// SPDX-License-Identifier: GPL-2.0-only
/*
 * arch/arm/mach-spear3xx/spear3xx.c
 *
 * SPEAr3XX machines common source file
 *
 * Copyright (C) 2009-2012 ST Microelectronics
 * Viresh Kumar <vireshk@kernel.org>
 */

#define pr_fmt(fmt) "SPEAr3xx: " fmt

#include <linux/amba/pl022.h>
#include <linux/amba/pl080.h>
#include <linux/clk.h>
#include <linux/clk/spear.h>
#include <linux/io.h>
#include <asm/mach/map.h>
#include "pl080.h"
#include "generic.h"
#include "spear.h"
#include "misc_regs.h"

/* ssp device registration */
struct pl022_ssp_controller pl022_plat_data = {
        .bus_id = 0,
        .enable_dma = 1,
        .dma_filter = pl08x_filter_id,
        .dma_tx_param = "ssp0_tx",
        .dma_rx_param = "ssp0_rx",
};

/* dmac device registration */
struct pl08x_platform_data pl080_plat_data = {
        .memcpy_burst_size = PL08X_BURST_SZ_16,
        .memcpy_bus_width = PL08X_BUS_WIDTH_32_BITS,
        .memcpy_prot_buff = true,
        .memcpy_prot_cache = true,
        .lli_buses = PL08X_AHB1,
        .mem_buses = PL08X_AHB1,
        .get_xfer_signal = pl080_get_signal,
        .put_xfer_signal = pl080_put_signal,
};

/*
 * Following will create 16MB static virtual/physical mappings
 * PHYSICAL             VIRTUAL
 * 0xD0000000           0xFD000000
 * 0xFC000000           0xFC000000
 */
struct map_desc spear3xx_io_desc[] __initdata = {
        {
                .virtual        = (unsigned long)VA_SPEAR_ICM1_2_BASE,
                .pfn            = __phys_to_pfn(SPEAR_ICM1_2_BASE),
                .length         = SZ_16M,
                .type           = MT_DEVICE
        }, {
                .virtual        = (unsigned long)VA_SPEAR_ICM3_SMI_CTRL_BASE,
                .pfn            = __phys_to_pfn(SPEAR_ICM3_SMI_CTRL_BASE),
                .length         = SZ_16M,
                .type           = MT_DEVICE
        },
};

/* This will create static memory mapping for selected devices */
void __init spear3xx_map_io(void)
{
        iotable_init(spear3xx_io_desc, ARRAY_SIZE(spear3xx_io_desc));
}

void __init spear3xx_timer_init(void)
{
        char pclk_name[] = "pll3_clk";
        struct clk *gpt_clk, *pclk;

        spear3xx_clk_init(MISC_BASE, VA_SPEAR320_SOC_CONFIG_BASE);

        /* get the system timer clock */
        gpt_clk = clk_get_sys("gpt0", NULL);
        if (IS_ERR(gpt_clk)) {
                pr_err("%s:couldn't get clk for gpt\n", __func__);
                BUG();
        }

        /* get the suitable parent clock for timer*/
        pclk = clk_get(NULL, pclk_name);
        if (IS_ERR(pclk)) {
                pr_err("%s:couldn't get %s as parent for gpt\n",
                                __func__, pclk_name);
                BUG();
        }

        clk_set_parent(gpt_clk, pclk);
        clk_put(gpt_clk);
        clk_put(pclk);

        spear_setup_of_timer();
}