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Message-ID: <CAP05o4LJ2P8DCri1Vf-opezP8eNX+Wghm9FBSYwy8Vrct8_YDw@mail.gmail.com>
Date: Fri, 30 Sep 2011 16:02:06 +0530
From: "Munegowda, Keshava" <keshava_mgowda@...com>
To: Paul Walmsley <paul@...an.com>
Cc: linux-usb@...r.kernel.org, linux-omap@...r.kernel.org,
linux-kernel@...r.kernel.org, balbi@...com, khilman@...com,
b-cousson@...com, gadiyar@...com, sameo@...ux.intel.com,
parthab@...ia.ti.com, tony@...mide.com, johnstul@...ibm.com,
vishwanath.bs@...com
Subject: Re: [PATCH 2/5 v12] arm: omap: usb: ehci and ohci hwmod structures
for omap3
On Fri, Sep 30, 2011 at 12:42 PM, Paul Walmsley <paul@...an.com> wrote:
> Hi
>
> a few comments
>
> On Fri, 30 Sep 2011, Keshava Munegowda wrote:
>
>> 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@...com>
>> Reviewed-by: Partha Basak <parthab@...ia.ti.com>
>> ---
>> arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 195 ++++++++++++++++++++++++++++
>> 1 files changed, 195 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 59fdb9f..bc17493 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 omap34xx_usb_host_hs_hwmod;
>> +static struct omap_hwmod omap34xx_usb_tll_hs_hwmod;
>>
>> /* L3 -> L4_CORE interface */
>> static struct omap_hwmod_ocp_if omap3xxx_l3_main__l4_core = {
>> @@ -3196,6 +3198,194 @@ static struct omap_hwmod omap3xxx_mmc3_hwmod = {
>> .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
>> };
>>
>> +/*
>> + * 'usb_host_hs' class
>> + * high-speed multi-port usb host controller
>> + */
>> +static struct omap_hwmod_ocp_if omap34xx_usb_host_hs__l3_main_2 = {
>> + .master = &omap34xx_usb_host_hs_hwmod,
>> + .slave = &omap3xxx_l3_main_hwmod,
>> + .clk = "core_l3_ick",
>> + .user = OCP_USER_MPU,
>> +};
>> +
>> +static struct omap_hwmod_class_sysconfig omap34xx_usb_host_hs_sysc = {
>> + .rev_offs = 0x0000,
>> + .sysc_offs = 0x0010,
>> + .syss_offs = 0x0014,
>> + .sysc_flags = (SYSC_HAS_MIDLEMODE | SYSC_HAS_SIDLEMODE),
>
> This register has other bitfields. Please include them.
>
>> + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
>> + MSTANDBY_FORCE | MSTANDBY_NO | MSTANDBY_SMART),
>> + .sysc_fields = &omap_hwmod_sysc_type1,
>> +};
>> +
>> +static struct omap_hwmod_class omap34xx_usb_host_hs_hwmod_class = {
>> + .name = "usb_host_hs",
>> + .sysc = &omap34xx_usb_host_hs_sysc,
>> +};
>> +
>> +static struct omap_hwmod_ocp_if *omap34xx_usb_host_hs_masters[] = {
>> + &omap34xx_usb_host_hs__l3_main_2,
>> +};
>> +
>> +static struct omap_hwmod_addr_space omap34xx_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 omap34xx_l4_cfg__usb_host_hs = {
>> + .master = &omap3xxx_l4_core_hwmod,
>> + .slave = &omap34xx_usb_host_hs_hwmod,
>> + .clk = "l4_ick",
>> + .addr = omap34xx_usb_host_hs_addrs,
>> + .user = OCP_USER_MPU | OCP_USER_SDMA,
>> +};
>> +
>> +static struct omap_hwmod_ocp_if omap34xx_usb_host_hs__ick = {
>> + .clk = "usbhost_ick",
>> + .user = OCP_USER_MPU,
>> + .flags = OCPIF_SWSUP_IDLE,
>
> Does this really need OCPIF_SWSUP_IDLE? If so, then there is a hardware
> bug, and some explanation is needed.
>
>> +};
>> +
>> +static struct omap_hwmod_ocp_if *omap34xx_usb_host_hs_slaves[] = {
>> + &omap34xx_l4_cfg__usb_host_hs,
>> + &omap34xx_usb_host_hs__ick,
>> +};
>> +
>> +static struct omap_hwmod_opt_clk omap34xx_usb_host_hs_opt_clks[] = {
>> + { .role = "usbhost_fck2", .clk = "usbhost_120m_fck", },
>
> The role here doesn't need "usbhost" in its name -- ideally it would be
> something like "120m_fck" or "ehci_logic_fck".
yes, I will do this.
>
>> +};
>> +
>> +static struct omap_hwmod_irq_info omap34xx_usb_host_hs_irqs[] = {
>> + { .name = "ohci-irq", .irq = 76 },
>> + { .name = "ehci-irq", .irq = 77 },
>> + { .irq = -1 }
>> +};
>> +
>> +static struct omap_hwmod omap34xx_usb_host_hs_hwmod = {
>> + .name = "usb_host_hs",
>> + .class = &omap34xx_usb_host_hs_hwmod_class,
>> + .clkdm_name = "l3_init_clkdm",
>> + .mpu_irqs = omap34xx_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 = omap34xx_usb_host_hs_opt_clks,
>> + .opt_clks_cnt = ARRAY_SIZE(omap34xx_usb_host_hs_opt_clks),
>> + .slaves = omap34xx_usb_host_hs_slaves,
>> + .slaves_cnt = ARRAY_SIZE(omap34xx_usb_host_hs_slaves),
>> + .masters = omap34xx_usb_host_hs_masters,
>> + .masters_cnt = ARRAY_SIZE(omap34xx_usb_host_hs_masters),
>> +/*
>> + * The usbhs controller prevents the enter omap to low power mode
>> + * if other than FORCE IDLE and FORCE STANDBY are used.
>> + */
>> + .flags = HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY,
>> + .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
>> +};
>> +
>> +/*
>> + * 'usb_tll_hs' class
>> + * usb_tll_hs module is the adapter on the usb_host_hs ports
>> + */
>> +static struct omap_hwmod_class_sysconfig omap34xx_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 omap34xx_usb_tll_hs_hwmod_class = {
>> + .name = "usb_tll_hs",
>> + .sysc = &omap34xx_usb_tll_hs_sysc,
>> +};
>> +
>> +static struct omap_hwmod_irq_info omap34xx_usb_tll_hs_irqs[] = {
>> + { .name = "tll-irq", .irq = 78 },
>> + { .irq = -1 }
>> +};
>> +
>> +static struct omap_hwmod_addr_space omap34xx_usb_tll_hs_addrs[] = {
>> + {
>> + .name = "tll",
>> + .pa_start = 0x48062000,
>> + .pa_end = 0x48062fff,
>> + .flags = ADDR_TYPE_RT
>> + },
>> + {}
>> +};
>> +
>> +static struct omap_hwmod_ocp_if omap34xx_f_cfg__usb_tll_hs = {
>> + .clk = "usbtll_ick",
>> + .user = OCP_USER_MPU,
>> + .flags = OCPIF_SWSUP_IDLE,
>> +};
>
> Does this really need OCPIF_SWSUP_IDLE? If so, then there is a hardware
> bug, and some explanation is needed.
it was not allowing enter usbhs pw domain to enter to low power idle mode; so
I add a comment here.
>> +
>> +static struct omap_hwmod_ocp_if omap34xx_l4_cfg__usb_tll_hs = {
>> + .master = &omap3xxx_l4_core_hwmod,
>> + .slave = &omap34xx_usb_tll_hs_hwmod,
>> + .clk = "l4_ick",
>> + .addr = omap34xx_usb_tll_hs_addrs,
>> + .user = OCP_USER_MPU | OCP_USER_SDMA,
>> +};
>> +
>> +static struct omap_hwmod_ocp_if *omap34xx_usb_tll_hs_slaves[] = {
>> + &omap34xx_l4_cfg__usb_tll_hs,
>> + &omap34xx_f_cfg__usb_tll_hs,
>> +};
>> +
>> +static struct omap_hwmod omap34xx_usb_tll_hs_hwmod = {
>> + .name = "usb_tll_hs",
>> + .class = &omap34xx_usb_tll_hs_hwmod_class,
>> + .clkdm_name = "l3_init_clkdm",
>> + .mpu_irqs = omap34xx_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 = omap34xx_usb_tll_hs_slaves,
>> + .slaves_cnt = ARRAY_SIZE(omap34xx_usb_tll_hs_slaves),
>> +/*
>> + * The usbhs controller prevents the enter omap to low power mode
>> + * if other than FORCE IDLE for TLL mode too.
>> + */
>> + .flags = HWMOD_SWSUP_SIDLE,
>> + .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
>> +};
>> +
>> static __initdata struct omap_hwmod *omap3xxx_hwmods[] = {
>> &omap3xxx_l3_main_hwmod,
>> &omap3xxx_l4_core_hwmod,
>> @@ -3225,6 +3415,11 @@ static __initdata struct omap_hwmod *omap3xxx_hwmods[] = {
>> &omap3xxx_uart2_hwmod,
>> &omap3xxx_uart3_hwmod,
>> &omap3xxx_uart4_hwmod,
>> +
>> + /* usb host class */
>> + &omap34xx_usb_host_hs_hwmod,
>> + &omap34xx_usb_tll_hs_hwmod,
>> +
>> /* dss class */
>> &omap3430es1_dss_core_hwmod,
>> &omap3xxx_dss_core_hwmod,
>> --
>> 1.6.0.4
>>
>
>
> - Paul
>
--
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