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 */