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ARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP3
authorKeshava Munegowda <keshava_mgowda@ti.com>
Fri, 16 Dec 2011 06:14:44 +0000 (23:14 -0700)
committerPaul Walmsley <paul@pwsan.com>
Fri, 16 Dec 2011 08:34:45 +0000 (01:34 -0700)
Following 2 hwmod structures are added
    1. usb_host_hs
         The hwmod of usbhs with uhh, ehci and ohci base addresses
         functional clock and ehci, ohci irqs

    2. usb_tll_hs
          hwmod of usbhs with the TLL base address and irq.

Signed-off-by: Keshava Munegowda <keshava_mgowda@ti.com>
Reviewed-by: Partha Basak <parthab@india.ti.com>
[paul@pwsan.com: fixed whitespace; removed nonexistent TLL->L3 interface;
 added master & slave for L4 CORE->TLL interface; skip registration on
 3430ES1; fixed multiline comment style; updated to apply on Tony's cleanup
 branch; rebased]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
arch/arm/mach-omap2/omap_hwmod_3xxx_data.c

index 3be90fe..905fc44 100644 (file)
@@ -84,6 +84,8 @@ static struct omap_hwmod omap3xxx_mcbsp4_hwmod;
 static struct omap_hwmod omap3xxx_mcbsp5_hwmod;
 static struct omap_hwmod omap3xxx_mcbsp2_sidetone_hwmod;
 static struct omap_hwmod omap3xxx_mcbsp3_sidetone_hwmod;
+static struct omap_hwmod omap3xxx_usb_host_hs_hwmod;
+static struct omap_hwmod omap3xxx_usb_tll_hs_hwmod;
 
 /* L3 -> L4_CORE interface */
 static struct omap_hwmod_ocp_if omap3xxx_l3_main__l4_core = {
@@ -3228,6 +3230,218 @@ static struct omap_hwmod omap3xxx_mmc3_hwmod = {
        .class          = &omap34xx_mmc_class,
 };
 
+/*
+ * 'usb_host_hs' class
+ * high-speed multi-port usb host controller
+ */
+static struct omap_hwmod_ocp_if omap3xxx_usb_host_hs__l3_main_2 = {
+       .master         = &omap3xxx_usb_host_hs_hwmod,
+       .slave          = &omap3xxx_l3_main_hwmod,
+       .clk            = "core_l3_ick",
+       .user           = OCP_USER_MPU,
+};
+
+static struct omap_hwmod_class_sysconfig omap3xxx_usb_host_hs_sysc = {
+       .rev_offs       = 0x0000,
+       .sysc_offs      = 0x0010,
+       .syss_offs      = 0x0014,
+       .sysc_flags     = (SYSC_HAS_MIDLEMODE | SYSC_HAS_CLOCKACTIVITY |
+                          SYSC_HAS_SIDLEMODE | 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 omap3xxx_usb_host_hs_hwmod_class = {
+       .name = "usb_host_hs",
+       .sysc = &omap3xxx_usb_host_hs_sysc,
+};
+
+static struct omap_hwmod_ocp_if *omap3xxx_usb_host_hs_masters[] = {
+       &omap3xxx_usb_host_hs__l3_main_2,
+};
+
+static struct omap_hwmod_addr_space omap3xxx_usb_host_hs_addrs[] = {
+       {
+               .name           = "uhh",
+               .pa_start       = 0x48064000,
+               .pa_end         = 0x480643ff,
+               .flags          = ADDR_TYPE_RT
+       },
+       {
+               .name           = "ohci",
+               .pa_start       = 0x48064400,
+               .pa_end         = 0x480647ff,
+       },
+       {
+               .name           = "ehci",
+               .pa_start       = 0x48064800,
+               .pa_end         = 0x48064cff,
+       },
+       {}
+};
+
+static struct omap_hwmod_ocp_if omap3xxx_l4_core__usb_host_hs = {
+       .master         = &omap3xxx_l4_core_hwmod,
+       .slave          = &omap3xxx_usb_host_hs_hwmod,
+       .clk            = "usbhost_ick",
+       .addr           = omap3xxx_usb_host_hs_addrs,
+       .user           = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+static struct omap_hwmod_ocp_if *omap3xxx_usb_host_hs_slaves[] = {
+       &omap3xxx_l4_core__usb_host_hs,
+};
+
+static struct omap_hwmod_opt_clk omap3xxx_usb_host_hs_opt_clks[] = {
+         { .role = "ehci_logic_fck", .clk = "usbhost_120m_fck", },
+};
+
+static struct omap_hwmod_irq_info omap3xxx_usb_host_hs_irqs[] = {
+       { .name = "ohci-irq", .irq = 76 },
+       { .name = "ehci-irq", .irq = 77 },
+       { .irq = -1 }
+};
+
+static struct omap_hwmod omap3xxx_usb_host_hs_hwmod = {
+       .name           = "usb_host_hs",
+       .class          = &omap3xxx_usb_host_hs_hwmod_class,
+       .clkdm_name     = "l3_init_clkdm",
+       .mpu_irqs       = omap3xxx_usb_host_hs_irqs,
+       .main_clk       = "usbhost_48m_fck",
+       .prcm = {
+               .omap2 = {
+                       .module_offs = OMAP3430ES2_USBHOST_MOD,
+                       .prcm_reg_id = 1,
+                       .module_bit = OMAP3430ES2_EN_USBHOST1_SHIFT,
+                       .idlest_reg_id = 1,
+                       .idlest_idle_bit = OMAP3430ES2_ST_USBHOST_IDLE_SHIFT,
+                       .idlest_stdby_bit = OMAP3430ES2_ST_USBHOST_STDBY_SHIFT,
+               },
+       },
+       .opt_clks       = omap3xxx_usb_host_hs_opt_clks,
+       .opt_clks_cnt   = ARRAY_SIZE(omap3xxx_usb_host_hs_opt_clks),
+       .slaves         = omap3xxx_usb_host_hs_slaves,
+       .slaves_cnt     = ARRAY_SIZE(omap3xxx_usb_host_hs_slaves),
+       .masters        = omap3xxx_usb_host_hs_masters,
+       .masters_cnt    = ARRAY_SIZE(omap3xxx_usb_host_hs_masters),
+
+       /*
+        * Errata: USBHOST Configured In Smart-Idle Can Lead To a Deadlock
+        * id: i660
+        *
+        * Description:
+        * In the following configuration :
+        * - USBHOST module is set to smart-idle mode
+        * - PRCM asserts idle_req to the USBHOST module ( This typically
+        *   happens when the system is going to a low power mode : all ports
+        *   have been suspended, the master part of the USBHOST module has
+        *   entered the standby state, and SW has cut the functional clocks)
+        * - an USBHOST interrupt occurs before the module is able to answer
+        *   idle_ack, typically a remote wakeup IRQ.
+        * Then the USB HOST module will enter a deadlock situation where it
+        * is no more accessible nor functional.
+        *
+        * Workaround:
+        * Don't use smart idle; use only force idle, hence HWMOD_SWSUP_SIDLE
+        */
+
+       /*
+        * Errata: USB host EHCI may stall when entering smart-standby mode
+        * Id: i571
+        *
+        * Description:
+        * When the USBHOST module is set to smart-standby mode, and when it is
+        * ready to enter the standby state (i.e. all ports are suspended and
+        * all attached devices are in suspend mode), then it can wrongly assert
+        * the Mstandby signal too early while there are still some residual OCP
+        * transactions ongoing. If this condition occurs, the internal state
+        * machine may go to an undefined state and the USB link may be stuck
+        * upon the next resume.
+        *
+        * Workaround:
+        * Don't use smart standby; use only force standby,
+        * hence HWMOD_SWSUP_MSTANDBY
+        */
+
+       /*
+        * During system boot; If the hwmod framework resets the module
+        * the module will have smart idle settings; which can lead to deadlock
+        * (above Errata Id:i660); so, dont reset the module during boot;
+        * Use HWMOD_INIT_NO_RESET.
+        */
+
+       .flags          = HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY |
+                         HWMOD_INIT_NO_RESET,
+};
+
+/*
+ * 'usb_tll_hs' class
+ * usb_tll_hs module is the adapter on the usb_host_hs ports
+ */
+static struct omap_hwmod_class_sysconfig omap3xxx_usb_tll_hs_sysc = {
+       .rev_offs       = 0x0000,
+       .sysc_offs      = 0x0010,
+       .syss_offs      = 0x0014,
+       .sysc_flags     = (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE |
+                          SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET |
+                          SYSC_HAS_AUTOIDLE),
+       .idlemodes      = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+       .sysc_fields    = &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class omap3xxx_usb_tll_hs_hwmod_class = {
+       .name = "usb_tll_hs",
+       .sysc = &omap3xxx_usb_tll_hs_sysc,
+};
+
+static struct omap_hwmod_irq_info omap3xxx_usb_tll_hs_irqs[] = {
+       { .name = "tll-irq", .irq = 78 },
+       { .irq = -1 }
+};
+
+static struct omap_hwmod_addr_space omap3xxx_usb_tll_hs_addrs[] = {
+       {
+               .name           = "tll",
+               .pa_start       = 0x48062000,
+               .pa_end         = 0x48062fff,
+               .flags          = ADDR_TYPE_RT
+       },
+       {}
+};
+
+static struct omap_hwmod_ocp_if omap3xxx_l4_core__usb_tll_hs = {
+       .master         = &omap3xxx_l4_core_hwmod,
+       .slave          = &omap3xxx_usb_tll_hs_hwmod,
+       .clk            = "usbtll_ick",
+       .addr           = omap3xxx_usb_tll_hs_addrs,
+       .user           = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+static struct omap_hwmod_ocp_if *omap3xxx_usb_tll_hs_slaves[] = {
+       &omap3xxx_l4_core__usb_tll_hs,
+};
+
+static struct omap_hwmod omap3xxx_usb_tll_hs_hwmod = {
+       .name           = "usb_tll_hs",
+       .class          = &omap3xxx_usb_tll_hs_hwmod_class,
+       .clkdm_name     = "l3_init_clkdm",
+       .mpu_irqs       = omap3xxx_usb_tll_hs_irqs,
+       .main_clk       = "usbtll_fck",
+       .prcm = {
+               .omap2 = {
+                       .module_offs = CORE_MOD,
+                       .prcm_reg_id = 3,
+                       .module_bit = OMAP3430ES2_EN_USBTLL_SHIFT,
+                       .idlest_reg_id = 3,
+                       .idlest_idle_bit = OMAP3430ES2_ST_USBTLL_SHIFT,
+               },
+       },
+       .slaves         = omap3xxx_usb_tll_hs_slaves,
+       .slaves_cnt     = ARRAY_SIZE(omap3xxx_usb_tll_hs_slaves),
+};
+
 static __initdata struct omap_hwmod *omap3xxx_hwmods[] = {
        &omap3xxx_l3_main_hwmod,
        &omap3xxx_l4_core_hwmod,
@@ -3254,6 +3468,7 @@ static __initdata struct omap_hwmod *omap3xxx_hwmods[] = {
        &omap3xxx_uart1_hwmod,
        &omap3xxx_uart2_hwmod,
        &omap3xxx_uart3_hwmod,
+
        /* dss class */
        &omap3xxx_dss_dispc_hwmod,
        &omap3xxx_dss_dsi1_hwmod,
@@ -3311,6 +3526,8 @@ static __initdata struct omap_hwmod *omap3430es1_hwmods[] = {
 static __initdata struct omap_hwmod *omap3430es2plus_hwmods[] = {
        &omap3xxx_dss_core_hwmod,
        &omap3xxx_usbhsotg_hwmod,
+       &omap3xxx_usb_host_hs_hwmod,
+       &omap3xxx_usb_tll_hs_hwmod,
        NULL
 };
 
@@ -3332,6 +3549,8 @@ static __initdata struct omap_hwmod *omap36xx_hwmods[] = {
        &omap36xx_sr2_hwmod,
        &omap3xxx_usbhsotg_hwmod,
        &omap3xxx_mailbox_hwmod,
+       &omap3xxx_usb_host_hs_hwmod,
+       &omap3xxx_usb_tll_hs_hwmod,
        NULL
 };
 
@@ -3339,6 +3558,8 @@ static __initdata struct omap_hwmod *am35xx_hwmods[] = {
        &omap3xxx_dss_core_hwmod, /* XXX ??? */
        &am35xx_usbhsotg_hwmod,
        &am35xx_uart4_hwmod,
+       &omap3xxx_usb_host_hs_hwmod,
+       &omap3xxx_usb_tll_hs_hwmod,
        NULL
 };