2 * Copyright (C) 2008 Atmel Corporation
4 * SPDX-License-Identifier: GPL-2.0+
10 #include <asm/sdram.h>
11 #include <asm/arch/clk.h>
12 #include <asm/arch/hmatrix.h>
13 #include <asm/arch/mmu.h>
14 #include <asm/arch/portmux.h>
16 DECLARE_GLOBAL_DATA_PTR
;
18 struct mmu_vm_range mmu_vmr_table
[CONFIG_SYS_NR_VM_REGIONS
] = {
20 .virt_pgno
= CONFIG_SYS_FLASH_BASE
>> PAGE_SHIFT
,
21 .nr_pages
= CONFIG_SYS_FLASH_SIZE
>> PAGE_SHIFT
,
22 .phys
= (CONFIG_SYS_FLASH_BASE
>> PAGE_SHIFT
)
25 .virt_pgno
= CONFIG_SYS_SDRAM_BASE
>> PAGE_SHIFT
,
26 .nr_pages
= EBI_SDRAM_SIZE
>> PAGE_SHIFT
,
27 .phys
= (CONFIG_SYS_SDRAM_BASE
>> PAGE_SHIFT
)
28 | MMU_VMR_CACHE_WRBACK
,
32 static const struct sdram_config sdram_config
= {
33 /* MT48LC4M32B2P-6 (16 MB) */
34 .data_bits
= SDRAM_DATA_32BIT
,
46 .refresh_period
= (156 * (SDRAMC_BUS_HZ
/ 1000)) / 10000,
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(32, 23, 0, PORTMUX_DRIVE_HIGH
);
55 portmux_enable_usart3(PORTMUX_DRIVE_MIN
);
56 #if defined(CONFIG_MACB)
57 portmux_enable_macb0(PORTMUX_MACB_MII
, PORTMUX_DRIVE_HIGH
);
59 #if defined(CONFIG_MMC)
60 portmux_enable_mmci(0, PORTMUX_MMCI_4BIT
, PORTMUX_DRIVE_LOW
);
66 phys_size_t
initdram(int board_type
)
68 unsigned long expected_size
;
69 unsigned long actual_size
;
72 sdram_base
= uncached(EBI_SDRAM_BASE
);
74 expected_size
= sdram_init(sdram_base
, &sdram_config
);
75 actual_size
= get_ram_size(sdram_base
, expected_size
);
77 if (expected_size
!= actual_size
)
78 printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
79 actual_size
>> 20, expected_size
>> 20);
84 int board_early_init_r(void)
86 gd
->bd
->bi_phy_id
[0] = 0x01;
90 #if defined(CONFIG_MACB) && defined(CONFIG_CMD_NET)
91 int board_eth_init(bd_t
*bi
)
93 return macb_eth_initialize(0, (void *)ATMEL_BASE_MACB0
,