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-rw-r--r--target/linux/sunxi/patches-3.12/191-add-sunxi-ahci.patch436
1 files changed, 0 insertions, 436 deletions
diff --git a/target/linux/sunxi/patches-3.12/191-add-sunxi-ahci.patch b/target/linux/sunxi/patches-3.12/191-add-sunxi-ahci.patch
deleted file mode 100644
index 9034be3101..0000000000
--- a/target/linux/sunxi/patches-3.12/191-add-sunxi-ahci.patch
+++ /dev/null
@@ -1,436 +0,0 @@
-From b7f492ca20e480ea3402692e165f919f20145935 Mon Sep 17 00:00:00 2001
-From: Oliver Schinagl <oliver@schinagl.nl>
-Date: Tue, 3 Dec 2013 12:07:01 +0100
-Subject: [PATCH] ARM: sunxi: Add an ahci-platform compatible AHCI driver for
- the Allwinner SUNXi series of SoCs
-
-This patch adds support for the sunxi series of SoC's by allwinner. It
-plugs into the ahci-platform framework.
-
-Note: Currently it uses a somewhat hackish approach that probably needs
-a lot more work, but does the same as the IMX SoC's.
-
-Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
----
- .../devicetree/bindings/ata/ahci-sunxi.txt | 24 ++
- drivers/ata/Kconfig | 9 +
- drivers/ata/Makefile | 1 +
- drivers/ata/ahci_platform.c | 12 +
- drivers/ata/ahci_sunxi.c | 305 +++++++++++++++++++++
- 5 files changed, 351 insertions(+)
- create mode 100644 Documentation/devicetree/bindings/ata/ahci-sunxi.txt
- create mode 100644 drivers/ata/ahci_sunxi.c
-
-diff --git a/Documentation/devicetree/bindings/ata/ahci-sunxi.txt b/Documentation/devicetree/bindings/ata/ahci-sunxi.txt
-new file mode 100644
-index 0000000..0792fa5
---- /dev/null
-+++ b/Documentation/devicetree/bindings/ata/ahci-sunxi.txt
-@@ -0,0 +1,24 @@
-+Allwinner SUNXI AHCI SATA Controller
-+
-+SATA nodes are defined to describe on-chip Serial ATA controllers.
-+Each SATA controller should have its own node.
-+
-+Required properties:
-+- compatible : compatible list, contains "allwinner,sun4i-a10-ahci"
-+- reg : <registers mapping>
-+- interrupts : <interrupt mapping for AHCI IRQ>
-+- clocks : clocks for ACHI
-+- clock-names : clock names for AHCI
-+
-+Optional properties:
-+- pwr-supply : regulator to control the power supply GPIO
-+
-+Example:
-+ ahci@01c18000 {
-+ compatible = "allwinner,sun4i-a10-ahci";
-+ reg = <0x01c18000 0x1000>;
-+ interrupts = <0 56 1>;
-+ clocks = <&ahb_gates 25>, <&pll6 0>;
-+ clock-names = "ahb_sata", "pll6_sata";
-+ pwr-supply = <&reg_ahci_5v>;
-+ };
-diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
-index 4e73772..b87e2ba 100644
---- a/drivers/ata/Kconfig
-+++ b/drivers/ata/Kconfig
-@@ -106,6 +106,15 @@ config AHCI_IMX
-
- If unsure, say N.
-
-+config AHCI_SUNXI
-+ tristate "Allwinner sunxi AHCI SATA support"
-+ depends on SATA_AHCI_PLATFORM && ARCH_SUNXI
-+ help
-+ This option enables support for the Allwinner sunxi SoC's
-+ onboard AHCI SATA.
-+
-+ If unsure, say N.
-+
- config SATA_FSL
- tristate "Freescale 3.0Gbps SATA support"
- depends on FSL_SOC
-diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile
-index 46518c6..246050b 100644
---- a/drivers/ata/Makefile
-+++ b/drivers/ata/Makefile
-@@ -11,6 +11,7 @@ obj-$(CONFIG_SATA_SIL24) += sata_sil24.o
- obj-$(CONFIG_SATA_DWC) += sata_dwc_460ex.o
- obj-$(CONFIG_SATA_HIGHBANK) += sata_highbank.o libahci.o
- obj-$(CONFIG_AHCI_IMX) += ahci_imx.o
-+obj-$(CONFIG_AHCI_SUNXI) += ahci_sunxi.o
-
- # SFF w/ custom DMA
- obj-$(CONFIG_PDC_ADMA) += pdc_adma.o
-diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
-index 4b231ba..1046b44 100644
---- a/drivers/ata/ahci_platform.c
-+++ b/drivers/ata/ahci_platform.c
-@@ -31,6 +31,7 @@ enum ahci_type {
- AHCI, /* standard platform ahci */
- IMX53_AHCI, /* ahci on i.mx53 */
- STRICT_AHCI, /* delayed DMA engine start */
-+ SUNXI_AHCI, /* ahci on sunxi */
- };
-
- static struct platform_device_id ahci_devtype[] = {
-@@ -44,6 +45,9 @@ enum ahci_type {
- .name = "strict-ahci",
- .driver_data = STRICT_AHCI,
- }, {
-+ .name = "sunxi-ahci",
-+ .driver_data = SUNXI_AHCI,
-+ }, {
- /* sentinel */
- }
- };
-@@ -81,6 +85,14 @@ struct ata_port_operations ahci_platform_ops = {
- .udma_mask = ATA_UDMA6,
- .port_ops = &ahci_platform_ops,
- },
-+ [SUNXI_AHCI] = {
-+ AHCI_HFLAGS (AHCI_HFLAG_32BIT_ONLY | AHCI_HFLAG_NO_MSI |
-+ AHCI_HFLAG_NO_PMP | AHCI_HFLAG_YES_NCQ),
-+ .flags = AHCI_FLAG_COMMON,
-+ .pio_mask = ATA_PIO4,
-+ .udma_mask = ATA_UDMA6,
-+ .port_ops = &ahci_platform_ops,
-+ },
- };
-
- static struct scsi_host_template ahci_platform_sht = {
-diff --git a/drivers/ata/ahci_sunxi.c b/drivers/ata/ahci_sunxi.c
-new file mode 100644
-index 0000000..982641f
---- /dev/null
-+++ b/drivers/ata/ahci_sunxi.c
-@@ -0,0 +1,305 @@
-+/*
-+ * Allwinner sunxi AHCI SATA platform driver
-+ * Copyright 2013 Olliver Schinagl <oliver@schinagl.nl>
-+ *
-+ * Based on the AHCI SATA platform driver by Freescale and Allwinner
-+ * Based on code from
-+ * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
-+ * Daniel Wang <danielwang@allwinnertech.com>
-+ *
-+ * This program is free software; you can redistribute it and/or modify it
-+ * under the terms and conditions of the GNU General Public License,
-+ * version 2, as published by the Free Software Foundation.
-+ *
-+ * This program is distributed in the hope 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.
-+ *
-+ * You should have received a copy of the GNU General Public License along with
-+ * this program. If not, see <http://www.gnu.org/licenses/>.
-+ */
-+
-+#include <linux/kernel.h>
-+#include <linux/regulator/consumer.h>
-+#include <linux/module.h>
-+#include <linux/platform_device.h>
-+#include <linux/mod_devicetable.h>
-+#include <linux/of_device.h>
-+#include <linux/ioport.h>
-+#include <linux/device.h>
-+#include <linux/gfp.h>
-+#include <linux/clk.h>
-+#include <linux/clk-provider.h>
-+#include <linux/errno.h>
-+#include <linux/ahci_platform.h>
-+#include "ahci.h"
-+
-+#define DRV_NAME "sunxi-sata"
-+
-+#define AHCI_BISTAFR 0x00a0
-+#define AHCI_BISTCR 0x00a4
-+#define AHCI_BISTFCTR 0x00a8
-+#define AHCI_BISTSR 0x00ac
-+#define AHCI_BISTDECR 0x00b0
-+#define AHCI_DIAGNR0 0x00b4
-+#define AHCI_DIAGNR1 0x00b8
-+#define AHCI_OOBR 0x00bc
-+#define AHCI_PHYCS0R 0x00c0
-+#define AHCI_PHYCS1R 0x00c4
-+#define AHCI_PHYCS2R 0x00c8
-+#define AHCI_TIMER1MS 0x00e0
-+#define AHCI_GPARAM1R 0x00e8
-+#define AHCI_GPARAM2R 0x00ec
-+#define AHCI_PPARAMR 0x00f0
-+#define AHCI_TESTR 0x00f4
-+#define AHCI_VERSIONR 0x00f8
-+#define AHCI_IDR 0x00fc
-+#define AHCI_RWCR 0x00fc
-+#define AHCI_P0DMACR 0x0170
-+#define AHCI_P0PHYCR 0x0178
-+#define AHCI_P0PHYSR 0x017c
-+
-+struct sunxi_ahci_data {
-+ struct platform_device *ahci_pdev;
-+ struct regulator *regulator;
-+ struct clk *sata_clk;
-+ struct clk *ahb_clk;
-+};
-+
-+static void sunxi_clrbits(void __iomem *reg, u32 clr_val)
-+{
-+ u32 reg_val;
-+
-+ reg_val = readl(reg);
-+ reg_val &= ~(clr_val);
-+ writel(reg_val, reg);
-+}
-+
-+static void sunxi_setbits(void __iomem *reg, u32 set_val)
-+{
-+ u32 reg_val;
-+
-+ reg_val = readl(reg);
-+ reg_val |= set_val;
-+ writel(reg_val, reg);
-+}
-+
-+static void sunxi_clrsetbits(void __iomem *reg, u32 clr_val, u32 set_val)
-+{
-+ u32 reg_val;
-+
-+ reg_val = readl(reg);
-+ reg_val &= ~(clr_val);
-+ reg_val |= set_val;
-+ writel(reg_val, reg);
-+}
-+
-+static u32 sunxi_getbits(void __iomem *reg, u8 mask, u8 shift)
-+{
-+ return (readl(reg) >> shift) & mask;
-+}
-+
-+static int sunxi_ahci_phy_init(struct device *dev, void __iomem *reg_base)
-+{
-+ u32 reg_val;
-+ int timeout;
-+
-+ /* This magic is from the original code */
-+ writel(0, reg_base + AHCI_RWCR);
-+ mdelay(5);
-+
-+ sunxi_setbits(reg_base + AHCI_PHYCS1R, BIT(19));
-+ sunxi_clrsetbits(reg_base + AHCI_PHYCS0R,
-+ (0x7 << 24),
-+ (0x5 << 24) | BIT(23) | BIT(18));
-+ sunxi_clrsetbits(reg_base + AHCI_PHYCS1R,
-+ (0x3 << 16) | (0x1f << 8) | (0x3 << 6),
-+ (0x2 << 16) | (0x6 << 8) | (0x2 << 6));
-+ sunxi_setbits(reg_base + AHCI_PHYCS1R, BIT(28) | BIT(15));
-+ sunxi_clrbits(reg_base + AHCI_PHYCS1R, BIT(19));
-+ sunxi_clrsetbits(reg_base + AHCI_PHYCS0R,
-+ (0x7 << 20), (0x3 << 20));
-+ sunxi_clrsetbits(reg_base + AHCI_PHYCS2R,
-+ (0x1f << 5), (0x19 << 5));
-+ mdelay(5);
-+
-+ sunxi_setbits(reg_base + AHCI_PHYCS0R, (0x1 << 19));
-+
-+ timeout = 0x100000;
-+ do {
-+ reg_val = sunxi_getbits(reg_base + AHCI_PHYCS0R, 0x7, 28);
-+ } while (--timeout && (reg_val != 0x2));
-+ if (!timeout)
-+ dev_err(dev, "PHY power up failed.\n");
-+
-+ sunxi_setbits(reg_base + AHCI_PHYCS2R, (0x1 << 24));
-+
-+ timeout = 0x100000;
-+ do {
-+ reg_val = sunxi_getbits(reg_base + AHCI_PHYCS2R, 0x1, 24);
-+ } while (--timeout && reg_val);
-+ if (!timeout)
-+ dev_err(dev, "PHY calibration failed.\n");
-+ mdelay(15);
-+
-+ writel(0x7, reg_base + AHCI_RWCR);
-+
-+ return 0;
-+}
-+
-+static int sunxi_ahci_init(struct device *dev, void __iomem *reg_base)
-+{
-+ struct sunxi_ahci_data *ahci_data;
-+ int ret;
-+
-+ ahci_data = dev_get_drvdata(dev->parent);
-+
-+ ret = clk_prepare_enable(ahci_data->sata_clk);
-+ if (ret < 0)
-+ return ret;
-+
-+ ret = clk_prepare_enable(ahci_data->ahb_clk);
-+ if (ret < 0)
-+ return ret;
-+
-+ ret = regulator_enable(ahci_data->regulator);
-+ if (ret)
-+ return ret;
-+
-+ return sunxi_ahci_phy_init(dev, reg_base);
-+}
-+
-+static void sunxi_ahci_exit(struct device *dev)
-+{
-+ struct sunxi_ahci_data *ahci_data;
-+
-+ ahci_data = dev_get_drvdata(dev->parent);
-+
-+ regulator_disable(ahci_data->regulator);
-+
-+ clk_disable_unprepare(ahci_data->ahb_clk);
-+ clk_disable_unprepare(ahci_data->sata_clk);
-+}
-+
-+static struct ahci_platform_data sunxi_ahci_pdata = {
-+ .init = sunxi_ahci_init,
-+ .exit = sunxi_ahci_exit,
-+};
-+
-+static int sunxi_ahci_remove(struct platform_device *pdev)
-+{
-+ struct sunxi_ahci_data *ahci_data;
-+
-+ ahci_data = platform_get_drvdata(pdev);
-+ platform_device_unregister(ahci_data->ahci_pdev);
-+
-+ dev_dbg(&pdev->dev, "driver unloaded\n");
-+
-+ return 0;
-+}
-+
-+static const struct of_device_id sunxi_ahci_of_match[] = {
-+ { .compatible = "allwinner,sun4i-a10-ahci", .data = &sunxi_ahci_pdata},
-+ {/* sentinel */},
-+};
-+MODULE_DEVICE_TABLE(of, sunxi_ahci_of_match);
-+
-+static int sunxi_ahci_probe(struct platform_device *pdev)
-+{
-+ const struct ahci_platform_data *pdata;
-+ const struct of_device_id *of_dev_id;
-+ struct resource *mem, *irq, res[2];
-+ struct platform_device *ahci_pdev;
-+ struct sunxi_ahci_data *ahci_data;
-+ struct regulator *regulator;
-+ int ret;
-+
-+ regulator = devm_regulator_get(&pdev->dev, "pwr");
-+ if (IS_ERR(regulator)) {
-+ ret = PTR_ERR(regulator);
-+ if (ret != -EPROBE_DEFER)
-+ dev_err(&pdev->dev, "no regulator found (%d)\n", ret);
-+ return ret;
-+ }
-+
-+ ahci_data = devm_kzalloc(&pdev->dev, sizeof(*ahci_data), GFP_KERNEL);
-+ if (!ahci_data)
-+ return -ENOMEM;
-+
-+ ahci_pdev = platform_device_alloc("sunxi-ahci", -1);
-+ if (!ahci_pdev)
-+ return -ENODEV;
-+
-+ ahci_pdev->dev.parent = &pdev->dev;
-+
-+ ahci_data->regulator = regulator;
-+ ahci_data->ahb_clk = devm_clk_get(&pdev->dev, "ahb_sata");
-+ if (IS_ERR(ahci_data->ahb_clk)) {
-+ ret = PTR_ERR(ahci_data->ahb_clk);
-+ goto err_out;
-+ }
-+
-+ ahci_data->sata_clk = devm_clk_get(&pdev->dev, "pll6_sata");
-+ if (IS_ERR(ahci_data->sata_clk)) {
-+ ret = PTR_ERR(ahci_data->sata_clk);
-+ goto err_out;
-+ }
-+
-+ ahci_data->ahci_pdev = ahci_pdev;
-+ platform_set_drvdata(pdev, ahci_data);
-+
-+ ahci_pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
-+ ahci_pdev->dev.dma_mask = &ahci_pdev->dev.coherent_dma_mask;
-+ ahci_pdev->dev.of_node = pdev->dev.of_node;
-+
-+ of_dev_id = of_match_device(sunxi_ahci_of_match, &pdev->dev);
-+ if (of_dev_id) {
-+ pdata = of_dev_id->data;
-+ } else {
-+ ret = -EINVAL;
-+ goto err_out;
-+ }
-+
-+ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-+ irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-+ if (!mem || !irq) {
-+ ret = -ENOMEM;
-+ goto err_out;
-+ }
-+ res[0] = *mem;
-+ res[1] = *irq;
-+ ret = platform_device_add_resources(ahci_pdev, res, 2);
-+ if (ret)
-+ goto err_out;
-+
-+ ret = platform_device_add_data(ahci_pdev, pdata, sizeof(*pdata));
-+ if (ret)
-+ goto err_out;
-+
-+ ret = platform_device_add(ahci_pdev);
-+ if (ret)
-+ goto err_out;
-+
-+ return 0;
-+
-+err_out:
-+ platform_device_put(ahci_pdev);
-+ return ret;
-+}
-+
-+static struct platform_driver sunxi_ahci_driver = {
-+ .probe = sunxi_ahci_probe,
-+ .remove = sunxi_ahci_remove,
-+ .driver = {
-+ .name = DRV_NAME,
-+ .owner = THIS_MODULE,
-+ .of_match_table = sunxi_ahci_of_match,
-+ },
-+};
-+module_platform_driver(sunxi_ahci_driver);
-+
-+MODULE_DESCRIPTION("Allwinner sunxi AHCI SATA platform driver");
-+MODULE_AUTHOR("Olliver Schinagl <oliver@schinagl.nl>");
-+MODULE_LICENSE("GPL");
-+MODULE_ALIAS("ahci:sunxi");
---
-1.8.5.1
-