soc/mediatek/mt8189: Enable tracker debug hardware

Tracker is a debugging tool, including AP/INFRA tracker. When bus
timeout occurs, the system reboots and latches some values which could
be used for debug. On MT8189, this feature is enabled by using the
common driver tracker_v3.

BUG=b:379008996
BRANCH=skywalker
TEST=When detected bus timeout, tracker show:
**Dump systracker aw debug register start**
0x10208ae0:0x0:0x0:0x0:0x0:0x0
0x10208ae4:0x0:0x0:0x0:0x0:0x0
0x10208ae8:0x0:0x0:0x0:0x0:0x0
0x10208aec:0x0:0x0:0x0:0x0:0x0
0x10208af0:0x0:0x0:0x0:0x0:0x0
0x10208af4:0x0:0x0:0x0:0x0:0x0
0x10208af8:0xc0000020:0x5:0x101e80:0x0
0x10208afc:0xc0000120:0x100:0x1cc10040
**Dump systracker debug register end**

Signed-off-by: Zexin Wang <ot_zexin.wang@mediatek.corp-partner.google.com>
Change-Id: Icb34c87adc099172abdfc9868ff8e30287e61be0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/89033
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Yidi Lin <yidilin@google.com>

src/soc/mediatek/mt8189/Makefile.mk

@@ -15,6 +15,7 @@ bootblock-y += efuse.c
 bootblock-y += ../common/lastbus_v2.c lastbus.c
 bootblock-y += ../common/mmu_operations.c
 bootblock-y += ../common/mtcmos.c mtcmos.c
+bootblock-y += ../common/tracker_v3.c tracker.c
 bootblock-y += ../common/wdt.c ../common/wdt_req.c wdt.c
 
 romstage-y += ../common/cbmem.c

src/soc/mediatek/mt8189/bootblock.c

@@ -5,11 +5,13 @@
 #include <soc/mmu_operations.h>
 #include <soc/pll.h>
 #include <soc/spm_mtcmos.h>
+#include <soc/tracker.h>
 #include <soc/wdt.h>
 
 void bootblock_soc_init(void)
 {
 	mtk_mmu_init();
+	bustracker_init();
 	lastbus_init();
 	mtk_wdt_init();
 	mt_pll_init();

src/soc/mediatek/mt8189/include/soc/addressmap.h

@@ -9,6 +9,7 @@ enum {
 	MCUPM_SRAM_BASE			= 0x0C540000,
 	MCUPM_CFG_BASE			= 0x0C580000,
 	DBGAO_BASE			= 0x0D01A000,
+	BUS_TRACE_MONITOR_BASE		= 0x0D040000,
 	DEM_BASE			= 0x0D0A0000,
 	IO_PHYS				= 0x10000000,
 };
@@ -38,11 +39,13 @@ enum {
 	DEVAPC_INFRA_AO_BASE		= IO_PHYS + 0x00030000,
 	DEVAPC_INFRA_AO1_BASE		= IO_PHYS + 0x00034000,
 	EMISYS_NAO_DEBUG_BASE		= IO_PHYS + 0x00042000,
+	AP_TRACKER_BASE			= IO_PHYS + 0x00208000,
 	INFRACFG_BASE			= IO_PHYS + 0x0020E000,
 	EMI0_BASE			= IO_PHYS + 0x00219000,
 	EMI0_MPU_BASE			= IO_PHYS + 0x00226000,
 	DRAMC_CHA_AO_BASE		= IO_PHYS + 0x00230000,
 	EMICFG_AO_MEM_BASE		= IO_PHYS + 0x00270000,
+	INFRA_TRACKER_BASE		= IO_PHYS + 0x00314000,
 	THERM_CTRL_BASE			= IO_PHYS + 0x00315000,
 	DPM_PM_SRAM_BASE		= IO_PHYS + 0x00900000,
 	DPM_DM_SRAM_BASE		= IO_PHYS + 0x00920000,

src/soc/mediatek/mt8189/include/soc/tracker.h

@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
+
+#ifndef SOC_MEDIATEK_MT8189_TRACKER_H
+#define SOC_MEDIATEK_MT8189_TRACKER_H
+
+#include <soc/tracker_common.h>
+#include <soc/tracker_v3.h>
+
+#define BUS_DBG_CON			0x000
+#define BUS_DBG_TIMER_CON0_26M		0x050
+#define BUS_TRACE_CON_AO_1		0x8FC
+#define BUS_TRACE_CON_AO_2		0x9FC
+#define BUS_TRACE_EN			16
+
+#define SYS_TRACK_ENTRY			64
+#define INFRA_ENTRY_NUM			32
+
+enum {
+	TRACKER_SYSTRACKER = 0,
+	TRACKER_INFRATRACKER,
+	TRACKER_NUM,
+};
+
+#endif

src/soc/mediatek/mt8189/tracker.c

@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
+
+#include <console/console.h>
+#include <device/mmio.h>
+#include <soc/addressmap.h>
+#include <soc/tracker.h>
+
+struct tracker tracker_data[TRACKER_NUM] = {
+	[TRACKER_SYSTRACKER] = {
+		.base_addr = AP_TRACKER_BASE,
+		.timeout = BUS_DBG_CON_TIMEOUT,
+		.entry = SYS_TRACK_ENTRY,
+		.offsets = tracker_v3_offsets,
+		.offsets_size = TRACKER_V3_OFFSETS_SIZE,
+		.str = "systracker",
+	},
+	[TRACKER_INFRATRACKER] = {
+		.base_addr = INFRA_TRACKER_BASE,
+		.timeout = BUS_DBG_CON_TIMEOUT,
+		.entry = INFRA_ENTRY_NUM,
+		.offsets = tracker_v3_offsets,
+		.offsets_size = TRACKER_V3_OFFSETS_SIZE,
+		.str = "infra_tracker",
+	},
+};
+
+void tracker_setup(void)
+{
+	u32 val;
+	/*
+	 * Set ap/infra tracker timeout.
+	 * timeout = clock_in_mhz / 15 * timeout_in_us
+	 *
+	 * timeout: 200ms
+	 * ap tracker clock: 26MHz
+	 * infra tracker clock: 26MHz
+	 */
+	val = 26 / 15 * 200000;
+
+	write32p(AP_TRACKER_BASE + BUS_DBG_TIMER_CON0_26M, val);
+	write32p(INFRA_TRACKER_BASE + BUS_DBG_TIMER_CON0_26M, val);
+
+	/*
+	 * Enable infra/peri tracker.
+	 * bit[0] - BUS_DBG_EN
+	 * bit[1] - TIMEOUT_EN
+	 * bit[2] - SLV_ERR_EN
+	 * bit[9] - TIMER_CLOCK_SEL
+	 * bit[13] - HALT_ON_TIMEOUT_EN
+	 * bit[14] - BUS_OT_WEN_CTRL
+	 */
+	val = BIT(0) | BIT(1) | BIT(2) | BIT(9) | BIT(13) | BIT(14);
+	write32p(BUS_TRACE_MONITOR_BASE + BUS_TRACE_CON_AO_1, val);
+	write32p(BUS_TRACE_MONITOR_BASE + BUS_TRACE_CON_AO_2, val);
+}