From: kishon@ti•com (Kishon Vijay Abraham I)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v2 2/3] ARM: DRA7: add pdata-quirks to do reset of PCIe
Date: Wed, 13 Jan 2016 12:17:45 +0530 [thread overview]
Message-ID: <1452667666-17533-3-git-send-email-kishon@ti.com> (raw)
In-Reply-To: <1452667666-17533-1-git-send-email-kishon@ti.com>
Use pdata-quirks to reset PCIe IP. This is to be used until
a drivers/reset/ interface is available for this purpose.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti•com>
Signed-off-by: Sekhar Nori <nsekhar@ti•com>
---
arch/arm/mach-omap2/pdata-quirks.c | 11 +++++++++++
include/linux/platform_data/pci-dra7xx.h | 22 ++++++++++++++++++++++
2 files changed, 33 insertions(+)
create mode 100644 include/linux/platform_data/pci-dra7xx.h
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index 5814477..f5a65fe 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -23,6 +23,7 @@
#include <linux/platform_data/pinctrl-single.h>
#include <linux/platform_data/iommu-omap.h>
#include <linux/platform_data/wkup_m3.h>
+#include <linux/platform_data/pci-dra7xx.h>
#include "common.h"
#include "common-board-devices.h"
@@ -404,6 +405,14 @@ static void __init omap5_uevm_legacy_init(void)
}
#endif
+#ifdef CONFIG_SOC_DRA7XX
+static struct pci_dra7xx_platform_data dra7xx_pci_pdata = {
+ .reset_name = "pcie",
+ .assert_reset = omap_device_assert_hardreset,
+ .deassert_reset = omap_device_deassert_hardreset,
+};
+#endif
+
static struct pcs_pdata pcs_pdata;
void omap_pcs_legacy_init(int irq, void (*rearm)(void))
@@ -474,6 +483,8 @@ static struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
#endif
#ifdef CONFIG_SOC_DRA7XX
OF_DEV_AUXDATA("ti,dra7-padconf", 0x4a003400, "4a003400.pinmux", &pcs_pdata),
+ OF_DEV_AUXDATA("ti,dra7-pcie", 0x51000000, "51000000.pcie", &dra7xx_pci_pdata),
+ OF_DEV_AUXDATA("ti,dra7-pcie", 0x51800000, "51800000.pcie", &dra7xx_pci_pdata),
#endif
#ifdef CONFIG_SOC_AM43XX
OF_DEV_AUXDATA("ti,am437-padconf", 0x44e10800, "44e10800.pinmux", &pcs_pdata),
diff --git a/include/linux/platform_data/pci-dra7xx.h b/include/linux/platform_data/pci-dra7xx.h
new file mode 100644
index 0000000..792c8ed
--- /dev/null
+++ b/include/linux/platform_data/pci-dra7xx.h
@@ -0,0 +1,22 @@
+/*
+ * pcie-dra7xx - Platform data for PCIe controller
+ *
+ * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * Authors: Kishon Vijay Abraham I <kishon@ti•com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __PCI_DRA7XX_H
+#define __PCI_DRA7XX_H
+
+struct pci_dra7xx_platform_data {
+ const char *reset_name;
+
+ int (*assert_reset)(struct platform_device *pdev, const char *name);
+ int (*deassert_reset)(struct platform_device *pdev, const char *name);
+};
+#endif /* __PCI_DRA7XX_H */
--
1.7.9.5
next prev parent reply other threads:[~2016-01-13 6:47 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-13 6:47 [PATCH v2 0/3] dra7xx: get pcie working in mainline Kishon Vijay Abraham I
2016-01-13 6:47 ` [PATCH v2 1/3] ARM: DRA7: hwmod: Add reset data for PCIe Kishon Vijay Abraham I
2016-01-13 17:13 ` Tony Lindgren
2016-01-13 17:46 ` Suman Anna
2016-01-13 6:47 ` Kishon Vijay Abraham I [this message]
2016-01-13 17:35 ` [PATCH v2 2/3] ARM: DRA7: add pdata-quirks to do reset of PCIe Suman Anna
2016-01-13 6:47 ` [PATCH v2 3/3] pci: dra7xx: use pdata callbacks to perform reset Kishon Vijay Abraham I
2016-01-13 17:19 ` Tony Lindgren
2016-01-13 17:51 ` Suman Anna
2016-01-14 8:37 ` Kishon Vijay Abraham I
2016-01-14 13:28 ` Kishon Vijay Abraham I
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