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// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Copyright (c) 2018 Microsemi Corporation
*/
#include <common.h>
#include <asm/io.h>
#include <asm/types.h>
#include <mach/tlb.h>
#include <mach/ddr.h>
DECLARE_GLOBAL_DATA_PTR;
static inline int vcoreiii_train_bytelane(void)
{
int ret;
ret = hal_vcoreiii_train_bytelane(0);
#if defined(CONFIG_SOC_OCELOT) || defined(CONFIG_SOC_JR2)
if (ret)
return ret;
ret = hal_vcoreiii_train_bytelane(1);
#endif
return ret;
}
int vcoreiii_ddr_init(void)
{
int res;
if (!(readl(BASE_CFG + ICPU_MEMCTRL_STAT)
& ICPU_MEMCTRL_STAT_INIT_DONE)) {
hal_vcoreiii_init_memctl();
hal_vcoreiii_wait_memctl();
if (hal_vcoreiii_init_dqs() || vcoreiii_train_bytelane())
hal_vcoreiii_ddr_failed();
}
#if (CONFIG_SYS_TEXT_BASE != 0x20000000)
res = dram_check();
if (res == 0)
hal_vcoreiii_ddr_verified();
else
hal_vcoreiii_ddr_failed();
/* Clear boot-mode and read-back to activate/verify */
clrbits_le32(BASE_CFG + ICPU_GENERAL_CTRL,
ICPU_GENERAL_CTRL_BOOT_MODE_ENA);
readl(BASE_CFG + ICPU_GENERAL_CTRL);
#else
res = 0;
#endif
return res;
}
int print_cpuinfo(void)
{
printf("MSCC VCore-III MIPS 24Kec\n");
return 0;
}
int dram_init(void)
{
while (vcoreiii_ddr_init())
;
gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
return 0;
}
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