u-boot/board/earthlcd/favr-32-ezkit/favr-32-ezkit.c
Andreas Bießmann 186678600a avr32: convert to dram_init()
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-02-17 22:52:41 +01:00

82 lines
1.8 KiB
C

/*
* Copyright (C) 2008 Atmel Corporation
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <netdev.h>
#include <asm/io.h>
#include <asm/sdram.h>
#include <asm/arch/clk.h>
#include <asm/arch/hmatrix.h>
#include <asm/arch/mmu.h>
#include <asm/arch/portmux.h>
DECLARE_GLOBAL_DATA_PTR;
struct mmu_vm_range mmu_vmr_table[CONFIG_SYS_NR_VM_REGIONS] = {
{
.virt_pgno = CONFIG_SYS_FLASH_BASE >> MMU_PAGE_SHIFT,
.nr_pages = CONFIG_SYS_FLASH_SIZE >> MMU_PAGE_SHIFT,
.phys = (CONFIG_SYS_FLASH_BASE >> MMU_PAGE_SHIFT)
| MMU_VMR_CACHE_NONE,
}, {
.virt_pgno = CONFIG_SYS_SDRAM_BASE >> MMU_PAGE_SHIFT,
.nr_pages = EBI_SDRAM_SIZE >> MMU_PAGE_SHIFT,
.phys = (CONFIG_SYS_SDRAM_BASE >> MMU_PAGE_SHIFT)
| MMU_VMR_CACHE_WRBACK,
},
};
static const struct sdram_config sdram_config = {
/* MT48LC4M32B2P-6 (16 MB) */
.data_bits = SDRAM_DATA_32BIT,
.row_bits = 12,
.col_bits = 8,
.bank_bits = 2,
.cas = 3,
.twr = 2,
.trc = 7,
.trp = 2,
.trcd = 2,
.tras = 5,
.txsr = 5,
/* 15.6 us */
.refresh_period = (156 * (SDRAMC_BUS_HZ / 1000)) / 10000,
};
int board_early_init_f(void)
{
/* Enable SDRAM in the EBI mux */
hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE));
portmux_enable_ebi(32, 23, 0, PORTMUX_DRIVE_HIGH);
sdram_init(uncached(EBI_SDRAM_BASE), &sdram_config);
portmux_enable_usart3(PORTMUX_DRIVE_MIN);
#if defined(CONFIG_MACB)
portmux_enable_macb0(PORTMUX_MACB_MII, PORTMUX_DRIVE_HIGH);
#endif
#if defined(CONFIG_MMC)
portmux_enable_mmci(0, PORTMUX_MMCI_4BIT, PORTMUX_DRIVE_LOW);
#endif
return 0;
}
int board_early_init_r(void)
{
gd->bd->bi_phy_id[0] = 0x01;
return 0;
}
#if defined(CONFIG_MACB) && defined(CONFIG_CMD_NET)
int board_eth_init(bd_t *bi)
{
return macb_eth_initialize(0, (void *)ATMEL_BASE_MACB0,
bi->bi_phy_id[0]);
}
#endif