soc/mediatek/mt8196: Add tracker driver
Tracker is a debugging tool, including AP/INFRA/PERI tracker. When bus timeout occurs, the system reboots and latches some values which could be used for debug. Rename VLPCFG_BASE to VLP_CFG_BASE. TEST=Build pass, When we encounter a bus hang and HW watchdog triggers a reset to the platform, the tracker will print the latched information: [INFO ] **Dump %s aw debug register start** [INFO ] xxxxxx, 0x1c600000, 0x0, 63 This means that the 63rd entry latch accessing 0x1c600000 has a bus timeout. BUG=b:317009620 Signed-off-by: Xiwen Shao <xiwen.shao@mediatek.corp-partner.google.com> Change-Id: Ib9784a370acec45ce36a800f3955b9cf96651298 Reviewed-on: https://review.coreboot.org/c/coreboot/+/84929 Reviewed-by: Yidi Lin <yidilin@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com>
This commit is contained in:
Xiwen Shao
Yidi Lin
parent
78560f9958
commit
8be835ce3c
5 changed files with 175 additions and 1 deletions
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@ -19,6 +19,7 @@ bootblock-y += mminfra.c
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bootblock-y += ../common/mmu_operations.c
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bootblock-y += mtcmos.c
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bootblock-$(CONFIG_PCI) += ../common/pcie.c pcie.c
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bootblock-y += tracker.c
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bootblock-y += ../common/wdt.c ../common/wdt_req.c wdt.c
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romstage-y += ../common/cbmem.c
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@ -8,12 +8,14 @@
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#include <soc/mmu_operations.h>
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#include <soc/pll.h>
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#include <soc/spm_mtcmos.h>
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#include <soc/tracker.h>
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#include <soc/wdt.h>
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void bootblock_soc_init(void)
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{
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booker_init();
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mtk_mmu_init();
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bustracker_init();
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lastbus_init();
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mtk_wdt_init();
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mt_pll_init();
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@ -143,7 +143,7 @@ enum {
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APINFRA_SSR_AO_DEBUG_BASE = IO_PHYS + 0x080F1000,
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AUDIO_BASE = IO_PHYS + 0x0A110000,
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VLP_AO_BASE = IO_PHYS + 0x0C000000,
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VLPCFG_BASE = IO_PHYS + 0x0C001000,
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VLP_CFG_BASE = IO_PHYS + 0x0C001000,
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SPM_BASE = IO_PHYS + 0x0C004000,
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SPM_PBUS_BASE = IO_PHYS + 0x0C00D000,
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RGU_BASE = IO_PHYS + 0x0C010000,
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42
src/soc/mediatek/mt8196/include/soc/tracker.h
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42
src/soc/mediatek/mt8196/include/soc/tracker.h
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@ -0,0 +1,42 @@
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/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
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#ifndef SOC_MEDIATEK_MT8196_TRACKER_H
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#define SOC_MEDIATEK_MT8196_TRACKER_H
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#include <soc/tracker_common.h>
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#include <stdint.h>
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#define BUS_DBG_CON 0x000
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#define BUS_TRACE_CON_AO_PRESCALE 0x8f8
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#define BUS_TRACE_CON_AO_1_PRESCALE 0x9f8
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#define VLP_TRACE_CON_AO_PRESCALE 0x114
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#define BUS_TRACE_CON_1 0x800
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#define BUS_TRACE_CON_AO_1 0x8FC
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#define BUS_TRACE_CON_2 0x900
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#define BUS_TRACE_CON_AO_2 0x9FC
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#define VLP_CON_AO 0x30C
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#define BUS_TRACE_EN 16
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#define SYS_TRACK_ENTRY 64
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#define INFRA_ENTRY_NUM 32
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#define VLP_ENTRY_NUM 4
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#define AR_TRACK_LOG_OFFSET 0x0200
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#define AR_ENTRY_ID_OFFSET 0x0300
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#define AR_TRACK_L_OFFSET 0x0400
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#define AR_TRACK_H_OFFSET 0x0600
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#define AW_TRACK_LOG_OFFSET 0x0800
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#define AW_ENTRY_ID_OFFSET 0x0900
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#define AW_TRACK_L_OFFSET 0x0A00
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#define AW_TRACK_H_OFFSET 0x0C00
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#define BUSTRACKER_TIMEOUT 0x300
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enum {
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TRACKER_SYSTRACKER = 0,
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TRACKER_INFRATRACKER,
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TRACKER_VLPSYSTRACKER,
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TRACKER_NUM,
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};
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#endif
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129
src/soc/mediatek/mt8196/tracker.c
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129
src/soc/mediatek/mt8196/tracker.c
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@ -0,0 +1,129 @@
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/* SPDX-License-Identifier: GPL-2.0-only */
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#include <commonlib/bsd/helpers.h>
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#include <console/console.h>
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#include <device/mmio.h>
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#include <soc/addressmap.h>
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#include <soc/tracker.h>
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/*
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* for systracker:
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* offset[0] dump from offset 0x100 ~ 0x2F8
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* offset[1] dump from offset 0x300 ~ 0x4FC
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*
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* for infra tracker:
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* offset[0] dump from offset 0x100 ~ 0x1F8
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* offset[1] dump from offset 0x300 ~ 0x3FC
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*
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* for vlpsys tracker:
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* offset[0] dump from offset 0x100 ~ 0x2F8
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* offset[1] dump from offset 0x300 ~ 0x4FC
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*/
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static const u32 offsets[] = {
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AR_TRACK_LOG_OFFSET, AR_ENTRY_ID_OFFSET, AR_TRACK_L_OFFSET,
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AR_TRACK_H_OFFSET, AW_TRACK_LOG_OFFSET, AW_ENTRY_ID_OFFSET,
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AW_TRACK_L_OFFSET, AW_TRACK_H_OFFSET,
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};
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struct tracker tracker_data[TRACKER_NUM] = {
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[TRACKER_SYSTRACKER] = {
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.base_addr = INFRA_TRACKER_BASE,
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.timeout = BUS_DBG_CON_TIMEOUT,
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.entry = SYS_TRACK_ENTRY,
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.offsets = offsets,
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.offsets_size = ARRAY_SIZE(offsets),
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.str = "systracker",
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},
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[TRACKER_INFRATRACKER] = {
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.base_addr = INFRA_TRACKER_BASE,
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.timeout = BUS_DBG_CON_TIMEOUT,
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.entry = INFRA_ENTRY_NUM,
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.offsets = offsets,
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.offsets_size = ARRAY_SIZE(offsets),
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.str = "infra_tracker",
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},
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[TRACKER_VLPSYSTRACKER] = {
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.base_addr = VLP_TRACKER_BASE,
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.timeout = BUS_DBG_CON_TIMEOUT,
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.entry = VLP_ENTRY_NUM,
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.offsets = offsets,
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.offsets_size = ARRAY_SIZE(offsets),
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.str = "vlp_tracker",
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},
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};
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void tracker_setup(void)
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{
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u32 val;
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/*
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* Set infra/peri tracker timeout.
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* timeout = clock_in_mhz / 15 * timeout_in_us
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*
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* timeout: 10ms
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* ap tracker clock: 26MHz
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* infra tracker clock: 26MHz
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* vlp tracker clock: 26MHz
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*/
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val = 26 / 15 * 10000;
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write32p(BUS_TRACE_MONITOR_BASE + BUS_TRACE_CON_AO_PRESCALE, val);
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write32p(BUS_TRACE_MONITOR_BASE + BUS_TRACE_CON_AO_1_PRESCALE, val);
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write32p(VLP_CFG_BASE + VLP_TRACE_CON_AO_PRESCALE, val);
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/*
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* Enable infra/peri tracker.
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* bit[0] - BUS_DBG_EN
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* bit[1] - TIMEOUT_EN
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* bit[2] - SLV_ERR_EN
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* bit[13] - HALT_ON_TIMEOUT_EN
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* bit[14] - BUS_OT_WEN_CTRL
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*/
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val = BIT(0) | BIT(1) | BIT(2) | BIT(13) | BIT(14);
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write32p(VLP_AO_BASE + VLP_CON_AO, val);
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write32p(BUS_TRACE_MONITOR_BASE + BUS_TRACE_CON_AO_1, val);
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write32p(BUS_TRACE_MONITOR_BASE + BUS_TRACE_CON_AO_2, val);
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}
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static void tracker_dump_data(void)
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{
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u64 reg_entry;
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int i, j;
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uintptr_t reg_log, reg_id, reg_low, reg_high;
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struct tracker *tra;
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for (j = 0; j < TRACKER_NUM; j++) {
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tra = &tracker_data[j];
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if (!(read32p(tra->base_addr) & tra->timeout))
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continue;
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printk(BIOS_INFO, "**Dump %s ar debug register start**\n", tra->str);
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for (i = 0; i < tra->entry; i++) {
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reg_log = tra->base_addr + tra->offsets[0] + i * 4;
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reg_id = tra->base_addr + tra->offsets[1] + i * 4;
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reg_low = tra->base_addr + tra->offsets[2] + i * 4;
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reg_high = tra->base_addr + tra->offsets[3] + i * 4;
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reg_entry = ((u64)read32p(reg_high)) << 32 | read32p(reg_low);
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printk(BIOS_INFO, "%#lx:%#x:%#x:%#x:%#x:%#llx\n",
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reg_low, read32p(reg_log), read32p(reg_id), read32p(reg_low),
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read32p(reg_high), reg_entry);
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}
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printk(BIOS_INFO, "**Dump %s aw debug register start**\n", tra->str);
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for (i = 0; i < tra->entry; i++) {
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reg_log = tra->base_addr + tra->offsets[4] + i * 4;
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reg_id = tra->base_addr + tra->offsets[5] + i * 4;
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reg_low = tra->base_addr + tra->offsets[6] + i * 4;
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reg_high = tra->base_addr + tra->offsets[7] + i * 4;
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reg_entry = ((u64)read32p(reg_high)) << 32 | read32p(reg_low);
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printk(BIOS_INFO, "%#lx:%#x:%#x:%#x:%#x:%#llx\n",
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reg_low, read32p(reg_log), read32p(reg_id), read32p(reg_low),
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read32p(reg_high), reg_entry);
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}
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printk(BIOS_INFO, "**Dump %s debug register end**\n", tra->str);
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}
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}
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void bustracker_init(void)
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{
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tracker_dump_data();
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tracker_setup();
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}
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