]> git.karo-electronics.de Git - karo-tx-linux.git/commitdiff
ARM: OMAP5: hwmod data: Add USB Host and TLL modules
authorRoger Quadros <rogerq@ti.com>
Wed, 9 Oct 2013 05:46:50 +0000 (23:46 -0600)
committerPaul Walmsley <paul@pwsan.com>
Wed, 9 Oct 2013 05:46:50 +0000 (23:46 -0600)
Add hwmod data for High Speed USB host and TLL modules

CC: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
arch/arm/mach-omap2/omap_hwmod_54xx_data.c

index cde415570e0465caffebba3b4edbac1976cf92ed..b1725478d767153baacef81e56989671c5ed0bbe 100644 (file)
@@ -1464,6 +1464,123 @@ static struct omap_hwmod omap54xx_uart6_hwmod = {
        },
 };
 
+/*
+ * 'usb_host_hs' class
+ * high-speed multi-port usb host controller
+ */
+
+static struct omap_hwmod_class_sysconfig omap54xx_usb_host_hs_sysc = {
+       .rev_offs       = 0x0000,
+       .sysc_offs      = 0x0010,
+       .sysc_flags     = (SYSC_HAS_MIDLEMODE | SYSC_HAS_RESET_STATUS |
+                          SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET),
+       .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 omap54xx_usb_host_hs_hwmod_class = {
+       .name   = "usb_host_hs",
+       .sysc   = &omap54xx_usb_host_hs_sysc,
+};
+
+static struct omap_hwmod omap54xx_usb_host_hs_hwmod = {
+       .name           = "usb_host_hs",
+       .class          = &omap54xx_usb_host_hs_hwmod_class,
+       .clkdm_name     = "l3init_clkdm",
+       /*
+        * 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,
+       .main_clk       = "l3init_60m_fclk",
+       .prcm = {
+               .omap4 = {
+                       .clkctrl_offs = OMAP54XX_CM_L3INIT_USB_HOST_HS_CLKCTRL_OFFSET,
+                       .context_offs = OMAP54XX_RM_L3INIT_USB_HOST_HS_CONTEXT_OFFSET,
+                       .modulemode   = MODULEMODE_SWCTRL,
+               },
+       },
+};
+
+/*
+ * 'usb_tll_hs' class
+ * usb_tll_hs module is the adapter on the usb_host_hs ports
+ */
+
+static struct omap_hwmod_class_sysconfig omap54xx_usb_tll_hs_sysc = {
+       .rev_offs       = 0x0000,
+       .sysc_offs      = 0x0010,
+       .syss_offs      = 0x0014,
+       .sysc_flags     = (SYSC_HAS_AUTOIDLE | SYSC_HAS_CLOCKACTIVITY |
+                          SYSC_HAS_ENAWAKEUP | SYSC_HAS_SIDLEMODE |
+                          SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
+       .idlemodes      = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+       .sysc_fields    = &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class omap54xx_usb_tll_hs_hwmod_class = {
+       .name   = "usb_tll_hs",
+       .sysc   = &omap54xx_usb_tll_hs_sysc,
+};
+
+static struct omap_hwmod omap54xx_usb_tll_hs_hwmod = {
+       .name           = "usb_tll_hs",
+       .class          = &omap54xx_usb_tll_hs_hwmod_class,
+       .clkdm_name     = "l3init_clkdm",
+       .main_clk       = "l4_root_clk_div",
+       .prcm = {
+               .omap4 = {
+                       .clkctrl_offs = OMAP54XX_CM_L3INIT_USB_TLL_HS_CLKCTRL_OFFSET,
+                       .context_offs = OMAP54XX_RM_L3INIT_USB_TLL_HS_CONTEXT_OFFSET,
+                       .modulemode   = MODULEMODE_HWCTRL,
+               },
+       },
+};
+
 /*
  * 'usb_otg_ss' class
  * 2.0 super speed (usb_otg_ss) controller
@@ -2096,6 +2213,22 @@ static struct omap_hwmod_ocp_if omap54xx_l4_per__uart6 = {
        .user           = OCP_USER_MPU | OCP_USER_SDMA,
 };
 
+/* l4_cfg -> usb_host_hs */
+static struct omap_hwmod_ocp_if omap54xx_l4_cfg__usb_host_hs = {
+       .master         = &omap54xx_l4_cfg_hwmod,
+       .slave          = &omap54xx_usb_host_hs_hwmod,
+       .clk            = "l3_iclk_div",
+       .user           = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* l4_cfg -> usb_tll_hs */
+static struct omap_hwmod_ocp_if omap54xx_l4_cfg__usb_tll_hs = {
+       .master         = &omap54xx_l4_cfg_hwmod,
+       .slave          = &omap54xx_usb_tll_hs_hwmod,
+       .clk            = "l4_root_clk_div",
+       .user           = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
 /* l4_cfg -> usb_otg_ss */
 static struct omap_hwmod_ocp_if omap54xx_l4_cfg__usb_otg_ss = {
        .master         = &omap54xx_l4_cfg_hwmod,
@@ -2180,6 +2313,8 @@ static struct omap_hwmod_ocp_if *omap54xx_hwmod_ocp_ifs[] __initdata = {
        &omap54xx_l4_per__uart4,
        &omap54xx_l4_per__uart5,
        &omap54xx_l4_per__uart6,
+       &omap54xx_l4_cfg__usb_host_hs,
+       &omap54xx_l4_cfg__usb_tll_hs,
        &omap54xx_l4_cfg__usb_otg_ss,
        &omap54xx_l4_wkup__wd_timer2,
        NULL,