Skip to content

Commit

Permalink
ARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP3
Browse files Browse the repository at this point in the history 
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>
  • Loading branch information
Keshava Munegowda authored and Paul Walmsley committed Dec 16, 2011
1 parent 4bf90f6 commit de23138
Showing 1 changed file with 221 additions and 0 deletions.
221 changes: 221 additions & 0 deletions arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -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 = {
Expand Down Expand Up @@ -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,
Expand All @@ -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,
Expand Down Expand Up @@ -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
};

Expand All @@ -3332,13 +3549,17 @@ 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
};

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
};

Expand Down

0 comments on commit de23138

Please sign in to comment.