summaryrefslogtreecommitdiff
path: root/board/davinci
diff options
context:
space:
mode:
authorSughosh Ganu <urwithsughosh@gmail.com>2012-08-09 10:45:20 +0000
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2012-09-01 14:58:19 +0200
commit25f8bf6eff9e66df850301c5e9e5259807e286f0 (patch)
treeac5279bf8fda37cce9c11c4fb7c5c9eb34015f29 /board/davinci
parent975b71bc10acb944092456fceb35aca7222addc0 (diff)
downloadu-boot-imx-25f8bf6eff9e66df850301c5e9e5259807e286f0.zip
u-boot-imx-25f8bf6eff9e66df850301c5e9e5259807e286f0.tar.gz
u-boot-imx-25f8bf6eff9e66df850301c5e9e5259807e286f0.tar.bz2
da8xx/hawkboard: Add support for ohci host controller
Also enable the ohci port on hawkboard. These additions result in an increased u-boot size -- adjust the same accordingly in the board's config. Move the usb header for da8xx platforms under arch-davinci. Signed-off-by: Sughosh Ganu <urwithsughosh@gmail.com>
Diffstat (limited to 'board/davinci')
-rw-r--r--board/davinci/da8xxevm/hawkboard.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/board/davinci/da8xxevm/hawkboard.c b/board/davinci/da8xxevm/hawkboard.c
index b694258..156cb7f 100644
--- a/board/davinci/da8xxevm/hawkboard.c
+++ b/board/davinci/da8xxevm/hawkboard.c
@@ -4,6 +4,7 @@
* Copyright (C) 2008 Sekhar Nori, Texas Instruments, Inc. <nsekhar@ti.com>
* Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
* Copyright (C) 2004 Texas Instruments.
+ * Copyright (C) 2012 Sughosh Ganu <urwithsughosh@gmail.com>.
*
* ----------------------------------------------------------------------------
* This program is free software; you can redistribute it and/or modify
@@ -28,6 +29,7 @@
#include <asm/io.h>
#include <asm/arch/davinci_misc.h>
#include <asm/arch/pinmux_defs.h>
+#include <asm/arch/da8xx-usb.h>
#include <ns16550.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -89,3 +91,42 @@ int misc_init_r(void)
return 0;
}
+
+int usb_phy_on(void)
+{
+ u32 timeout;
+ u32 cfgchip2;
+
+ cfgchip2 = readl(&davinci_syscfg_regs->cfgchip2);
+
+ cfgchip2 &= ~(CFGCHIP2_RESET | CFGCHIP2_PHYPWRDN | CFGCHIP2_OTGPWRDN |
+ CFGCHIP2_OTGMODE | CFGCHIP2_REFFREQ |
+ CFGCHIP2_USB1PHYCLKMUX);
+ cfgchip2 |= CFGCHIP2_SESENDEN | CFGCHIP2_VBDTCTEN | CFGCHIP2_PHY_PLLON |
+ CFGCHIP2_REFFREQ_24MHZ | CFGCHIP2_USB2PHYCLKMUX |
+ CFGCHIP2_USB1SUSPENDM;
+
+ writel(cfgchip2, &davinci_syscfg_regs->cfgchip2);
+
+ /* wait until the usb phy pll locks */
+ timeout = DA8XX_USB_OTG_TIMEOUT;
+ while (timeout--)
+ if (readl(&davinci_syscfg_regs->cfgchip2) & CFGCHIP2_PHYCLKGD)
+ return 1;
+
+ /* USB phy was not turned on */
+ return 0;
+}
+
+void usb_phy_off(void)
+{
+ u32 cfgchip2;
+
+ /*
+ * Power down the on-chip PHY.
+ */
+ cfgchip2 = readl(&davinci_syscfg_regs->cfgchip2);
+ cfgchip2 &= ~(CFGCHIP2_PHY_PLLON | CFGCHIP2_USB1SUSPENDM);
+ cfgchip2 |= CFGCHIP2_PHYPWRDN | CFGCHIP2_OTGPWRDN | CFGCHIP2_RESET;
+ writel(cfgchip2, &davinci_syscfg_regs->cfgchip2);
+}