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https://github.com/AsahiLinux/u-boot
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7ca6f36325
Add sama5d3 Xplained board support which use Atmel SAMA5D36 SoC. Now it supports boot from NAND flash and SD/MMC card. Features support: - NAND flash - SD/MMC card - Two USB hosts - Ethernet (one GMAC, one EMAC) Signed-off-by: Bo Shen <voice.shen@atmel.com> [reorder boards.cfg] Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
130 lines
3 KiB
C
130 lines
3 KiB
C
/*
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* Copyright (C) 2014 Atmel Corporation
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* Bo Shen <voice.shen@atmel.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <mmc.h>
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#include <asm/io.h>
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#include <asm/arch/sama5d3_smc.h>
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#include <asm/arch/at91_common.h>
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#include <asm/arch/at91_pmc.h>
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#include <asm/arch/at91_rstc.h>
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#include <asm/arch/gpio.h>
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#include <asm/arch/clk.h>
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#include <atmel_mci.h>
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#include <net.h>
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#include <netdev.h>
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DECLARE_GLOBAL_DATA_PTR;
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#ifdef CONFIG_NAND_ATMEL
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void sama5d3_xplained_nand_hw_init(void)
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{
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struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
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at91_periph_clk_enable(ATMEL_ID_SMC);
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/* Configure SMC CS3 for NAND/SmartMedia */
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writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(1) |
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AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(1),
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&smc->cs[3].setup);
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writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(5) |
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AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(5),
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&smc->cs[3].pulse);
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writel(AT91_SMC_CYCLE_NWE(8) | AT91_SMC_CYCLE_NRD(8),
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&smc->cs[3].cycle);
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writel(AT91_SMC_TIMINGS_TCLR(3) | AT91_SMC_TIMINGS_TADL(10) |
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AT91_SMC_TIMINGS_TAR(3) | AT91_SMC_TIMINGS_TRR(4) |
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AT91_SMC_TIMINGS_TWB(5) | AT91_SMC_TIMINGS_RBNSEL(3)|
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AT91_SMC_TIMINGS_NFSEL(1), &smc->cs[3].timings);
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writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
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AT91_SMC_MODE_EXNW_DISABLE |
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#ifdef CONFIG_SYS_NAND_DBW_16
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AT91_SMC_MODE_DBW_16 |
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#else /* CONFIG_SYS_NAND_DBW_8 */
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AT91_SMC_MODE_DBW_8 |
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#endif
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AT91_SMC_MODE_TDF_CYCLE(3),
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&smc->cs[3].mode);
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}
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#endif
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#ifdef CONFIG_CMD_USB
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static void sama5d3_xplained_usb_hw_init(void)
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{
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at91_set_pio_output(AT91_PIO_PORTE, 3, 0);
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at91_set_pio_output(AT91_PIO_PORTE, 4, 0);
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}
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#endif
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#ifdef CONFIG_GENERIC_ATMEL_MCI
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static void sama5d3_xplained_mci0_hw_init(void)
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{
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at91_mci_hw_init();
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at91_set_pio_output(AT91_PIO_PORTE, 2, 0); /* MCI0 Power */
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}
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#endif
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int board_early_init_f(void)
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{
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at91_periph_clk_enable(ATMEL_ID_PIOA);
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at91_periph_clk_enable(ATMEL_ID_PIOB);
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at91_periph_clk_enable(ATMEL_ID_PIOC);
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at91_periph_clk_enable(ATMEL_ID_PIOD);
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at91_periph_clk_enable(ATMEL_ID_PIOE);
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at91_seriald_hw_init();
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return 0;
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}
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int board_init(void)
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{
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/* adress of boot parameters */
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gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
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#ifdef CONFIG_NAND_ATMEL
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sama5d3_xplained_nand_hw_init();
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#endif
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#ifdef CONFIG_CMD_USB
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sama5d3_xplained_usb_hw_init();
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#endif
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#ifdef CONFIG_GENERIC_ATMEL_MCI
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sama5d3_xplained_mci0_hw_init();
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#endif
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#ifdef CONFIG_MACB
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at91_gmac_hw_init();
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at91_macb_hw_init();
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#endif
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return 0;
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}
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int dram_init(void)
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{
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gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
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CONFIG_SYS_SDRAM_SIZE);
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return 0;
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}
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int board_eth_init(bd_t *bis)
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{
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#ifdef CONFIG_MACB
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macb_eth_initialize(0, (void *)ATMEL_BASE_GMAC, 0x00);
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macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC, 0x00);
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#endif
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return 0;
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}
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#ifdef CONFIG_GENERIC_ATMEL_MCI
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int board_mmc_init(bd_t *bis)
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{
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atmel_mci_init((void *)ATMEL_BASE_MCI0);
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return 0;
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}
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#endif
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