plat: renesas: rzg: Add HopeRun HiHope RZ/G2M board support

The HiHope RZ/G2M board from HopeRun consists of main board
(HopeRun HiHope RZ/G2M main board) and sub board(HopeRun
HiHope RZ/G2M sub board). The HiHope RZ/G2M sub board sits
below the HiHope RZ/G2M main board.

This patch adds the required board support to boot HopeRun HiHope
RZ/G2M board.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Change-Id: I3ed55aa4a2cc5c9d9cd6440e087bcd93186520c7

plat/renesas/common/bl2_cpg_init.c

@@ -18,7 +18,7 @@ static void bl2_realtime_cpg_init_h3(void);
 static void bl2_system_cpg_init_h3(void);
 #endif
 
-#if (RCAR_LSI == RCAR_AUTO) || (RCAR_LSI == RCAR_M3)
+#if (RCAR_LSI == RCAR_AUTO) || (RCAR_LSI == RCAR_M3) || (RCAR_LSI == RZ_G2M)
 static void bl2_realtime_cpg_init_m3(void);
 static void bl2_system_cpg_init_m3(void);
 #endif
@@ -149,7 +149,7 @@ static void bl2_system_cpg_init_h3(void)
 }
 #endif
 
-#if (RCAR_LSI == RCAR_AUTO) || (RCAR_LSI == RCAR_M3)
+#if (RCAR_LSI == RCAR_AUTO) || (RCAR_LSI == RCAR_M3) || (RCAR_LSI == RZ_G2M)
 static void bl2_realtime_cpg_init_m3(void)
 {
 	/* Realtime Module Stop Control Registers */
@@ -362,7 +362,7 @@ void bl2_cpg_init(void)
 		}
 #elif (RCAR_LSI == RCAR_H3) || (RCAR_LSI == RCAR_H3N)
 		bl2_realtime_cpg_init_h3();
-#elif RCAR_LSI == RCAR_M3
+#elif (RCAR_LSI == RCAR_M3) || (RCAR_LSI == RZ_G2M)
 		bl2_realtime_cpg_init_m3();
 #elif RCAR_LSI == RCAR_M3N
 		bl2_realtime_cpg_init_m3n();
@@ -408,7 +408,7 @@ void bl2_system_cpg_init(void)
 	}
 #elif (RCAR_LSI == RCAR_H3) || (RCAR_LSI == RCAR_H3N)
 	bl2_system_cpg_init_h3();
-#elif RCAR_LSI == RCAR_M3
+#elif (RCAR_LSI == RCAR_M3) || (RCAR_LSI == RZ_G2M)
 	bl2_system_cpg_init_m3();
 #elif RCAR_LSI == RCAR_M3N
 	bl2_system_cpg_init_m3n();

plat/renesas/common/common.mk

@@ -33,6 +33,7 @@ RCAR_H3N:=4
 RCAR_D3:=5
 RCAR_V3M:=6
 RCAR_AUTO:=99
+RZ_G2M:=100
 $(eval $(call add_define,RCAR_H3))
 $(eval $(call add_define,RCAR_M3))
 $(eval $(call add_define,RCAR_M3N))
@@ -41,6 +42,8 @@ $(eval $(call add_define,RCAR_H3N))
 $(eval $(call add_define,RCAR_D3))
 $(eval $(call add_define,RCAR_V3M))
 $(eval $(call add_define,RCAR_AUTO))
+$(eval $(call add_define,RZ_G2M))
+
 RCAR_CUT_10:=0
 RCAR_CUT_11:=1
 RCAR_CUT_13:=3

plat/renesas/rzg/bl2_plat_setup.c

+/*
+ * Copyright (c) 2020, Renesas Electronics Corporation. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <string.h>
+
+#include <arch_helpers.h>
+#include <bl1/bl1.h>
+#include <common/bl_common.h>
+#include <common/debug.h>
+#include <common/desc_image_load.h>
+#include <drivers/console.h>
+#include <drivers/io/io_driver.h>
+#include <drivers/io/io_storage.h>
+#include <libfdt.h>
+#include <lib/mmio.h>
+#include <lib/xlat_tables/xlat_tables_defs.h>
+#include <platform_def.h>
+#include <plat/common/platform.h>
+
+#include "avs_driver.h"
+#include "board.h"
+#include "boot_init_dram.h"
+#include "cpg_registers.h"
+#include "emmc_def.h"
+#include "emmc_hal.h"
+#include "emmc_std.h"
+#include "io_common.h"
+#include "io_rcar.h"
+#include "qos_init.h"
+#include "rcar_def.h"
+#include "rcar_private.h"
+#include "rcar_version.h"
+#include "rom_api.h"
+
+#define MAX_DRAM_CHANNELS 4
+
+#if RCAR_BL2_DCACHE == 1
+/*
+ * Following symbols are only used during plat_arch_setup() only
+ * when RCAR_BL2_DCACHE is enabled.
+ */
+static const uint64_t BL2_RO_BASE		= BL_CODE_BASE;
+static const uint64_t BL2_RO_LIMIT		= BL_CODE_END;
+
+#if USE_COHERENT_MEM
+static const uint64_t BL2_COHERENT_RAM_BASE	= BL_COHERENT_RAM_BASE;
+static const uint64_t BL2_COHERENT_RAM_LIMIT	= BL_COHERENT_RAM_END;
+#endif /* USE_COHERENT_MEM */
+
+#endif /* RCAR_BL2_DCACHE */
+
+extern void plat_rcar_gic_driver_init(void);
+extern void plat_rcar_gic_init(void);
+extern void bl2_enter_bl31(const struct entry_point_info *bl_ep_info);
+extern void bl2_system_cpg_init(void);
+extern void bl2_secure_setting(void);
+extern void bl2_cpg_init(void);
+extern void rcar_io_emmc_setup(void);
+extern void rcar_io_setup(void);
+extern void rcar_swdt_release(void);
+extern void rcar_swdt_init(void);
+extern void rcar_rpc_init(void);
+extern void rcar_dma_init(void);
+extern void rzg_pfc_init(void);
+
+static void bl2_init_generic_timer(void);
+
+/* RZ/G2 product check */
+#if RCAR_LSI == RZ_G2M
+#define TARGET_PRODUCT			PRR_PRODUCT_M3
+#define TARGET_NAME			"RZ/G2M"
+#elif RCAR_LSI == RCAR_AUTO
+#define TARGET_NAME			"RZ/G2M"
+#endif /* RCAR_LSI == RZ_G2M */
+
+#define GPIO_INDT			(GPIO_INDT1)
+#define GPIO_BKUP_TRG_SHIFT		(1U << 8U)
+
+CASSERT((PARAMS_BASE + sizeof(bl2_to_bl31_params_mem_t) + 0x100)
+	 < (RCAR_SHARED_MEM_BASE + RCAR_SHARED_MEM_SIZE),
+	assert_bl31_params_do_not_fit_in_shared_memory);
+
+static meminfo_t bl2_tzram_layout __aligned(CACHE_WRITEBACK_GRANULE);
+
+/* FDT with DRAM configuration */
+uint64_t fdt_blob[PAGE_SIZE_4KB / sizeof(uint64_t)];
+static void *fdt = (void *)fdt_blob;
+
+static void unsigned_num_print(uint64_t unum, unsigned int radix, char *string)
+{
+	/* Just need enough space to store 64 bit decimal integer */
+	char num_buf[20];
+	int i = 0;
+	unsigned int rem;
+
+	do {
+		rem = unum % radix;
+		if (rem < 0xaU) {
+			num_buf[i] = '0' + rem;
+		} else {
+			num_buf[i] = 'a' + (rem - 0xaU);
+		}
+		i++;
+		unum /= radix;
+	} while (unum > 0U);
+
+	while (--i >= 0) {
+		*string++ = num_buf[i];
+	}
+	*string = 0;
+}
+
+#if RCAR_LOSSY_ENABLE == 1
+typedef struct bl2_lossy_info {
+	uint32_t magic;
+	uint32_t a0;
+	uint32_t b0;
+} bl2_lossy_info_t;
+
+static void bl2_lossy_gen_fdt(uint32_t no, uint64_t start_addr,
+			      uint64_t end_addr, uint32_t format,
+			      uint32_t enable, int fcnlnode)
+{
+	const uint64_t fcnlsize = cpu_to_fdt64(end_addr - start_addr);
+	char nodename[40] = { 0 };
+	int ret, node;
+
+	/* Ignore undefined addresses */
+	if (start_addr == 0UL && end_addr == 0UL) {
+		return;
+	}
+
+	snprintf(nodename, sizeof(nodename), "lossy-decompression@");
+	unsigned_num_print(start_addr, 16, nodename + strlen(nodename));
+
+	node = ret = fdt_add_subnode(fdt, fcnlnode, nodename);
+	if (ret < 0) {
+		NOTICE("BL2: Cannot create FCNL node (ret=%i)\n", ret);
+		panic();
+	}
+
+	ret = fdt_setprop_string(fdt, node, "compatible",
+				 "renesas,lossy-decompression");
+	if (ret < 0) {
+		NOTICE("BL2: Cannot add FCNL compat string %s (ret=%i)\n",
+		       "renesas,lossy-decompression", ret);
+		panic();
+	}
+
+	ret = fdt_appendprop_string(fdt, node, "compatible",
+				    "shared-dma-pool");
+	if (ret < 0) {
+		NOTICE("BL2: Cannot append FCNL compat string %s (ret=%i)\n",
+		       "shared-dma-pool", ret);
+		panic();
+	}
+
+	ret = fdt_setprop_u64(fdt, node, "reg", start_addr);
+	if (ret < 0) {
+		NOTICE("BL2: Cannot add FCNL reg prop (ret=%i)\n", ret);
+		panic();
+	}
+
+	ret = fdt_appendprop(fdt, node, "reg", &fcnlsize, sizeof(fcnlsize));
+	if (ret < 0) {
+		NOTICE("BL2: Cannot append FCNL reg size prop (ret=%i)\n", ret);
+		panic();
+	}
+
+	ret = fdt_setprop(fdt, node, "no-map", NULL, 0);
+	if (ret < 0) {
+		NOTICE("BL2: Cannot add FCNL no-map prop (ret=%i)\n", ret);
+		panic();
+	}
+
+	ret = fdt_setprop_u32(fdt, node, "renesas,formats", format);
+	if (ret < 0) {
+		NOTICE("BL2: Cannot add FCNL formats prop (ret=%i)\n", ret);
+		panic();
+	}
+}
+
+static void bl2_lossy_setting(uint32_t no, uint64_t start_addr,
+			      uint64_t end_addr, uint32_t format,
+			      uint32_t enable, int fcnlnode)
+{
+	bl2_lossy_info_t info;
+	uint32_t reg;
+
+	bl2_lossy_gen_fdt(no, start_addr, end_addr, format, enable, fcnlnode);
+
+	reg = format | (start_addr >> 20);
+	mmio_write_32(AXI_DCMPAREACRA0 + 0x8U * no, reg);
+	mmio_write_32(AXI_DCMPAREACRB0 + 0x8U * no, end_addr >> 20);
+	mmio_write_32(AXI_DCMPAREACRA0 + 0x8U * no, reg | enable);
+
+	info.magic = 0x12345678U;
+	info.a0 = mmio_read_32(AXI_DCMPAREACRA0 + 0x8U * no);
+	info.b0 = mmio_read_32(AXI_DCMPAREACRB0 + 0x8U * no);
+
+	mmio_write_32(LOSSY_PARAMS_BASE + sizeof(info) * no, info.magic);
+	mmio_write_32(LOSSY_PARAMS_BASE + sizeof(info) * no + 0x4U, info.a0);
+	mmio_write_32(LOSSY_PARAMS_BASE + sizeof(info) * no + 0x8U, info.b0);
+
+	NOTICE("     Entry %d: DCMPAREACRAx:0x%x DCMPAREACRBx:0x%x\n", no,
+	       mmio_read_32(AXI_DCMPAREACRA0 + 0x8U * no),
+	       mmio_read_32(AXI_DCMPAREACRB0 + 0x8U * no));
+}
+#endif /* RCAR_LOSSY_ENABLE == 1 */
+
+void bl2_plat_flush_bl31_params(void)
+{
+	uint32_t product_cut, product, cut;
+	uint32_t boot_dev, boot_cpu;
+	uint32_t reg;
+
+	reg = mmio_read_32(RCAR_MODEMR);
+	boot_dev = reg & MODEMR_BOOT_DEV_MASK;
+
+	if (boot_dev == MODEMR_BOOT_DEV_EMMC_25X1 ||
+	    boot_dev == MODEMR_BOOT_DEV_EMMC_50X8) {
+		emmc_terminate();
+	}
+
+	if ((reg & MODEMR_BOOT_CPU_MASK) != MODEMR_BOOT_CPU_CR7) {
+		bl2_secure_setting();
+	}
+
+	reg = mmio_read_32(RCAR_PRR);
+	product_cut = reg & (PRR_PRODUCT_MASK | PRR_CUT_MASK);
+	product = reg & PRR_PRODUCT_MASK;
+	cut = reg & PRR_CUT_MASK;
+
+	if (!((product == PRR_PRODUCT_M3 && cut < PRR_PRODUCT_30) ||
+	      (product == PRR_PRODUCT_H3 && cut < PRR_PRODUCT_20))) {
+		/* Disable MFIS write protection */
+		mmio_write_32(MFISWPCNTR, MFISWPCNTR_PASSWORD | 1U);
+	}
+
+	reg = mmio_read_32(RCAR_MODEMR);
+	boot_cpu = reg & MODEMR_BOOT_CPU_MASK;
+	if (boot_cpu == MODEMR_BOOT_CPU_CA57 ||
+	    boot_cpu == MODEMR_BOOT_CPU_CA53) {
+		if (product_cut == PRR_PRODUCT_H3_CUT20) {
+			mmio_write_32(IPMMUVI0_IMSCTLR, IMSCTLR_DISCACHE);
+			mmio_write_32(IPMMUVI1_IMSCTLR, IMSCTLR_DISCACHE);
+			mmio_write_32(IPMMUPV0_IMSCTLR, IMSCTLR_DISCACHE);
+			mmio_write_32(IPMMUPV1_IMSCTLR, IMSCTLR_DISCACHE);
+			mmio_write_32(IPMMUPV2_IMSCTLR, IMSCTLR_DISCACHE);
+			mmio_write_32(IPMMUPV3_IMSCTLR, IMSCTLR_DISCACHE);
+		} else if (product_cut == (PRR_PRODUCT_M3N | PRR_PRODUCT_10) ||
+			   product_cut == (PRR_PRODUCT_M3N | PRR_PRODUCT_11)) {
+			mmio_write_32(IPMMUVI0_IMSCTLR, IMSCTLR_DISCACHE);
+			mmio_write_32(IPMMUPV0_IMSCTLR, IMSCTLR_DISCACHE);
+		} else if ((product_cut == (PRR_PRODUCT_E3 | PRR_PRODUCT_10)) ||
+			   (product_cut == (PRR_PRODUCT_E3 | PRR_PRODUCT_11))) {
+			mmio_write_32(IPMMUVI0_IMSCTLR, IMSCTLR_DISCACHE);
+			mmio_write_32(IPMMUVP0_IMSCTLR, IMSCTLR_DISCACHE);
+			mmio_write_32(IPMMUPV0_IMSCTLR, IMSCTLR_DISCACHE);
+		}
+
+		if (product_cut == (PRR_PRODUCT_H3_CUT20) ||
+		    product_cut == (PRR_PRODUCT_M3N | PRR_PRODUCT_10) ||
+		    product_cut == (PRR_PRODUCT_M3N | PRR_PRODUCT_11) ||
+		    product_cut == (PRR_PRODUCT_E3 | PRR_PRODUCT_10)) {
+			mmio_write_32(IPMMUHC_IMSCTLR, IMSCTLR_DISCACHE);
+			mmio_write_32(IPMMURT_IMSCTLR, IMSCTLR_DISCACHE);
+			mmio_write_32(IPMMUMP_IMSCTLR, IMSCTLR_DISCACHE);
+
+			mmio_write_32(IPMMUDS0_IMSCTLR, IMSCTLR_DISCACHE);
+			mmio_write_32(IPMMUDS1_IMSCTLR, IMSCTLR_DISCACHE);
+		}
+	}
+
+	mmio_write_32(IPMMUMM_IMSCTLR, IPMMUMM_IMSCTLR_ENABLE);
+	mmio_write_32(IPMMUMM_IMAUXCTLR, IPMMUMM_IMAUXCTLR_NMERGE40_BIT);
+
+	rcar_swdt_release();
+	bl2_system_cpg_init();
+
+#if RCAR_BL2_DCACHE == 1
+	/* Disable data cache (clean and invalidate) */
+	disable_mmu_el3();
+#endif /* RCAR_BL2_DCACHE == 1 */
+}
+
+static uint32_t is_ddr_backup_mode(void)
+{
+#if RCAR_SYSTEM_SUSPEND
+	static uint32_t reason = RCAR_COLD_BOOT;
+	static uint32_t once;
+
+	if (once != 0U) {
+		return reason;
+	}
+
+	once = 1;
+	if ((mmio_read_32(GPIO_INDT) & GPIO_BKUP_TRG_SHIFT) == 0U) {
+		return reason;
+	}
+
+	reason = RCAR_WARM_BOOT;
+	return reason;
+#else /* RCAR_SYSTEM_SUSPEND */
+	return RCAR_COLD_BOOT;
+#endif /* RCAR_SYSTEM_SUSPEND */
+}
+
+int bl2_plat_handle_pre_image_load(unsigned int image_id)
+{
+	u_register_t *boot_kind = (void *)BOOT_KIND_BASE;
+	bl_mem_params_node_t *bl_mem_params;
+
+	if (image_id != BL31_IMAGE_ID) {
+		return 0;
+	}
+
+	bl_mem_params = get_bl_mem_params_node(image_id);
+
+	if (is_ddr_backup_mode() != RCAR_COLD_BOOT) {
+		*boot_kind  = RCAR_WARM_BOOT;
+		flush_dcache_range(BOOT_KIND_BASE, sizeof(*boot_kind));
+
+		console_flush();
+		bl2_plat_flush_bl31_params();
+
+		/* will not return */
+		bl2_enter_bl31(&bl_mem_params->ep_info);
+	}
+
+	*boot_kind  = RCAR_COLD_BOOT;
+	flush_dcache_range(BOOT_KIND_BASE, sizeof(*boot_kind));
+
+	return 0;
+}
+
+static uint64_t rzg_get_dest_addr_from_cert(uint32_t certid, uintptr_t *dest)
+{
+	uint32_t cert, len;
+	int err;
+
+	err = rcar_get_certificate(certid, &cert);
+	if (err != 0) {
+		ERROR("%s : cert file load error", __func__);
+		return 1U;
+	}
+
+	rcar_read_certificate((uint64_t)cert, &len, dest);
+
+	return 0U;
+}
+
+int bl2_plat_handle_post_image_load(unsigned int image_id)
+{
+	static bl2_to_bl31_params_mem_t *params;
+	bl_mem_params_node_t *bl_mem_params;
+	uintptr_t dest;
+	uint64_t ret;
+
+	if (params == NULL) {
+		params = (bl2_to_bl31_params_mem_t *)PARAMS_BASE;
+		memset((void *)PARAMS_BASE, 0, sizeof(*params));
+	}
+
+	bl_mem_params = get_bl_mem_params_node(image_id);
+
+	switch (image_id) {
+	case BL31_IMAGE_ID:
+		ret = rzg_get_dest_addr_from_cert(SOC_FW_CONTENT_CERT_ID,
+						  &dest);
+		if (ret == 0U) {
+			bl_mem_params->image_info.image_base = dest;
+		}
+		break;
+	case BL32_IMAGE_ID:
+		ret = rzg_get_dest_addr_from_cert(TRUSTED_OS_FW_CONTENT_CERT_ID,
+						  &dest);
+		if (ret == 0U) {
+			bl_mem_params->image_info.image_base = dest;
+		}
+
+		memcpy(&params->bl32_ep_info, &bl_mem_params->ep_info,
+		       sizeof(entry_point_info_t));
+		break;
+	case BL33_IMAGE_ID:
+		memcpy(&params->bl33_ep_info, &bl_mem_params->ep_info,
+		       sizeof(entry_point_info_t));
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+struct meminfo *bl2_plat_sec_mem_layout(void)
+{
+	return &bl2_tzram_layout;
+}
+
+static void bl2_populate_compatible_string(void *dt)
+{
+	uint32_t board_type;
+	uint32_t board_rev;
+	uint32_t reg;
+	int ret;
+
+	fdt_setprop_u32(dt, 0, "#address-cells", 2);
+	fdt_setprop_u32(dt, 0, "#size-cells", 2);
+
+	/* Populate compatible string */
+	rzg_get_board_type(&board_type, &board_rev);
+	switch (board_type) {
+	case BOARD_HIHOPE_RZ_G2M:
+		ret = fdt_setprop_string(dt, 0, "compatible",
+					 "hoperun,hihope-rzg2m");
+		break;
+	default:
+		NOTICE("BL2: Cannot set compatible string, board unsupported\n");
+		panic();
+		break;
+	}
+
+	if (ret < 0) {
+		NOTICE("BL2: Cannot set compatible string (ret=%i)\n", ret);
+		panic();
+	}
+
+	reg = mmio_read_32(RCAR_PRR);
+	switch (reg & PRR_PRODUCT_MASK) {
+	case PRR_PRODUCT_M3:
+		ret = fdt_appendprop_string(dt, 0, "compatible",
+					    "renesas,r8a774a1");
+		break;
+	default:
+		NOTICE("BL2: Cannot set compatible string, SoC unsupported\n");
+		panic();
+		break;
+	}
+
+	if (ret < 0) {
+		NOTICE("BL2: Cannot set compatible string (ret=%i)\n", ret);
+		panic();
+	}
+}
+
+static void bl2_advertise_dram_entries(uint64_t dram_config[8])
+{
+	char nodename[32] = { 0 };
+	uint64_t start, size;
+	uint64_t fdtsize;
+	int ret, node, chan;
+
+	for (chan = 0; chan < MAX_DRAM_CHANNELS; chan++) {
+		start = dram_config[2 * chan];
+		size = dram_config[2 * chan + 1];
+		if (size == 0U) {
+			continue;
+		}
+
+		NOTICE("BL2: CH%d: %llx - %llx, %lld %siB\n",
+		       chan, start, start + size - 1U,
+		       (size >> 30) ? : size >> 20,
+		       (size >> 30) ? "G" : "M");
+	}
+
+	/*
+	 * We add the DT nodes in reverse order here. The fdt_add_subnode()
+	 * adds the DT node before the first existing DT node, so we have
+	 * to add them in reverse order to get nodes sorted by address in
+	 * the resulting DT.
+	 */
+	for (chan = MAX_DRAM_CHANNELS - 1; chan >= 0; chan--) {
+		start = dram_config[2 * chan];
+		size = dram_config[2 * chan + 1];
+		if (size == 0U) {
+			continue;
+		}
+
+		/*
+		 * Channel 0 is mapped in 32bit space and the first
+		 * 128 MiB are reserved
+		 */
+		if (chan == 0) {
+			start = 0x48000000U;
+			size -= 0x8000000U;
+		}
+
+		fdtsize = cpu_to_fdt64(size);
+
+		snprintf(nodename, sizeof(nodename), "memory@");
+		unsigned_num_print(start, 16, nodename + strlen(nodename));
+		node = ret = fdt_add_subnode(fdt, 0, nodename);
+		if (ret < 0) {
+			goto err;
+		}
+
+		ret = fdt_setprop_string(fdt, node, "device_type", "memory");
+		if (ret < 0) {
+			goto err;
+		}
+
+		ret = fdt_setprop_u64(fdt, node, "reg", start);
+		if (ret < 0) {
+			goto err;
+		}
+
+		ret = fdt_appendprop(fdt, node, "reg", &fdtsize,
+				     sizeof(fdtsize));
+		if (ret < 0) {
+			goto err;
+		}
+	}
+
+	return;
+err:
+	NOTICE("BL2: Cannot add memory node to FDT (ret=%i)\n", ret);
+	panic();
+}
+
+static void bl2_advertise_dram_size(uint32_t product)
+{
+	uint64_t dram_config[8] = {
+		[0] = 0x400000000ULL,
+		[2] = 0x500000000ULL,
+		[4] = 0x600000000ULL,
+		[6] = 0x700000000ULL,
+	};
+
+	switch (product) {
+	case PRR_PRODUCT_M3:
+		/* 4GB(2GBx2 2ch split) */
+		dram_config[1] = 0x80000000ULL;
+		dram_config[5] = 0x80000000ULL;
+		break;
+	default:
+		NOTICE("BL2: Detected invalid DRAM entries\n");
+		break;
+	}
+
+	bl2_advertise_dram_entries(dram_config);
+}
+
+void bl2_el3_early_platform_setup(u_register_t arg1, u_register_t arg2,
+				  u_register_t arg3, u_register_t arg4)
+{
+	uint32_t reg, midr, boot_dev, boot_cpu, type, rev;
+	uint32_t product, product_cut, major, minor;
+	int32_t ret;
+	const char *str;
+	const char *unknown = "unknown";
+	const char *cpu_ca57 = "CA57";
+	const char *cpu_ca53 = "CA53";
+	const char *product_g2m = "G2M";
+	const char *boot_hyper80 = "HyperFlash(80MHz)";
+	const char *boot_qspi40 = "QSPI Flash(40MHz)";
+	const char *boot_qspi80 = "QSPI Flash(80MHz)";
+	const char *boot_emmc25x1 = "eMMC(25MHz x1)";
+	const char *boot_emmc50x8 = "eMMC(50MHz x8)";
+	const char *boot_hyper160 = "HyperFlash(160MHz)";
+#if RZG_LCS_STATE_DETECTION_ENABLE
+	uint32_t lcs;
+	const char *lcs_secure = "SE";
+	const char *lcs_cm = "CM";
+	const char *lcs_dm = "DM";
+	const char *lcs_sd = "SD";
+	const char *lcs_fa = "FA";
+#endif /* RZG_LCS_STATE_DETECTION_ENABLE */
+
+#if (RCAR_LOSSY_ENABLE == 1)
+	int fcnlnode;
+#endif /* (RCAR_LOSSY_ENABLE == 1) */
+
+	bl2_init_generic_timer();
+
+	reg = mmio_read_32(RCAR_MODEMR);
+	boot_dev = reg & MODEMR_BOOT_DEV_MASK;
+	boot_cpu = reg & MODEMR_BOOT_CPU_MASK;
+
+	bl2_cpg_init();
+
+	if (boot_cpu == MODEMR_BOOT_CPU_CA57 ||
+	    boot_cpu == MODEMR_BOOT_CPU_CA53) {
+		rzg_pfc_init();
+		rcar_console_boot_init();
+	}
+
+	plat_rcar_gic_driver_init();
+	plat_rcar_gic_init();
+	rcar_swdt_init();
+
+	/* FIQ interrupts are taken to EL3 */
+	write_scr_el3(read_scr_el3() | SCR_FIQ_BIT);
+
+	write_daifclr(DAIF_FIQ_BIT);
+
+	reg = read_midr();
+	midr = reg & (MIDR_PN_MASK << MIDR_PN_SHIFT);
+	switch (midr) {
+	case MIDR_CA57:
+		str = cpu_ca57;
+		break;
+	case MIDR_CA53:
+		str = cpu_ca53;
+		break;
+	default:
+		str = unknown;
+		break;
+	}
+
+	NOTICE("BL2: RZ/G2 Initial Program Loader(%s) Rev.%s\n", str,
+	       version_of_renesas);
+
+	reg = mmio_read_32(RCAR_PRR);
+	product_cut = reg & (PRR_PRODUCT_MASK | PRR_CUT_MASK);
+	product = reg & PRR_PRODUCT_MASK;
+
+	switch (product) {
+	case PRR_PRODUCT_M3:
+		str = product_g2m;
+		break;
+	default:
+		str = unknown;
+		break;
+	}
+
+	if ((product == PRR_PRODUCT_M3) &&
+	    ((reg & RCAR_MAJOR_MASK) == PRR_PRODUCT_20)) {
+		if ((reg & PRR_CUT_MASK) == RCAR_M3_CUT_VER11) {
+			/* M3 Ver.1.1 or Ver.1.2 */
+			NOTICE("BL2: PRR is RZ/%s Ver.1.1 / Ver.1.2\n", str);
+		} else {
+			NOTICE("BL2: PRR is RZ/%s Ver.1.%d\n", str,
+				(reg & RCAR_MINOR_MASK) + RCAR_M3_MINOR_OFFSET);
+		}
+	} else {
+		major = (reg & RCAR_MAJOR_MASK) >> RCAR_MAJOR_SHIFT;
+		major = major + RCAR_MAJOR_OFFSET;
+		minor = reg & RCAR_MINOR_MASK;
+		NOTICE("BL2: PRR is RZ/%s Ver.%d.%d\n", str, major, minor);
+	}
+
+	rzg_get_board_type(&type, &rev);
+
+	switch (type) {
+	case BOARD_HIHOPE_RZ_G2M:
+		break;
+	default:
+		type = BOARD_UNKNOWN;
+		break;
+	}
+
+	if (type == BOARD_UNKNOWN || rev == BOARD_REV_UNKNOWN) {
+		NOTICE("BL2: Board is %s Rev.---\n", GET_BOARD_NAME(type));
+	} else {
+		NOTICE("BL2: Board is %s Rev.%d.%d\n",
+		       GET_BOARD_NAME(type),
+		       GET_BOARD_MAJOR(rev), GET_BOARD_MINOR(rev));
+	}
+
+#if RCAR_LSI != RCAR_AUTO
+	if (product != TARGET_PRODUCT) {
+		ERROR("BL2: IPL was been built for the %s.\n", TARGET_NAME);
+		ERROR("BL2: Please write the correct IPL to flash memory.\n");
+		panic();
+	}
+#endif /* RCAR_LSI != RCAR_AUTO */
+	rcar_avs_init();
+	rcar_avs_setting();
+
+	switch (boot_dev) {
+	case MODEMR_BOOT_DEV_HYPERFLASH160:
+		str = boot_hyper160;
+		break;
+	case MODEMR_BOOT_DEV_HYPERFLASH80:
+		str = boot_hyper80;
+		break;
+	case MODEMR_BOOT_DEV_QSPI_FLASH40:
+		str = boot_qspi40;
+		break;
+	case MODEMR_BOOT_DEV_QSPI_FLASH80:
+		str = boot_qspi80;
+		break;
+	case MODEMR_BOOT_DEV_EMMC_25X1:
+		str = boot_emmc25x1;
+		break;
+	case MODEMR_BOOT_DEV_EMMC_50X8:
+		str = boot_emmc50x8;
+		break;
+	default:
+		str = unknown;
+		break;
+	}
+	NOTICE("BL2: Boot device is %s\n", str);
+
+	rcar_avs_setting();
+
+#if RZG_LCS_STATE_DETECTION_ENABLE
+	reg = rcar_rom_get_lcs(&lcs);
+	if (reg != 0U) {
+		str = unknown;
+		goto lcm_state;
+	}
+
+	switch (lcs) {
+	case LCS_CM:
+		str = lcs_cm;
+		break;
+	case LCS_DM:
+		str = lcs_dm;
+		break;
+	case LCS_SD:
+		str = lcs_sd;
+		break;
+	case LCS_SE:
+		str = lcs_secure;
+		break;
+	case LCS_FA:
+		str = lcs_fa;
+		break;
+	default:
+		str = unknown;
+		break;
+	}
+
+lcm_state:
+	NOTICE("BL2: LCM state is %s\n", str);
+#endif /* RZG_LCS_STATE_DETECTION_ENABLE */
+
+	rcar_avs_end();
+	is_ddr_backup_mode();
+
+	bl2_tzram_layout.total_base = BL31_BASE;
+	bl2_tzram_layout.total_size = BL31_LIMIT - BL31_BASE;
+
+	if (boot_cpu == MODEMR_BOOT_CPU_CA57 ||
+	    boot_cpu == MODEMR_BOOT_CPU_CA53) {
+		ret = rzg_dram_init();
+		if (ret != 0) {
+			NOTICE("BL2: Failed to DRAM initialize (%d).\n", ret);
+			panic();
+		}
+		rzg_qos_init();
+	}
+
+	/* Set up FDT */
+	ret = fdt_create_empty_tree(fdt, sizeof(fdt_blob));
+	if (ret != 0) {
+		NOTICE("BL2: Cannot allocate FDT for U-Boot (ret=%i)\n", ret);
+		panic();
+	}
+
+	/* Add platform compatible string */
+	bl2_populate_compatible_string(fdt);
+
+	/* Print DRAM layout */
+	bl2_advertise_dram_size(product);
+
+	if (boot_dev == MODEMR_BOOT_DEV_EMMC_25X1 ||
+	    boot_dev == MODEMR_BOOT_DEV_EMMC_50X8) {
+		if (rcar_emmc_init() != EMMC_SUCCESS) {
+			NOTICE("BL2: Failed to eMMC driver initialize.\n");
+			panic();
+		}
+		rcar_emmc_memcard_power(EMMC_POWER_ON);
+		if (rcar_emmc_mount() != EMMC_SUCCESS) {
+			NOTICE("BL2: Failed to eMMC mount operation.\n");
+			panic();
+		}
+	} else {
+		rcar_rpc_init();
+		rcar_dma_init();
+	}
+
+	reg = mmio_read_32(RST_WDTRSTCR);
+	reg &= ~WDTRSTCR_RWDT_RSTMSK;
+	reg |= WDTRSTCR_PASSWORD;
+	mmio_write_32(RST_WDTRSTCR, reg);
+
+	mmio_write_32(CPG_CPGWPR, CPGWPR_PASSWORD);
+	mmio_write_32(CPG_CPGWPCR, CPGWPCR_PASSWORD);
+
+	reg = mmio_read_32(RCAR_PRR);
+	if ((reg & RCAR_CPU_MASK_CA57) == RCAR_CPU_HAVE_CA57) {
+		mmio_write_32(CPG_CA57DBGRCR,
+			      DBGCPUPREN | mmio_read_32(CPG_CA57DBGRCR));
+	}
+
+	if ((reg & RCAR_CPU_MASK_CA53) == RCAR_CPU_HAVE_CA53) {
+		mmio_write_32(CPG_CA53DBGRCR,
+			      DBGCPUPREN | mmio_read_32(CPG_CA53DBGRCR));
+	}
+
+	if (product_cut == PRR_PRODUCT_H3_CUT10) {
+		reg = mmio_read_32(CPG_PLL2CR);
+		reg &= ~((uint32_t)1 << 5);
+		mmio_write_32(CPG_PLL2CR, reg);
+
+		reg = mmio_read_32(CPG_PLL4CR);
+		reg &= ~((uint32_t)1 << 5);
+		mmio_write_32(CPG_PLL4CR, reg);
+
+		reg = mmio_read_32(CPG_PLL0CR);
+		reg &= ~((uint32_t)1 << 12);
+		mmio_write_32(CPG_PLL0CR, reg);
+	}
+#if (RCAR_LOSSY_ENABLE == 1)
+	NOTICE("BL2: Lossy Decomp areas\n");
+
+	fcnlnode = fdt_add_subnode(fdt, 0, "reserved-memory");
+	if (fcnlnode < 0) {
+		NOTICE("BL2: Cannot create reserved mem node (ret=%i)\n",
+		       fcnlnode);
+		panic();
+	}
+
+	bl2_lossy_setting(0, LOSSY_ST_ADDR0, LOSSY_END_ADDR0,
+			  LOSSY_FMT0, LOSSY_ENA_DIS0, fcnlnode);
+	bl2_lossy_setting(1, LOSSY_ST_ADDR1, LOSSY_END_ADDR1,
+			  LOSSY_FMT1, LOSSY_ENA_DIS1, fcnlnode);
+	bl2_lossy_setting(2, LOSSY_ST_ADDR2, LOSSY_END_ADDR2,
+			  LOSSY_FMT2, LOSSY_ENA_DIS2, fcnlnode);
+#endif /* RCAR_LOSSY_ENABLE */
+
+	fdt_pack(fdt);
+	NOTICE("BL2: FDT at %p\n", fdt);
+
+	if (boot_dev == MODEMR_BOOT_DEV_EMMC_25X1 ||
+	    boot_dev == MODEMR_BOOT_DEV_EMMC_50X8) {
+		rcar_io_emmc_setup();
+	} else {
+		rcar_io_setup();
+	}
+}
+
+void bl2_el3_plat_arch_setup(void)
+{
+#if RCAR_BL2_DCACHE == 1
+	NOTICE("BL2: D-Cache enable\n");
+	rcar_configure_mmu_el3(BL2_BASE,
+			       BL2_END - BL2_BASE,
+			       BL2_RO_BASE, BL2_RO_LIMIT
+#if USE_COHERENT_MEM
+			       , BL2_COHERENT_RAM_BASE, BL2_COHERENT_RAM_LIMIT
+#endif /* USE_COHERENT_MEM */
+	    );
+#endif /* RCAR_BL2_DCACHE == 1 */
+}
+
+void bl2_platform_setup(void)
+{
+	/*
+	 * Place holder for performing any platform initialization specific
+	 * to BL2.
+	 */
+}
+
+static void bl2_init_generic_timer(void)
+{
+	uint32_t reg_cntfid;
+	uint32_t modemr;
+	uint32_t modemr_pll;
+	uint32_t pll_table[] = {
+		EXTAL_MD14_MD13_TYPE_0,	/* MD14/MD13 : 0b00 */
+		EXTAL_MD14_MD13_TYPE_1,	/* MD14/MD13 : 0b01 */
+		EXTAL_MD14_MD13_TYPE_2,	/* MD14/MD13 : 0b10 */
+		EXTAL_MD14_MD13_TYPE_3	/* MD14/MD13 : 0b11 */
+	};
+
+	modemr = mmio_read_32(RCAR_MODEMR);
+	modemr_pll = (modemr & MODEMR_BOOT_PLL_MASK);
+
+	/* Set frequency data in CNTFID0 */
+	reg_cntfid = pll_table[modemr_pll >> MODEMR_BOOT_PLL_SHIFT];
+
+	/* Update memory mapped and register based frequency */
+	write_cntfrq_el0((u_register_t)reg_cntfid);
+	mmio_write_32(ARM_SYS_CNTCTL_BASE + (uintptr_t)CNTFID_OFF, reg_cntfid);
+	/* Enable counter */
+	mmio_setbits_32(RCAR_CNTC_BASE + (uintptr_t)CNTCR_OFF,
+			(uint32_t)CNTCR_EN);
+}

plat/renesas/rzg/platform.mk

+#
+# Copyright (c) 2018-2020, Renesas Electronics Corporation. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+include plat/renesas/common/common.mk
+
+ifndef LSI
+  $(error "Error: Unknown LSI. Please use LSI=<LSI name> to specify the LSI")
+else
+  ifeq (${LSI},AUTO)
+    RCAR_LSI:=${RCAR_AUTO}
+  else ifeq (${LSI},G2M)
+    RCAR_LSI:=${RZ_G2M}
+    ifndef LSI_CUT
+      # enable compatible function.
+      RCAR_LSI_CUT_COMPAT := 1
+      $(eval $(call add_define,RCAR_LSI_CUT_COMPAT))
+    else
+      # disable compatible function.
+      ifeq (${LSI_CUT},10)
+        RCAR_LSI_CUT:=0
+      else ifeq (${LSI_CUT},11)
+        RCAR_LSI_CUT:=1
+      else ifeq (${LSI_CUT},13)
+        RCAR_LSI_CUT:=3
+      else ifeq (${LSI_CUT},30)
+        RCAR_LSI_CUT:=20
+      else
+        $(error "Error: ${LSI_CUT} is not supported.")
+      endif
+      $(eval $(call add_define,RCAR_LSI_CUT))
+    endif
+  else
+    $(error "Error: ${LSI} is not supported.")
+  endif
+  $(eval $(call add_define,RCAR_LSI))
+endif
+
+# Process RZG_LCS_STATE_DETECTION_ENABLE flag
+# Enable to get LCS state information
+ifndef RZG_LCS_STATE_DETECTION_ENABLE
+RZG_LCS_STATE_DETECTION_ENABLE := 0
+endif
+$(eval $(call add_define,RZG_LCS_STATE_DETECTION_ENABLE))
+
+# Process RCAR_SECURE_BOOT flag
+ifndef RCAR_SECURE_BOOT
+RCAR_SECURE_BOOT := 0
+endif
+$(eval $(call add_define,RCAR_SECURE_BOOT))
+
+# LCS state of RZ/G2 Chip is all CM.
+# However certain chips(RZ/G2M and RZ/G2E) have incorrect factory Fuse settings
+# which results in getting incorrect LCS states
+# if need to enable RCAR_SECURE_BOOT, make sure the chip has proper factory Fuse settings.
+ifeq (${RCAR_SECURE_BOOT},1)
+  ifeq (${RZG_LCS_STATE_DETECTION_ENABLE},0)
+    $(error "Error: Please check the chip has proper factory Fuse settings and set RZG_LCS_STATE_DETECTION_ENABLE to enable.")
+  endif
+endif
+
+# lock RPC HYPERFLASH access by default
+# unlock to repogram the ATF firmware from u-boot
+ifndef RCAR_RPC_HYPERFLASH_LOCKED
+RCAR_RPC_HYPERFLASH_LOCKED := 1
+endif
+$(eval $(call add_define,RCAR_RPC_HYPERFLASH_LOCKED))
+
+# Process RCAR_QOS_TYPE flag
+ifndef RCAR_QOS_TYPE
+RCAR_QOS_TYPE := 0
+endif
+$(eval $(call add_define,RCAR_QOS_TYPE))
+
+# Process RCAR_DRAM_SPLIT flag
+ifndef RCAR_DRAM_SPLIT
+RCAR_DRAM_SPLIT := 0
+endif
+$(eval $(call add_define,RCAR_DRAM_SPLIT))
+
+# Process RCAR_BL33_EXECUTION_EL flag
+ifndef RCAR_BL33_EXECUTION_EL
+RCAR_BL33_EXECUTION_EL := 0
+endif
+$(eval $(call add_define,RCAR_BL33_EXECUTION_EL))
+
+# Process RCAR_AVS_SETTING_ENABLE flag
+ifndef AVS_SETTING_ENABLE
+AVS_SETTING_ENABLE := 0
+endif
+$(eval $(call add_define,AVS_SETTING_ENABLE))
+
+# Process RCAR_LOSSY_ENABLE flag
+ifndef RCAR_LOSSY_ENABLE
+RCAR_LOSSY_ENABLE := 0
+endif
+$(eval $(call add_define,RCAR_LOSSY_ENABLE))
+
+# Process LIFEC_DBSC_PROTECT_ENABLE flag
+ifndef LIFEC_DBSC_PROTECT_ENABLE
+LIFEC_DBSC_PROTECT_ENABLE := 1
+endif
+$(eval $(call add_define,LIFEC_DBSC_PROTECT_ENABLE))
+
+# Process RCAR_GEN3_ULCB flag
+ifndef RCAR_GEN3_ULCB
+RCAR_GEN3_ULCB := 0
+endif
+
+# Process RCAR_REF_INT flag
+ifndef RCAR_REF_INT
+RCAR_REF_INT :=0
+endif
+$(eval $(call add_define,RCAR_REF_INT))
+
+# Process RCAR_REWT_TRAINING flag
+ifndef RCAR_REWT_TRAINING
+RCAR_REWT_TRAINING := 1
+endif
+$(eval $(call add_define,RCAR_REWT_TRAINING))
+
+# Process RCAR_SYSTEM_SUSPEND flag
+ifndef RCAR_SYSTEM_SUSPEND
+RCAR_SYSTEM_SUSPEND := 0
+endif
+$(eval $(call add_define,RCAR_SYSTEM_SUSPEND))
+
+# Process RCAR_DRAM_LPDDR4_MEMCONF flag
+ifndef RCAR_DRAM_LPDDR4_MEMCONF
+RCAR_DRAM_LPDDR4_MEMCONF :=1
+endif
+$(eval $(call add_define,RCAR_DRAM_LPDDR4_MEMCONF))
+
+# Process RCAR_DRAM_DDR3L_MEMCONF flag
+ifndef RCAR_DRAM_DDR3L_MEMCONF
+RCAR_DRAM_DDR3L_MEMCONF :=1
+endif
+$(eval $(call add_define,RCAR_DRAM_DDR3L_MEMCONF))
+
+# Process RCAR_DRAM_DDR3L_MEMDUAL flag
+ifndef RCAR_DRAM_DDR3L_MEMDUAL
+RCAR_DRAM_DDR3L_MEMDUAL :=1
+endif
+$(eval $(call add_define,RCAR_DRAM_DDR3L_MEMDUAL))
+
+# Process RCAR_BL33_ARG0 flag
+ifdef RCAR_BL33_ARG0
+$(eval $(call add_define,RCAR_BL33_ARG0))
+endif
+
+#Process RCAR_BL2_DCACHE flag
+ifndef RCAR_BL2_DCACHE
+RCAR_BL2_DCACHE := 0
+endif
+$(eval $(call add_define,RCAR_BL2_DCACHE))
+
+# Process RCAR_DRAM_CHANNEL flag
+ifndef RCAR_DRAM_CHANNEL
+RCAR_DRAM_CHANNEL :=15
+endif
+$(eval $(call add_define,RCAR_DRAM_CHANNEL))
+
+#Process RCAR_SYSTEM_RESET_KEEPON_DDR flag
+ifndef RCAR_SYSTEM_RESET_KEEPON_DDR
+RCAR_SYSTEM_RESET_KEEPON_DDR := 0
+endif
+$(eval $(call add_define,RCAR_SYSTEM_RESET_KEEPON_DDR))
+
+include drivers/renesas/rzg/ddr/ddr.mk
+include drivers/renesas/rzg/qos/qos.mk
+include drivers/renesas/rzg/pfc/pfc.mk
+include lib/libfdt/libfdt.mk
+
+PLAT_INCLUDES	+=	-Idrivers/renesas/rzg/ddr		\
+			-Idrivers/renesas/rzg/qos		\
+			-Idrivers/renesas/rzg/board		\
+			-Idrivers/renesas/common		\
+			-Idrivers/renesas/common/iic_dvfs	\
+			-Idrivers/renesas/common/avs		\
+			-Idrivers/renesas/common/delay		\
+			-Idrivers/renesas/common/rom		\
+			-Idrivers/renesas/common/scif		\
+			-Idrivers/renesas/common/emmc		\
+			-Idrivers/renesas/common/pwrc		\
+			-Idrivers/renesas/common/io
+
+BL2_SOURCES	+=	plat/renesas/rzg/bl2_plat_setup.c	\
+			drivers/renesas/rzg/board/board.c
+
+# build the layout images for the bootrom and the necessary srecords
+rzg: rzg_layout_create rzg_srecord
+distclean realclean clean: clean_layout_tool clean_srecord
+
+# layout images
+LAYOUT_TOOLPATH ?= tools/renesas/rzg_layout_create
+
+clean_layout_tool:
+	@echo "clean layout tool"
+	${Q}${MAKE} -C ${LAYOUT_TOOLPATH} clean
+
+.PHONY: rzg_layout_create
+rzg_layout_create:
+	@echo "generating layout srecs"
+	${Q}${MAKE} CPPFLAGS="-D=AARCH64" --no-print-directory -C ${LAYOUT_TOOLPATH}
+
+# srecords
+SREC_PATH	= ${BUILD_PLAT}
+BL2_ELF_SRC	= ${SREC_PATH}/bl2/bl2.elf
+BL31_ELF_SRC	= ${SREC_PATH}/bl31/bl31.elf
+
+clean_srecord:
+	@echo "clean bl2 and bl31 srecs"
+	rm -f ${SREC_PATH}/bl2.srec ${SREC_PATH}/bl31.srec
+
+.PHONY: rzg_srecord
+rzg_srecord: $(BL2_ELF_SRC) $(BL31_ELF_SRC)
+	@echo "generating srec: ${SREC_PATH}/bl2.srec"
+	$(Q)$(OC) -O srec --srec-forceS3 ${BL2_ELF_SRC}  ${SREC_PATH}/bl2.srec
+	@echo "generating srec: ${SREC_PATH}/bl31.srec"
+	$(Q)$(OC) -O srec --srec-forceS3 ${BL31_ELF_SRC} ${SREC_PATH}/bl31.srec