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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2018 MediaTek Inc.
* Author: Ryder Lee <ryder.lee@mediatek.com>
*/
#include <clk.h>
#include <common.h>
#include <dm.h>
#include <fdtdec.h>
#include <init.h>
#include <log.h>
#include <ram.h>
#include <asm/arch/misc.h>
#include <asm/sections.h>
#include <dm/uclass.h>
#include <linux/io.h>
#include <dt-bindings/clock/mt7629-clk.h>
#define L2_CFG_BASE 0x10200000
#define L2_CFG_SIZE 0x1000
#define L2_SHARE_CFG_MP0 0x7f0
#define L2_SHARE_MODE_OFF BIT(8)
DECLARE_GLOBAL_DATA_PTR;
int mtk_pll_early_init(void)
{
unsigned long pll_rates[] = {
[CLK_APMIXED_ARMPLL] = 1250000000,
[CLK_APMIXED_MAINPLL] = 1120000000,
[CLK_APMIXED_UNIV2PLL] = 1200000000,
[CLK_APMIXED_ETH1PLL] = 500000000,
[CLK_APMIXED_ETH2PLL] = 700000000,
[CLK_APMIXED_SGMIPLL] = 650000000,
};
struct udevice *dev;
int ret, i;
ret = uclass_get_device_by_driver(UCLASS_CLK,
DM_GET_DRIVER(mtk_clk_apmixedsys), &dev);
if (ret)
return ret;
/* configure default rate then enable apmixedsys */
for (i = 0; i < ARRAY_SIZE(pll_rates); i++) {
struct clk clk = { .id = i, .dev = dev };
ret = clk_set_rate(&clk, pll_rates[i]);
if (ret)
return ret;
ret = clk_enable(&clk);
if (ret)
return ret;
}
/* setup mcu bus */
ret = uclass_get_device_by_driver(UCLASS_SYSCON,
DM_GET_DRIVER(mtk_mcucfg), &dev);
if (ret)
return ret;
return 0;
}
int mtk_soc_early_init(void)
{
struct udevice *dev;
int ret;
/* initialize early clocks */
ret = mtk_pll_early_init();
if (ret)
return ret;
ret = uclass_first_device_err(UCLASS_RAM, &dev);
if (ret)
return ret;
return 0;
}
int mach_cpu_init(void)
{
void __iomem *base;
base = ioremap(L2_CFG_BASE, L2_CFG_SIZE);
/* disable L2C shared mode */
writel(L2_SHARE_MODE_OFF, base + L2_SHARE_CFG_MP0);
return 0;
}
int dram_init(void)
{
struct ram_info ram;
struct udevice *dev;
int ret;
ret = uclass_first_device_err(UCLASS_RAM, &dev);
if (ret)
return ret;
ret = ram_get_info(dev, &ram);
if (ret)
return ret;
debug("RAM init base=%lx, size=%x\n", ram.base, ram.size);
gd->ram_size = ram.size;
return 0;
}
int print_cpuinfo(void)
{
void __iomem *chipid;
u32 hwcode, swver;
chipid = ioremap(VER_BASE, VER_SIZE);
hwcode = readl(chipid + APHW_CODE);
swver = readl(chipid + APSW_VER);
printf("CPU: MediaTek MT%04x E%d\n", hwcode, (swver & 0xf) + 1);
return 0;
}
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