u-boot/arch/arm/cpu/armv7/socfpga/misc.c

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/*
* Copyright (C) 2012 Altera Corporation <www.altera.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <altera.h>
#include <miiphy.h>
#include <netdev.h>
#include <asm/arch/reset_manager.h>
#include <asm/arch/system_manager.h>
#include <asm/arch/dwmmc.h>
#include <asm/arch/nic301.h>
#include <asm/arch/scu.h>
#include <asm/pl310.h>
DECLARE_GLOBAL_DATA_PTR;
static struct pl310_regs *const pl310 =
(struct pl310_regs *)CONFIG_SYS_PL310_BASE;
static struct socfpga_system_manager *sysmgr_regs =
(struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
static struct nic301_registers *nic301_regs =
(struct nic301_registers *)SOCFPGA_L3REGS_ADDRESS;
static struct scu_registers *scu_regs =
(struct scu_registers *)SOCFPGA_MPUSCU_ADDRESS;
int dram_init(void)
{
gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
return 0;
}
void enable_caches(void)
{
#ifndef CONFIG_SYS_ICACHE_OFF
icache_enable();
#endif
#ifndef CONFIG_SYS_DCACHE_OFF
dcache_enable();
#endif
}
/*
* DesignWare Ethernet initialization
*/
#ifdef CONFIG_DESIGNWARE_ETH
int cpu_eth_init(bd_t *bis)
{
#if CONFIG_EMAC_BASE == SOCFPGA_EMAC0_ADDRESS
const int physhift = SYSMGR_EMACGRP_CTRL_PHYSEL0_LSB;
#elif CONFIG_EMAC_BASE == SOCFPGA_EMAC1_ADDRESS
const int physhift = SYSMGR_EMACGRP_CTRL_PHYSEL1_LSB;
#else
#error "Incorrect CONFIG_EMAC_BASE value!"
#endif
/* Initialize EMAC. This needs to be done at least once per boot. */
/*
* Putting the EMAC controller to reset when configuring the PHY
* interface select at System Manager
*/
socfpga_emac_reset(1);
/* Clearing emac0 PHY interface select to 0 */
clrbits_le32(&sysmgr_regs->emacgrp_ctrl,
SYSMGR_EMACGRP_CTRL_PHYSEL_MASK << physhift);
/* configure to PHY interface select choosed */
setbits_le32(&sysmgr_regs->emacgrp_ctrl,
SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RGMII << physhift);
/* Release the EMAC controller from reset */
socfpga_emac_reset(0);
/* initialize and register the emac */
return designware_initialize(CONFIG_EMAC_BASE,
CONFIG_PHY_INTERFACE_MODE);
}
#endif
#ifdef CONFIG_DWMMC
/*
* Initializes MMC controllers.
* to override, implement board_mmc_init()
*/
int cpu_mmc_init(bd_t *bis)
{
return socfpga_dwmmc_init(SOCFPGA_SDMMC_ADDRESS,
CONFIG_HPS_SDMMC_BUSWIDTH, 0);
}
#endif
#if defined(CONFIG_DISPLAY_CPUINFO)
/*
* Print CPU information
*/
int print_cpuinfo(void)
{
puts("CPU: Altera SoCFPGA Platform\n");
return 0;
}
#endif
#if defined(CONFIG_SYS_CONSOLE_IS_IN_ENV) && \
defined(CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE)
int overwrite_console(void)
{
return 0;
}
#endif
#ifdef CONFIG_FPGA
/*
* FPGA programming support for SoC FPGA Cyclone V
*/
static Altera_desc altera_fpga[] = {
{
/* Family */
Altera_SoCFPGA,
/* Interface type */
fast_passive_parallel,
/* No limitation as additional data will be ignored */
-1,
/* No device function table */
NULL,
/* Base interface address specified in driver */
NULL,
/* No cookie implementation */
0
},
};
/* add device descriptor to FPGA device table */
static void socfpga_fpga_add(void)
{
int i;
fpga_init();
for (i = 0; i < ARRAY_SIZE(altera_fpga); i++)
fpga_add(fpga_altera, &altera_fpga[i]);
}
#else
static inline void socfpga_fpga_add(void) {}
#endif
int arch_cpu_init(void)
{
/*
* If the HW watchdog is NOT enabled, make sure it is not running,
* for example because it was enabled in the preloader. This might
* trigger a watchdog-triggered reboot of Linux kernel later.
*/
#ifndef CONFIG_HW_WATCHDOG
socfpga_watchdog_reset();
#endif
return 0;
}
/*
* Convert all NIC-301 AMBA slaves from secure to non-secure
*/
static void socfpga_nic301_slave_ns(void)
{
writel(0x1, &nic301_regs->lwhps2fpgaregs);
writel(0x1, &nic301_regs->hps2fpgaregs);
writel(0x1, &nic301_regs->acp);
writel(0x1, &nic301_regs->rom);
writel(0x1, &nic301_regs->ocram);
writel(0x1, &nic301_regs->sdrdata);
}
int misc_init_r(void)
{
socfpga_bridges_reset(1);
socfpga_nic301_slave_ns();
/*
* Private components security:
* U-Boot : configure private timer, global timer and cpu component
* access as non secure for kernel stage (as required by Linux)
*/
setbits_le32(&scu_regs->sacr, 0xfff);
/* Configure the L2 controller to make SDRAM start at 0 */
#ifdef CONFIG_SOCFPGA_VIRTUAL_TARGET
writel(0x2, &nic301_regs->remap);
#else
writel(0x1, &nic301_regs->remap); /* remap.mpuzero */
writel(0x1, &pl310->pl310_addr_filter_start);
#endif
/* Add device descriptor to FPGA device table */
socfpga_fpga_add();
return 0;
}