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https://github.com/smaeul/u-boot.git
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8eb535e3b0
Add a function setup_mac_address() to update the MAC address from the default location in OTP for stm32mp2 platform. The max number of OTP for MAC address is increased to 8 for STM32MP25, defined with get_eth_nb() and checked in setup_mac_address. The MAC address FF:FF:FF:FF:FF:FF, the broadcast ethaddr, is a invalid value used for unused MAC address slot in OTP, for example for board with STM32MP25x part number allows up to 5 ethernet ports but it is not supported by the hardware, without switch; the associated variable "enetaddr%d" is not created. Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com> Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
100 lines
2.1 KiB
C
100 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-3-Clause
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/*
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* Copyright (C) 2023, STMicroelectronics - All Rights Reserved
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*/
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#define LOG_CATEGORY LOGC_ARCH
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#include <clk.h>
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#include <cpu_func.h>
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#include <debug_uart.h>
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#include <env_internal.h>
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#include <init.h>
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#include <misc.h>
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#include <wdt.h>
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#include <asm/io.h>
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#include <asm/arch/stm32.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/system.h>
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#include <dm/device.h>
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#include <dm/lists.h>
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#include <dm/uclass.h>
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/*
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* early TLB into the .data section so that it not get cleared
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* with 16kB alignment
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*/
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#define EARLY_TLB_SIZE 0xA000
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u8 early_tlb[EARLY_TLB_SIZE] __section(".data") __aligned(0x4000);
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/*
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* initialize the MMU and activate cache in U-Boot pre-reloc stage
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* MMU/TLB is updated in enable_caches() for U-Boot after relocation
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*/
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static void early_enable_caches(void)
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{
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if (CONFIG_IS_ENABLED(SYS_DCACHE_OFF))
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return;
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if (!(CONFIG_IS_ENABLED(SYS_ICACHE_OFF) && CONFIG_IS_ENABLED(SYS_DCACHE_OFF))) {
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gd->arch.tlb_size = EARLY_TLB_SIZE;
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gd->arch.tlb_addr = (unsigned long)&early_tlb;
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}
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/* enable MMU (default configuration) */
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dcache_enable();
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}
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/*
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* Early system init
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*/
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int arch_cpu_init(void)
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{
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icache_enable();
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early_enable_caches();
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return 0;
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}
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void enable_caches(void)
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{
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/* deactivate the data cache, early enabled in arch_cpu_init() */
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dcache_disable();
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/*
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* Force the call of setup_all_pgtables() in mmu_setup() by clearing tlb_fillptr
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* to update the TLB location udpated in board_f.c::reserve_mmu
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*/
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gd->arch.tlb_fillptr = 0;
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dcache_enable();
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}
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int arch_misc_init(void)
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{
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setup_serial_number();
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setup_mac_address();
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return 0;
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}
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/*
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* Force data-section, as .bss will not be valid
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* when save_boot_params is invoked.
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*/
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static uintptr_t nt_fw_dtb __section(".data");
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uintptr_t get_stm32mp_bl2_dtb(void)
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{
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return nt_fw_dtb;
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}
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/*
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* Save the FDT address provided by TF-A in r2 at boot time
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* This function is called from start.S
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*/
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void save_boot_params(unsigned long r0, unsigned long r1, unsigned long r2,
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unsigned long r3)
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{
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nt_fw_dtb = r2;
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save_boot_params_ret();
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}
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