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authorHuayang Duan <huayang.duan@mediatek.com>2020-08-06 15:33:38 +0800
committerHung-Te Lin <hungte@chromium.org>2020-12-10 14:04:59 +0000
commit916e2efad4daaf6572107ed2e9b669e434eb5629 (patch)
tree6b3c2f6a79404534fd7ee00e413f8d46db124164 /src/soc/mediatek
parent344f68be108fca3b9fe8e4280ce8015f1dd8c8e1 (diff)
downloadcoreboot-916e2efad4daaf6572107ed2e9b669e434eb5629.tar.xz
soc/mediatek/mt8192: Init DPM
DPM is a hardware module for DRAM power management and for better power saving in low power mode. BUG=none TEST=Boots correctly on Asurada Signed-off-by: Huayang Duan <huayang.duan@mediatek.com> Change-Id: I16b341ad63940b45b886c4a7fd733c1970624e40 Reviewed-on: https://review.coreboot.org/c/coreboot/+/46393 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/mediatek')
-rw-r--r--src/soc/mediatek/mt8192/Kconfig12
-rw-r--r--src/soc/mediatek/mt8192/Makefile.inc3
-rw-r--r--src/soc/mediatek/mt8192/dpm.c48
-rw-r--r--src/soc/mediatek/mt8192/include/soc/addressmap.h3
-rw-r--r--src/soc/mediatek/mt8192/include/soc/dpm.h49
5 files changed, 115 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8192/Kconfig b/src/soc/mediatek/mt8192/Kconfig
index 36ad2e3e01..67e5a52008 100644
--- a/src/soc/mediatek/mt8192/Kconfig
+++ b/src/soc/mediatek/mt8192/Kconfig
@@ -45,6 +45,18 @@ config MEMORY_TEST
This option enables memory basic compare test to verify the DRAM read
or write is as expected.
+config DPM_DM_FIRMWARE
+ string
+ default "dpm.dm"
+ help
+ The file name of the MediaTek DPM DM firmware
+
+config DPM_PM_FIRMWARE
+ string
+ default "dpm.pm"
+ help
+ The file name of the MediaTek DPM PM firmware
+
config MCUPM_FIRMWARE
string
default "mcupm.bin"
diff --git a/src/soc/mediatek/mt8192/Makefile.inc b/src/soc/mediatek/mt8192/Makefile.inc
index 2fc8f39ee0..c02eabc1e1 100644
--- a/src/soc/mediatek/mt8192/Makefile.inc
+++ b/src/soc/mediatek/mt8192/Makefile.inc
@@ -35,6 +35,7 @@ romstage-y += pmif.c pmif_clk.c pmif_spi.c pmif_spmi.c
romstage-y += mt6359p.c
ramstage-y += ../common/auxadc.c
+ramstage-y += dpm.c
ramstage-y += flash_controller.c
ramstage-y += ../common/gpio.c gpio.c
ramstage-y += emi.c
@@ -52,6 +53,8 @@ ramstage-y += ../common/usb.c usb.c
MT8192_BLOB_DIR := 3rdparty/blobs/soc/mediatek/mt8192
mcu-firmware-files := \
+ $(CONFIG_DPM_DM_FIRMWARE) \
+ $(CONFIG_DPM_PM_FIRMWARE) \
$(CONFIG_MCUPM_FIRMWARE) \
$(CONFIG_SPM_FIRMWARE)
diff --git a/src/soc/mediatek/mt8192/dpm.c b/src/soc/mediatek/mt8192/dpm.c
new file mode 100644
index 0000000000..7acdf68feb
--- /dev/null
+++ b/src/soc/mediatek/mt8192/dpm.c
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <console/console.h>
+#include <device/mmio.h>
+#include <soc/dpm.h>
+#include <soc/mcu_common.h>
+#include <soc/symbols.h>
+
+static void reset_dpm(struct mtk_mcu *mcu)
+{
+ /* write bootargs */
+ write32(&mtk_dpm->twam_window_len, 0x0);
+ write32(&mtk_dpm->twam_mon_type, 0x0);
+
+ /* free RST */
+ setbits32(&mtk_dpm->sw_rstn, DPM_SW_RSTN_RESET);
+}
+
+static struct mtk_mcu dpm_mcu[] = {
+ {
+ .firmware_name = CONFIG_DPM_DM_FIRMWARE,
+ .run_address = (void *)DPM_DM_SRAM_BASE,
+ },
+ {
+ .firmware_name = CONFIG_DPM_PM_FIRMWARE,
+ .run_address = (void *)DPM_PM_SRAM_BASE,
+ .reset = reset_dpm,
+ },
+};
+
+int dpm_init(void)
+{
+ int i;
+ struct mtk_mcu *dpm;
+
+ /* config DPM SRAM layout */
+ clrsetbits32(&mtk_dpm->sw_rstn, DPM_MEM_RATIO_MASK, DPM_MEM_RATIO_CFG1);
+
+ for (i = 0; i < ARRAY_SIZE(dpm_mcu); i++) {
+ dpm = &dpm_mcu[i];
+ dpm->load_buffer = _dram_dma;
+ dpm->buffer_size = REGION_SIZE(dram_dma);
+ if (mtk_init_mcu(dpm))
+ return -1;
+ }
+
+ return 0;
+}
diff --git a/src/soc/mediatek/mt8192/include/soc/addressmap.h b/src/soc/mediatek/mt8192/include/soc/addressmap.h
index c68403b2b5..2e8ac9e715 100644
--- a/src/soc/mediatek/mt8192/include/soc/addressmap.h
+++ b/src/soc/mediatek/mt8192/include/soc/addressmap.h
@@ -27,6 +27,9 @@ enum {
PMIF_SPMI_BASE = IO_PHYS + 0x00027000,
PMICSPI_MST_BASE = IO_PHYS + 0x00028000,
SPMI_MST_BASE = IO_PHYS + 0x00029000,
+ DPM_PM_SRAM_BASE = IO_PHYS + 0x00900000,
+ DPM_DM_SRAM_BASE = IO_PHYS + 0x00920000,
+ DPM_CFG_BASE = IO_PHYS + 0x00940000,
AUXADC_BASE = IO_PHYS + 0x01001000,
UART0_BASE = IO_PHYS + 0x01002000,
SPI0_BASE = IO_PHYS + 0x0100A000,
diff --git a/src/soc/mediatek/mt8192/include/soc/dpm.h b/src/soc/mediatek/mt8192/include/soc/dpm.h
new file mode 100644
index 0000000000..f5e704bc10
--- /dev/null
+++ b/src/soc/mediatek/mt8192/include/soc/dpm.h
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __SOC_MEDIATEK_MT8192_DPM_H__
+#define __SOC_MEDIATEK_MT8192_DPM_H__
+
+#include <soc/addressmap.h>
+#include <stdint.h>
+#include <types.h>
+
+struct dpm_regs {
+ u32 sw_rstn;
+ u32 rsvd_0[3072];
+ u32 mclk_div;
+ u32 rsvd_1[3071];
+ u32 twam_window_len;
+ u32 twam_mon_type;
+ u32 rsvd_2[1022];
+ u32 low_power_cfg_0;
+ u32 low_power_cfg_1;
+ u32 rsvd_3[1];
+ u32 fsm_out_ctrl_0;
+ u32 rsvd_4[8];
+ u32 fsm_cfg_1;
+ u32 low_power_cfg_3;
+ u32 dfd_dbug_0;
+ u32 rsvd_5[28];
+ u32 status_4;
+};
+
+check_member(dpm_regs, mclk_div, 0x3004);
+check_member(dpm_regs, twam_window_len, 0x6004);
+check_member(dpm_regs, low_power_cfg_0, 0x7004);
+check_member(dpm_regs, low_power_cfg_1, 0x7008);
+check_member(dpm_regs, fsm_out_ctrl_0, 0x7010);
+check_member(dpm_regs, fsm_cfg_1, 0x7034);
+check_member(dpm_regs, low_power_cfg_3, 0x7038);
+check_member(dpm_regs, dfd_dbug_0, 0x703C);
+check_member(dpm_regs, status_4, 0x70B0);
+
+#define DPM_SW_RSTN_RESET BIT(0)
+#define DPM_MEM_RATIO_OFFSET 28
+#define DPM_MEM_RATIO_MASK (0x3 << DPM_MEM_RATIO_OFFSET)
+#define DPM_MEM_RATIO_CFG1 (1 << DPM_MEM_RATIO_OFFSET)
+
+static struct dpm_regs *const mtk_dpm = (void *)DPM_CFG_BASE;
+
+int dpm_init(void);
+
+#endif /* __SOC_MEDIATEK_MT8192_DPM_H__ */