ARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP3

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>

1 files changed, 221 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
index 3be90feca77..905fc44ae90 100644
--- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
@@ -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
 };