Add CPU info support for RZ/G2 SoC's.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
imply CLK_R8A77995
imply PINCTRL_PFC_R8A77995
+config RZ_G2
+ bool "Renesas ARM SoCs RZ/G2 (64bit)"
+
endmenu
choice
imply R8A774A1
imply R8A774B1
imply R8A774E1
+ imply RZ_G2
imply SYS_MALLOC_F
imply MULTI_DTB_FIT
imply MULTI_DTB_FIT_USER_DEFINED_AREA
config TARGET_SILINUX_EK874
bool "Silicon Linux EK874 board"
imply R8A774C0
+ imply RZ_G2
help
Support for Silicon Linux EK874 platform
obj-$(CONFIG_R8A7740) += lowlevel_init.o cpu_info-r8a7740.o pfc-r8a7740.o
obj-$(CONFIG_RCAR_GEN2) += lowlevel_init_ca15.o cpu_info-rcar.o
obj-$(CONFIG_RCAR_GEN3) += lowlevel_init_gen3.o cpu_info-rcar.o memmap-gen3.o
+obj-$(CONFIG_RZ_G2) += cpu_info-rzg.o
OBJCOPYFLAGS_u-boot-spl.srec := -O srec
quiet_cmd_objcopy = OBJCOPY $@
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021 Renesas Electronics Corporation
+ *
+ */
+#include <common.h>
+#include <linux/libfdt.h>
+
+/* If the firmware passed a device tree, use it for soc identification. */
+extern u64 rcar_atf_boot_args[];
+
+/* CPU information table */
+static const struct {
+ char *soc_name;
+ u8 cpu_name[10];
+} tfa_info[] = {
+ { "renesas,r8a774a1", "R8A774A1" },
+ { "renesas,r8a774b1", "R8A774B1" },
+ { "renesas,r8a774c0", "R8A774C0" },
+ { "renesas,r8a774e1", "R8A774E1" }
+};
+
+const u8 *rzg_get_cpu_name(void)
+{
+ void *atf_fdt_blob = (void *)(rcar_atf_boot_args[1]);
+ bool ret = false;
+ int i;
+
+ if (fdt_magic(atf_fdt_blob) != FDT_MAGIC)
+ return NULL;
+
+ for (i = 0; i < ARRAY_SIZE(tfa_info); i++) {
+ if (fdt_node_check_compatible(atf_fdt_blob, 0,
+ tfa_info[i].soc_name) == 0) {
+ ret = true;
+ break;
+ }
+ }
+
+ return ret ? tfa_info[i].cpu_name : NULL;
+}
// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
- * (C) Copyright 2012 Renesas Solutions Corp.
+ * (C) Copyright 2012-2021 Renesas Solutions Corp.
*/
#include <common.h>
#include <cpu_func.h>
#ifdef CONFIG_DISPLAY_CPUINFO
#ifndef CONFIG_RZA1
+__weak const u8 *rzg_get_cpu_name(void)
+{
+ return 0;
+}
+
static u32 __rmobile_get_cpu_type(void)
{
return 0x0;
u32 rmobile_get_cpu_rev_fraction(void)
__attribute__((weak, alias("__rmobile_get_cpu_rev_fraction")));
-/* CPU infomation table */
+/* CPU information table */
static const struct {
u16 cpu_type;
u8 cpu_name[10];
return i;
}
+static const u8 *get_cpu_name(int idx)
+{
+ const u8 *cpu_name = rzg_get_cpu_name();
+
+ return cpu_name ? cpu_name : rmobile_cpuinfo[idx].cpu_name;
+}
+
#ifdef CONFIG_ARCH_MISC_INIT
int arch_misc_init(void)
{
int i, idx = rmobile_cpuinfo_idx();
+ const u8 *cpu_name = get_cpu_name(idx);
char cpu[10] = { 0 };
for (i = 0; i < sizeof(cpu); i++)
- cpu[i] = tolower(rmobile_cpuinfo[idx].cpu_name[i]);
+ cpu[i] = tolower(cpu_name[i]);
env_set("platform", cpu);
int i = rmobile_cpuinfo_idx();
printf("CPU: Renesas Electronics %s rev %d.%d\n",
- rmobile_cpuinfo[i].cpu_name, rmobile_get_cpu_rev_integer(),
+ get_cpu_name(i), rmobile_get_cpu_rev_integer(),
rmobile_get_cpu_rev_fraction());
return 0;
#define RMOBILE_CPU_TYPE_R8A77995 0x58
#ifndef __ASSEMBLY__
+const u8 *rzg_get_cpu_name(void);
u32 rmobile_get_cpu_type(void);
u32 rmobile_get_cpu_rev_integer(void);
u32 rmobile_get_cpu_rev_fraction(void);