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The bcm63xx SOC has an integrated OHCI controller, this patch adds
platform device registration and change board code to register ohci
device when necessary.
Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
---
arch/mips/bcm63xx/Kconfig | 6 ++
arch/mips/bcm63xx/Makefile | 3 +-
arch/mips/bcm63xx/boards/board_bcm963xx.c | 4 ++
arch/mips/bcm63xx/dev-usb-ohci.c | 49 ++++++++++++++++++++
.../asm/mach-bcm63xx/bcm63xx_dev_usb_ohci.h | 6 ++
5 files changed, 67 insertions(+), 1 deletions(-)
create mode 100644 arch/mips/bcm63xx/dev-usb-ohci.c
create mode 100644 arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ohci.h
--- a/arch/mips/bcm63xx/Kconfig
+++ b/arch/mips/bcm63xx/Kconfig
@@ -16,10 +16,16 @@ config BCM63XX_CPU_6345
config BCM63XX_CPU_6348
bool "support 6348 CPU"
select HW_HAS_PCI
+ select USB_ARCH_HAS_OHCI
+ select USB_OHCI_BIG_ENDIAN_DESC
+ select USB_OHCI_BIG_ENDIAN_MMIO
config BCM63XX_CPU_6358
bool "support 6358 CPU"
select HW_HAS_PCI
+ select USB_ARCH_HAS_OHCI
+ select USB_OHCI_BIG_ENDIAN_DESC
+ select USB_OHCI_BIG_ENDIAN_MMIO
endmenu
source "arch/mips/bcm63xx/boards/Kconfig"
--- a/arch/mips/bcm63xx/Makefile
+++ b/arch/mips/bcm63xx/Makefile
@@ -1,5 +1,6 @@
obj-y += clk.o cpu.o cs.o gpio.o irq.o prom.o setup.o timer.o \
- dev-dsp.o dev-enet.o dev-pcmcia.o dev-uart.o dev-wdt.o
+ dev-dsp.o dev-enet.o dev-pcmcia.o dev-uart.o dev-wdt.o \
+ dev-usb-ohci.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
obj-y += boards/
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
@@ -25,6 +25,7 @@
#include <bcm63xx_dev_enet.h>
#include <bcm63xx_dev_dsp.h>
#include <bcm63xx_dev_pcmcia.h>
+#include <bcm63xx_dev_usb_ohci.h>
#include <board_bcm963xx.h>
#define PFX "board_bcm963xx: "
@@ -871,6 +872,9 @@ int __init board_register_devices(void)
!board_get_mac_address(board.enet1.mac_addr))
bcm63xx_enet_register(1, &board.enet1);
+ if (board.has_ohci0)
+ bcm63xx_ohci_register();
+
if (board.has_dsp)
bcm63xx_dsp_register(&board.dsp);
--- /dev/null
+++ b/arch/mips/bcm63xx/dev-usb-ohci.c
@@ -0,0 +1,49 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2010 Maxime Bizon <mbizon@freebox.fr>
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <bcm63xx_cpu.h>
+#include <bcm63xx_dev_usb_ohci.h>
+
+static struct resource ohci_resources[] = {
+ {
+ /* start & end filled at runtime */
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ /* start filled at runtime */
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static u64 ohci_dmamask = ~(u32)0;
+
+static struct platform_device bcm63xx_ohci_device = {
+ .name = "bcm63xx_ohci",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(ohci_resources),
+ .resource = ohci_resources,
+ .dev = {
+ .dma_mask = &ohci_dmamask,
+ .coherent_dma_mask = 0xffffffff,
+ },
+};
+
+int __init bcm63xx_ohci_register(void)
+{
+ if (!BCMCPU_IS_6348() && !BCMCPU_IS_6358())
+ return 0;
+
+ ohci_resources[0].start = bcm63xx_regset_address(RSET_OHCI0);
+ ohci_resources[0].end = ohci_resources[0].start;
+ ohci_resources[0].end += RSET_OHCI_SIZE - 1;
+ ohci_resources[1].start = bcm63xx_get_irq_number(IRQ_OHCI0);
+ return platform_device_register(&bcm63xx_ohci_device);
+}
--- /dev/null
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ohci.h
@@ -0,0 +1,6 @@
+#ifndef BCM63XX_DEV_USB_OHCI_H_
+#define BCM63XX_DEV_USB_OHCI_H_
+
+int bcm63xx_ohci_register(void);
+
+#endif /* BCM63XX_DEV_USB_OHCI_H_ */
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