2 * Copyright (C) 2006 Atmel Corporation
4 * See file CREDITS for list of people who contributed to this
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26 #include <asm/sdram.h>
27 #include <asm/arch/clk.h>
28 #include <asm/arch/gpio.h>
29 #include <asm/arch/hmatrix.h>
30 #include <asm/arch/portmux.h>
33 DECLARE_GLOBAL_DATA_PTR;
35 static const struct sdram_config sdram_config = {
36 .data_bits = SDRAM_DATA_16BIT,
48 .refresh_period = (156 * (SDRAMC_BUS_HZ / 1000)) / 10000,
51 int board_early_init_f(void)
53 /* Enable SDRAM in the EBI mux */
54 hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE));
56 /* Enable 26 address bits and NCS2 */
57 portmux_enable_ebi(16, 26, PORTMUX_EBI_CS(2), PORTMUX_DRIVE_HIGH);
58 portmux_enable_usart1(PORTMUX_DRIVE_MIN);
60 /* de-assert "force sys reset" pin */
61 portmux_select_gpio(PORTMUX_PORT_D, 1 << 15,
62 PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
66 portmux_select_gpio(PORTMUX_PORT_E, (1 << 19) | (1 << 20) | (1 << 23),
68 /* main board type inputs */
69 portmux_select_gpio(PORTMUX_PORT_B, (1 << 19) | (1 << 29),
71 /* DEBUG input (use weak pullup) */
72 portmux_select_gpio(PORTMUX_PORT_E, 1 << 21,
73 PORTMUX_DIR_INPUT | PORTMUX_PULL_UP);
75 /* are we suppressing the console ? */
76 if (gpio_get_value(GPIO_PIN_PE(21)) == 1)
77 gd->flags |= (GD_FLG_SILENT | GD_FLG_DISABLE_CONSOLE);
80 portmux_select_gpio(PORTMUX_PORT_E, 1 << 24, PORTMUX_DIR_INPUT);
81 portmux_select_gpio(PORTMUX_PORT_C, 1 << 18,
82 PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
86 /* release phys reset */
87 gpio_set_value(GPIO_PIN_PC(18), 0); /* PHY RESET (Release) */
89 #if defined(CONFIG_MACB)
91 portmux_enable_macb0(PORTMUX_MACB_MII, PORTMUX_DRIVE_HIGH);
92 portmux_enable_macb1(PORTMUX_MACB_MII, PORTMUX_DRIVE_HIGH);
95 #if defined(CONFIG_MMC)
96 portmux_enable_mmci(0, PORTMUX_MMCI_4BIT, PORTMUX_DRIVE_LOW);
102 phys_size_t initdram(int board_type)
104 unsigned long expected_size;
105 unsigned long actual_size;
108 sdram_base = map_physmem(EBI_SDRAM_BASE, EBI_SDRAM_SIZE, MAP_NOCACHE);
110 expected_size = sdram_init(sdram_base, &sdram_config);
111 actual_size = get_ram_size(sdram_base, expected_size);
113 unmap_physmem(sdram_base, EBI_SDRAM_SIZE);
115 if (expected_size != actual_size)
116 printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
117 actual_size >> 20, expected_size >> 20);
122 int board_early_init_r(void)
124 gd->bd->bi_phy_id[0] = 0x01;
125 gd->bd->bi_phy_id[1] = 0x03;
129 int board_postclk_init(void)
131 /* Use GCLK0 as 10MHz output */
132 gclk_enable_output(0, PORTMUX_DRIVE_LOW);
133 gclk_set_rate(0, GCLK_PARENT_OSC0, 10000000);
137 /* SPI chip select control */
138 #ifdef CONFIG_ATMEL_SPI
141 int spi_cs_is_valid(unsigned int bus, unsigned int cs)
143 return (bus == 0) && (cs == 0);
146 void spi_cs_activate(struct spi_slave *slave)
150 void spi_cs_deactivate(struct spi_slave *slave)
153 #endif /* CONFIG_ATMEL_SPI */
155 #ifdef CONFIG_CMD_NET
156 int board_eth_init(bd_t *bi)
158 macb_eth_initialize(0, (void *)MACB0_BASE, bi->bi_phy_id[0]);
159 macb_eth_initialize(1, (void *)MACB1_BASE, bi->bi_phy_id[1]);