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 #define SM_PM_GCCTRL 0x0060
35 DECLARE_GLOBAL_DATA_PTR;
37 static const struct sdram_config sdram_config = {
38 .data_bits = SDRAM_DATA_16BIT,
50 .refresh_period = (156 * (SDRAMC_BUS_HZ / 1000)) / 10000,
53 int board_early_init_f(void)
55 /* Enable SDRAM in the EBI mux */
56 hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE));
58 /* Enable 26 address bits and NCS2 */
59 portmux_enable_ebi(16, 26, PORTMUX_EBI_CS(2), PORTMUX_DRIVE_HIGH);
60 portmux_enable_usart1(PORTMUX_DRIVE_MIN);
62 /* de-assert "force sys reset" pin */
63 portmux_select_gpio(PORTMUX_PORT_D, 1 << 15,
64 PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
68 portmux_select_gpio(PORTMUX_PORT_E, (1 << 19) | (1 << 20) | (1 << 23),
70 /* main board type inputs */
71 portmux_select_gpio(PORTMUX_PORT_B, (1 << 19) | (1 << 29),
73 /* DEBUG input (use weak pullup) */
74 portmux_select_gpio(PORTMUX_PORT_E, 1 << 21,
75 PORTMUX_DIR_INPUT | PORTMUX_PULL_UP);
77 /* are we suppressing the console ? */
78 if (gpio_get_value(GPIO_PIN_PE(21)) == 1)
79 gd->flags |= (GD_FLG_SILENT | GD_FLG_DISABLE_CONSOLE);
82 portmux_select_gpio(PORTMUX_PORT_E, 1 << 24, PORTMUX_DIR_INPUT);
83 portmux_select_gpio(PORTMUX_PORT_C, 1 << 18,
84 PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
86 /* GCLK0 - 10MHz clock */
87 writel(0x00000004, (void *)SM_BASE + SM_PM_GCCTRL);
88 portmux_select_peripheral(PORTMUX_PORT_A, 1 << 30, PORTMUX_FUNC_A, 0);
92 /* release phys reset */
93 gpio_set_value(GPIO_PIN_PC(18), 0); /* PHY RESET (Release) */
95 #if defined(CONFIG_MACB)
97 portmux_enable_macb0(PORTMUX_MACB_MII, PORTMUX_DRIVE_HIGH);
98 portmux_enable_macb1(PORTMUX_MACB_MII, PORTMUX_DRIVE_HIGH);
101 #if defined(CONFIG_MMC)
102 portmux_enable_mmci(0, PORTMUX_MMCI_4BIT, PORTMUX_DRIVE_LOW);
108 phys_size_t initdram(int board_type)
110 unsigned long expected_size;
111 unsigned long actual_size;
114 sdram_base = map_physmem(EBI_SDRAM_BASE, EBI_SDRAM_SIZE, MAP_NOCACHE);
116 expected_size = sdram_init(sdram_base, &sdram_config);
117 actual_size = get_ram_size(sdram_base, expected_size);
119 unmap_physmem(sdram_base, EBI_SDRAM_SIZE);
121 if (expected_size != actual_size)
122 printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
123 actual_size >> 20, expected_size >> 20);
128 int board_early_init_r(void)
130 gd->bd->bi_phy_id[0] = 0x01;
131 gd->bd->bi_phy_id[1] = 0x03;
135 /* SPI chip select control */
136 #ifdef CONFIG_ATMEL_SPI
139 int spi_cs_is_valid(unsigned int bus, unsigned int cs)
141 return (bus == 0) && (cs == 0);
144 void spi_cs_activate(struct spi_slave *slave)
148 void spi_cs_deactivate(struct spi_slave *slave)
151 #endif /* CONFIG_ATMEL_SPI */
153 #ifdef CONFIG_CMD_NET
154 int board_eth_init(bd_t *bi)
156 macb_eth_initialize(0, (void *)MACB0_BASE, bi->bi_phy_id[0]);
157 macb_eth_initialize(1, (void *)MACB1_BASE, bi->bi_phy_id[1]);