Update ehci/ohci driver registration to conform to the new platform
drivers.
This fixes missing USB host support in 3.8.x
Signed-off-by: Tim Harvey <thar...@gateworks.com>
---
.../cns3xxx/files/arch/arm/mach-cns3xxx/laguna.c | 54 ++++++++++++++++++-
1 files changed, 51 insertions(+), 3 deletions(-)
diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/laguna.c
b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/laguna.c
index cd1aa71..9c835f3 100644
--- a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/laguna.c
+++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/laguna.c
@@ -9,7 +9,7 @@
* Anton Vorontsov <avoront...@mvista.com>
* Copyright 2011 Gateworks Corporation
* Chris Lang <cl...@gateworks.com>
- * Copyright 2012 Gateworks Corporation
+ * Copyright 2012-2013 Gateworks Corporation
* Tim Harvey <thar...@gateworks.com>
*
* This file is free software; you can redistribute it and/or modify
@@ -37,6 +37,8 @@
#include <linux/spi/flash.h>
#include <linux/if_ether.h>
#include <linux/pps-gpio.h>
+#include <linux/usb/ehci_pdriver.h>
+#include <linux/usb/ohci_pdriver.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -414,13 +416,52 @@ static struct resource cns3xxx_usb_ehci_resources[] = {
static u64 cns3xxx_usb_ehci_dma_mask = DMA_BIT_MASK(32);
+static int csn3xxx_usb_power_on(struct platform_device *pdev)
+{
+ /*
+ * EHCI and OHCI share the same clock and power,
+ * resetting twice would cause the 1st controller been reset.
+ * Therefore only do power up at the first up device, and
+ * power down at the last down device.
+ *
+ * Set USB AHB INCR length to 16
+ */
+ if (atomic_inc_return(&usb_pwr_ref) == 1) {
+ cns3xxx_pwr_power_up(1 << PM_PLL_HM_PD_CTRL_REG_OFFSET_PLL_USB);
+ cns3xxx_pwr_clk_en(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST);
+ cns3xxx_pwr_soft_rst(1 << PM_SOFT_RST_REG_OFFST_USB_HOST);
+ __raw_writel((__raw_readl(MISC_CHIP_CONFIG_REG) | (0X2 << 24)),
+ MISC_CHIP_CONFIG_REG);
+ }
+
+ return 0;
+}
+
+static void csn3xxx_usb_power_off(struct platform_device *pdev)
+{
+ /*
+ * EHCI and OHCI share the same clock and power,
+ * resetting twice would cause the 1st controller been reset.
+ * Therefore only do power up at the first up device, and
+ * power down at the last down device.
+ */
+ if (atomic_dec_return(&usb_pwr_ref) == 0)
+ cns3xxx_pwr_clk_dis(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST);
+}
+
+static struct usb_ehci_pdata cns3xxx_usb_ehci_pdata = {
+ .power_on = csn3xxx_usb_power_on,
+ .power_off = csn3xxx_usb_power_off,
+};
+
static struct platform_device cns3xxx_usb_ehci_device = {
- .name = "cns3xxx-ehci",
+ .name = "ehci-platform",
.num_resources = ARRAY_SIZE(cns3xxx_usb_ehci_resources),
.resource = cns3xxx_usb_ehci_resources,
.dev = {
.dma_mask = &cns3xxx_usb_ehci_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
+ .platform_data = &cns3xxx_usb_ehci_pdata,
},
};
@@ -438,13 +479,20 @@ static struct resource cns3xxx_usb_ohci_resources[] = {
static u64 cns3xxx_usb_ohci_dma_mask = DMA_BIT_MASK(32);
+static struct usb_ohci_pdata cns3xxx_usb_ohci_pdata = {
+ .num_ports = 1,
+ .power_on = csn3xxx_usb_power_on,
+ .power_off = csn3xxx_usb_power_off,
+};
+
static struct platform_device cns3xxx_usb_ohci_device = {
- .name = "cns3xxx-ohci",
+ .name = "ohci-platform",
.num_resources = ARRAY_SIZE(cns3xxx_usb_ohci_resources),
.resource = cns3xxx_usb_ohci_resources,
.dev = {
.dma_mask = &cns3xxx_usb_ohci_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
+ .platform_data = &cns3xxx_usb_ohci_pdata,
},
};
--
1.7.5.4
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