summaryrefslogtreecommitdiff
path: root/board/miromico/hammerhead/hammerhead.c
diff options
context:
space:
mode:
authorWolfgang Denk <wd@denx.de>2008-08-21 00:41:03 +0200
committerWolfgang Denk <wd@denx.de>2008-08-21 00:41:03 +0200
commit9ba404dd59c14149f7a5338af1b5fe52558415da (patch)
tree2595376e4684ce3c88cf69468cc657c305823d1f /board/miromico/hammerhead/hammerhead.c
parentdb70b84329315c52f6ec77f5ae5ca1afe970a9bb (diff)
parent492671404140f09d5b21b3d2ce4e362c0692c069 (diff)
downloadu-boot-imx-9ba404dd59c14149f7a5338af1b5fe52558415da.zip
u-boot-imx-9ba404dd59c14149f7a5338af1b5fe52558415da.tar.gz
u-boot-imx-9ba404dd59c14149f7a5338af1b5fe52558415da.tar.bz2
Merge branch 'master' of git://git.denx.de/u-boot-avr32
Diffstat (limited to 'board/miromico/hammerhead/hammerhead.c')
-rw-r--r--board/miromico/hammerhead/hammerhead.c114
1 files changed, 114 insertions, 0 deletions
diff --git a/board/miromico/hammerhead/hammerhead.c b/board/miromico/hammerhead/hammerhead.c
new file mode 100644
index 0000000..738ece2
--- /dev/null
+++ b/board/miromico/hammerhead/hammerhead.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2008 Miromico AG
+ *
+ * Mostly copied form atmel ATNGW100 sources
+ *
+ * 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 "../cpu/at32ap/at32ap700x/sm.h"
+
+#include <common.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/memory-map.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const struct sdram_config sdram_config = {
+ .data_bits = SDRAM_DATA_32BIT,
+ .row_bits = 13,
+ .col_bits = 9,
+ .bank_bits = 2,
+ .cas = 3,
+ .twr = 2,
+ .trc = 7,
+ .trp = 2,
+ .trcd = 2,
+ .tras = 5,
+ .txsr = 5,
+ /* 7.81 us */
+ .refresh_period = (781 * (SDRAMC_BUS_HZ / 1000)) / 100000,
+};
+
+extern int macb_eth_initialize(int id, void *regs, unsigned int phy_addr);
+
+#ifdef CONFIG_CMD_NET
+int board_eth_init(bd_t *bis)
+{
+ return macb_eth_initialize(0, (void *)MACB0_BASE, bis->bi_phy_id[0]);
+}
+#endif
+
+int board_early_init_f(void)
+{
+ /* Enable SDRAM in the EBI mux */
+ hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE));
+
+ gpio_enable_ebi();
+ gpio_enable_usart1();
+
+#if defined(CONFIG_MACB)
+ gpio_enable_macb0();
+#endif
+#if defined(CONFIG_MMC)
+ gpio_enable_mmci();
+#endif
+ return 0;
+}
+
+phys_size_t initdram(int board_type)
+{
+ unsigned long expected_size;
+ unsigned long actual_size;
+ void *sdram_base;
+
+ sdram_base = map_physmem(EBI_SDRAM_BASE, EBI_SDRAM_SIZE, MAP_NOCACHE);
+
+ expected_size = sdram_init(sdram_base, &sdram_config);
+ actual_size = get_ram_size(sdram_base, expected_size);
+
+ unmap_physmem(sdram_base, EBI_SDRAM_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;
+}
+
+void board_init_info(void)
+{
+ gd->bd->bi_phy_id[0] = 0x01;
+}
+
+void gclk_init(void)
+{
+ /* Hammerhead boards uses GCLK3 as 25MHz output to ethernet PHY */
+
+ /* Select GCLK3 peripheral function */
+ gpio_select_periph_A(GPIO_PIN_PB29, 0);
+
+ /* Enable GCLK3 with no input divider, from OSC0 (crystal) */
+ sm_writel(PM_GCCTRL(3), SM_BIT(CEN));
+}