Adding upstream version 2.8.0+dfsg.upstream/2.8.0+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

3 files changed, 379 insertions, 0 deletions

diff --git a/plat/mediatek/mt8186/drivers/spmc/mtspmc.c b/plat/mediatek/mt8186/drivers/spmc/mtspmc.c
new file mode 100644
index 0000000..91ef096
--- /dev/null
+++ b/plat/mediatek/mt8186/drivers/spmc/mtspmc.c
@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 2021, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+
+#include <common/debug.h>
+#include <drivers/delay_timer.h>
+#include <lib/mmio.h>
+
+#include <mcucfg.h>
+#include <mtspmc.h>
+#include <mtspmc_private.h>
+#include <plat/common/platform.h>
+
+void mcucfg_disable_gic_wakeup(unsigned int cluster, unsigned int cpu)
+{
+	mmio_setbits_32(MCUCFG_CPC_FLOW_CTRL_CFG, GIC_WAKEUP_IGNORE(cpu));
+}
+
+void mcucfg_enable_gic_wakeup(unsigned int cluster, unsigned int cpu)
+{
+	mmio_clrbits_32(MCUCFG_CPC_FLOW_CTRL_CFG, GIC_WAKEUP_IGNORE(cpu));
+	/* Clear cpu's cpc sw hint */
+	mmio_write_32(CPC_MCUSYS_CPU_ON_SW_HINT_CLR, BIT(cpu));
+}
+
+void mcucfg_set_bootaddr(unsigned int cluster, unsigned int cpu, uintptr_t bootaddr)
+{
+	assert(cluster == 0U);
+
+	mmio_write_32(per_cpu(cluster, cpu, MCUCFG_BOOTADDR), bootaddr);
+}
+
+uintptr_t mcucfg_get_bootaddr(unsigned int cluster, unsigned int cpu)
+{
+	assert(cluster == 0U);
+
+	return (uintptr_t)mmio_read_32(per_cpu(cluster, cpu, MCUCFG_BOOTADDR));
+}
+
+void mcucfg_init_archstate(unsigned int cluster, unsigned int cpu, bool arm64)
+{
+	uint32_t reg;
+
+	assert(cluster == 0U);
+
+	reg = per_cluster(cluster, MCUCFG_INITARCH);
+
+	if (arm64) {
+		mmio_setbits_32(reg, MCUCFG_INITARCH_CPU_BIT(cpu));
+	} else {
+		mmio_clrbits_32(reg, MCUCFG_INITARCH_CPU_BIT(cpu));
+	}
+}
+
+/*
+ * Return subsystem's power state.
+ *
+ * @mask: mask to SPM_CPU_PWR_STATUS to query the power state
+ *        of one subsystem.
+ * RETURNS:
+ * 0 (the subsys was powered off)
+ * 1 (the subsys was powered on)
+ */
+bool spm_get_powerstate(uint32_t mask)
+{
+	return (mmio_read_32(SPM_CPU_PWR_STATUS) & mask);
+}
+
+bool spm_get_cluster_powerstate(unsigned int cluster)
+{
+	assert(cluster == 0U);
+
+	return spm_get_powerstate(MP0_CPUTOP);
+}
+
+bool spm_get_cpu_powerstate(unsigned int cluster, unsigned int cpu)
+{
+	uint32_t mask = BIT(cpu);
+
+	assert(cluster == 0U);
+
+	return spm_get_powerstate(mask);
+}
+
+int spmc_init(void)
+{
+	unsigned int cpu = plat_my_core_pos();
+
+
+	INFO("SPM: enable CPC mode\n");
+
+	mmio_write_32(SPM_POWERON_CONFIG_EN, PROJECT_CODE | BCLK_CG_EN);
+
+	mmio_setbits_32(per_cpu(0, 1, SPM_CPU_PWR), PWR_RST_B);
+	mmio_setbits_32(per_cpu(0, 2, SPM_CPU_PWR), PWR_RST_B);
+	mmio_setbits_32(per_cpu(0, 3, SPM_CPU_PWR), PWR_RST_B);
+	mmio_setbits_32(per_cpu(0, 4, SPM_CPU_PWR), PWR_RST_B);
+	mmio_setbits_32(per_cpu(0, 5, SPM_CPU_PWR), PWR_RST_B);
+	mmio_setbits_32(per_cpu(0, 6, SPM_CPU_PWR), PWR_RST_B);
+	mmio_setbits_32(per_cpu(0, 7, SPM_CPU_PWR), PWR_RST_B);
+
+	mmio_clrbits_32(SPM_MCUSYS_PWR_CON, RESETPWRON_CONFIG);
+	mmio_clrbits_32(SPM_MP0_CPUTOP_PWR_CON, RESETPWRON_CONFIG);
+	mmio_clrbits_32(per_cpu(0, 0, SPM_CPU_PWR), RESETPWRON_CONFIG);
+
+	mmio_setbits_32(MCUCFG_CPC_FLOW_CTRL_CFG, CPC_CTRL_ENABLE);
+
+	/* Clear bootup cpu's cpc sw hint */
+	mmio_write_32(CPC_MCUSYS_CPU_ON_SW_HINT_CLR, BIT(cpu));
+
+	return 0;
+}
+
+/*
+ * Power on a core with specified cluster and core index
+ *
+ * @cluster: the cluster ID of the CPU which to be powered on
+ * @cpu: the CPU ID of the CPU which to be powered on
+ */
+void spm_poweron_cpu(unsigned int cluster, unsigned int cpu)
+{
+	/* info CPC that CPU hotplug on */
+	mmio_setbits_32(MCUCFG_CPC_FLOW_CTRL_CFG, SSPM_ALL_PWR_CTRL_EN);
+
+	/* Set mp0_spmc_pwr_on_cpuX = 1 */
+	mmio_setbits_32(per_cpu(cluster, cpu, SPM_CPU_PWR), PWR_ON);
+
+	/* wait for power on ack */
+	while (!spm_get_cpu_powerstate(cluster, cpu))
+		;
+
+	/* info CPC that CPU hotplug off */
+	mmio_clrbits_32(MCUCFG_CPC_FLOW_CTRL_CFG, SSPM_ALL_PWR_CTRL_EN);
+}
+
+/*
+ * Power off a core with specified cluster and core index
+ *
+ * @cluster: the cluster ID of the CPU which to be powered off
+ * @cpu: the CPU ID of the CPU which to be powered off
+ */
+void spm_poweroff_cpu(unsigned int cluster, unsigned int cpu)
+{
+	/* Set mp0_spmc_pwr_on_cpuX = 0 */
+	mmio_clrbits_32(per_cpu(cluster, cpu, SPM_CPU_PWR), PWR_ON);
+}
+
+/*
+ * Power off a cluster with specified index
+ *
+ * @cluster: the cluster index which to be powered off
+ */
+void spm_poweroff_cluster(unsigned int cluster)
+{
+	/* No need to power on/off cluster on single cluster platform */
+	assert(false);
+}
+
+/*
+ * Power on a cluster with specified index
+ *
+ * @cluster: the cluster index which to be powered on
+ */
+void spm_poweron_cluster(unsigned int cluster)
+{
+	/* No need to power on/off cluster on single cluster platform */
+	assert(false);
+}
diff --git a/plat/mediatek/mt8186/drivers/spmc/mtspmc.h b/plat/mediatek/mt8186/drivers/spmc/mtspmc.h
new file mode 100644
index 0000000..768599b
--- /dev/null
+++ b/plat/mediatek/mt8186/drivers/spmc/mtspmc.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2021, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MTSPMC_H
+#define MTSPMC_H
+
+#include <stdint.h>
+
+int spmc_init(void);
+
+void spm_poweron_cpu(unsigned int cluster, unsigned int cpu);
+void spm_poweroff_cpu(unsigned int cluster, unsigned int cpu);
+
+void spm_poweroff_cluster(unsigned int cluster);
+void spm_poweron_cluster(unsigned int cluster);
+
+bool spm_get_cpu_powerstate(unsigned int cluster, unsigned int cpu);
+bool spm_get_cluster_powerstate(unsigned int cluster);
+bool spm_get_powerstate(uint32_t mask);
+
+void mcucfg_init_archstate(unsigned int cluster, unsigned int cpu, bool arm64);
+void mcucfg_set_bootaddr(unsigned int cluster, unsigned int cpu, uintptr_t bootaddr);
+uintptr_t mcucfg_get_bootaddr(unsigned int cluster, unsigned int cpu);
+
+void mcucfg_disable_gic_wakeup(unsigned int cluster, unsigned int cpu);
+void mcucfg_enable_gic_wakeup(unsigned int cluster, unsigned int cpu);
+
+#endif /* MTSPMC_H */
diff --git a/plat/mediatek/mt8186/drivers/spmc/mtspmc_private.h b/plat/mediatek/mt8186/drivers/spmc/mtspmc_private.h
new file mode 100644
index 0000000..472b54c
--- /dev/null
+++ b/plat/mediatek/mt8186/drivers/spmc/mtspmc_private.h
@@ -0,0 +1,176 @@
+/*
+ * Copyright (c) 2021, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MTSPMC_PRIVATE_H
+#define MTSPMC_PRIVATE_H
+
+#include <lib/utils_def.h>
+#include <platform_def.h>
+
+unsigned long read_cpuectlr(void);
+void write_cpuectlr(unsigned long cpuectlr);
+
+unsigned long read_cpupwrctlr_el1(void);
+void write_cpupwrctlr_el1(unsigned long cpuectlr);
+
+/* per_cpu/cluster helper */
+struct per_cpu_reg {
+	unsigned int cluster_addr;
+	unsigned int cpu_stride;
+};
+
+#define per_cpu(cluster, cpu, reg)	\
+	(reg[cluster].cluster_addr + (cpu << reg[cluster].cpu_stride))
+
+#define per_cluster(cluster, reg)	(reg[cluster].cluster_addr)
+
+#define SPM_REG(ofs)			(uint32_t)(SPM_BASE + (ofs))
+#define MCUCFG_REG(ofs)			(uint32_t)(MCUCFG_BASE + (ofs))
+#define INFRACFG_AO_REG(ofs)		(uint32_t)(INFRACFG_AO_BASE + (ofs))
+
+/* SPMC related registers */
+#define SPM_POWERON_CONFIG_EN		SPM_REG(0x000)
+/* bit-fields of SPM_POWERON_CONFIG_EN */
+#define PROJECT_CODE			(U(0xb16) << 16)
+#define BCLK_CG_EN			BIT(0)
+
+#define SPM_PWR_STATUS			SPM_REG(0x16c)
+#define SPM_PWR_STATUS_2ND		SPM_REG(0x170)
+#define SPM_CPU_PWR_STATUS		SPM_REG(0x174)
+
+/* bit-fields of SPM_PWR_STATUS */
+#define MD				BIT(0)
+#define CONN				BIT(1)
+#define DDRPHY				BIT(2)
+#define DISP				BIT(3)
+#define MFG				BIT(4)
+#define ISP				BIT(5)
+#define INFRA				BIT(6)
+#define VDEC				BIT(7)
+#define MP0_CPUTOP			BIT(8)
+#define MP0_CPU0			BIT(9)
+#define MP0_CPU1			BIT(10)
+#define MP0_CPU2			BIT(11)
+#define MP0_CPU3			BIT(12)
+#define MCUSYS				BIT(14)
+#define MP0_CPU4			BIT(15)
+#define MP0_CPU5			BIT(16)
+#define MP0_CPU6			BIT(17)
+#define MP0_CPU7			BIT(18)
+#define VEN				BIT(21)
+
+/* SPMC related registers */
+#define SPM_MCUSYS_PWR_CON		SPM_REG(0x200)
+#define SPM_MP0_CPUTOP_PWR_CON		SPM_REG(0x204)
+#define SPM_MP0_CPU0_PWR_CON		SPM_REG(0x208)
+#define SPM_MP0_CPU1_PWR_CON		SPM_REG(0x20c)
+#define SPM_MP0_CPU2_PWR_CON		SPM_REG(0x210)
+#define SPM_MP0_CPU3_PWR_CON		SPM_REG(0x214)
+#define SPM_MP0_CPU4_PWR_CON		SPM_REG(0x218)
+#define SPM_MP0_CPU5_PWR_CON		SPM_REG(0x21c)
+#define SPM_MP0_CPU6_PWR_CON		SPM_REG(0x220)
+#define SPM_MP0_CPU7_PWR_CON		SPM_REG(0x224)
+
+/* bit-fields of SPM_*_PWR_CON */
+#define PWR_ON_ACK			BIT(31)
+#define VPROC_EXT_OFF			BIT(7)
+#define DORMANT_EN			BIT(6)
+#define RESETPWRON_CONFIG		BIT(5)
+#define PWR_CLK_DIS			BIT(4)
+#define PWR_ON				BIT(2)
+#define PWR_RST_B			BIT(0)
+
+/* per_cpu registers for SPM_MP0_CPU_PWR_CON */
+static const struct per_cpu_reg SPM_CPU_PWR[] = {
+	{ .cluster_addr = SPM_MP0_CPU0_PWR_CON, .cpu_stride = 2U }
+};
+
+/* per_cluster registers for SPM_MP0_CPUTOP_PWR_CON */
+static const struct per_cpu_reg SPM_CLUSTER_PWR[] = {
+	{ .cluster_addr = SPM_MP0_CPUTOP_PWR_CON, .cpu_stride = 0U }
+};
+
+/* MCUCFG related registers */
+#define MCUCFG_MP0_CLUSTER_CFG5		MCUCFG_REG(0xc8e4)
+/* reset vectors */
+#define MCUCFG_MP0_CLUSTER_CFG8		MCUCFG_REG(0xc900)
+#define MCUCFG_MP0_CLUSTER_CFG10	MCUCFG_REG(0xc908)
+#define MCUCFG_MP0_CLUSTER_CFG12	MCUCFG_REG(0xc910)
+#define MCUCFG_MP0_CLUSTER_CFG14	MCUCFG_REG(0xc918)
+#define MCUCFG_MP0_CLUSTER_CFG16	MCUCFG_REG(0xc920)
+#define MCUCFG_MP0_CLUSTER_CFG18	MCUCFG_REG(0xc928)
+#define MCUCFG_MP0_CLUSTER_CFG20	MCUCFG_REG(0xc930)
+#define MCUCFG_MP0_CLUSTER_CFG22	MCUCFG_REG(0xc938)
+
+/* per_cpu registers for MCUCFG_MP0_CLUSTER_CFG */
+static const struct per_cpu_reg MCUCFG_BOOTADDR[] = {
+	{ .cluster_addr = MCUCFG_MP0_CLUSTER_CFG8, .cpu_stride = 3U }
+};
+
+/* per_cpu registers for MCUCFG_MP0_CLUSTER_CFG5 */
+static const struct per_cpu_reg MCUCFG_INITARCH[] = {
+	{ .cluster_addr = MCUCFG_MP0_CLUSTER_CFG5, .cpu_stride = 0U }
+};
+
+#define MCUCFG_INITARCH_CPU_BIT(cpu)	BIT(16U + cpu)
+/* CPC control */
+#define MCUCFG_CPC_FLOW_CTRL_CFG	MCUCFG_REG(0xa814)
+#define MCUCFG_CPC_SPMC_PWR_STATUS	MCUCFG_REG(0xa840)
+
+/* bit-fields of CPC_FLOW_CTRL_CFG */
+#define CPC_CTRL_ENABLE			BIT(16)
+#define SSPM_ALL_PWR_CTRL_EN		BIT(13) /* for cpu-hotplug */
+#define GIC_WAKEUP_IGNORE(cpu)		BIT(21 + cpu)
+
+/* bit-fields of CPC_SPMC_PWR_STATUS */
+#define CORE_SPMC_PWR_ON_ACK		GENMASK(11, 0)
+
+/* APB module infracfg_ao */
+#define INFRA_TOPAXI_PROTECTEN		INFRACFG_AO_REG(0x0220)
+#define INFRA_TOPAXI_PROTECTEN_STA0	INFRACFG_AO_REG(0x0224)
+#define INFRA_TOPAXI_PROTECTEN_STA1	INFRACFG_AO_REG(0x0228)
+#define INFRA_TOPAXI_PROTECTEN_SET	INFRACFG_AO_REG(0x02a0)
+#define INFRA_TOPAXI_PROTECTEN_CLR	INFRACFG_AO_REG(0x02a4)
+#define INFRA_TOPAXI_PROTECTEN_1	INFRACFG_AO_REG(0x0250)
+#define INFRA_TOPAXI_PROTECTEN_STA0_1	INFRACFG_AO_REG(0x0254)
+#define INFRA_TOPAXI_PROTECTEN_STA1_1	INFRACFG_AO_REG(0x0258)
+#define INFRA_TOPAXI_PROTECTEN_1_SET	INFRACFG_AO_REG(0x02a8)
+#define INFRA_TOPAXI_PROTECTEN_1_CLR	INFRACFG_AO_REG(0x02ac)
+
+/* bit-fields of INFRA_TOPAXI_PROTECTEN */
+#define MP0_SPMC_PROT_STEP1_0_MASK	BIT(12)
+#define MP0_SPMC_PROT_STEP1_1_MASK	(BIT(26) | BIT(12))
+
+/* SPARK */
+#define VOLTAGE_04			U(0x40)
+#define VOLTAGE_05			U(0x60)
+
+#define PTP3_CPU0_SPMC_SW_CFG		MCUCFG_REG(0x200)
+#define CPU0_ILDO_CONTROL5		MCUCFG_REG(0x334)
+#define CPU0_ILDO_CONTROL8		MCUCFG_REG(0x340)
+
+/* bit-fields of CPU0_ILDO_CONTROL5 */
+#define ILDO_RET_VOSEL			GENMASK(7, 0)
+
+/* bit-fields of PTP3_CPU_SPMC_SW_CFG */
+#define SW_SPARK_EN			BIT(0)
+
+/* bit-fields of CPU0_ILDO_CONTROL8 */
+#define ILDO_BYPASS_B			BIT(0)
+
+static const struct per_cpu_reg MCUCFG_SPARK[] = {
+	{ .cluster_addr = PTP3_CPU0_SPMC_SW_CFG, .cpu_stride = 11U }
+};
+
+static const struct per_cpu_reg ILDO_CONTROL5[] = {
+	{ .cluster_addr = CPU0_ILDO_CONTROL5, .cpu_stride = 11U }
+};
+
+static const struct per_cpu_reg ILDO_CONTROL8[] = {
+	{ .cluster_addr = CPU0_ILDO_CONTROL8, .cpu_stride = 11U }
+};
+
+#endif /* MTSPMC_PRIVATE_H */