diff options
Diffstat (limited to 'target/linux/ipq806x/patches/0153-soc-qcom-tcsr-Add-TCSR-driver.patch')
| -rw-r--r-- | target/linux/ipq806x/patches/0153-soc-qcom-tcsr-Add-TCSR-driver.patch | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches/0153-soc-qcom-tcsr-Add-TCSR-driver.patch b/target/linux/ipq806x/patches/0153-soc-qcom-tcsr-Add-TCSR-driver.patch new file mode 100644 index 0000000000..03b65e6872 --- /dev/null +++ b/target/linux/ipq806x/patches/0153-soc-qcom-tcsr-Add-TCSR-driver.patch @@ -0,0 +1,169 @@ +From 0b469f3f4c0e6a0e0b1b60a059600e325a03b6f5 Mon Sep 17 00:00:00 2001 +From: Andy Gross <agross@codeaurora.org> +Date: Thu, 12 Jun 2014 00:52:06 -0500 +Subject: [PATCH 153/182] soc: qcom: tcsr: Add TCSR driver + +This patch adds support for the TCSR IP block present in Qualcomm processors. + +Signed-off-by: Andy Gross <agross@codeaurora.org> +--- + .../devicetree/bindings/soc/qcom/qcom,tcsr.txt | 25 ++++++++ + drivers/soc/qcom/Kconfig | 6 ++ + drivers/soc/qcom/Makefile | 1 + + drivers/soc/qcom/qcom_tcsr.c | 64 ++++++++++++++++++++ + include/dt-bindings/soc/qcom,tcsr.h | 19 ++++++ + 5 files changed, 115 insertions(+) + create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,tcsr.txt + create mode 100644 drivers/soc/qcom/qcom_tcsr.c + create mode 100644 include/dt-bindings/soc/qcom,tcsr.h + +diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,tcsr.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,tcsr.txt +new file mode 100644 +index 0000000..6ea74c1 +--- /dev/null ++++ b/Documentation/devicetree/bindings/soc/qcom/qcom,tcsr.txt +@@ -0,0 +1,25 @@ ++QCOM TCSR (Top Control and Status Register) Driver ++ ++The TCSR provides miscellaneous control functions and status registers for ++Qualcomm processors. ++ ++Required properties: ++- compatible: must contain "qcom,tcsr" for IPQ806x ++- reg: Address range for TCSR registers ++ ++Optional properties: ++- qcom,usb-ctrl-select : indicates USB port type selection. Please reference ++ dt-bindings/soc/qcom,tcsr.h for valid USB port selection values. ++ ++Example for IPQ8064: ++ ++#include <dt-bindings/soc/qcom,tcsr.h> ++ ++ tcsr: tcsr@1a400000 { ++ compatible = "qcom,tcsr"; ++ reg = <0x1a400000 0x100>; ++ ++ qcom,usb-ctrl-select = <TCSR_USB_SELECT_USB3_DUAL>; ++ }; ++ ++ +diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig +index 7bd2c94..3e4486a 100644 +--- a/drivers/soc/qcom/Kconfig ++++ b/drivers/soc/qcom/Kconfig +@@ -9,3 +9,9 @@ config QCOM_GSBI + functions for connecting the underlying serial UART, SPI, and I2C + devices to the output pins. + ++config QCOM_TCSR ++ tristate "QCOM Top Control and Status Registers" ++ depends on ARCH_QCOM ++ help ++ Say y here to enable TCSR support. The TCSR provides control ++ functions for various peripherals. +diff --git a/drivers/soc/qcom/Makefile b/drivers/soc/qcom/Makefile +index 4389012..d299492 100644 +--- a/drivers/soc/qcom/Makefile ++++ b/drivers/soc/qcom/Makefile +@@ -1 +1,2 @@ + obj-$(CONFIG_QCOM_GSBI) += qcom_gsbi.o ++obj-$(CONFIG_QCOM_TCSR) += qcom_tcsr.o +diff --git a/drivers/soc/qcom/qcom_tcsr.c b/drivers/soc/qcom/qcom_tcsr.c +new file mode 100644 +index 0000000..dd33153 +--- /dev/null ++++ b/drivers/soc/qcom/qcom_tcsr.c +@@ -0,0 +1,64 @@ ++/* ++ * Copyright (c) 2014, The Linux foundation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License rev 2 and ++ * only rev 2 as published by the free Software foundation. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or fITNESS fOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ */ ++ ++#include <linux/clk.h> ++#include <linux/err.h> ++#include <linux/io.h> ++#include <linux/module.h> ++#include <linux/of.h> ++#include <linux/of_platform.h> ++#include <linux/platform_device.h> ++ ++#define TCSR_USB_PORT_SEL 0xb0 ++ ++static int tcsr_probe(struct platform_device *pdev) ++{ ++ struct resource *res; ++ const struct device_node *node = pdev->dev.of_node; ++ void __iomem *base; ++ u32 val; ++ ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ base = devm_ioremap_resource(&pdev->dev, res); ++ if (IS_ERR(base)) ++ return PTR_ERR(base); ++ ++ if (!of_property_read_u32(node, "qcom,usb-ctrl-select", &val)) { ++ dev_err(&pdev->dev, "setting usb port select = %d\n", val); ++ writel(val, base + TCSR_USB_PORT_SEL); ++ } ++ ++ return 0; ++} ++ ++static const struct of_device_id tcsr_dt_match[] = { ++ { .compatible = "qcom,tcsr", }, ++ { }, ++}; ++ ++MODULE_DEVICE_TABLE(of, tcsr_dt_match); ++ ++static struct platform_driver tcsr_driver = { ++ .driver = { ++ .name = "tcsr", ++ .owner = THIS_MODULE, ++ .of_match_table = tcsr_dt_match, ++ }, ++ .probe = tcsr_probe, ++}; ++ ++module_platform_driver(tcsr_driver); ++ ++MODULE_AUTHOR("Andy Gross <agross@codeaurora.org>"); ++MODULE_DESCRIPTION("QCOM TCSR driver"); ++MODULE_LICENSE("GPL v2"); +diff --git a/include/dt-bindings/soc/qcom,tcsr.h b/include/dt-bindings/soc/qcom,tcsr.h +new file mode 100644 +index 0000000..c9d497a +--- /dev/null ++++ b/include/dt-bindings/soc/qcom,tcsr.h +@@ -0,0 +1,19 @@ ++/* Copyright (c) 2014, The Linux Foundation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 and ++ * only version 2 as published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ */ ++#ifndef __DT_BINDINGS_QCOM_TCSR_H ++#define __DT_BINDINGS_QCOM_TCSR_H ++ ++#define TCSR_USB_SELECT_USB3_P0 0x1 ++#define TCSR_USB_SELECT_USB3_P1 0x2 ++#define TCSR_USB_SELECT_USB3_DUAL 0x3 ++ ++#endif +-- +1.7.10.4 + |