2011-05-27 09:54:52 +00:00
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The bcm63xx SOC has an integrated EHCI controller, this patch adds
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platform device registration and change board code to register
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EHCI device when necessary.
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Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
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---
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arch/mips/bcm63xx/Kconfig | 2 +
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arch/mips/bcm63xx/Makefile | 2 +-
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arch/mips/bcm63xx/boards/board_bcm963xx.c | 4 ++
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arch/mips/bcm63xx/dev-usb-ehci.c | 49 ++++++++++++++++++++
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.../asm/mach-bcm63xx/bcm63xx_dev_usb_ehci.h | 6 ++
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5 files changed, 62 insertions(+), 1 deletions(-)
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create mode 100644 arch/mips/bcm63xx/dev-usb-ehci.c
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create mode 100644 arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ehci.h
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--- a/arch/mips/bcm63xx/Kconfig
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+++ b/arch/mips/bcm63xx/Kconfig
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@@ -26,6 +26,8 @@ config BCM63XX_CPU_6358
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select USB_ARCH_HAS_OHCI
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select USB_OHCI_BIG_ENDIAN_DESC
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select USB_OHCI_BIG_ENDIAN_MMIO
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+ select USB_ARCH_HAS_EHCI
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+ select USB_EHCI_BIG_ENDIAN_MMIO
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endmenu
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source "arch/mips/bcm63xx/boards/Kconfig"
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--- a/arch/mips/bcm63xx/Makefile
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+++ b/arch/mips/bcm63xx/Makefile
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@@ -1,6 +1,6 @@
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obj-y += clk.o cpu.o cs.o gpio.o irq.o prom.o setup.o timer.o \
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dev-dsp.o dev-enet.o dev-pcmcia.o dev-uart.o dev-wdt.o \
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- dev-usb-ohci.o
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+ dev-usb-ohci.o dev-usb-ehci.o
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obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
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obj-y += boards/
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--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
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+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
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@@ -26,6 +26,7 @@
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#include <bcm63xx_dev_dsp.h>
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#include <bcm63xx_dev_pcmcia.h>
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#include <bcm63xx_dev_usb_ohci.h>
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+#include <bcm63xx_dev_usb_ehci.h>
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#include <board_bcm963xx.h>
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#define PFX "board_bcm963xx: "
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2011-06-19 20:28:38 +00:00
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@@ -878,6 +879,9 @@ int __init board_register_devices(void)
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2011-05-27 09:54:52 +00:00
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!board_get_mac_address(board.enet1.mac_addr))
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bcm63xx_enet_register(1, &board.enet1);
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+ if (board.has_ehci0)
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+ bcm63xx_ehci_register();
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+
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if (board.has_ohci0)
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bcm63xx_ohci_register();
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--- /dev/null
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+++ b/arch/mips/bcm63xx/dev-usb-ehci.c
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@@ -0,0 +1,49 @@
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+/*
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+ * This file is subject to the terms and conditions of the GNU General Public
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+ * License. See the file "COPYING" in the main directory of this archive
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+ * for more details.
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+ *
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+ * Copyright (C) 2010 Maxime Bizon <mbizon@freebox.fr>
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+ */
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+
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+#include <linux/init.h>
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+#include <linux/kernel.h>
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+#include <linux/platform_device.h>
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+#include <bcm63xx_cpu.h>
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+#include <bcm63xx_dev_usb_ehci.h>
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+
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+static struct resource ehci_resources[] = {
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+ {
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+ /* start & end filled at runtime */
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+ .flags = IORESOURCE_MEM,
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+ },
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+ {
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+ /* start filled at runtime */
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+ .flags = IORESOURCE_IRQ,
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+ },
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+};
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+
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+static u64 ehci_dmamask = ~(u32)0;
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+
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+static struct platform_device bcm63xx_ehci_device = {
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+ .name = "bcm63xx_ehci",
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+ .id = 0,
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+ .num_resources = ARRAY_SIZE(ehci_resources),
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+ .resource = ehci_resources,
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+ .dev = {
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+ .dma_mask = &ehci_dmamask,
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+ .coherent_dma_mask = 0xffffffff,
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+ },
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+};
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+
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+int __init bcm63xx_ehci_register(void)
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+{
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+ if (!BCMCPU_IS_6358())
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+ return 0;
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+
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+ ehci_resources[0].start = bcm63xx_regset_address(RSET_EHCI0);
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+ ehci_resources[0].end = ehci_resources[0].start;
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+ ehci_resources[0].end += RSET_EHCI_SIZE - 1;
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+ ehci_resources[1].start = bcm63xx_get_irq_number(IRQ_EHCI0);
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+ return platform_device_register(&bcm63xx_ehci_device);
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+}
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--- /dev/null
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+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ehci.h
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@@ -0,0 +1,6 @@
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+#ifndef BCM63XX_DEV_USB_EHCI_H_
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+#define BCM63XX_DEV_USB_EHCI_H_
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+
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+int bcm63xx_ehci_register(void);
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+
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+#endif /* BCM63XX_DEV_USB_EHCI_H_ */
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