diff options
Diffstat (limited to 'target/linux')
| -rw-r--r-- | target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/laguna.c | 54 | ||||
| -rw-r--r-- | target/linux/cns3xxx/patches-3.8/025-smp_support.patch | 2 |
2 files changed, 52 insertions, 4 deletions
diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/laguna.c b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/laguna.c index cd1aa716d..9c835f301 100644 --- a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/laguna.c +++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/laguna.c @@ -9,7 +9,7 @@ * Anton Vorontsov <avorontsov@mvista.com> * Copyright 2011 Gateworks Corporation * Chris Lang <clang@gateworks.com> - * Copyright 2012 Gateworks Corporation + * Copyright 2012-2013 Gateworks Corporation * Tim Harvey <tharvey@gateworks.com> * * This file is free software; you can redistribute it and/or modify @@ -37,6 +37,8 @@ #include <linux/spi/flash.h> #include <linux/if_ether.h> #include <linux/pps-gpio.h> +#include <linux/usb/ehci_pdriver.h> +#include <linux/usb/ohci_pdriver.h> #include <asm/setup.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -414,13 +416,52 @@ static struct resource cns3xxx_usb_ehci_resources[] = { static u64 cns3xxx_usb_ehci_dma_mask = DMA_BIT_MASK(32); +static int csn3xxx_usb_power_on(struct platform_device *pdev) +{ + /* + * EHCI and OHCI share the same clock and power, + * resetting twice would cause the 1st controller been reset. + * Therefore only do power up at the first up device, and + * power down at the last down device. + * + * Set USB AHB INCR length to 16 + */ + if (atomic_inc_return(&usb_pwr_ref) == 1) { + cns3xxx_pwr_power_up(1 << PM_PLL_HM_PD_CTRL_REG_OFFSET_PLL_USB); + cns3xxx_pwr_clk_en(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST); + cns3xxx_pwr_soft_rst(1 << PM_SOFT_RST_REG_OFFST_USB_HOST); + __raw_writel((__raw_readl(MISC_CHIP_CONFIG_REG) | (0X2 << 24)), + MISC_CHIP_CONFIG_REG); + } + + return 0; +} + +static void csn3xxx_usb_power_off(struct platform_device *pdev) +{ + /* + * EHCI and OHCI share the same clock and power, + * resetting twice would cause the 1st controller been reset. + * Therefore only do power up at the first up device, and + * power down at the last down device. + */ + if (atomic_dec_return(&usb_pwr_ref) == 0) + cns3xxx_pwr_clk_dis(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST); +} + +static struct usb_ehci_pdata cns3xxx_usb_ehci_pdata = { + .power_on = csn3xxx_usb_power_on, + .power_off = csn3xxx_usb_power_off, +}; + static struct platform_device cns3xxx_usb_ehci_device = { - .name = "cns3xxx-ehci", + .name = "ehci-platform", .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), + .platform_data = &cns3xxx_usb_ehci_pdata, }, }; @@ -438,13 +479,20 @@ static struct resource cns3xxx_usb_ohci_resources[] = { static u64 cns3xxx_usb_ohci_dma_mask = DMA_BIT_MASK(32); +static struct usb_ohci_pdata cns3xxx_usb_ohci_pdata = { + .num_ports = 1, + .power_on = csn3xxx_usb_power_on, + .power_off = csn3xxx_usb_power_off, +}; + static struct platform_device cns3xxx_usb_ohci_device = { - .name = "cns3xxx-ohci", + .name = "ohci-platform", .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), + .platform_data = &cns3xxx_usb_ohci_pdata, }, }; diff --git a/target/linux/cns3xxx/patches-3.8/025-smp_support.patch b/target/linux/cns3xxx/patches-3.8/025-smp_support.patch index e777938e5..82b1ce6f3 100644 --- a/target/linux/cns3xxx/patches-3.8/025-smp_support.patch +++ b/target/linux/cns3xxx/patches-3.8/025-smp_support.patch @@ -28,7 +28,7 @@ #ifdef CONFIG_CACHE_L2X0 --- a/arch/arm/mach-cns3xxx/laguna.c +++ b/arch/arm/mach-cns3xxx/laguna.c -@@ -941,6 +941,7 @@ static int __init laguna_model_setup(voi +@@ -989,6 +989,7 @@ static int __init laguna_model_setup(voi late_initcall(laguna_model_setup); MACHINE_START(GW2388, "Gateworks Corporation Laguna Platform") |