From de231388cb80a8ef3e779bbfa0564ba0157b7377 Mon Sep 17 00:00:00 2001 From: Keshava Munegowda Date: Thu, 15 Dec 2011 23:14:44 -0700 Subject: [PATCH] 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 Reviewed-by: Partha Basak [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 --- arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 221 +++++++++++++++++++++ 1 file changed, 221 insertions(+) diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c index 3be90feca77c..905fc44ae909 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 }; -- 2.20.1