mirror of https://github.com/hak5/openwrt.git
306 lines
8.7 KiB
Diff
306 lines
8.7 KiB
Diff
From a52ae09871d171d6771b4bef2d4c56dd435e740f Mon Sep 17 00:00:00 2001
|
|
From: Roger Quadros <rogerq@ti.com>
|
|
Date: Mon, 20 Jan 2014 16:32:33 +0200
|
|
Subject: [PATCH] ata: ahci_platform: Add DT compatible for Synopsis DWC AHCI
|
|
controller
|
|
|
|
Add compatible string "snps,dwc-ahci", which should be used
|
|
for Synopsis Designware SATA cores. e.g. on TI OMAP5 and DRA7 platforms.
|
|
|
|
Signed-off-by: Roger Quadros <rogerq@ti.com>
|
|
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
|
|
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
|
|
---
|
|
drivers/ata/ahci_platform.c | 1 +
|
|
1 file changed, 1 insertion(+)
|
|
|
|
diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
|
|
index bdadec1..d7e55ba 100644
|
|
--- a/drivers/ata/ahci_platform.c
|
|
+++ b/drivers/ata/ahci_platform.c
|
|
@@ -609,6 +609,7 @@ static const struct of_device_id ahci_of_match[] = {
|
|
{ .compatible = "snps,spear-ahci", },
|
|
{ .compatible = "snps,exynos5440-ahci", },
|
|
{ .compatible = "ibm,476gtr-ahci", },
|
|
+ { .compatible = "snps,dwc-ahci", },
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(of, ahci_of_match);
|
|
--
|
|
2.0.3
|
|
|
|
From 2be39fa6b6531bd083c766999345adc348b14c77 Mon Sep 17 00:00:00 2001
|
|
From: Roger Quadros <rogerq@ti.com>
|
|
Date: Mon, 27 Jan 2014 16:41:18 +0200
|
|
Subject: [PATCH] ata: ahci_platform: Manage SATA PHY
|
|
|
|
Some platforms have a PHY hooked up to the
|
|
SATA controller. The PHY needs to be initialized
|
|
and powered up for SATA to work. We do that
|
|
using the PHY framework.
|
|
|
|
CC: Balaji T K <balajitk@ti.com>
|
|
Signed-off-by: Roger Quadros <rogerq@ti.com>
|
|
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
|
|
---
|
|
drivers/ata/ahci.h | 2 ++
|
|
drivers/ata/ahci_platform.c | 47 +++++++++++++++++++++++++++++++++++++++++++--
|
|
2 files changed, 47 insertions(+), 2 deletions(-)
|
|
|
|
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
|
|
index bf8100c..3ab7ac9 100644
|
|
--- a/drivers/ata/ahci.h
|
|
+++ b/drivers/ata/ahci.h
|
|
@@ -37,6 +37,7 @@
|
|
|
|
#include <linux/clk.h>
|
|
#include <linux/libata.h>
|
|
+#include <linux/phy/phy.h>
|
|
#include <linux/regulator/consumer.h>
|
|
|
|
/* Enclosure Management Control */
|
|
@@ -325,6 +326,7 @@ struct ahci_host_priv {
|
|
u32 em_msg_type; /* EM message type */
|
|
struct clk *clks[AHCI_MAX_CLKS]; /* Optional */
|
|
struct regulator *target_pwr; /* Optional */
|
|
+ struct phy *phy; /* If platform uses phy */
|
|
void *plat_data; /* Other platform data */
|
|
/*
|
|
* Optional ahci_start_engine override, if not set this gets set to the
|
|
diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
|
|
index d7e55ba..99d38c1 100644
|
|
--- a/drivers/ata/ahci_platform.c
|
|
+++ b/drivers/ata/ahci_platform.c
|
|
@@ -23,6 +23,7 @@
|
|
#include <linux/platform_device.h>
|
|
#include <linux/libata.h>
|
|
#include <linux/ahci_platform.h>
|
|
+#include <linux/phy/phy.h>
|
|
#include "ahci.h"
|
|
|
|
static void ahci_host_stop(struct ata_host *host);
|
|
@@ -147,6 +148,7 @@ EXPORT_SYMBOL_GPL(ahci_platform_disable_clks);
|
|
* the following order:
|
|
* 1) Regulator
|
|
* 2) Clocks (through ahci_platform_enable_clks)
|
|
+ * 3) Phy
|
|
*
|
|
* If resource enabling fails at any point the previous enabled
|
|
* resources are disabled in reverse order.
|
|
@@ -171,8 +173,23 @@ int ahci_platform_enable_resources(struct ahci_host_priv *hpriv)
|
|
if (rc)
|
|
goto disable_regulator;
|
|
|
|
+ if (hpriv->phy) {
|
|
+ rc = phy_init(hpriv->phy);
|
|
+ if (rc)
|
|
+ goto disable_clks;
|
|
+
|
|
+ rc = phy_power_on(hpriv->phy);
|
|
+ if (rc) {
|
|
+ phy_exit(hpriv->phy);
|
|
+ goto disable_clks;
|
|
+ }
|
|
+ }
|
|
+
|
|
return 0;
|
|
|
|
+disable_clks:
|
|
+ ahci_platform_disable_clks(hpriv);
|
|
+
|
|
disable_regulator:
|
|
if (hpriv->target_pwr)
|
|
regulator_disable(hpriv->target_pwr);
|
|
@@ -186,14 +203,20 @@ EXPORT_SYMBOL_GPL(ahci_platform_enable_resources);
|
|
*
|
|
* This function disables all ahci_platform managed resources in
|
|
* the following order:
|
|
- * 1) Clocks (through ahci_platform_disable_clks)
|
|
- * 2) Regulator
|
|
+ * 1) Phy
|
|
+ * 2) Clocks (through ahci_platform_disable_clks)
|
|
+ * 3) Regulator
|
|
*
|
|
* LOCKING:
|
|
* None.
|
|
*/
|
|
void ahci_platform_disable_resources(struct ahci_host_priv *hpriv)
|
|
{
|
|
+ if (hpriv->phy) {
|
|
+ phy_power_off(hpriv->phy);
|
|
+ phy_exit(hpriv->phy);
|
|
+ }
|
|
+
|
|
ahci_platform_disable_clks(hpriv);
|
|
|
|
if (hpriv->target_pwr)
|
|
@@ -222,6 +245,7 @@ static void ahci_platform_put_resources(struct device *dev, void *res)
|
|
* 2) regulator for controlling the targets power (optional)
|
|
* 3) 0 - AHCI_MAX_CLKS clocks, as specified in the devs devicetree node,
|
|
* or for non devicetree enabled platforms a single clock
|
|
+ * 4) phy (optional)
|
|
*
|
|
* LOCKING:
|
|
* None.
|
|
@@ -283,6 +307,25 @@ struct ahci_host_priv *ahci_platform_get_resources(
|
|
hpriv->clks[i] = clk;
|
|
}
|
|
|
|
+ hpriv->phy = devm_phy_get(dev, "sata-phy");
|
|
+ if (IS_ERR(hpriv->phy)) {
|
|
+ rc = PTR_ERR(hpriv->phy);
|
|
+ switch (rc) {
|
|
+ case -ENODEV:
|
|
+ case -ENOSYS:
|
|
+ /* continue normally */
|
|
+ hpriv->phy = NULL;
|
|
+ break;
|
|
+
|
|
+ case -EPROBE_DEFER:
|
|
+ goto err_out;
|
|
+
|
|
+ default:
|
|
+ dev_err(dev, "couldn't get sata-phy\n");
|
|
+ goto err_out;
|
|
+ }
|
|
+ }
|
|
+
|
|
devres_remove_group(dev, NULL);
|
|
return hpriv;
|
|
|
|
--
|
|
2.0.3
|
|
|
|
From 22d93de35a39507bcdf0c62c5e1fab0625f7c6f6 Mon Sep 17 00:00:00 2001
|
|
From: Roger Quadros <rogerq@ti.com>
|
|
Date: Wed, 9 Oct 2013 15:08:59 +0300
|
|
Subject: [PATCH] ata: ahci_platform: runtime resume the device before use
|
|
|
|
On OMAP platforms the device needs to be runtime resumed before
|
|
it can be accessed. The OMAP HWMOD framework takes care of
|
|
enabling the module and its resources based on the
|
|
device's runtime PM state.
|
|
|
|
In this patch we runtime resume during .probe() and runtime suspend
|
|
after .remove().
|
|
|
|
We also update the runtime PM state during .resume().
|
|
|
|
CC: Balaji T K <balajitk@ti.com>
|
|
Signed-off-by: Roger Quadros <rogerq@ti.com>
|
|
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
|
|
---
|
|
drivers/ata/ahci.h | 1 +
|
|
drivers/ata/ahci_platform.c | 15 +++++++++++++++
|
|
2 files changed, 16 insertions(+)
|
|
|
|
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
|
|
index 3ab7ac9..51af275b 100644
|
|
--- a/drivers/ata/ahci.h
|
|
+++ b/drivers/ata/ahci.h
|
|
@@ -324,6 +324,7 @@ struct ahci_host_priv {
|
|
u32 em_loc; /* enclosure management location */
|
|
u32 em_buf_sz; /* EM buffer size in byte */
|
|
u32 em_msg_type; /* EM message type */
|
|
+ bool got_runtime_pm; /* Did we do pm_runtime_get? */
|
|
struct clk *clks[AHCI_MAX_CLKS]; /* Optional */
|
|
struct regulator *target_pwr; /* Optional */
|
|
struct phy *phy; /* If platform uses phy */
|
|
diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
|
|
index 99d38c1..75698a4 100644
|
|
--- a/drivers/ata/ahci_platform.c
|
|
+++ b/drivers/ata/ahci_platform.c
|
|
@@ -24,6 +24,7 @@
|
|
#include <linux/libata.h>
|
|
#include <linux/ahci_platform.h>
|
|
#include <linux/phy/phy.h>
|
|
+#include <linux/pm_runtime.h>
|
|
#include "ahci.h"
|
|
|
|
static void ahci_host_stop(struct ata_host *host);
|
|
@@ -229,6 +230,11 @@ static void ahci_platform_put_resources(struct device *dev, void *res)
|
|
struct ahci_host_priv *hpriv = res;
|
|
int c;
|
|
|
|
+ if (hpriv->got_runtime_pm) {
|
|
+ pm_runtime_put_sync(dev);
|
|
+ pm_runtime_disable(dev);
|
|
+ }
|
|
+
|
|
for (c = 0; c < AHCI_MAX_CLKS && hpriv->clks[c]; c++)
|
|
clk_put(hpriv->clks[c]);
|
|
}
|
|
@@ -326,6 +332,10 @@ struct ahci_host_priv *ahci_platform_get_resources(
|
|
}
|
|
}
|
|
|
|
+ pm_runtime_enable(dev);
|
|
+ pm_runtime_get_sync(dev);
|
|
+ hpriv->got_runtime_pm = true;
|
|
+
|
|
devres_remove_group(dev, NULL);
|
|
return hpriv;
|
|
|
|
@@ -635,6 +645,11 @@ int ahci_platform_resume(struct device *dev)
|
|
if (rc)
|
|
goto disable_resources;
|
|
|
|
+ /* We resumed so update PM runtime state */
|
|
+ pm_runtime_disable(dev);
|
|
+ pm_runtime_set_active(dev);
|
|
+ pm_runtime_enable(dev);
|
|
+
|
|
return 0;
|
|
|
|
disable_resources:
|
|
--
|
|
2.0.3
|
|
|
|
From 22cccaf7a29b2a9d8a1440d089f399a6d2432b81 Mon Sep 17 00:00:00 2001
|
|
From: Hans de Goede <hdegoede@redhat.com>
|
|
Date: Sun, 23 Feb 2014 11:37:17 +0100
|
|
Subject: [PATCH] ahci_sunxi: Use msleep instead of mdelay
|
|
|
|
ahci_sunxi_phy_init is called from the probe and resume code paths, and
|
|
sleeping is safe in both, so use msleep instead of mdelay.
|
|
|
|
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
|
|
---
|
|
drivers/ata/ahci_sunxi.c | 6 +++---
|
|
1 file changed, 3 insertions(+), 3 deletions(-)
|
|
|
|
diff --git a/drivers/ata/ahci_sunxi.c b/drivers/ata/ahci_sunxi.c
|
|
index 001f7dfc..d1bf3f7 100644
|
|
--- a/drivers/ata/ahci_sunxi.c
|
|
+++ b/drivers/ata/ahci_sunxi.c
|
|
@@ -90,7 +90,7 @@ static int ahci_sunxi_phy_init(struct device *dev, void __iomem *reg_base)
|
|
|
|
/* This magic is from the original code */
|
|
writel(0, reg_base + AHCI_RWCR);
|
|
- mdelay(5);
|
|
+ msleep(5);
|
|
|
|
sunxi_setbits(reg_base + AHCI_PHYCS1R, BIT(19));
|
|
sunxi_clrsetbits(reg_base + AHCI_PHYCS0R,
|
|
@@ -105,7 +105,7 @@ static int ahci_sunxi_phy_init(struct device *dev, void __iomem *reg_base)
|
|
(0x7 << 20), (0x3 << 20));
|
|
sunxi_clrsetbits(reg_base + AHCI_PHYCS2R,
|
|
(0x1f << 5), (0x19 << 5));
|
|
- mdelay(5);
|
|
+ msleep(5);
|
|
|
|
sunxi_setbits(reg_base + AHCI_PHYCS0R, (0x1 << 19));
|
|
|
|
@@ -137,7 +137,7 @@ static int ahci_sunxi_phy_init(struct device *dev, void __iomem *reg_base)
|
|
udelay(1);
|
|
} while (1);
|
|
|
|
- mdelay(15);
|
|
+ msleep(15);
|
|
|
|
writel(0x7, reg_base + AHCI_RWCR);
|
|
|
|
--
|
|
2.0.3
|
|
|