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/*
* Copyright (C) 2007 Freescale Semiconductor, Inc.
*
* Copyright (C) 2011 Matrix Vision GmbH
* Andre Schwarz <andre.schwarz@matrix-vision.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <hwconfig.h>
#include <i2c.h>
#include <spi.h>
#include <asm/io.h>
#include <asm/fsl_mpc83xx_serdes.h>
#include <fdt_support.h>
#include <spd_sdram.h>
#include "mergerbox.h"
#include "fpga.h"
#include "../common/mv_common.h"
static void setup_serdes(void)
{
fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_SATA,
FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
fsl_setup_serdes(CONFIG_FSL_SERDES2, FSL_SERDES_PROTO_PEX,
FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
}
#if defined(CONFIG_SYS_DRAM_TEST)
int testdram(void)
{
uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
uint *p;
printf("Testing DRAM from 0x%08x to 0x%08x\n",
CONFIG_SYS_MEMTEST_START, CONFIG_SYS_MEMTEST_END);
printf("DRAM test phase 1:\n");
for (p = pstart; p < pend; p++)
*p = 0xaaaaaaaa;
for (p = pstart; p < pend; p++) {
if (*p != 0xaaaaaaaa) {
printf("DRAM test fails at: %08x\n", (uint) p);
return 1;
}
}
printf("DRAM test phase 2:\n");
for (p = pstart; p < pend; p++)
*p = 0x55555555;
for (p = pstart; p < pend; p++) {
if (*p != 0x55555555) {
printf("DRAM test fails at: %08x\n", (uint) p);
return 1;
}
}
printf("DRAM test passed.\n");
return 0;
}
#endif
phys_size_t initdram(int board_type)
{
u32 msize;
volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
volatile clk83xx_t *clk = (clk83xx_t *)&immr->clk;
/* Enable PCI_CLK[0:1] */
clk->occr |= 0xc0000000;
udelay(2000);
#if defined(CONFIG_SPD_EEPROM)
msize = spd_sdram();
#else
immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
u32 msize_log2;
msize = CONFIG_SYS_DDR_SIZE;
msize_log2 = __ilog2(msize);
im->sysconf.ddrlaw[0].bar = CONFIG_SYS_DDR_SDRAM_BASE & 0xfffff000;
im->sysconf.ddrlaw[0].ar = LBLAWAR_EN | (msize_log2 - 1);
im->sysconf.ddrcdr = CONFIG_SYS_DDRCDR_VALUE;
udelay(50000);
im->ddr.sdram_clk_cntl = CONFIG_SYS_DDR_SDRAM_CLK_CNTL;
udelay(1000);
im->ddr.csbnds[0].csbnds = CONFIG_SYS_DDR_CS0_BNDS;
im->ddr.cs_config[0] = CONFIG_SYS_DDR_CS0_CONFIG;
udelay(1000);
im->ddr.timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0;
im->ddr.timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
im->ddr.timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
im->ddr.timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3;
im->ddr.sdram_cfg = CONFIG_SYS_DDR_SDRAM_CFG;
im->ddr.sdram_cfg2 = CONFIG_SYS_DDR_SDRAM_CFG2;
im->ddr.sdram_mode = CONFIG_SYS_DDR_MODE;
im->ddr.sdram_mode2 = CONFIG_SYS_DDR_MODE2;
im->ddr.sdram_interval = CONFIG_SYS_DDR_INTERVAL;
__asm__ __volatile__("sync");
udelay(1000);
im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
udelay(2000);
#endif
setup_serdes();
return msize << 20;
}
int checkboard(void)
{
puts("Board: Matrix Vision MergerBox\n");
return 0;
}
int misc_init_r(void)
{
u16 dim;
int result;
volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
volatile gpio83xx_t *gpio = (gpio83xx_t *)&immr->gpio[1];
unsigned char mac[6], mac_verify[6];
char *s = getenv("reset_env");
for (dim = 10; dim < 180; dim += 5) {
mergerbox_tft_dim(dim);
udelay(100000);
}
if (s)
mv_reset_environment();
i2c_read(SPD_EEPROM_ADDRESS, 0x80, 2, mac, sizeof(mac));
/* check if Matrix Vision prefix present and export to env */
if (mac[0] == 0x00 && mac[1] == 0x0c && mac[2] == 0x8d) {
printf("valid MAC found in eeprom: %pM\n", mac);
eth_setenv_enetaddr("ethaddr", mac);
} else {
printf("no valid MAC found in eeprom.\n");
/* no: check the env */
if (!eth_getenv_enetaddr("ethaddr", mac)) {
printf("no valid MAC found in env either.\n");
/* TODO: ask for valid MAC */
} else {
printf("valid MAC found in env: %pM\n", mac);
printf("updating MAC in eeprom.\n");
do {
result = test_and_clear_bit(20, &gpio->dat);
if (result)
printf("unprotect EEPROM failed !\n");
udelay(20000);
} while(result);
i2c_write(SPD_EEPROM_ADDRESS, 0x80, 2, mac, 6);
udelay(20000);
do {
result = test_and_set_bit(20, &gpio->dat);
if (result)
printf("protect EEPROM failed !\n");
udelay(20000);
} while(result);
printf("verify MAC %pM ... ", mac);
i2c_read(SPD_EEPROM_ADDRESS, 0x80, 2, mac_verify, 6);
if (!strncmp((char *)mac, (char *)mac_verify, 6))
printf("ok.\n");
else
/* TODO: retry or do something useful */
printf("FAILED (got %pM) !\n", mac_verify);
}
}
return 0;
}
int spi_cs_is_valid(unsigned int bus, unsigned int cs)
{
return bus == 0 && cs == 0;
}
void spi_cs_activate(struct spi_slave *slave)
{
volatile gpio83xx_t *iopd = &((immap_t *)CONFIG_SYS_IMMR)->gpio[0];
iopd->dat &= ~TFT_SPI_CPLD_CS;
}
void spi_cs_deactivate(struct spi_slave *slave)
{
volatile gpio83xx_t *iopd = &((immap_t *)CONFIG_SYS_IMMR)->gpio[0];
iopd->dat |= TFT_SPI_CPLD_CS;
}
/* control backlight pwm (display brightness).
* allow values 0-250 with 0 = turn off and 250 = max brightness
*/
void mergerbox_tft_dim(u16 value)
{
struct spi_slave *slave;
u16 din;
u16 dout = 0;
if (value > 0 && value < 250)
dout = 0x4000 | value;
slave = spi_setup_slave(0, 0, 1000000, SPI_MODE_0 | SPI_CS_HIGH);
spi_claim_bus(slave);
spi_xfer(slave, 16, &dout, &din, SPI_XFER_BEGIN | SPI_XFER_END);
spi_release_bus(slave);
spi_free_slave(slave);
}
void ft_board_setup(void *blob, bd_t *bd)
{
ft_cpu_setup(blob, bd);
fdt_fixup_dr_usb(blob, bd);
ft_pci_setup(blob, bd);
}
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