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    SubjectRe: [PATCH 1/5 v8] arm: omap: usb: ehci and ohci hwmod structures for omap4
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    On Wed, Sep 14, 2011 at 10:20 PM, Cousson, Benoit <b-cousson@ti.com> wrote:
    > Hi Keshava,
    >
    > On 8/25/2011 9:01 AM, Munegowda, Keshava wrote:
    >> From: Benoit Cousson<b-cousson@ti.com>
    >>
    >> Following 4 hwmod structures are added:
    >> UHH hwmod of usbhs with uhh base address and functional clock,
    >> EHCI hwmod with irq and base address,
    >> OHCI hwmod with irq and base address,
    >> TLL hwmod of usbhs with the TLL base address and irq.
    >>
    >> Signed-off-by: Benoit Cousson<b-cousson@ti.com>
    >
    > That version is really different compared to my original patch, so you should highlight the diff you introduced.
    >
    >> Signed-off-by: Keshava Munegowda<keshava_mgowda@ti.com>
    >> ---
    >>   arch/arm/mach-omap2/omap_hwmod_44xx_data.c |  247 ++++++++++++++++++++++++++++
    >>   1 files changed, 247 insertions(+), 0 deletions(-)
    >>
    >> diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
    >> index 6201422..0bc01dd 100644
    >> --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
    >> +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
    >> @@ -68,6 +68,10 @@ static struct omap_hwmod omap44xx_mmc2_hwmod;
    >>   static struct omap_hwmod omap44xx_mpu_hwmod;
    >>   static struct omap_hwmod omap44xx_mpu_private_hwmod;
    >>   static struct omap_hwmod omap44xx_usb_otg_hs_hwmod;
    >> +static struct omap_hwmod omap44xx_usb_host_hs_hwmod;
    >> +static struct omap_hwmod omap44xx_usbhs_ohci_hwmod;
    >> +static struct omap_hwmod omap44xx_usbhs_ehci_hwmod;
    >> +static struct omap_hwmod omap44xx_usb_tll_hs_hwmod;
    >
    > None of the 3 last entries are master, and thus should not need any backward declaration.
    >
    >>   /*
    >>    * Interconnects omap_hwmod structures
    >> @@ -5336,6 +5340,245 @@ static struct omap_hwmod omap44xx_wd_timer3_hwmod = {
    >>       .omap_chip      = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
    >>   };
    >>
    >> +/*
    >> + * 'usb_host_hs' class
    >> + * high-speed multi-port usb host controller
    >> + */
    >> +static struct omap_hwmod_ocp_if omap44xx_usb_host_hs__l3_main_2 = {
    >> +     .master         =&omap44xx_usb_host_hs_hwmod,
    >> +     .slave          =&omap44xx_l3_main_2_hwmod,
    >> +     .clk            = "l3_div_ck",
    >> +     .user           = OCP_USER_MPU | OCP_USER_SDMA,
    >> +};
    >> +
    >> +static struct omap_hwmod_class_sysconfig omap44xx_usb_host_hs_sysc = {
    >> +     .rev_offs       = 0x0000,
    >> +     .sysc_offs      = 0x0010,
    >> +     .syss_offs      = 0x0014,
    >> +     .sysc_flags     = (SYSC_HAS_MIDLEMODE | SYSC_HAS_SIDLEMODE),
    >> +     .idlemodes      = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
    >> +                             SIDLE_SMART_WKUP | MSTANDBY_FORCE |
    >> +                             MSTANDBY_NO | MSTANDBY_SMART |
    >> +                             MSTANDBY_SMART_WKUP),
    >
    > Minor, but it should be:
    > +       .idlemodes      = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
    > +                          SIDLE_SMART_WKUP | MSTANDBY_FORCE | MSTANDBY_NO |
    > +                          MSTANDBY_SMART | MSTANDBY_SMART_WKUP),
    >
    >> +     .sysc_fields    =&omap_hwmod_sysc_type2,
    >> +};
    >> +
    >> +static struct omap_hwmod_class omap44xx_usb_host_hs_hwmod_class = {
    >> +     .name = "usbhs_uhh",
    >> +     .sysc =&omap44xx_usb_host_hs_sysc,
    >> +};
    >> +
    >> +static struct omap_hwmod_ocp_if *omap44xx_usb_host_hs_masters[] = {
    >> +     &omap44xx_usb_host_hs__l3_main_2,
    >> +};
    >> +
    >> +static struct omap_hwmod_addr_space omap44xx_usb_host_hs_addrs[] = {
    >> +     {
    >> +             .name           = "uhh",
    >
    > In general, there is no name for unique entry. And if you need a name, you should find something relevant considering this is local to the hwmod.
    >
    >> +             .pa_start       = 0x4a064000,
    >> +             .pa_end         = 0x4a0647ff,
    >> +             .flags          = ADDR_TYPE_RT
    >> +     },
    >> +     {} /* Terminating Entry */
    >
    > That comment is useless. Paul added one space inside the terminator as well.
    >
    >> +};
    >> +
    >> +static struct omap_hwmod_ocp_if omap44xx_l4_cfg__usb_host_hs = {
    >> +     .master         =&omap44xx_l4_cfg_hwmod,
    >> +     .slave          =&omap44xx_usb_host_hs_hwmod,
    >> +     .clk            = "l4_div_ck",
    >> +     .addr           = omap44xx_usb_host_hs_addrs,
    >> +     .user           = OCP_USER_MPU | OCP_USER_SDMA,
    >> +};
    >> +
    >> +static struct omap_hwmod_ocp_if *omap44xx_usb_host_hs_slaves[] = {
    >> +     &omap44xx_l4_cfg__usb_host_hs,
    >> +};
    >> +
    >> +static struct omap_hwmod omap44xx_usb_host_hs_hwmod = {
    >> +     .name           = "usbhs_uhh",
    >> +     .class          =&omap44xx_usb_host_hs_hwmod_class,
    >> +     .clkdm_name     = "l3_init_clkdm",
    >> +     .main_clk       = "usb_host_hs_fck",
    >> +     .prcm = {
    >> +             .omap4 = {
    >> +                     .clkctrl_offs = OMAP4_CM_L3INIT_USB_HOST_CLKCTRL_OFFSET,
    >> +                     .context_offs = OMAP4_RM_L3INIT_USB_HOST_CONTEXT_OFFSET,
    >> +                     .modulemode   = MODULEMODE_SWCTRL,
    >> +             },
    >> +     },
    >> +     .slaves         = omap44xx_usb_host_hs_slaves,
    >> +     .slaves_cnt     = ARRAY_SIZE(omap44xx_usb_host_hs_slaves),
    >> +     .masters        = omap44xx_usb_host_hs_masters,
    >> +     .masters_cnt    = ARRAY_SIZE(omap44xx_usb_host_hs_masters),
    >> +     .flags          = HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY,
    >> +     .omap_chip      = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
    >> +};
    >> +
    >> +/* 'usbhs_ohci' class */
    >> +static struct omap_hwmod_class omap44xx_usbhs_ohci_hwmod_class = {
    >> +     .name = "usbhs_ohci",
    >
    > In the context of devicetree and considering what Felipe did for the USB3, I'm wondering if you should define hwmods for ohci and ehci.
    > I'm not 100% sure it will apply here, but cannot you add the register entries inside the usb_host_hs hwmod and create the devices using that?
    >
    > There is no PRCM entry for them so they do not need to be omap_device.
    >
    >> +};
    >> +
    >> +static struct omap_hwmod_irq_info omap44xx_usbhs_ohci_irqs[] = {
    >> +     { .name = "ohci-irq", .irq = 76 + OMAP44XX_IRQ_GIC_START },
    >
    > Same comment that before about address space name.
    >
    >> +     { .irq = -1 } /* Terminating IRQ */
    >> +};
    >> +
    >> +static struct omap_hwmod_addr_space omap44xx_usbhs_ohci_addrs[] = {
    >> +     {
    >> +             .name           = "ohci",
    >
    > Same comment than before.
    >
    >> +             .pa_start       = 0x4A064800,
    >> +             .pa_end         = 0x4A064BFF,
    >> +             .flags          = ADDR_MAP_ON_INIT
    >
    > Why do you need that flag?
    >
    >> +     },
    >> +     {}
    >> +};
    >> +
    >> +static struct omap_hwmod_ocp_if omap44xx_l4_cfg__usbhs_ohci = {
    >> +     .master         =&omap44xx_l4_cfg_hwmod,
    >> +     .slave          =&omap44xx_usbhs_ohci_hwmod,
    >> +     .clk            = "l4_div_ck",
    >> +     .addr           = omap44xx_usbhs_ohci_addrs,
    >> +     .user           = OCP_USER_MPU | OCP_USER_SDMA,
    >> +};
    >> +
    >> +static struct omap_hwmod_ocp_if *omap44xx_usbhs_ohci_slaves[] = {
    >> +     &omap44xx_l4_cfg__usbhs_ohci,
    >> +};
    >> +
    >> +static struct omap_hwmod_ocp_if *omap44xx_usbhs_ohci_masters[] = {
    >> +     &omap44xx_usb_host_hs__l3_main_2,
    >> +};
    >> +
    >> +static struct omap_hwmod omap44xx_usbhs_ohci_hwmod = {
    >> +     .name           = "usbhs_ohci",
    >> +     .class          =&omap44xx_usbhs_ohci_hwmod_class,
    >> +     .clkdm_name     = "l3_init_clkdm",
    >> +     .mpu_irqs       = omap44xx_usbhs_ohci_irqs,
    >> +     .slaves         = omap44xx_usbhs_ohci_slaves,
    >> +     .slaves_cnt     = ARRAY_SIZE(omap44xx_usbhs_ohci_slaves),
    >> +     .masters        = omap44xx_usbhs_ohci_masters,
    >> +     .masters_cnt    = ARRAY_SIZE(omap44xx_usbhs_ohci_masters),
    >
    > Assuming you need hwmod entries for that, these master entries are useless and probably wrong.
    > The TRM just documents 2 ports for usb_host_hs and 1 port for usb_tll_hs.
    >
    > You will still need the slave for the address space.
    >
    >> +     .omap_chip      = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
    >> +     .flags          = HWMOD_INIT_NO_RESET | HWMOD_NO_IDLEST,
    >> +};
    >> +
    >> +/* 'usbhs_ehci' class */
    >> +static struct omap_hwmod_class omap44xx_usbhs_ehci_hwmod_class = {
    >> +     .name = "usbhs_ehci",
    >> +};
    >> +
    >> +static struct omap_hwmod_irq_info omap44xx_usbhs_ehci_irqs[] = {
    >> +     { .name = "ehci-irq", .irq = 77 + OMAP44XX_IRQ_GIC_START },
    >> +     { .irq = -1 } /* Terminating IRQ */
    >> +};
    >> +
    >> +static struct omap_hwmod_addr_space omap44xx_usbhs_ehci_addrs[] = {
    >> +     {
    >> +             .name           = "ehci",
    >> +             .pa_start       = 0x4A064C00,
    >> +             .pa_end         = 0x4A064FFF,
    >> +             .flags          = ADDR_MAP_ON_INIT
    >> +     },
    >> +     {} /* Terminating Entry */
    >> +};
    >> +
    >> +static struct omap_hwmod_ocp_if omap44xx_l4_cfg__usbhs_ehci = {
    >> +     .master         =&omap44xx_l4_cfg_hwmod,
    >> +     .slave          =&omap44xx_usbhs_ehci_hwmod,
    >> +     .clk            = "l4_div_ck",
    >> +     .addr           = omap44xx_usbhs_ehci_addrs,
    >> +     .user           = OCP_USER_MPU | OCP_USER_SDMA,
    >> +};
    >> +
    >> +static struct omap_hwmod_ocp_if *omap44xx_usbhs_ehci_slaves[] = {
    >> +     &omap44xx_l4_cfg__usbhs_ehci,
    >> +};
    >> +
    >> +static struct omap_hwmod_ocp_if *omap44xx_usbhs_ehci_masters[] = {
    >> +     &omap44xx_usb_host_hs__l3_main_2,
    >> +};
    >> +
    >> +
    >> +static struct omap_hwmod omap44xx_usbhs_ehci_hwmod = {
    >> +     .name           = "usbhs_ehci",
    >> +     .class          =&omap44xx_usbhs_ehci_hwmod_class,
    >> +     .clkdm_name     = "l3_init_clkdm",
    >> +     .mpu_irqs       = omap44xx_usbhs_ehci_irqs,
    >> +     .slaves         = omap44xx_usbhs_ehci_slaves,
    >> +     .slaves_cnt     = ARRAY_SIZE(omap44xx_usbhs_ehci_slaves),
    >> +     .masters        = omap44xx_usbhs_ehci_masters,
    >> +     .masters_cnt    = ARRAY_SIZE(omap44xx_usbhs_ehci_masters),
    >> +     .omap_chip      = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
    >> +     .flags          = HWMOD_INIT_NO_RESET | HWMOD_NO_IDLEST,
    >> +};
    >> +
    >> +/*
    >> + * 'usb_tll_hs' class
    >> + * usb_tll_hs module is the adapter on the usb_host_hs ports
    >> + */
    >> +static struct omap_hwmod_class_sysconfig omap44xx_usb_tll_hs_sysc = {
    >> +     .rev_offs       = 0x0000,
    >> +     .sysc_offs      = 0x0010,
    >> +     .syss_offs      = 0x0014,
    >> +     .sysc_flags     = (SYSC_HAS_AUTOIDLE | SYSC_HAS_SIDLEMODE |
    >> +                             SYSC_HAS_SOFTRESET | SYSC_HAS_ENAWAKEUP |
    >> +                             SYSC_HAS_CLOCKACTIVITY),
    >> +     .idlemodes      = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
    >> +     .sysc_fields    =&omap_hwmod_sysc_type1,
    >> +};
    >> +
    >> +static struct omap_hwmod_class omap44xx_usb_tll_hs_hwmod_class = {
    >> +     .name = "usbhs_tll",
    >> +     .sysc =&omap44xx_usb_tll_hs_sysc,
    >> +};
    >> +
    >> +static struct omap_hwmod_irq_info omap44xx_usb_tll_hs_irqs[] = {
    >> +     { .name = "tll-irq", .irq = 78 + OMAP44XX_IRQ_GIC_START },
    >> +     { .irq = -1 } /* Terminating IRQ */
    >> +};
    >> +
    >> +static struct omap_hwmod_addr_space omap44xx_usb_tll_hs_addrs[] = {
    >> +     {
    >> +             .name           = "tll",
    >> +             .pa_start       = 0x4a062000,
    >> +             .pa_end         = 0x4a063fff,
    >> +             .flags          = ADDR_TYPE_RT
    >> +     },
    >> +     {} /* Terminating Entry */
    >> +};
    >> +
    >> +static struct omap_hwmod_ocp_if omap44xx_l4_cfg__usb_tll_hs = {
    >> +     .master         =&omap44xx_l4_cfg_hwmod,
    >> +     .slave          =&omap44xx_usb_tll_hs_hwmod,
    >> +     .clk            = "l4_div_ck",
    >> +     .addr           = omap44xx_usb_tll_hs_addrs,
    >> +     .user           = OCP_USER_MPU | OCP_USER_SDMA,
    >> +};
    >> +
    >> +static struct omap_hwmod_ocp_if *omap44xx_usb_tll_hs_slaves[] = {
    >> +     &omap44xx_l4_cfg__usb_tll_hs,
    >> +};
    >> +
    >> +static struct omap_hwmod omap44xx_usb_tll_hs_hwmod = {
    >> +     .name           = "usbhs_tll",
    >> +     .class          =&omap44xx_usb_tll_hs_hwmod_class,
    >> +     .clkdm_name     = "l3_init_clkdm",
    >> +     .mpu_irqs       = omap44xx_usb_tll_hs_irqs,
    >> +     .main_clk       = "usb_tll_hs_ick",
    >> +     .prcm = {
    >> +             .omap4 = {
    >> +                     .clkctrl_offs = OMAP4_CM_L3INIT_USB_TLL_CLKCTRL_OFFSET,
    >> +                     .context_offs = OMAP4_RM_L3INIT_USB_TLL_CONTEXT_OFFSET,
    >> +                     .modulemode   = MODULEMODE_HWCTRL,
    >> +             },
    >> +     },
    >> +     .slaves         = omap44xx_usb_tll_hs_slaves,
    >> +     .slaves_cnt     = ARRAY_SIZE(omap44xx_usb_tll_hs_slaves),
    >> +     .flags          = HWMOD_SWSUP_SIDLE,
    >> +     .omap_chip      = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
    >> +};
    >> +
    >>   static __initdata struct omap_hwmod *omap44xx_hwmods[] = {
    >>
    >>       /* dmm class */
    >> @@ -5482,6 +5725,10 @@ static __initdata struct omap_hwmod *omap44xx_hwmods[] = {
    >>       &omap44xx_wd_timer2_hwmod,
    >>       &omap44xx_wd_timer3_hwmod,
    >>
    >> +     &omap44xx_usb_host_hs_hwmod,
    >> +     &omap44xx_usbhs_ohci_hwmod,
    >> +     &omap44xx_usbhs_ehci_hwmod,
    >> +     &omap44xx_usb_tll_hs_hwmod,
    >
    > This list is ordered, so it should be something like that:
    >
    >        &omap44xx_uart3_hwmod,
    >        &omap44xx_uart4_hwmod,
    >
    > +       /* usb_host_hs class */
    > +       &omap44xx_usb_host_hs_hwmod,
    > +
    >        /* usb_otg_hs class */
    >        &omap44xx_usb_otg_hs_hwmod,
    >
    > +       /* usb_tll_hs class */
    > +       &omap44xx_usb_tll_hs_hwmod,
    > +
    >        /* wd_timer class */
    >        &omap44xx_wd_timer2_hwmod,
    >        &omap44xx_wd_timer3_hwmod,
    >
    > Regards,
    > Benoit


    Thanks benoit,
    I make the changes as per your comments ! I will send the new set of
    patches today only.


    regards
    keshava
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