2 * Copyright (C) 2008 Miromico AG
4 * Mostly copied form atmel ATNGW100 sources
6 * SPDX-License-Identifier: GPL-2.0+
13 #include <asm/sdram.h>
14 #include <asm/arch/clk.h>
15 #include <asm/arch/hmatrix.h>
16 #include <asm/arch/hardware.h>
17 #include <asm/arch/mmu.h>
18 #include <asm/arch/portmux.h>
20 DECLARE_GLOBAL_DATA_PTR
;
22 struct mmu_vm_range mmu_vmr_table
[CONFIG_SYS_NR_VM_REGIONS
] = {
24 .virt_pgno
= CONFIG_SYS_FLASH_BASE
>> MMU_PAGE_SHIFT
,
25 .nr_pages
= CONFIG_SYS_FLASH_SIZE
>> MMU_PAGE_SHIFT
,
26 .phys
= (CONFIG_SYS_FLASH_BASE
>> MMU_PAGE_SHIFT
)
29 .virt_pgno
= CONFIG_SYS_SDRAM_BASE
>> MMU_PAGE_SHIFT
,
30 .nr_pages
= EBI_SDRAM_SIZE
>> MMU_PAGE_SHIFT
,
31 .phys
= (CONFIG_SYS_SDRAM_BASE
>> MMU_PAGE_SHIFT
)
32 | MMU_VMR_CACHE_WRBACK
,
36 static const struct sdram_config sdram_config
= {
37 .data_bits
= SDRAM_DATA_32BIT
,
49 .refresh_period
= (781 * (SDRAMC_BUS_HZ
/ 1000)) / 100000,
53 int board_eth_init(bd_t
*bis
)
55 return macb_eth_initialize(0, (void *)ATMEL_BASE_MACB0
,
60 int board_early_init_f(void)
62 /* Enable SDRAM in the EBI mux */
63 hmatrix_slave_write(EBI
, SFR
, HMATRIX_BIT(EBI_SDRAM_ENABLE
));
65 portmux_enable_ebi(32, 23, 0, PORTMUX_DRIVE_HIGH
);
66 portmux_enable_usart1(PORTMUX_DRIVE_MIN
);
68 #if defined(CONFIG_MACB)
69 portmux_enable_macb0(PORTMUX_MACB_MII
, PORTMUX_DRIVE_HIGH
);
71 #if defined(CONFIG_MMC)
72 portmux_enable_mmci(0, PORTMUX_MMCI_4BIT
, PORTMUX_DRIVE_LOW
);
77 phys_size_t
initdram(int board_type
)
79 unsigned long expected_size
;
80 unsigned long actual_size
;
83 sdram_base
= uncached(EBI_SDRAM_BASE
);
85 expected_size
= sdram_init(sdram_base
, &sdram_config
);
86 actual_size
= get_ram_size(sdram_base
, expected_size
);
88 if (expected_size
!= actual_size
)
89 printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
90 actual_size
>> 20, expected_size
>> 20);
95 int board_early_init_r(void)
97 gd
->bd
->bi_phy_id
[0] = 0x01;
101 int board_postclk_init(void)
103 /* Hammerhead boards uses GCLK3 as 25MHz output to ethernet PHY */
104 gclk_enable_output(3, PORTMUX_DRIVE_LOW
);
105 gclk_set_rate(3, GCLK_PARENT_OSC0
, 25000000);