/*
 * Copyright 2009 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 <asm/processor.h>
#include <asm/mmu.h>
#include <asm/cache.h>
#include <asm/immap_85xx.h>
#include <asm/io.h>
#include <miiphy.h>
#include <libfdt.h>
#include <fdt_support.h>
#include <tsec.h>
#include <vsc7385.h>
#include <netdev.h>

DECLARE_GLOBAL_DATA_PTR;

#define VSC7385_RST_SET         0x00080000
#define SLIC_RST_SET            0x00040000
#define SGMII_PHY_RST_SET       0x00020000
#define PCIE_RST_SET            0x00010000
#define RGMII_PHY_RST_SET       0x02000000

#define USB_RST_CLR             0x04000000

#define GPIO_DIR                0x060f0000

#define BOARD_PERI_RST_SET      VSC7385_RST_SET | SLIC_RST_SET | \
                                SGMII_PHY_RST_SET | PCIE_RST_SET | \
                                RGMII_PHY_RST_SET

#define SYSCLK_MASK     0x00200000
#define BOARDREV_MASK   0x10100000
#define BOARDREV_B      0x10100000
#define BOARDREV_C      0x00100000

#define SYSCLK_66       66666666
#define SYSCLK_50       50000000
#define SYSCLK_100      100000000

unsigned long get_board_sys_clk(ulong dummy)
{
        volatile ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR);
        u32 val_gpdat, sysclk_gpio, board_rev_gpio;

        val_gpdat = pgpio->gpdat;
        sysclk_gpio = val_gpdat & SYSCLK_MASK;
        board_rev_gpio = val_gpdat & BOARDREV_MASK;
        if (board_rev_gpio == BOARDREV_C) {
                if(sysclk_gpio == 0)
                        return SYSCLK_66;
                else
                        return SYSCLK_100;
        } else if (board_rev_gpio == BOARDREV_B) {
                if(sysclk_gpio == 0)
                        return SYSCLK_66;
                else
                        return SYSCLK_50;
        }
        return 0;
}

#ifdef CONFIG_MMC
int board_early_init_f (void)
{
        volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);

        setbits_be32(&gur->pmuxcr,
                        (MPC85xx_PMUXCR_SDHC_CD |
                         MPC85xx_PMUXCR_SDHC_WP));
        return 0;
}
#endif

int checkboard (void)
{
        u32 val_gpdat, board_rev_gpio;
        volatile ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR);
        char board_rev = 0;
        struct cpu_type *cpu;

        val_gpdat = pgpio->gpdat;
        board_rev_gpio = val_gpdat & BOARDREV_MASK;
        if (board_rev_gpio == BOARDREV_C)
                board_rev = 'C';
        else if (board_rev_gpio == BOARDREV_B)
                board_rev = 'B';
        else
                panic ("Unexpected Board REV %x detected!!\n", board_rev_gpio);

        cpu = gd->cpu;
        printf ("Board: %sRDB Rev%c\n", cpu->name, board_rev);
        setbits_be32(&pgpio->gpdir, GPIO_DIR);

/*
 * Bringing the following peripherals out of reset via GPIOs
 * 0 = reset and 1 = out of reset
 * GPIO12 - Reset to Ethernet Switch
 * GPIO13 - Reset to SLIC/SLAC devices
 * GPIO14 - Reset to SGMII_PHY_N
 * GPIO15 - Reset to PCIe slots
 * GPIO6  - Reset to RGMII PHY
 * GPIO5  - Reset to USB3300 devices 1 = reset and 0 = out of reset
 */
        clrsetbits_be32(&pgpio->gpdat, USB_RST_CLR, BOARD_PERI_RST_SET);

        return 0;
}

int board_early_init_r(void)
{
        const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
        const u8 flash_esel = find_tlb_idx((void *)flashbase, 1);

        /*
         * Remap Boot flash region to caching-inhibited
         * so that flash can be erased properly.
         */

        /* Flush d-cache and invalidate i-cache of any FLASH data */
        flush_dcache();
        invalidate_icache();

        /* invalidate existing TLB entry for flash */
        disable_tlb(flash_esel);

        set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS,
                        MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
                        0, flash_esel, BOOKE_PAGESZ_16M, 1);
        return 0;
}


#ifdef CONFIG_TSEC_ENET
int board_eth_init(bd_t *bis)
{
        struct tsec_info_struct tsec_info[4];
        volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
        int num = 0;
        char *tmp;
        unsigned int vscfw_addr;

#ifdef CONFIG_TSEC1
        SET_STD_TSEC_INFO(tsec_info[num], 1);
        num++;
#endif
#ifdef CONFIG_TSEC2
        SET_STD_TSEC_INFO(tsec_info[num], 2);
        num++;
#endif
#ifdef CONFIG_TSEC3
        SET_STD_TSEC_INFO(tsec_info[num], 3);
        if (!(gur->pordevsr & MPC85xx_PORDEVSR_SGMII3_DIS))
                tsec_info[num].flags |= TSEC_SGMII;
        num++;
#endif
        if (!num) {
                printf("No TSECs initialized\n");
                return 0;
        }
#ifdef CONFIG_VSC7385_ENET
/* If a VSC7385 microcode image is present, then upload it. */
        if ((tmp = getenv ("vscfw_addr")) != NULL) {
                vscfw_addr = simple_strtoul (tmp, NULL, 16);
                printf("uploading VSC7385 microcode from %x\n", vscfw_addr);
                if (vsc7385_upload_firmware((void *) vscfw_addr,
                                        CONFIG_VSC7385_IMAGE_SIZE))
                        puts("Failure uploading VSC7385 microcode.\n");
        } else
                puts("No address specified for VSC7385 microcode.\n");
#endif

        tsec_eth_init(bis, tsec_info, num);

        return pci_eth_init(bis);
}
#endif

#if defined(CONFIG_OF_BOARD_SETUP)
void ft_board_setup(void *blob, bd_t *bd)
{
        phys_addr_t base;
        phys_size_t size;

        ft_cpu_setup(blob, bd);

        base = getenv_bootm_low();
        size = getenv_bootm_size();

        fdt_fixup_memory(blob, (u64)base, (u64)size);
}
#endif

#ifdef CONFIG_MP
extern void cpu_mp_lmb_reserve(struct lmb *lmb);

void board_lmb_reserve(struct lmb *lmb)
{
        cpu_mp_lmb_reserve(lmb);
}
#endif