RE: [PATCH 2/5 v5] OMAP3xxx: hwmod data: Add USBOTG

[Hema Kalliguddi <hemahk-l0cyMroinI0@public.gmane.org>]

Hi,

>-----Original Message-----
>From: Hema HK [mailto:hemahk-l0cyMroinI0@public.gmane.org]
>Sent: Friday, December 10, 2010 8:06 PM
>To: linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>Cc: linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org; Hema HK; Felipe Balbi; Tony
>Lindgren; Kevin Hilman; Cousson, Benoit; Paul Walmsley
>Subject: [PATCH 2/5 v5] OMAP3xxx: hwmod data: Add USBOTG
>
>OMAP3 hwmod data structures are populated for USBOTG with base address,
>L3 and L4 interface clocks, IRQs and sysconfig register details.
>
>As per OMAP USBOTG specification, need to configure the USBOTG
>to smart idle/standby or no idle/standby during data transfer and
>force idle/standby when not in use to support retention and offmode.
>By setting HWMOD_SWSUP_SIDLE and HWMOD_SWSUP_MSTANDBY flags, framework
>will take care of configuring to no idle/standby when module is enabled
>and force idle/standby when idled.
>
>Signed-off-by: Hema HK <hemahk-l0cyMroinI0@public.gmane.org>
>Cc: Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org>
>Cc: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
>Cc: Kevin Hilman <khilman-1D3HCaltpLuhEniVeURVKkEOCMrvLtNR@public.gmane.org>
>Cc: Cousson, Benoit <b-cousson-l0cyMroinI0@public.gmane.org>
>Cc: Paul Walmsley <paul-DWxLp4Yu+b8AvxtiuMwx3w@public.gmane.org>
>---
> arch/arm/mach-omap2/omap_hwmod_3xxx_data.c |  100
>+++++++++++++++++++++++++++++
> 1 file changed, 100 insertions(+)
>
>Index: usb/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
>===================================================================
>--- usb.orig/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
>+++ usb/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
>@@ -89,6 +89,15 @@ static struct omap_hwmod omap3xxx_uart1_
> static struct omap_hwmod omap3xxx_uart2_hwmod;
> static struct omap_hwmod omap3xxx_uart3_hwmod;
> static struct omap_hwmod omap3xxx_uart4_hwmod;
>+static struct omap_hwmod omap3xxx_usbhsotg_hwmod;
>+
>+/* l3_core -> usbhsotg interface */
>+static struct omap_hwmod_ocp_if omap3xxx_usbhsotg__l3 = {
>+	.master		= &omap3xxx_usbhsotg_hwmod,
>+	.slave		= &omap3xxx_l3_main_hwmod,
>+	.clk		= "core_l3_ick",
>+	.user		= OCP_USER_MPU,
>+};
>
> /* L4_CORE -> L4_WKUP interface */
> static struct omap_hwmod_ocp_if omap3xxx_l4_core__l4_wkup = {
>@@ -169,6 +178,36 @@ static struct omap_hwmod_ocp_if omap3_l4
> 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
> };
>
>+/*
>+* usbhsotg interface data
>+*/
>+
>+static struct omap_hwmod_addr_space omap3xxx_usbhsotg_addrs[] = {
>+	{
>+		.pa_start	= OMAP34XX_HSUSB_OTG_BASE,
>+		.pa_end		= OMAP34XX_HSUSB_OTG_BASE + SZ_4K - 1,
>+		.flags		= ADDR_TYPE_RT
>+	},
>+};
>+
>+/* l4_core -> usbhsotg  */
>+static struct omap_hwmod_ocp_if omap3xxx_l4_core__usbhsotg = {
>+	.master		= &omap3xxx_l4_core_hwmod,
>+	.slave		= &omap3xxx_usbhsotg_hwmod,
>+	.clk		= "l4_ick",
>+	.addr		= omap3xxx_usbhsotg_addrs,
>+	.addr_cnt	= ARRAY_SIZE(omap3xxx_usbhsotg_addrs),
>+	.user		= OCP_USER_MPU,
>+};
>+
>+static struct omap_hwmod_ocp_if *omap3xxx_usbhsotg_masters[] = {
>+	&omap3xxx_usbhsotg__l3,
>+};
>+
>+static struct omap_hwmod_ocp_if *omap3xxx_usbhsotg_slaves[] = {
>+	&omap3xxx_l4_core__usbhsotg,
>+};
>+
> /* Slave interfaces on the L4_CORE interconnect */
> static struct omap_hwmod_ocp_if *omap3xxx_l4_core_slaves[] = {
> 	&omap3xxx_l3_main__l4_core,
>@@ -509,6 +548,64 @@ static struct omap_hwmod omap3xxx_uart4_
> 	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP3630ES1),
> };
>
>+/*
>+ * usbhsotg
>+ */
>+static struct omap_hwmod_class_sysconfig omap3xxx_usbhsotg_sysc = {
>+	.rev_offs	= 0x0400,
>+	.sysc_offs	= 0x0404,
>+	.syss_offs	= 0x0408,
>+	.sysc_flags	= (SYSC_HAS_SIDLEMODE | SYSC_HAS_MIDLEMODE|
>+			  SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET |
>+			  SYSC_HAS_AUTOIDLE),
>+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
>+			  MSTANDBY_FORCE | MSTANDBY_NO |
>MSTANDBY_SMART),
>+	.sysc_fields	= &omap_hwmod_sysc_type1,
>+};
>+
>+static struct omap_hwmod_class usbotg_class = {
>+	.name = "usbotg",
>+	.sysc = &omap3xxx_usbhsotg_sysc,
>+};
>+
>+/* usb_otg_hs */
>+static struct omap_hwmod_irq_info omap3xxx_usbhsotg_mpu_irqs[] = {
>+
>+	{ .name = "mc", .irq = 92 },
>+	{ .name = "dma", .irq = 93 },
>+};
>+
>+static struct omap_hwmod omap3xxx_usbhsotg_hwmod = {
>+	.name		= "usb_otg_hs",
>+	.mpu_irqs	= omap3xxx_usbhsotg_mpu_irqs,
>+	.mpu_irqs_cnt	= ARRAY_SIZE(omap3xxx_usbhsotg_mpu_irqs),
>+	.main_clk	= "hsotgusb_ick",
>+	.prcm		= {
>+		.omap2 = {
>+			.prcm_reg_id = 1,
>+			.module_bit = OMAP3430_EN_HSOTGUSB_SHIFT,
>+			.module_offs = CORE_MOD,
>+			.idlest_reg_id = 1,
>+			.idlest_idle_bit =
>OMAP3430ES2_ST_HSOTGUSB_IDLE_SHIFT,
>+			.idlest_stdby_bit =
>OMAP3430ES2_ST_HSOTGUSB_STDBY_SHIFT
>+		},
>+	},
>+	.masters	= omap3xxx_usbhsotg_masters,
>+	.masters_cnt	= ARRAY_SIZE(omap3xxx_usbhsotg_masters),
>+	.slaves		= omap3xxx_usbhsotg_slaves,
>+	.slaves_cnt	= ARRAY_SIZE(omap3xxx_usbhsotg_slaves),
>+	.class		= &usbotg_class,
>+
>+	/*
>+	 * Erratum ID: i479  idle_req / idle_ack mechanism potentially
>+	 * broken when autoidle is enabled
>+	 * workaround is to disable the autoidle bit at module level.
>+	 */
>+	.flags		= HWMOD_NO_OCP_AUTOIDLE | HWMOD_SWSUP_SIDLE
>+				| HWMOD_SWSUP_MSTANDBY,
>+	.omap_chip	= OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
>+};
>+
> static __initdata struct omap_hwmod *omap3xxx_hwmods[] = {
> 	&omap3xxx_l3_main_hwmod,
> 	&omap3xxx_l4_core_hwmod,
>@@ -521,6 +618,9 @@ static __initdata struct omap_hwmod *oma
> 	&omap3xxx_uart2_hwmod,
> 	&omap3xxx_uart3_hwmod,
> 	&omap3xxx_uart4_hwmod,
>+
>+	/* usbotg class */
>+	&omap3xxx_usbhsotg_hwmod,
> 	NULL,
> };
>
>
Any comments?

Regards,
Hema
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