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https://github.com/AsahiLinux/u-boot
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aa6e94deab
The rest of the unmigrated CONFIG symbols in the CONFIG_SYS_SDRAM namespace do not easily transition to Kconfig. In many cases they likely should come from the device tree instead. Move these out of CONFIG namespace and in to CFG namespace. Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
136 lines
3.2 KiB
C
136 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2018 Microchip Technology Inc. and its subsidiaries
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*
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* Author: Sandeep Sheriker M <sandeep.sheriker@microchip.com>
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*/
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#include <common.h>
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#include <init.h>
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#include <asm/global_data.h>
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#include <asm/io.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_rstc.h>
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#include <asm/arch/at91_sfr.h>
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#include <asm/arch/clk.h>
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#include <asm/arch/gpio.h>
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#include <debug_uart.h>
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#include <asm/mach-types.h>
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extern void at91_pda_detect(void);
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DECLARE_GLOBAL_DATA_PTR;
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void at91_prepare_cpu_var(void);
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#ifdef CONFIG_CMD_NAND
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static void sam9x60ek_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 atmel_sfr *sfr = (struct atmel_sfr *)ATMEL_BASE_SFR;
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unsigned int csa;
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at91_pio3_set_a_periph(AT91_PIO_PORTD, 0, 1); /* NAND OE */
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at91_pio3_set_a_periph(AT91_PIO_PORTD, 1, 1); /* NAND WE */
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at91_pio3_set_a_periph(AT91_PIO_PORTD, 2, 0); /* NAND ALE */
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at91_pio3_set_a_periph(AT91_PIO_PORTD, 3, 0); /* NAND CLE */
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/* Enable NandFlash */
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at91_set_gpio_output(CFG_SYS_NAND_ENABLE_PIN, 1);
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/* Configure RDY/BSY */
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at91_set_gpio_input(CFG_SYS_NAND_READY_PIN, 1);
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at91_pio3_set_a_periph(AT91_PIO_PORTD, 6, 1);
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at91_pio3_set_a_periph(AT91_PIO_PORTD, 7, 1);
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at91_pio3_set_a_periph(AT91_PIO_PORTD, 8, 1);
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at91_pio3_set_a_periph(AT91_PIO_PORTD, 9, 1);
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at91_pio3_set_a_periph(AT91_PIO_PORTD, 10, 1);
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at91_pio3_set_a_periph(AT91_PIO_PORTD, 11, 1);
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at91_pio3_set_a_periph(AT91_PIO_PORTD, 12, 1);
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at91_pio3_set_a_periph(AT91_PIO_PORTD, 13, 1);
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at91_periph_clk_enable(ATMEL_ID_PIOD);
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/* Enable CS3 */
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csa = readl(&sfr->ebicsa);
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csa |= AT91_SFR_CCFG_EBI_CSA(3, 1) | AT91_SFR_CCFG_NFD0_ON_D16;
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/* Configure IO drive */
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csa &= ~AT91_SFR_CCFG_EBI_DRIVE_SAM9X60;
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writel(csa, &sfr->ebicsa);
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/* Configure SMC CS3 for NAND/SmartMedia */
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writel(AT91_SMC_SETUP_NWE(4), &smc->cs[3].setup);
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writel(AT91_SMC_PULSE_NWE(10) | AT91_SMC_PULSE_NCS_WR(20) |
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AT91_SMC_PULSE_NRD(10) | AT91_SMC_PULSE_NCS_RD(20),
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&smc->cs[3].pulse);
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writel(AT91_SMC_CYCLE_NWE(20) | AT91_SMC_CYCLE_NRD(20),
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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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#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 | AT91_SMC_MODE_TDF_CYCLE(15),
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&smc->cs[3].mode);
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}
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#endif
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#ifdef CONFIG_BOARD_LATE_INIT
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int board_late_init(void)
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{
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at91_prepare_cpu_var();
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at91_pda_detect();
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return 0;
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}
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#endif
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#ifdef CONFIG_DEBUG_UART_BOARD_INIT
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void board_debug_uart_init(void)
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{
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at91_seriald_hw_init();
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}
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#endif
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#ifdef CONFIG_BOARD_EARLY_INIT_F
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int board_early_init_f(void)
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{
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return 0;
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}
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#endif
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#define MAC24AA_MAC_OFFSET 0xfa
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#ifdef CONFIG_MISC_INIT_R
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int misc_init_r(void)
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{
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#ifdef CONFIG_I2C_EEPROM
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at91_set_ethaddr(MAC24AA_MAC_OFFSET);
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#endif
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return 0;
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}
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#endif
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int board_init(void)
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{
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/* address of boot parameters */
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gd->bd->bi_boot_params = CFG_SYS_SDRAM_BASE + 0x100;
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#ifdef CONFIG_CMD_NAND
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sam9x60ek_nand_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 *)CFG_SYS_SDRAM_BASE,
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CFG_SYS_SDRAM_SIZE);
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return 0;
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}
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