[PATCHv6 2.6.34-rc5 2/5] mx5: Add USB device definitions for Freescale MX51 Babbage HW
Nguyen Dinh-R00091
R00091 at freescale.com
Wed Apr 21 11:10:43 EDT 2010
Hi Daniel,
Functionally, this series of 5-patches for USB is dependent on this
commit:
> From: Dinh Nguyen <Dinh.Nguyen at freescale.com>
>
> Update /plat-mxc/gpio.c to support Freescale's MX51 Babbage HW.
> This patch applies to 2.6.34-rc5.
>
> Signed-off-by: Dinh Nguyen <Dinh.Nguyen at freescale.com>
Acked-by: Amit Kucheria <amit.kucheria at canonical.com>
Amit said "I'll include this in the mx5 tree to push to Sascha."
Dinh
-----Original Message-----
From: linux-kernel-owner at vger.kernel.org
[mailto:linux-kernel-owner at vger.kernel.org] On Behalf Of Daniel Mack
Sent: Tuesday, April 20, 2010 7:23 PM
To: Nguyen Dinh-R00091
Cc: linux-kernel at vger.kernel.org; linux-arm-kernel at lists.infradead.org;
linux at arm.linux.org.uk; s.hauer at pengutronix.de;
valentin.longchamp at epfl.ch; grant.likely at secretlab.ca;
bryan.wu at canonical.com; amit.kucheria at canonical.com; Li Jun-R65092;
Zhang Lily-R58066
Subject: Re: [PATCHv6 2.6.34-rc5 2/5] mx5: Add USB device definitions
for Freescale MX51 Babbage HW
Hi Dinh,
On Tue, Apr 20, 2010 at 06:19:24PM -0500, Dinh.Nguyen at freescale.com
wrote:
> This patch is part of enabling USB for Freescale MX51 Babbage HW. This
> patch adds device structures for USB Host1 and OTG port, and adds
> clocking information for USB HW.
>
> This patch applies to 2.6.34-rc5.
Hmm, this one still doesn't apply for me. Can you double-check with a
fresh checkout of 2.6.34-rc5 please?
Other than that, I'm ok with the patches now. Sascha, do you have more
objections? I couldn't test the whole thing as I lack mx5 hardware, but
it looks sane now, and it doesn't break anything for mx3.
> Signed-off-by: Dinh Nguyen <Dinh.Nguyen at freescale.com>
For the patches 3/5 and 4/5 of this series, you can have my
Reviewed-by: Daniel Mack <daniel at caiaq.de>
Thanks,
Daniel
> ---
> arch/arm/mach-mx5/clock-mx51.c | 8 ++++++
> arch/arm/mach-mx5/devices.c | 49
++++++++++++++++++++++++++++++++++++++++
> arch/arm/mach-mx5/devices.h | 2 +
> 3 files changed, 59 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-mx5/clock-mx51.c
> b/arch/arm/mach-mx5/clock-mx51.c index 8f85f73..dcca330 100644
> --- a/arch/arm/mach-mx5/clock-mx51.c
> +++ b/arch/arm/mach-mx5/clock-mx51.c
> @@ -761,6 +761,10 @@ DEFINE_CLOCK(gpt_clk, 0, MXC_CCM_CCGR2,
> MXC_CCM_CCGRx_CG9_OFFSET, DEFINE_CLOCK(gpt_ipg_clk, 0, MXC_CCM_CCGR2,
MXC_CCM_CCGRx_CG10_OFFSET,
> NULL, NULL, &ipg_clk, NULL);
>
> +/* USB */
> +DEFINE_CLOCK(usboh3_clk, 0, MXC_CCM_CCGR2, MXC_CCM_CCGRx_CG14_OFFSET,
> + NULL, NULL, &pll3_sw_clk, NULL);
> +
> /* FEC */
> DEFINE_CLOCK(fec_clk, 0, MXC_CCM_CCGR2, MXC_CCM_CCGRx_CG12_OFFSET,
> NULL, NULL, &ipg_clk, NULL);
> @@ -778,6 +782,10 @@ static struct clk_lookup lookups[] = {
> _REGISTER_CLOCK("imx-uart.2", NULL, uart3_clk)
> _REGISTER_CLOCK(NULL, "gpt", gpt_clk)
> _REGISTER_CLOCK("fec.0", NULL, fec_clk)
> + _REGISTER_CLOCK("mxc-ehci.0", "usb", usboh3_clk)
> + _REGISTER_CLOCK("mxc-ehci.0", "usb_ahb", ahb_clk)
> + _REGISTER_CLOCK("mxc-ehci.1", "usb", usboh3_clk)
> + _REGISTER_CLOCK("mxc-ehci.1", "usb_ahb", ahb_clk)
> };
>
> static void clk_tree_init(void)
> diff --git a/arch/arm/mach-mx5/devices.c b/arch/arm/mach-mx5/devices.c
> index 5070ae1..e6262f3 100644
> --- a/arch/arm/mach-mx5/devices.c
> +++ b/arch/arm/mach-mx5/devices.c
> @@ -11,6 +11,7 @@
> */
>
> #include <linux/platform_device.h>
> +#include <linux/dma-mapping.h>
> #include <linux/gpio.h>
> #include <mach/hardware.h>
> #include <mach/imx-uart.h>
> @@ -92,6 +93,54 @@ struct platform_device mxc_fec_device = {
> .resource = mxc_fec_resources,
> };
>
> +static u64 usb_dma_mask = DMA_BIT_MASK(32);
> +
> +static struct resource usbotg_resources[] = {
> + {
> + .start = MX51_OTG_BASE_ADDR,
> + .end = MX51_OTG_BASE_ADDR + 0x1ff,
> + .flags = IORESOURCE_MEM,
> + },
> + {
> + .start = MX51_MXC_INT_USB_OTG,
> + .flags = IORESOURCE_IRQ,
> + },
> +};
> +
> +struct platform_device mxc_usbdr_host_device = {
> + .name = "mxc-ehci",
> + .id = 0,
> + .num_resources = ARRAY_SIZE(usbotg_resources),
> + .resource = usbotg_resources,
> + .dev = {
> + .dma_mask = &usb_dma_mask,
> + .coherent_dma_mask = DMA_BIT_MASK(32),
> + },
> +};
> +
> +static struct resource usbh1_resources[] = {
> + {
> + .start = MX51_OTG_BASE_ADDR + 0x200,
> + .end = MX51_OTG_BASE_ADDR + 0x200 + 0x1ff,
> + .flags = IORESOURCE_MEM,
> + },
> + {
> + .start = MX51_MXC_INT_USB_H1,
> + .flags = IORESOURCE_IRQ,
> + },
> +};
> +
> +struct platform_device mxc_usbh1_device = {
> + .name = "mxc-ehci",
> + .id = 1,
> + .num_resources = ARRAY_SIZE(usbh1_resources),
> + .resource = usbh1_resources,
> + .dev = {
> + .dma_mask = &usb_dma_mask,
> + .coherent_dma_mask = DMA_BIT_MASK(32),
> + },
> +};
> +
> static struct mxc_gpio_port mxc_gpio_ports[] = {
> {
> .chip.label = "gpio-0",
> diff --git a/arch/arm/mach-mx5/devices.h b/arch/arm/mach-mx5/devices.h
> index f339ab8..95c45f9 100644
> --- a/arch/arm/mach-mx5/devices.h
> +++ b/arch/arm/mach-mx5/devices.h
> @@ -2,3 +2,5 @@ extern struct platform_device mxc_uart_device0;
> extern struct platform_device mxc_uart_device1; extern struct
> platform_device mxc_uart_device2; extern struct platform_device
> mxc_fec_device;
> +extern struct platform_device mxc_usbdr_host_device; extern struct
> +platform_device mxc_usbh1_device;
> --
> 1.6.0.4
>
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