summaryrefslogtreecommitdiff
path: root/arch/mips/ath79
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/ath79')
-rw-r--r--arch/mips/ath79/Kconfig5
-rw-r--r--arch/mips/ath79/Makefile1
-rw-r--r--arch/mips/ath79/dev-usb.c178
-rw-r--r--arch/mips/ath79/dev-usb.h17
-rw-r--r--arch/mips/ath79/mach-ap81.c2
-rw-r--r--arch/mips/ath79/mach-pb44.c2
6 files changed, 205 insertions, 0 deletions
diff --git a/arch/mips/ath79/Kconfig b/arch/mips/ath79/Kconfig
index 47707410582c..af01669ba665 100644
--- a/arch/mips/ath79/Kconfig
+++ b/arch/mips/ath79/Kconfig
@@ -9,6 +9,7 @@ config ATH79_MACH_AP81
select ATH79_DEV_GPIO_BUTTONS
select ATH79_DEV_LEDS_GPIO
select ATH79_DEV_SPI
+ select ATH79_DEV_USB
help
Say 'Y' here if you want your kernel to support the
Atheros AP81 reference board.
@@ -19,6 +20,7 @@ config ATH79_MACH_PB44
select ATH79_DEV_GPIO_BUTTONS
select ATH79_DEV_LEDS_GPIO
select ATH79_DEV_SPI
+ select ATH79_DEV_USB
help
Say 'Y' here if you want your kernel to support the
Atheros PB44 reference board.
@@ -52,4 +54,7 @@ config ATH79_DEV_LEDS_GPIO
config ATH79_DEV_SPI
def_bool n
+config ATH79_DEV_USB
+ def_bool n
+
endif
diff --git a/arch/mips/ath79/Makefile b/arch/mips/ath79/Makefile
index c33d4653007c..57188b61b9ae 100644
--- a/arch/mips/ath79/Makefile
+++ b/arch/mips/ath79/Makefile
@@ -20,6 +20,7 @@ obj-$(CONFIG_ATH79_DEV_AR913X_WMAC) += dev-ar913x-wmac.o
obj-$(CONFIG_ATH79_DEV_GPIO_BUTTONS) += dev-gpio-buttons.o
obj-$(CONFIG_ATH79_DEV_LEDS_GPIO) += dev-leds-gpio.o
obj-$(CONFIG_ATH79_DEV_SPI) += dev-spi.o
+obj-$(CONFIG_ATH79_DEV_USB) += dev-usb.o
#
# Machines
diff --git a/arch/mips/ath79/dev-usb.c b/arch/mips/ath79/dev-usb.c
new file mode 100644
index 000000000000..c3f1999c761b
--- /dev/null
+++ b/arch/mips/ath79/dev-usb.c
@@ -0,0 +1,178 @@
+/*
+ * Atheros AR7XXX/AR9XXX USB Host Controller device
+ *
+ * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * Parts of this file are based on Atheros' 2.6.15 BSP
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach-ath79/ath79.h>
+#include <asm/mach-ath79/ar71xx_regs.h>
+#include "common.h"
+#include "dev-usb.h"
+
+static struct resource ath79_ohci_resources[] = {
+ [0] = {
+ /* .start and .end fields are filled dynamically */
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = ATH79_MISC_IRQ_OHCI,
+ .end = ATH79_MISC_IRQ_OHCI,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static u64 ath79_ohci_dmamask = DMA_BIT_MASK(32);
+static struct platform_device ath79_ohci_device = {
+ .name = "ath79-ohci",
+ .id = -1,
+ .resource = ath79_ohci_resources,
+ .num_resources = ARRAY_SIZE(ath79_ohci_resources),
+ .dev = {
+ .dma_mask = &ath79_ohci_dmamask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+};
+
+static struct resource ath79_ehci_resources[] = {
+ [0] = {
+ /* .start and .end fields are filled dynamically */
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = ATH79_CPU_IRQ_USB,
+ .end = ATH79_CPU_IRQ_USB,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static u64 ath79_ehci_dmamask = DMA_BIT_MASK(32);
+static struct platform_device ath79_ehci_device = {
+ .name = "ath79-ehci",
+ .id = -1,
+ .resource = ath79_ehci_resources,
+ .num_resources = ARRAY_SIZE(ath79_ehci_resources),
+ .dev = {
+ .dma_mask = &ath79_ehci_dmamask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+};
+
+#define AR71XX_USB_RESET_MASK (AR71XX_RESET_USB_HOST | \
+ AR71XX_RESET_USB_PHY | \
+ AR71XX_RESET_USB_OHCI_DLL)
+
+static void __init ath79_usb_setup(void)
+{
+ void __iomem *usb_ctrl_base;
+
+ ath79_device_reset_set(AR71XX_USB_RESET_MASK);
+ mdelay(1000);
+ ath79_device_reset_clear(AR71XX_USB_RESET_MASK);
+
+ usb_ctrl_base = ioremap(AR71XX_USB_CTRL_BASE, AR71XX_USB_CTRL_SIZE);
+
+ /* Turning on the Buff and Desc swap bits */
+ __raw_writel(0xf0000, usb_ctrl_base + AR71XX_USB_CTRL_REG_CONFIG);
+
+ /* WAR for HW bug. Here it adjusts the duration between two SOFS */
+ __raw_writel(0x20c00, usb_ctrl_base + AR71XX_USB_CTRL_REG_FLADJ);
+
+ iounmap(usb_ctrl_base);
+
+ mdelay(900);
+
+ ath79_ohci_resources[0].start = AR71XX_OHCI_BASE;
+ ath79_ohci_resources[0].end = AR71XX_OHCI_BASE + AR71XX_OHCI_SIZE - 1;
+ platform_device_register(&ath79_ohci_device);
+
+ ath79_ehci_resources[0].start = AR71XX_EHCI_BASE;
+ ath79_ehci_resources[0].end = AR71XX_EHCI_BASE + AR71XX_EHCI_SIZE - 1;
+ ath79_ehci_device.name = "ar71xx-ehci";
+ platform_device_register(&ath79_ehci_device);
+}
+
+static void __init ar7240_usb_setup(void)
+{
+ void __iomem *usb_ctrl_base;
+
+ ath79_device_reset_clear(AR7240_RESET_OHCI_DLL);
+ ath79_device_reset_set(AR7240_RESET_USB_HOST);
+
+ mdelay(1000);
+
+ ath79_device_reset_set(AR7240_RESET_OHCI_DLL);
+ ath79_device_reset_clear(AR7240_RESET_USB_HOST);
+
+ usb_ctrl_base = ioremap(AR7240_USB_CTRL_BASE, AR7240_USB_CTRL_SIZE);
+
+ /* WAR for HW bug. Here it adjusts the duration between two SOFS */
+ __raw_writel(0x3, usb_ctrl_base + AR71XX_USB_CTRL_REG_FLADJ);
+
+ iounmap(usb_ctrl_base);
+
+ ath79_ohci_resources[0].start = AR7240_OHCI_BASE;
+ ath79_ohci_resources[0].end = AR7240_OHCI_BASE + AR7240_OHCI_SIZE - 1;
+ platform_device_register(&ath79_ohci_device);
+}
+
+static void __init ar724x_usb_setup(void)
+{
+ ath79_device_reset_set(AR724X_RESET_USBSUS_OVERRIDE);
+ mdelay(10);
+
+ ath79_device_reset_clear(AR724X_RESET_USB_HOST);
+ mdelay(10);
+
+ ath79_device_reset_clear(AR724X_RESET_USB_PHY);
+ mdelay(10);
+
+ ath79_ehci_resources[0].start = AR724X_EHCI_BASE;
+ ath79_ehci_resources[0].end = AR724X_EHCI_BASE + AR724X_EHCI_SIZE - 1;
+ ath79_ehci_device.name = "ar724x-ehci";
+ platform_device_register(&ath79_ehci_device);
+}
+
+static void __init ar913x_usb_setup(void)
+{
+ ath79_device_reset_set(AR913X_RESET_USBSUS_OVERRIDE);
+ mdelay(10);
+
+ ath79_device_reset_clear(AR913X_RESET_USB_HOST);
+ mdelay(10);
+
+ ath79_device_reset_clear(AR913X_RESET_USB_PHY);
+ mdelay(10);
+
+ ath79_ehci_resources[0].start = AR913X_EHCI_BASE;
+ ath79_ehci_resources[0].end = AR913X_EHCI_BASE + AR913X_EHCI_SIZE - 1;
+ ath79_ehci_device.name = "ar913x-ehci";
+ platform_device_register(&ath79_ehci_device);
+}
+
+void __init ath79_register_usb(void)
+{
+ if (soc_is_ar71xx())
+ ath79_usb_setup();
+ else if (soc_is_ar7240())
+ ar7240_usb_setup();
+ else if (soc_is_ar7241() || soc_is_ar7242())
+ ar724x_usb_setup();
+ else if (soc_is_ar913x())
+ ar913x_usb_setup();
+ else
+ BUG();
+}
diff --git a/arch/mips/ath79/dev-usb.h b/arch/mips/ath79/dev-usb.h
new file mode 100644
index 000000000000..4b86a69ca080
--- /dev/null
+++ b/arch/mips/ath79/dev-usb.h
@@ -0,0 +1,17 @@
+/*
+ * Atheros AR71XX/AR724X/AR913X USB Host Controller support
+ *
+ * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#ifndef _ATH79_DEV_USB_H
+#define _ATH79_DEV_USB_H
+
+void ath79_register_usb(void);
+
+#endif /* _ATH79_DEV_USB_H */
diff --git a/arch/mips/ath79/mach-ap81.c b/arch/mips/ath79/mach-ap81.c
index eee4c121deb4..6c0826736012 100644
--- a/arch/mips/ath79/mach-ap81.c
+++ b/arch/mips/ath79/mach-ap81.c
@@ -14,6 +14,7 @@
#include "dev-gpio-buttons.h"
#include "dev-leds-gpio.h"
#include "dev-spi.h"
+#include "dev-usb.h"
#define AP81_GPIO_LED_STATUS 1
#define AP81_GPIO_LED_AOSS 3
@@ -92,6 +93,7 @@ static void __init ap81_setup(void)
ath79_register_spi(&ap81_spi_data, ap81_spi_info,
ARRAY_SIZE(ap81_spi_info));
ath79_register_ar913x_wmac(cal_data);
+ ath79_register_usb();
}
MIPS_MACHINE(ATH79_MACH_AP81, "AP81", "Atheros AP81 reference board",
diff --git a/arch/mips/ath79/mach-pb44.c b/arch/mips/ath79/mach-pb44.c
index ec7b7a135d53..fe9701a32291 100644
--- a/arch/mips/ath79/mach-pb44.c
+++ b/arch/mips/ath79/mach-pb44.c
@@ -18,6 +18,7 @@
#include "dev-gpio-buttons.h"
#include "dev-leds-gpio.h"
#include "dev-spi.h"
+#include "dev-usb.h"
#define PB44_GPIO_I2C_SCL 0
#define PB44_GPIO_I2C_SDA 1
@@ -112,6 +113,7 @@ static void __init pb44_init(void)
pb44_gpio_keys);
ath79_register_spi(&pb44_spi_data, pb44_spi_info,
ARRAY_SIZE(pb44_spi_info));
+ ath79_register_usb();
}
MIPS_MACHINE(ATH79_MACH_PB44, "PB44", "Atheros PB44 reference board",
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-28 07:40:54 +0000