEL_BASE_MACB0, bi->bi_phy_id[0]);
+	macb_eth_initialize(1, (void *)ATMEL_BASE_MACB1, bi->bi_phy_id[1]);
+	return 0;
+}
+#endif
+
+/* SPI chip select control */
+#ifdef CONFIG_ATMEL_SPI
+#define ATNGW100_DATAFLASH_CS_PIN	GPIO_PIN_PA(3)
+
+int spi_cs_is_valid(unsigned int bus, unsigned int cs)
+{
+	return bus == 0 && cs == 0;
+}
+
+void spi_cs_activate(struct spi_slave *slave)
+{
+	gpio_set_value(ATNGW100_DATAFLASH_CS_PIN, 0);
+}
+
+void spi_cs_deactivate(struct spi_slave *slave)
+{
+	gpio_set_value(ATNGW100_DATAFLASH_CS_PIN, 1);
+}
+#endif /* CONFIG_ATMEL_SPI */