From e259a3aecbfb61981175ddc7fc02dd180da7d73e Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 20 Aug 2007 09:47:41 +0100 Subject: [ARM] pxa: convert PXA serial drivers to use platform resources Signed-off-by: Russell King --- drivers/serial/pxa.c | 139 ++++++++++++++++++++++----------------------------- 1 file changed, 61 insertions(+), 78 deletions(-) (limited to 'drivers') diff --git a/drivers/serial/pxa.c b/drivers/serial/pxa.c index e9c6cb391a2..59889f6a86b 100644 --- a/drivers/serial/pxa.c +++ b/drivers/serial/pxa.c @@ -582,7 +582,7 @@ serial_pxa_type(struct uart_port *port) #ifdef CONFIG_SERIAL_PXA_CONSOLE -static struct uart_pxa_port serial_pxa_ports[]; +static struct uart_pxa_port *serial_pxa_ports[4]; static struct uart_driver serial_pxa_reg; #define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE) @@ -632,7 +632,7 @@ static void serial_pxa_console_putchar(struct uart_port *port, int ch) static void serial_pxa_console_write(struct console *co, const char *s, unsigned int count) { - struct uart_pxa_port *up = &serial_pxa_ports[co->index]; + struct uart_pxa_port *up = serial_pxa_ports[co->index]; unsigned int ier; /* @@ -662,7 +662,9 @@ serial_pxa_console_setup(struct console *co, char *options) if (co->index == -1 || co->index >= serial_pxa_reg.nr) co->index = 0; - up = &serial_pxa_ports[co->index]; + up = serial_pxa_ports[co->index]; + if (!up) + return -ENODEV; if (options) uart_parse_options(options, &baud, &parity, &bits, &flow); @@ -680,15 +682,6 @@ static struct console serial_pxa_console = { .data = &serial_pxa_reg, }; -static int __init -serial_pxa_console_init(void) -{ - register_console(&serial_pxa_console); - return 0; -} - -console_initcall(serial_pxa_console_init); - #define PXA_CONSOLE &serial_pxa_console #else #define PXA_CONSOLE NULL @@ -714,73 +707,13 @@ struct uart_ops serial_pxa_pops = { .verify_port = serial_pxa_verify_port, }; -static struct uart_pxa_port serial_pxa_ports[] = { - { /* FFUART */ - .name = "FFUART", - .cken = CKEN_FFUART, - .port = { - .type = PORT_PXA, - .iotype = UPIO_MEM, - .membase = (void *)&FFUART, - .mapbase = __PREG(FFUART), - .irq = IRQ_FFUART, - .uartclk = 921600 * 16, - .fifosize = 64, - .ops = &serial_pxa_pops, - .line = 0, - }, - }, { /* BTUART */ - .name = "BTUART", - .cken = CKEN_BTUART, - .port = { - .type = PORT_PXA, - .iotype = UPIO_MEM, - .membase = (void *)&BTUART, - .mapbase = __PREG(BTUART), - .irq = IRQ_BTUART, - .uartclk = 921600 * 16, - .fifosize = 64, - .ops = &serial_pxa_pops, - .line = 1, - }, - }, { /* STUART */ - .name = "STUART", - .cken = CKEN_STUART, - .port = { - .type = PORT_PXA, - .iotype = UPIO_MEM, - .membase = (void *)&STUART, - .mapbase = __PREG(STUART), - .irq = IRQ_STUART, - .uartclk = 921600 * 16, - .fifosize = 64, - .ops = &serial_pxa_pops, - .line = 2, - }, - }, { /* HWUART */ - .name = "HWUART", - .cken = CKEN_HWUART, - .port = { - .type = PORT_PXA, - .iotype = UPIO_MEM, - .membase = (void *)&HWUART, - .mapbase = __PREG(HWUART), - .irq = IRQ_HWUART, - .uartclk = 921600 * 16, - .fifosize = 64, - .ops = &serial_pxa_pops, - .line = 3, - }, - } -}; - static struct uart_driver serial_pxa_reg = { .owner = THIS_MODULE, .driver_name = "PXA serial", .dev_name = "ttyS", .major = TTY_MAJOR, .minor = 64, - .nr = ARRAY_SIZE(serial_pxa_ports), + .nr = 4, .cons = PXA_CONSOLE, }; @@ -806,10 +739,60 @@ static int serial_pxa_resume(struct platform_device *dev) static int serial_pxa_probe(struct platform_device *dev) { - serial_pxa_ports[dev->id].port.dev = &dev->dev; - uart_add_one_port(&serial_pxa_reg, &serial_pxa_ports[dev->id].port); - platform_set_drvdata(dev, &serial_pxa_ports[dev->id]); + struct uart_pxa_port *sport; + struct resource *mmres, *irqres; + int ret; + + mmres = platform_get_resource(dev, IORESOURCE_MEM, 0); + irqres = platform_get_resource(dev, IORESOURCE_IRQ, 0); + if (!mmres || !irqres) + return -ENODEV; + + sport = kzalloc(sizeof(struct uart_pxa_port), GFP_KERNEL); + if (!sport) + return -ENOMEM; + + sport->port.type = PORT_PXA; + sport->port.iotype = UPIO_MEM; + sport->port.mapbase = mmres->start; + sport->port.irq = irqres->start; + sport->port.fifosize = 64; + sport->port.ops = &serial_pxa_pops; + sport->port.line = dev->id; + sport->port.dev = &dev->dev; + sport->port.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF; + sport->port.uartclk = 921600 * 16; + + /* + * Is it worth keeping this? + */ + if (mmres->start == __PREG(FFUART)) + sport->name = "FFUART"; + else if (mmres->start == __PREG(BTUART)) + sport->name = "BTUART"; + else if (mmres->start == __PREG(STUART)) + sport->name = "STUART"; + else if (mmres->start == __PREG(HWUART)) + sport->name = "HWUART"; + else + sport->name = "???"; + + sport->port.membase = ioremap(mmres->start, mmres->end - mmres->start + 1); + if (!sport->port.membase) { + ret = -ENOMEM; + goto err_free; + } + + serial_pxa_ports[dev->id] = sport; + + uart_add_one_port(&serial_pxa_reg, &sport->port); + platform_set_drvdata(dev, sport); + return 0; + + err_free: + kfree(sport); + return ret; } static int serial_pxa_remove(struct platform_device *dev) @@ -818,8 +801,8 @@ static int serial_pxa_remove(struct platform_device *dev) platform_set_drvdata(dev, NULL); - if (sport) - uart_remove_one_port(&serial_pxa_reg, &sport->port); + uart_remove_one_port(&serial_pxa_reg, &sport->port); + kfree(sport); return 0; } -- cgit v1.2.3 From 72e3524c0b591c30c3a2e2058dd78327ec99efed Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 20 Aug 2007 10:18:42 +0100 Subject: [ARM] pxa: update pxafb to use clk support Signed-off-by: Russell King --- drivers/video/pxafb.c | 36 +++++++++++++++++++++++------------- drivers/video/pxafb.h | 1 + 2 files changed, 24 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c index a280a52f8ef..f9b12ab5964 100644 --- a/drivers/video/pxafb.c +++ b/drivers/video/pxafb.c @@ -37,6 +37,8 @@ #include #include #include +#include +#include #include #include @@ -506,15 +508,15 @@ static struct fb_ops pxafb_ops = { * * Factoring the 10^4 and 10^-12 out gives 10^-8 == 1 / 100000000 as used below. */ -static inline unsigned int get_pcd(unsigned int pixclock) +static inline unsigned int get_pcd(struct pxafb_info *fbi, unsigned int pixclock) { unsigned long long pcd; /* FIXME: Need to take into account Double Pixel Clock mode - * (DPC) bit? or perhaps set it based on the various clock - * speeds */ - - pcd = (unsigned long long)get_lcdclk_frequency_10khz() * pixclock; + * (DPC) bit? or perhaps set it based on the various clock + * speeds */ + pcd = (unsigned long long)(clk_get_rate(fbi->clk) / 10000); + pcd *= pixclock; do_div(pcd, 100000000 * 2); /* no need for this, since we should subtract 1 anyway. they cancel */ /* pcd += 1; */ /* make up for integer math truncations */ @@ -523,19 +525,21 @@ static inline unsigned int get_pcd(unsigned int pixclock) /* * Some touchscreens need hsync information from the video driver to - * function correctly. We export it here. + * function correctly. We export it here. Note that 'hsync_time' and + * the value returned from pxafb_get_hsync_time() is the *reciprocal* + * of the hsync period in seconds. */ static inline void set_hsync_time(struct pxafb_info *fbi, unsigned int pcd) { - unsigned long long htime; + unsigned long htime; if ((pcd == 0) || (fbi->fb.var.hsync_len == 0)) { fbi->hsync_time=0; return; } - htime = (unsigned long long)get_lcdclk_frequency_10khz() * 10000; - do_div(htime, pcd * fbi->fb.var.hsync_len); + htime = clk_get_rate(fbi->clk) / (pcd * fbi->fb.var.hsync_len); + fbi->hsync_time = htime; } @@ -560,7 +564,7 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var, struct pxafb_info * { struct pxafb_lcd_reg new_regs; u_long flags; - u_int lines_per_panel, pcd = get_pcd(var->pixclock); + u_int lines_per_panel, pcd = get_pcd(fbi, var->pixclock); pr_debug("pxafb: Configuring PXA LCD\n"); @@ -803,7 +807,7 @@ static void pxafb_enable_controller(struct pxafb_info *fbi) pr_debug("reg_lccr3 0x%08x\n", (unsigned int) fbi->reg_lccr3); /* enable LCD controller clock */ - pxa_set_cken(CKEN_LCD, 1); + clk_enable(fbi->clk); /* Sequence from 11.7.10 */ LCCR3 = fbi->reg_lccr3; @@ -840,7 +844,7 @@ static void pxafb_disable_controller(struct pxafb_info *fbi) remove_wait_queue(&fbi->ctrlr_wait, &wait); /* disable LCD controller clock */ - pxa_set_cken(CKEN_LCD, 0); + clk_disable(fbi->clk); } /* @@ -994,7 +998,7 @@ pxafb_freq_transition(struct notifier_block *nb, unsigned long val, void *data) break; case CPUFREQ_POSTCHANGE: - pcd = get_pcd(fbi->fb.var.pixclock); + pcd = get_pcd(fbi, fbi->fb.var.pixclock); set_hsync_time(fbi, pcd); fbi->reg_lccr3 = (fbi->reg_lccr3 & ~0xff) | LCCR3_PixClkDiv(pcd); set_ctrlr_state(fbi, C_ENABLE_CLKCHANGE); @@ -1119,6 +1123,12 @@ static struct pxafb_info * __init pxafb_init_fbinfo(struct device *dev) memset(fbi, 0, sizeof(struct pxafb_info)); fbi->dev = dev; + fbi->clk = clk_get(dev, "LCDCLK"); + if (IS_ERR(fbi->clk)) { + kfree(fbi); + return NULL; + } + strcpy(fbi->fb.fix.id, PXA_NAME); fbi->fb.fix.type = FB_TYPE_PACKED_PIXELS; diff --git a/drivers/video/pxafb.h b/drivers/video/pxafb.h index 7499a1c4bf7..f8605b807b0 100644 --- a/drivers/video/pxafb.h +++ b/drivers/video/pxafb.h @@ -40,6 +40,7 @@ struct pxafb_dma_descriptor { struct pxafb_info { struct fb_info fb; struct device *dev; + struct clk *clk; /* * These are the addresses we mapped -- cgit v1.2.3 From c3cef3f3c07bb98e023e4d5441e60538516a4741 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 20 Aug 2007 10:19:10 +0100 Subject: [ARM] pxa: update pxa i2c driver to use clk support Signed-off-by: Russell King --- drivers/i2c/busses/i2c-pxa.c | 45 ++++++++++++++++++++++++-------------------- 1 file changed, 25 insertions(+), 20 deletions(-) (limited to 'drivers') diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c index bb5466b27b5..00fad11733a 100644 --- a/drivers/i2c/busses/i2c-pxa.c +++ b/drivers/i2c/busses/i2c-pxa.c @@ -31,6 +31,8 @@ #include #include #include +#include +#include #include #include @@ -48,6 +50,7 @@ struct pxa_i2c { unsigned int slave_addr; struct i2c_adapter adap; + struct clk *clk; #ifdef CONFIG_I2C_PXA_SLAVE struct i2c_slave_client *slave; #endif @@ -869,6 +872,12 @@ static int i2c_pxa_probe(struct platform_device *dev) sprintf(i2c->adap.name, "pxa_i2c-i2c.%u", dev->id); + i2c->clk = clk_get(&dev->dev, "I2CCLK"); + if (IS_ERR(i2c->clk)) { + ret = PTR_ERR(i2c->clk); + goto eclk; + } + i2c->reg_base = ioremap(res->start, res_len(res)); if (!i2c->reg_base) { ret = -EIO; @@ -889,22 +898,19 @@ static int i2c_pxa_probe(struct platform_device *dev) } #endif + clk_enable(i2c->clk); +#ifdef CONFIG_PXA27x switch (dev->id) { case 0: -#ifdef CONFIG_PXA27x pxa_gpio_mode(GPIO117_I2CSCL_MD); pxa_gpio_mode(GPIO118_I2CSDA_MD); -#endif - pxa_set_cken(CKEN_I2C, 1); break; -#ifdef CONFIG_PXA27x case 1: local_irq_disable(); PCFR |= PCFR_PI2CEN; local_irq_enable(); - pxa_set_cken(CKEN_PWRI2C, 1); -#endif } +#endif ret = request_irq(irq, i2c_pxa_handler, IRQF_DISABLED, i2c->adap.name, i2c); @@ -948,19 +954,18 @@ static int i2c_pxa_probe(struct platform_device *dev) eadapt: free_irq(irq, i2c); ereqirq: - switch (dev->id) { - case 0: - pxa_set_cken(CKEN_I2C, 0); - break; + clk_disable(i2c->clk); + #ifdef CONFIG_PXA27x - case 1: - pxa_set_cken(CKEN_PWRI2C, 0); + if (dev->id == 1) { local_irq_disable(); PCFR &= ~PCFR_PI2CEN; local_irq_enable(); -#endif } +#endif eremap: + clk_put(i2c->clk); +eclk: kfree(i2c); emalloc: release_mem_region(res->start, res_len(res)); @@ -975,18 +980,18 @@ static int i2c_pxa_remove(struct platform_device *dev) i2c_del_adapter(&i2c->adap); free_irq(i2c->irq, i2c); - switch (dev->id) { - case 0: - pxa_set_cken(CKEN_I2C, 0); - break; + + clk_disable(i2c->clk); + clk_put(i2c->clk); + #ifdef CONFIG_PXA27x - case 1: - pxa_set_cken(CKEN_PWRI2C, 0); + if (dev->id == 1) { local_irq_disable(); PCFR &= ~PCFR_PI2CEN; local_irq_enable(); -#endif } +#endif + release_mem_region(i2c->iobase, i2c->iosize); kfree(i2c); -- cgit v1.2.3 From 22d8a73a8b39ef236c80ea73704884f7a7862193 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 20 Aug 2007 10:19:39 +0100 Subject: [ARM] pxa: update pxa27x keypad driver to use clk support Signed-off-by: Russell King --- drivers/input/keyboard/pxa27x_keyboard.c | 25 ++++++++++++++++++++----- 1 file changed, 20 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/input/keyboard/pxa27x_keyboard.c b/drivers/input/keyboard/pxa27x_keyboard.c index ebe5eacf299..b7061aa3881 100644 --- a/drivers/input/keyboard/pxa27x_keyboard.c +++ b/drivers/input/keyboard/pxa27x_keyboard.c @@ -23,6 +23,8 @@ #include #include #include +#include +#include #include #include @@ -40,6 +42,8 @@ col/2 == 2 ? KPASMKP2 : KPASMKP3) #define KPASMKPx_MKC(row, col) (1 << (row + 16 * (col % 2))) +static struct clk *pxakbd_clk; + static irqreturn_t pxakbd_irq_handler(int irq, void *dev_id) { struct platform_device *pdev = dev_id; @@ -104,7 +108,7 @@ static int pxakbd_open(struct input_dev *dev) KPREC = 0x7F; /* Enable unit clock */ - pxa_set_cken(CKEN_KEYPAD, 1); + clk_enable(pxakbd_clk); return 0; } @@ -112,7 +116,7 @@ static int pxakbd_open(struct input_dev *dev) static void pxakbd_close(struct input_dev *dev) { /* Disable clock unit */ - pxa_set_cken(CKEN_KEYPAD, 0); + clk_disable(pxakbd_clk); } #ifdef CONFIG_PM @@ -140,7 +144,8 @@ static int pxakbd_resume(struct platform_device *pdev) KPREC = pdata->reg_kprec; /* Enable unit clock */ - pxa_set_cken(CKEN_KEYPAD, 1); + clk_disable(pxakbd_clk); + clk_enable(pxakbd_clk); } mutex_unlock(&input_dev->mutex); @@ -158,11 +163,18 @@ static int __devinit pxakbd_probe(struct platform_device *pdev) struct input_dev *input_dev; int i, row, col, error; + pxakbd_clk = clk_get(&pdev->dev, "KBDCLK"); + if (IS_ERR(pxakbd_clk)) { + error = PTR_ERR(pxakbd_clk); + goto err_clk; + } + /* Create and register the input driver. */ input_dev = input_allocate_device(); if (!input_dev) { printk(KERN_ERR "Cannot request keypad device\n"); - return -ENOMEM; + error = -ENOMEM; + goto err_alloc; } input_dev->name = DRIVER_NAME; @@ -185,7 +197,6 @@ static int __devinit pxakbd_probe(struct platform_device *pdev) DRIVER_NAME, pdev); if (error) { printk(KERN_ERR "Cannot request keypad IRQ\n"); - pxa_set_cken(CKEN_KEYPAD, 0); goto err_free_dev; } @@ -217,6 +228,9 @@ static int __devinit pxakbd_probe(struct platform_device *pdev) free_irq(IRQ_KEYPAD, pdev); err_free_dev: input_free_device(input_dev); + err_alloc: + clk_put(pxakbd_clk); + err_clk: return error; } @@ -226,6 +240,7 @@ static int __devexit pxakbd_remove(struct platform_device *pdev) input_unregister_device(input_dev); free_irq(IRQ_KEYPAD, pdev); + clk_put(pxakbd_clk); platform_set_drvdata(pdev, NULL); return 0; -- cgit v1.2.3 From ebebd9b0a1463d5de89017ad59a6b9cd4044687f Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 20 Aug 2007 10:20:03 +0100 Subject: [ARM] pxa: update PXA MMC interface driver to use clk support Signed-off-by: Russell King --- drivers/mmc/host/pxamci.c | 43 ++++++++++++++++++++++++++++++++++++------- drivers/mmc/host/pxamci.h | 14 -------------- 2 files changed, 36 insertions(+), 21 deletions(-) (limited to 'drivers') diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c index 657901eecfc..0601e01aa2c 100644 --- a/drivers/mmc/host/pxamci.c +++ b/drivers/mmc/host/pxamci.c @@ -23,6 +23,8 @@ #include #include #include +#include +#include #include #include @@ -44,6 +46,8 @@ struct pxamci_host { spinlock_t lock; struct resource *res; void __iomem *base; + struct clk *clk; + unsigned long clkrate; int irq; int dma; unsigned int clkrt; @@ -119,7 +123,7 @@ static void pxamci_setup_data(struct pxamci_host *host, struct mmc_data *data) writel(nob, host->base + MMC_NOB); writel(data->blksz, host->base + MMC_BLKLEN); - clks = (unsigned long long)data->timeout_ns * CLOCKRATE; + clks = (unsigned long long)data->timeout_ns * host->clkrate; do_div(clks, 1000000000UL); timeout = (unsigned int)clks + (data->timeout_clks << host->clkrt); writel((timeout + 255) / 256, host->base + MMC_RDTO); @@ -365,18 +369,25 @@ static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) struct pxamci_host *host = mmc_priv(mmc); if (ios->clock) { - unsigned int clk = CLOCKRATE / ios->clock; - if (CLOCKRATE / clk > ios->clock) + unsigned long rate = host->clkrate; + unsigned int clk = rate / ios->clock; + + /* + * clk might result in a lower divisor than we + * desire. check for that condition and adjust + * as appropriate. + */ + if (rate / clk > ios->clock) clk <<= 1; host->clkrt = fls(clk) - 1; - pxa_set_cken(CKEN_MMC, 1); + clk_enable(host->clk); /* * we write clkrt on the next command */ } else { pxamci_stop_clock(host); - pxa_set_cken(CKEN_MMC, 0); + clk_disable(host->clk); } if (host->power_mode != ios->power_mode) { @@ -462,8 +473,6 @@ static int pxamci_probe(struct platform_device *pdev) } mmc->ops = &pxamci_ops; - mmc->f_min = CLOCKRATE_MIN; - mmc->f_max = CLOCKRATE_MAX; /* * We can do SG-DMA, but we don't because we never know how much @@ -490,6 +499,22 @@ static int pxamci_probe(struct platform_device *pdev) host->mmc = mmc; host->dma = -1; host->pdata = pdev->dev.platform_data; + + host->clk = clk_get(&pdev->dev, "MMCCLK"); + if (IS_ERR(host->clk)) { + ret = PTR_ERR(host->clk); + host->clk = NULL; + goto out; + } + + host->clkrate = clk_get_rate(host->clk); + + /* + * Calculate minimum clock rate, rounding up. + */ + mmc->f_min = (host->clkrate + 63) / 64; + mmc->f_max = host->clkrate; + mmc->ocr_avail = host->pdata ? host->pdata->ocr_mask : MMC_VDD_32_33|MMC_VDD_33_34; @@ -554,6 +579,8 @@ static int pxamci_probe(struct platform_device *pdev) iounmap(host->base); if (host->sg_cpu) dma_free_coherent(&pdev->dev, PAGE_SIZE, host->sg_cpu, host->sg_dma); + if (host->clk) + clk_put(host->clk); } if (mmc) mmc_free_host(mmc); @@ -588,6 +615,8 @@ static int pxamci_remove(struct platform_device *pdev) iounmap(host->base); dma_free_coherent(&pdev->dev, PAGE_SIZE, host->sg_cpu, host->sg_dma); + clk_put(host->clk); + release_resource(host->res); mmc_free_host(mmc); diff --git a/drivers/mmc/host/pxamci.h b/drivers/mmc/host/pxamci.h index 3153e779d46..748c7706f23 100644 --- a/drivers/mmc/host/pxamci.h +++ b/drivers/mmc/host/pxamci.h @@ -88,17 +88,3 @@ #define MMC_RXFIFO 0x0040 /* 8 bit */ #define MMC_TXFIFO 0x0044 /* 8 bit */ - -/* - * The base MMC clock rate - */ -#ifdef CONFIG_PXA27x -#define CLOCKRATE_MIN 304688 -#define CLOCKRATE_MAX 19500000 -#else -#define CLOCKRATE_MIN 312500 -#define CLOCKRATE_MAX 20000000 -#endif - -#define CLOCKRATE CLOCKRATE_MAX - -- cgit v1.2.3 From b049bd9de4959dd9e4b586d14b6de450a52c6f1f Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 20 Aug 2007 10:28:15 +0100 Subject: [ARM] pxa: update pxa serial driver to use clk support Signed-off-by: Russell King --- drivers/serial/pxa.c | 28 +++++++++++++++++++++++----- 1 file changed, 23 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/serial/pxa.c b/drivers/serial/pxa.c index 59889f6a86b..af3a011b2b2 100644 --- a/drivers/serial/pxa.c +++ b/drivers/serial/pxa.c @@ -42,6 +42,7 @@ #include #include #include +#include #include #include @@ -55,7 +56,7 @@ struct uart_pxa_port { unsigned char lcr; unsigned char mcr; unsigned int lsr_break_flag; - unsigned int cken; + struct clk *clk; char *name; }; @@ -351,6 +352,8 @@ static int serial_pxa_startup(struct uart_port *port) else up->mcr = 0; + up->port.uartclk = clk_get_rate(up->clk); + /* * Allocate the IRQ */ @@ -546,9 +549,11 @@ serial_pxa_pm(struct uart_port *port, unsigned int state, unsigned int oldstate) { struct uart_pxa_port *up = (struct uart_pxa_port *)port; - pxa_set_cken(up->cken, !state); + if (!state) - udelay(1); + clk_enable(up->clk); + else + clk_disable(up->clk); } static void serial_pxa_release_port(struct uart_port *port) @@ -635,6 +640,8 @@ serial_pxa_console_write(struct console *co, const char *s, unsigned int count) struct uart_pxa_port *up = serial_pxa_ports[co->index]; unsigned int ier; + clk_enable(up->clk); + /* * First save the IER then disable the interrupts */ @@ -649,6 +656,8 @@ serial_pxa_console_write(struct console *co, const char *s, unsigned int count) */ wait_for_xmitr(up); serial_out(up, UART_IER, ier); + + clk_disable(up->clk); } static int __init @@ -752,6 +761,12 @@ static int serial_pxa_probe(struct platform_device *dev) if (!sport) return -ENOMEM; + sport->clk = clk_get(&dev->dev, "UARTCLK"); + if (IS_ERR(sport->clk)) { + ret = PTR_ERR(sport->clk); + goto err_free; + } + sport->port.type = PORT_PXA; sport->port.iotype = UPIO_MEM; sport->port.mapbase = mmres->start; @@ -761,7 +776,7 @@ static int serial_pxa_probe(struct platform_device *dev) sport->port.line = dev->id; sport->port.dev = &dev->dev; sport->port.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF; - sport->port.uartclk = 921600 * 16; + sport->port.uartclk = clk_get_rate(sport->clk); /* * Is it worth keeping this? @@ -780,7 +795,7 @@ static int serial_pxa_probe(struct platform_device *dev) sport->port.membase = ioremap(mmres->start, mmres->end - mmres->start + 1); if (!sport->port.membase) { ret = -ENOMEM; - goto err_free; + goto err_clk; } serial_pxa_ports[dev->id] = sport; @@ -790,6 +805,8 @@ static int serial_pxa_probe(struct platform_device *dev) return 0; + err_clk: + clk_put(sport->clk); err_free: kfree(sport); return ret; @@ -802,6 +819,7 @@ static int serial_pxa_remove(struct platform_device *dev) platform_set_drvdata(dev, NULL); uart_remove_one_port(&serial_pxa_reg, &sport->port); + clk_put(sport->clk); kfree(sport); return 0; -- cgit v1.2.3 From 6549e6c9575c897514b183071a2b5d839cef9469 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 20 Aug 2007 10:33:35 +0100 Subject: [ARM] pxa: update PXA UDC driver to use clk support Note: this produces a WARN() dump. Signed-off-by: Russell King --- drivers/usb/gadget/pxa2xx_udc.c | 68 +++++++++++++++++++++++++---------------- drivers/usb/gadget/pxa2xx_udc.h | 1 + 2 files changed, 43 insertions(+), 26 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/gadget/pxa2xx_udc.c b/drivers/usb/gadget/pxa2xx_udc.c index 1407ad1c812..90d0d086b9b 100644 --- a/drivers/usb/gadget/pxa2xx_udc.c +++ b/drivers/usb/gadget/pxa2xx_udc.c @@ -43,6 +43,8 @@ #include #include #include +#include +#include #include #include @@ -1157,7 +1159,7 @@ static void udc_disable(struct pxa2xx_udc *dev) #ifdef CONFIG_ARCH_PXA /* Disable clock for USB device */ - pxa_set_cken(CKEN_USB, 0); + clk_disable(dev->clk); #endif ep0_idle (dev); @@ -1202,8 +1204,7 @@ static void udc_enable (struct pxa2xx_udc *dev) #ifdef CONFIG_ARCH_PXA /* Enable clock for USB device */ - pxa_set_cken(CKEN_USB, 1); - udelay(5); + clk_enable(dev->clk); #endif /* try to clear these bits before we enable the udc */ @@ -2137,6 +2138,14 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev) if (irq < 0) return -ENODEV; +#ifdef CONFIG_ARCH_PXA + dev->clk = clk_get(&pdev->dev, "UDCCLK"); + if (IS_ERR(dev->clk)) { + retval = PTR_ERR(dev->clk); + goto err_clk; + } +#endif + pr_debug("%s: IRQ %d%s%s\n", driver_name, irq, dev->has_cfr ? "" : " (!cfr)", SIZE_STR "(pio)" @@ -2152,11 +2161,10 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev) dev_dbg(&pdev->dev, "can't get vbus gpio %d, err: %d\n", dev->mach->gpio_vbus, retval); - return -EBUSY; + goto err_gpio_vbus; } gpio_direction_input(dev->mach->gpio_vbus); vbus_irq = gpio_to_irq(dev->mach->gpio_vbus); - set_irq_type(vbus_irq, IRQT_BOTHEDGE); } else vbus_irq = 0; @@ -2166,9 +2174,7 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev) dev_dbg(&pdev->dev, "can't get pullup gpio %d, err: %d\n", dev->mach->gpio_pullup, retval); - if (dev->mach->gpio_vbus) - gpio_free(dev->mach->gpio_vbus); - return -EBUSY; + goto err_gpio_pullup; } gpio_direction_output(dev->mach->gpio_pullup, 0); } @@ -2195,11 +2201,7 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev) if (retval != 0) { printk(KERN_ERR "%s: can't get irq %d, err %d\n", driver_name, irq, retval); - if (dev->mach->gpio_pullup) - gpio_free(dev->mach->gpio_pullup); - if (dev->mach->gpio_vbus) - gpio_free(dev->mach->gpio_vbus); - return -EBUSY; + goto err_irq1; } dev->got_irq = 1; @@ -2213,12 +2215,7 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev) printk(KERN_ERR "%s: can't get irq %i, err %d\n", driver_name, LUBBOCK_USB_DISC_IRQ, retval); lubbock_fail0: - free_irq(irq, dev); - if (dev->mach->gpio_pullup) - gpio_free(dev->mach->gpio_pullup); - if (dev->mach->gpio_vbus) - gpio_free(dev->mach->gpio_vbus); - return -EBUSY; + goto err_irq_lub; } retval = request_irq(LUBBOCK_USB_IRQ, lubbock_vbus_irq, @@ -2234,22 +2231,37 @@ lubbock_fail0: #endif if (vbus_irq) { retval = request_irq(vbus_irq, udc_vbus_irq, - IRQF_DISABLED | IRQF_SAMPLE_RANDOM, + IRQF_DISABLED | IRQF_SAMPLE_RANDOM | + IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, driver_name, dev); if (retval != 0) { printk(KERN_ERR "%s: can't get irq %i, err %d\n", driver_name, vbus_irq, retval); - free_irq(irq, dev); - if (dev->mach->gpio_pullup) - gpio_free(dev->mach->gpio_pullup); - if (dev->mach->gpio_vbus) - gpio_free(dev->mach->gpio_vbus); - return -EBUSY; + goto err_vbus_irq; } } create_proc_files(); return 0; + + err_vbus_irq: +#ifdef CONFIG_ARCH_LUBBOCK + free_irq(LUBBOCK_USB_DISC_IRQ, dev); + err_irq_lub: +#endif + free_irq(irq, dev); + err_irq1: + if (dev->mach->gpio_pullup) + gpio_free(dev->mach->gpio_pullup); + err_gpio_pullup: + if (dev->mach->gpio_vbus) + gpio_free(dev->mach->gpio_vbus); + err_gpio_vbus: +#ifdef CONFIG_ARCH_PXA + clk_put(dev->clk); + err_clk: +#endif + return retval; } static void pxa2xx_udc_shutdown(struct platform_device *_dev) @@ -2284,6 +2296,10 @@ static int __exit pxa2xx_udc_remove(struct platform_device *pdev) if (dev->mach->gpio_pullup) gpio_free(dev->mach->gpio_pullup); +#ifdef CONFIG_ARCH_PXA + clk_put(dev->clk); +#endif + platform_set_drvdata(pdev, NULL); the_controller = NULL; return 0; diff --git a/drivers/usb/gadget/pxa2xx_udc.h b/drivers/usb/gadget/pxa2xx_udc.h index 0e5d0e6fb0e..1db46d70577 100644 --- a/drivers/usb/gadget/pxa2xx_udc.h +++ b/drivers/usb/gadget/pxa2xx_udc.h @@ -125,6 +125,7 @@ struct pxa2xx_udc { struct timer_list timer; struct device *dev; + struct clk *clk; struct pxa2xx_udc_mach_info *mach; u64 dma_mask; struct pxa2xx_ep ep [PXA_UDC_NUM_ENDPOINTS]; -- cgit v1.2.3 From 82d553c67deef92c6c84ecb70afc56e99863060c Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 2 Sep 2007 17:09:23 +0100 Subject: [ARM] pxa: update pxa irda driver to use clk support Signed-off-by: Russell King --- drivers/net/irda/pxaficp_ir.c | 51 ++++++++++++++++++++++++++++++++++++------- 1 file changed, 43 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/net/irda/pxaficp_ir.c b/drivers/net/irda/pxaficp_ir.c index 55ff0fbe525..8c09344f58d 100644 --- a/drivers/net/irda/pxaficp_ir.c +++ b/drivers/net/irda/pxaficp_ir.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include @@ -87,8 +88,30 @@ struct pxa_irda { struct device *dev; struct pxaficp_platform_data *pdata; + struct clk *fir_clk; + struct clk *sir_clk; + struct clk *cur_clk; }; +static inline void pxa_irda_disable_clk(struct pxa_irda *si) +{ + if (si->cur_clk) + clk_disable(si->cur_clk); + si->cur_clk = NULL; +} + +static inline void pxa_irda_enable_firclk(struct pxa_irda *si) +{ + si->cur_clk = si->fir_clk; + clk_enable(si->fir_clk); +} + +static inline void pxa_irda_enable_sirclk(struct pxa_irda *si) +{ + si->cur_clk = si->sir_clk; + clk_enable(si->sir_clk); +} + #define IS_FIR(si) ((si)->speed >= 4000000) #define IRDA_FRAME_SIZE_LIMIT 2047 @@ -134,7 +157,7 @@ static int pxa_irda_set_speed(struct pxa_irda *si, int speed) DCSR(si->rxdma) &= ~DCSR_RUN; /* disable FICP */ ICCR0 = 0; - pxa_set_cken(CKEN_FICP, 0); + pxa_irda_disable_clk(si); /* set board transceiver to SIR mode */ si->pdata->transceiver_mode(si->dev, IR_SIRMODE); @@ -144,7 +167,7 @@ static int pxa_irda_set_speed(struct pxa_irda *si, int speed) pxa_gpio_mode(GPIO47_STTXD_MD); /* enable the STUART clock */ - pxa_set_cken(CKEN_STUART, 1); + pxa_irda_enable_sirclk(si); } /* disable STUART first */ @@ -169,7 +192,7 @@ static int pxa_irda_set_speed(struct pxa_irda *si, int speed) /* disable STUART */ STIER = 0; STISR = 0; - pxa_set_cken(CKEN_STUART, 0); + pxa_irda_disable_clk(si); /* disable FICP first */ ICCR0 = 0; @@ -182,7 +205,7 @@ static int pxa_irda_set_speed(struct pxa_irda *si, int speed) pxa_gpio_mode(GPIO47_ICPTXD_MD); /* enable the FICP clock */ - pxa_set_cken(CKEN_FICP, 1); + pxa_irda_enable_firclk(si); si->speed = speed; pxa_irda_fir_dma_rx_start(si); @@ -592,16 +615,15 @@ static void pxa_irda_shutdown(struct pxa_irda *si) STIER = 0; /* disable STUART SIR mode */ STISR = 0; - /* disable the STUART clock */ - pxa_set_cken(CKEN_STUART, 0); /* disable DMA */ DCSR(si->txdma) &= ~DCSR_RUN; DCSR(si->rxdma) &= ~DCSR_RUN; /* disable FICP */ ICCR0 = 0; - /* disable the FICP clock */ - pxa_set_cken(CKEN_FICP, 0); + + /* disable the STUART or FICP clocks */ + pxa_irda_disable_clk(si); DRCMR17 = 0; DRCMR18 = 0; @@ -792,6 +814,13 @@ static int pxa_irda_probe(struct platform_device *pdev) si->dev = &pdev->dev; si->pdata = pdev->dev.platform_data; + si->sir_clk = clk_get(&pdev->dev, "UARTCLK"); + si->fir_clk = clk_get(&pdev->dev, "FICPCLK"); + if (IS_ERR(si->sir_clk) || IS_ERR(si->fir_clk)) { + err = PTR_ERR(IS_ERR(si->sir_clk) ? si->sir_clk : si->fir_clk); + goto err_mem_4; + } + /* * Initialise the SIR buffers */ @@ -831,6 +860,10 @@ static int pxa_irda_probe(struct platform_device *pdev) err_mem_5: kfree(si->rx_buff.head); err_mem_4: + if (si->sir_clk && !IS_ERR(si->sir_clk)) + clk_put(si->sir_clk); + if (si->fir_clk && !IS_ERR(si->fir_clk)) + clk_put(si->fir_clk); free_netdev(dev); err_mem_3: release_mem_region(__PREG(FICP), 0x1c); @@ -850,6 +883,8 @@ static int pxa_irda_remove(struct platform_device *_dev) unregister_netdev(dev); kfree(si->tx_buff.head); kfree(si->rx_buff.head); + clk_put(si->fir_clk); + clk_put(si->sir_clk); free_netdev(dev); } -- cgit v1.2.3 From 97d97224ff361e08777fb33e0fd193ca877dac28 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 1 Sep 2007 21:25:09 +0100 Subject: [SERIAL] Fix console initialisation ordering Ensure pm callback is called upon initialisation to place port in correct power saving state. Ensure console is initialised prior to deciding whether to power down the port. Signed-off-by: Russell King --- drivers/serial/serial_core.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c index a055f58f342..a3bd3a3f41f 100644 --- a/drivers/serial/serial_core.c +++ b/drivers/serial/serial_core.c @@ -2126,6 +2126,14 @@ uart_configure_port(struct uart_driver *drv, struct uart_state *state, port->ops->set_mctrl(port, 0); spin_unlock_irqrestore(&port->lock, flags); + /* + * If this driver supports console, and it hasn't been + * successfully registered yet, try to re-register it. + * It may be that the port was not available. + */ + if (port->cons && !(port->cons->flags & CON_ENABLED)) + register_console(port->cons); + /* * Power down all ports by default, except the * console if we have one. @@ -2286,6 +2294,7 @@ int uart_add_one_port(struct uart_driver *drv, struct uart_port *port) } state->port = port; + state->pm_state = -1; port->cons = drv->cons; port->info = state->info; @@ -2307,15 +2316,6 @@ int uart_add_one_port(struct uart_driver *drv, struct uart_port *port) */ tty_register_device(drv->tty_driver, port->line, port->dev); - /* - * If this driver supports console, and it hasn't been - * successfully registered yet, try to re-register it. - * It may be that the port was not available. - */ - if (port->type != PORT_UNKNOWN && - port->cons && !(port->cons->flags & CON_ENABLED)) - register_console(port->cons); - /* * Ensure UPF_DEAD is not set. */ -- cgit v1.2.3 From 073ac8fd4a3e9a9265e8a59e0a79bc4b0b3822c3 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 1 Sep 2007 21:27:18 +0100 Subject: [NET] smc91x: fix PXA DMA support code The PXA DMA support code for smc91x doesn't pass a struct device to the dma_*map_single() functions, which leads to an oops in the dma bounce code. We have a struct device which was used to probe the SMC chip. Use it. (This patch is slightly larger because it requires struct smc_local to move into the header file.) Signed-off-by: Russell King --- drivers/net/smc91x.c | 55 ++++++-------------------------------------- drivers/net/smc91x.h | 64 +++++++++++++++++++++++++++++++++++++++++++++------- 2 files changed, 63 insertions(+), 56 deletions(-) (limited to 'drivers') diff --git a/drivers/net/smc91x.c b/drivers/net/smc91x.c index 24e610e711e..7da7589d45d 100644 --- a/drivers/net/smc91x.c +++ b/drivers/net/smc91x.c @@ -173,49 +173,6 @@ MODULE_LICENSE("GPL"); */ #define MII_DELAY 1 -/* store this information for the driver.. */ -struct smc_local { - /* - * If I have to wait until memory is available to send a - * packet, I will store the skbuff here, until I get the - * desired memory. Then, I'll send it out and free it. - */ - struct sk_buff *pending_tx_skb; - struct tasklet_struct tx_task; - - /* version/revision of the SMC91x chip */ - int version; - - /* Contains the current active transmission mode */ - int tcr_cur_mode; - - /* Contains the current active receive mode */ - int rcr_cur_mode; - - /* Contains the current active receive/phy mode */ - int rpc_cur_mode; - int ctl_rfduplx; - int ctl_rspeed; - - u32 msg_enable; - u32 phy_type; - struct mii_if_info mii; - - /* work queue */ - struct work_struct phy_configure; - struct net_device *dev; - int work_pending; - - spinlock_t lock; - -#ifdef SMC_USE_PXA_DMA - /* DMA needs the physical address of the chip */ - u_long physaddr; -#endif - void __iomem *base; - void __iomem *datacs; -}; - #if SMC_DEBUG > 0 #define DBG(n, args...) \ do { \ @@ -2215,17 +2172,19 @@ static int smc_drv_probe(struct platform_device *pdev) goto out_release_attrib; } - platform_set_drvdata(pdev, ndev); - ret = smc_probe(ndev, addr); - if (ret != 0) - goto out_iounmap; #ifdef SMC_USE_PXA_DMA - else { + { struct smc_local *lp = netdev_priv(ndev); + lp->device = &pdev->dev; lp->physaddr = res->start; } #endif + platform_set_drvdata(pdev, ndev); + ret = smc_probe(ndev, addr); + if (ret != 0) + goto out_iounmap; + smc_request_datacs(pdev, ndev); return 0; diff --git a/drivers/net/smc91x.h b/drivers/net/smc91x.h index af9e6bf5955..729fd28c08b 100644 --- a/drivers/net/smc91x.h +++ b/drivers/net/smc91x.h @@ -462,6 +462,52 @@ static inline void LPD7_SMC_outsw (unsigned char* a, int r, #endif + +/* store this information for the driver.. */ +struct smc_local { + /* + * If I have to wait until memory is available to send a + * packet, I will store the skbuff here, until I get the + * desired memory. Then, I'll send it out and free it. + */ + struct sk_buff *pending_tx_skb; + struct tasklet_struct tx_task; + + /* version/revision of the SMC91x chip */ + int version; + + /* Contains the current active transmission mode */ + int tcr_cur_mode; + + /* Contains the current active receive mode */ + int rcr_cur_mode; + + /* Contains the current active receive/phy mode */ + int rpc_cur_mode; + int ctl_rfduplx; + int ctl_rspeed; + + u32 msg_enable; + u32 phy_type; + struct mii_if_info mii; + + /* work queue */ + struct work_struct phy_configure; + struct net_device *dev; + int work_pending; + + spinlock_t lock; + +#ifdef SMC_USE_PXA_DMA + /* DMA needs the physical address of the chip */ + u_long physaddr; + struct device *device; +#endif + void __iomem *base; + void __iomem *datacs; +}; + + #ifdef SMC_USE_PXA_DMA /* * Let's use the DMA engine on the XScale PXA2xx for RX packets. This is @@ -476,11 +522,12 @@ static inline void LPD7_SMC_outsw (unsigned char* a, int r, #ifdef SMC_insl #undef SMC_insl #define SMC_insl(a, r, p, l) \ - smc_pxa_dma_insl(a, lp->physaddr, r, dev->dma, p, l) + smc_pxa_dma_insl(a, lp, r, dev->dma, p, l) static inline void -smc_pxa_dma_insl(void __iomem *ioaddr, u_long physaddr, int reg, int dma, +smc_pxa_dma_insl(void __iomem *ioaddr, struct smc_local *lp, int reg, int dma, u_char *buf, int len) { + u_long physaddr = lp->physaddr; dma_addr_t dmabuf; /* fallback if no DMA available */ @@ -497,7 +544,7 @@ smc_pxa_dma_insl(void __iomem *ioaddr, u_long physaddr, int reg, int dma, } len *= 4; - dmabuf = dma_map_single(NULL, buf, len, DMA_FROM_DEVICE); + dmabuf = dma_map_single(lp->device, buf, len, DMA_FROM_DEVICE); DCSR(dma) = DCSR_NODESC; DTADR(dma) = dmabuf; DSADR(dma) = physaddr + reg; @@ -507,18 +554,19 @@ smc_pxa_dma_insl(void __iomem *ioaddr, u_long physaddr, int reg, int dma, while (!(DCSR(dma) & DCSR_STOPSTATE)) cpu_relax(); DCSR(dma) = 0; - dma_unmap_single(NULL, dmabuf, len, DMA_FROM_DEVICE); + dma_unmap_single(lp->device, dmabuf, len, DMA_FROM_DEVICE); } #endif #ifdef SMC_insw #undef SMC_insw #define SMC_insw(a, r, p, l) \ - smc_pxa_dma_insw(a, lp->physaddr, r, dev->dma, p, l) + smc_pxa_dma_insw(a, lp, r, dev->dma, p, l) static inline void -smc_pxa_dma_insw(void __iomem *ioaddr, u_long physaddr, int reg, int dma, +smc_pxa_dma_insw(void __iomem *ioaddr, struct smc_local *lp, int reg, int dma, u_char *buf, int len) { + u_long physaddr = lp->physaddr; dma_addr_t dmabuf; /* fallback if no DMA available */ @@ -535,7 +583,7 @@ smc_pxa_dma_insw(void __iomem *ioaddr, u_long physaddr, int reg, int dma, } len *= 2; - dmabuf = dma_map_single(NULL, buf, len, DMA_FROM_DEVICE); + dmabuf = dma_map_single(lp->device, buf, len, DMA_FROM_DEVICE); DCSR(dma) = DCSR_NODESC; DTADR(dma) = dmabuf; DSADR(dma) = physaddr + reg; @@ -545,7 +593,7 @@ smc_pxa_dma_insw(void __iomem *ioaddr, u_long physaddr, int reg, int dma, while (!(DCSR(dma) & DCSR_STOPSTATE)) cpu_relax(); DCSR(dma) = 0; - dma_unmap_single(NULL, dmabuf, len, DMA_FROM_DEVICE); + dma_unmap_single(lp->device, dmabuf, len, DMA_FROM_DEVICE); } #endif -- cgit v1.2.3 From 693d9d95d6392074d63755b0df67865c63828fa4 Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 2 Oct 2007 11:28:26 +0100 Subject: [ARM] pxa: move pxa_set_mode() from pxa2xx_lubbock.c to lubbock.c Signed-off-by: Russell King --- drivers/pcmcia/pxa2xx_lubbock.c | 31 +------------------------------ 1 file changed, 1 insertion(+), 30 deletions(-) (limited to 'drivers') diff --git a/drivers/pcmcia/pxa2xx_lubbock.c b/drivers/pcmcia/pxa2xx_lubbock.c index 5e9b9a3fd02..1510d6cde3e 100644 --- a/drivers/pcmcia/pxa2xx_lubbock.c +++ b/drivers/pcmcia/pxa2xx_lubbock.c @@ -29,35 +29,6 @@ #include "sa1111_generic.h" -static int -lubbock_pcmcia_hw_init(struct soc_pcmcia_socket *skt) -{ - /* - * Setup default state of GPIO outputs - * before we enable them as outputs. - */ - GPSR(GPIO48_nPOE) = - GPIO_bit(GPIO48_nPOE) | - GPIO_bit(GPIO49_nPWE) | - GPIO_bit(GPIO50_nPIOR) | - GPIO_bit(GPIO51_nPIOW) | - GPIO_bit(GPIO52_nPCE_1) | - GPIO_bit(GPIO53_nPCE_2); - - pxa_gpio_mode(GPIO48_nPOE_MD); - pxa_gpio_mode(GPIO49_nPWE_MD); - pxa_gpio_mode(GPIO50_nPIOR_MD); - pxa_gpio_mode(GPIO51_nPIOW_MD); - pxa_gpio_mode(GPIO52_nPCE_1_MD); - pxa_gpio_mode(GPIO53_nPCE_2_MD); - pxa_gpio_mode(GPIO54_pSKTSEL_MD); - pxa_gpio_mode(GPIO55_nPREG_MD); - pxa_gpio_mode(GPIO56_nPWAIT_MD); - pxa_gpio_mode(GPIO57_nIOIS16_MD); - - return sa1111_pcmcia_hw_init(skt); -} - static int lubbock_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state) @@ -230,7 +201,7 @@ lubbock_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, static struct pcmcia_low_level lubbock_pcmcia_ops = { .owner = THIS_MODULE, - .hw_init = lubbock_pcmcia_hw_init, + .hw_init = sa1111_pcmcia_hw_init, .hw_shutdown = sa1111_pcmcia_hw_shutdown, .socket_state = sa1111_pcmcia_socket_state, .configure_socket = lubbock_pcmcia_configure_socket, -- cgit v1.2.3 From 39cbd4896e39e2b93c33635a9abc1a4405827e14 Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 2 Oct 2007 11:29:02 +0100 Subject: [ARM] pxa: move pxa_set_mode() from pxa2xx_mainstone.c to mainstone.c Signed-off-by: Russell King --- drivers/pcmcia/pxa2xx_mainstone.c | 18 ------------------ 1 file changed, 18 deletions(-) (limited to 'drivers') diff --git a/drivers/pcmcia/pxa2xx_mainstone.c b/drivers/pcmcia/pxa2xx_mainstone.c index 383107ba4bd..36c671c5fb6 100644 --- a/drivers/pcmcia/pxa2xx_mainstone.c +++ b/drivers/pcmcia/pxa2xx_mainstone.c @@ -43,24 +43,6 @@ static int mst_pcmcia_hw_init(struct soc_pcmcia_socket *skt) * Setup default state of GPIO outputs * before we enable them as outputs. */ - GPSR(GPIO48_nPOE) = - GPIO_bit(GPIO48_nPOE) | - GPIO_bit(GPIO49_nPWE) | - GPIO_bit(GPIO50_nPIOR) | - GPIO_bit(GPIO51_nPIOW) | - GPIO_bit(GPIO85_nPCE_1) | - GPIO_bit(GPIO54_nPCE_2); - - pxa_gpio_mode(GPIO48_nPOE_MD); - pxa_gpio_mode(GPIO49_nPWE_MD); - pxa_gpio_mode(GPIO50_nPIOR_MD); - pxa_gpio_mode(GPIO51_nPIOW_MD); - pxa_gpio_mode(GPIO85_nPCE_1_MD); - pxa_gpio_mode(GPIO54_nPCE_2_MD); - pxa_gpio_mode(GPIO79_pSKTSEL_MD); - pxa_gpio_mode(GPIO55_nPREG_MD); - pxa_gpio_mode(GPIO56_nPWAIT_MD); - pxa_gpio_mode(GPIO57_nIOIS16_MD); skt->irq = (skt->nr == 0) ? MAINSTONE_S0_IRQ : MAINSTONE_S1_IRQ; return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs)); -- cgit v1.2.3 From 3696a8a426f8caebd97463e9b5cf9f06c1c36759 Mon Sep 17 00:00:00 2001 From: Mike Rapoport Date: Sun, 23 Sep 2007 15:59:26 +0100 Subject: [ARM] 4576/1: CM-X270 machine support This patch provides core support for CM-X270 platform. Signed-off-by: Mike Rapoport Signed-off-by: Russell King --- drivers/leds/Kconfig | 6 +++ drivers/leds/Makefile | 1 + drivers/leds/leds-cm-x270.c | 122 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 129 insertions(+) create mode 100644 drivers/leds/leds-cm-x270.c (limited to 'drivers') diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index 3cb23210b91..257b44094e4 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -108,6 +108,12 @@ config LEDS_GPIO outputs. To be useful the particular board must have LEDs and they must be connected to the GPIO lines. +config LEDS_CM_X270 + tristate "LED Support for the CM-X270 LEDs" + depends on LEDS_CLASS && MACH_ARMCORE + help + This option enables support for the CM-X270 LEDs. + comment "LED Triggers" config LEDS_TRIGGERS diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index d2ca1abbc3d..a60de1b46c2 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -18,6 +18,7 @@ obj-$(CONFIG_LEDS_H1940) += leds-h1940.o obj-$(CONFIG_LEDS_COBALT_QUBE) += leds-cobalt-qube.o obj-$(CONFIG_LEDS_COBALT_RAQ) += leds-cobalt-raq.o obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o +obj-$(CONFIG_LEDS_CM_X270) += leds-cm-x270.o # LED Triggers obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o diff --git a/drivers/leds/leds-cm-x270.c b/drivers/leds/leds-cm-x270.c new file mode 100644 index 00000000000..9aebef02a97 --- /dev/null +++ b/drivers/leds/leds-cm-x270.c @@ -0,0 +1,122 @@ +/* + * drivers/leds/leds-cm-x270.c + * + * Copyright 2007 CompuLab Ltd. + * Author: Mike Rapoport + * + * Based on leds-corgi.c + * Author: Richard Purdie + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include +#include +#include +#include + +#include +#include + +#define GPIO_RED_LED (93) +#define GPIO_GREEN_LED (94) + +static void cmx270_red_set(struct led_classdev *led_cdev, + enum led_brightness value) +{ + if (value) + GPCR(GPIO_RED_LED) = GPIO_bit(GPIO_RED_LED); + else + GPSR(GPIO_RED_LED) = GPIO_bit(GPIO_RED_LED); +} + +static void cmx270_green_set(struct led_classdev *led_cdev, + enum led_brightness value) +{ + if (value) + GPCR(GPIO_GREEN_LED) = GPIO_bit(GPIO_GREEN_LED); + else + GPSR(GPIO_GREEN_LED) = GPIO_bit(GPIO_GREEN_LED); +} + +static struct led_classdev cmx270_red_led = { + .name = "cm-x270:red", + .default_trigger = "nand-disk", + .brightness_set = cmx270_red_set, +}; + +static struct led_classdev cmx270_green_led = { + .name = "cm-x270:green", + .default_trigger = "heartbeat", + .brightness_set = cmx270_green_set, +}; + +#ifdef CONFIG_PM +static int cmx270led_suspend(struct platform_device *dev, pm_message_t state) +{ + led_classdev_suspend(&cmx270_red_led); + led_classdev_suspend(&cmx270_green_led); + return 0; +} + +static int cmx270led_resume(struct platform_device *dev) +{ + led_classdev_resume(&cmx270_red_led); + led_classdev_resume(&cmx270_green_led); + return 0; +} +#endif + +static int cmx270led_probe(struct platform_device *pdev) +{ + int ret; + + ret = led_classdev_register(&pdev->dev, &cmx270_red_led); + if (ret < 0) + return ret; + + ret = led_classdev_register(&pdev->dev, &cmx270_green_led); + if (ret < 0) + led_classdev_unregister(&cmx270_red_led); + + return ret; +} + +static int cmx270led_remove(struct platform_device *pdev) +{ + led_classdev_unregister(&cmx270_red_led); + led_classdev_unregister(&cmx270_green_led); + return 0; +} + +static struct platform_driver cmx270led_driver = { + .probe = cmx270led_probe, + .remove = cmx270led_remove, +#ifdef CONFIG_PM + .suspend = cmx270led_suspend, + .resume = cmx270led_resume, +#endif + .driver = { + .name = "cm-x270-led", + }, +}; + +static int __init cmx270led_init(void) +{ + return platform_driver_register(&cmx270led_driver); +} + +static void __exit cmx270led_exit(void) +{ + platform_driver_unregister(&cmx270led_driver); +} + +module_init(cmx270led_init); +module_exit(cmx270led_exit); + +MODULE_AUTHOR("Mike Rapoport "); +MODULE_DESCRIPTION("CM-x270 LED driver"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 87944f3361fc033b73617aa663135c6e468957a7 Mon Sep 17 00:00:00 2001 From: Mike Rapoport Date: Sun, 23 Sep 2007 16:00:20 +0100 Subject: [ARM] 4578/1: CM-x270: PCMCIA support This patch provides support for PCMCIA on CM-X270 Signed-off-by: Mike Rapoport Signed-off-by: Russell King --- drivers/pcmcia/Makefile | 1 + drivers/pcmcia/pxa2xx_cm_x270.c | 175 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 176 insertions(+) create mode 100644 drivers/pcmcia/pxa2xx_cm_x270.c (limited to 'drivers') diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile index 4276965517f..dc7a4cb5d27 100644 --- a/drivers/pcmcia/Makefile +++ b/drivers/pcmcia/Makefile @@ -69,4 +69,5 @@ sa1100_cs-$(CONFIG_SA1100_SIMPAD) += sa1100_simpad.o pxa2xx_cs-$(CONFIG_ARCH_LUBBOCK) += pxa2xx_lubbock.o sa1111_generic.o pxa2xx_cs-$(CONFIG_MACH_MAINSTONE) += pxa2xx_mainstone.o pxa2xx_cs-$(CONFIG_PXA_SHARPSL) += pxa2xx_sharpsl.o +pxa2xx_cs-$(CONFIG_MACH_ARMCORE) += pxa2xx_cm_x270.o diff --git a/drivers/pcmcia/pxa2xx_cm_x270.c b/drivers/pcmcia/pxa2xx_cm_x270.c new file mode 100644 index 00000000000..fbf2f3a6984 --- /dev/null +++ b/drivers/pcmcia/pxa2xx_cm_x270.c @@ -0,0 +1,175 @@ +/* + * linux/drivers/pcmcia/pxa/pxa_cm_x270.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Compulab Ltd., 2003, 2007 + * Mike Rapoport + * + */ + +#include +#include +#include +#include +#include + +#include +#include + +#include +#include + +#include "soc_common.h" + +static struct pcmcia_irqs irqs[] = { + { 0, PCMCIA_S0_CD_VALID, "PCMCIA0 CD" }, + { 1, PCMCIA_S1_CD_VALID, "PCMCIA1 CD" }, +}; + +static int cmx270_pcmcia_hw_init(struct soc_pcmcia_socket *skt) +{ + GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) | + GPIO_bit(GPIO49_nPWE) | + GPIO_bit(GPIO50_nPIOR) | + GPIO_bit(GPIO51_nPIOW) | + GPIO_bit(GPIO85_nPCE_1) | + GPIO_bit(GPIO54_nPCE_2); + + pxa_gpio_mode(GPIO48_nPOE_MD); + pxa_gpio_mode(GPIO49_nPWE_MD); + pxa_gpio_mode(GPIO50_nPIOR_MD); + pxa_gpio_mode(GPIO51_nPIOW_MD); + pxa_gpio_mode(GPIO85_nPCE_1_MD); + pxa_gpio_mode(GPIO54_nPCE_2_MD); + pxa_gpio_mode(GPIO55_nPREG_MD); + pxa_gpio_mode(GPIO56_nPWAIT_MD); + pxa_gpio_mode(GPIO57_nIOIS16_MD); + + /* Reset signal */ + pxa_gpio_mode(GPIO53_nPCE_2 | GPIO_OUT); + GPCR(GPIO53_nPCE_2) = GPIO_bit(GPIO53_nPCE_2); + + set_irq_type(PCMCIA_S0_CD_VALID, IRQ_TYPE_EDGE_BOTH); + set_irq_type(PCMCIA_S1_CD_VALID, IRQ_TYPE_EDGE_BOTH); + + /* irq's for slots: */ + set_irq_type(PCMCIA_S0_RDYINT, IRQ_TYPE_EDGE_FALLING); + set_irq_type(PCMCIA_S1_RDYINT, IRQ_TYPE_EDGE_FALLING); + + skt->irq = (skt->nr == 0) ? PCMCIA_S0_RDYINT : PCMCIA_S1_RDYINT; + return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs)); +} + +static void cmx270_pcmcia_shutdown(struct soc_pcmcia_socket *skt) +{ + soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs)); + + set_irq_type(IRQ_TO_GPIO(PCMCIA_S0_CD_VALID), IRQ_TYPE_NONE); + set_irq_type(IRQ_TO_GPIO(PCMCIA_S1_CD_VALID), IRQ_TYPE_NONE); + + set_irq_type(IRQ_TO_GPIO(PCMCIA_S0_RDYINT), IRQ_TYPE_NONE); + set_irq_type(IRQ_TO_GPIO(PCMCIA_S1_RDYINT), IRQ_TYPE_NONE); +} + + +static void cmx270_pcmcia_socket_state(struct soc_pcmcia_socket *skt, + struct pcmcia_state *state) +{ + state->detect = (PCC_DETECT(skt->nr) == 0) ? 1 : 0; + state->ready = (PCC_READY(skt->nr) == 0) ? 0 : 1; + state->bvd1 = 1; + state->bvd2 = 1; + state->vs_3v = 0; + state->vs_Xv = 0; + state->wrprot = 0; /* not available */ +} + + +static int cmx270_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, + const socket_state_t *state) +{ + GPSR(GPIO49_nPWE) = GPIO_bit(GPIO49_nPWE); + pxa_gpio_mode(GPIO49_nPWE | GPIO_OUT); + + switch (skt->nr) { + case 0: + if (state->flags & SS_RESET) { + GPCR(GPIO49_nPWE) = GPIO_bit(GPIO49_nPWE); + GPSR(GPIO53_nPCE_2) = GPIO_bit(GPIO53_nPCE_2); + udelay(10); + GPCR(GPIO53_nPCE_2) = GPIO_bit(GPIO53_nPCE_2); + GPSR(GPIO49_nPWE) = GPIO_bit(GPIO49_nPWE); + } + break; + case 1: + if (state->flags & SS_RESET) { + GPCR(GPIO49_nPWE) = GPIO_bit(GPIO49_nPWE); + GPSR(GPIO53_nPCE_2) = GPIO_bit(GPIO53_nPCE_2); + udelay(10); + GPCR(GPIO53_nPCE_2) = GPIO_bit(GPIO53_nPCE_2); + GPSR(GPIO49_nPWE) = GPIO_bit(GPIO49_nPWE); + } + break; + } + + pxa_gpio_mode(GPIO49_nPWE_MD); + + return 0; +} + +static void cmx270_pcmcia_socket_init(struct soc_pcmcia_socket *skt) +{ +} + +static void cmx270_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) +{ +} + + +static struct pcmcia_low_level cmx270_pcmcia_ops = { + .owner = THIS_MODULE, + .hw_init = cmx270_pcmcia_hw_init, + .hw_shutdown = cmx270_pcmcia_shutdown, + .socket_state = cmx270_pcmcia_socket_state, + .configure_socket = cmx270_pcmcia_configure_socket, + .socket_init = cmx270_pcmcia_socket_init, + .socket_suspend = cmx270_pcmcia_socket_suspend, + .nr = 2, +}; + +static struct platform_device *cmx270_pcmcia_device; + +static int __init cmx270_pcmcia_init(void) +{ + int ret; + + cmx270_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); + + if (!cmx270_pcmcia_device) + return -ENOMEM; + + cmx270_pcmcia_device->dev.platform_data = &cmx270_pcmcia_ops; + + printk(KERN_INFO "Registering cm-x270 PCMCIA interface.\n"); + ret = platform_device_add(cmx270_pcmcia_device); + + if (ret) + platform_device_put(cmx270_pcmcia_device); + + return ret; +} + +static void __exit cmx270_pcmcia_exit(void) +{ + platform_device_unregister(cmx270_pcmcia_device); +} + +module_init(cmx270_pcmcia_init); +module_exit(cmx270_pcmcia_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Mike Rapoport "); +MODULE_DESCRIPTION("CM-x270 PCMCIA driver"); -- cgit v1.2.3