diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2010-02-04 14:34:48 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2010-02-04 17:29:30 +0100 |
| commit | d186f04c17d86e587e72bc402302df56a9b820f3 (patch) | |
| tree | c97f5a3fc8a7870c3565f712bdd1ce38fda9c270 /arch/arm/plat-mxc | |
| parent | 9cf945cbef42a4524b6a58486bd8bfb96640e97f (diff) | |
| download | linux-stable-d186f04c17d86e587e72bc402302df56a9b820f3.tar.gz linux-stable-d186f04c17d86e587e72bc402302df56a9b820f3.tar.bz2 linux-stable-d186f04c17d86e587e72bc402302df56a9b820f3.zip | |
i.MX35: Add USB control register access support
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Daniel Mack <daniel@caiaq.de>
Diffstat (limited to 'arch/arm/plat-mxc')
| -rw-r--r-- | arch/arm/plat-mxc/ehci.c | 55 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/include/mach/mxc_ehci.h | 4 |
2 files changed, 59 insertions, 0 deletions
diff --git a/arch/arm/plat-mxc/ehci.c b/arch/arm/plat-mxc/ehci.c index 816a9cc60e5d..cb0b63874482 100644 --- a/arch/arm/plat-mxc/ehci.c +++ b/arch/arm/plat-mxc/ehci.c @@ -38,6 +38,18 @@ #define MX31_H1_PM_BIT (1 << 8) #define MX31_H1_DT_BIT (1 << 4) +#define MX35_OTG_SIC_SHIFT 29 +#define MX35_OTG_SIC_MASK (0x3 << MX35_OTG_SIC_SHIFT) +#define MX35_OTG_PM_BIT (1 << 24) + +#define MX35_H1_SIC_SHIFT 21 +#define MX35_H1_SIC_MASK (0x3 << MX35_H1_SIC_SHIFT) +#define MX35_H1_PM_BIT (1 << 8) +#define MX35_H1_IPPUE_UP_BIT (1 << 7) +#define MX35_H1_IPPUE_DOWN_BIT (1 << 6) +#define MX35_H1_TLL_BIT (1 << 5) +#define MX35_H1_USBTE_BIT (1 << 4) + int mxc_set_usbcontrol(int port, unsigned int flags) { unsigned int v; @@ -85,6 +97,49 @@ int mxc_set_usbcontrol(int port, unsigned int flags) USBCTRL_OTGBASE_OFFSET)); return 0; } + + if (cpu_is_mx35()) { + v = readl(MX35_IO_ADDRESS(MX35_OTG_BASE_ADDR + + USBCTRL_OTGBASE_OFFSET)); + + switch (port) { + case 0: /* OTG port */ + v &= ~(MX35_OTG_SIC_MASK | MX35_OTG_PM_BIT); + v |= (flags & MXC_EHCI_INTERFACE_MASK) + << MX35_OTG_SIC_SHIFT; + if (!(flags & MXC_EHCI_POWER_PINS_ENABLED)) + v |= MX35_OTG_PM_BIT; + + break; + case 1: /* H1 port */ + v &= ~(MX35_H1_SIC_MASK | MX35_H1_PM_BIT | MX35_H1_TLL_BIT | + MX35_H1_USBTE_BIT | MX35_H1_IPPUE_DOWN_BIT | MX35_H1_IPPUE_UP_BIT); + v |= (flags & MXC_EHCI_INTERFACE_MASK) + << MX35_H1_SIC_SHIFT; + if (!(flags & MXC_EHCI_POWER_PINS_ENABLED)) + v |= MX35_H1_PM_BIT; + + if (!(flags & MXC_EHCI_TTL_ENABLED)) + v |= MX35_H1_TLL_BIT; + + if (flags & MXC_EHCI_INTERNAL_PHY) + v |= MX35_H1_USBTE_BIT; + + if (flags & MXC_EHCI_IPPUE_DOWN) + v |= MX35_H1_IPPUE_DOWN_BIT; + + if (flags & MXC_EHCI_IPPUE_UP) + v |= MX35_H1_IPPUE_UP_BIT; + + break; + default: + return -EINVAL; + } + + writel(v, MX35_IO_ADDRESS(MX35_OTG_BASE_ADDR + + USBCTRL_OTGBASE_OFFSET)); + return 0; + } #endif /* CONFIG_ARCH_MX3 */ #ifdef CONFIG_MACH_MX27 if (cpu_is_mx27()) { diff --git a/arch/arm/plat-mxc/include/mach/mxc_ehci.h b/arch/arm/plat-mxc/include/mach/mxc_ehci.h index 8f796239393e..4b9b8368c0c0 100644 --- a/arch/arm/plat-mxc/include/mach/mxc_ehci.h +++ b/arch/arm/plat-mxc/include/mach/mxc_ehci.h @@ -22,6 +22,10 @@ #define MXC_EHCI_POWER_PINS_ENABLED (1 << 5) #define MXC_EHCI_TTL_ENABLED (1 << 6) +#define MXC_EHCI_INTERNAL_PHY (1 << 7) +#define MXC_EHCI_IPPUE_DOWN (1 << 8) +#define MXC_EHCI_IPPUE_UP (1 << 9) + struct mxc_usbh_platform_data { int (*init)(struct platform_device *pdev); int (*exit)(struct platform_device *pdev); |