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Diffstat (limited to 'arch/arm/mach-omap2/usb-musb.c')
-rw-r--r--arch/arm/mach-omap2/usb-musb.c207
1 files changed, 49 insertions, 158 deletions
diff --git a/arch/arm/mach-omap2/usb-musb.c b/arch/arm/mach-omap2/usb-musb.c
index 5298949d4b1..bc897231bd1 100644
--- a/arch/arm/mach-omap2/usb-musb.c
+++ b/arch/arm/mach-omap2/usb-musb.c
@@ -23,124 +23,12 @@
#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/io.h>
-
#include <linux/usb/musb.h>
-#include <mach/hardware.h>
-#include <mach/irqs.h>
-#include <mach/am35xx.h>
-#include <plat/usb.h>
-#include "control.h"
-
-#if defined(CONFIG_USB_MUSB_OMAP2PLUS) || defined (CONFIG_USB_MUSB_AM35X)
-
-static void am35x_musb_reset(void)
-{
- u32 regval;
-
- /* Reset the musb interface */
- regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
-
- regval |= AM35XX_USBOTGSS_SW_RST;
- omap_ctrl_writel(regval, AM35XX_CONTROL_IP_SW_RESET);
-
- regval &= ~AM35XX_USBOTGSS_SW_RST;
- omap_ctrl_writel(regval, AM35XX_CONTROL_IP_SW_RESET);
-
- regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
-}
-
-static void am35x_musb_phy_power(u8 on)
-{
- unsigned long timeout = jiffies + msecs_to_jiffies(100);
- u32 devconf2;
-
- if (on) {
- /*
- * Start the on-chip PHY and its PLL.
- */
- devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
-
- devconf2 &= ~(CONF2_RESET | CONF2_PHYPWRDN | CONF2_OTGPWRDN);
- devconf2 |= CONF2_PHY_PLLON;
-
- omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
-
- pr_info(KERN_INFO "Waiting for PHY clock good...\n");
- while (!(omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2)
- & CONF2_PHYCLKGD)) {
- cpu_relax();
-
- if (time_after(jiffies, timeout)) {
- pr_err(KERN_ERR "musb PHY clock good timed out\n");
- break;
- }
- }
- } else {
- /*
- * Power down the on-chip PHY.
- */
- devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
-
- devconf2 &= ~CONF2_PHY_PLLON;
- devconf2 |= CONF2_PHYPWRDN | CONF2_OTGPWRDN;
- omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
- }
-}
-
-static void am35x_musb_clear_irq(void)
-{
- u32 regval;
-
- regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
- regval |= AM35XX_USBOTGSS_INT_CLR;
- omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
- regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
-}
-
-static void am35x_musb_set_mode(u8 musb_mode)
-{
- u32 devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
-
- devconf2 &= ~CONF2_OTGMODE;
- switch (musb_mode) {
-#ifdef CONFIG_USB_MUSB_HDRC_HCD
- case MUSB_HOST: /* Force VBUS valid, ID = 0 */
- devconf2 |= CONF2_FORCE_HOST;
- break;
-#endif
-#ifdef CONFIG_USB_GADGET_MUSB_HDRC
- case MUSB_PERIPHERAL: /* Force VBUS valid, ID = 1 */
- devconf2 |= CONF2_FORCE_DEVICE;
- break;
-#endif
-#ifdef CONFIG_USB_MUSB_OTG
- case MUSB_OTG: /* Don't override the VBUS/ID comparators */
- devconf2 |= CONF2_NO_OVERRIDE;
- break;
-#endif
- default:
- pr_info(KERN_INFO "Unsupported mode %u\n", musb_mode);
- }
-
- omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
-}
-
-static struct resource musb_resources[] = {
- [0] = { /* start and end set dynamically */
- .flags = IORESOURCE_MEM,
- },
- [1] = { /* general IRQ */
- .start = INT_243X_HS_USB_MC,
- .flags = IORESOURCE_IRQ,
- .name = "mc",
- },
- [2] = { /* DMA IRQ */
- .start = INT_243X_HS_USB_DMA,
- .flags = IORESOURCE_IRQ,
- .name = "dma",
- },
-};
+#include "omap_device.h"
+#include "soc.h"
+#include "mux.h"
+#include "usb.h"
static struct musb_hdrc_config musb_config = {
.multipoint = 1,
@@ -150,13 +38,8 @@ static struct musb_hdrc_config musb_config = {
};
static struct musb_hdrc_platform_data musb_plat = {
-#ifdef CONFIG_USB_MUSB_OTG
.mode = MUSB_OTG,
-#elif defined(CONFIG_USB_MUSB_HDRC_HCD)
- .mode = MUSB_HOST,
-#elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
- .mode = MUSB_PERIPHERAL,
-#endif
+
/* .clock is set dynamically */
.config = &musb_config,
@@ -169,38 +52,25 @@ static struct musb_hdrc_platform_data musb_plat = {
static u64 musb_dmamask = DMA_BIT_MASK(32);
-static struct platform_device musb_device = {
- .name = "musb-omap2430",
- .id = -1,
- .dev = {
- .dma_mask = &musb_dmamask,
- .coherent_dma_mask = DMA_BIT_MASK(32),
- .platform_data = &musb_plat,
- },
- .num_resources = ARRAY_SIZE(musb_resources),
- .resource = musb_resources,
+static struct omap_musb_board_data musb_default_board_data = {
+ .interface_type = MUSB_INTERFACE_ULPI,
+ .mode = MUSB_OTG,
+ .power = 100,
};
-void __init usb_musb_init(struct omap_musb_board_data *board_data)
+void __init usb_musb_init(struct omap_musb_board_data *musb_board_data)
{
- if (cpu_is_omap243x()) {
- musb_resources[0].start = OMAP243X_HS_BASE;
- } else if (cpu_is_omap3517() || cpu_is_omap3505()) {
- musb_device.name = "musb-am35x";
- musb_resources[0].start = AM35XX_IPSS_USBOTGSS_BASE;
- musb_resources[1].start = INT_35XX_USBOTG_IRQ;
- board_data->set_phy_power = am35x_musb_phy_power;
- board_data->clear_irq = am35x_musb_clear_irq;
- board_data->set_mode = am35x_musb_set_mode;
- board_data->reset = am35x_musb_reset;
- } else if (cpu_is_omap34xx()) {
- musb_resources[0].start = OMAP34XX_HSUSB_OTG_BASE;
- } else if (cpu_is_omap44xx()) {
- musb_resources[0].start = OMAP44XX_HSUSB_OTG_BASE;
- musb_resources[1].start = OMAP44XX_IRQ_HS_USB_MC_N;
- musb_resources[2].start = OMAP44XX_IRQ_HS_USB_DMA_N;
- }
- musb_resources[0].end = musb_resources[0].start + SZ_4K - 1;
+ struct omap_hwmod *oh;
+ struct platform_device *pdev;
+ struct device *dev;
+ int bus_id = -1;
+ const char *oh_name, *name;
+ struct omap_musb_board_data *board_data;
+
+ if (musb_board_data)
+ board_data = musb_board_data;
+ else
+ board_data = &musb_default_board_data;
/*
* REVISIT: This line can be removed once all the platforms using
@@ -212,12 +82,33 @@ void __init usb_musb_init(struct omap_musb_board_data *board_data)
musb_plat.mode = board_data->mode;
musb_plat.extvbus = board_data->extvbus;
- if (platform_device_register(&musb_device) < 0)
- printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n");
-}
+ if (soc_is_am35xx()) {
+ oh_name = "am35x_otg_hs";
+ name = "musb-am35x";
+ } else if (cpu_is_ti81xx()) {
+ oh_name = "usb_otg_hs";
+ name = "musb-ti81xx";
+ } else {
+ oh_name = "usb_otg_hs";
+ name = "musb-omap2430";
+ }
-#else
-void __init usb_musb_init(struct omap_musb_board_data *board_data)
-{
+ oh = omap_hwmod_lookup(oh_name);
+ if (WARN(!oh, "%s: could not find omap_hwmod for %s\n",
+ __func__, oh_name))
+ return;
+
+ pdev = omap_device_build(name, bus_id, oh, &musb_plat,
+ sizeof(musb_plat));
+ if (IS_ERR(pdev)) {
+ pr_err("Could not build omap_device for %s %s\n",
+ name, oh_name);
+ return;
+ }
+
+ dev = &pdev->dev;
+ get_device(dev);
+ dev->dma_mask = &musb_dmamask;
+ dev->coherent_dma_mask = musb_dmamask;
+ put_device(dev);
}
-#endif /* CONFIG_USB_MUSB_SOC */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 18:57:22 +0000