diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpio/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/gpio/Makefile | 2 | ||||
| -rw-r--r-- | drivers/gpio/gpio-pxa.c | 377 | ||||
| -rw-r--r-- | drivers/i2c/busses/i2c-tegra.c | 10 | ||||
| -rw-r--r-- | drivers/mfd/omap-usb-host.c | 755 | ||||
| -rw-r--r-- | drivers/mmc/host/omap_hsmmc.c | 26 | ||||
| -rw-r--r-- | drivers/net/ethernet/Makefile | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/cadence/Kconfig | 16 | ||||
| -rw-r--r-- | drivers/net/ethernet/cadence/at91_ether.c | 26 | ||||
| -rw-r--r-- | drivers/net/ethernet/cadence/at91_ether.h | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/cadence/macb.c | 416 | ||||
| -rw-r--r-- | drivers/net/ethernet/cadence/macb.h | 152 | ||||
| -rw-r--r-- | drivers/pcmcia/pxa2xx_cm_x255.c | 16 | ||||
| -rw-r--r-- | drivers/pcmcia/pxa2xx_cm_x270.c | 9 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-omap.c | 17 | ||||
| -rw-r--r-- | drivers/usb/host/ohci-omap3.c | 18 |
16 files changed, 1154 insertions, 698 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 8482a23887dc..aa0b94ff36d0 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -141,6 +141,12 @@ config GPIO_PL061 help Say yes here to support the PrimeCell PL061 GPIO device +config GPIO_PXA + bool "PXA GPIO support" + depends on ARCH_PXA || ARCH_MMP + help + Say yes here to support the PXA GPIO device + config GPIO_XILINX bool "Xilinx GPIO support" depends on PPC_OF || MICROBLAZE diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 4e018d6a7639..8ef9e9abe970 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -40,7 +40,7 @@ obj-$(CONFIG_GPIO_PCA953X) += gpio-pca953x.o obj-$(CONFIG_GPIO_PCF857X) += gpio-pcf857x.o obj-$(CONFIG_GPIO_PCH) += gpio-pch.o obj-$(CONFIG_GPIO_PL061) += gpio-pl061.o -obj-$(CONFIG_PLAT_PXA) += gpio-pxa.o +obj-$(CONFIG_GPIO_PXA) += gpio-pxa.o obj-$(CONFIG_GPIO_RDC321X) += gpio-rdc321x.o obj-$(CONFIG_PLAT_SAMSUNG) += gpio-samsung.o obj-$(CONFIG_ARCH_SA1100) += gpio-sa1100.o diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c index ee137712f9db..b2d3ee1d183a 100644 --- a/drivers/gpio/gpio-pxa.c +++ b/drivers/gpio/gpio-pxa.c @@ -11,14 +11,46 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ +#include <linux/clk.h> +#include <linux/err.h> #include <linux/gpio.h> +#include <linux/gpio-pxa.h> #include <linux/init.h> #include <linux/irq.h> #include <linux/io.h> +#include <linux/platform_device.h> #include <linux/syscore_ops.h> #include <linux/slab.h> -#include <mach/gpio-pxa.h> +/* + * We handle the GPIOs by banks, each bank covers up to 32 GPIOs with + * one set of registers. The register offsets are organized below: + * + * GPLR GPDR GPSR GPCR GRER GFER GEDR + * BANK 0 - 0x0000 0x000C 0x0018 0x0024 0x0030 0x003C 0x0048 + * BANK 1 - 0x0004 0x0010 0x001C 0x0028 0x0034 0x0040 0x004C + * BANK 2 - 0x0008 0x0014 0x0020 0x002C 0x0038 0x0044 0x0050 + * + * BANK 3 - 0x0100 0x010C 0x0118 0x0124 0x0130 0x013C 0x0148 + * BANK 4 - 0x0104 0x0110 0x011C 0x0128 0x0134 0x0140 0x014C + * BANK 5 - 0x0108 0x0114 0x0120 0x012C 0x0138 0x0144 0x0150 + * + * NOTE: + * BANK 3 is only available on PXA27x and later processors. + * BANK 4 and 5 are only available on PXA935 + */ + +#define GPLR_OFFSET 0x00 +#define GPDR_OFFSET 0x0C +#define GPSR_OFFSET 0x18 +#define GPCR_OFFSET 0x24 +#define GRER_OFFSET 0x30 +#define GFER_OFFSET 0x3C +#define GEDR_OFFSET 0x48 +#define GAFR_OFFSET 0x54 +#define ED_MASK_OFFSET 0x9C /* GPIO edge detection for AP side */ + +#define BANK_OFF(n) (((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2)) int pxa_last_gpio; @@ -39,8 +71,20 @@ struct pxa_gpio_chip { #endif }; +enum { + PXA25X_GPIO = 0, + PXA26X_GPIO, + PXA27X_GPIO, + PXA3XX_GPIO, + PXA93X_GPIO, + MMP_GPIO = 0x10, + MMP2_GPIO, +}; + static DEFINE_SPINLOCK(gpio_lock); static struct pxa_gpio_chip *pxa_gpio_chips; +static int gpio_type; +static void __iomem *gpio_reg_base; #define for_each_gpio_chip(i, c) \ for (i = 0, c = &pxa_gpio_chips[0]; i <= pxa_last_gpio; i += 32, c++) @@ -55,6 +99,122 @@ static inline struct pxa_gpio_chip *gpio_to_pxachip(unsigned gpio) return &pxa_gpio_chips[gpio_to_bank(gpio)]; } +static inline int gpio_is_pxa_type(int type) +{ + return (type & MMP_GPIO) == 0; +} + +static inline int gpio_is_mmp_type(int type) +{ + return (type & MMP_GPIO) != 0; +} + +/* GPIO86/87/88/89 on PXA26x have their direction bits in PXA_GPDR(2 inverted, + * as well as their Alternate Function value being '1' for GPIO in GAFRx. + */ +static inline int __gpio_is_inverted(int gpio) +{ + if ((gpio_type == PXA26X_GPIO) && (gpio > 85)) + return 1; + return 0; +} + +/* + * On PXA25x and PXA27x, GAFRx and GPDRx together decide the alternate + * function of a GPIO, and GPDRx cannot be altered once configured. It + * is attributed as "occupied" here (I know this terminology isn't + * accurate, you are welcome to propose a better one :-) + */ +static inline int __gpio_is_occupied(unsigned gpio) +{ + struct pxa_gpio_chip *pxachip; + void __iomem *base; + unsigned long gafr = 0, gpdr = 0; + int ret, af = 0, dir = 0; + + pxachip = gpio_to_pxachip(gpio); + base = gpio_chip_base(&pxachip->chip); + gpdr = readl_relaxed(base + GPDR_OFFSET); + + switch (gpio_type) { + case PXA25X_GPIO: + case PXA26X_GPIO: + case PXA27X_GPIO: + gafr = readl_relaxed(base + GAFR_OFFSET); + af = (gafr >> ((gpio & 0xf) * 2)) & 0x3; + dir = gpdr & GPIO_bit(gpio); + + if (__gpio_is_inverted(gpio)) + ret = (af != 1) || (dir == 0); + else + ret = (af != 0) || (dir != 0); + break; + default: + ret = gpdr & GPIO_bit(gpio); + break; + } + return ret; +} + +#ifdef CONFIG_ARCH_PXA +static inline int __pxa_gpio_to_irq(int gpio) +{ + if (gpio_is_pxa_type(gpio_type)) + return PXA_GPIO_TO_IRQ(gpio); + return -1; +} + +static inline int __pxa_irq_to_gpio(int irq) +{ + if (gpio_is_pxa_type(gpio_type)) + return irq - PXA_GPIO_TO_IRQ(0); + return -1; +} +#else +static inline int __pxa_gpio_to_irq(int gpio) { return -1; } +static inline int __pxa_irq_to_gpio(int irq) { return -1; } +#endif + +#ifdef CONFIG_ARCH_MMP +static inline int __mmp_gpio_to_irq(int gpio) +{ + if (gpio_is_mmp_type(gpio_type)) + return MMP_GPIO_TO_IRQ(gpio); + return -1; +} + +static inline int __mmp_irq_to_gpio(int irq) +{ + if (gpio_is_mmp_type(gpio_type)) + return irq - MMP_GPIO_TO_IRQ(0); + return -1; +} +#else +static inline int __mmp_gpio_to_irq(int gpio) { return -1; } +static inline int __mmp_irq_to_gpio(int irq) { return -1; } +#endif + +static int pxa_gpio_to_irq(struct gpio_chip *chip, unsigned offset) +{ + int gpio, ret; + + gpio = chip->base + offset; + ret = __pxa_gpio_to_irq(gpio); + if (ret >= 0) + return ret; + return __mmp_gpio_to_irq(gpio); +} + +int pxa_irq_to_gpio(int irq) +{ + int ret; + + ret = __pxa_irq_to_gpio(irq); + if (ret >= 0) + return ret; + return __mmp_irq_to_gpio(irq); +} + static int pxa_gpio_direction_input(struct gpio_chip *chip, unsigned offset) { void __iomem *base = gpio_chip_base(chip); @@ -63,12 +223,12 @@ static int pxa_gpio_direction_input(struct gpio_chip *chip, unsigned offset) spin_lock_irqsave(&gpio_lock, flags); - value = __raw_readl(base + GPDR_OFFSET); + value = readl_relaxed(base + GPDR_OFFSET); if (__gpio_is_inverted(chip->base + offset)) value |= mask; else value &= ~mask; - __raw_writel(value, base + GPDR_OFFSET); + writel_relaxed(value, base + GPDR_OFFSET); spin_unlock_irqrestore(&gpio_lock, flags); return 0; @@ -81,16 +241,16 @@ static int pxa_gpio_direction_output(struct gpio_chip *chip, uint32_t tmp, mask = 1 << offset; unsigned long flags; - __raw_writel(mask, base + (value ? GPSR_OFFSET : GPCR_OFFSET)); + writel_relaxed(mask, base + (value ? GPSR_OFFSET : GPCR_OFFSET)); spin_lock_irqsave(&gpio_lock, flags); - tmp = __raw_readl(base + GPDR_OFFSET); + tmp = readl_relaxed(base + GPDR_OFFSET); if (__gpio_is_inverted(chip->base + offset)) tmp &= ~mask; else tmp |= mask; - __raw_writel(tmp, base + GPDR_OFFSET); + writel_relaxed(tmp, base + GPDR_OFFSET); spin_unlock_irqrestore(&gpio_lock, flags); return 0; @@ -98,16 +258,16 @@ static int pxa_gpio_direction_output(struct gpio_chip *chip, static int pxa_gpio_get(struct gpio_chip *chip, unsigned offset) { - return __raw_readl(gpio_chip_base(chip) + GPLR_OFFSET) & (1 << offset); + return readl_relaxed(gpio_chip_base(chip) + GPLR_OFFSET) & (1 << offset); } static void pxa_gpio_set(struct gpio_chip *chip, unsigned offset, int value) { - __raw_writel(1 << offset, gpio_chip_base(chip) + + writel_relaxed(1 << offset, gpio_chip_base(chip) + (value ? GPSR_OFFSET : GPCR_OFFSET)); } -static int __init pxa_init_gpio_chip(int gpio_end) +static int __devinit pxa_init_gpio_chip(int gpio_end) { int i, gpio, nbanks = gpio_to_bank(gpio_end) + 1; struct pxa_gpio_chip *chips; @@ -122,7 +282,7 @@ static int __init pxa_init_gpio_chip(int gpio_end) struct gpio_chip *c = &chips[i].chip; sprintf(chips[i].label, "gpio-%d", i); - chips[i].regbase = GPIO_BANK(i); + chips[i].regbase = gpio_reg_base + BANK_OFF(i); c->base = gpio; c->label = chips[i].label; @@ -131,6 +291,7 @@ static int __init pxa_init_gpio_chip(int gpio_end) c->direction_output = pxa_gpio_direction_output; c->get = pxa_gpio_get; c->set = pxa_gpio_set; + c->to_irq = pxa_gpio_to_irq; /* number of GPIOs on last bank may be less than 32 */ c->ngpio = (gpio + 31 > gpio_end) ? (gpio_end - gpio + 1) : 32; @@ -147,18 +308,18 @@ static inline void update_edge_detect(struct pxa_gpio_chip *c) { uint32_t grer, gfer; - grer = __raw_readl(c->regbase + GRER_OFFSET) & ~c->irq_mask; - gfer = __raw_readl(c->regbase + GFER_OFFSET) & ~c->irq_mask; + grer = readl_relaxed(c->regbase + GRER_OFFSET) & ~c->irq_mask; + gfer = readl_relaxed(c->regbase + GFER_OFFSET) & ~c->irq_mask; grer |= c->irq_edge_rise & c->irq_mask; gfer |= c->irq_edge_fall & c->irq_mask; - __raw_writel(grer, c->regbase + GRER_OFFSET); - __raw_writel(gfer, c->regbase + GFER_OFFSET); + writel_relaxed(grer, c->regbase + GRER_OFFSET); + writel_relaxed(gfer, c->regbase + GFER_OFFSET); } static int pxa_gpio_irq_type(struct irq_data *d, unsigned int type) { struct pxa_gpio_chip *c; - int gpio = irq_to_gpio(d->irq); + int gpio = pxa_irq_to_gpio(d->irq); unsigned long gpdr, mask = GPIO_bit(gpio); c = gpio_to_pxachip(gpio); @@ -176,12 +337,12 @@ static int pxa_gpio_irq_type(struct irq_data *d, unsigned int type) type = IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING; } - gpdr = __raw_readl(c->regbase + GPDR_OFFSET); + gpdr = readl_relaxed(c->regbase + GPDR_OFFSET); if (__gpio_is_inverted(gpio)) - __raw_writel(gpdr | mask, c->regbase + GPDR_OFFSET); + writel_relaxed(gpdr | mask, c->regbase + GPDR_OFFSET); else - __raw_writel(gpdr & ~mask, c->regbase + GPDR_OFFSET); + writel_relaxed(gpdr & ~mask, c->regbase + GPDR_OFFSET); if (type & IRQ_TYPE_EDGE_RISING) c->irq_edge_rise |= mask; @@ -212,9 +373,9 @@ static void pxa_gpio_demux_handler(unsigned int irq, struct irq_desc *desc) for_each_gpio_chip(gpio, c) { gpio_base = c->chip.base; - gedr = __raw_readl(c->regbase + GEDR_OFFSET); + gedr = readl_relaxed(c->regbase + GEDR_OFFSET); gedr = gedr & c->irq_mask; - __raw_writel(gedr, c->regbase + GEDR_OFFSET); + writel_relaxed(gedr, c->regbase + GEDR_OFFSET); n = find_first_bit(&gedr, BITS_PER_LONG); while (n < BITS_PER_LONG) { @@ -229,29 +390,29 @@ static void pxa_gpio_demux_handler(unsigned int irq, struct irq_desc *desc) static void pxa_ack_muxed_gpio(struct irq_data *d) { - int gpio = irq_to_gpio(d->irq); + int gpio = pxa_irq_to_gpio(d->irq); struct pxa_gpio_chip *c = gpio_to_pxachip(gpio); - __raw_writel(GPIO_bit(gpio), c->regbase + GEDR_OFFSET); + writel_relaxed(GPIO_bit(gpio), c->regbase + GEDR_OFFSET); } static void pxa_mask_muxed_gpio(struct irq_data *d) { - int gpio = irq_to_gpio(d->irq); + int gpio = pxa_irq_to_gpio(d->irq); struct pxa_gpio_chip *c = gpio_to_pxachip(gpio); uint32_t grer, gfer; c->irq_mask &= ~GPIO_bit(gpio); - grer = __raw_readl(c->regbase + GRER_OFFSET) & ~GPIO_bit(gpio); - gfer = __raw_readl(c->regbase + GFER_OFFSET) & ~GPIO_bit(gpio); - __raw_writel(grer, c->regbase + GRER_OFFSET); - __raw_writel(gfer, c->regbase + GFER_OFFSET); + grer = readl_relaxed(c->regbase + GRER_OFFSET) & ~GPIO_bit(gpio); + gfer = readl_relaxed(c->regbase + GFER_OFFSET) & ~GPIO_bit(gpio); + writel_relaxed(grer, c->regbase + GRER_OFFSET); + writel_relaxed(gfer, c->regbase + GFER_OFFSET); } static void pxa_unmask_muxed_gpio(struct irq_data *d) { - int gpio = irq_to_gpio(d->irq); + int gpio = pxa_irq_to_gpio(d->irq); struct pxa_gpio_chip *c = gpio_to_pxachip(gpio); c->irq_mask |= GPIO_bit(gpio); @@ -266,34 +427,143 @@ static struct irq_chip pxa_muxed_gpio_chip = { .irq_set_type = pxa_gpio_irq_type, }; -void __init pxa_init_gpio(int mux_irq, int start, int end, set_wake_t fn) +static int pxa_gpio_nums(void) { - struct pxa_gpio_chip *c; - int gpio, irq; + int count = 0; + +#ifdef CONFIG_ARCH_PXA + if (cpu_is_pxa25x()) { +#ifdef CONFIG_CPU_PXA26x + count = 89; + gpio_type = PXA26X_GPIO; +#elif defined(CONFIG_PXA25x) + count = 84; + gpio_type = PXA26X_GPIO; +#endif /* CONFIG_CPU_PXA26x */ + } else if (cpu_is_pxa27x()) { + count = 120; + gpio_type = PXA27X_GPIO; + } else if (cpu_is_pxa93x() || cpu_is_pxa95x()) { + count = 191; + gpio_type = PXA93X_GPIO; + } else if (cpu_is_pxa3xx()) { + count = 127; + gpio_type = PXA3XX_GPIO; + } +#endif /* CONFIG_ARCH_PXA */ + +#ifdef CONFIG_ARCH_MMP + if (cpu_is_pxa168() || cpu_is_pxa910()) { + count = 127; + gpio_type = MMP_GPIO; + } else if (cpu_is_mmp2()) { + count = 191; + gpio_type = MMP2_GPIO; + } +#endif /* CONFIG_ARCH_MMP */ + return count; +} - pxa_last_gpio = end; +static int __devinit pxa_gpio_probe(struct platform_device *pdev) +{ + struct pxa_gpio_chip *c; + struct resource *res; + struct clk *clk; + int gpio, irq, ret; + int irq0 = 0, irq1 = 0, irq_mux, gpio_offset = 0; + + pxa_last_gpio = pxa_gpio_nums(); + if (!pxa_last_gpio) + return -EINVAL; + + irq0 = platform_get_irq_byname(pdev, "gpio0"); + irq1 = platform_get_irq_byname(pdev, "gpio1"); + irq_mux = platform_get_irq_byname(pdev, "gpio_mux"); + if ((irq0 > 0 && irq1 <= 0) || (irq0 <= 0 && irq1 > 0) + || (irq_mux <= 0)) + return -EINVAL; + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -EINVAL; + gpio_reg_base = ioremap(res->start, resource_size(res)); + if (!gpio_reg_base) + return -EINVAL; + + if (irq0 > 0) + gpio_offset = 2; + + clk = clk_get(&pdev->dev, NULL); + if (IS_ERR(clk)) { + dev_err(&pdev->dev, "Error %ld to get gpio clock\n", + PTR_ERR(clk)); + iounmap(gpio_reg_base); + return PTR_ERR(clk); + } + ret = clk_prepare(clk); + if (ret) { + clk_put(clk); + iounmap(gpio_reg_base); + return ret; + } + ret = clk_enable(clk); + if (ret) { + clk_unprepare(clk); + clk_put(clk); + iounmap(gpio_reg_base); + return ret; + } /* Initialize GPIO chips */ - pxa_init_gpio_chip(end); + pxa_init_gpio_chip(pxa_last_gpio); /* clear all GPIO edge detects */ for_each_gpio_chip(gpio, c) { - __raw_writel(0, c->regbase + GFER_OFFSET); - __raw_writel(0, c->regbase + GRER_OFFSET); - __raw_writel(~0,c->regbase + GEDR_OFFSET); + writel_relaxed(0, c->regbase + GFER_OFFSET); + writel_relaxed(0, c->regbase + GRER_OFFSET); + writel_relaxed(~0,c->regbase + GEDR_OFFSET); + /* unmask GPIO edge detect for AP side */ + if (gpio_is_mmp_type(gpio_type)) + writel_relaxed(~0, c->regbase + ED_MASK_OFFSET); } - for (irq = gpio_to_irq(start); irq <= gpio_to_irq(end); irq++) { +#ifdef CONFIG_ARCH_PXA + irq = gpio_to_irq(0); + irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip, + handle_edge_irq); + set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); + irq_set_chained_handler(IRQ_GPIO0, pxa_gpio_demux_handler); + + irq = gpio_to_irq(1); + irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip, + handle_edge_irq); + set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); + irq_set_chained_handler(IRQ_GPIO1, pxa_gpio_demux_handler); +#endif + + for (irq = gpio_to_irq(gpio_offset); + irq <= gpio_to_irq(pxa_last_gpio); irq++) { irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip, handle_edge_irq); set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); } - /* Install handler for GPIO>=2 edge detect interrupts */ - irq_set_chained_handler(mux_irq, pxa_gpio_demux_handler); - pxa_muxed_gpio_chip.irq_set_wake = fn; + irq_set_chained_handler(irq_mux, pxa_gpio_demux_handler); + return 0; } +static struct platform_driver pxa_gpio_driver = { + .probe = pxa_gpio_probe, + .driver = { + .name = "pxa-gpio", + }, +}; + +static int __init pxa_gpio_init(void) +{ + return platform_driver_register(&pxa_gpio_driver); +} +postcore_initcall(pxa_gpio_init); + #ifdef CONFIG_PM static int pxa_gpio_suspend(void) { @@ -301,13 +571,13 @@ static int pxa_gpio_suspend(void) int gpio; for_each_gpio_chip(gpio, c) { - c->saved_gplr = __raw_readl(c->regbase + GPLR_OFFSET); - c->saved_gpdr = __raw_readl(c->regbase + GPDR_OFFSET); - c->saved_grer = __raw_readl(c->regbase + GRER_OFFSET); - c->saved_gfer = __raw_readl(c->regbase + GFER_OFFSET); + c->saved_gplr = readl_relaxed(c->regbase + GPLR_OFFSET); + c->saved_gpdr = readl_relaxed(c->regbase + GPDR_OFFSET); + c->saved_grer = readl_relaxed(c->regbase + GRER_OFFSET); + c->saved_gfer = readl_relaxed(c->regbase + GFER_OFFSET); /* Clear GPIO transition detect bits */ - __raw_writel(0xffffffff, c->regbase + GEDR_OFFSET); + writel_relaxed(0xffffffff, c->regbase + GEDR_OFFSET); } return 0; } @@ -319,12 +589,12 @@ static void pxa_gpio_resume(void) for_each_gpio_chip(gpio, c) { /* restore level with set/clear */ - __raw_writel( c->saved_gplr, c->regbase + GPSR_OFFSET); - __raw_writel(~c->saved_gplr, c->regbase + GPCR_OFFSET); + writel_relaxed( c->saved_gplr, c->regbase + GPSR_OFFSET); + writel_relaxed(~c->saved_gplr, c->regbase + GPCR_OFFSET); - __raw_writel(c->saved_grer, c->regbase + GRER_OFFSET); - __raw_writel(c->saved_gfer, c->regbase + GFER_OFFSET); - __raw_writel(c->saved_gpdr, c->regbase + GPDR_OFFSET); + writel_relaxed(c->saved_grer, c->regbase + GRER_OFFSET); + writel_relaxed(c->saved_gfer, c->regbase + GFER_OFFSET); + writel_relaxed(c->saved_gpdr, c->regbase + GPDR_OFFSET); } } #else @@ -336,3 +606,10 @@ struct syscore_ops pxa_gpio_syscore_ops = { .suspend = pxa_gpio_suspend, .resume = pxa_gpio_resume, }; + +static int __init pxa_gpio_sysinit(void) +{ + register_syscore_ops(&pxa_gpio_syscore_ops); + return 0; +} +postcore_initcall(pxa_gpio_sysinit); diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 46b6500c5478..6381604696d3 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -558,7 +558,7 @@ static const struct i2c_algorithm tegra_i2c_algo = { .functionality = tegra_i2c_func, }; -static int tegra_i2c_probe(struct platform_device *pdev) +static int __devinit tegra_i2c_probe(struct platform_device *pdev) { struct tegra_i2c_dev *i2c_dev; struct tegra_i2c_platform_data *pdata = pdev->dev.platform_data; @@ -636,7 +636,10 @@ static int tegra_i2c_probe(struct platform_device *pdev) i2c_dev->bus_clk_rate = be32_to_cpup(prop); } - if (pdev->id == 3) + if (pdev->dev.of_node) + i2c_dev->is_dvc = of_device_is_compatible(pdev->dev.of_node, + "nvidia,tegra20-i2c-dvc"); + else if (pdev->id == 3) i2c_dev->is_dvc = 1; init_completion(&i2c_dev->msg_complete); @@ -690,7 +693,7 @@ err_iounmap: return ret; } -static int tegra_i2c_remove(struct platform_device *pdev) +static int __devexit tegra_i2c_remove(struct platform_device *pdev) { struct tegra_i2c_dev *i2c_dev = platform_get_drvdata(pdev); i2c_del_adapter(&i2c_dev->adapter); @@ -742,6 +745,7 @@ static int tegra_i2c_resume(struct platform_device *pdev) /* Match table for of_platform binding */ static const struct of_device_id tegra_i2c_of_match[] __devinitconst = { { .compatible = "nvidia,tegra20-i2c", }, + { .compatible = "nvidia,tegra20-i2c-dvc", }, {}, }; MODULE_DEVICE_TABLE(of, tegra_i2c_of_match); diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c index 86e14583a082..3f565ef3e149 100644 --- a/drivers/mfd/omap-usb-host.c +++ b/drivers/mfd/omap-usb-host.c @@ -27,8 +27,9 @@ #include <linux/spinlock.h> #include <linux/gpio.h> #include <plat/usb.h> +#include <linux/pm_runtime.h> -#define USBHS_DRIVER_NAME "usbhs-omap" +#define USBHS_DRIVER_NAME "usbhs_omap" #define OMAP_EHCI_DEVICE "ehci-omap" #define OMAP_OHCI_DEVICE "ohci-omap3" @@ -147,9 +148,6 @@ struct usbhs_hcd_omap { - struct clk *usbhost_ick; - struct clk *usbhost_hs_fck; - struct clk *usbhost_fs_fck; struct clk *xclk60mhsp1_ck; struct clk *xclk60mhsp2_ck; struct clk *utmi_p1_fck; @@ -159,8 +157,7 @@ struct usbhs_hcd_omap { struct clk *usbhost_p2_fck; struct clk *usbtll_p2_fck; struct clk *init_60m_fclk; - struct clk *usbtll_fck; - struct clk *usbtll_ick; + struct clk *ehci_logic_fck; void __iomem *uhh_base; void __iomem *tll_base; @@ -169,7 +166,6 @@ struct usbhs_hcd_omap { u32 usbhs_rev; spinlock_t lock; - int count; }; /*-------------------------------------------------------------------------*/ @@ -319,269 +315,6 @@ err_end: return ret; } -/** - * usbhs_omap_probe - initialize TI-based HCDs - * - * Allocates basic resources for this USB host controller. - */ -static int __devinit usbhs_omap_probe(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct usbhs_omap_platform_data *pdata = dev->platform_data; - struct usbhs_hcd_omap *omap; - struct resource *res; - int ret = 0; - int i; - - if (!pdata) { - dev_err(dev, "Missing platform data\n"); - ret = -ENOMEM; - goto end_probe; - } - - omap = kzalloc(sizeof(*omap), GFP_KERNEL); - if (!omap) { - dev_err(dev, "Memory allocation failed\n"); - ret = -ENOMEM; - goto end_probe; - } - - spin_lock_init(&omap->lock); - - for (i = 0; i < OMAP3_HS_USB_PORTS; i++) - omap->platdata.port_mode[i] = pdata->port_mode[i]; - - omap->platdata.ehci_data = pdata->ehci_data; - omap->platdata.ohci_data = pdata->ohci_data; - - omap->usbhost_ick = clk_get(dev, "usbhost_ick"); - if (IS_ERR(omap->usbhost_ick)) { - ret = PTR_ERR(omap->usbhost_ick); - dev_err(dev, "usbhost_ick failed error:%d\n", ret); - goto err_end; - } - - omap->usbhost_hs_fck = clk_get(dev, "hs_fck"); - if (IS_ERR(omap->usbhost_hs_fck)) { - ret = PTR_ERR(omap->usbhost_hs_fck); - dev_err(dev, "usbhost_hs_fck failed error:%d\n", ret); - goto err_usbhost_ick; - } - - omap->usbhost_fs_fck = clk_get(dev, "fs_fck"); - if (IS_ERR(omap->usbhost_fs_fck)) { - ret = PTR_ERR(omap->usbhost_fs_fck); - dev_err(dev, "usbhost_fs_fck failed error:%d\n", ret); - goto err_usbhost_hs_fck; - } - - omap->usbtll_fck = clk_get(dev, "usbtll_fck"); - if (IS_ERR(omap->usbtll_fck)) { - ret = PTR_ERR(omap->usbtll_fck); - dev_err(dev, "usbtll_fck failed error:%d\n", ret); - goto err_usbhost_fs_fck; - } - - omap->usbtll_ick = clk_get(dev, "usbtll_ick"); - if (IS_ERR(omap->usbtll_ick)) { - ret = PTR_ERR(omap->usbtll_ick); - dev_err(dev, "usbtll_ick failed error:%d\n", ret); - goto err_usbtll_fck; - } - - omap->utmi_p1_fck = clk_get(dev, "utmi_p1_gfclk"); - if (IS_ERR(omap->utmi_p1_fck)) { - ret = PTR_ERR(omap->utmi_p1_fck); - dev_err(dev, "utmi_p1_gfclk failed error:%d\n", ret); - goto err_usbtll_ick; - } - - omap->xclk60mhsp1_ck = clk_get(dev, "xclk60mhsp1_ck"); - if (IS_ERR(omap->xclk60mhsp1_ck)) { - ret = PTR_ERR(omap->xclk60mhsp1_ck); - dev_err(dev, "xclk60mhsp1_ck failed error:%d\n", ret); - goto err_utmi_p1_fck; - } - - omap->utmi_p2_fck = clk_get(dev, "utmi_p2_gfclk"); - if (IS_ERR(omap->utmi_p2_fck)) { - ret = PTR_ERR(omap->utmi_p2_fck); - dev_err(dev, "utmi_p2_gfclk failed error:%d\n", ret); - goto err_xclk60mhsp1_ck; - } - - omap->xclk60mhsp2_ck = clk_get(dev, "xclk60mhsp2_ck"); - if (IS_ERR(omap->xclk60mhsp2_ck)) { - ret = PTR_ERR(omap->xclk60mhsp2_ck); - dev_err(dev, "xclk60mhsp2_ck failed error:%d\n", ret); - goto err_utmi_p2_fck; - } - - omap->usbhost_p1_fck = clk_get(dev, "usb_host_hs_utmi_p1_clk"); - if (IS_ERR(omap->usbhost_p1_fck)) { - ret = PTR_ERR(omap->usbhost_p1_fck); - dev_err(dev, "usbhost_p1_fck failed error:%d\n", ret); - goto err_xclk60mhsp2_ck; - } - - omap->usbtll_p1_fck = clk_get(dev, "usb_tll_hs_usb_ch0_clk"); - if (IS_ERR(omap->usbtll_p1_fck)) { - ret = PTR_ERR(omap->usbtll_p1_fck); - dev_err(dev, "usbtll_p1_fck failed error:%d\n", ret); - goto err_usbhost_p1_fck; - } - - omap->usbhost_p2_fck = clk_get(dev, "usb_host_hs_utmi_p2_clk"); - if (IS_ERR(omap->usbhost_p2_fck)) { - ret = PTR_ERR(omap->usbhost_p2_fck); - dev_err(dev, "usbhost_p2_fck failed error:%d\n", ret); - goto err_usbtll_p1_fck; - } - - omap->usbtll_p2_fck = clk_get(dev, "usb_tll_hs_usb_ch1_clk"); - if (IS_ERR(omap->usbtll_p2_fck)) { - ret = PTR_ERR(omap->usbtll_p2_fck); - dev_err(dev, "usbtll_p2_fck failed error:%d\n", ret); - goto err_usbhost_p2_fck; - } - - omap->init_60m_fclk = clk_get(dev, "init_60m_fclk"); - if (IS_ERR(omap->init_60m_fclk)) { - ret = PTR_ERR(omap->init_60m_fclk); - dev_err(dev, "init_60m_fclk failed error:%d\n", ret); - goto err_usbtll_p2_fck; - } - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "uhh"); - if (!res) { - dev_err(dev, "UHH EHCI get resource failed\n"); - ret = -ENODEV; - goto err_init_60m_fclk; - } - - omap->uhh_base = ioremap(res->start, resource_size(res)); - if (!omap->uhh_base) { - dev_err(dev, "UHH ioremap failed\n"); - ret = -ENOMEM; - goto err_init_60m_fclk; - } - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "tll"); - if (!res) { - dev_err(dev, "UHH EHCI get resource failed\n"); - ret = -ENODEV; - goto err_tll; - } - - omap->tll_base = ioremap(res->start, resource_size(res)); - if (!omap->tll_base) { - dev_err(dev, "TLL ioremap failed\n"); - ret = -ENOMEM; - goto err_tll; - } - - platform_set_drvdata(pdev, omap); - - ret = omap_usbhs_alloc_children(pdev); - if (ret) { - dev_err(dev, "omap_usbhs_alloc_children failed\n"); - goto err_alloc; - } - - goto end_probe; - -err_alloc: - iounmap(omap->tll_base); - -err_tll: - iounmap(omap->uhh_base); - -err_init_60m_fclk: - clk_put(omap->init_60m_fclk); - -err_usbtll_p2_fck: - clk_put(omap->usbtll_p2_fck); - -err_usbhost_p2_fck: - clk_put(omap->usbhost_p2_fck); - -err_usbtll_p1_fck: - clk_put(omap->usbtll_p1_fck); - -err_usbhost_p1_fck: - clk_put(omap->usbhost_p1_fck); - -err_xclk60mhsp2_ck: - clk_put(omap->xclk60mhsp2_ck); - -err_utmi_p2_fck: - clk_put(omap->utmi_p2_fck); - -err_xclk60mhsp1_ck: - clk_put(omap->xclk60mhsp1_ck); - -err_utmi_p1_fck: - clk_put(omap->utmi_p1_fck); - -err_usbtll_ick: - clk_put(omap->usbtll_ick); - -err_usbtll_fck: - clk_put(omap->usbtll_fck); - -err_usbhost_fs_fck: - clk_put(omap->usbhost_fs_fck); - -err_usbhost_hs_fck: - clk_put(omap->usbhost_hs_fck); - -err_usbhost_ick: - clk_put(omap->usbhost_ick); - -err_end: - kfree(omap); - -end_probe: - return ret; -} - -/** - * usbhs_omap_remove - shutdown processing for UHH & TLL HCDs - * @pdev: USB Host Controller being removed - * - * Reverses the effect of usbhs_omap_probe(). - */ -static int __devexit usbhs_omap_remove(struct platform_device *pdev) -{ - struct usbhs_hcd_omap *omap = platform_get_drvdata(pdev); - - if (omap->count != 0) { - dev_err(&pdev->dev, - "Either EHCI or OHCI is still using usbhs core\n"); - return -EBUSY; - } - - iounmap(omap->tll_base); - iounmap(omap->uhh_base); - clk_put(omap->init_60m_fclk); - clk_put(omap->usbtll_p2_fck); - clk_put(omap->usbhost_p2_fck); - clk_put(omap->usbtll_p1_fck); - clk_put(omap->usbhost_p1_fck); - clk_put(omap->xclk60mhsp2_ck); - clk_put(omap->utmi_p2_fck); - clk_put(omap->xclk60mhsp1_ck); - clk_put(omap->utmi_p1_fck); - clk_put(omap->usbtll_ick); - clk_put(omap->usbtll_fck); - clk_put(omap->usbhost_fs_fck); - clk_put(omap->usbhost_hs_fck); - clk_put(omap->usbhost_ick); - kfree(omap); - - return 0; -} - static bool is_ohci_port(enum usbhs_omap_port_mode pmode) { switch (pmode) { @@ -689,30 +422,85 @@ static void usbhs_omap_tll_init(struct device *dev, u8 tll_channel_count) } } -static int usbhs_enable(struct device *dev) +static int usbhs_runtime_resume(struct device *dev) { struct usbhs_hcd_omap *omap = dev_get_drvdata(dev); struct usbhs_omap_platform_data *pdata = &omap->platdata; - unsigned long flags = 0; - int ret = 0; - unsigned long timeout; - unsigned reg; + unsigned long flags; + + dev_dbg(dev, "usbhs_runtime_resume\n"); - dev_dbg(dev, "starting TI HSUSB Controller\n"); if (!pdata) { dev_dbg(dev, "missing platform_data\n"); return -ENODEV; } spin_lock_irqsave(&omap->lock, flags); - if (omap->count > 0) - goto end_count; - clk_enable(omap->usbhost_ick); - clk_enable(omap->usbhost_hs_fck); - clk_enable(omap->usbhost_fs_fck); - clk_enable(omap->usbtll_fck); - clk_enable(omap->usbtll_ick); + if (omap->ehci_logic_fck && !IS_ERR(omap->ehci_logic_fck)) + clk_enable(omap->ehci_logic_fck); + + if (is_ehci_tll_mode(pdata->port_mode[0])) { + clk_enable(omap->usbhost_p1_fck); + clk_enable(omap->usbtll_p1_fck); + } + if (is_ehci_tll_mode(pdata->port_mode[1])) { + clk_enable(omap->usbhost_p2_fck); + clk_enable(omap->usbtll_p2_fck); + } + clk_enable(omap->utmi_p1_fck); + clk_enable(omap->utmi_p2_fck); + + spin_unlock_irqrestore(&omap->lock, flags); + + return 0; +} + +static int usbhs_runtime_suspend(struct device *dev) +{ + struct usbhs_hcd_omap *omap = dev_get_drvdata(dev); + struct usbhs_omap_platform_data *pdata = &omap->platdata; + unsigned long flags; + + dev_dbg(dev, "usbhs_runtime_suspend\n"); + + if (!pdata) { + dev_dbg(dev, "missing platform_data\n"); + return -ENODEV; + } + + spin_lock_irqsave(&omap->lock, flags); + + if (is_ehci_tll_mode(pdata->port_mode[0])) { + clk_disable(omap->usbhost_p1_fck); + clk_disable(omap->usbtll_p1_fck); + } + if (is_ehci_tll_mode(pdata->port_mode[1])) { + clk_disable(omap->usbhost_p2_fck); + clk_disable(omap->usbtll_p2_fck); + } + clk_disable(omap->utmi_p2_fck); + clk_disable(omap->utmi_p1_fck); + + if (omap->ehci_logic_fck && !IS_ERR(omap->ehci_logic_fck)) + clk_disable(omap->ehci_logic_fck); + + spin_unlock_irqrestore(&omap->lock, flags); + + return 0; +} + +static void omap_usbhs_init(struct device *dev) +{ + struct usbhs_hcd_omap *omap = dev_get_drvdata(dev); + struct usbhs_omap_platform_data *pdata = &omap->platdata; + unsigned long flags; + unsigned reg; + + dev_dbg(dev, "starting TI HSUSB Controller\n"); + + pm_runtime_get_sync(dev); + spin_lock_irqsave(&omap->lock, flags); if (pdata->ehci_data->phy_reset) { if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0])) { @@ -736,50 +524,6 @@ static int usbhs_enable(struct device *dev) omap->usbhs_rev = usbhs_read(omap->uhh_base, OMAP_UHH_REVISION); dev_dbg(dev, "OMAP UHH_REVISION 0x%x\n", omap->usbhs_rev); - /* perform TLL soft reset, and wait until reset is complete */ - usbhs_write(omap->tll_base, OMAP_USBTLL_SYSCONFIG, - OMAP_USBTLL_SYSCONFIG_SOFTRESET); - - /* Wait for TLL reset to complete */ - timeout = jiffies + msecs_to_jiffies(1000); - while (!(usbhs_read(omap->tll_base, OMAP_USBTLL_SYSSTATUS) - & OMAP_USBTLL_SYSSTATUS_RESETDONE)) { - cpu_relax(); - - if (time_after(jiffies, timeout)) { - dev_dbg(dev, "operation timed out\n"); - ret = -EINVAL; - goto err_tll; - } - } - - dev_dbg(dev, "TLL RESET DONE\n"); - - /* (1<<3) = no idle mode only for initial debugging */ - usbhs_write(omap->tll_base, OMAP_USBTLL_SYSCONFIG, - OMAP_USBTLL_SYSCONFIG_ENAWAKEUP | - OMAP_USBTLL_SYSCONFIG_SIDLEMODE | - OMAP_USBTLL_SYSCONFIG_AUTOIDLE); - - /* Put UHH in NoIdle/NoStandby mode */ - reg = usbhs_read(omap->uhh_base, OMAP_UHH_SYSCONFIG); - if (is_omap_usbhs_rev1(omap)) { - reg |= (OMAP_UHH_SYSCONFIG_ENAWAKEUP - | OMAP_UHH_SYSCONFIG_SIDLEMODE - | OMAP_UHH_SYSCONFIG_CACTIVITY - | OMAP_UHH_SYSCONFIG_MIDLEMODE); - reg &= ~OMAP_UHH_SYSCONFIG_AUTOIDLE; - - - } else if (is_omap_usbhs_rev2(omap)) { - reg &= ~OMAP4_UHH_SYSCONFIG_IDLEMODE_CLEAR; - reg |= OMAP4_UHH_SYSCONFIG_NOIDLE; - reg &= ~OMAP4_UHH_SYSCONFIG_STDBYMODE_CLEAR; - reg |= OMAP4_UHH_SYSCONFIG_NOSTDBY; - } - - usbhs_write(omap->uhh_base, OMAP_UHH_SYSCONFIG, reg); - reg = usbhs_read(omap->uhh_base, OMAP_UHH_HOSTCONFIG); /* setup ULPI bypass and burst configurations */ reg |= (OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN @@ -825,49 +569,6 @@ static int usbhs_enable(struct device *dev) reg &= ~OMAP4_P1_MODE_CLEAR; reg &= ~OMAP4_P2_MODE_CLEAR; - if (is_ehci_phy_mode(pdata->port_mode[0])) { - ret = clk_set_parent(omap->utmi_p1_fck, - omap->xclk60mhsp1_ck); - if (ret != 0) { - dev_err(dev, "xclk60mhsp1_ck set parent" - "failed error:%d\n", ret); - goto err_tll; - } - } else if (is_ehci_tll_mode(pdata->port_mode[0])) { - ret = clk_set_parent(omap->utmi_p1_fck, - omap->init_60m_fclk); - if (ret != 0) { - dev_err(dev, "init_60m_fclk set parent" - "failed error:%d\n", ret); - goto err_tll; - } - clk_enable(omap->usbhost_p1_fck); - clk_enable(omap->usbtll_p1_fck); - } - - if (is_ehci_phy_mode(pdata->port_mode[1])) { - ret = clk_set_parent(omap->utmi_p2_fck, - omap->xclk60mhsp2_ck); - if (ret != 0) { - dev_err(dev, "xclk60mhsp1_ck set parent" - "failed error:%d\n", ret); - goto err_tll; - } - } else if (is_ehci_tll_mode(pdata->port_mode[1])) { - ret = clk_set_parent(omap->utmi_p2_fck, - omap->init_60m_fclk); - if (ret != 0) { - dev_err(dev, "init_60m_fclk set parent" - "failed error:%d\n", ret); - goto err_tll; - } - clk_enable(omap->usbhost_p2_fck); - clk_enable(omap->usbtll_p2_fck); - } - - clk_enable(omap->utmi_p1_fck); - clk_enable(omap->utmi_p2_fck); - if (is_ehci_tll_mode(pdata->port_mode[0]) || (is_ohci_port(pdata->port_mode[0]))) reg |= OMAP4_P1_MODE_TLL; @@ -913,12 +614,15 @@ static int usbhs_enable(struct device *dev) (pdata->ehci_data->reset_gpio_port[1], 1); } -end_count: - omap->count++; spin_unlock_irqrestore(&omap->lock, flags); - return 0; + pm_runtime_put_sync(dev); +} + +static void omap_usbhs_deinit(struct device *dev) +{ + struct usbhs_hcd_omap *omap = dev_get_drvdata(dev); + struct usbhs_omap_platform_data *pdata = &omap->platdata; -err_tll: if (pdata->ehci_data->phy_reset) { if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0])) gpio_free(pdata->ehci_data->reset_gpio_port[0]); @@ -926,123 +630,272 @@ err_tll: if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1])) gpio_free(pdata->ehci_data->reset_gpio_port[1]); } - - clk_disable(omap->usbtll_ick); - clk_disable(omap->usbtll_fck); - clk_disable(omap->usbhost_fs_fck); - clk_disable(omap->usbhost_hs_fck); - clk_disable(omap->usbhost_ick); - spin_unlock_irqrestore(&omap->lock, flags); - return ret; } -static void usbhs_disable(struct device *dev) + +/** + * usbhs_omap_probe - initialize TI-based HCDs + * + * Allocates basic resources for this USB host controller. + */ +static int __devinit usbhs_omap_probe(struct platform_device *pdev) { - struct usbhs_hcd_omap *omap = dev_get_drvdata(dev); - struct usbhs_omap_platform_data *pdata = &omap->platdata; - unsigned long flags = 0; - unsigned long timeout; + struct device *dev = &pdev->dev; + struct usbhs_omap_platform_data *pdata = dev->platform_data; + struct usbhs_hcd_omap *omap; + struct resource *res; + int ret = 0; + int i; - dev_dbg(dev, "stopping TI HSUSB Controller\n"); + if (!pdata) { + dev_err(dev, "Missing platform data\n"); + ret = -ENOMEM; + goto end_probe; + } - spin_lock_irqsave(&omap->lock, flags); + omap = kzalloc(sizeof(*omap), GFP_KERNEL); + if (!omap) { + dev_err(dev, "Memory allocation failed\n"); + ret = -ENOMEM; + goto end_probe; + } - if (omap->count == 0) - goto end_disble; + spin_lock_init(&omap->lock); - omap->count--; + for (i = 0; i < OMAP3_HS_USB_PORTS; i++) + omap->platdata.port_mode[i] = pdata->port_mode[i]; + + omap->platdata.ehci_data = pdata->ehci_data; + omap->platdata.ohci_data = pdata->ohci_data; - if (omap->count != 0) - goto end_disble; + pm_runtime_enable(dev); - /* Reset OMAP modules for insmod/rmmod to work */ - usbhs_write(omap->uhh_base, OMAP_UHH_SYSCONFIG, - is_omap_usbhs_rev2(omap) ? - OMAP4_UHH_SYSCONFIG_SOFTRESET : - OMAP_UHH_SYSCONFIG_SOFTRESET); - timeout = jiffies + msecs_to_jiffies(100); - while (!(usbhs_read(omap->uhh_base, OMAP_UHH_SYSSTATUS) - & (1 << 0))) { - cpu_relax(); + for (i = 0; i < OMAP3_HS_USB_PORTS; i++) + if (is_ehci_phy_mode(i) || is_ehci_tll_mode(i) || + is_ehci_hsic_mode(i)) { + omap->ehci_logic_fck = clk_get(dev, "ehci_logic_fck"); + if (IS_ERR(omap->ehci_logic_fck)) { + ret = PTR_ERR(omap->ehci_logic_fck); + dev_warn(dev, "ehci_logic_fck failed:%d\n", + ret); + } + break; + } - if (time_after(jiffies, timeout)) - dev_dbg(dev, "operation timed out\n"); + omap->utmi_p1_fck = clk_get(dev, "utmi_p1_gfclk"); + if (IS_ERR(omap->utmi_p1_fck)) { + ret = PTR_ERR(omap->utmi_p1_fck); + dev_err(dev, "utmi_p1_gfclk failed error:%d\n", ret); + goto err_end; } - while (!(usbhs_read(omap->uhh_base, OMAP_UHH_SYSSTATUS) - & (1 << 1))) { - cpu_relax(); + omap->xclk60mhsp1_ck = clk_get(dev, "xclk60mhsp1_ck"); + if (IS_ERR(omap->xclk60mhsp1_ck)) { + ret = PTR_ERR(omap->xclk60mhsp1_ck); + dev_err(dev, "xclk60mhsp1_ck failed error:%d\n", ret); + goto err_utmi_p1_fck; + } - if (time_after(jiffies, timeout)) - dev_dbg(dev, "operation timed out\n"); + omap->utmi_p2_fck = clk_get(dev, "utmi_p2_gfclk"); + if (IS_ERR(omap->utmi_p2_fck)) { + ret = PTR_ERR(omap->utmi_p2_fck); + dev_err(dev, "utmi_p2_gfclk failed error:%d\n", ret); + goto err_xclk60mhsp1_ck; } - while (!(usbhs_read(omap->uhh_base, OMAP_UHH_SYSSTATUS) - & (1 << 2))) { - cpu_relax(); + omap->xclk60mhsp2_ck = clk_get(dev, "xclk60mhsp2_ck"); + if (IS_ERR(omap->xclk60mhsp2_ck)) { + ret = PTR_ERR(omap->xclk60mhsp2_ck); + dev_err(dev, "xclk60mhsp2_ck failed error:%d\n", ret); + goto err_utmi_p2_fck; + } - if (time_after(jiffies, timeout)) - dev_dbg(dev, "operation timed out\n"); + omap->usbhost_p1_fck = clk_get(dev, "usb_host_hs_utmi_p1_clk"); + if (IS_ERR(omap->usbhost_p1_fck)) { + ret = PTR_ERR(omap->usbhost_p1_fck); + dev_err(dev, "usbhost_p1_fck failed error:%d\n", ret); + goto err_xclk60mhsp2_ck; } - usbhs_write(omap->tll_base, OMAP_USBTLL_SYSCONFIG, (1 << 1)); + omap->usbtll_p1_fck = clk_get(dev, "usb_tll_hs_usb_ch0_clk"); + if (IS_ERR(omap->usbtll_p1_fck)) { + ret = PTR_ERR(omap->usbtll_p1_fck); + dev_err(dev, "usbtll_p1_fck failed error:%d\n", ret); + goto err_usbhost_p1_fck; + } - while (!(usbhs_read(omap->tll_base, OMAP_USBTLL_SYSSTATUS) - & (1 << 0))) { - cpu_relax(); + omap->usbhost_p2_fck = clk_get(dev, "usb_host_hs_utmi_p2_clk"); + if (IS_ERR(omap->usbhost_p2_fck)) { + ret = PTR_ERR(omap->usbhost_p2_fck); + dev_err(dev, "usbhost_p2_fck failed error:%d\n", ret); + goto err_usbtll_p1_fck; + } - if (time_after(jiffies, timeout)) - dev_dbg(dev, "operation timed out\n"); + omap->usbtll_p2_fck = clk_get(dev, "usb_tll_hs_usb_ch1_clk"); + if (IS_ERR(omap->usbtll_p2_fck)) { + ret = PTR_ERR(omap->usbtll_p2_fck); + dev_err(dev, "usbtll_p2_fck failed error:%d\n", ret); + goto err_usbhost_p2_fck; } - if (is_omap_usbhs_rev2(omap)) { - if (is_ehci_tll_mode(pdata->port_mode[0])) - clk_disable(omap->usbtll_p1_fck); - if (is_ehci_tll_mode(pdata->port_mode[1])) - clk_disable(omap->usbtll_p2_fck); - clk_disable(omap->utmi_p2_fck); - clk_disable(omap->utmi_p1_fck); + omap->init_60m_fclk = clk_get(dev, "init_60m_fclk"); + if (IS_ERR(omap->init_60m_fclk)) { + ret = PTR_ERR(omap->init_60m_fclk); + dev_err(dev, "init_60m_fclk failed error:%d\n", ret); + goto err_usbtll_p2_fck; } - clk_disable(omap->usbtll_ick); - clk_disable(omap->usbtll_fck); - clk_disable(omap->usbhost_fs_fck); - clk_disable(omap->usbhost_hs_fck); - clk_disable(omap->usbhost_ick); + if (is_ehci_phy_mode(pdata->port_mode[0])) { + /* for OMAP3 , the clk set paretn fails */ + ret = clk_set_parent(omap->utmi_p1_fck, + omap->xclk60mhsp1_ck); + if (ret != 0) + dev_err(dev, "xclk60mhsp1_ck set parent" + "failed error:%d\n", ret); + } else if (is_ehci_tll_mode(pdata->port_mode[0])) { + ret = clk_set_parent(omap->utmi_p1_fck, + omap->init_60m_fclk); + if (ret != 0) + dev_err(dev, "init_60m_fclk set parent" + "failed error:%d\n", ret); + } - /* The gpio_free migh sleep; so unlock the spinlock */ - spin_unlock_irqrestore(&omap->lock, flags); + if (is_ehci_phy_mode(pdata->port_mode[1])) { + ret = clk_set_parent(omap->utmi_p2_fck, + omap->xclk60mhsp2_ck); + if (ret != 0) + dev_err(dev, "xclk60mhsp2_ck set parent" + "failed error:%d\n", ret); + } else if (is_ehci_tll_mode(pdata->port_mode[1])) { + ret = clk_set_parent(omap->utmi_p2_fck, + omap->init_60m_fclk); + if (ret != 0) + dev_err(dev, "init_60m_fclk set parent" + "failed error:%d\n", ret); + } - if (pdata->ehci_data->phy_reset) { - if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0])) - gpio_free(pdata->ehci_data->reset_gpio_port[0]); + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "uhh"); + if (!res) { + dev_err(dev, "UHH EHCI get resource failed\n"); + ret = -ENODEV; + goto err_init_60m_fclk; + } - if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1])) - gpio_free(pdata->ehci_data->reset_gpio_port[1]); + omap->uhh_base = ioremap(res->start, resource_size(res)); + if (!omap->uhh_base) { + dev_err(dev, "UHH ioremap failed\n"); + ret = -ENOMEM; + goto err_init_60m_fclk; } - return; -end_disble: - spin_unlock_irqrestore(&omap->lock, flags); -} + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "tll"); + if (!res) { + dev_err(dev, "UHH EHCI get resource failed\n"); + ret = -ENODEV; + goto err_tll; + } -int omap_usbhs_enable(struct device *dev) -{ - return usbhs_enable(dev->parent); + omap->tll_base = ioremap(res->start, resource_size(res)); + if (!omap->tll_base) { + dev_err(dev, "TLL ioremap failed\n"); + ret = -ENOMEM; + goto err_tll; + } + + platform_set_drvdata(pdev, omap); + + ret = omap_usbhs_alloc_children(pdev); + if (ret) { + dev_err(dev, "omap_usbhs_alloc_children failed\n"); + goto err_alloc; + } + + omap_usbhs_init(dev); + + goto end_probe; + +err_alloc: + iounmap(omap->tll_base); + +err_tll: + iounmap(omap->uhh_base); + +err_init_60m_fclk: + clk_put(omap->init_60m_fclk); + +err_usbtll_p2_fck: + clk_put(omap->usbtll_p2_fck); + +err_usbhost_p2_fck: + clk_put(omap->usbhost_p2_fck); + +err_usbtll_p1_fck: + clk_put(omap->usbtll_p1_fck); + +err_usbhost_p1_fck: + clk_put(omap->usbhost_p1_fck); + +err_xclk60mhsp2_ck: + clk_put(omap->xclk60mhsp2_ck); + +err_utmi_p2_fck: + clk_put(omap->utmi_p2_fck); + +err_xclk60mhsp1_ck: + clk_put(omap->xclk60mhsp1_ck); + +err_utmi_p1_fck: + clk_put(omap->utmi_p1_fck); + +err_end: + clk_put(omap->ehci_logic_fck); + pm_runtime_disable(dev); + kfree(omap); + +end_probe: + return ret; } -EXPORT_SYMBOL_GPL(omap_usbhs_enable); -void omap_usbhs_disable(struct device *dev) +/** + * usbhs_omap_remove - shutdown processing for UHH & TLL HCDs + * @pdev: USB Host Controller being removed + * + * Reverses the effect of usbhs_omap_probe(). + */ +static int __devexit usbhs_omap_remove(struct platform_device *pdev) { - usbhs_disable(dev->parent); + struct usbhs_hcd_omap *omap = platform_get_drvdata(pdev); + + omap_usbhs_deinit(&pdev->dev); + iounmap(omap->tll_base); + iounmap(omap->uhh_base); + clk_put(omap->init_60m_fclk); + clk_put(omap->usbtll_p2_fck); + clk_put(omap->usbhost_p2_fck); + clk_put(omap->usbtll_p1_fck); + clk_put(omap->usbhost_p1_fck); + clk_put(omap->xclk60mhsp2_ck); + clk_put(omap->utmi_p2_fck); + clk_put(omap->xclk60mhsp1_ck); + clk_put(omap->utmi_p1_fck); + clk_put(omap->ehci_logic_fck); + pm_runtime_disable(&pdev->dev); + kfree(omap); + + return 0; } -EXPORT_SYMBOL_GPL(omap_usbhs_disable); + +static const struct dev_pm_ops usbhsomap_dev_pm_ops = { + .runtime_suspend = usbhs_runtime_suspend, + .runtime_resume = usbhs_runtime_resume, +}; static struct platform_driver usbhs_omap_driver = { .driver = { .name = (char *)usbhs_driver_name, .owner = THIS_MODULE, + .pm = &usbhsomap_dev_pm_ops, }, .remove = __exit_p(usbhs_omap_remove), }; diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index d5fe43d53c51..d1fb561e089d 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -1991,6 +1991,8 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev) if (mmc_slot(host).nonremovable) mmc->caps |= MMC_CAP_NONREMOVABLE; + mmc->pm_caps = mmc_slot(host).pm_caps; + omap_hsmmc_conf_bus_power(host); /* Select DMA lines */ @@ -2179,13 +2181,7 @@ static int omap_hsmmc_suspend(struct device *dev) cancel_work_sync(&host->mmc_carddetect_work); ret = mmc_suspend_host(host->mmc); - if (ret == 0) { - omap_hsmmc_disable_irq(host); - OMAP_HSMMC_WRITE(host->base, HCTL, - OMAP_HSMMC_READ(host->base, HCTL) & ~SDBP); - if (host->got_dbclk) - clk_disable(host->dbclk); - } else { + if (ret) { host->suspended = 0; if (host->pdata->resume) { ret = host->pdata->resume(&pdev->dev, @@ -2194,9 +2190,20 @@ static int omap_hsmmc_suspend(struct device *dev) dev_dbg(mmc_dev(host->mmc), "Unmask interrupt failed\n"); } + goto err; } - pm_runtime_put_sync(host->dev); + + if (!(host->mmc->pm_flags & MMC_PM_KEEP_POWER)) { + omap_hsmmc_disable_irq(host); + OMAP_HSMMC_WRITE(host->base, HCTL, + OMAP_HSMMC_READ(host->base, HCTL) & ~SDBP); + } + if (host->got_dbclk) + clk_disable(host->dbclk); + } +err: + pm_runtime_put_sync(host->dev); return ret; } @@ -2216,7 +2223,8 @@ static int omap_hsmmc_resume(struct device *dev) if (host->got_dbclk) clk_enable(host->dbclk); - omap_hsmmc_conf_bus_power(host); + if (!(host->mmc->pm_flags & MMC_PM_KEEP_POWER)) + omap_hsmmc_conf_bus_power(host); if (host->pdata->resume) { ret = host->pdata->resume(&pdev->dev, host->slot_id); diff --git a/drivers/net/ethernet/Makefile b/drivers/net/ethernet/Makefile index be5dde040261..94b7f287d6c5 100644 --- a/drivers/net/ethernet/Makefile +++ b/drivers/net/ethernet/Makefile @@ -10,7 +10,7 @@ obj-$(CONFIG_NET_VENDOR_ALTEON) += alteon/ obj-$(CONFIG_NET_VENDOR_AMD) += amd/ obj-$(CONFIG_NET_VENDOR_APPLE) += apple/ obj-$(CONFIG_NET_VENDOR_ATHEROS) += atheros/ -obj-$(CONFIG_NET_ATMEL) += cadence/ +obj-$(CONFIG_NET_CADENCE) += cadence/ obj-$(CONFIG_NET_BFIN) += adi/ obj-$(CONFIG_NET_VENDOR_BROADCOM) += broadcom/ obj-$(CONFIG_NET_VENDOR_BROCADE) += brocade/ diff --git a/drivers/net/ethernet/cadence/Kconfig b/drivers/net/ethernet/cadence/Kconfig index b48378a41e49..db931916da08 100644 --- a/drivers/net/ethernet/cadence/Kconfig +++ b/drivers/net/ethernet/cadence/Kconfig @@ -5,8 +5,8 @@ config HAVE_NET_MACB bool -config NET_ATMEL - bool "Atmel devices" +config NET_CADENCE + bool "Cadence devices" default y depends on HAVE_NET_MACB || (ARM && ARCH_AT91RM9200) ---help--- @@ -21,7 +21,7 @@ config NET_ATMEL the remaining Atmel network card questions. If you say Y, you will be asked for your specific card in the following questions. -if NET_ATMEL +if NET_CADENCE config ARM_AT91_ETHER tristate "AT91RM9200 Ethernet support" @@ -33,14 +33,16 @@ config ARM_AT91_ETHER ethernet support, then you should always answer Y to this. config MACB - tristate "Atmel MACB support" + tristate "Cadence MACB/GEM support" depends on HAVE_NET_MACB select PHYLIB ---help--- - The Atmel MACB ethernet interface is found on many AT32 and AT91 - parts. Say Y to include support for the MACB chip. + The Cadence MACB ethernet interface is found on many Atmel AT32 and + AT91 parts. This driver also supports the Cadence GEM (Gigabit + Ethernet MAC found in some ARM SoC devices). Note: the Gigabit mode + is not yet supported. Say Y to include support for the MACB/GEM chip. To compile this driver as a module, choose M here: the module will be called macb. -endif # NET_ATMEL +endif # NET_CADENCE diff --git a/drivers/net/ethernet/cadence/at91_ether.c b/drivers/net/ethernet/cadence/at91_ether.c index 56624d303487..1a5b6efa0120 100644 --- a/drivers/net/ethernet/cadence/at91_ether.c +++ b/drivers/net/ethernet/cadence/at91_ether.c @@ -26,6 +26,7 @@ #include <linux/skbuff.h> #include <linux/dma-mapping.h> #include <linux/ethtool.h> +#include <linux/platform_data/macb.h> #include <linux/platform_device.h> #include <linux/clk.h> #include <linux/gfp.h> @@ -255,8 +256,7 @@ static void enable_phyirq(struct net_device *dev) unsigned int dsintr, irq_number; int status; - irq_number = lp->board_data.phy_irq_pin; - if (!irq_number) { + if (!gpio_is_valid(lp->board_data.phy_irq_pin)) { /* * PHY doesn't have an IRQ pin (RTL8201, DP83847, AC101L), * or board does not have it connected. @@ -265,6 +265,7 @@ static void enable_phyirq(struct net_device *dev) return; } + irq_number = lp->board_data.phy_irq_pin; status = request_irq(irq_number, at91ether_phy_interrupt, 0, dev->name, dev); if (status) { printk(KERN_ERR "at91_ether: PHY IRQ %d request failed - status %d!\n", irq_number, status); @@ -319,8 +320,7 @@ static void disable_phyirq(struct net_device *dev) unsigned int dsintr; unsigned int irq_number; - irq_number = lp->board_data.phy_irq_pin; - if (!irq_number) { + if (!gpio_is_valid(lp->board_data.phy_irq_pin)) { del_timer_sync(&lp->check_timer); return; } @@ -365,6 +365,7 @@ static void disable_phyirq(struct net_device *dev) disable_mdi(); spin_unlock_irq(&lp->lock); + irq_number = lp->board_data.phy_irq_pin; free_irq(irq_number, dev); /* Free interrupt handler */ } @@ -984,7 +985,7 @@ static const struct net_device_ops at91ether_netdev_ops = { static int __init at91ether_setup(unsigned long phy_type, unsigned short phy_address, struct platform_device *pdev, struct clk *ether_clk) { - struct at91_eth_data *board_data = pdev->dev.platform_data; + struct macb_platform_data *board_data = pdev->dev.platform_data; struct net_device *dev; struct at91_private *lp; unsigned int val; @@ -1077,7 +1078,7 @@ static int __init at91ether_setup(unsigned long phy_type, unsigned short phy_add netif_carrier_off(dev); /* will be enabled in open() */ /* If board has no PHY IRQ, use a timer to poll the PHY */ - if (!lp->board_data.phy_irq_pin) { + if (!gpio_is_valid(lp->board_data.phy_irq_pin)) { init_timer(&lp->check_timer); lp->check_timer.data = (unsigned long)dev; lp->check_timer.function = at91ether_check_link; @@ -1169,7 +1170,8 @@ static int __devexit at91ether_remove(struct platform_device *pdev) struct net_device *dev = platform_get_drvdata(pdev); struct at91_private *lp = netdev_priv(dev); - if (lp->board_data.phy_irq_pin >= 32) + if (gpio_is_valid(lp->board_data.phy_irq_pin) && + lp->board_data.phy_irq_pin >= 32) gpio_free(lp->board_data.phy_irq_pin); unregister_netdev(dev); @@ -1188,11 +1190,12 @@ static int at91ether_suspend(struct platform_device *pdev, pm_message_t mesg) { struct net_device *net_dev = platform_get_drvdata(pdev); struct at91_private *lp = netdev_priv(net_dev); - int phy_irq = lp->board_data.phy_irq_pin; if (netif_running(net_dev)) { - if (phy_irq) + if (gpio_is_valid(lp->board_data.phy_irq_pin)) { + int phy_irq = lp->board_data.phy_irq_pin; disable_irq(phy_irq); + } netif_stop_queue(net_dev); netif_device_detach(net_dev); @@ -1206,7 +1209,6 @@ static int at91ether_resume(struct platform_device *pdev) { struct net_device *net_dev = platform_get_drvdata(pdev); struct at91_private *lp = netdev_priv(net_dev); - int phy_irq = lp->board_data.phy_irq_pin; if (netif_running(net_dev)) { clk_enable(lp->ether_clk); @@ -1214,8 +1216,10 @@ static int at91ether_resume(struct platform_device *pdev) netif_device_attach(net_dev); netif_start_queue(net_dev); - if (phy_irq) + if (gpio_is_valid(lp->board_data.phy_irq_pin)) { + int phy_irq = lp->board_data.phy_irq_pin; enable_irq(phy_irq); + } } return 0; } diff --git a/drivers/net/ethernet/cadence/at91_ether.h b/drivers/net/ethernet/cadence/at91_ether.h index 353f4dab62be..3725fbb0defe 100644 --- a/drivers/net/ethernet/cadence/at91_ether.h +++ b/drivers/net/ethernet/cadence/at91_ether.h @@ -85,7 +85,9 @@ struct recv_desc_bufs struct at91_private { struct mii_if_info mii; /* ethtool support */ - struct at91_eth_data board_data; /* board-specific configuration */ + struct macb_platform_data board_data; /* board-specific + * configuration (shared with + * macb for common data */ struct clk *ether_clk; /* clock */ /* PHY */ diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c index a437b46e5490..f3d5c65d99cf 100644 --- a/drivers/net/ethernet/cadence/macb.c +++ b/drivers/net/ethernet/cadence/macb.c @@ -1,5 +1,5 @@ /* - * Atmel MACB Ethernet Controller driver + * Cadence MACB/GEM Ethernet Controller driver * * Copyright (C) 2004-2006 Atmel Corporation * @@ -8,6 +8,7 @@ * published by the Free Software Foundation. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/clk.h> #include <linux/module.h> #include <linux/moduleparam.h> @@ -19,11 +20,12 @@ #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/dma-mapping.h> +#include <linux/platform_data/macb.h> #include <linux/platform_device.h> #include <linux/phy.h> - -#include <mach/board.h> -#include <mach/cpu.h> +#include <linux/of.h> +#include <linux/of_device.h> +#include <linux/of_net.h> #include "macb.h" @@ -60,9 +62,9 @@ static void __macb_set_hwaddr(struct macb *bp) u16 top; bottom = cpu_to_le32(*((u32 *)bp->dev->dev_addr)); - macb_writel(bp, SA1B, bottom); + macb_or_gem_writel(bp, SA1B, bottom); top = cpu_to_le16(*((u16 *)(bp->dev->dev_addr + 4))); - macb_writel(bp, SA1T, top); + macb_or_gem_writel(bp, SA1T, top); } static void __init macb_get_hwaddr(struct macb *bp) @@ -71,8 +73,8 @@ static void __init macb_get_hwaddr(struct macb *bp) u16 top; u8 addr[6]; - bottom = macb_readl(bp, SA1B); - top = macb_readl(bp, SA1T); + bottom = macb_or_gem_readl(bp, SA1B); + top = macb_or_gem_readl(bp, SA1T); addr[0] = bottom & 0xff; addr[1] = (bottom >> 8) & 0xff; @@ -84,7 +86,7 @@ static void __init macb_get_hwaddr(struct macb *bp) if (is_valid_ether_addr(addr)) { memcpy(bp->dev->dev_addr, addr, sizeof(addr)); } else { - dev_info(&bp->pdev->dev, "invalid hw address, using random\n"); + netdev_info(bp->dev, "invalid hw address, using random\n"); random_ether_addr(bp->dev->dev_addr); } } @@ -178,11 +180,12 @@ static void macb_handle_link_change(struct net_device *dev) if (status_change) { if (phydev->link) - printk(KERN_INFO "%s: link up (%d/%s)\n", - dev->name, phydev->speed, - DUPLEX_FULL == phydev->duplex ? "Full":"Half"); + netdev_info(dev, "link up (%d/%s)\n", + phydev->speed, + phydev->duplex == DUPLEX_FULL ? + "Full" : "Half"); else - printk(KERN_INFO "%s: link down\n", dev->name); + netdev_info(dev, "link down\n"); } } @@ -191,25 +194,21 @@ static int macb_mii_probe(struct net_device *dev) { struct macb *bp = netdev_priv(dev); struct phy_device *phydev; - struct eth_platform_data *pdata; int ret; phydev = phy_find_first(bp->mii_bus); if (!phydev) { - printk (KERN_ERR "%s: no PHY found\n", dev->name); + netdev_err(dev, "no PHY found\n"); return -1; } - pdata = bp->pdev->dev.platform_data; /* TODO : add pin_irq */ /* attach the mac to the phy */ ret = phy_connect_direct(dev, phydev, &macb_handle_link_change, 0, - pdata && pdata->is_rmii ? - PHY_INTERFACE_MODE_RMII : - PHY_INTERFACE_MODE_MII); + bp->phy_interface); if (ret) { - printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name); + netdev_err(dev, "Could not attach to PHY\n"); return ret; } @@ -228,7 +227,7 @@ static int macb_mii_probe(struct net_device *dev) static int macb_mii_init(struct macb *bp) { - struct eth_platform_data *pdata; + struct macb_platform_data *pdata; int err = -ENXIO, i; /* Enable management port */ @@ -285,8 +284,8 @@ err_out: static void macb_update_stats(struct macb *bp) { u32 __iomem *reg = bp->regs + MACB_PFR; - u32 *p = &bp->hw_stats.rx_pause_frames; - u32 *end = &bp->hw_stats.tx_pause_frames + 1; + u32 *p = &bp->hw_stats.macb.rx_pause_frames; + u32 *end = &bp->hw_stats.macb.tx_pause_frames + 1; WARN_ON((unsigned long)(end - p - 1) != (MACB_TPF - MACB_PFR) / 4); @@ -303,14 +302,13 @@ static void macb_tx(struct macb *bp) status = macb_readl(bp, TSR); macb_writel(bp, TSR, status); - dev_dbg(&bp->pdev->dev, "macb_tx status = %02lx\n", - (unsigned long)status); + netdev_dbg(bp->dev, "macb_tx status = %02lx\n", (unsigned long)status); if (status & (MACB_BIT(UND) | MACB_BIT(TSR_RLE))) { int i; - printk(KERN_ERR "%s: TX %s, resetting buffers\n", - bp->dev->name, status & MACB_BIT(UND) ? - "underrun" : "retry limit exceeded"); + netdev_err(bp->dev, "TX %s, resetting buffers\n", + status & MACB_BIT(UND) ? + "underrun" : "retry limit exceeded"); /* Transfer ongoing, disable transmitter, to avoid confusion */ if (status & MACB_BIT(TGO)) @@ -369,8 +367,8 @@ static void macb_tx(struct macb *bp) if (!(bufstat & MACB_BIT(TX_USED))) break; - dev_dbg(&bp->pdev->dev, "skb %u (data %p) TX complete\n", - tail, skb->data); + netdev_dbg(bp->dev, "skb %u (data %p) TX complete\n", + tail, skb->data); dma_unmap_single(&bp->pdev->dev, rp->mapping, skb->len, DMA_TO_DEVICE); bp->stats.tx_packets++; @@ -395,8 +393,8 @@ static int macb_rx_frame(struct macb *bp, unsigned int first_frag, len = MACB_BFEXT(RX_FRMLEN, bp->rx_ring[last_frag].ctrl); - dev_dbg(&bp->pdev->dev, "macb_rx_frame frags %u - %u (len %u)\n", - first_frag, last_frag, len); + netdev_dbg(bp->dev, "macb_rx_frame frags %u - %u (len %u)\n", + first_frag, last_frag, len); skb = dev_alloc_skb(len + RX_OFFSET); if (!skb) { @@ -437,8 +435,8 @@ static int macb_rx_frame(struct macb *bp, unsigned int first_frag, bp->stats.rx_packets++; bp->stats.rx_bytes += len; - dev_dbg(&bp->pdev->dev, "received skb of length %u, csum: %08x\n", - skb->len, skb->csum); + netdev_dbg(bp->dev, "received skb of length %u, csum: %08x\n", + skb->len, skb->csum); netif_receive_skb(skb); return 0; @@ -515,8 +513,8 @@ static int macb_poll(struct napi_struct *napi, int budget) work_done = 0; - dev_dbg(&bp->pdev->dev, "poll: status = %08lx, budget = %d\n", - (unsigned long)status, budget); + netdev_dbg(bp->dev, "poll: status = %08lx, budget = %d\n", + (unsigned long)status, budget); work_done = macb_rx(bp, budget); if (work_done < budget) { @@ -565,8 +563,7 @@ static irqreturn_t macb_interrupt(int irq, void *dev_id) macb_writel(bp, IDR, MACB_RX_INT_FLAGS); if (napi_schedule_prep(&bp->napi)) { - dev_dbg(&bp->pdev->dev, - "scheduling RX softirq\n"); + netdev_dbg(bp->dev, "scheduling RX softirq\n"); __napi_schedule(&bp->napi); } } @@ -582,16 +579,19 @@ static irqreturn_t macb_interrupt(int irq, void *dev_id) if (status & MACB_BIT(ISR_ROVR)) { /* We missed at least one packet */ - bp->hw_stats.rx_overruns++; + if (macb_is_gem(bp)) + bp->hw_stats.gem.rx_overruns++; + else + bp->hw_stats.macb.rx_overruns++; } if (status & MACB_BIT(HRESP)) { /* - * TODO: Reset the hardware, and maybe move the printk - * to a lower-priority context as well (work queue?) + * TODO: Reset the hardware, and maybe move the + * netdev_err to a lower-priority context as well + * (work queue?) */ - printk(KERN_ERR "%s: DMA bus error: HRESP not OK\n", - dev->name); + netdev_err(dev, "DMA bus error: HRESP not OK\n"); } status = macb_readl(bp, ISR); @@ -626,16 +626,12 @@ static int macb_start_xmit(struct sk_buff *skb, struct net_device *dev) unsigned long flags; #ifdef DEBUG - int i; - dev_dbg(&bp->pdev->dev, - "start_xmit: len %u head %p data %p tail %p end %p\n", - skb->len, skb->head, skb->data, - skb_tail_pointer(skb), skb_end_pointer(skb)); - dev_dbg(&bp->pdev->dev, - "data:"); - for (i = 0; i < 16; i++) - printk(" %02x", (unsigned int)skb->data[i]); - printk("\n"); + netdev_dbg(bp->dev, + "start_xmit: len %u head %p data %p tail %p end %p\n", + skb->len, skb->head, skb->data, + skb_tail_pointer(skb), skb_end_pointer(skb)); + print_hex_dump(KERN_DEBUG, "data: ", DUMP_PREFIX_OFFSET, 16, 1, + skb->data, 16, true); #endif len = skb->len; @@ -645,21 +641,20 @@ static int macb_start_xmit(struct sk_buff *skb, struct net_device *dev) if (TX_BUFFS_AVAIL(bp) < 1) { netif_stop_queue(dev); spin_unlock_irqrestore(&bp->lock, flags); - dev_err(&bp->pdev->dev, - "BUG! Tx Ring full when queue awake!\n"); - dev_dbg(&bp->pdev->dev, "tx_head = %u, tx_tail = %u\n", - bp->tx_head, bp->tx_tail); + netdev_err(bp->dev, "BUG! Tx Ring full when queue awake!\n"); + netdev_dbg(bp->dev, "tx_head = %u, tx_tail = %u\n", + bp->tx_head, bp->tx_tail); return NETDEV_TX_BUSY; } entry = bp->tx_head; - dev_dbg(&bp->pdev->dev, "Allocated ring entry %u\n", entry); + netdev_dbg(bp->dev, "Allocated ring entry %u\n", entry); mapping = dma_map_single(&bp->pdev->dev, skb->data, len, DMA_TO_DEVICE); bp->tx_skb[entry].skb = skb; bp->tx_skb[entry].mapping = mapping; - dev_dbg(&bp->pdev->dev, "Mapped skb data %p to DMA addr %08lx\n", - skb->data, (unsigned long)mapping); + netdev_dbg(bp->dev, "Mapped skb data %p to DMA addr %08lx\n", + skb->data, (unsigned long)mapping); ctrl = MACB_BF(TX_FRMLEN, len); ctrl |= MACB_BIT(TX_LAST); @@ -723,27 +718,27 @@ static int macb_alloc_consistent(struct macb *bp) &bp->rx_ring_dma, GFP_KERNEL); if (!bp->rx_ring) goto out_err; - dev_dbg(&bp->pdev->dev, - "Allocated RX ring of %d bytes at %08lx (mapped %p)\n", - size, (unsigned long)bp->rx_ring_dma, bp->rx_ring); + netdev_dbg(bp->dev, + "Allocated RX ring of %d bytes at %08lx (mapped %p)\n", + size, (unsigned long)bp->rx_ring_dma, bp->rx_ring); size = TX_RING_BYTES; bp->tx_ring = dma_alloc_coherent(&bp->pdev->dev, size, &bp->tx_ring_dma, GFP_KERNEL); if (!bp->tx_ring) goto out_err; - dev_dbg(&bp->pdev->dev, - "Allocated TX ring of %d bytes at %08lx (mapped %p)\n", - size, (unsigned long)bp->tx_ring_dma, bp->tx_ring); + netdev_dbg(bp->dev, + "Allocated TX ring of %d bytes at %08lx (mapped %p)\n", + size, (unsigned long)bp->tx_ring_dma, bp->tx_ring); size = RX_RING_SIZE * RX_BUFFER_SIZE; bp->rx_buffers = dma_alloc_coherent(&bp->pdev->dev, size, &bp->rx_buffers_dma, GFP_KERNEL); if (!bp->rx_buffers) goto out_err; - dev_dbg(&bp->pdev->dev, - "Allocated RX buffers of %d bytes at %08lx (mapped %p)\n", - size, (unsigned long)bp->rx_buffers_dma, bp->rx_buffers); + netdev_dbg(bp->dev, + "Allocated RX buffers of %d bytes at %08lx (mapped %p)\n", + size, (unsigned long)bp->rx_buffers_dma, bp->rx_buffers); return 0; @@ -797,6 +792,84 @@ static void macb_reset_hw(struct macb *bp) macb_readl(bp, ISR); } +static u32 gem_mdc_clk_div(struct macb *bp) +{ + u32 config; + unsigned long pclk_hz = clk_get_rate(bp->pclk); + + if (pclk_hz <= 20000000) + config = GEM_BF(CLK, GEM_CLK_DIV8); + else if (pclk_hz <= 40000000) + config = GEM_BF(CLK, GEM_CLK_DIV16); + else if (pclk_hz <= 80000000) + config = GEM_BF(CLK, GEM_CLK_DIV32); + else if (pclk_hz <= 120000000) + config = GEM_BF(CLK, GEM_CLK_DIV48); + else if (pclk_hz <= 160000000) + config = GEM_BF(CLK, GEM_CLK_DIV64); + else + config = GEM_BF(CLK, GEM_CLK_DIV96); + + return config; +} + +static u32 macb_mdc_clk_div(struct macb *bp) +{ + u32 config; + unsigned long pclk_hz; + + if (macb_is_gem(bp)) + return gem_mdc_clk_div(bp); + + pclk_hz = clk_get_rate(bp->pclk); + if (pclk_hz <= 20000000) + config = MACB_BF(CLK, MACB_CLK_DIV8); + else if (pclk_hz <= 40000000) + config = MACB_BF(CLK, MACB_CLK_DIV16); + else if (pclk_hz <= 80000000) + config = MACB_BF(CLK, MACB_CLK_DIV32); + else + config = MACB_BF(CLK, MACB_CLK_DIV64); + + return config; +} + +/* + * Get the DMA bus width field of the network configuration register that we + * should program. We find the width from decoding the design configuration + * register to find the maximum supported data bus width. + */ +static u32 macb_dbw(struct macb *bp) +{ + if (!macb_is_gem(bp)) + return 0; + + switch (GEM_BFEXT(DBWDEF, gem_readl(bp, DCFG1))) { + case 4: + return GEM_BF(DBW, GEM_DBW128); + case 2: + return GEM_BF(DBW, GEM_DBW64); + case 1: + default: + return GEM_BF(DBW, GEM_DBW32); + } +} + +/* + * Configure the receive DMA engine to use the correct receive buffer size. + * This is a configurable parameter for GEM. + */ +static void macb_configure_dma(struct macb *bp) +{ + u32 dmacfg; + + if (macb_is_gem(bp)) { + dmacfg = gem_readl(bp, DMACFG) & ~GEM_BF(RXBS, -1L); + dmacfg |= GEM_BF(RXBS, RX_BUFFER_SIZE / 64); + gem_writel(bp, DMACFG, dmacfg); + } +} + static void macb_init_hw(struct macb *bp) { u32 config; @@ -804,7 +877,7 @@ static void macb_init_hw(struct macb *bp) macb_reset_hw(bp); __macb_set_hwaddr(bp); - config = macb_readl(bp, NCFGR) & MACB_BF(CLK, -1L); + config = macb_mdc_clk_div(bp); config |= MACB_BIT(PAE); /* PAuse Enable */ config |= MACB_BIT(DRFCS); /* Discard Rx FCS */ config |= MACB_BIT(BIG); /* Receive oversized frames */ @@ -812,8 +885,11 @@ static void macb_init_hw(struct macb *bp) config |= MACB_BIT(CAF); /* Copy All Frames */ if (!(bp->dev->flags & IFF_BROADCAST)) config |= MACB_BIT(NBC); /* No BroadCast */ + config |= macb_dbw(bp); macb_writel(bp, NCFGR, config); + macb_configure_dma(bp); + /* Initialize TX and RX buffers */ macb_writel(bp, RBQP, bp->rx_ring_dma); macb_writel(bp, TBQP, bp->tx_ring_dma); @@ -909,8 +985,8 @@ static void macb_sethashtable(struct net_device *dev) mc_filter[bitnr >> 5] |= 1 << (bitnr & 31); } - macb_writel(bp, HRB, mc_filter[0]); - macb_writel(bp, HRT, mc_filter[1]); + macb_or_gem_writel(bp, HRB, mc_filter[0]); + macb_or_gem_writel(bp, HRT, mc_filter[1]); } /* @@ -932,8 +1008,8 @@ static void macb_set_rx_mode(struct net_device *dev) if (dev->flags & IFF_ALLMULTI) { /* Enable all multicast mode */ - macb_writel(bp, HRB, -1); - macb_writel(bp, HRT, -1); + macb_or_gem_writel(bp, HRB, -1); + macb_or_gem_writel(bp, HRT, -1); cfg |= MACB_BIT(NCFGR_MTI); } else if (!netdev_mc_empty(dev)) { /* Enable specific multicasts */ @@ -941,8 +1017,8 @@ static void macb_set_rx_mode(struct net_device *dev) cfg |= MACB_BIT(NCFGR_MTI); } else if (dev->flags & (~IFF_ALLMULTI)) { /* Disable all multicast mode */ - macb_writel(bp, HRB, 0); - macb_writel(bp, HRT, 0); + macb_or_gem_writel(bp, HRB, 0); + macb_or_gem_writel(bp, HRT, 0); cfg &= ~MACB_BIT(NCFGR_MTI); } @@ -954,7 +1030,7 @@ static int macb_open(struct net_device *dev) struct macb *bp = netdev_priv(dev); int err; - dev_dbg(&bp->pdev->dev, "open\n"); + netdev_dbg(bp->dev, "open\n"); /* if the phy is not yet register, retry later*/ if (!bp->phy_dev) @@ -965,9 +1041,8 @@ static int macb_open(struct net_device *dev) err = macb_alloc_consistent(bp); if (err) { - printk(KERN_ERR - "%s: Unable to allocate DMA memory (error %d)\n", - dev->name, err); + netdev_err(dev, "Unable to allocate DMA memory (error %d)\n", + err); return err; } @@ -1005,11 +1080,62 @@ static int macb_close(struct net_device *dev) return 0; } +static void gem_update_stats(struct macb *bp) +{ + u32 __iomem *reg = bp->regs + GEM_OTX; + u32 *p = &bp->hw_stats.gem.tx_octets_31_0; + u32 *end = &bp->hw_stats.gem.rx_udp_checksum_errors + 1; + + for (; p < end; p++, reg++) + *p += __raw_readl(reg); +} + +static struct net_device_stats *gem_get_stats(struct macb *bp) +{ + struct gem_stats *hwstat = &bp->hw_stats.gem; + struct net_device_stats *nstat = &bp->stats; + + gem_update_stats(bp); + + nstat->rx_errors = (hwstat->rx_frame_check_sequence_errors + + hwstat->rx_alignment_errors + + hwstat->rx_resource_errors + + hwstat->rx_overruns + + hwstat->rx_oversize_frames + + hwstat->rx_jabbers + + hwstat->rx_undersized_frames + + hwstat->rx_length_field_frame_errors); + nstat->tx_errors = (hwstat->tx_late_collisions + + hwstat->tx_excessive_collisions + + hwstat->tx_underrun + + hwstat->tx_carrier_sense_errors); + nstat->multicast = hwstat->rx_multicast_frames; + nstat->collisions = (hwstat->tx_single_collision_frames + + hwstat->tx_multiple_collision_frames + + hwstat->tx_excessive_collisions); + nstat->rx_length_errors = (hwstat->rx_oversize_frames + + hwstat->rx_jabbers + + hwstat->rx_undersized_frames + + hwstat->rx_length_field_frame_errors); + nstat->rx_over_errors = hwstat->rx_resource_errors; + nstat->rx_crc_errors = hwstat->rx_frame_check_sequence_errors; + nstat->rx_frame_errors = hwstat->rx_alignment_errors; + nstat->rx_fifo_errors = hwstat->rx_overruns; + nstat->tx_aborted_errors = hwstat->tx_excessive_collisions; + nstat->tx_carrier_errors = hwstat->tx_carrier_sense_errors; + nstat->tx_fifo_errors = hwstat->tx_underrun; + + return nstat; +} + static struct net_device_stats *macb_get_stats(struct net_device *dev) { struct macb *bp = netdev_priv(dev); struct net_device_stats *nstat = &bp->stats; - struct macb_stats *hwstat = &bp->hw_stats; + struct macb_stats *hwstat = &bp->hw_stats.macb; + + if (macb_is_gem(bp)) + return gem_get_stats(bp); /* read stats from hardware */ macb_update_stats(bp); @@ -1117,14 +1243,59 @@ static const struct net_device_ops macb_netdev_ops = { #endif }; +#if defined(CONFIG_OF) +static const struct of_device_id macb_dt_ids[] = { + { .compatible = "cdns,at32ap7000-macb" }, + { .compatible = "cdns,at91sam9260-macb" }, + { .compatible = "cdns,macb" }, + { .compatible = "cdns,pc302-gem" }, + { .compatible = "cdns,gem" }, + { /* sentinel */ } +}; + +MODULE_DEVICE_TABLE(of, macb_dt_ids); + +static int __devinit macb_get_phy_mode_dt(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + + if (np) + return of_get_phy_mode(np); + + return -ENODEV; +} + +static int __devinit macb_get_hwaddr_dt(struct macb *bp) +{ + struct device_node *np = bp->pdev->dev.of_node; + if (np) { + const char *mac = of_get_mac_address(np); + if (mac) { + memcpy(bp->dev->dev_addr, mac, ETH_ALEN); + return 0; + } + } + + return -ENODEV; +} +#else +static int __devinit macb_get_phy_mode_dt(struct platform_device *pdev) +{ + return -ENODEV; +} +static int __devinit macb_get_hwaddr_dt(struct macb *bp) +{ + return -ENODEV; +} +#endif + static int __init macb_probe(struct platform_device *pdev) { - struct eth_platform_data *pdata; + struct macb_platform_data *pdata; struct resource *regs; struct net_device *dev; struct macb *bp; struct phy_device *phydev; - unsigned long pclk_hz; u32 config; int err = -ENXIO; @@ -1152,28 +1323,19 @@ static int __init macb_probe(struct platform_device *pdev) spin_lock_init(&bp->lock); -#if defined(CONFIG_ARCH_AT91) - bp->pclk = clk_get(&pdev->dev, "macb_clk"); + bp->pclk = clk_get(&pdev->dev, "pclk"); if (IS_ERR(bp->pclk)) { dev_err(&pdev->dev, "failed to get macb_clk\n"); goto err_out_free_dev; } clk_enable(bp->pclk); -#else - bp->pclk = clk_get(&pdev->dev, "pclk"); - if (IS_ERR(bp->pclk)) { - dev_err(&pdev->dev, "failed to get pclk\n"); - goto err_out_free_dev; - } + bp->hclk = clk_get(&pdev->dev, "hclk"); if (IS_ERR(bp->hclk)) { dev_err(&pdev->dev, "failed to get hclk\n"); goto err_out_put_pclk; } - - clk_enable(bp->pclk); clk_enable(bp->hclk); -#endif bp->regs = ioremap(regs->start, resource_size(regs)); if (!bp->regs) { @@ -1185,9 +1347,8 @@ static int __init macb_probe(struct platform_device *pdev) dev->irq = platform_get_irq(pdev, 0); err = request_irq(dev->irq, macb_interrupt, 0, dev->name, dev); if (err) { - printk(KERN_ERR - "%s: Unable to request IRQ %d (error %d)\n", - dev->name, dev->irq, err); + dev_err(&pdev->dev, "Unable to request IRQ %d (error %d)\n", + dev->irq, err); goto err_out_iounmap; } @@ -1198,31 +1359,37 @@ static int __init macb_probe(struct platform_device *pdev) dev->base_addr = regs->start; /* Set MII management clock divider */ - pclk_hz = clk_get_rate(bp->pclk); - if (pclk_hz <= 20000000) - config = MACB_BF(CLK, MACB_CLK_DIV8); - else if (pclk_hz <= 40000000) - config = MACB_BF(CLK, MACB_CLK_DIV16); - else if (pclk_hz <= 80000000) - config = MACB_BF(CLK, MACB_CLK_DIV32); - else - config = MACB_BF(CLK, MACB_CLK_DIV64); + config = macb_mdc_clk_div(bp); + config |= macb_dbw(bp); macb_writel(bp, NCFGR, config); - macb_get_hwaddr(bp); - pdata = pdev->dev.platform_data; + err = macb_get_hwaddr_dt(bp); + if (err < 0) + macb_get_hwaddr(bp); + + err = macb_get_phy_mode_dt(pdev); + if (err < 0) { + pdata = pdev->dev.platform_data; + if (pdata && pdata->is_rmii) + bp->phy_interface = PHY_INTERFACE_MODE_RMII; + else + bp->phy_interface = PHY_INTERFACE_MODE_MII; + } else { + bp->phy_interface = err; + } - if (pdata && pdata->is_rmii) + if (bp->phy_interface == PHY_INTERFACE_MODE_RMII) #if defined(CONFIG_ARCH_AT91) - macb_writel(bp, USRIO, (MACB_BIT(RMII) | MACB_BIT(CLKEN)) ); + macb_or_gem_writel(bp, USRIO, (MACB_BIT(RMII) | + MACB_BIT(CLKEN))); #else - macb_writel(bp, USRIO, 0); + macb_or_gem_writel(bp, USRIO, 0); #endif else #if defined(CONFIG_ARCH_AT91) - macb_writel(bp, USRIO, MACB_BIT(CLKEN)); + macb_or_gem_writel(bp, USRIO, MACB_BIT(CLKEN)); #else - macb_writel(bp, USRIO, MACB_BIT(MII)); + macb_or_gem_writel(bp, USRIO, MACB_BIT(MII)); #endif bp->tx_pending = DEF_TX_RING_PENDING; @@ -1239,13 +1406,13 @@ static int __init macb_probe(struct platform_device *pdev) platform_set_drvdata(pdev, dev); - printk(KERN_INFO "%s: Atmel MACB at 0x%08lx irq %d (%pM)\n", - dev->name, dev->base_addr, dev->irq, dev->dev_addr); + netdev_info(dev, "Cadence %s at 0x%08lx irq %d (%pM)\n", + macb_is_gem(bp) ? "GEM" : "MACB", dev->base_addr, + dev->irq, dev->dev_addr); phydev = bp->phy_dev; - printk(KERN_INFO "%s: attached PHY driver [%s] " - "(mii_bus:phy_addr=%s, irq=%d)\n", dev->name, - phydev->drv->name, dev_name(&phydev->dev), phydev->irq); + netdev_info(dev, "attached PHY driver [%s] (mii_bus:phy_addr=%s, irq=%d)\n", + phydev->drv->name, dev_name(&phydev->dev), phydev->irq); return 0; @@ -1256,14 +1423,10 @@ err_out_free_irq: err_out_iounmap: iounmap(bp->regs); err_out_disable_clocks: -#ifndef CONFIG_ARCH_AT91 clk_disable(bp->hclk); clk_put(bp->hclk); -#endif clk_disable(bp->pclk); -#ifndef CONFIG_ARCH_AT91 err_out_put_pclk: -#endif clk_put(bp->pclk); err_out_free_dev: free_netdev(dev); @@ -1289,10 +1452,8 @@ static int __exit macb_remove(struct platform_device *pdev) unregister_netdev(dev); free_irq(dev->irq, dev); iounmap(bp->regs); -#ifndef CONFIG_ARCH_AT91 clk_disable(bp->hclk); clk_put(bp->hclk); -#endif clk_disable(bp->pclk); clk_put(bp->pclk); free_netdev(dev); @@ -1310,9 +1471,7 @@ static int macb_suspend(struct platform_device *pdev, pm_message_t state) netif_device_detach(netdev); -#ifndef CONFIG_ARCH_AT91 clk_disable(bp->hclk); -#endif clk_disable(bp->pclk); return 0; @@ -1324,9 +1483,7 @@ static int macb_resume(struct platform_device *pdev) struct macb *bp = netdev_priv(netdev); clk_enable(bp->pclk); -#ifndef CONFIG_ARCH_AT91 clk_enable(bp->hclk); -#endif netif_device_attach(netdev); @@ -1344,6 +1501,7 @@ static struct platform_driver macb_driver = { .driver = { .name = "macb", .owner = THIS_MODULE, + .of_match_table = of_match_ptr(macb_dt_ids), }, }; @@ -1361,6 +1519,6 @@ module_init(macb_init); module_exit(macb_exit); MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("Atmel MACB Ethernet driver"); +MODULE_DESCRIPTION("Cadence MACB/GEM Ethernet driver"); MODULE_AUTHOR("Haavard Skinnemoen (Atmel)"); MODULE_ALIAS("platform:macb"); diff --git a/drivers/net/ethernet/cadence/macb.h b/drivers/net/ethernet/cadence/macb.h index d3212f6db703..335e288f5314 100644 --- a/drivers/net/ethernet/cadence/macb.h +++ b/drivers/net/ethernet/cadence/macb.h @@ -59,6 +59,24 @@ #define MACB_TPQ 0x00bc #define MACB_USRIO 0x00c0 #define MACB_WOL 0x00c4 +#define MACB_MID 0x00fc + +/* GEM register offsets. */ +#define GEM_NCFGR 0x0004 +#define GEM_USRIO 0x000c +#define GEM_DMACFG 0x0010 +#define GEM_HRB 0x0080 +#define GEM_HRT 0x0084 +#define GEM_SA1B 0x0088 +#define GEM_SA1T 0x008C +#define GEM_OTX 0x0100 +#define GEM_DCFG1 0x0280 +#define GEM_DCFG2 0x0284 +#define GEM_DCFG3 0x0288 +#define GEM_DCFG4 0x028c +#define GEM_DCFG5 0x0290 +#define GEM_DCFG6 0x0294 +#define GEM_DCFG7 0x0298 /* Bitfields in NCR */ #define MACB_LB_OFFSET 0 @@ -126,6 +144,21 @@ #define MACB_IRXFCS_OFFSET 19 #define MACB_IRXFCS_SIZE 1 +/* GEM specific NCFGR bitfields. */ +#define GEM_CLK_OFFSET 18 +#define GEM_CLK_SIZE 3 +#define GEM_DBW_OFFSET 21 +#define GEM_DBW_SIZE 2 + +/* Constants for data bus width. */ +#define GEM_DBW32 0 +#define GEM_DBW64 1 +#define GEM_DBW128 2 + +/* Bitfields in DMACFG. */ +#define GEM_RXBS_OFFSET 16 +#define GEM_RXBS_SIZE 8 + /* Bitfields in NSR */ #define MACB_NSR_LINK_OFFSET 0 #define MACB_NSR_LINK_SIZE 1 @@ -228,12 +261,30 @@ #define MACB_WOL_MTI_OFFSET 19 #define MACB_WOL_MTI_SIZE 1 +/* Bitfields in MID */ +#define MACB_IDNUM_OFFSET 16 +#define MACB_IDNUM_SIZE 16 +#define MACB_REV_OFFSET 0 +#define MACB_REV_SIZE 16 + +/* Bitfields in DCFG1. */ +#define GEM_DBWDEF_OFFSET 25 +#define GEM_DBWDEF_SIZE 3 + /* Constants for CLK */ #define MACB_CLK_DIV8 0 #define MACB_CLK_DIV16 1 #define MACB_CLK_DIV32 2 #define MACB_CLK_DIV64 3 +/* GEM specific constants for CLK. */ +#define GEM_CLK_DIV8 0 +#define GEM_CLK_DIV16 1 +#define GEM_CLK_DIV32 2 +#define GEM_CLK_DIV48 3 +#define GEM_CLK_DIV64 4 +#define GEM_CLK_DIV96 5 + /* Constants for MAN register */ #define MACB_MAN_SOF 1 #define MACB_MAN_WRITE 1 @@ -254,11 +305,52 @@ << MACB_##name##_OFFSET)) \ | MACB_BF(name,value)) +#define GEM_BIT(name) \ + (1 << GEM_##name##_OFFSET) +#define GEM_BF(name, value) \ + (((value) & ((1 << GEM_##name##_SIZE) - 1)) \ + << GEM_##name##_OFFSET) +#define GEM_BFEXT(name, value)\ + (((value) >> GEM_##name##_OFFSET) \ + & ((1 << GEM_##name##_SIZE) - 1)) +#define GEM_BFINS(name, value, old) \ + (((old) & ~(((1 << GEM_##name##_SIZE) - 1) \ + << GEM_##name##_OFFSET)) \ + | GEM_BF(name, value)) + /* Register access macros */ #define macb_readl(port,reg) \ __raw_readl((port)->regs + MACB_##reg) #define macb_writel(port,reg,value) \ __raw_writel((value), (port)->regs + MACB_##reg) +#define gem_readl(port, reg) \ + __raw_readl((port)->regs + GEM_##reg) +#define gem_writel(port, reg, value) \ + __raw_writel((value), (port)->regs + GEM_##reg) + +/* + * Conditional GEM/MACB macros. These perform the operation to the correct + * register dependent on whether the device is a GEM or a MACB. For registers + * and bitfields that are common across both devices, use macb_{read,write}l + * to avoid the cost of the conditional. + */ +#define macb_or_gem_writel(__bp, __reg, __value) \ + ({ \ + if (macb_is_gem((__bp))) \ + gem_writel((__bp), __reg, __value); \ + else \ + macb_writel((__bp), __reg, __value); \ + }) + +#define macb_or_gem_readl(__bp, __reg) \ + ({ \ + u32 __v; \ + if (macb_is_gem((__bp))) \ + __v = gem_readl((__bp), __reg); \ + else \ + __v = macb_readl((__bp), __reg); \ + __v; \ + }) struct dma_desc { u32 addr; @@ -358,6 +450,54 @@ struct macb_stats { u32 tx_pause_frames; }; +struct gem_stats { + u32 tx_octets_31_0; + u32 tx_octets_47_32; + u32 tx_frames; + u32 tx_broadcast_frames; + u32 tx_multicast_frames; + u32 tx_pause_frames; + u32 tx_64_byte_frames; + u32 tx_65_127_byte_frames; + u32 tx_128_255_byte_frames; + u32 tx_256_511_byte_frames; + u32 tx_512_1023_byte_frames; + u32 tx_1024_1518_byte_frames; + u32 tx_greater_than_1518_byte_frames; + u32 tx_underrun; + u32 tx_single_collision_frames; + u32 tx_multiple_collision_frames; + u32 tx_excessive_collisions; + u32 tx_late_collisions; + u32 tx_deferred_frames; + u32 tx_carrier_sense_errors; + u32 rx_octets_31_0; + u32 rx_octets_47_32; + u32 rx_frames; + u32 rx_broadcast_frames; + u32 rx_multicast_frames; + u32 rx_pause_frames; + u32 rx_64_byte_frames; + u32 rx_65_127_byte_frames; + u32 rx_128_255_byte_frames; + u32 rx_256_511_byte_frames; + u32 rx_512_1023_byte_frames; + u32 rx_1024_1518_byte_frames; + u32 rx_greater_than_1518_byte_frames; + u32 rx_undersized_frames; + u32 rx_oversize_frames; + u32 rx_jabbers; + u32 rx_frame_check_sequence_errors; + u32 rx_length_field_frame_errors; + u32 rx_symbol_errors; + u32 rx_alignment_errors; + u32 rx_resource_errors; + u32 rx_overruns; + u32 rx_ip_header_checksum_errors; + u32 rx_tcp_checksum_errors; + u32 rx_udp_checksum_errors; +}; + struct macb { void __iomem *regs; @@ -376,7 +516,10 @@ struct macb { struct net_device *dev; struct napi_struct napi; struct net_device_stats stats; - struct macb_stats hw_stats; + union { + struct macb_stats macb; + struct gem_stats gem; + } hw_stats; dma_addr_t rx_ring_dma; dma_addr_t tx_ring_dma; @@ -389,6 +532,13 @@ struct macb { unsigned int link; unsigned int speed; unsigned int duplex; + + phy_interface_t phy_interface; }; +static inline bool macb_is_gem(struct macb *bp) +{ + return MACB_BFEXT(IDNUM, macb_readl(bp, MID)) == 0x2; +} + #endif /* _MACB_H */ diff --git a/drivers/pcmcia/pxa2xx_cm_x255.c b/drivers/pcmcia/pxa2xx_cm_x255.c index 0b4f946cf13a..31ab6ddf52c9 100644 --- a/drivers/pcmcia/pxa2xx_cm_x255.c +++ b/drivers/pcmcia/pxa2xx_cm_x255.c @@ -16,8 +16,6 @@ #include <linux/gpio.h> #include <linux/export.h> -#include <asm/mach-types.h> - #include "soc_common.h" #define GPIO_PCMCIA_SKTSEL (54) @@ -27,15 +25,15 @@ #define GPIO_PCMCIA_S1_RDYINT (8) #define GPIO_PCMCIA_RESET (9) -#define PCMCIA_S0_CD_VALID IRQ_GPIO(GPIO_PCMCIA_S0_CD_VALID) -#define PCMCIA_S1_CD_VALID IRQ_GPIO(GPIO_PCMCIA_S1_CD_VALID) -#define PCMCIA_S0_RDYINT IRQ_GPIO(GPIO_PCMCIA_S0_RDYINT) -#define PCMCIA_S1_RDYINT IRQ_GPIO(GPIO_PCMCIA_S1_RDYINT) +#define PCMCIA_S0_CD_VALID gpio_to_irq(GPIO_PCMCIA_S0_CD_VALID) +#define PCMCIA_S1_CD_VALID gpio_to_irq(GPIO_PCMCIA_S1_CD_VALID) +#define PCMCIA_S0_RDYINT gpio_to_irq(GPIO_PCMCIA_S0_RDYINT) +#define PCMCIA_S1_RDYINT gpio_to_irq(GPIO_PCMCIA_S1_RDYINT) static struct pcmcia_irqs irqs[] = { - { 0, PCMCIA_S0_CD_VALID, "PCMCIA0 CD" }, - { 1, PCMCIA_S1_CD_VALID, "PCMCIA1 CD" }, + { .sock = 0, .str = "PCMCIA0 CD" }, + { .sock = 1, .str = "PCMCIA1 CD" }, }; static int cmx255_pcmcia_hw_init(struct soc_pcmcia_socket *skt) @@ -46,6 +44,8 @@ static int cmx255_pcmcia_hw_init(struct soc_pcmcia_socket *skt) gpio_direction_output(GPIO_PCMCIA_RESET, 0); skt->socket.pci_irq = skt->nr == 0 ? PCMCIA_S0_RDYINT : PCMCIA_S1_RDYINT; + irqs[0].irq = PCMCIA_S0_CD_VALID; + irqs[1].irq = PCMCIA_S1_CD_VALID; ret = soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs)); if (!ret) gpio_free(GPIO_PCMCIA_RESET); diff --git a/drivers/pcmcia/pxa2xx_cm_x270.c b/drivers/pcmcia/pxa2xx_cm_x270.c index 923f315926ef..3dc7621a0767 100644 --- a/drivers/pcmcia/pxa2xx_cm_x270.c +++ b/drivers/pcmcia/pxa2xx_cm_x270.c @@ -16,20 +16,18 @@ #include <linux/gpio.h> #include <linux/export.h> -#include <asm/mach-types.h> - #include "soc_common.h" #define GPIO_PCMCIA_S0_CD_VALID (84) #define GPIO_PCMCIA_S0_RDYINT (82) #define GPIO_PCMCIA_RESET (53) -#define PCMCIA_S0_CD_VALID IRQ_GPIO(GPIO_PCMCIA_S0_CD_VALID) -#define PCMCIA_S0_RDYINT IRQ_GPIO(GPIO_PCMCIA_S0_RDYINT) +#define PCMCIA_S0_CD_VALID gpio_to_irq(GPIO_PCMCIA_S0_CD_VALID) +#define PCMCIA_S0_RDYINT gpio_to_irq(GPIO_PCMCIA_S0_RDYINT) static struct pcmcia_irqs irqs[] = { - { 0, PCMCIA_S0_CD_VALID, "PCMCIA0 CD" }, + { .sock = 0, .str = "PCMCIA0 CD" }, }; static int cmx270_pcmcia_hw_init(struct soc_pcmcia_socket *skt) @@ -40,6 +38,7 @@ static int cmx270_pcmcia_hw_init(struct soc_pcmcia_socket *skt) gpio_direction_output(GPIO_PCMCIA_RESET, 0); skt->socket.pci_irq = PCMCIA_S0_RDYINT; + irqs[0].irq = PCMCIA_S0_CD_VALID; ret = soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs)); if (!ret) gpio_free(GPIO_PCMCIA_RESET); diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index e39b0297bad1..568cefbd63a2 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -41,6 +41,7 @@ #include <linux/usb/ulpi.h> #include <plat/usb.h> #include <linux/regulator/consumer.h> +#include <linux/pm_runtime.h> /* EHCI Register Set */ #define EHCI_INSNREG04 (0xA0) @@ -190,11 +191,8 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) } } - ret = omap_usbhs_enable(dev); - if (ret) { - dev_err(dev, "failed to start usbhs with err %d\n", ret); - goto err_enable; - } + pm_runtime_enable(dev); + pm_runtime_get_sync(dev); /* * An undocumented "feature" in the OMAP3 EHCI controller, @@ -240,11 +238,8 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) return 0; err_add_hcd: - omap_usbhs_disable(dev); - -err_enable: disable_put_regulator(pdata); - usb_put_hcd(hcd); + pm_runtime_put_sync(dev); err_io: iounmap(regs); @@ -266,10 +261,12 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev) struct usb_hcd *hcd = dev_get_drvdata(dev); usb_remove_hcd(hcd); - omap_usbhs_disable(dev); disable_put_regulator(dev->platform_data); iounmap(hcd->regs); usb_put_hcd(hcd); + pm_runtime_put_sync(dev); + pm_runtime_disable(dev); + return 0; } diff --git a/drivers/usb/host/ohci-omap3.c b/drivers/usb/host/ohci-omap3.c index 516ebc4d6cc2..1b8133b6e451 100644 --- a/drivers/usb/host/ohci-omap3.c +++ b/drivers/usb/host/ohci-omap3.c @@ -31,6 +31,7 @@ #include <linux/platform_device.h> #include <plat/usb.h> +#include <linux/pm_runtime.h> /*-------------------------------------------------------------------------*/ @@ -134,7 +135,7 @@ static int __devinit ohci_hcd_omap3_probe(struct platform_device *pdev) int irq; if (usb_disabled()) - goto err_end; + return -ENODEV; if (!dev->parent) { dev_err(dev, "Missing parent device\n"); @@ -172,11 +173,8 @@ static int __devinit ohci_hcd_omap3_probe(struct platform_device *pdev) hcd->rsrc_len = resource_size(res); hcd->regs = regs; - ret = omap_usbhs_enable(dev); - if (ret) { - dev_dbg(dev, "failed to start ohci\n"); - goto err_end; - } + pm_runtime_enable(dev); + pm_runtime_get_sync(dev); ohci_hcd_init(hcd_to_ohci(hcd)); @@ -189,9 +187,7 @@ static int __devinit ohci_hcd_omap3_probe(struct platform_device *pdev) return 0; err_add_hcd: - omap_usbhs_disable(dev); - -err_end: + pm_runtime_put_sync(dev); usb_put_hcd(hcd); err_io: @@ -220,9 +216,9 @@ static int __devexit ohci_hcd_omap3_remove(struct platform_device *pdev) iounmap(hcd->regs); usb_remove_hcd(hcd); - omap_usbhs_disable(dev); + pm_runtime_put_sync(dev); + pm_runtime_disable(dev); usb_put_hcd(hcd); - return 0; } |