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4535a24c0c
add common phy reset code into a common function. Signed-off-by: Heiko Schocher <hs@denx.de> Cc: Andreas Bießmann <andreas.devel@googlemail.com> Cc: Bo Shen <voice.shen@atmel.com> Cc: Jens Scharsig <esw@bus-elektronik.de> Cc: Sergey Lapin <slapin@ossfans.org> Cc: Stelian Pop <stelian@popies.net> Cc: Albin Tonnerre <albin.tonnerre@free-electrons.com> Cc: Eric Benard <eric@eukrea.com> Cc: Markus Hubig <mhubig@imko.de> Acked-by: Jens Scharsig (BuS Elektronik) <esw@bus-elektronik.de> Tested-by: Jens Scharsig (BuS Elektronik) <esw@bus-elektronik.de> Tested-by: Bo Shen <voice.shen@atmel.com> Acked-by: Bo Shen <voice.shen@atmel.com> Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
159 lines
3.7 KiB
C
159 lines
3.7 KiB
C
/*
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* (C) Copyright 2007-2008
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* Stelian Pop <stelian@popies.net>
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* Lead Tech Design <www.leadtechdesign.com>
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*
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* Achim Ehrlich <aehrlich@taskit.de>
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* taskit GmbH <www.taskit.de>
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*
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* (C) Copyright 2012-
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* Markus Hubig <mhubig@imko.de>
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* IMKO GmbH <www.imko.de>
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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 <asm/io.h>
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#include <asm/arch/at91sam9260_matrix.h>
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#include <asm/arch/at91sam9_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/gpio.h>
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#include <watchdog.h>
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#ifdef CONFIG_MACB
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# include <net.h>
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# include <netdev.h>
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#endif
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DECLARE_GLOBAL_DATA_PTR;
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static void stamp9G20_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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struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
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unsigned long csa;
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/* Assign CS3 to NAND/SmartMedia Interface */
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csa = readl(&matrix->ebicsa);
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csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA;
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writel(csa, &matrix->ebicsa);
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/* Configure SMC CS3 for NAND/SmartMedia */
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writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
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AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
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&smc->cs[3].setup);
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writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) |
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AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3),
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&smc->cs[3].pulse);
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writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5),
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&smc->cs[3].cycle);
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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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AT91_SMC_MODE_DBW_8 |
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AT91_SMC_MODE_TDF_CYCLE(2),
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&smc->cs[3].mode);
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/* Configure RDY/BSY */
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at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
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/* Enable NandFlash */
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at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
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}
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#ifdef CONFIG_MACB
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static void stamp9G20_macb_hw_init(void)
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{
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struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA;
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/* Enable the PHY Chip via PA26 on the Stamp 2 Adaptor */
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at91_set_gpio_output(AT91_PIN_PA26, 0);
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/*
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* Disable pull-up on:
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* RXDV (PA17) => PHY normal mode (not Test mode)
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* ERX0 (PA14) => PHY ADDR0
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* ERX1 (PA15) => PHY ADDR1
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* ERX2 (PA25) => PHY ADDR2
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* ERX3 (PA26) => PHY ADDR3
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* ECRS (PA28) => PHY ADDR4 => PHYADDR = 0x0
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*
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* PHY has internal pull-down
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*/
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writel(pin_to_mask(AT91_PIN_PA14) |
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pin_to_mask(AT91_PIN_PA15) |
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pin_to_mask(AT91_PIN_PA17) |
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pin_to_mask(AT91_PIN_PA18) |
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pin_to_mask(AT91_PIN_PA28),
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&pioa->pudr);
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at91_phy_reset();
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/* Re-enable pull-up */
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writel(pin_to_mask(AT91_PIN_PA14) |
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pin_to_mask(AT91_PIN_PA15) |
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pin_to_mask(AT91_PIN_PA17) |
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pin_to_mask(AT91_PIN_PA18) |
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pin_to_mask(AT91_PIN_PA28),
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&pioa->puer);
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/* Initialize EMAC=MACB hardware */
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at91_macb_hw_init();
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}
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#endif /* CONFIG_MACB */
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int board_early_init_f(void)
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{
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struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
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/* Enable clocks for all PIOs */
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writel((1 << ATMEL_ID_PIOA) | (1 << ATMEL_ID_PIOB) |
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(1 << ATMEL_ID_PIOC), &pmc->pcer);
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return 0;
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}
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int board_postclk_init(void)
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{
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/*
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* Initialize the serial interface here, because be need a running
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* timer to set PC9 to high and wait for some time to enable the
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* level converter of the RS232 interface on the PortuxG20 board.
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*/
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#ifdef CONFIG_PORTUXG20
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at91_set_gpio_output(AT91_PIN_PC9, 1);
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mdelay(1);
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#endif
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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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stamp9G20_nand_hw_init();
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#ifdef CONFIG_MACB
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stamp9G20_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(
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(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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#ifdef CONFIG_MACB
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int board_eth_init(bd_t *bis)
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{
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return macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC0, 0x00);
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}
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#endif /* CONFIG_MACB */
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