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/linux/drivers/mailbox/
H A Dmailbox-xgene-slimpro.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * APM X-Gene SLIMpro MailBox Driver
18 #define MBOX_CON_NAME "slimpro-mbox"
35 * X-Gene SlimPRO mailbox channel information
52 * X-Gene SlimPRO Mailbox controller data
54 * X-Gene SlimPRO Mailbox controller has 8 communication channels.
70 writel(msg[1], mb_chan->reg + REG_DB_DOUT0); in mb_chan_send_msg()
71 writel(msg[2], mb_chan->reg + REG_DB_DOUT1); in mb_chan_send_msg()
72 writel(msg[0], mb_chan->reg + REG_DB_OUT); in mb_chan_send_msg()
77 mb_chan->rx_msg[1] = readl(mb_chan->reg + REG_DB_DIN0); in mb_chan_recv_msg()
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H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
6 on-chip processors through queued messages and interrupt driven
37 will be discovered and possibly managed at probe-time.
54 processer can write data in a channel, and set co-responding register
101 running on the Cortex-M3 rWTM secure processor of the Armada 37xx
118 This driver provides support for inter-processor communication
207 module will be called mailbox-mpfs.
212 tristate "Microchip Inter-processor Communication (IPC) SBI driver"
217 Inter-process communication (IPC) controller.
220 module will be called mailbox-mchp-ipc-sbi.
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/linux/drivers/pci/controller/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0
52 system-on-chips, like the Apple M1. This is required for the USB
53 type-A ports, Ethernet, Wi-Fi, and Bluetooth.
111 bool "Cavium Thunder PCIe controller to off-chip devices"
119 bool "Cavium Thunder ECAM controller to on-chip devices on pass-1.x silicon"
124 Say Y here if you want ECAM support for CN88XX-Pass-1.x Cavium Thunder SoCs.
154 in the Intel IXP4xx XScale-based network processor SoC.
191 is used on 32-bit Marvell ARM SoCs: Dove, Kirkwood, Armada 370,
192 Armada XP, Armada 375, Armada 38x and Armada 39x.
213 multi-function devices.
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H A Dpci-xgene-msi.c1 // SPDX-License-Identifier: GPL-2.0+
3 * APM X-Gene MSI Driver
16 #include <linux/irqchip/irq-msi-lib.h>
49 * X-Gene v1 has 16 frames of MSI termination registers MSInIRx, where n is
50 * frame number (0..15), x is index of registers in each frame (0..7). Each
94 return readl_relaxed(msi->msi_regs + MSI_IR0 + in xgene_msi_ir_read()
102 return readl_relaxed(msi->msi_regs + MSI_INT0 + in xgene_msi_int_read()
110 * that XGene-1 has 8 CPUs, each CPU gets two frames assigned to it
118 * - hwirq[7]::cpu[2:0] is the target frame number (n in MSInIRx)
119 * - hwirq[6:4] is the register index in any given frame (x in MSInIRx)
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/linux/Documentation/admin-guide/perf/
H A Dxgene-pmu.rst2 APM X-Gene SoC Performance Monitoring Unit (PMU)
5 X-Gene SoC PMU consists of various independent system device PMUs such as
12 -----------------
14 The xgene-pmu driver registers several perf PMU drivers. Each of the perf
21 can be used with perf tool. For example, "l3c0/bank-fifo-full/" is an
32 each PMU, please refer to APM X-Gene User Manual.
39 / # perf list | grep -e l3c -e iob -e mcb -e mc
40 l3c0/ackq-full/ [Kernel PMU event]
42 mcb1/mcb-csw-stall/ [Kernel PMU event]
44 / # perf stat -a -e l3c0/read-miss/,mcb1/csw-write-request/ sleep 1
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/linux/drivers/net/ethernet/apm/xgene/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 tristate "APM X-Gene SoC Ethernet Driver"
9 This is the Ethernet driver for the on-chip ethernet interface on the
10 APM X-Gene SoC.
/linux/Documentation/devicetree/bindings/hwmon/
H A Dapm-xgene-hwmon.txt1 APM X-Gene hwmon driver
3 APM X-Gene SOC sensors are accessed over the "SLIMpro" mailbox.
6 - compatible : should be "apm,xgene-slimpro-hwmon"
7 - mboxes : use the label reference for the mailbox as the first parameter.
12 compatible = "apm,xgene-slimpro-hwmon";
/linux/drivers/net/ethernet/apm/xgene-v2/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 tristate "APM X-Gene SoC Ethernet-v2 Driver"
6 This is the Ethernet driver for the on-chip ethernet interface
8 APM X-Gene SoCs.
11 be called xgene-enet-v2.
H A Dmdio.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Applied Micro X-Gene SoC Ethernet v2 Driver
14 struct xge_pdata *pdata = bus->priv; in xge_mdio_write()
26 } while ((done & MII_MGMT_BUSY) && wait--); in xge_mdio_write()
29 dev_err(&bus->dev, "MII_MGMT write failed\n"); in xge_mdio_write()
30 return -ETIMEDOUT; in xge_mdio_write()
38 struct xge_pdata *pdata = bus->priv; in xge_mdio_read()
50 } while ((done & MII_MGMT_BUSY) && wait--); in xge_mdio_read()
53 dev_err(&bus->dev, "MII_MGMT read failed\n"); in xge_mdio_read()
54 return -ETIMEDOUT; in xge_mdio_read()
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H A DMakefile1 # SPDX-License-Identifier: GPL-2.0-only
3 # Makefile for APM X-Gene Ethernet v2 driver
6 xgene-enet-v2-objs := main.o mac.o enet.o ring.o mdio.o ethtool.o
7 obj-$(CONFIG_NET_XGENE_V2) += xgene-enet-v2.o
/linux/Documentation/devicetree/bindings/rtc/
H A Dxgene-rtc.txt1 * APM X-Gene Real Time Clock
3 RTC controller for the APM X-Gene Real Time Clock
6 - compatible : Should be "apm,xgene-rtc"
7 - reg: physical base address of the controller and length of memory mapped
9 - interrupts: IRQ line for the RTC.
10 - #clock-cells: Should be 1.
11 - clocks: Reference to the clock entry.
16 compatible = "fixed-clock";
17 #clock-cells = <1>;
18 clock-frequency = <100000000>;
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/linux/Documentation/hwmon/
H A Dxgene-hwmon.rst1 Kernel driver xgene-hwmon
6 * APM X-Gene SoC
9 -----------
12 APM X-Gene SoC using the mailbox communication interface.
19 - SoC on-die temperature in milli-degree C
20 - Alarm when high/over temperature occurs
23 - CPU power in uW
24 - IO power in uW
26 sysfs-Interface
27 ---------------
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/linux/Documentation/devicetree/bindings/rng/
H A Dapm,x-gene-rng.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/rng/apm,x-gene-rng.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: APM X-Gene SoC Random Number Generator
10 - Khuong Dinh <khuong@os.amperecomputing.com>
14 const: apm,xgene-rng
26 - compatible
27 - clocks
28 - interrupts
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/linux/Documentation/devicetree/bindings/dma/
H A Dapm-xgene-dma.txt1 Applied Micro X-Gene SoC DMA nodes
3 DMA nodes are defined to describe on-chip DMA interfaces in
4 APM X-Gene SoC.
7 - compatible: Should be "apm,xgene-dma".
8 - device_type: set to "dma".
9 - reg: Address and length of the register set for the device.
11 1st - DMA control and status register address space.
12 2nd - Descriptor ring control and status register address space.
13 3rd - Descriptor ring command register address space.
14 4th - Soc efuse register address space.
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/linux/include/linux/
H A Dpci-ecam.h1 /* SPDX-License-Identifier: GPL-2.0 */
13 * Memory address shift values for the byte-level address that
21 * Section 7.2.2, Table 7-1, p. 677.
30 #define PCIE_ECAM_BUS(x) (((x) & PCIE_ECAM_BUS_MASK) << PCIE_ECAM_BUS_SHIFT) argument
31 #define PCIE_ECAM_DEVFN(x) (((x) & PCIE_ECAM_DEVFN_MASK) << PCIE_ECAM_DEVFN_SHIFT) argument
32 #define PCIE_ECAM_REG(x) ((x) & PCIE_ECAM_REG_MASK) argument
66 void __iomem *win; /* 64-bit single mapping */
67 void __iomem **winp; /* 32-bit per-bus mapping */
78 /* map_bus when ->sysdata is an instance of pci_config_window */
85 extern const struct pci_ecam_ops pci_32b_ops; /* 32-bit accesses only */
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/linux/drivers/gpio/
H A Dgpio-xgene-sb.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * AppliedMicro X-Gene SoC GPIO-Standby Driver
25 #include "gpiolib-acpi.h"
30 #define GPIO_MASK(x) (1U << ((x) % 32)) argument
42 * struct xgene_gpio_sb - GPIO-Standby private data structure.
43 * @gc: memory-mapped GPIO controllers.
59 #define HWIRQ_TO_GPIO(priv, hwirq) ((hwirq) + (priv)->irq_start)
60 #define GPIO_TO_HWIRQ(priv, gpio) ((gpio) - (priv)->irq_start)
67 data = gc->read_reg(reg); in xgene_gpio_set_bit()
72 gc->write_reg(reg, data); in xgene_gpio_set_bit()
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/linux/drivers/power/reset/
H A Dxgene-reboot.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * AppliedMicro X-Gene SoC Reboot Driver
9 * This driver provides system reboot functionality for APM X-Gene SoC.
11 * implements GPIO shutdown, use the gpio-poweroff.c driver.
31 struct xgene_reboot_context *ctx = data->cb_data; in xgene_restart_handler()
34 writel(ctx->mask, ctx->csr); in xgene_restart_handler()
38 dev_emerg(ctx->dev, "Unable to restart system\n"); in xgene_restart_handler()
46 struct device *dev = &pdev->dev; in xgene_reboot_probe()
51 return -ENOMEM; in xgene_reboot_probe()
53 ctx->csr = devm_platform_ioremap_resource(pdev, 0); in xgene_reboot_probe()
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/linux/drivers/phy/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
23 Generic MIPI D-PHY support.
25 Provides a number of helpers a core functions for MIPI D-PHY
51 Enable support for the USB high-speed SNPS eUSB2 phy on select
55 tristate "APM X-Gene 15Gbps PHY support"
59 This option enables support for APM X-Gene SoC multi-purpose PHY.
70 interface to interact with USB GEN-II and USB 3.x PHY that is part
84 tristate "Airoha PCIe-PHY Driver"
94 tristate "NXP PTN3222 1-port eUSB2 to USB2 redriver"
99 Enable this to support NXP PTN3222 1-port eUSB2 to USB2 Redriver.
/linux/Documentation/devicetree/bindings/gpio/
H A Dapm,xgene-gpio-sb.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/apm,xgene-gpio-sb.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: APM X-Gene Standby GPIO controller
10 - Khuong Dinh <khuong@os.amperecomputing.com>
16 +-----------------+
17 | X-Gene standby |
18 | GPIO controller +------ GPIO_0
19 +------------+ | | ...
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/linux/Documentation/devicetree/bindings/net/
H A Dapm-xgene-enet.txt1 APM X-Gene SoC Ethernet nodes
3 Ethernet nodes are defined to describe on-chip ethernet interfaces in
4 APM X-Gene SoC.
7 - compatible: Should state binding information from the following list,
8 - "apm,xgene-enet": RGMII based 1G interface
9 - "apm,xgene1-sgenet": SGMII based 1G interface
10 - "apm,xgene1-xgenet": XFI based 10G interface
11 - reg: Address and length of the register set for the device. It contains the
12 information of registers in the same order as described by reg-names
13 - reg-names: Should contain the register set names
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/linux/Documentation/devicetree/bindings/perf/
H A Dapm-xgene-pmu.txt1 * APM X-Gene SoC PMU bindings
3 This is APM X-Gene SoC PMU (Performance Monitoring Unit) module.
6 L3C - L3 cache controller
7 IOB - IO bridge
8 MCB - Memory controller bridge
9 MC - Memory controller
14 - compatible : Shall be "apm,xgene-pmu" for revision 1 or
15 "apm,xgene-pmu-v2" for revision 2.
16 - regmap-csw : Regmap of the CPU switch fabric (CSW) resource.
17 - regmap-mcba : Regmap of the MCB-A (memory bridge) resource.
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/linux/drivers/char/hw_random/
H A Dxgene-rng.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * APM X-Gene SoC RNG Driver
94 disable_irq(ctx->irq); in xgene_rng_expired_timer()
95 ctx->failure_cnt = 0; in xgene_rng_expired_timer()
96 timer_delete(&ctx->failure_timer); in xgene_rng_expired_timer()
97 enable_irq(ctx->irq); in xgene_rng_expired_timer()
102 ctx->failure_timer.expires = jiffies + 120 * HZ; in xgene_rng_start_timer()
103 add_timer(&ctx->failure_timer); in xgene_rng_start_timer()
111 writel(fro_val, ctx->csr_base + RNG_FRODETUNE); in xgene_rng_init_fro()
112 writel(0x00000000, ctx->csr_base + RNG_ALARMMASK); in xgene_rng_init_fro()
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/linux/drivers/acpi/
H A Dpci_mcfg.c1 // SPDX-License-Identifier: GPL-2.0-only
13 #include <linux/pci-acpi.h>
14 #include <linux/pci-ecam.h>
37 ((end) - (start) + 1), \
104 /* SoC pass2.x */
109 /* SoC pass1.x */
110 THUNDER_PEM_QUIRK(2, 0), /* off-chip devices */
111 THUNDER_PEM_QUIRK(2, 1), /* off-chip devices */
136 /* X-Gene SoC with v1 PCIe controller */
147 /* X-Gene SoC with v2.1 PCIe controller */
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/linux/drivers/i2c/busses/
H A Di2c-xgene-slimpro.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * X-Gene SLIMpro I2C Driver
9 * This driver provides support for X-Gene SLIMpro I2C device access
10 * using the APM X-Gene SLIMpro mailbox driver.
14 #include <linux/dma-mapping.h>
62 * dev - Controller number (0-based)
63 * chip - I2C chip address
64 * op - SLIMPRO_IIC_READ or SLIMPRO_IIC_WRITE
65 * proto - SLIMPRO_IIC_SMB_PROTOCOL or SLIMPRO_IIC_I2C_PROTOCOL
66 * addrlen - Length of the address field
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/linux/drivers/net/ethernet/apm/
H A DMakefile1 # SPDX-License-Identifier: GPL-2.0-only
3 # Makefile for APM X-GENE Ethernet driver.
6 obj-$(CONFIG_NET_XGENE) += xgene/
7 obj-$(CONFIG_NET_XGENE_V2) += xgene-v2/

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