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authorDaniel Golle <daniel@makrotopia.org>2018-05-31 17:28:38 +0200
committerDaniel Golle <daniel@makrotopia.org>2018-06-01 15:45:06 +0200
commit17511a7ea86a34b5a5cfd4831d3a2e8a9e0cc005 (patch)
tree430bec140ba8a22a60f5422f79e4304b3cbaf1b5 /target/linux/oxnas/files/drivers/usb
parent91b5b2e20d531584918c62a6c6cd046f0580f50a (diff)
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oxnas: kill old oxnas target
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Diffstat (limited to 'target/linux/oxnas/files/drivers/usb')
-rw-r--r--target/linux/oxnas/files/drivers/usb/host/ehci-oxnas.c316
1 files changed, 0 insertions, 316 deletions
diff --git a/target/linux/oxnas/files/drivers/usb/host/ehci-oxnas.c b/target/linux/oxnas/files/drivers/usb/host/ehci-oxnas.c
deleted file mode 100644
index 15578a3027..0000000000
--- a/target/linux/oxnas/files/drivers/usb/host/ehci-oxnas.c
+++ /dev/null
@@ -1,316 +0,0 @@
-/*
- * drivers/usb/host/ehci-oxnas.c
- *
- * Tzachi Perelstein <tzachi@marvell.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <linux/usb.h>
-#include <linux/usb/hcd.h>
-#include <linux/dma-mapping.h>
-#include <linux/clk.h>
-#include <linux/reset.h>
-#include <mach/hardware.h>
-#include <mach/utils.h>
-
-#include "ehci.h"
-
-struct oxnas_hcd {
- struct clk *clk;
- struct clk *refsrc;
- struct clk *phyref;
- int use_pllb;
- int use_phya;
- struct reset_control *rst_host;
- struct reset_control *rst_phya;
- struct reset_control *rst_phyb;
-};
-
-#define DRIVER_DESC "Oxnas On-Chip EHCI Host Controller"
-
-static struct hc_driver __read_mostly oxnas_hc_driver;
-
-static void start_oxnas_usb_ehci(struct oxnas_hcd *oxnas)
-{
- u32 reg;
-
- if (oxnas->use_pllb) {
- /* enable pllb */
- clk_prepare_enable(oxnas->refsrc);
- /* enable ref600 */
- clk_prepare_enable(oxnas->phyref);
- /* 600MHz pllb divider for 12MHz */
- writel(PLLB_DIV_INT(50) | PLLB_DIV_FRAC(0),
- SEC_CTRL_PLLB_DIV_CTRL);
-
- } else {
- /* ref 300 divider for 12MHz */
- writel(REF300_DIV_INT(25) | REF300_DIV_FRAC(0),
- SYS_CTRL_REF300_DIV);
- }
-
- /* Ensure the USB block is properly reset */
- reset_control_reset(oxnas->rst_host);
- reset_control_reset(oxnas->rst_phya);
- reset_control_reset(oxnas->rst_phyb);
-
- /* Force the high speed clock to be generated all the time, via serial
- programming of the USB HS PHY */
- writel((2UL << USBHSPHY_TEST_ADD) |
- (0xe0UL << USBHSPHY_TEST_DIN), SYS_CTRL_USBHSPHY_CTRL);
-
- writel((1UL << USBHSPHY_TEST_CLK) |
- (2UL << USBHSPHY_TEST_ADD) |
- (0xe0UL << USBHSPHY_TEST_DIN), SYS_CTRL_USBHSPHY_CTRL);
-
- writel((0xfUL << USBHSPHY_TEST_ADD) |
- (0xaaUL << USBHSPHY_TEST_DIN), SYS_CTRL_USBHSPHY_CTRL);
-
- writel((1UL << USBHSPHY_TEST_CLK) |
- (0xfUL << USBHSPHY_TEST_ADD) |
- (0xaaUL << USBHSPHY_TEST_DIN), SYS_CTRL_USBHSPHY_CTRL);
-
- if (oxnas->use_pllb) /* use pllb clock */
- writel(USB_CLK_INTERNAL | USB_INT_CLK_PLLB, SYS_CTRL_USB_CTRL);
- else /* use ref300 derived clock */
- writel(USB_CLK_INTERNAL | USB_INT_CLK_REF300,
- SYS_CTRL_USB_CTRL);
-
- if (oxnas->use_phya) {
- /* Configure USB PHYA as a host */
- reg = readl(SYS_CTRL_USB_CTRL);
- reg &= ~USBAMUX_DEVICE;
- writel(reg, SYS_CTRL_USB_CTRL);
- }
-
- /* Enable the clock to the USB block */
- clk_prepare_enable(oxnas->clk);
-}
-
-static void stop_oxnas_usb_ehci(struct oxnas_hcd *oxnas)
-{
- reset_control_assert(oxnas->rst_host);
- reset_control_assert(oxnas->rst_phya);
- reset_control_assert(oxnas->rst_phyb);
-
- if (oxnas->use_pllb) {
- clk_disable_unprepare(oxnas->phyref);
- clk_disable_unprepare(oxnas->refsrc);
- }
- clk_disable_unprepare(oxnas->clk);
-}
-
-static int ehci_oxnas_reset(struct usb_hcd *hcd)
-{
- #define txttfill_tuning reserved2[0]
-
- struct ehci_hcd *ehci;
- u32 tmp;
- int retval = ehci_setup(hcd);
- if (retval)
- return retval;
-
- ehci = hcd_to_ehci(hcd);
- tmp = ehci_readl(ehci, &ehci->regs->txfill_tuning);
- tmp &= ~0x00ff0000;
- tmp |= 0x003f0000; /* set burst pre load count to 0x40 (63 * 4 bytes) */
- tmp |= 0x16; /* set sheduler overhead to 22 * 1.267us (HS) or 22 * 6.33us (FS/LS)*/
- ehci_writel(ehci, tmp, &ehci->regs->txfill_tuning);
-
- tmp = ehci_readl(ehci, &ehci->regs->txttfill_tuning);
- tmp |= 0x2; /* set sheduler overhead to 2 * 6.333us */
- ehci_writel(ehci, tmp, &ehci->regs->txttfill_tuning);
-
- return retval;
-}
-
-static int ehci_oxnas_drv_probe(struct platform_device *ofdev)
-{
- struct device_node *np = ofdev->dev.of_node;
- struct usb_hcd *hcd;
- struct ehci_hcd *ehci;
- struct resource res;
- struct oxnas_hcd *oxnas;
- int irq, err;
- struct reset_control *rstc;
-
- if (usb_disabled())
- return -ENODEV;
-
- if (!ofdev->dev.dma_mask)
- ofdev->dev.dma_mask = &ofdev->dev.coherent_dma_mask;
- if (!ofdev->dev.coherent_dma_mask)
- ofdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
-
- hcd = usb_create_hcd(&oxnas_hc_driver, &ofdev->dev,
- dev_name(&ofdev->dev));
- if (!hcd)
- return -ENOMEM;
-
- err = of_address_to_resource(np, 0, &res);
- if (err)
- goto err_res;
-
- hcd->rsrc_start = res.start;
- hcd->rsrc_len = resource_size(&res);
-
- hcd->regs = devm_ioremap_resource(&ofdev->dev, &res);
- if (IS_ERR(hcd->regs)) {
- dev_err(&ofdev->dev, "devm_ioremap_resource failed\n");
- err = PTR_ERR(hcd->regs);
- goto err_ioremap;
- }
-
- oxnas = (struct oxnas_hcd *)hcd_to_ehci(hcd)->priv;
-
- oxnas->use_pllb = of_property_read_bool(np, "plxtech,ehci_use_pllb");
- oxnas->use_phya = of_property_read_bool(np, "plxtech,ehci_use_phya");
-
- oxnas->clk = of_clk_get_by_name(np, "usb");
- if (IS_ERR(oxnas->clk)) {
- err = PTR_ERR(oxnas->clk);
- goto err_clk;
- }
-
- if (oxnas->use_pllb) {
- oxnas->refsrc = of_clk_get_by_name(np, "refsrc");
- if (IS_ERR(oxnas->refsrc)) {
- err = PTR_ERR(oxnas->refsrc);
- goto err_refsrc;
- }
- oxnas->phyref = of_clk_get_by_name(np, "phyref");
- if (IS_ERR(oxnas->refsrc)) {
- err = PTR_ERR(oxnas->refsrc);
- goto err_phyref;
- }
-
- } else {
- oxnas->refsrc = NULL;
- oxnas->phyref = NULL;
- }
-
- rstc = devm_reset_control_get(&ofdev->dev, "host");
- if (IS_ERR(rstc)) {
- err = PTR_ERR(rstc);
- goto err_rst;
- }
- oxnas->rst_host = rstc;
-
- rstc = devm_reset_control_get(&ofdev->dev, "phya");
- if (IS_ERR(rstc)) {
- err = PTR_ERR(rstc);
- goto err_rst;
- }
- oxnas->rst_phya = rstc;
-
- rstc = devm_reset_control_get(&ofdev->dev, "phyb");
- if (IS_ERR(rstc)) {
- err = PTR_ERR(rstc);
- goto err_rst;
- }
- oxnas->rst_phyb = rstc;
-
- irq = irq_of_parse_and_map(np, 0);
- if (!irq) {
- dev_err(&ofdev->dev, "irq_of_parse_and_map failed\n");
- err = -EBUSY;
- goto err_irq;
- }
-
- hcd->has_tt = 1;
- ehci = hcd_to_ehci(hcd);
- ehci->caps = hcd->regs;
-
- start_oxnas_usb_ehci(oxnas);
-
- err = usb_add_hcd(hcd, irq, IRQF_SHARED);
- if (err)
- goto err_hcd;
-
- return 0;
-
-err_hcd:
- stop_oxnas_usb_ehci(oxnas);
-err_irq:
-err_rst:
- if (oxnas->phyref)
- clk_put(oxnas->phyref);
-err_phyref:
- if (oxnas->refsrc)
- clk_put(oxnas->refsrc);
-err_refsrc:
- clk_put(oxnas->clk);
-err_clk:
-err_ioremap:
-err_res:
- usb_put_hcd(hcd);
-
- return err;
-}
-
-static int ehci_oxnas_drv_remove(struct platform_device *pdev)
-{
- struct usb_hcd *hcd = platform_get_drvdata(pdev);
- struct oxnas_hcd *oxnas = (struct oxnas_hcd *)hcd_to_ehci(hcd)->priv;
-
- usb_remove_hcd(hcd);
- if (oxnas->use_pllb) {
- clk_disable_unprepare(oxnas->phyref);
- clk_put(oxnas->phyref);
- clk_disable_unprepare(oxnas->refsrc);
- clk_put(oxnas->refsrc);
- }
- clk_disable_unprepare(oxnas->clk);
- usb_put_hcd(hcd);
-
- return 0;
-}
-
-static const struct of_device_id oxnas_ehci_dt_ids[] = {
- { .compatible = "plxtech,nas782x-ehci" },
- { /* sentinel */ }
-};
-
-MODULE_DEVICE_TABLE(of, oxnas_ehci_dt_ids);
-
-static struct platform_driver ehci_oxnas_driver = {
- .probe = ehci_oxnas_drv_probe,
- .remove = ehci_oxnas_drv_remove,
- .shutdown = usb_hcd_platform_shutdown,
- .driver.name = "oxnas-ehci",
- .driver.of_match_table = oxnas_ehci_dt_ids,
-};
-
-static const struct ehci_driver_overrides oxnas_overrides __initconst = {
- .reset = ehci_oxnas_reset,
- .extra_priv_size = sizeof(struct oxnas_hcd),
-};
-
-static int __init ehci_oxnas_init(void)
-{
- if (usb_disabled())
- return -ENODEV;
-
- ehci_init_driver(&oxnas_hc_driver, &oxnas_overrides);
- return platform_driver_register(&ehci_oxnas_driver);
-}
-module_init(ehci_oxnas_init);
-
-static void __exit ehci_oxnas_cleanup(void)
-{
- platform_driver_unregister(&ehci_oxnas_driver);
-}
-module_exit(ehci_oxnas_cleanup);
-
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_ALIAS("platform:oxnas-ehci");
-MODULE_LICENSE("GPL");