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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2014
* Dirk Eibach, Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
*/
#include <common.h>
#include <command.h>
#include <init.h>
#include <asm/processor.h>
#include <asm/io.h>
#include <asm/global_data.h>
#include <linux/delay.h>
#include "mpc8308.h"
#include <gdsys_fpga.h>
#define REFLECTION_TESTPATTERN 0xdede
#define REFLECTION_TESTPATTERN_INV (~REFLECTION_TESTPATTERN & 0xffff)
#ifdef CONFIG_SYS_FPGA_NO_RFL_HI
#define REFLECTION_TESTREG reflection_low
#else
#define REFLECTION_TESTREG reflection_high
#endif
DECLARE_GLOBAL_DATA_PTR;
#ifdef CONFIG_GDSYS_LEGACY_DRIVERS
/* as gpio output status cannot be read back, we have to buffer it locally */
u32 gpio0_out;
void setbits_gpio0_out(u32 mask)
{
immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
gpio0_out |= mask;
out_be32(&immr->gpio[0].dat, gpio0_out);
}
void clrbits_gpio0_out(u32 mask)
{
immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
gpio0_out &= ~mask;
out_be32(&immr->gpio[0].dat, gpio0_out);
}
int get_fpga_state(uint dev)
{
return gd->arch.fpga_state[dev];
}
int board_early_init_f(void)
{
uint k;
for (k = 0; k < CONFIG_SYS_FPGA_COUNT; ++k)
gd->arch.fpga_state[k] = 0;
return 0;
}
int board_early_init_r(void)
{
uint k;
uint ctr;
for (k = 0; k < CONFIG_SYS_FPGA_COUNT; ++k)
gd->arch.fpga_state[k] = 0;
/*
* reset FPGA
*/
mpc8308_init();
mpc8308_set_fpga_reset(1);
mpc8308_setup_hw();
for (k = 0; k < CONFIG_SYS_FPGA_COUNT; ++k) {
ctr = 0;
while (!mpc8308_get_fpga_done(k)) {
mdelay(100);
if (ctr++ > 5) {
gd->arch.fpga_state[k] |=
FPGA_STATE_DONE_FAILED;
break;
}
}
}
udelay(10);
mpc8308_set_fpga_reset(0);
for (k = 0; k < CONFIG_SYS_FPGA_COUNT; ++k) {
/*
* wait for fpga out of reset
*/
ctr = 0;
while (1) {
u16 val;
FPGA_SET_REG(k, reflection_low, REFLECTION_TESTPATTERN);
FPGA_GET_REG(k, REFLECTION_TESTREG, &val);
if (val == REFLECTION_TESTPATTERN_INV)
break;
mdelay(100);
if (ctr++ > 5) {
gd->arch.fpga_state[k] |=
FPGA_STATE_REFLECTION_FAILED;
break;
}
}
}
return 0;
}
#endif
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