Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756950Ab3E0IDh (ORCPT ); Mon, 27 May 2013 04:03:37 -0400 Received: from devils.ext.ti.com ([198.47.26.153]:50845 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754364Ab3E0IDe (ORCPT ); Mon, 27 May 2013 04:03:34 -0400 From: George Cherian To: CC: , , , , George Cherian Subject: [PATCH 2/3] usb: dwc3: omap: Intialize the register offset values for OMAP5 and AM437x Date: Mon, 27 May 2013 13:32:56 +0530 Message-ID: <1369641777-4509-3-git-send-email-george.cherian@ti.com> X-Mailer: git-send-email 1.8.1 In-Reply-To: <1369641777-4509-1-git-send-email-george.cherian@ti.com> References: <1369641777-4509-1-git-send-email-george.cherian@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3475 Lines: 103 This patch Initializes the register offset values depending on the X_MAJOR of USBOTGSS_REVISION register. Also adds register offset defines and new debug register defines. X_MAJOR is 1 for OMAP5 and 2 for AM437x. Register offsets are cached in dwc3_omap struct for reg reads and writes. Signed-off-by: George Cherian --- drivers/usb/dwc3/dwc3-omap.c | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c index a354b4c..e9e9b58a 100644 --- a/drivers/usb/dwc3/dwc3-omap.c +++ b/drivers/usb/dwc3/dwc3-omap.c @@ -61,21 +61,38 @@ #define USBOTGSS_REVISION 0x0000 #define USBOTGSS_SYSCONFIG 0x0010 #define USBOTGSS_IRQ_EOI 0x0020 +#define USBOTGSS_EOI_OFFSET 0x0008 #define USBOTGSS_IRQSTATUS_RAW_0 0x0024 #define USBOTGSS_IRQSTATUS_0 0x0028 #define USBOTGSS_IRQENABLE_SET_0 0x002c #define USBOTGSS_IRQENABLE_CLR_0 0x0030 +#define USBOTGSS_IRQ0_OFFSET 0x0004 #define USBOTGSS_IRQSTATUS_RAW_1 0x0034 #define USBOTGSS_IRQSTATUS_1 0x0038 #define USBOTGSS_IRQENABLE_SET_1 0x003c #define USBOTGSS_IRQENABLE_CLR_1 0x0040 +#define USBOTGSS_IRQSTATUS_EOI_MISC 0x0030 +#define USBOTGSS_IRQSTATUS_RAW_MISC 0x0034 +#define USBOTGSS_IRQSTATUS_MISC 0x0038 +#define USBOTGSS_IRQENABLE_SET_MISC 0x003c +#define USBOTGSS_IRQENABLE_CLR_MISC 0x0040 +#define USBOTGSS_IRQMISC_OFFSET 0x03fc #define USBOTGSS_UTMI_OTG_CTRL 0x0080 #define USBOTGSS_UTMI_OTG_STATUS 0x0084 +#define USBOTGSS_UTMI_OTG_OFFSET 0x0480 +#define USBOTGSS_TXFIFO_DEPTH 0x0508 +#define USBOTGSS_RXFIFO_DEPTH 0x050c #define USBOTGSS_MMRAM_OFFSET 0x0100 #define USBOTGSS_FLADJ 0x0104 #define USBOTGSS_DEBUG_CFG 0x0108 #define USBOTGSS_DEBUG_DATA 0x010c +#define USBOTGSS_DEV_EBC_EN 0x0110 +#define USBOTGSS_DEBUG_OFFSET 0x0600 +/* REVISION REGISTER */ +#define USBOTGSS_REVISION_XMAJOR(reg) ((reg >> 8) & 0x7) +#define USBOTGSS_REVISION_XMAJOR1 1 +#define USBOTGSS_REVISION_XMAJOR2 2 /* SYSCONFIG REGISTER */ #define USBOTGSS_SYSCONFIG_DMADISABLE (1 << 16) @@ -300,6 +317,7 @@ static int dwc3_omap_probe(struct platform_device *pdev) int irq; int utmi_mode = 0; + int x_major; u32 reg; @@ -356,6 +374,31 @@ static int dwc3_omap_probe(struct platform_device *pdev) return ret; } + reg = dwc3_omap_readl(omap->base, USBOTGSS_REVISION); + omap->revision = reg; + x_major = USBOTGSS_REVISION_XMAJOR(reg); + + /* Differentiate between OMAP5 and AM437x */ + switch (x_major) { + case USBOTGSS_REVISION_XMAJOR1: + omap->irq_eoi_offset = 0; + omap->irq0_offset = 0; + omap->irqmisc_offset = 0; + omap->utmi_otg_offset = 0; + omap->debug_offset = 0; + break; + case USBOTGSS_REVISION_XMAJOR2: + /* FALLTHROUGH */ + default: + /* Default to the latest revision */ + omap->irq_eoi_offset = USBOTGSS_EOI_OFFSET; + omap->irq0_offset = USBOTGSS_IRQ0_OFFSET; + omap->irqmisc_offset = USBOTGSS_IRQMISC_OFFSET; + omap->utmi_otg_offset = USBOTGSS_UTMI_OTG_OFFSET; + omap->debug_offset = USBOTGSS_DEBUG_OFFSET; + break; + } + reg = dwc3_omap_readl(omap->base, USBOTGSS_UTMI_OTG_STATUS); of_property_read_u32(node, "utmi-mode", &utmi_mode); -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/