Beispiel #1
0
static void fa526_read_core_regs(struct target *target,
		uint32_t mask, uint32_t *core_regs[16])
{
	int i;
	struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
	struct arm_jtag *jtag_info = &arm7_9->jtag_info;

	/* STMIA r0-15, [r0] at debug speed
	 * register values will start to appear on 4th DCLK
	 */
	arm9tdmi_clock_out(jtag_info, ARMV4_5_STMIA(0, mask & 0xffff, 0, 0), 0, NULL, 0);

	/* fetch NOP, STM in DECODE stage */
	arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 0);
	/* fetch NOP, STM in SHIFT stage */
	arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 0);
	/* fetch NOP, STM in EXECUTE stage (1st cycle) */
	arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 0);

	for (i = 0; i <= 15; i++) {
		if (mask & (1 << i))
			/* nothing fetched, STM in MEMORY (i'th cycle) */
			arm9tdmi_clock_data_in(jtag_info, core_regs[i]);
	}
}
Beispiel #2
0
void arm9tdmi_read_core_regs(target_t *target, u32 mask, u32* core_regs[16])
{
	int i;
	/* get pointers to arch-specific information */
	armv4_5_common_t *armv4_5 = target->arch_info;
	arm7_9_common_t *arm7_9 = armv4_5->arch_info;
	arm_jtag_t *jtag_info = &arm7_9->jtag_info;
		
	/* STMIA r0-15, [r0] at debug speed
	 * register values will start to appear on 4th DCLK
	 */
	arm9tdmi_clock_out(jtag_info, ARMV4_5_STMIA(0, mask & 0xffff, 0, 0), 0, NULL, 0);

	/* fetch NOP, STM in DECODE stage */
	arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 0);
	/* fetch NOP, STM in EXECUTE stage (1st cycle) */
	arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 0);

	for (i = 0; i <= 15; i++)
	{
		if (mask & (1 << i))
			/* nothing fetched, STM in MEMORY (i'th cycle) */
			arm9tdmi_clock_data_in(jtag_info, core_regs[i]);
	}

}