upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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173 lines
4.2 KiB
173 lines
4.2 KiB
/*
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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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* Ilko Iliev <www.ronetix.at>
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*
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* (C) Copyright 2009-2011
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* Eric Benard <eric@eukrea.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 <asm/io.h>
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#include <asm/arch/at91sam9260.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_matrix.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/at91_pio.h>
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#include <asm/arch/clk.h>
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#include <asm/arch/hardware.h>
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#if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
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#include <net.h>
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#endif
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#include <netdev.h>
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DECLARE_GLOBAL_DATA_PTR;
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/* ------------------------------------------------------------------------- */
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/*
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* Miscelaneous platform dependent initialisations
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*/
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#ifdef CONFIG_CMD_NAND
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static void cpu9260_nand_hw_init(void)
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{
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unsigned long csa;
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at91_smc_t *smc = (at91_smc_t *) ATMEL_BASE_SMC;
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at91_matrix_t *matrix = (at91_matrix_t *) ATMEL_BASE_MATRIX;
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at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
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/* Enable CS3 */
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csa = readl(&matrix->csa) | AT91_MATRIX_CSA_EBI_CS3A;
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writel(csa, &matrix->csa);
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/* Configure SMC CS3 for NAND/SmartMedia */
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#if defined(CONFIG_CPU9G20)
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writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(0) |
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AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0),
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&smc->cs[3].setup);
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writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(4) |
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AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(4),
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&smc->cs[3].pulse);
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writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(7),
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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(3),
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&smc->cs[3].mode);
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#elif defined(CONFIG_CPU9260)
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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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#endif
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writel(1 << ATMEL_ID_PIOC, &pmc->pcer);
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/* Configure RDY/BSY */
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at91_set_pio_input(CONFIG_SYS_NAND_READY_PIN, 1);
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/* Enable NandFlash */
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at91_set_pio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
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}
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#endif
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#ifdef CONFIG_MACB
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static void cpu9260_macb_hw_init(void)
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{
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unsigned long rstcmr;
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at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
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at91_rstc_t *rstc = (at91_rstc_t *) ATMEL_BASE_RSTC;
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/* Enable clock */
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writel(1 << ATMEL_ID_EMAC0, &pmc->pcer);
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at91_set_pio_pullup(AT91_PIO_PORTA, 17, 1);
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rstcmr = readl(&rstc->mr) & AT91_RSTC_MR_ERSTL_MASK;
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/* Need to reset PHY -> 500ms reset */
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writel(AT91_RSTC_KEY | AT91_RSTC_MR_ERSTL(0xD) |
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AT91_RSTC_MR_URSTEN, &rstc->mr);
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writel(AT91_RSTC_KEY | AT91_RSTC_CR_EXTRST, &rstc->cr);
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/* Wait for end hardware reset */
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while (!(readl(&rstc->sr) & AT91_RSTC_SR_NRSTL))
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;
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/* Restore NRST value */
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writel(AT91_RSTC_KEY | rstcmr | AT91_RSTC_MR_URSTEN, &rstc->mr);
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at91_macb_hw_init();
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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_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
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writel((1 << ATMEL_ID_PIOA) |
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(1 << ATMEL_ID_PIOB) |
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(1 << ATMEL_ID_PIOC),
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&pmc->pcer);
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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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/* arch number of the board */
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#if defined(CONFIG_CPU9G20)
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gd->bd->bi_arch_number = MACH_TYPE_CPUAT9G20;
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#elif defined(CONFIG_CPU9260)
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gd->bd->bi_arch_number = MACH_TYPE_CPUAT9260;
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#endif
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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_CMD_NAND
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cpu9260_nand_hw_init();
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#endif
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#ifdef CONFIG_MACB
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cpu9260_macb_hw_init();
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#endif
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#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
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status_led_set(STATUS_LED_BOOT, STATUS_LED_ON);
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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((long *)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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int rc = 0;
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#ifdef CONFIG_MACB
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rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC0, 0);
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#endif
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return rc;
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}
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