/*
 * Copyright 2007,2009-2010 Freescale Semiconductor, Inc.
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * 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., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <common.h>
#include <command.h>
#include <pci.h>
#include <asm/processor.h>
#include <asm/immap_86xx.h>
#include <asm/fsl_pci.h>
#include <asm/fsl_ddr_sdram.h>
#include <i2c.h>
#include <asm/io.h>
#include <libfdt.h>
#include <fdt_support.h>
#include <spd_sdram.h>
#include <netdev.h>

void sdram_init(void);
phys_size_t fixed_sdram(void);
int mpc8610hpcd_diu_init(void);


/* called before any console output */
int board_early_init_f(void)
{
	volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
	volatile ccsr_gur_t *gur = &immap->im_gur;

	gur->gpiocr |= 0x88aa5500; /* DIU16, IR1, UART0, UART2 */

	return 0;
}

int misc_init_r(void)
{
	u8 tmp_val, version;
	u8 *pixis_base = (u8 *)PIXIS_BASE;

	/*Do not use 8259PIC*/
	tmp_val = in_8(pixis_base + PIXIS_BRDCFG0);
	out_8(pixis_base + PIXIS_BRDCFG0, tmp_val | 0x80);

	/*For FPGA V7 or higher, set the IRQMAPSEL to 0 to use MAP0 interrupt*/
	version = in_8(pixis_base + PIXIS_PVER);
	if(version >= 0x07) {
		tmp_val = in_8(pixis_base + PIXIS_BRDCFG0);
		out_8(pixis_base + PIXIS_BRDCFG0, tmp_val & 0xbf);
	}

	/* Using this for DIU init before the driver in linux takes over
	 *  Enable the TFP410 Encoder (I2C address 0x38)
	 */

	tmp_val = 0xBF;
	i2c_write(0x38, 0x08, 1, &tmp_val, sizeof(tmp_val));
	/* Verify if enabled */
	tmp_val = 0;
	i2c_read(0x38, 0x08, 1, &tmp_val, sizeof(tmp_val));
	debug("DVI Encoder Read: 0x%02lx\n",tmp_val);

	tmp_val = 0x10;
	i2c_write(0x38, 0x0A, 1, &tmp_val, sizeof(tmp_val));
	/* Verify if enabled */
	tmp_val = 0;
	i2c_read(0x38, 0x0A, 1, &tmp_val, sizeof(tmp_val));
	debug("DVI Encoder Read: 0x%02lx\n",tmp_val);

	return 0;
}

int checkboard(void)
{
	volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
	volatile ccsr_local_mcm_t *mcm = &immap->im_local_mcm;
	u8 *pixis_base = (u8 *)PIXIS_BASE;

	printf ("Board: MPC8610HPCD, System ID: 0x%02x, "
		"System Version: 0x%02x, FPGA Version: 0x%02x\n",
		in_8(pixis_base + PIXIS_ID), in_8(pixis_base + PIXIS_VER),
		in_8(pixis_base + PIXIS_PVER));

	mcm->abcr |= 0x00010000; /* 0 */
	mcm->hpmr3 = 0x80000008; /* 4c */
	mcm->hpmr0 = 0;
	mcm->hpmr1 = 0;
	mcm->hpmr2 = 0;
	mcm->hpmr4 = 0;
	mcm->hpmr5 = 0;

	return 0;
}


phys_size_t
initdram(int board_type)
{
	phys_size_t dram_size = 0;

#if defined(CONFIG_SPD_EEPROM)
	dram_size = fsl_ddr_sdram();
#else
	dram_size = fixed_sdram();
#endif

	setup_ddr_bat(dram_size);

	puts(" DDR: ");
	return dram_size;
}


#if !defined(CONFIG_SPD_EEPROM)
/*
 * Fixed sdram init -- doesn't use serial presence detect.
 */

phys_size_t fixed_sdram(void)
{
#if !defined(CONFIG_SYS_RAMBOOT)
	volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
	volatile ccsr_ddr_t *ddr = &immap->im_ddr1;
	uint d_init;

	ddr->cs0_bnds = 0x0000001f;
	ddr->cs0_config = 0x80010202;

	ddr->timing_cfg_3 = 0x00000000;
	ddr->timing_cfg_0 = 0x00260802;
	ddr->timing_cfg_1 = 0x3935d322;
	ddr->timing_cfg_2 = 0x14904cc8;
	ddr->sdram_mode = 0x00480432;
	ddr->sdram_mode_2 = 0x00000000;
	ddr->sdram_interval = 0x06180fff; /* 0x06180100; */
	ddr->sdram_data_init = 0xDEADBEEF;
	ddr->sdram_clk_cntl = 0x03800000;
	ddr->sdram_cfg_2 = 0x04400010;

#if defined(CONFIG_DDR_ECC)
	ddr->err_int_en = 0x0000000d;
	ddr->err_disable = 0x00000000;
	ddr->err_sbe = 0x00010000;
#endif
	asm("sync;isync");

	udelay(500);

	ddr->sdram_cfg = 0xc3000000; /* 0xe3008000;*/


#if defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
	d_init = 1;
	debug("DDR - 1st controller: memory initializing\n");
	/*
	 * Poll until memory is initialized.
	 * 512 Meg at 400 might hit this 200 times or so.
	 */
	while ((ddr->sdram_cfg_2 & (d_init << 4)) != 0)
		udelay(1000);

	debug("DDR: memory initialized\n\n");
	asm("sync; isync");
	udelay(500);
#endif

	return 512 * 1024 * 1024;
#endif
	return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
}

#endif

#if defined(CONFIG_PCI)
/*
 * Initialize PCI Devices, report devices found.
 */

#ifndef CONFIG_PCI_PNP
static struct pci_config_table pci_fsl86xxads_config_table[] = {
	{PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
	 PCI_IDSEL_NUMBER, PCI_ANY_ID,
	 pci_cfgfunc_config_device, {PCI_ENET0_IOADDR,
				 PCI_ENET0_MEMADDR,
				 PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER} },
	{}
};
#endif


static struct pci_controller pci1_hose = {
#ifndef CONFIG_PCI_PNP
config_table:pci_mpc86xxcts_config_table
#endif
};
#endif /* CONFIG_PCI */

#ifdef CONFIG_PCIE1
static struct pci_controller pcie1_hose;
#endif

#ifdef CONFIG_PCIE2
static struct pci_controller pcie2_hose;
#endif

void pci_init_board(void)
{
	volatile immap_t *immap = (immap_t *) CONFIG_SYS_CCSRBAR;
	volatile ccsr_gur_t *gur = &immap->im_gur;
	struct fsl_pci_info pci_info[3];
	u32 devdisr, pordevsr, io_sel;
	int first_free_busno = 0;
	int num = 0;

	int pci_agent, pcie_ep, pcie_configured;

	devdisr = in_be32(&gur->devdisr);
	pordevsr = in_be32(&gur->pordevsr);
	io_sel = (pordevsr & MPC8610_PORDEVSR_IO_SEL)
			>> MPC8610_PORDEVSR_IO_SEL_SHIFT;

	debug ("   pci_init_board: devdisr=%x, io_sel=%x\n", devdisr, io_sel);

#ifdef CONFIG_PCIE1
	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);

	if (pcie_configured && !(devdisr & MPC86xx_DEVDISR_PCIE1)){
		SET_STD_PCIE_INFO(pci_info[num], 1);
		pcie_ep = fsl_setup_hose(&pcie1_hose, pci_info[num].regs);
		printf ("    PCIE1 connected to ULI as %s (base addr %lx)\n",
				pcie_ep ? "Endpoint" : "Root Complex",
				pci_info[num].regs);

		first_free_busno = fsl_pci_init_port(&pci_info[num++],
					&pcie1_hose, first_free_busno);
	} else {
		printf ("    PCIE1: disabled\n");
	}

	puts("\n");
#else
	setbits_be32(&gur->devdisr, MPC86xx_DEVDISR_PCIE1); /* disable */
#endif

#ifdef CONFIG_PCIE2
	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_2, io_sel);

	if (pcie_configured && !(devdisr & MPC86xx_DEVDISR_PCIE2)){
		SET_STD_PCIE_INFO(pci_info[num], 2);
		pcie_ep = fsl_setup_hose(&pcie2_hose, pci_info[num].regs);
		printf ("    PCIE2 connected to Slot as %s (base addr %lx)\n",
				pcie_ep ? "Endpoint" : "Root Complex",
				pci_info[num].regs);
		first_free_busno = fsl_pci_init_port(&pci_info[num++],
					&pcie2_hose, first_free_busno);
	} else {
		printf ("    PCIE2: disabled\n");
	}

	puts("\n");
#else
	setbits_be32(&gur->devdisr, MPC86xx_DEVDISR_PCIE2); /* disable */
#endif

#ifdef CONFIG_PCI1
	if (!(devdisr & MPC86xx_DEVDISR_PCI1)) {
		SET_STD_PCI_INFO(pci_info[num], 1);
		pci_agent = fsl_setup_hose(&pci1_hose, pci_info[num].regs);
		printf(" PCI connected to PCI slots as %s" \
			" (base address %lx)\n",
			pci_agent ? "Agent" : "Host",
			pci_info[num].regs);
		first_free_busno = fsl_pci_init_port(&pci_info[num++],
					&pci1_hose, first_free_busno);
	} else {
		printf ("    PCI: disabled\n");
	}

	puts("\n");
#else
	setbits_be32(&gur->devdisr, MPC86xx_DEVDISR_PCI1); /* disable */
#endif
}

#if defined(CONFIG_OF_BOARD_SETUP)
void
ft_board_setup(void *blob, bd_t *bd)
{
	ft_cpu_setup(blob, bd);

	FT_FSL_PCI_SETUP;
}
#endif

/*
 * get_board_sys_clk
 * Reads the FPGA on board for CONFIG_SYS_CLK_FREQ
 */

unsigned long
get_board_sys_clk(ulong dummy)
{
	u8 i;
	ulong val = 0;
	u8 *pixis_base = (u8 *)PIXIS_BASE;

	i = in_8(pixis_base + PIXIS_SPD);
	i &= 0x07;

	switch (i) {
	case 0:
		val = 33333000;
		break;
	case 1:
		val = 39999600;
		break;
	case 2:
		val = 49999500;
		break;
	case 3:
		val = 66666000;
		break;
	case 4:
		val = 83332500;
		break;
	case 5:
		val = 99999000;
		break;
	case 6:
		val = 133332000;
		break;
	case 7:
		val = 166665000;
		break;
	}

	return val;
}

int board_eth_init(bd_t *bis)
{
	return pci_eth_init(bis);
}

void board_reset(void)
{
	u8 *pixis_base = (u8 *)PIXIS_BASE;

	out_8(pixis_base + PIXIS_RST, 0);

	while (1)
		;
}