2 * Copyright (C) 2006 Atmel Corporation
4 * SPDX-License-Identifier: GPL-2.0+
10 #include <asm/arch/clk.h>
11 #include <asm/arch/gpio.h>
12 #include <asm/arch/hmatrix.h>
13 #include <asm/arch/mmu.h>
14 #include <asm/arch/portmux.h>
17 DECLARE_GLOBAL_DATA_PTR;
19 struct mmu_vm_range mmu_vmr_table[CONFIG_SYS_NR_VM_REGIONS] = {
21 .virt_pgno = CONFIG_SYS_FLASH_BASE >> MMU_PAGE_SHIFT,
22 .nr_pages = CONFIG_SYS_FLASH_SIZE >> MMU_PAGE_SHIFT,
23 .phys = (CONFIG_SYS_FLASH_BASE >> MMU_PAGE_SHIFT)
26 .virt_pgno = CONFIG_SYS_SDRAM_BASE >> MMU_PAGE_SHIFT,
27 .nr_pages = EBI_SDRAM_SIZE >> MMU_PAGE_SHIFT,
28 .phys = (CONFIG_SYS_SDRAM_BASE >> MMU_PAGE_SHIFT)
29 | MMU_VMR_CACHE_WRBACK,
33 static const struct sdram_config sdram_config = {
34 .data_bits = SDRAM_DATA_16BIT,
46 .refresh_period = (781 * (SDRAMC_BUS_HZ / 1000)) / 100000,
49 int board_early_init_f(void)
51 /* Enable SDRAM in the EBI mux */
52 hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE));
54 portmux_enable_ebi(16, 23, 0, PORTMUX_DRIVE_HIGH);
55 sdram_init(uncached(EBI_SDRAM_BASE), &sdram_config);
57 portmux_enable_usart1(PORTMUX_DRIVE_MIN);
59 #if defined(CONFIG_MACB)
60 portmux_enable_macb0(PORTMUX_MACB_MII, PORTMUX_DRIVE_HIGH);
61 portmux_enable_macb1(PORTMUX_MACB_MII, PORTMUX_DRIVE_HIGH);
63 #if defined(CONFIG_MMC)
64 portmux_enable_mmci(0, PORTMUX_MMCI_4BIT, PORTMUX_DRIVE_LOW);
66 #if defined(CONFIG_ATMEL_SPI)
67 portmux_enable_spi0(1 << 0, PORTMUX_DRIVE_LOW);
73 int board_early_init_r(void)
75 gd->bd->bi_phy_id[0] = 0x01;
76 gd->bd->bi_phy_id[1] = 0x03;
81 int board_eth_init(bd_t *bi)
83 macb_eth_initialize(0, (void *)ATMEL_BASE_MACB0, bi->bi_phy_id[0]);
84 macb_eth_initialize(1, (void *)ATMEL_BASE_MACB1, bi->bi_phy_id[1]);
89 /* SPI chip select control */
90 #ifdef CONFIG_ATMEL_SPI
93 #define ATNGW100_DATAFLASH_CS_PIN GPIO_PIN_PA(3)
95 int spi_cs_is_valid(unsigned int bus, unsigned int cs)
97 return bus == 0 && cs == 0;
100 void spi_cs_activate(struct spi_slave *slave)
102 gpio_set_value(ATNGW100_DATAFLASH_CS_PIN, 0);
105 void spi_cs_deactivate(struct spi_slave *slave)
107 gpio_set_value(ATNGW100_DATAFLASH_CS_PIN, 1);
109 #endif /* CONFIG_ATMEL_SPI */