Ilias ApalodimasandTom Rini
1174c99ab4
Currently, the bi_dram[] information is stored in the board info structure (bd). Because bd is only valid after reserve_board(), dram_init_banksize() must be called late in the initialization process. This limitation is problematic, as it forces us to rely on a variety of bespoke functions to determine board RAM, bank memory sizes, and other early setup requirements. By moving bi_dram[] into the global data (gd), we can run it earlier. This is particularly convenient since boards define their own dram_init_banksize() routines, which do not always rely on parsing Device Tree (DT) memory nodes. Additionally, U-Boot defaults to relocating to the top of the first memory bank. While boards currently use custom functions to override this behavior, having the DRAM bank information available earlier in gd makes relocating to a different bank trivial and standardizes the process. Reviewed-by: Anshul Dalal <anshuld@ti.com> Tested-by: Michal Simek <michal.simek@amd.com> # Versal Gen 2 Vek385 Tested-by: Anshul Dalal <anshuld@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Tested-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
85 lines
1.5 KiB
C
85 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2022 Microchip Technology Inc. and its subsidiaries
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*
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* Author: Durai Manickam KR <durai.manickamkr@microchip.com>
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*/
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#include <debug_uart.h>
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#include <fdtdec.h>
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#include <init.h>
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#include <led.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/at91sam9_smc.h>
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#include <asm/arch/clk.h>
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#include <asm/arch/gpio.h>
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#include <asm/global_data.h>
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#include <asm/io.h>
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#include <asm/mach-types.h>
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#include <dm/ofnode.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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static void board_leds_init(void)
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{
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#if !CONFIG_IS_ENABLED(LED_BOOT)
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at91_set_pio_output(AT91_PIO_PORTD, 17, 0); /* LED RED */
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at91_set_pio_output(AT91_PIO_PORTD, 19, 0); /* LED GREEN */
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at91_set_pio_output(AT91_PIO_PORTD, 21, 1); /* LED BLUE */
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#endif
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}
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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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#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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#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 = gd->dram[0].start + 0x100;
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board_leds_init();
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return 0;
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}
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int dram_init_banksize(void)
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{
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return fdtdec_setup_memory_banksize();
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}
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int dram_init(void)
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{
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return fdtdec_setup_mem_size_base();
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}
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