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arm: k3: Add support for printing CPUINFO
Add support for printing CPU info for all K3 devices. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
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@ -14,6 +14,8 @@
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#include <linux/soc/ti/ti_sci_protocol.h>
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#include <fdt_support.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/hardware.h>
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#include <asm/io.h>
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struct ti_sci_handle *get_ti_sci_handle(void)
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{
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@ -190,3 +192,43 @@ void reset_cpu(ulong ignored)
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{
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}
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#endif
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#if defined(CONFIG_DISPLAY_CPUINFO)
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int print_cpuinfo(void)
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{
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u32 soc, rev;
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char *name;
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soc = (readl(CTRLMMR_WKUP_JTAG_DEVICE_ID) &
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DEVICE_ID_FAMILY_MASK) >> DEVICE_ID_FAMILY_SHIFT;
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rev = (readl(CTRLMMR_WKUP_JTAG_ID) &
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JTAG_ID_VARIANT_MASK) >> JTAG_ID_VARIANT_SHIFT;
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printf("SoC: ");
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switch (soc) {
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case AM654:
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name = "AM654";
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break;
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case J721E:
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name = "J721E";
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break;
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default:
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name = "Unknown Silicon";
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};
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printf("%s PG ", name);
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switch (rev) {
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case REV_PG1_0:
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name = "1.0";
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break;
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case REV_PG2_0:
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name = "2.0";
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break;
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default:
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name = "Unknown Revision";
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};
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printf("%s\n", name);
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return 0;
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}
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#endif
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@ -8,5 +8,11 @@
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#include <asm/armv7_mpu.h>
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#define AM654 2
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#define J721E 4
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#define REV_PG1_0 0
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#define REV_PG2_0 1
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void setup_k3_mpu_regions(void);
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int early_console_init(void);
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@ -13,4 +13,22 @@
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#ifdef CONFIG_SOC_K3_J721E
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#include "j721e_hardware.h"
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#endif
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/* Assuming these addresses and definitions stay common across K3 devices */
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#define CTRLMMR_WKUP_JTAG_DEVICE_ID 0x43000018
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#define DEVICE_ID_FAMILY_SHIFT 26
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#define DEVICE_ID_FAMILY_MASK (0x3f << 26)
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#define DEVICE_ID_BASE_SHIFT 11
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#define DEVICE_ID_BASE_MASK (0x1fff << 11)
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#define DEVICE_ID_SPEED_SHIFT 6
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#define DEVICE_ID_SPEED_MASK (0x1f << 6)
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#define DEVICE_ID_TEMP_SHIFT 3
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#define DEVICE_ID_TEMP_MASK (0x7 << 3)
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#define CTRLMMR_WKUP_JTAG_ID 0x43000014
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#define JTAG_ID_VARIANT_SHIFT 28
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#define JTAG_ID_VARIANT_MASK (0xf << 28)
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#define JTAG_ID_PARTNO_SHIFT 12
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#define JTAG_ID_PARTNO_MASK (0x7ff << 1)
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#endif /* _ASM_ARCH_HARDWARE_H_ */
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