mirror of
https://github.com/AsahiLinux/u-boot
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fdf6bbb260
Pull this LPGPR unlock into common code, since it is used in multiple systems already. Signed-off-by: Marek Vasut <marex@denx.de>
144 lines
2.7 KiB
C
144 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2022 Marek Vasut <marex@denx.de>
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*/
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#include <common.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/io.h>
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#include <dm.h>
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#include <env.h>
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#include <env_internal.h>
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#include <i2c_eeprom.h>
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#include <malloc.h>
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#include <net.h>
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#include <miiphy.h>
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#include "lpddr4_timing.h"
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#include "../common/dh_common.h"
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#include "../common/dh_imx.h"
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DECLARE_GLOBAL_DATA_PTR;
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int mach_cpu_init(void)
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{
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icache_enable();
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return 0;
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}
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int board_phys_sdram_size(phys_size_t *size)
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{
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const u16 memsz[] = { 512, 1024, 1536, 2048, 3072, 4096, 6144, 8192 };
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u8 memcfg = dh_get_memcfg();
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*size = (u64)memsz[memcfg] << 20ULL;
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return 0;
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}
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static void setup_eqos(void)
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{
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struct iomuxc_gpr_base_regs *gpr =
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(struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
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/* Set INTF as RGMII, enable RGMII TXC clock. */
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clrsetbits_le32(&gpr->gpr[1],
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IOMUXC_GPR_GPR1_GPR_ENET_QOS_INTF_SEL_MASK, BIT(16));
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setbits_le32(&gpr->gpr[1], BIT(19) | BIT(21));
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set_clk_eqos(ENET_125MHZ);
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}
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static void setup_fec(void)
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{
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struct iomuxc_gpr_base_regs *gpr =
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(struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
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/* Enable RGMII TX clk output. */
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setbits_le32(&gpr->gpr[1], BIT(22));
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set_clk_enet(ENET_125MHZ);
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}
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static int dh_imx8_setup_ethaddr(void)
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{
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unsigned char enetaddr[6];
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if (dh_mac_is_in_env("ethaddr"))
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return 0;
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if (!dh_imx_get_mac_from_fuse(enetaddr))
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goto out;
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if (!dh_get_mac_from_eeprom(enetaddr, "eeprom0"))
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goto out;
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return -ENXIO;
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out:
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return eth_env_set_enetaddr("ethaddr", enetaddr);
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}
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static int dh_imx8_setup_eth1addr(void)
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{
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unsigned char enetaddr[6];
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if (dh_mac_is_in_env("eth1addr"))
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return 0;
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if (!dh_imx_get_mac_from_fuse(enetaddr))
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goto increment_out;
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if (!dh_get_mac_from_eeprom(enetaddr, "eeprom1"))
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goto out;
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/*
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* Populate second ethernet MAC from first ethernet EEPROM with MAC
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* address LSByte incremented by 1. This is only used on SoMs without
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* second ethernet EEPROM, i.e. early prototypes.
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*/
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if (!dh_get_mac_from_eeprom(enetaddr, "eeprom0"))
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goto increment_out;
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return -ENXIO;
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increment_out:
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enetaddr[5]++;
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out:
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return eth_env_set_enetaddr("eth1addr", enetaddr);
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}
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int dh_setup_mac_address(void)
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{
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int ret;
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ret = dh_imx8_setup_ethaddr();
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if (ret)
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printf("%s: Unable to setup ethaddr! ret = %d\n", __func__, ret);
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ret = dh_imx8_setup_eth1addr();
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if (ret)
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printf("%s: Unable to setup eth1addr! ret = %d\n", __func__, ret);
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return ret;
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}
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int board_init(void)
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{
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setup_eqos();
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setup_fec();
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return 0;
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}
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int board_late_init(void)
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{
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dh_setup_mac_address();
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return 0;
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}
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enum env_location env_get_location(enum env_operation op, int prio)
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{
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return prio ? ENVL_UNKNOWN : ENVL_SPI_FLASH;
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}
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