The GPCv2 on the Freescale i.MX8MQ SoC works in the same way as the
GPCv2 on the i.MX7, but only controls more power domains with a
different mapping.
Signed-off-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
---
.../bindings/power/fsl,imx-gpcv2.txt | 7 +-
drivers/soc/imx/Kconfig | 6 +-
drivers/soc/imx/Makefile | 2 +-
drivers/soc/imx/gpcv2.c | 208 +++++++++++++++++-
include/dt-bindings/power/imx8mq-power.h | 21 ++
5 files changed, 237 insertions(+), 7 deletions(-)
create mode 100644 include/dt-bindings/power/imx8mq-power.h
diff --git a/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.txt b/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.txt
index 9acce75b29ab..7c947a996df1 100644
--- a/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.txt
+++ b/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.txt
@@ -6,7 +6,9 @@ Control (PGC) for various power domains.
Required properties:
-- compatible: Should be "fsl,imx7d-gpc"
+- compatible: Should be one of:
+ - "fsl,imx7d-gpc"
+ - "fsl,imx8mq-gpc"
- reg: should be register base and length as documented in the
datasheet
@@ -22,7 +24,8 @@ which, in turn, is expected to contain the following:
Required properties:
- reg: Power domain index. Valid values are defined in
- include/dt-bindings/power/imx7-power.h
+ include/dt-bindings/power/imx7-power.h for fsl,imx7d-gpc and
+ include/dt-bindings/power/imx8m-power.h for fsl,imx8mq-gpc
- #power-domain-cells: Should be 0
diff --git a/drivers/soc/imx/Kconfig b/drivers/soc/imx/Kconfig
index a5b86a28f343..2112d18dbb7b 100644
--- a/drivers/soc/imx/Kconfig
+++ b/drivers/soc/imx/Kconfig
@@ -1,8 +1,8 @@
menu "i.MX SoC drivers"
-config IMX7_PM_DOMAINS
- bool "i.MX7 PM domains"
- depends on SOC_IMX7D || (COMPILE_TEST && OF)
+config IMX_GPCV2_PM_DOMAINS
+ bool "i.MX GPCv2 PM domains"
+ depends on SOC_IMX7D || SOC_IMX8MQ || (COMPILE_TEST && OF)
depends on PM
select PM_GENERIC_DOMAINS
default y if SOC_IMX7D
diff --git a/drivers/soc/imx/Makefile b/drivers/soc/imx/Makefile
index aab41a5cc317..506a6f3c2b9b 100644
--- a/drivers/soc/imx/Makefile
+++ b/drivers/soc/imx/Makefile
@@ -1,2 +1,2 @@
obj-$(CONFIG_HAVE_IMX_GPC) += gpc.o
-obj-$(CONFIG_IMX7_PM_DOMAINS) += gpcv2.o
+obj-$(CONFIG_IMX_GPCV2_PM_DOMAINS) += gpcv2.o
diff --git a/drivers/soc/imx/gpcv2.c b/drivers/soc/imx/gpcv2.c
index fe2cf6b61b05..8b4f48a2ca57 100644
--- a/drivers/soc/imx/gpcv2.c
+++ b/drivers/soc/imx/gpcv2.c
@@ -14,24 +14,55 @@
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <dt-bindings/power/imx7-power.h>
+#include <dt-bindings/power/imx8mq-power.h>
#define GPC_LPCR_A_CORE_BSC 0x000
#define GPC_PGC_CPU_MAPPING 0x0ec
+
#define IMX7_USB_HSIC_PHY_A_CORE_DOMAIN BIT(6)
#define IMX7_USB_OTG2_PHY_A_CORE_DOMAIN BIT(5)
#define IMX7_USB_OTG1_PHY_A_CORE_DOMAIN BIT(4)
#define IMX7_PCIE_PHY_A_CORE_DOMAIN BIT(3)
#define IMX7_MIPI_PHY_A_CORE_DOMAIN BIT(2)
+#define IMX8M_PCIE2_A53_DOMAIN BIT(15)
+#define IMX8M_MIPI_CSI2_A53_DOMAIN BIT(14)
+#define IMX8M_MIPI_CSI1_A53_DOMAIN BIT(13)
+#define IMX8M_DISP_A53_DOMAIN BIT(12)
+#define IMX8M_HDMI_A53_DOMAIN BIT(11)
+#define IMX8M_VPU_A53_DOMAIN BIT(10)
+#define IMX8M_GPU_A53_DOMAIN BIT(9)
+#define IMX8M_DDR2_A53_DOMAIN BIT(8)
+#define IMX8M_DDR1_A53_DOMAIN BIT(7)
+#define IMX8M_OTG2_A53_DOMAIN BIT(5)
+#define IMX8M_OTG1_A53_DOMAIN BIT(4)
+#define IMX8M_PCIE1_A53_DOMAIN BIT(3)
+#define IMX8M_MIPI_A53_DOMAIN BIT(2)
+
#define GPC_PU_PGC_SW_PUP_REQ 0x0f8
#define GPC_PU_PGC_SW_PDN_REQ 0x104
+
#define IMX7_USB_HSIC_PHY_SW_Pxx_REQ BIT(4)
#define IMX7_USB_OTG2_PHY_SW_Pxx_REQ BIT(3)
#define IMX7_USB_OTG1_PHY_SW_Pxx_REQ BIT(2)
#define IMX7_PCIE_PHY_SW_Pxx_REQ BIT(1)
#define IMX7_MIPI_PHY_SW_Pxx_REQ BIT(0)
+#define IMX8M_PCIE2_SW_Pxx_REQ BIT(13)
+#define IMX8M_MIPI_CSI2_SW_Pxx_REQ BIT(12)
+#define IMX8M_MIPI_CSI1_SW_Pxx_REQ BIT(11)
+#define IMX8M_DISP_SW_Pxx_REQ BIT(10)
+#define IMX8M_HDMI_SW_Pxx_REQ BIT(9)
+#define IMX8M_VPU_SW_Pxx_REQ BIT(8)
+#define IMX8M_GPU_SW_Pxx_REQ BIT(7)
+#define IMX8M_DDR2_SW_Pxx_REQ BIT(6)
+#define IMX8M_DDR1_SW_Pxx_REQ BIT(5)
+#define IMX8M_OTG2_SW_Pxx_REQ BIT(3)
+#define IMX8M_OTG1_SW_Pxx_REQ BIT(2)
+#define IMX8M_PCIE1_SW_Pxx_REQ BIT(1)
+#define IMX8M_MIPI_SW_Pxx_REQ BIT(0)
+
#define GPC_M4_PU_PDN_FLG 0x1bc
/*
@@ -43,6 +74,19 @@
#define IMX7_PGC_MIPI 16
#define IMX7_PGC_PCIE 17
#define IMX7_PGC_USB_HSIC 20
+
+#define IMX8M_PGC_MIPI 16
+#define IMX8M_PGC_PCIE1 17
+#define IMX8M_PGC_OTG1 18
+#define IMX8M_PGC_OTG2 19
+#define IMX8M_PGC_DDR1 21
+#define IMX8M_PGC_GPU 23
+#define IMX8M_PGC_VPU 24
+#define IMX8M_PGC_DISP 26
+#define IMX8M_PGC_MIPI_CSI1 27
+#define IMX8M_PGC_MIPI_CSI2 28
+#define IMX8M_PGC_PCIE2 29
+
#define GPC_PGC_CTRL(n) (0x800 + (n) * 0x40)
#define GPC_PGC_SR(n) (GPC_PGC_CTRL(n) + 0xc)
@@ -221,6 +265,167 @@ static const struct imx_pgc_domain_data imx7_pgc_domain_data = {
.reg_access_table = &imx7_access_table,
};
+static const struct imx_pgc_domain imx8m_pgc_domains[] = {
+ [IMX8M_POWER_DOMAIN_MIPI] = {
+ .genpd = {
+ .name = "mipi",
+ },
+ .bits = {
+ .pxx = IMX8M_MIPI_SW_Pxx_REQ,
+ .map = IMX8M_MIPI_A53_DOMAIN,
+ },
+ .pgc = IMX8M_PGC_MIPI,
+ },
+
+ [IMX8M_POWER_DOMAIN_PCIE1] = {
+ .genpd = {
+ .name = "pcie1",
+ },
+ .bits = {
+ .pxx = IMX8M_PCIE1_SW_Pxx_REQ,
+ .map = IMX8M_PCIE1_A53_DOMAIN,
+ },
+ .pgc = IMX8M_PGC_PCIE1,
+ },
+
+ [IMX8M_POWER_DOMAIN_USB_OTG1] = {
+ .genpd = {
+ .name = "usb-otg1",
+ },
+ .bits = {
+ .pxx = IMX8M_OTG1_SW_Pxx_REQ,
+ .map = IMX8M_OTG1_A53_DOMAIN,
+ },
+ .pgc = IMX8M_PGC_OTG1,
+ },
+
+ [IMX8M_POWER_DOMAIN_USB_OTG2] = {
+ .genpd = {
+ .name = "usb-otg2",
+ },
+ .bits = {
+ .pxx = IMX8M_OTG2_SW_Pxx_REQ,
+ .map = IMX8M_OTG2_A53_DOMAIN,
+ },
+ .pgc = IMX8M_PGC_OTG2,
+ },
+
+ [IMX8M_POWER_DOMAIN_DDR1] = {
+ .genpd = {
+ .name = "ddr1",
+ },
+ .bits = {
+ .pxx = IMX8M_DDR1_SW_Pxx_REQ,
+ .map = IMX8M_DDR2_A53_DOMAIN,
+ },
+ .pgc = IMX8M_PGC_DDR1,
+ },
+
+ [IMX8M_POWER_DOMAIN_GPU] = {
+ .genpd = {
+ .name = "gpu",
+ },
+ .bits = {
+ .pxx = IMX8M_GPU_SW_Pxx_REQ,
+ .map = IMX8M_GPU_A53_DOMAIN,
+ },
+ .pgc = IMX8M_PGC_GPU,
+ },
+
+ [IMX8M_POWER_DOMAIN_VPU] = {
+ .genpd = {
+ .name = "vpu",
+ },
+ .bits = {
+ .pxx = IMX8M_VPU_SW_Pxx_REQ,
+ .map = IMX8M_VPU_A53_DOMAIN,
+ },
+ .pgc = IMX8M_PGC_VPU,
+ },
+
+ [IMX8M_POWER_DOMAIN_DISP] = {
+ .genpd = {
+ .name = "disp",
+ },
+ .bits = {
+ .pxx = IMX8M_DISP_SW_Pxx_REQ,
+ .map = IMX8M_DISP_A53_DOMAIN,
+ },
+ .pgc = IMX8M_PGC_DISP,
+ },
+
+ [IMX8M_POWER_DOMAIN_MIPI_CSI1] = {
+ .genpd = {
+ .name = "mipi-csi1",
+ },
+ .bits = {
+ .pxx = IMX8M_MIPI_CSI1_SW_Pxx_REQ,
+ .map = IMX8M_MIPI_CSI1_A53_DOMAIN,
+ },
+ .pgc = IMX8M_PGC_MIPI_CSI1,
+ },
+
+ [IMX8M_POWER_DOMAIN_MIPI_CSI2] = {
+ .genpd = {
+ .name = "mipi-csi2",
+ },
+ .bits = {
+ .pxx = IMX8M_MIPI_CSI2_SW_Pxx_REQ,
+ .map = IMX8M_MIPI_CSI2_A53_DOMAIN,
+ },
+ .pgc = IMX8M_PGC_MIPI_CSI2,
+ },
+
+ [IMX8M_POWER_DOMAIN_PCIE2] = {
+ .genpd = {
+ .name = "pcie2",
+ },
+ .bits = {
+ .pxx = IMX8M_PCIE2_SW_Pxx_REQ,
+ .map = IMX8M_PCIE2_A53_DOMAIN,
+ },
+ .pgc = IMX8M_PGC_PCIE2,
+ },
+};
+
+static const struct regmap_range imx8m_yes_ranges[] = {
+ regmap_reg_range(GPC_LPCR_A_CORE_BSC,
+ GPC_M4_PU_PDN_FLG),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_MIPI),
+ GPC_PGC_SR(IMX8M_PGC_MIPI)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_PCIE1),
+ GPC_PGC_SR(IMX8M_PGC_PCIE1)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_OTG1),
+ GPC_PGC_SR(IMX8M_PGC_OTG1)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_OTG2),
+ GPC_PGC_SR(IMX8M_PGC_OTG2)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_DDR1),
+ GPC_PGC_SR(IMX8M_PGC_DDR1)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_GPU),
+ GPC_PGC_SR(IMX8M_PGC_GPU)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_VPU),
+ GPC_PGC_SR(IMX8M_PGC_VPU)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_DISP),
+ GPC_PGC_SR(IMX8M_PGC_DISP)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_MIPI_CSI1),
+ GPC_PGC_SR(IMX8M_PGC_MIPI_CSI1)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_MIPI_CSI2),
+ GPC_PGC_SR(IMX8M_PGC_MIPI_CSI2)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_PCIE2),
+ GPC_PGC_SR(IMX8M_PGC_PCIE2)),
+};
+
+static const struct regmap_access_table imx8m_access_table = {
+ .yes_ranges = imx8m_yes_ranges,
+ .n_yes_ranges = ARRAY_SIZE(imx8m_yes_ranges),
+};
+
+static const struct imx_pgc_domain_data imx8m_pgc_domain_data = {
+ .domains = imx8m_pgc_domains,
+ .domains_num = ARRAY_SIZE(imx8m_pgc_domains),
+ .reg_access_table = &imx8m_access_table,
+};
+
static int imx_pgc_domain_probe(struct platform_device *pdev)
{
struct imx_pgc_domain *domain = pdev->dev.platform_data;
@@ -235,7 +440,7 @@ static int imx_pgc_domain_probe(struct platform_device *pdev)
dev_err(domain->dev, "Failed to get domain's regulator\n");
return PTR_ERR(domain->regulator);
}
- } else {
+ } else if (domain->voltage) {
regulator_set_voltage(domain->regulator,
domain->voltage, domain->voltage);
}
@@ -376,6 +581,7 @@ static int imx_gpcv2_probe(struct platform_device *pdev)
static const struct of_device_id imx_gpcv2_dt_ids[] = {
{ .compatible = "fsl,imx7d-gpc", .data = &imx7_pgc_domain_data, },
+ { .compatible = "fsl,imx8mq-gpc", .data = &imx8m_pgc_domain_data, },
{ }
};
diff --git a/include/dt-bindings/power/imx8mq-power.h b/include/dt-bindings/power/imx8mq-power.h
new file mode 100644
index 000000000000..8a513bd9166e
--- /dev/null
+++ b/include/dt-bindings/power/imx8mq-power.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
+/*
+ * Copyright (C) 2018 Pengutronix, Lucas Stach <kernel@xxxxxxxxxxxxxx>
+ */
+
+#ifndef __DT_BINDINGS_IMX8MQ_POWER_H__
+#define __DT_BINDINGS_IMX8MQ_POWER_H__
+
+#define IMX8M_POWER_DOMAIN_MIPI 0
+#define IMX8M_POWER_DOMAIN_PCIE1 1
+#define IMX8M_POWER_DOMAIN_USB_OTG1 2
+#define IMX8M_POWER_DOMAIN_USB_OTG2 3
+#define IMX8M_POWER_DOMAIN_DDR1 4
+#define IMX8M_POWER_DOMAIN_GPU 5
+#define IMX8M_POWER_DOMAIN_VPU 6
+#define IMX8M_POWER_DOMAIN_DISP 7
+#define IMX8M_POWER_DOMAIN_MIPI_CSI1 8
+#define IMX8M_POWER_DOMAIN_MIPI_CSI2 9
+#define IMX8M_POWER_DOMAIN_PCIE2 10
+
+#endif
--
2.19.1
