uboot/u-boot-stm32mp-2020.01/arch/powerpc/cpu/mpc83xx/fdt.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright 2007 Freescale Semiconductor, Inc.
 *
 * (C) Copyright 2000
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 */

#include <common.h>
#include <linux/libfdt.h>
#include <fdt_support.h>
#include <asm/processor.h>

extern void ft_qe_setup(void *blob);

DECLARE_GLOBAL_DATA_PTR;

#if defined(CONFIG_BOOTCOUNT_LIMIT) && \
	(defined(CONFIG_QE) && !defined(CONFIG_ARCH_MPC831X))
#include <linux/immap_qe.h>

void fdt_fixup_muram (void *blob)
{
	ulong data[2];

	data[0] = 0;
	data[1] = QE_MURAM_SIZE - 2 * sizeof(unsigned long);
	do_fixup_by_compat(blob, "fsl,qe-muram-data", "reg",
			data, sizeof (data), 0);
}
#endif

void ft_cpu_setup(void *blob, bd_t *bd)
{
	immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
	int spridr = immr->sysconf.spridr;

	/*
	 * delete crypto node if not on an E-processor
	 * initial revisions of the MPC834xE/6xE have the original SEC 2.0.
	 * EA revisions got the SEC uprevved to 2.4 but since the default device
	 * tree contains SEC 2.0 properties we uprev them here.
	 */
	if (!IS_E_PROCESSOR(spridr))
		fdt_fixup_crypto_node(blob, 0);
	else if (IS_E_PROCESSOR(spridr) &&
		 (SPR_FAMILY(spridr) == SPR_834X_FAMILY ||
		  SPR_FAMILY(spridr) == SPR_836X_FAMILY) &&
		 REVID_MAJOR(spridr) >= 2)
		fdt_fixup_crypto_node(blob, 0x0204);

#if defined(CONFIG_HAS_ETH0) || defined(CONFIG_HAS_ETH1) ||\
    defined(CONFIG_HAS_ETH2) || defined(CONFIG_HAS_ETH3) ||\
    defined(CONFIG_HAS_ETH4) || defined(CONFIG_HAS_ETH5)
#ifdef CONFIG_ARCH_MPC8313
	/*
	* mpc8313e erratum IPIC1 swapped TSEC interrupt ID numbers on rev. 1
	* h/w (see AN3545).  The base device tree in use has rev. 1 ID numbers,
	* so if on Rev. 2 (and higher) h/w, we fix them up here
	*/
	if (REVID_MAJOR(immr->sysconf.spridr) >= 2) {
		int nodeoffset, path;
		const char *prop;

		nodeoffset = fdt_path_offset(blob, "/aliases");
		if (nodeoffset >= 0) {
#if defined(CONFIG_HAS_ETH0)
			prop = fdt_getprop(blob, nodeoffset, "ethernet0", NULL);
			if (prop) {
				u32 tmp[] = { 32, 0x8, 33, 0x8, 34, 0x8 };

				path = fdt_path_offset(blob, prop);
				prop = fdt_getprop(blob, path, "interrupts",
						   NULL);
				if (prop)
					fdt_setprop(blob, path, "interrupts",
						    &tmp, sizeof(tmp));
			}
#endif
#if defined(CONFIG_HAS_ETH1)
			prop = fdt_getprop(blob, nodeoffset, "ethernet1", NULL);
			if (prop) {
				u32 tmp[] = { 35, 0x8, 36, 0x8, 37, 0x8 };

				path = fdt_path_offset(blob, prop);
				prop = fdt_getprop(blob, path, "interrupts",
						   NULL);
				if (prop)
					fdt_setprop(blob, path, "interrupts",
						    &tmp, sizeof(tmp));
			}
#endif
		}
	}
#endif
#endif

	do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
		"timebase-frequency", (bd->bi_busfreq / 4), 1);
	do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
		"bus-frequency", bd->bi_busfreq, 1);
	do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
		"clock-frequency", gd->arch.core_clk, 1);
	do_fixup_by_prop_u32(blob, "device_type", "soc", 4,
		"bus-frequency", bd->bi_busfreq, 1);
	do_fixup_by_compat_u32(blob, "fsl,soc",
		"bus-frequency", bd->bi_busfreq, 1);
	do_fixup_by_compat_u32(blob, "fsl,soc",
		"clock-frequency", bd->bi_busfreq, 1);
	do_fixup_by_compat_u32(blob, "fsl,immr",
		"bus-frequency", bd->bi_busfreq, 1);
	do_fixup_by_compat_u32(blob, "fsl,immr",
		"clock-frequency", bd->bi_busfreq, 1);
#ifdef CONFIG_QE
	ft_qe_setup(blob);
#endif

#ifdef CONFIG_SYS_NS16550
        do_fixup_by_compat_u32(blob, "ns16550",
                "clock-frequency", get_serial_clock(), 1);
#endif

	fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);

#if defined(CONFIG_BOOTCOUNT_LIMIT) && \
	(defined(CONFIG_QE) && !defined(CONFIG_ARCH_MPC831X))
	fdt_fixup_muram (blob);
#endif
}