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/*
* Copyright (C) 2011
* Stefano Babic, DENX Software Engineering, sbabic@denx.de.
*
* Copyright (C) 2009 TechNexion Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc.
*/
#include <common.h>
#include <netdev.h>
#include <fpga.h>
#include <asm/io.h>
#include <asm/arch/mem.h>
#include <asm/arch/mux.h>
#include <asm/arch/sys_proto.h>
#include <asm/omap_gpio.h>
#include <asm/arch/mmc_host_def.h>
#include <i2c.h>
#include <spartan3.h>
#include <asm/gpio.h>
#ifdef CONFIG_USB_EHCI
#include <usb.h>
#include <asm/ehci-omap.h>
#endif
#include "mt_ventoux.h"
DECLARE_GLOBAL_DATA_PTR;
#ifndef CONFIG_FPGA
#error "The Teejet mt_ventoux must have CONFIG_FPGA enabled"
#endif
#define FPGA_RESET 62
#define FPGA_PROG 116
#define FPGA_CCLK 117
#define FPGA_DIN 118
#define FPGA_INIT 119
#define FPGA_DONE 154
/* Timing definitions for FPGA */
static const u32 gpmc_fpga[] = {
FPGA_GPMC_CONFIG1,
FPGA_GPMC_CONFIG2,
FPGA_GPMC_CONFIG3,
FPGA_GPMC_CONFIG4,
FPGA_GPMC_CONFIG5,
FPGA_GPMC_CONFIG6,
};
#ifdef CONFIG_USB_EHCI
static struct omap_usbhs_board_data usbhs_bdata = {
.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
};
int ehci_hcd_init(void)
{
return omap_ehci_hcd_init(&usbhs_bdata);
}
int ehci_hcd_stop(void)
{
return omap_ehci_hcd_stop();
}
#endif
static inline void fpga_reset(int nassert)
{
gpio_set_value(FPGA_RESET, !nassert);
}
int fpga_pgm_fn(int nassert, int nflush, int cookie)
{
debug("%s:%d: FPGA PROGRAM ", __func__, __LINE__);
gpio_set_value(FPGA_PROG, !nassert);
return nassert;
}
int fpga_init_fn(int cookie)
{
return !gpio_get_value(FPGA_INIT);
}
int fpga_done_fn(int cookie)
{
return gpio_get_value(FPGA_DONE);
}
int fpga_pre_config_fn(int cookie)
{
debug("%s:%d: FPGA pre-configuration\n", __func__, __LINE__);
/* Setting GPIOs for programming Mode */
gpio_request(FPGA_RESET, "FPGA_RESET");
gpio_direction_output(FPGA_RESET, 1);
gpio_request(FPGA_PROG, "FPGA_PROG");
gpio_direction_output(FPGA_PROG, 1);
gpio_request(FPGA_CCLK, "FPGA_CCLK");
gpio_direction_output(FPGA_CCLK, 1);
gpio_request(FPGA_DIN, "FPGA_DIN");
gpio_direction_output(FPGA_DIN, 0);
gpio_request(FPGA_INIT, "FPGA_INIT");
gpio_direction_input(FPGA_INIT);
gpio_request(FPGA_DONE, "FPGA_DONE");
gpio_direction_input(FPGA_DONE);
/* Be sure that signal are deasserted */
gpio_set_value(FPGA_RESET, 1);
gpio_set_value(FPGA_PROG, 1);
return 0;
}
int fpga_post_config_fn(int cookie)
{
debug("%s:%d: FPGA post-configuration\n", __func__, __LINE__);
fpga_reset(TRUE);
udelay(100);
fpga_reset(FALSE);
return 0;
}
/* Write program to the FPGA */
int fpga_wr_fn(int nassert_write, int flush, int cookie)
{
gpio_set_value(FPGA_DIN, nassert_write);
return nassert_write;
}
int fpga_clk_fn(int assert_clk, int flush, int cookie)
{
gpio_set_value(FPGA_CCLK, assert_clk);
return assert_clk;
}
Xilinx_Spartan3_Slave_Serial_fns mt_ventoux_fpga_fns = {
fpga_pre_config_fn,
fpga_pgm_fn,
fpga_clk_fn,
fpga_init_fn,
fpga_done_fn,
fpga_wr_fn,
fpga_post_config_fn,
};
Xilinx_desc fpga = XILINX_XC6SLX4_DESC(slave_serial,
(void *)&mt_ventoux_fpga_fns, 0);
/* Initialize the FPGA */
static void mt_ventoux_init_fpga(void)
{
fpga_pre_config_fn(0);
/* Setting CS1 for FPGA access */
enable_gpmc_cs_config(gpmc_fpga, &gpmc_cfg->cs[1],
FPGA_BASE_ADDR, GPMC_SIZE_128M);
fpga_init();
fpga_add(fpga_xilinx, &fpga);
}
/*
* Routine: board_init
* Description: Early hardware init.
*/
int board_init(void)
{
gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
/* boot param addr */
gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
mt_ventoux_init_fpga();
return 0;
}
/*
* Routine: set_muxconf_regs
* Description: Setting up the configuration Mux registers specific to the
* hardware. Many pins need to be moved from protect to primary
* mode.
*/
void set_muxconf_regs(void)
{
MUX_MT_VENTOUX();
}
/*
* Initializes on-chip ethernet controllers.
* to override, implement board_eth_init()
*/
int board_eth_init(bd_t *bis)
{
davinci_emac_initialize();
return 0;
}
#if defined(CONFIG_OMAP_HSMMC) && \
!defined(CONFIG_SPL_BUILD)
int board_mmc_init(bd_t *bis)
{
return omap_mmc_init(0, 0, 0);
}
#endif
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