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Message-Id: <20221024153814.254652-2-arnd@kernel.org>
Date: Mon, 24 Oct 2022 17:38:05 +0200
From: Arnd Bergmann <arnd@...nel.org>
To: Tony Lindgren <tony@...mide.com>, linux-omap@...r.kernel.org
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
Arnd Bergmann <arnd@...db.de>
Subject: [PATCH 01/10] ARM: omap2: remove unused USB code
From: Arnd Bergmann <arnd@...db.de>
Some musb related code is no longer in use after commit 4d62dbda8561
("ARM: OMAP3: Remove legacy support for am3517-evm") and can be removed.
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
arch/arm/mach-omap2/common.h | 2 -
arch/arm/mach-omap2/omap_phy_internal.c | 87 -------------------------
arch/arm/mach-omap2/usb.h | 71 --------------------
3 files changed, 160 deletions(-)
delete mode 100644 arch/arm/mach-omap2/usb.h
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index bd5981945239..f8f9cc5b6964 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -40,8 +40,6 @@
#include "i2c.h"
#include "serial.h"
-#include "usb.h"
-
#define OMAP_INTC_START NR_IRQS
extern int (*omap_pm_soc_init)(void);
diff --git a/arch/arm/mach-omap2/omap_phy_internal.c b/arch/arm/mach-omap2/omap_phy_internal.c
index 6f6a6a66c981..21c6e7929d37 100644
--- a/arch/arm/mach-omap2/omap_phy_internal.c
+++ b/arch/arm/mach-omap2/omap_phy_internal.c
@@ -19,7 +19,6 @@
#include "soc.h"
#include "control.h"
-#include "usb.h"
#define CONTROL_DEV_CONF 0x300
#define PHY_PD 0x1
@@ -52,89 +51,3 @@ static int __init omap4430_phy_power_down(void)
return 0;
}
omap_early_initcall(omap4430_phy_power_down);
-
-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);
-}
-
-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("Waiting for PHY clock good...\n");
- while (!(omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2)
- & CONF2_PHYCLKGD)) {
- cpu_relax();
-
- if (time_after(jiffies, timeout)) {
- pr_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);
- }
-}
-
-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);
-}
-
-void am35x_set_mode(u8 musb_mode)
-{
- u32 devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
-
- devconf2 &= ~CONF2_OTGMODE;
- switch (musb_mode) {
- case MUSB_HOST: /* Force VBUS valid, ID = 0 */
- devconf2 |= CONF2_FORCE_HOST;
- break;
- case MUSB_PERIPHERAL: /* Force VBUS valid, ID = 1 */
- devconf2 |= CONF2_FORCE_DEVICE;
- break;
- case MUSB_OTG: /* Don't override the VBUS/ID comparators */
- devconf2 |= CONF2_NO_OVERRIDE;
- break;
- default:
- pr_info("Unsupported mode %u\n", musb_mode);
- }
-
- omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
-}
diff --git a/arch/arm/mach-omap2/usb.h b/arch/arm/mach-omap2/usb.h
deleted file mode 100644
index 740a499befce..000000000000
--- a/arch/arm/mach-omap2/usb.h
+++ /dev/null
@@ -1,71 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <linux/platform_data/usb-omap.h>
-
-/* AM35x */
-/* USB 2.0 PHY Control */
-#define CONF2_PHY_GPIOMODE (1 << 23)
-#define CONF2_OTGMODE (3 << 14)
-#define CONF2_NO_OVERRIDE (0 << 14)
-#define CONF2_FORCE_HOST (1 << 14)
-#define CONF2_FORCE_DEVICE (2 << 14)
-#define CONF2_FORCE_HOST_VBUS_LOW (3 << 14)
-#define CONF2_SESENDEN (1 << 13)
-#define CONF2_VBDTCTEN (1 << 12)
-#define CONF2_REFFREQ_24MHZ (2 << 8)
-#define CONF2_REFFREQ_26MHZ (7 << 8)
-#define CONF2_REFFREQ_13MHZ (6 << 8)
-#define CONF2_REFFREQ (0xf << 8)
-#define CONF2_PHYCLKGD (1 << 7)
-#define CONF2_VBUSSENSE (1 << 6)
-#define CONF2_PHY_PLLON (1 << 5)
-#define CONF2_RESET (1 << 4)
-#define CONF2_PHYPWRDN (1 << 3)
-#define CONF2_OTGPWRDN (1 << 2)
-#define CONF2_DATPOL (1 << 1)
-
-/* TI81XX specific definitions */
-#define USBCTRL0 0x620
-#define USBSTAT0 0x624
-
-/* TI816X PHY controls bits */
-#define TI816X_USBPHY0_NORMAL_MODE (1 << 0)
-#define TI816X_USBPHY_REFCLK_OSC (1 << 8)
-
-/* TI814X PHY controls bits */
-#define USBPHY_CM_PWRDN (1 << 0)
-#define USBPHY_OTG_PWRDN (1 << 1)
-#define USBPHY_CHGDET_DIS (1 << 2)
-#define USBPHY_CHGDET_RSTRT (1 << 3)
-#define USBPHY_SRCONDM (1 << 4)
-#define USBPHY_SINKONDP (1 << 5)
-#define USBPHY_CHGISINK_EN (1 << 6)
-#define USBPHY_CHGVSRC_EN (1 << 7)
-#define USBPHY_DMPULLUP (1 << 8)
-#define USBPHY_DPPULLUP (1 << 9)
-#define USBPHY_CDET_EXTCTL (1 << 10)
-#define USBPHY_GPIO_MODE (1 << 12)
-#define USBPHY_DPOPBUFCTL (1 << 13)
-#define USBPHY_DMOPBUFCTL (1 << 14)
-#define USBPHY_DPINPUT (1 << 15)
-#define USBPHY_DMINPUT (1 << 16)
-#define USBPHY_DPGPIO_PD (1 << 17)
-#define USBPHY_DMGPIO_PD (1 << 18)
-#define USBPHY_OTGVDET_EN (1 << 19)
-#define USBPHY_OTGSESSEND_EN (1 << 20)
-#define USBPHY_DATA_POLARITY (1 << 23)
-
-struct usbhs_phy_data {
- int port; /* 1 indexed port number */
- int reset_gpio;
- int vcc_gpio;
- bool vcc_polarity; /* 1 active high, 0 active low */
-};
-
-extern void usb_musb_init(struct omap_musb_board_data *board_data);
-extern void usbhs_init(struct usbhs_omap_platform_data *pdata);
-extern int usbhs_init_phys(struct usbhs_phy_data *phy, int num_phys);
-
-extern void am35x_musb_reset(void);
-extern void am35x_musb_phy_power(u8 on);
-extern void am35x_musb_clear_irq(void);
-extern void am35x_set_mode(u8 musb_mode);
--
2.29.2
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