diff options
Diffstat (limited to 'target/linux/ipq806x/patches/0084-soc-qcom-Add-GSBI-driver.patch')
| -rw-r--r-- | target/linux/ipq806x/patches/0084-soc-qcom-Add-GSBI-driver.patch | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/target/linux/ipq806x/patches/0084-soc-qcom-Add-GSBI-driver.patch b/target/linux/ipq806x/patches/0084-soc-qcom-Add-GSBI-driver.patch deleted file mode 100644 index 545c4be52d..0000000000 --- a/target/linux/ipq806x/patches/0084-soc-qcom-Add-GSBI-driver.patch +++ /dev/null @@ -1,145 +0,0 @@ -From a2f0fc20ea49e5dbbdbb21444683ea760fbdd38f Mon Sep 17 00:00:00 2001 -From: Andy Gross <agross@codeaurora.org> -Date: Thu, 24 Apr 2014 11:31:21 -0500 -Subject: [PATCH 084/182] soc: qcom: Add GSBI driver - -The GSBI (General Serial Bus Interface) driver controls the overarching -configuration of the shared serial bus infrastructure on APQ8064, IPQ8064, and -earlier QCOM processors. The GSBI supports UART, I2C, SPI, and UIM -functionality in various combinations. - -Signed-off-by: Andy Gross <agross@codeaurora.org> -Signed-off-by: Kumar Gala <galak@codeaurora.org> ---- - drivers/soc/Kconfig | 2 + - drivers/soc/Makefile | 5 +++ - drivers/soc/qcom/Kconfig | 11 ++++++ - drivers/soc/qcom/Makefile | 1 + - drivers/soc/qcom/qcom_gsbi.c | 84 ++++++++++++++++++++++++++++++++++++++++++ - 5 files changed, 103 insertions(+) - create mode 100644 drivers/soc/Makefile - create mode 100644 drivers/soc/qcom/Kconfig - create mode 100644 drivers/soc/qcom/Makefile - create mode 100644 drivers/soc/qcom/qcom_gsbi.c - ---- a/drivers/soc/Kconfig -+++ b/drivers/soc/Kconfig -@@ -1,3 +1,5 @@ - menu "SOC (System On Chip) specific Drivers" - -+source "drivers/soc/qcom/Kconfig" -+ - endmenu ---- /dev/null -+++ b/drivers/soc/Makefile -@@ -0,0 +1,5 @@ -+# -+# Makefile for the Linux Kernel SOC specific device drivers. -+# -+ -+obj-$(CONFIG_ARCH_QCOM) += qcom/ ---- /dev/null -+++ b/drivers/soc/qcom/Kconfig -@@ -0,0 +1,11 @@ -+# -+# QCOM Soc drivers -+# -+config QCOM_GSBI -+ tristate "QCOM General Serial Bus Interface" -+ depends on ARCH_QCOM -+ help -+ Say y here to enable GSBI support. The GSBI provides control -+ functions for connecting the underlying serial UART, SPI, and I2C -+ devices to the output pins. -+ ---- /dev/null -+++ b/drivers/soc/qcom/Makefile -@@ -0,0 +1 @@ -+obj-$(CONFIG_QCOM_GSBI) += qcom_gsbi.o ---- /dev/null -+++ b/drivers/soc/qcom/qcom_gsbi.c -@@ -0,0 +1,84 @@ -+/* -+ * 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 GSBI_CTRL_REG 0x0000 -+#define GSBI_PROTOCOL_SHIFT 4 -+ -+static int gsbi_probe(struct platform_device *pdev) -+{ -+ struct device_node *node = pdev->dev.of_node; -+ struct resource *res; -+ void __iomem *base; -+ struct clk *hclk; -+ u32 mode, crci = 0; -+ -+ 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,mode", &mode)) { -+ dev_err(&pdev->dev, "missing mode configuration\n"); -+ return -EINVAL; -+ } -+ -+ /* not required, so default to 0 if not present */ -+ of_property_read_u32(node, "qcom,crci", &crci); -+ -+ dev_info(&pdev->dev, "GSBI port protocol: %d crci: %d\n", mode, crci); -+ -+ hclk = devm_clk_get(&pdev->dev, "iface"); -+ if (IS_ERR(hclk)) -+ return PTR_ERR(hclk); -+ -+ clk_prepare_enable(hclk); -+ -+ writel_relaxed((mode << GSBI_PROTOCOL_SHIFT) | crci, -+ base + GSBI_CTRL_REG); -+ -+ /* make sure the gsbi control write is not reordered */ -+ wmb(); -+ -+ clk_disable_unprepare(hclk); -+ -+ return of_platform_populate(pdev->dev.of_node, NULL, NULL, &pdev->dev); -+} -+ -+static const struct of_device_id gsbi_dt_match[] = { -+ { .compatible = "qcom,gsbi-v1.0.0", }, -+}; -+ -+MODULE_DEVICE_TABLE(of, gsbi_dt_match); -+ -+static struct platform_driver gsbi_driver = { -+ .driver = { -+ .name = "gsbi", -+ .owner = THIS_MODULE, -+ .of_match_table = gsbi_dt_match, -+ }, -+ .probe = gsbi_probe, -+}; -+ -+module_platform_driver(gsbi_driver); -+ -+MODULE_AUTHOR("Andy Gross <agross@codeaurora.org>"); -+MODULE_DESCRIPTION("QCOM GSBI driver"); -+MODULE_LICENSE("GPL v2"); |