diff options
author | Mac Lin <mkl0301@gmail.com> | 2010-11-23 00:32:44 +0800 |
---|---|---|
committer | Anton Vorontsov <cbouatmailru@gmail.com> | 2010-11-26 21:10:51 +0300 |
commit | cf36797f35676dafae9d44484391ac7f56b2485a (patch) | |
tree | cd2b6a20e50a0ffb96411ceb0d9b0906e2faf674 | |
parent | 38e64ba0f13918d11e50bbd5bb775781ccd6439d (diff) | |
download | linux-cf36797f35676dafae9d44484391ac7f56b2485a.tar.bz2 |
ARM: cns3xxx: Add architecture definition for EHCI/OHCI controller
This patch add plateform_device for EHCI and OHCI controller on CNS3XXX.
Power reference count (usb_pwr_ref) is used to control enabling and
disabling the single clock control for both EHCI and OHCI controller.
It also removes EHCI/OHCI unused virtual address definitions.
Signed-off-by: Mac Lin <mkl0301@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
-rw-r--r-- | arch/arm/mach-cns3xxx/cns3420vb.c | 54 | ||||
-rw-r--r-- | arch/arm/mach-cns3xxx/include/mach/cns3xxx.h | 2 | ||||
-rw-r--r-- | arch/arm/mach-cns3xxx/include/mach/pm.h | 4 | ||||
-rw-r--r-- | arch/arm/mach-cns3xxx/pm.c | 4 |
4 files changed, 62 insertions, 2 deletions
diff --git a/arch/arm/mach-cns3xxx/cns3420vb.c b/arch/arm/mach-cns3xxx/cns3420vb.c index 90fe9ab8591d..08e5c8759502 100644 --- a/arch/arm/mach-cns3xxx/cns3420vb.c +++ b/arch/arm/mach-cns3xxx/cns3420vb.c @@ -17,6 +17,7 @@ #include <linux/kernel.h> #include <linux/compiler.h> #include <linux/io.h> +#include <linux/dma-mapping.h> #include <linux/serial_core.h> #include <linux/serial_8250.h> #include <linux/platform_device.h> @@ -108,10 +109,63 @@ static void __init cns3420_early_serial_setup(void) } /* + * USB + */ +static struct resource cns3xxx_usb_ehci_resources[] = { + [0] = { + .start = CNS3XXX_USB_BASE, + .end = CNS3XXX_USB_BASE + SZ_16M - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_CNS3XXX_USB_EHCI, + .flags = IORESOURCE_IRQ, + }, +}; + +static u64 cns3xxx_usb_ehci_dma_mask = DMA_BIT_MASK(32); + +static struct platform_device cns3xxx_usb_ehci_device = { + .name = "cns3xxx-ehci", + .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), + }, +}; + +static struct resource cns3xxx_usb_ohci_resources[] = { + [0] = { + .start = CNS3XXX_USB_OHCI_BASE, + .end = CNS3XXX_USB_OHCI_BASE + SZ_16M - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_CNS3XXX_USB_OHCI, + .flags = IORESOURCE_IRQ, + }, +}; + +static u64 cns3xxx_usb_ohci_dma_mask = DMA_BIT_MASK(32); + +static struct platform_device cns3xxx_usb_ohci_device = { + .name = "cns3xxx-ohci", + .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), + }, +}; + +/* * Initialization */ static struct platform_device *cns3420_pdevs[] __initdata = { &cns3420_nor_pdev, + &cns3xxx_usb_ehci_device, + &cns3xxx_usb_ohci_device, }; static void __init cns3420_init(void) diff --git a/arch/arm/mach-cns3xxx/include/mach/cns3xxx.h b/arch/arm/mach-cns3xxx/include/mach/cns3xxx.h index 6dbce13771ca..191c8e57f289 100644 --- a/arch/arm/mach-cns3xxx/include/mach/cns3xxx.h +++ b/arch/arm/mach-cns3xxx/include/mach/cns3xxx.h @@ -165,7 +165,6 @@ #define CNS3XXX_USBOTG_BASE_VIRT 0xFFF15000 #define CNS3XXX_USB_BASE 0x82000000 /* USB Host Control */ -#define CNS3XXX_USB_BASE_VIRT 0xFFF16000 #define CNS3XXX_SATA2_BASE 0x83000000 /* SATA */ #define CNS3XXX_SATA2_SIZE SZ_16M @@ -184,7 +183,6 @@ #define CNS3XXX_2DG_BASE_VIRT 0xFFF1B000 #define CNS3XXX_USB_OHCI_BASE 0x88000000 /* USB OHCI */ -#define CNS3XXX_USB_OHCI_BASE_VIRT 0xFFF1C000 #define CNS3XXX_L2C_BASE 0x92000000 /* L2 Cache Control */ #define CNS3XXX_L2C_BASE_VIRT 0xFFF27000 diff --git a/arch/arm/mach-cns3xxx/include/mach/pm.h b/arch/arm/mach-cns3xxx/include/mach/pm.h index 102617bdb45b..6eae7f764d1d 100644 --- a/arch/arm/mach-cns3xxx/include/mach/pm.h +++ b/arch/arm/mach-cns3xxx/include/mach/pm.h @@ -11,9 +11,13 @@ #ifndef __CNS3XXX_PM_H #define __CNS3XXX_PM_H +#include <asm/atomic.h> + void cns3xxx_pwr_clk_en(unsigned int block); void cns3xxx_pwr_clk_dis(unsigned int block); void cns3xxx_pwr_power_up(unsigned int block); void cns3xxx_pwr_power_down(unsigned int block); +extern atomic_t usb_pwr_ref; + #endif /* __CNS3XXX_PM_H */ diff --git a/arch/arm/mach-cns3xxx/pm.c b/arch/arm/mach-cns3xxx/pm.c index c047c1a2bc2a..5e579552aa54 100644 --- a/arch/arm/mach-cns3xxx/pm.c +++ b/arch/arm/mach-cns3xxx/pm.c @@ -10,6 +10,7 @@ #include <linux/module.h> #include <linux/io.h> #include <linux/delay.h> +#include <asm/atomic.h> #include <mach/system.h> #include <mach/cns3xxx.h> #include <mach/pm.h> @@ -118,3 +119,6 @@ int cns3xxx_cpu_clock(void) return cpu; } EXPORT_SYMBOL(cns3xxx_cpu_clock); + +atomic_t usb_pwr_ref = ATOMIC_INIT(0); +EXPORT_SYMBOL(usb_pwr_ref); |