Add CPU and PRR IDs for R8A774A1(a.k.a RZ/G2M) SoC.
RZ/Gx SoC's are identical to R-Car SoC's apart from some automotive peripherals and they also share the same PRR CPU ID's.
For example the RZ/G2M SoC has the same PRR ID 0x52 as R-Car M3W SoC.
For RZ/G2 SoC identification compatible string from TFA are matched against the list of compatible strings in struct tfa_cpuinfo.
Also sorted the header alphabetically.
Signed-off-by: Biju Das biju.das.jz@bp.renesas.com Reviewed-by: Lad Prabhakar prabhakar.mahadev-lad.rj@bp.renesas.com --- v2->v3 * Reworked as per Marek's suggestion * Added rzg2_get_cpu_type function to get cpu_type by matching TFA compatible string * Removed SoC family type Enum --- arch/arm/mach-rmobile/cpu_info.c | 42 ++++++++++++++++++-- arch/arm/mach-rmobile/include/mach/rmobile.h | 4 ++ 2 files changed, 42 insertions(+), 4 deletions(-)
diff --git a/arch/arm/mach-rmobile/cpu_info.c b/arch/arm/mach-rmobile/cpu_info.c index fdbbd72e28..f605215b48 100644 --- a/arch/arm/mach-rmobile/cpu_info.c +++ b/arch/arm/mach-rmobile/cpu_info.c @@ -3,12 +3,13 @@ * (C) Copyright 2012 Nobuhiro Iwamatsu nobuhiro.iwamatsu.yj@renesas.com * (C) Copyright 2012 Renesas Solutions Corp. */ -#include <common.h> -#include <cpu_func.h> #include <asm/cache.h> -#include <init.h> #include <asm/io.h> +#include <common.h> +#include <cpu_func.h> +#include <dm/device.h> #include <env.h> +#include <init.h> #include <linux/ctype.h>
#ifdef CONFIG_ARCH_CPU_INIT @@ -52,6 +53,37 @@ static u32 __rmobile_get_cpu_rev_fraction(void) u32 rmobile_get_cpu_rev_fraction(void) __attribute__((weak, alias("__rmobile_get_cpu_rev_fraction")));
+#if CONFIG_IS_ENABLED(OF_CONTROL) +static const struct udevice_id tfa_soc_ids[] = { + { .compatible = "renesas,r8a774a1", .data = RMOBILE_CPU_TYPE_R8A774A1 }, + { }, +}; + +static const u16 rzg2_get_cpu_type(void) +{ + const struct udevice_id *of_match = tfa_soc_ids; + u32 cpu_type = rmobile_get_cpu_type(); + int i; + + for (i = 0; i < ARRAY_SIZE(tfa_soc_ids); i++) { + if (cpu_type == of_match->data && + of_machine_is_compatible(of_match->compatible)) + return (cpu_type | RZG_CPU_MASK); + of_match++; + } + + return 0; +} +#else +static const u16 __rzg2_get_cpu_type(void) +{ + return 0; +} + +const u16 rzg2_get_cpu_type(void) + __attribute__((weak, alias("__rzg2_get_cpu_type"))); +#endif + /* CPU infomation table */ static const struct { u16 cpu_type; @@ -59,6 +91,7 @@ static const struct { } rmobile_cpuinfo[] = { { RMOBILE_CPU_TYPE_SH73A0, "SH73A0" }, { RMOBILE_CPU_TYPE_R8A7740, "R8A7740" }, + { RMOBILE_CPU_TYPE_R8A774A1 | RZG_CPU_MASK, "R8A774A1" }, { RMOBILE_CPU_TYPE_R8A7790, "R8A7790" }, { RMOBILE_CPU_TYPE_R8A7791, "R8A7791" }, { RMOBILE_CPU_TYPE_R8A7792, "R8A7792" }, @@ -77,7 +110,8 @@ static const struct { static int rmobile_cpuinfo_idx(void) { int i = 0; - u32 cpu_type = rmobile_get_cpu_type(); + u16 rzg2_cpu_type = rzg2_get_cpu_type(); + u32 cpu_type = rzg2_cpu_type ? rzg2_cpu_type : rmobile_get_cpu_type();
for (; i < ARRAY_SIZE(rmobile_cpuinfo); i++) if (rmobile_cpuinfo[i].cpu_type == cpu_type) diff --git a/arch/arm/mach-rmobile/include/mach/rmobile.h b/arch/arm/mach-rmobile/include/mach/rmobile.h index a50249dc96..d0a4cfc579 100644 --- a/arch/arm/mach-rmobile/include/mach/rmobile.h +++ b/arch/arm/mach-rmobile/include/mach/rmobile.h @@ -27,6 +27,7 @@ /* PRR CPU IDs */ #define RMOBILE_CPU_TYPE_SH73A0 0x37 #define RMOBILE_CPU_TYPE_R8A7740 0x40 +#define RMOBILE_CPU_TYPE_R8A774A1 0x52 #define RMOBILE_CPU_TYPE_R8A7790 0x45 #define RMOBILE_CPU_TYPE_R8A7791 0x47 #define RMOBILE_CPU_TYPE_R8A7792 0x4A @@ -40,6 +41,9 @@ #define RMOBILE_CPU_TYPE_R8A77990 0x57 #define RMOBILE_CPU_TYPE_R8A77995 0x58
+/* RZ/G CPU Identification Mask */ +#define RZG_CPU_MASK 0x1000 + #ifndef __ASSEMBLY__ u32 rmobile_get_cpu_type(void); u32 rmobile_get_cpu_rev_integer(void);