mpc8308rdb.c
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/*
* Copyright (C) 2010 Freescale Semiconductor, Inc.
* Copyright (C) 2010 Ilya Yanok, Emcraft Systems, yanok@emcraft.com
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <hwconfig.h>
#include <i2c.h>
#include <spi.h>
#include <libfdt.h>
#include <fdt_support.h>
#include <pci.h>
#include <mpc83xx.h>
#include <vsc7385.h>
#include <netdev.h>
#include <fsl_esdhc.h>
#include <asm/io.h>
#include <asm/fsl_serdes.h>
#include <asm/fsl_mpc83xx_serdes.h>
DECLARE_GLOBAL_DATA_PTR;
/*
* The following are used to control the SPI chip selects for the SPI command.
*/
#ifdef CONFIG_MPC8XXX_SPI
#define SPI_CS_MASK 0x00400000
int spi_cs_is_valid(unsigned int bus, unsigned int cs)
{
return bus == 0 && cs == 0;
}
void spi_cs_activate(struct spi_slave *slave)
{
immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
/* active low */
clrbits_be32(&immr->gpio[0].dat, SPI_CS_MASK);
}
void spi_cs_deactivate(struct spi_slave *slave)
{
immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
/* inactive high */
setbits_be32(&immr->gpio[0].dat, SPI_CS_MASK);
}
#endif /* CONFIG_MPC8XXX_SPI */
#ifdef CONFIG_FSL_ESDHC
int board_mmc_init(bd_t *bd)
{
return fsl_esdhc_mmc_init(bd);
}
#endif
static u8 read_board_info(void)
{
u8 val8;
i2c_set_bus_num(0);
if (i2c_read(CONFIG_SYS_I2C_PCF8574A_ADDR, 0, 0, &val8, 1) == 0)
return val8;
else
return 0;
}
int checkboard(void)
{
static const char * const rev_str[] = {
"1.0",
"<reserved>",
"<reserved>",
"<reserved>",
"<unknown>",
};
u8 info;
int i;
info = read_board_info();
i = (!info) ? 4 : info & 0x03;
printf("Board: Freescale MPC8308RDB Rev %s\n", rev_str[i]);
return 0;
}
static struct pci_region pcie_regions_0[] = {
{
.bus_start = CONFIG_SYS_PCIE1_MEM_BASE,
.phys_start = CONFIG_SYS_PCIE1_MEM_PHYS,
.size = CONFIG_SYS_PCIE1_MEM_SIZE,
.flags = PCI_REGION_MEM,
},
{
.bus_start = CONFIG_SYS_PCIE1_IO_BASE,
.phys_start = CONFIG_SYS_PCIE1_IO_PHYS,
.size = CONFIG_SYS_PCIE1_IO_SIZE,
.flags = PCI_REGION_IO,
},
};
void pci_init_board(void)
{
immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
sysconf83xx_t *sysconf = &immr->sysconf;
law83xx_t *pcie_law = sysconf->pcielaw;
struct pci_region *pcie_reg[] = { pcie_regions_0 };
fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_PEX,
FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
/* Deassert the resets in the control register */
out_be32(&sysconf->pecr1, 0xE0008000);
udelay(2000);
/* Configure PCI Express Local Access Windows */
out_be32(&pcie_law[0].bar, CONFIG_SYS_PCIE1_BASE & LAWBAR_BAR);
out_be32(&pcie_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB);
mpc83xx_pcie_init(1, pcie_reg);
}
/*
* Miscellaneous late-boot configurations
*
* If a VSC7385 microcode image is present, then upload it.
*/
int misc_init_r(void)
{
#ifdef CONFIG_MPC8XXX_SPI
immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
sysconf83xx_t *sysconf = &immr->sysconf;
/*
* Set proper bits in SICRH to allow SPI on header J8
*
* NOTE: this breaks the TSEC2 interface, attached to the Vitesse
* switch. The pinmux configuration does not have a fine enough
* granularity to support both simultaneously.
*/
clrsetbits_be32(&sysconf->sicrh, SICRH_GPIO_A_TSEC2, SICRH_GPIO_A_GPIO);
puts("WARNING: SPI enabled, TSEC2 support is broken\n");
/* Set header J8 SPI chip select output, disabled */
setbits_be32(&immr->gpio[0].dir, SPI_CS_MASK);
setbits_be32(&immr->gpio[0].dat, SPI_CS_MASK);
#endif
#ifdef CONFIG_VSC7385_IMAGE
if (vsc7385_upload_firmware((void *) CONFIG_VSC7385_IMAGE,
CONFIG_VSC7385_IMAGE_SIZE)) {
puts("Failure uploading VSC7385 microcode.\n");
return 1;
}
#endif
return 0;
}
#if defined(CONFIG_OF_BOARD_SETUP)
void ft_board_setup(void *blob, bd_t *bd)
{
ft_cpu_setup(blob, bd);
fdt_fixup_dr_usb(blob, bd);
fdt_fixup_esdhc(blob, bd);
}
#endif
int board_eth_init(bd_t *bis)
{
int rv, num_if = 0;
/* Initialize TSECs first */
rv = cpu_eth_init(bis);
if (rv >= 0)
num_if += rv;
else
printf("ERROR: failed to initialize TSECs.\n");
rv = pci_eth_init(bis);
if (rv >= 0)
num_if += rv;
else
printf("ERROR: failed to initialize PCI Ethernet.\n");
return num_if;
}