Add an api soc_is_j721e(), and use it to enable certain functionality that is available only on j721e. This detection is needed when DT is not available.
Signed-off-by: Lokesh Vutla lokeshvutla@ti.com Signed-off-by: Suman Anna s-anna@ti.com --- arch/arm/mach-k3/common.c | 10 ++++++++++ arch/arm/mach-k3/common.h | 2 ++ arch/arm/mach-k3/include/mach/hardware.h | 1 + arch/arm/mach-k3/include/mach/sys_proto.h | 2 ++ arch/arm/mach-k3/j721e_init.c | 3 +++ 5 files changed, 18 insertions(+)
diff --git a/arch/arm/mach-k3/common.c b/arch/arm/mach-k3/common.c index 178dc210c3..4e366f8fff 100644 --- a/arch/arm/mach-k3/common.c +++ b/arch/arm/mach-k3/common.c @@ -345,6 +345,16 @@ int print_cpuinfo(void) } #endif
+bool soc_is_j721e(void) +{ + u32 soc; + + soc = (readl(CTRLMMR_WKUP_JTAG_ID) & + JTAG_ID_PARTNO_MASK) >> JTAG_ID_PARTNO_SHIFT; + + return soc == J721E; +} + #ifdef CONFIG_ARM64 void board_prep_linux(bootm_headers_t *images) { diff --git a/arch/arm/mach-k3/common.h b/arch/arm/mach-k3/common.h index 44cf94a174..9c6c3595a2 100644 --- a/arch/arm/mach-k3/common.h +++ b/arch/arm/mach-k3/common.h @@ -8,6 +8,8 @@
#include <asm/armv7_mpu.h>
+#define J721E 0xbb64 + struct fwl_data { const char *name; u16 fwl_id; diff --git a/arch/arm/mach-k3/include/mach/hardware.h b/arch/arm/mach-k3/include/mach/hardware.h index f2ca80af1a..0ad761418b 100644 --- a/arch/arm/mach-k3/include/mach/hardware.h +++ b/arch/arm/mach-k3/include/mach/hardware.h @@ -15,6 +15,7 @@ #endif
/* Assuming these addresses and definitions stay common across K3 devices */ +#define CTRLMMR_WKUP_JTAG_ID 0x43000014 #define JTAG_ID_VARIANT_SHIFT 28 #define JTAG_ID_VARIANT_MASK (0xf << 28) #define JTAG_ID_PARTNO_SHIFT 12 diff --git a/arch/arm/mach-k3/include/mach/sys_proto.h b/arch/arm/mach-k3/include/mach/sys_proto.h index 3c825aa3d1..48b11178c3 100644 --- a/arch/arm/mach-k3/include/mach/sys_proto.h +++ b/arch/arm/mach-k3/include/mach/sys_proto.h @@ -16,4 +16,6 @@ int do_board_detect(void); void release_resources_for_core_shutdown(void); int fdt_disable_node(void *blob, char *node_path);
+bool soc_is_j721e(void); + #endif diff --git a/arch/arm/mach-k3/j721e_init.c b/arch/arm/mach-k3/j721e_init.c index 461a9d7f8f..3b15da2d7c 100644 --- a/arch/arm/mach-k3/j721e_init.c +++ b/arch/arm/mach-k3/j721e_init.c @@ -361,6 +361,9 @@ void start_non_linux_remote_cores(void) int size = 0, ret; u32 loadaddr = 0;
+ if (!soc_is_j721e()) + return; + size = load_firmware("name_mainr5f0_0fw", "addr_mainr5f0_0load", &loadaddr); if (size <= 0)