avr32: add grasshopper (ICnova AP7000) board

[karo-tx-uboot.git] / board / in-circuit / grasshopper / grasshopper.c

diff --git a/board/in-circuit/grasshopper/grasshopper.c b/board/in-circuit/grasshopper/grasshopper.c
new file mode 100644 (file)
index 0000000..475a759
--- /dev/null
+++ b/board/in-circuit/grasshopper/grasshopper.c
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2011
+ * Corscience GmbH & Co.KG, Andreas Bießmann <biessmann@corscience.de>
+ *
+ * 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/io.h>
+#include <asm/sdram.h>
+#include <asm/arch/clk.h>
+#include <asm/arch/hmatrix.h>
+#include <asm/arch/mmu.h>
+#include <asm/arch/portmux.h>
+#include <netdev.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct mmu_vm_range mmu_vmr_table[CONFIG_SYS_NR_VM_REGIONS] = {
+       {
+               .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,
+       }, {
+               .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 = {
+       /* Dual MT48LC16M16A2-7E (or equal) */
+       .data_bits              = SDRAM_DATA_32BIT,
+       .row_bits               = 13,
+       .col_bits               = 9,
+       .bank_bits              = 2,
+       .cas                    = 2,
+       .twr                    = 2,
+       .trc                    = 7,
+       .trp                    = 2,
+       .trcd                   = 2,
+       .tras                   = 4,
+       .txsr                   = 7,
+       /* 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));
+
+       portmux_enable_ebi(SDRAM_DATA_32BIT, 23, 0, PORTMUX_DRIVE_HIGH);
+       portmux_enable_usart0(PORTMUX_DRIVE_MIN);
+       portmux_enable_usart1(PORTMUX_DRIVE_MIN);
+#if defined(CONFIG_MACB)
+       portmux_enable_macb0(PORTMUX_MACB_MII, 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] = 0x00;
+       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]);
+       return 0;
+}
+#endif
+/* vim: set noet ts=8: */