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soc: amlogic: updates for v5.4 (round 2)

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- add power domain controller
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Merge tag 'amlogic-drivers-2.1' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into v5.4/dt64-2

soc: amlogic: updates for v5.4 (round 2)
- add power domain controller
This commit is contained in:
Kevin Hilman 2019-08-29 16:11:30 -07:00
commit 77657b805b
9 changed files with 782 additions and 2 deletions
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93
Documentation/devicetree/bindings/power/amlogic,meson-ee-pwrc.yaml Normal file
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@ -0,0 +1,93 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
# Copyright 2019 BayLibre, SAS
%YAML 1.2
---
$id: "http://devicetree.org/schemas/power/amlogic,meson-ee-pwrc.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic Meson Everything-Else Power Domains
maintainers:
- Neil Armstrong <narmstrong@baylibre.com>
description: |+
The Everything-Else Power Domains node should be the child of a syscon
node with the required property:
- compatible: Should be the following:
"amlogic,meson-gx-hhi-sysctrl", "simple-mfd", "syscon"
Refer to the the bindings described in
Documentation/devicetree/bindings/mfd/syscon.txt
properties:
compatible:
enum:
- amlogic,meson-g12a-pwrc
- amlogic,meson-sm1-pwrc
clocks:
minItems: 2
clock-names:
items:
- const: vpu
- const: vapb
resets:
minItems: 11
reset-names:
items:
- const: viu
- const: venc
- const: vcbus
- const: bt656
- const: rdma
- const: venci
- const: vencp
- const: vdac
- const: vdi6
- const: vencl
- const: vid_lock
"#power-domain-cells":
const: 1
amlogic,ao-sysctrl:
description: phandle to the AO sysctrl node
allOf:
- $ref: /schemas/types.yaml#/definitions/phandle
required:
- compatible
- clocks
- clock-names
- resets
- reset-names
- "#power-domain-cells"
- amlogic,ao-sysctrl
examples:
- |
pwrc: power-controller {
compatible = "amlogic,meson-sm1-pwrc";
#power-domain-cells = <1>;
amlogic,ao-sysctrl = <&rti>;
resets = <&reset_viu>,
<&reset_venc>,
<&reset_vcbus>,
<&reset_bt656>,
<&reset_rdma>,
<&reset_venci>,
<&reset_vencp>,
<&reset_vdac>,
<&reset_vdi6>,
<&reset_vencl>,
<&reset_vid_lock>;
reset-names = "viu", "venc", "vcbus", "bt656",
"rdma", "venci", "vencp", "vdac",
"vdi6", "vencl", "vid_lock";
clocks = <&clk_vpu>, <&clk_vapb>;
clock-names = "vpu", "vapb";
};

1
Documentation/devicetree/bindings/soc/amlogic/clk-measure.txt
View File

@ -11,6 +11,7 @@ Required properties:
"amlogic,meson8b-clk-measure" for Meson8b SoCs
"amlogic,meson-axg-clk-measure" for AXG SoCs
"amlogic,meson-g12a-clk-measure" for G12a SoCs
"amlogic,meson-sm1-clk-measure" for SM1 SoCs
- reg: base address and size of the Clock Measurer register space.
Example:

11
drivers/soc/amlogic/Kconfig
View File

@ -37,6 +37,17 @@ config MESON_GX_PM_DOMAINS
Say yes to expose Amlogic Meson GX Power Domains as
Generic Power Domains.
config MESON_EE_PM_DOMAINS
bool "Amlogic Meson Everything-Else Power Domains driver"
depends on ARCH_MESON || COMPILE_TEST
depends on PM && OF
default ARCH_MESON
select PM_GENERIC_DOMAINS
select PM_GENERIC_DOMAINS_OF
help
Say yes to expose Amlogic Meson Everything-Else Power Domains as
Generic Power Domains.
config MESON_MX_SOCINFO
bool "Amlogic Meson MX SoC Information driver"
depends on ARCH_MESON || COMPILE_TEST

1
drivers/soc/amlogic/Makefile
View File

@ -4,3 +4,4 @@ obj-$(CONFIG_MESON_CLK_MEASURE) += meson-clk-measure.o
obj-$(CONFIG_MESON_GX_SOCINFO) += meson-gx-socinfo.o
obj-$(CONFIG_MESON_GX_PM_DOMAINS) += meson-gx-pwrc-vpu.o
obj-$(CONFIG_MESON_MX_SOCINFO) += meson-mx-socinfo.o
obj-$(CONFIG_MESON_EE_PM_DOMAINS) += meson-ee-pwrc.o

148
drivers/soc/amlogic/meson-clk-measure.c
View File

@ -11,6 +11,8 @@
#include <linux/debugfs.h>
#include <linux/regmap.h>
static DEFINE_MUTEX(measure_lock);
#define MSR_CLK_DUTY 0x0
#define MSR_CLK_REG0 0x4
#define MSR_CLK_REG1 0x8
@ -322,6 +324,8 @@ static struct meson_msr_id clk_msr_g12a[CLK_MSR_MAX] = {
CLK_MSR_ID(84, "co_tx"),
CLK_MSR_ID(89, "hdmi_todig"),
CLK_MSR_ID(90, "hdmitx_sys"),
CLK_MSR_ID(91, "sys_cpub_div16"),
CLK_MSR_ID(92, "sys_pll_cpub_div16"),
CLK_MSR_ID(94, "eth_phy_rx"),
CLK_MSR_ID(95, "eth_phy_pll"),
CLK_MSR_ID(96, "vpu_b"),
@ -353,6 +357,136 @@ static struct meson_msr_id clk_msr_g12a[CLK_MSR_MAX] = {
CLK_MSR_ID(122, "audio_pdm_dclk"),
};
static struct meson_msr_id clk_msr_sm1[CLK_MSR_MAX] = {
CLK_MSR_ID(0, "ring_osc_out_ee_0"),
CLK_MSR_ID(1, "ring_osc_out_ee_1"),
CLK_MSR_ID(2, "ring_osc_out_ee_2"),
CLK_MSR_ID(3, "ring_osc_out_ee_3"),
CLK_MSR_ID(4, "gp0_pll"),
CLK_MSR_ID(5, "gp1_pll"),
CLK_MSR_ID(6, "enci"),
CLK_MSR_ID(7, "clk81"),
CLK_MSR_ID(8, "encp"),
CLK_MSR_ID(9, "encl"),
CLK_MSR_ID(10, "vdac"),
CLK_MSR_ID(11, "eth_tx"),
CLK_MSR_ID(12, "hifi_pll"),
CLK_MSR_ID(13, "mod_tcon"),
CLK_MSR_ID(14, "fec_0"),
CLK_MSR_ID(15, "fec_1"),
CLK_MSR_ID(16, "fec_2"),
CLK_MSR_ID(17, "sys_pll_div16"),
CLK_MSR_ID(18, "sys_cpu_div16"),
CLK_MSR_ID(19, "lcd_an_ph2"),
CLK_MSR_ID(20, "rtc_osc_out"),
CLK_MSR_ID(21, "lcd_an_ph3"),
CLK_MSR_ID(22, "eth_phy_ref"),
CLK_MSR_ID(23, "mpll_50m"),
CLK_MSR_ID(24, "eth_125m"),
CLK_MSR_ID(25, "eth_rmii"),
CLK_MSR_ID(26, "sc_int"),
CLK_MSR_ID(27, "in_mac"),
CLK_MSR_ID(28, "sar_adc"),
CLK_MSR_ID(29, "pcie_inp"),
CLK_MSR_ID(30, "pcie_inn"),
CLK_MSR_ID(31, "mpll_test_out"),
CLK_MSR_ID(32, "vdec"),
CLK_MSR_ID(34, "eth_mpll_50m"),
CLK_MSR_ID(35, "mali"),
CLK_MSR_ID(36, "hdmi_tx_pixel"),
CLK_MSR_ID(37, "cdac"),
CLK_MSR_ID(38, "vdin_meas"),
CLK_MSR_ID(39, "bt656"),
CLK_MSR_ID(40, "arm_ring_osc_out_4"),
CLK_MSR_ID(41, "eth_rx_or_rmii"),
CLK_MSR_ID(42, "mp0_out"),
CLK_MSR_ID(43, "fclk_div5"),
CLK_MSR_ID(44, "pwm_b"),
CLK_MSR_ID(45, "pwm_a"),
CLK_MSR_ID(46, "vpu"),
CLK_MSR_ID(47, "ddr_dpll_pt"),
CLK_MSR_ID(48, "mp1_out"),
CLK_MSR_ID(49, "mp2_out"),
CLK_MSR_ID(50, "mp3_out"),
CLK_MSR_ID(51, "sd_emmc_c"),
CLK_MSR_ID(52, "sd_emmc_b"),
CLK_MSR_ID(53, "sd_emmc_a"),
CLK_MSR_ID(54, "vpu_clkc"),
CLK_MSR_ID(55, "vid_pll_div_out"),
CLK_MSR_ID(56, "wave420l_a"),
CLK_MSR_ID(57, "wave420l_c"),
CLK_MSR_ID(58, "wave420l_b"),
CLK_MSR_ID(59, "hcodec"),
CLK_MSR_ID(60, "arm_ring_osc_out_5"),
CLK_MSR_ID(61, "gpio_msr"),
CLK_MSR_ID(62, "hevcb"),
CLK_MSR_ID(63, "dsi_meas"),
CLK_MSR_ID(64, "spicc_1"),
CLK_MSR_ID(65, "spicc_0"),
CLK_MSR_ID(66, "vid_lock"),
CLK_MSR_ID(67, "dsi_phy"),
CLK_MSR_ID(68, "hdcp22_esm"),
CLK_MSR_ID(69, "hdcp22_skp"),
CLK_MSR_ID(70, "pwm_f"),
CLK_MSR_ID(71, "pwm_e"),
CLK_MSR_ID(72, "pwm_d"),
CLK_MSR_ID(73, "pwm_c"),
CLK_MSR_ID(74, "arm_ring_osc_out_6"),
CLK_MSR_ID(75, "hevcf"),
CLK_MSR_ID(76, "arm_ring_osc_out_7"),
CLK_MSR_ID(77, "rng_ring_osc_0"),
CLK_MSR_ID(78, "rng_ring_osc_1"),
CLK_MSR_ID(79, "rng_ring_osc_2"),
CLK_MSR_ID(80, "rng_ring_osc_3"),
CLK_MSR_ID(81, "vapb"),
CLK_MSR_ID(82, "ge2d"),
CLK_MSR_ID(83, "co_rx"),
CLK_MSR_ID(84, "co_tx"),
CLK_MSR_ID(85, "arm_ring_osc_out_8"),
CLK_MSR_ID(86, "arm_ring_osc_out_9"),
CLK_MSR_ID(87, "mipi_dsi_phy"),
CLK_MSR_ID(88, "cis2_adapt"),
CLK_MSR_ID(89, "hdmi_todig"),
CLK_MSR_ID(90, "hdmitx_sys"),
CLK_MSR_ID(91, "nna_core"),
CLK_MSR_ID(92, "nna_axi"),
CLK_MSR_ID(93, "vad"),
CLK_MSR_ID(94, "eth_phy_rx"),
CLK_MSR_ID(95, "eth_phy_pll"),
CLK_MSR_ID(96, "vpu_b"),
CLK_MSR_ID(97, "cpu_b_tmp"),
CLK_MSR_ID(98, "ts"),
CLK_MSR_ID(99, "arm_ring_osc_out_10"),
CLK_MSR_ID(100, "arm_ring_osc_out_11"),
CLK_MSR_ID(101, "arm_ring_osc_out_12"),
CLK_MSR_ID(102, "arm_ring_osc_out_13"),
CLK_MSR_ID(103, "arm_ring_osc_out_14"),
CLK_MSR_ID(104, "arm_ring_osc_out_15"),
CLK_MSR_ID(105, "arm_ring_osc_out_16"),
CLK_MSR_ID(106, "ephy_test"),
CLK_MSR_ID(107, "au_dac_g128x"),
CLK_MSR_ID(108, "audio_locker_out"),
CLK_MSR_ID(109, "audio_locker_in"),
CLK_MSR_ID(110, "audio_tdmout_c_sclk"),
CLK_MSR_ID(111, "audio_tdmout_b_sclk"),
CLK_MSR_ID(112, "audio_tdmout_a_sclk"),
CLK_MSR_ID(113, "audio_tdmin_lb_sclk"),
CLK_MSR_ID(114, "audio_tdmin_c_sclk"),
CLK_MSR_ID(115, "audio_tdmin_b_sclk"),
CLK_MSR_ID(116, "audio_tdmin_a_sclk"),
CLK_MSR_ID(117, "audio_resample"),
CLK_MSR_ID(118, "audio_pdm_sys"),
CLK_MSR_ID(119, "audio_spdifout_b"),
CLK_MSR_ID(120, "audio_spdifout"),
CLK_MSR_ID(121, "audio_spdifin"),
CLK_MSR_ID(122, "audio_pdm_dclk"),
CLK_MSR_ID(123, "audio_resampled"),
CLK_MSR_ID(124, "earcrx_pll"),
CLK_MSR_ID(125, "earcrx_pll_test"),
CLK_MSR_ID(126, "csi_phy0"),
CLK_MSR_ID(127, "csi2_data"),
};
static int meson_measure_id(struct meson_msr_id *clk_msr_id,
unsigned int duration)
{
@ -360,6 +494,10 @@ static int meson_measure_id(struct meson_msr_id *clk_msr_id,
unsigned int val;
int ret;
ret = mutex_lock_interruptible(&measure_lock);
if (ret)
return ret;
regmap_write(priv->regmap, MSR_CLK_REG0, 0);
/* Set measurement duration */
@ -377,8 +515,10 @@ static int meson_measure_id(struct meson_msr_id *clk_msr_id,
ret = regmap_read_poll_timeout(priv->regmap, MSR_CLK_REG0,
val, !(val & MSR_BUSY), 10, 10000);
if (ret)
if (ret) {
mutex_unlock(&measure_lock);
return ret;
}
/* Disable */
regmap_update_bits(priv->regmap, MSR_CLK_REG0, MSR_ENABLE, 0);
@ -386,6 +526,8 @@ static int meson_measure_id(struct meson_msr_id *clk_msr_id,
/* Get the value in multiple of gate time counts */
regmap_read(priv->regmap, MSR_CLK_REG2, &val);
mutex_unlock(&measure_lock);
if (val >= MSR_VAL_MASK)
return -EINVAL;
@ -533,6 +675,10 @@ static const struct of_device_id meson_msr_match_table[] = {
.compatible = "amlogic,meson-g12a-clk-measure",
.data = (void *)clk_msr_g12a,
},
{
.compatible = "amlogic,meson-sm1-clk-measure",
.data = (void *)clk_msr_sm1,
},
{ /* sentinel */ }
};

492
drivers/soc/amlogic/meson-ee-pwrc.c Normal file
View File

@ -0,0 +1,492 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2019 BayLibre, SAS
* Author: Neil Armstrong <narmstrong@baylibre.com>
*/
#include <linux/of_address.h>
#include <linux/platform_device.h>
#include <linux/pm_domain.h>
#include <linux/bitfield.h>
#include <linux/regmap.h>
#include <linux/mfd/syscon.h>
#include <linux/of_device.h>
#include <linux/reset-controller.h>
#include <linux/reset.h>
#include <linux/clk.h>
#include <dt-bindings/power/meson-g12a-power.h>
#include <dt-bindings/power/meson-sm1-power.h>
/* AO Offsets */
#define AO_RTI_GEN_PWR_SLEEP0 (0x3a << 2)
#define AO_RTI_GEN_PWR_ISO0 (0x3b << 2)
/* HHI Offsets */
#define HHI_MEM_PD_REG0 (0x40 << 2)
#define HHI_VPU_MEM_PD_REG0 (0x41 << 2)
#define HHI_VPU_MEM_PD_REG1 (0x42 << 2)
#define HHI_VPU_MEM_PD_REG3 (0x43 << 2)
#define HHI_VPU_MEM_PD_REG4 (0x44 << 2)
#define HHI_AUDIO_MEM_PD_REG0 (0x45 << 2)
#define HHI_NANOQ_MEM_PD_REG0 (0x46 << 2)
#define HHI_NANOQ_MEM_PD_REG1 (0x47 << 2)
#define HHI_VPU_MEM_PD_REG2 (0x4d << 2)
struct meson_ee_pwrc;
struct meson_ee_pwrc_domain;
struct meson_ee_pwrc_mem_domain {
unsigned int reg;
unsigned int mask;
};
struct meson_ee_pwrc_top_domain {
unsigned int sleep_reg;
unsigned int sleep_mask;
unsigned int iso_reg;
unsigned int iso_mask;
};
struct meson_ee_pwrc_domain_desc {
char *name;
unsigned int reset_names_count;
unsigned int clk_names_count;
struct meson_ee_pwrc_top_domain *top_pd;
unsigned int mem_pd_count;
struct meson_ee_pwrc_mem_domain *mem_pd;
bool (*get_power)(struct meson_ee_pwrc_domain *pwrc_domain);
};
struct meson_ee_pwrc_domain_data {
unsigned int count;
struct meson_ee_pwrc_domain_desc *domains;
};
/* TOP Power Domains */
static struct meson_ee_pwrc_top_domain g12a_pwrc_vpu = {
.sleep_reg = AO_RTI_GEN_PWR_SLEEP0,
.sleep_mask = BIT(8),
.iso_reg = AO_RTI_GEN_PWR_SLEEP0,
.iso_mask = BIT(9),
};
#define SM1_EE_PD(__bit) \
{ \
.sleep_reg = AO_RTI_GEN_PWR_SLEEP0, \
.sleep_mask = BIT(__bit), \
.iso_reg = AO_RTI_GEN_PWR_ISO0, \
.iso_mask = BIT(__bit), \
}
static struct meson_ee_pwrc_top_domain sm1_pwrc_vpu = SM1_EE_PD(8);
static struct meson_ee_pwrc_top_domain sm1_pwrc_nna = SM1_EE_PD(16);
static struct meson_ee_pwrc_top_domain sm1_pwrc_usb = SM1_EE_PD(17);
static struct meson_ee_pwrc_top_domain sm1_pwrc_pci = SM1_EE_PD(18);
static struct meson_ee_pwrc_top_domain sm1_pwrc_ge2d = SM1_EE_PD(19);
/* Memory PD Domains */
#define VPU_MEMPD(__reg) \
{ __reg, GENMASK(1, 0) }, \
{ __reg, GENMASK(3, 2) }, \
{ __reg, GENMASK(5, 4) }, \
{ __reg, GENMASK(7, 6) }, \
{ __reg, GENMASK(9, 8) }, \
{ __reg, GENMASK(11, 10) }, \
{ __reg, GENMASK(13, 12) }, \
{ __reg, GENMASK(15, 14) }, \
{ __reg, GENMASK(17, 16) }, \
{ __reg, GENMASK(19, 18) }, \
{ __reg, GENMASK(21, 20) }, \
{ __reg, GENMASK(23, 22) }, \
{ __reg, GENMASK(25, 24) }, \
{ __reg, GENMASK(27, 26) }, \
{ __reg, GENMASK(29, 28) }, \
{ __reg, GENMASK(31, 30) }
#define VPU_HHI_MEMPD(__reg) \
{ __reg, BIT(8) }, \
{ __reg, BIT(9) }, \
{ __reg, BIT(10) }, \
{ __reg, BIT(11) }, \
{ __reg, BIT(12) }, \
{ __reg, BIT(13) }, \
{ __reg, BIT(14) }, \
{ __reg, BIT(15) }
static struct meson_ee_pwrc_mem_domain g12a_pwrc_mem_vpu[] = {
VPU_MEMPD(HHI_VPU_MEM_PD_REG0),
VPU_MEMPD(HHI_VPU_MEM_PD_REG1),
VPU_MEMPD(HHI_VPU_MEM_PD_REG2),
VPU_HHI_MEMPD(HHI_MEM_PD_REG0),
};
static struct meson_ee_pwrc_mem_domain g12a_pwrc_mem_eth[] = {
{ HHI_MEM_PD_REG0, GENMASK(3, 2) },
};
static struct meson_ee_pwrc_mem_domain sm1_pwrc_mem_vpu[] = {
VPU_MEMPD(HHI_VPU_MEM_PD_REG0),
VPU_MEMPD(HHI_VPU_MEM_PD_REG1),
VPU_MEMPD(HHI_VPU_MEM_PD_REG2),
VPU_MEMPD(HHI_VPU_MEM_PD_REG3),
{ HHI_VPU_MEM_PD_REG4, GENMASK(1, 0) },
{ HHI_VPU_MEM_PD_REG4, GENMASK(3, 2) },
{ HHI_VPU_MEM_PD_REG4, GENMASK(5, 4) },
{ HHI_VPU_MEM_PD_REG4, GENMASK(7, 6) },
VPU_HHI_MEMPD(HHI_MEM_PD_REG0),
};
static struct meson_ee_pwrc_mem_domain sm1_pwrc_mem_nna[] = {
{ HHI_NANOQ_MEM_PD_REG0, 0xff },
{ HHI_NANOQ_MEM_PD_REG1, 0xff },
};
static struct meson_ee_pwrc_mem_domain sm1_pwrc_mem_usb[] = {
{ HHI_MEM_PD_REG0, GENMASK(31, 30) },
};
static struct meson_ee_pwrc_mem_domain sm1_pwrc_mem_pcie[] = {
{ HHI_MEM_PD_REG0, GENMASK(29, 26) },
};
static struct meson_ee_pwrc_mem_domain sm1_pwrc_mem_ge2d[] = {
{ HHI_MEM_PD_REG0, GENMASK(25, 18) },
};
static struct meson_ee_pwrc_mem_domain sm1_pwrc_mem_audio[] = {
{ HHI_MEM_PD_REG0, GENMASK(5, 4) },
{ HHI_AUDIO_MEM_PD_REG0, GENMASK(1, 0) },
{ HHI_AUDIO_MEM_PD_REG0, GENMASK(3, 2) },
{ HHI_AUDIO_MEM_PD_REG0, GENMASK(5, 4) },
{ HHI_AUDIO_MEM_PD_REG0, GENMASK(7, 6) },
{ HHI_AUDIO_MEM_PD_REG0, GENMASK(13, 12) },
{ HHI_AUDIO_MEM_PD_REG0, GENMASK(15, 14) },
{ HHI_AUDIO_MEM_PD_REG0, GENMASK(17, 16) },
{ HHI_AUDIO_MEM_PD_REG0, GENMASK(19, 18) },
{ HHI_AUDIO_MEM_PD_REG0, GENMASK(21, 20) },
{ HHI_AUDIO_MEM_PD_REG0, GENMASK(23, 22) },
{ HHI_AUDIO_MEM_PD_REG0, GENMASK(25, 24) },
{ HHI_AUDIO_MEM_PD_REG0, GENMASK(27, 26) },
};
#define VPU_PD(__name, __top_pd, __mem, __get_power, __resets, __clks) \
{ \
.name = __name, \
.reset_names_count = __resets, \
.clk_names_count = __clks, \
.top_pd = __top_pd, \
.mem_pd_count = ARRAY_SIZE(__mem), \
.mem_pd = __mem, \
.get_power = __get_power, \
}
#define TOP_PD(__name, __top_pd, __mem, __get_power) \
{ \
.name = __name, \
.top_pd = __top_pd, \
.mem_pd_count = ARRAY_SIZE(__mem), \
.mem_pd = __mem, \
.get_power = __get_power, \
}
#define MEM_PD(__name, __mem) \
TOP_PD(__name, NULL, __mem, NULL)
static bool pwrc_ee_get_power(struct meson_ee_pwrc_domain *pwrc_domain);
static struct meson_ee_pwrc_domain_desc g12a_pwrc_domains[] = {
[PWRC_G12A_VPU_ID] = VPU_PD("VPU", &g12a_pwrc_vpu, g12a_pwrc_mem_vpu,
pwrc_ee_get_power, 11, 2),
[PWRC_G12A_ETH_ID] = MEM_PD("ETH", g12a_pwrc_mem_eth),
};
static struct meson_ee_pwrc_domain_desc sm1_pwrc_domains[] = {
[PWRC_SM1_VPU_ID] = VPU_PD("VPU", &sm1_pwrc_vpu, sm1_pwrc_mem_vpu,
pwrc_ee_get_power, 11, 2),
[PWRC_SM1_NNA_ID] = TOP_PD("NNA", &sm1_pwrc_nna, sm1_pwrc_mem_nna,
pwrc_ee_get_power),
[PWRC_SM1_USB_ID] = TOP_PD("USB", &sm1_pwrc_usb, sm1_pwrc_mem_usb,
pwrc_ee_get_power),
[PWRC_SM1_PCIE_ID] = TOP_PD("PCI", &sm1_pwrc_pci, sm1_pwrc_mem_pcie,
pwrc_ee_get_power),
[PWRC_SM1_GE2D_ID] = TOP_PD("GE2D", &sm1_pwrc_ge2d, sm1_pwrc_mem_ge2d,
pwrc_ee_get_power),
[PWRC_SM1_AUDIO_ID] = MEM_PD("AUDIO", sm1_pwrc_mem_audio),
[PWRC_SM1_ETH_ID] = MEM_PD("ETH", g12a_pwrc_mem_eth),
};
struct meson_ee_pwrc_domain {
struct generic_pm_domain base;
bool enabled;
struct meson_ee_pwrc *pwrc;
struct meson_ee_pwrc_domain_desc desc;
struct clk_bulk_data *clks;
int num_clks;
struct reset_control *rstc;
int num_rstc;
};
struct meson_ee_pwrc {
struct regmap *regmap_ao;
struct regmap *regmap_hhi;
struct meson_ee_pwrc_domain *domains;
struct genpd_onecell_data xlate;
};
static bool pwrc_ee_get_power(struct meson_ee_pwrc_domain *pwrc_domain)
{
u32 reg;
regmap_read(pwrc_domain->pwrc->regmap_ao,
pwrc_domain->desc.top_pd->sleep_reg, &reg);
return (reg & pwrc_domain->desc.top_pd->sleep_mask);
}
static int meson_ee_pwrc_off(struct generic_pm_domain *domain)
{
struct meson_ee_pwrc_domain *pwrc_domain =
container_of(domain, struct meson_ee_pwrc_domain, base);
int i;
if (pwrc_domain->desc.top_pd)
regmap_update_bits(pwrc_domain->pwrc->regmap_ao,
pwrc_domain->desc.top_pd->sleep_reg,
pwrc_domain->desc.top_pd->sleep_mask,
pwrc_domain->desc.top_pd->sleep_mask);
udelay(20);
for (i = 0 ; i < pwrc_domain->desc.mem_pd_count ; ++i)
regmap_update_bits(pwrc_domain->pwrc->regmap_hhi,
pwrc_domain->desc.mem_pd[i].reg,
pwrc_domain->desc.mem_pd[i].mask,
pwrc_domain->desc.mem_pd[i].mask);
udelay(20);
if (pwrc_domain->desc.top_pd)
regmap_update_bits(pwrc_domain->pwrc->regmap_ao,
pwrc_domain->desc.top_pd->iso_reg,
pwrc_domain->desc.top_pd->iso_mask,
pwrc_domain->desc.top_pd->iso_mask);
if (pwrc_domain->num_clks) {
msleep(20);
clk_bulk_disable_unprepare(pwrc_domain->num_clks,
pwrc_domain->clks);
}
return 0;
}
static int meson_ee_pwrc_on(struct generic_pm_domain *domain)
{
struct meson_ee_pwrc_domain *pwrc_domain =
container_of(domain, struct meson_ee_pwrc_domain, base);
int i, ret;
if (pwrc_domain->desc.top_pd)
regmap_update_bits(pwrc_domain->pwrc->regmap_ao,
pwrc_domain->desc.top_pd->sleep_reg,
pwrc_domain->desc.top_pd->sleep_mask, 0);
udelay(20);
for (i = 0 ; i < pwrc_domain->desc.mem_pd_count ; ++i)
regmap_update_bits(pwrc_domain->pwrc->regmap_hhi,
pwrc_domain->desc.mem_pd[i].reg,
pwrc_domain->desc.mem_pd[i].mask, 0);
udelay(20);
ret = reset_control_assert(pwrc_domain->rstc);
if (ret)
return ret;
if (pwrc_domain->desc.top_pd)
regmap_update_bits(pwrc_domain->pwrc->regmap_ao,
pwrc_domain->desc.top_pd->iso_reg,
pwrc_domain->desc.top_pd->iso_mask, 0);
ret = reset_control_deassert(pwrc_domain->rstc);
if (ret)
return ret;
return clk_bulk_prepare_enable(pwrc_domain->num_clks,
pwrc_domain->clks);
}
static int meson_ee_pwrc_init_domain(struct platform_device *pdev,
struct meson_ee_pwrc *pwrc,
struct meson_ee_pwrc_domain *dom)
{
dom->pwrc = pwrc;
dom->num_rstc = dom->desc.reset_names_count;
dom->num_clks = dom->desc.clk_names_count;
if (dom->num_rstc) {
int count = reset_control_get_count(&pdev->dev);
if (count != dom->num_rstc)
dev_warn(&pdev->dev, "Invalid resets count %d for domain %s\n",
count, dom->desc.name);
dom->rstc = devm_reset_control_array_get(&pdev->dev, false,
false);
if (IS_ERR(dom->rstc))
return PTR_ERR(dom->rstc);
}
if (dom->num_clks) {
int ret = devm_clk_bulk_get_all(&pdev->dev, &dom->clks);
if (ret < 0)
return ret;
if (dom->num_clks != ret) {
dev_warn(&pdev->dev, "Invalid clocks count %d for domain %s\n",
ret, dom->desc.name);
dom->num_clks = ret;
}
}
dom->base.name = dom->desc.name;
dom->base.power_on = meson_ee_pwrc_on;
dom->base.power_off = meson_ee_pwrc_off;
/*
* TOFIX: This is a special case for the VPU power domain, which can
* be enabled previously by the bootloader. In this case the VPU
* pipeline may be functional but no driver maybe never attach
* to this power domain, and if the domain is disabled it could
* cause system errors. This is why the pm_domain_always_on_gov
* is used here.
* For the same reason, the clocks should be enabled in case
* we need to power the domain off, otherwise the internal clocks
* prepare/enable counters won't be in sync.
*/
if (dom->num_clks && dom->desc.get_power && !dom->desc.get_power(dom)) {
int ret = clk_bulk_prepare_enable(dom->num_clks, dom->clks);
if (ret)
return ret;
pm_genpd_init(&dom->base, &pm_domain_always_on_gov, false);
} else
pm_genpd_init(&dom->base, NULL,
(dom->desc.get_power ?
dom->desc.get_power(dom) : true));
return 0;
}
static int meson_ee_pwrc_probe(struct platform_device *pdev)
{
const struct meson_ee_pwrc_domain_data *match;
struct regmap *regmap_ao, *regmap_hhi;
struct meson_ee_pwrc *pwrc;
int i, ret;
match = of_device_get_match_data(&pdev->dev);
if (!match) {
dev_err(&pdev->dev, "failed to get match data\n");
return -ENODEV;
}
pwrc = devm_kzalloc(&pdev->dev, sizeof(*pwrc), GFP_KERNEL);
if (!pwrc)
return -ENOMEM;
pwrc->xlate.domains = devm_kcalloc(&pdev->dev, match->count,
sizeof(*pwrc->xlate.domains),
GFP_KERNEL);
if (!pwrc->xlate.domains)
return -ENOMEM;
pwrc->domains = devm_kcalloc(&pdev->dev, match->count,
sizeof(*pwrc->domains), GFP_KERNEL);
if (!pwrc->domains)
return -ENOMEM;
pwrc->xlate.num_domains = match->count;
regmap_hhi = syscon_node_to_regmap(of_get_parent(pdev->dev.of_node));
if (IS_ERR(regmap_hhi)) {
dev_err(&pdev->dev, "failed to get HHI regmap\n");
return PTR_ERR(regmap_hhi);
}
regmap_ao = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
"amlogic,ao-sysctrl");
if (IS_ERR(regmap_ao)) {
dev_err(&pdev->dev, "failed to get AO regmap\n");
return PTR_ERR(regmap_ao);
}
pwrc->regmap_ao = regmap_ao;
pwrc->regmap_hhi = regmap_hhi;
platform_set_drvdata(pdev, pwrc);
for (i = 0 ; i < match->count ; ++i) {
struct meson_ee_pwrc_domain *dom = &pwrc->domains[i];
memcpy(&dom->desc, &match->domains[i], sizeof(dom->desc));
ret = meson_ee_pwrc_init_domain(pdev, pwrc, dom);
if (ret)
return ret;
pwrc->xlate.domains[i] = &dom->base;
}
of_genpd_add_provider_onecell(pdev->dev.of_node, &pwrc->xlate);
return 0;
}
static void meson_ee_pwrc_shutdown(struct platform_device *pdev)
{
struct meson_ee_pwrc *pwrc = platform_get_drvdata(pdev);
int i;
for (i = 0 ; i < pwrc->xlate.num_domains ; ++i) {
struct meson_ee_pwrc_domain *dom = &pwrc->domains[i];
if (dom->desc.get_power && !dom->desc.get_power(dom))
meson_ee_pwrc_off(&dom->base);
}
}
static struct meson_ee_pwrc_domain_data meson_ee_g12a_pwrc_data = {
.count = ARRAY_SIZE(g12a_pwrc_domains),
.domains = g12a_pwrc_domains,
};
static struct meson_ee_pwrc_domain_data meson_ee_sm1_pwrc_data = {
.count = ARRAY_SIZE(sm1_pwrc_domains),
.domains = sm1_pwrc_domains,
};
static const struct of_device_id meson_ee_pwrc_match_table[] = {
{
.compatible = "amlogic,meson-g12a-pwrc",
.data = &meson_ee_g12a_pwrc_data,
},
{
.compatible = "amlogic,meson-sm1-pwrc",
.data = &meson_ee_sm1_pwrc_data,
},
{ /* sentinel */ }
};
static struct platform_driver meson_ee_pwrc_driver = {
.probe = meson_ee_pwrc_probe,
.shutdown = meson_ee_pwrc_shutdown,
.driver = {
.name = "meson_ee_pwrc",
.of_match_table = meson_ee_pwrc_match_table,
},
};
builtin_platform_driver(meson_ee_pwrc_driver);

7
drivers/soc/amlogic/meson-gx-socinfo.c
View File

@ -39,6 +39,7 @@ static const struct meson_gx_soc_id {
{ "TXHD", 0x27 },
{ "G12A", 0x28 },
{ "G12B", 0x29 },
{ "SM1", 0x2b },
};
static const struct meson_gx_package_id {
@ -65,6 +66,8 @@ static const struct meson_gx_package_id {
{ "S905D2", 0x28, 0x10, 0xf0 },
{ "S905X2", 0x28, 0x40, 0xf0 },
{ "S922X", 0x29, 0x40, 0xf0 },
{ "A311D", 0x29, 0x10, 0xf0 },
{ "S905X3", 0x2b, 0x5, 0xf },
};
static inline unsigned int socinfo_to_major(u32 socinfo)
@ -138,8 +141,10 @@ static int __init meson_gx_socinfo_init(void)
}
/* check if chip-id is available */
if (!of_property_read_bool(np, "amlogic,has-chip-id"))
if (!of_property_read_bool(np, "amlogic,has-chip-id")) {
of_node_put(np);
return -ENODEV;
}
/* node should be a syscon */
regmap = syscon_node_to_regmap(np);

13
include/dt-bindings/power/meson-g12a-power.h Normal file
View File

@ -0,0 +1,13 @@
/* SPDX-License-Identifier: (GPL-2.0+ or MIT) */
/*
* Copyright (c) 2019 BayLibre, SAS
* Author: Neil Armstrong <narmstrong@baylibre.com>
*/
#ifndef _DT_BINDINGS_MESON_G12A_POWER_H
#define _DT_BINDINGS_MESON_G12A_POWER_H
#define PWRC_G12A_VPU_ID 0
#define PWRC_G12A_ETH_ID 1
#endif

18
include/dt-bindings/power/meson-sm1-power.h Normal file
View File

@ -0,0 +1,18 @@
/* SPDX-License-Identifier: (GPL-2.0+ or MIT) */
/*
* Copyright (c) 2019 BayLibre, SAS
* Author: Neil Armstrong <narmstrong@baylibre.com>
*/
#ifndef _DT_BINDINGS_MESON_SM1_POWER_H
#define _DT_BINDINGS_MESON_SM1_POWER_H
#define PWRC_SM1_VPU_ID 0
#define PWRC_SM1_NNA_ID 1
#define PWRC_SM1_USB_ID 2
#define PWRC_SM1_PCIE_ID 3
#define PWRC_SM1_GE2D_ID 4
#define PWRC_SM1_AUDIO_ID 5
#define PWRC_SM1_ETH_ID 6
#endif