tms570: add basic support for TI TMS570

Signed-off-by: Sean Cross <[email protected]>

Author: xobs

src/target/cortexar.c

@@ -922,6 +922,11 @@ bool cortexr_probe(adiv5_access_port_s *const ap, const target_addr_t base_addre
 	if (!target)
 		return false;
 
+	// TI omitted the designer code on TMS570.
+	if (target->designer_code == 0) {
+		PROBE(ti_tms570_probe);
+	}
+
 #if CONFIG_BMDA == 0
 	gdb_outf("Please report unknown device with Designer 0x%x Part ID 0x%x\n", target->designer_code, target->part_id);
 #else

src/target/meson.build

@@ -341,11 +341,22 @@ target_ti_cortexa = declare_dependency(
 	dependencies: target_cortexar,
 	compile_args: ['-DENABLE_TI_SITARA=1'],
 )
+
+target_ti_cortexr = declare_dependency(
+	sources: files(
+		'ti_tms570.c',
+		'icepick.c'
+	),
+	dependencies: target_cortexar,
+	compile_args: ['-DENABLE_TI_TMS570=1'],
+)
+
 # If the Cortex-A/R target is not enabled, don't enable TI AM335x part support
-if enabled_targets.contains('cortexar')
+if not is_firmware_build or enabled_targets.contains('cortexar')
 	target_ti = [
 		target_ti_cortexm,
 		target_ti_cortexa,
+		target_ti_cortexr,
 	]
 else
 	target_ti = target_ti_cortexm
@@ -414,8 +425,9 @@ libbmd_target_deps = [
 	target_rp,
 	target_sam,
 	target_stm,
-	target_ti_cortexm,
 	target_ti_cortexa,
+	target_ti_cortexm,
+	target_ti_cortexr,
 	target_xilinx,
 ]
 

src/target/target_probe.c

@@ -153,6 +153,7 @@ TARGET_PROBE_WEAK_NOP(stm32l4_probe)
 TARGET_PROBE_WEAK_NOP(stm32mp15_ca7_probe)
 TARGET_PROBE_WEAK_NOP(stm32mp15_cm4_probe)
 TARGET_PROBE_WEAK_NOP(stm32wb0_probe)
+TARGET_PROBE_WEAK_NOP(ti_tms570_probe)
 TARGET_PROBE_WEAK_NOP(zynq7_probe)
 
 LPC55_DP_PREPARE_WEAK_NOP(lpc55_dp_prepare)

src/target/target_probe.h

@@ -104,6 +104,7 @@ bool stm32l4_probe(target_s *target);
 bool stm32mp15_ca7_probe(target_s *target);
 bool stm32mp15_cm4_probe(target_s *target);
 bool stm32wb0_probe(target_s *target);
+bool ti_tms570_probe(target_s *target);
 bool zynq7_probe(target_s *target);
 
 void lpc55_dp_prepare(adiv5_debug_port_s *dp);

src/target/ti_tms570.c

@@ -0,0 +1,29 @@
+#include "general.h"
+#include "target.h"
+#include "target_internal.h"
+#include "cortexar.h"
+
+#define TMS570_SYS_BASE            0xffffff00U
+#define TMS570_SYS_DEVID           (TMS570_SYS_BASE + 0xf0U)
+#define TMS570_SCM_DEVID_ID_MASK   0x7ffe0007U
+#define TMS570_SCM_REVID_ID_TMS570 0x00440005U
+
+/* Base address for the OCRAM regions, including their mirrors (including RETRAM) */
+#define TMS570_SRAM_BASE     0x08000000U
+#define TMS570_SRAM_ECC_BASE 0x08400000U
+#define TMS570_SRAM_SIZE     0x80000U
+
+#define TMS570_OTP_PACKAGE_AND_FLASH_MEMORY_SIZE 0xf008015cU
+
+bool ti_tms570_probe(target_s *const target)
+{
+	const uint32_t part_id = target_mem32_read32(target, TMS570_SYS_DEVID);
+	if (!part_id || ((part_id & TMS570_SCM_DEVID_ID_MASK) != TMS570_SCM_REVID_ID_TMS570)) {
+		return false;
+	}
+
+	target->driver = "TMS570";
+	target_add_ram32(target, TMS570_SRAM_BASE, TMS570_SRAM_SIZE);
+	target_add_ram32(target, TMS570_SRAM_ECC_BASE, TMS570_SRAM_SIZE);
+	return true;
+}