From ddf83a2fcef1a670c45fc585119dcc1fe062c4a9 Mon Sep 17 00:00:00 2001
From: Markus Klotzbuecher <mk@denx.de>
Date: Tue, 30 May 2006 16:56:14 +0200
Subject: Support generic OHCI support for the s3c24x0 cpu.

---
 cpu/arm920t/at91rm9200/usb.c |  6 ++++
 cpu/arm920t/s3c24x0/Makefile |  2 +-
 cpu/arm920t/s3c24x0/usb.c    | 72 ++++++++++++++++++++++++++++++++++++++++++++
 cpu/pxa/usb.c                |  5 +++
 4 files changed, 84 insertions(+), 1 deletion(-)
 create mode 100644 cpu/arm920t/s3c24x0/usb.c

(limited to 'cpu')

diff --git a/cpu/arm920t/at91rm9200/usb.c b/cpu/arm920t/at91rm9200/usb.c
index 7b83f23..98e3cdd 100644
--- a/cpu/arm920t/at91rm9200/usb.c
+++ b/cpu/arm920t/at91rm9200/usb.c
@@ -43,5 +43,11 @@ int usb_cpu_stop()
 	*AT91C_PMC_SCDR = AT91C_PMC_UHP;	/* 48MHz clock disabled for UHP */
 	return 0;
 }
+
+int usb_cpu_init_fail()
+{
+	usb_cpu_stop();
+}
+
 # endif /* CONFIG_AT91RM9200 */
 #endif /* defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) */
diff --git a/cpu/arm920t/s3c24x0/Makefile b/cpu/arm920t/s3c24x0/Makefile
index af9e4ef..f81f84d 100644
--- a/cpu/arm920t/s3c24x0/Makefile
+++ b/cpu/arm920t/s3c24x0/Makefile
@@ -26,7 +26,7 @@ include $(TOPDIR)/config.mk
 LIB	= lib$(SOC).a
 
 OBJS	= i2c.o interrupts.o serial.o speed.o \
-	  usb_ohci.o
+	  usb.o
 
 all:	.depend $(LIB)
 
diff --git a/cpu/arm920t/s3c24x0/usb.c b/cpu/arm920t/s3c24x0/usb.c
new file mode 100644
index 0000000..8114034
--- /dev/null
+++ b/cpu/arm920t/s3c24x0/usb.c
@@ -0,0 +1,72 @@
+/*
+ * (C) Copyright 2006
+ * DENX Software Engineering <mk@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+#if defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT)
+# if defined(CONFIG_S3C2400) || defined(CONFIG_S3C2410)
+
+#if defined(CONFIG_S3C2400)
+# include <s3c2400.h>
+#elif defined(CONFIG_S3C2410)
+# include <s3c2410.h>
+#endif
+
+int usb_cpu_init()
+{
+
+	S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER();
+	S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
+
+	/*
+	 * Set the 48 MHz UPLL clocking. Values are taken from
+	 * "PLL value selection guide", 6-23, s3c2400_UM.pdf.
+	 */
+	clk_power->UPLLCON = ((40 << 12) + (1 << 4) + 2);
+	gpio->MISCCR |= 0x8; /* 1 = use pads related USB for USB host */
+
+	/*
+	 * Enable USB host clock.
+	 */
+	clk_power->CLKCON |= (1 << 4);
+
+	return 0;
+}
+
+int usb_cpu_stop()
+{
+	S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER();
+	/* may not want to do this */
+	clk_power->CLKCON &= ~(1 << 4);
+	return 0;
+}
+
+int usb_cpu_init_fail()
+{
+	S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER();
+	clk_power->CLKCON &= ~(1 << 4);
+	return 0;
+}
+
+# endif /* defined(CONFIG_S3C2400) || defined(CONFIG_S3C2410) */
+#endif /* defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) */
diff --git a/cpu/pxa/usb.c b/cpu/pxa/usb.c
index 1716157..bff5bfb 100644
--- a/cpu/pxa/usb.c
+++ b/cpu/pxa/usb.c
@@ -66,8 +66,13 @@ int usb_cpu_stop()
 {
 	/* may not want to do this */
 	/* CKENA &= ~(CKENA_2_USBHOST |  CKENA_20_UDC); */
+	return 0;
+}
 
+int usb_cpu_init_fail()
+{
 	return 0;
 }
+
 # endif /* CONFIG_CPU_MONAHANS */
 #endif /* defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) */
-- 
cgit v1.1