diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-28 11:39:19 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-28 11:39:19 -0800 |
commit | 81d6e59dabb1ae0c782e9eb7e3d88f699d25b314 (patch) | |
tree | 532afd14c119f1c95206ef0d23db9c4c26a0aa34 /drivers | |
parent | 4a6908a3a050aacc9c3a2f36b276b46c0629ad91 (diff) | |
parent | 59de580af1c2fd671b0cb27c41ff958859ae5288 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (132 commits)
sh: oprofile: Fix up the module build.
sh: add UIO support for JPU on SH7722.
serial: sh-sci: Fix up port pinmux for SH7366.
sh: mach-rsk: Use uImage generation by default for rsk7201/7203.
sh: mach-sh03: Fix up pata_platform build breakage.
sh: enable deferred io LCDC on Migo-R
video: sh_mobile_lcdcfb deferred io support
video: deferred io with physically contiguous memory
video: deferred io cleanup
video: fix deferred io fsync()
sh: add LCDC interrupt configuration to AP325 and Migo-R
sh_mobile_lcdc: use FB_SYS helpers instead of FB_CFB
sh: split coherent pages
sh: dma: Kill off ISA DMA wrapper.
sh: Conditionalize the code dumper on CONFIG_DUMP_CODE.
sh: Kill off the unused SH_ALPHANUMERIC debug option.
sh: Enable skipping of bss on debug platforms for sh32 also.
doc: Update sh cpufreq documentation.
sh: mrshpc_setup_windows() needs to be inline.
serial: sh-sci: sci_poll_get_char() is only used by CONFIG_CONSOLE_POLL.
...
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/i2c/busses/i2c-sh_mobile.c | 73 | ||||
-rw-r--r-- | drivers/input/keyboard/sh_keysc.c | 28 | ||||
-rw-r--r-- | drivers/media/video/Kconfig | 2 | ||||
-rw-r--r-- | drivers/media/video/sh_mobile_ceu_camera.c | 20 | ||||
-rw-r--r-- | drivers/serial/sh-sci.c | 563 | ||||
-rw-r--r-- | drivers/serial/sh-sci.h | 45 | ||||
-rw-r--r-- | drivers/usb/gadget/m66592-udc.c | 34 | ||||
-rw-r--r-- | drivers/usb/gadget/m66592-udc.h | 27 | ||||
-rw-r--r-- | drivers/usb/host/r8a66597-hcd.c | 34 | ||||
-rw-r--r-- | drivers/usb/host/r8a66597.h | 8 | ||||
-rw-r--r-- | drivers/video/Kconfig | 33 | ||||
-rw-r--r-- | drivers/video/fb_defio.c | 27 | ||||
-rw-r--r-- | drivers/video/sh7760fb.c | 86 | ||||
-rw-r--r-- | drivers/video/sh_mobile_lcdcfb.c | 198 |
14 files changed, 583 insertions, 595 deletions
diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c index 3384a717fec0..6c3d60b939bf 100644 --- a/drivers/i2c/busses/i2c-sh_mobile.c +++ b/drivers/i2c/busses/i2c-sh_mobile.c @@ -160,9 +160,39 @@ struct sh_mobile_i2c_data { static void activate_ch(struct sh_mobile_i2c_data *pd) { + unsigned long i2c_clk; + u_int32_t num; + u_int32_t denom; + u_int32_t tmp; + /* Make sure the clock is enabled */ clk_enable(pd->clk); + /* Get clock rate after clock is enabled */ + i2c_clk = clk_get_rate(pd->clk); + + /* Calculate the value for iccl. From the data sheet: + * iccl = (p clock / transfer rate) * (L / (L + H)) + * where L and H are the SCL low/high ratio (5/4 in this case). + * We also round off the result. + */ + num = i2c_clk * 5; + denom = NORMAL_SPEED * 9; + tmp = num * 10 / denom; + if (tmp % 10 >= 5) + pd->iccl = (u_int8_t)((num/denom) + 1); + else + pd->iccl = (u_int8_t)(num/denom); + + /* Calculate the value for icch. From the data sheet: + icch = (p clock / transfer rate) * (H / (L + H)) */ + num = i2c_clk * 4; + tmp = num * 10 / denom; + if (tmp % 10 >= 5) + pd->icch = (u_int8_t)((num/denom) + 1); + else + pd->icch = (u_int8_t)(num/denom); + /* Enable channel and configure rx ack */ iowrite8(ioread8(ICCR(pd)) | ICCR_ICE, ICCR(pd)); @@ -459,40 +489,6 @@ static struct i2c_algorithm sh_mobile_i2c_algorithm = { .master_xfer = sh_mobile_i2c_xfer, }; -static void sh_mobile_i2c_setup_channel(struct platform_device *dev) -{ - struct sh_mobile_i2c_data *pd = platform_get_drvdata(dev); - unsigned long peripheral_clk = clk_get_rate(pd->clk); - u_int32_t num; - u_int32_t denom; - u_int32_t tmp; - - spin_lock_init(&pd->lock); - init_waitqueue_head(&pd->wait); - - /* Calculate the value for iccl. From the data sheet: - * iccl = (p clock / transfer rate) * (L / (L + H)) - * where L and H are the SCL low/high ratio (5/4 in this case). - * We also round off the result. - */ - num = peripheral_clk * 5; - denom = NORMAL_SPEED * 9; - tmp = num * 10 / denom; - if (tmp % 10 >= 5) - pd->iccl = (u_int8_t)((num/denom) + 1); - else - pd->iccl = (u_int8_t)(num/denom); - - /* Calculate the value for icch. From the data sheet: - icch = (p clock / transfer rate) * (H / (L + H)) */ - num = peripheral_clk * 4; - tmp = num * 10 / denom; - if (tmp % 10 >= 5) - pd->icch = (u_int8_t)((num/denom) + 1); - else - pd->icch = (u_int8_t)(num/denom); -} - static int sh_mobile_i2c_hook_irqs(struct platform_device *dev, int hook) { struct resource *res; @@ -533,6 +529,7 @@ static int sh_mobile_i2c_probe(struct platform_device *dev) struct sh_mobile_i2c_data *pd; struct i2c_adapter *adap; struct resource *res; + char clk_name[8]; int size; int ret; @@ -542,9 +539,10 @@ static int sh_mobile_i2c_probe(struct platform_device *dev) return -ENOMEM; } - pd->clk = clk_get(&dev->dev, "peripheral_clk"); + snprintf(clk_name, sizeof(clk_name), "i2c%d", dev->id); + pd->clk = clk_get(&dev->dev, clk_name); if (IS_ERR(pd->clk)) { - dev_err(&dev->dev, "cannot get peripheral clock\n"); + dev_err(&dev->dev, "cannot get clock \"%s\"\n", clk_name); ret = PTR_ERR(pd->clk); goto err; } @@ -586,7 +584,8 @@ static int sh_mobile_i2c_probe(struct platform_device *dev) strlcpy(adap->name, dev->name, sizeof(adap->name)); - sh_mobile_i2c_setup_channel(dev); + spin_lock_init(&pd->lock); + init_waitqueue_head(&pd->wait); ret = i2c_add_numbered_adapter(adap); if (ret < 0) { diff --git a/drivers/input/keyboard/sh_keysc.c b/drivers/input/keyboard/sh_keysc.c index c600ab7f93e8..5c8a1bcf7ca7 100644 --- a/drivers/input/keyboard/sh_keysc.c +++ b/drivers/input/keyboard/sh_keysc.c @@ -18,6 +18,7 @@ #include <linux/delay.h> #include <linux/platform_device.h> #include <linux/input.h> +#include <linux/clk.h> #include <linux/io.h> #include <asm/sh_keysc.h> @@ -39,6 +40,7 @@ static const struct { struct sh_keysc_priv { void __iomem *iomem_base; + struct clk *clk; unsigned long last_keys; struct input_dev *input; struct sh_keysc_info pdata; @@ -125,6 +127,7 @@ static int __devinit sh_keysc_probe(struct platform_device *pdev) struct sh_keysc_info *pdata; struct resource *res; struct input_dev *input; + char clk_name[8]; int i, k; int irq, error; @@ -165,11 +168,19 @@ static int __devinit sh_keysc_probe(struct platform_device *pdev) goto err1; } + snprintf(clk_name, sizeof(clk_name), "keysc%d", pdev->id); + priv->clk = clk_get(&pdev->dev, clk_name); + if (IS_ERR(priv->clk)) { + dev_err(&pdev->dev, "cannot get clock \"%s\"\n", clk_name); + error = PTR_ERR(priv->clk); + goto err2; + } + priv->input = input_allocate_device(); if (!priv->input) { dev_err(&pdev->dev, "failed to allocate input device\n"); error = -ENOMEM; - goto err2; + goto err3; } input = priv->input; @@ -187,7 +198,7 @@ static int __devinit sh_keysc_probe(struct platform_device *pdev) error = request_irq(irq, sh_keysc_isr, 0, pdev->name, pdev); if (error) { dev_err(&pdev->dev, "failed to request IRQ\n"); - goto err3; + goto err4; } for (i = 0; i < SH_KEYSC_MAXKEYS; i++) { @@ -199,18 +210,22 @@ static int __devinit sh_keysc_probe(struct platform_device *pdev) error = input_register_device(input); if (error) { dev_err(&pdev->dev, "failed to register input device\n"); - goto err4; + goto err5; } + clk_enable(priv->clk); + iowrite16((sh_keysc_mode[pdata->mode].kymd << 8) | pdata->scan_timing, priv->iomem_base + KYCR1_OFFS); iowrite16(0, priv->iomem_base + KYOUTDR_OFFS); iowrite16(KYCR2_IRQ_LEVEL, priv->iomem_base + KYCR2_OFFS); return 0; - err4: + err5: free_irq(irq, pdev); - err3: + err4: input_free_device(input); + err3: + clk_put(priv->clk); err2: iounmap(priv->iomem_base); err1: @@ -230,6 +245,9 @@ static int __devexit sh_keysc_remove(struct platform_device *pdev) free_irq(platform_get_irq(pdev, 0), pdev); iounmap(priv->iomem_base); + clk_disable(priv->clk); + clk_put(priv->clk); + platform_set_drvdata(pdev, NULL); kfree(priv); return 0; diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig index 47102c2c8250..057fd7e160c4 100644 --- a/drivers/media/video/Kconfig +++ b/drivers/media/video/Kconfig @@ -759,7 +759,7 @@ config VIDEO_PXA27x config VIDEO_SH_MOBILE_CEU tristate "SuperH Mobile CEU Interface driver" - depends on VIDEO_DEV && SOC_CAMERA && HAS_DMA + depends on VIDEO_DEV && SOC_CAMERA && HAS_DMA && HAVE_CLK select VIDEOBUF_DMA_CONTIG ---help--- This is a v4l2 driver for the SuperH Mobile CEU Interface diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c index 2407607f2eff..536b1a9b310c 100644 --- a/drivers/media/video/sh_mobile_ceu_camera.c +++ b/drivers/media/video/sh_mobile_ceu_camera.c @@ -31,6 +31,7 @@ #include <linux/platform_device.h> #include <linux/mutex.h> #include <linux/videodev2.h> +#include <linux/clk.h> #include <media/v4l2-common.h> #include <media/v4l2-dev.h> @@ -89,6 +90,7 @@ struct sh_mobile_ceu_dev { unsigned int irq; void __iomem *base; + struct clk *clk; unsigned long video_limit; /* lock used to protect videobuf */ @@ -309,6 +311,8 @@ static int sh_mobile_ceu_add_device(struct soc_camera_device *icd) if (ret) goto err; + clk_enable(pcdev->clk); + ceu_write(pcdev, CAPSR, 1 << 16); /* reset */ while (ceu_read(pcdev, CSTSR) & 1) msleep(1); @@ -342,6 +346,8 @@ static void sh_mobile_ceu_remove_device(struct soc_camera_device *icd) } spin_unlock_irqrestore(&pcdev->lock, flags); + clk_disable(pcdev->clk); + icd->ops->release(icd); dev_info(&icd->dev, @@ -550,6 +556,7 @@ static int sh_mobile_ceu_probe(struct platform_device *pdev) struct sh_mobile_ceu_dev *pcdev; struct resource *res; void __iomem *base; + char clk_name[8]; unsigned int irq; int err = 0; @@ -615,6 +622,14 @@ static int sh_mobile_ceu_probe(struct platform_device *pdev) goto exit_release_mem; } + snprintf(clk_name, sizeof(clk_name), "ceu%d", pdev->id); + pcdev->clk = clk_get(&pdev->dev, clk_name); + if (IS_ERR(pcdev->clk)) { + dev_err(&pdev->dev, "cannot get clock \"%s\"\n", clk_name); + err = PTR_ERR(pcdev->clk); + goto exit_free_irq; + } + pcdev->ici.priv = pcdev; pcdev->ici.dev.parent = &pdev->dev; pcdev->ici.nr = pdev->id; @@ -623,10 +638,12 @@ static int sh_mobile_ceu_probe(struct platform_device *pdev) err = soc_camera_host_register(&pcdev->ici); if (err) - goto exit_free_irq; + goto exit_free_clk; return 0; +exit_free_clk: + clk_put(pcdev->clk); exit_free_irq: free_irq(pcdev->irq, pcdev); exit_release_mem: @@ -645,6 +662,7 @@ static int sh_mobile_ceu_remove(struct platform_device *pdev) struct sh_mobile_ceu_dev *pcdev = platform_get_drvdata(pdev); soc_camera_host_unregister(&pcdev->ici); + clk_put(pcdev->clk); free_irq(pcdev->irq, pcdev); if (platform_get_resource(pdev, IORESOURCE_MEM, 1)) dma_release_declared_memory(&pdev->dev); diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c index 165fc010978c..557b54ab2f25 100644 --- a/drivers/serial/sh-sci.c +++ b/drivers/serial/sh-sci.c @@ -51,7 +51,6 @@ #ifdef CONFIG_SUPERH #include <asm/clock.h> #include <asm/sh_bios.h> -#include <asm/kgdb.h> #endif #include "sh-sci.h" @@ -65,10 +64,6 @@ struct sci_port { /* Port IRQs: ERI, RXI, TXI, BRI (optional) */ unsigned int irqs[SCIx_NR_IRQS]; - /* Port pin configuration */ - void (*init_pins)(struct uart_port *port, - unsigned int cflag); - /* Port enable callback */ void (*enable)(struct uart_port *port); @@ -85,10 +80,6 @@ struct sci_port { #endif }; -#ifdef CONFIG_SH_KGDB -static struct sci_port *kgdb_sci_port; -#endif - #ifdef CONFIG_SERIAL_SH_SCI_CONSOLE static struct sci_port *serial_console_port; #endif @@ -101,21 +92,26 @@ static void sci_stop_tx(struct uart_port *port); static struct sci_port sci_ports[SCI_NPORTS]; static struct uart_driver sci_uart_driver; -#if defined(CONFIG_SERIAL_SH_SCI_CONSOLE) && \ - defined(CONFIG_SH_STANDARD_BIOS) || defined(CONFIG_SH_KGDB) +static inline struct sci_port * +to_sci_port(struct uart_port *uart) +{ + return container_of(uart, struct sci_port, port); +} + +#if defined(CONFIG_CONSOLE_POLL) || defined(CONFIG_SERIAL_SH_SCI_CONSOLE) + +#ifdef CONFIG_CONSOLE_POLL static inline void handle_error(struct uart_port *port) { /* Clear error flags */ sci_out(port, SCxSR, SCxSR_ERROR_CLEAR(port)); } -static int get_char(struct uart_port *port) +static int sci_poll_get_char(struct uart_port *port) { - unsigned long flags; unsigned short status; int c; - spin_lock_irqsave(&port->lock, flags); do { status = sci_in(port, SCxSR); if (status & SCxSR_ERRORS(port)) { @@ -123,23 +119,21 @@ static int get_char(struct uart_port *port) continue; } } while (!(status & SCxSR_RDxF(port))); + c = sci_in(port, SCxRDR); - sci_in(port, SCxSR); /* Dummy read */ + + /* Dummy read */ + sci_in(port, SCxSR); sci_out(port, SCxSR, SCxSR_RDxF_CLEAR(port)); - spin_unlock_irqrestore(&port->lock, flags); return c; } -#endif /* CONFIG_SH_STANDARD_BIOS || CONFIG_SH_KGDB */ +#endif -#if defined(CONFIG_SERIAL_SH_SCI_CONSOLE) || defined(CONFIG_SH_KGDB) -static void put_char(struct uart_port *port, char c) +static void sci_poll_put_char(struct uart_port *port, unsigned char c) { - unsigned long flags; unsigned short status; - spin_lock_irqsave(&port->lock, flags); - do { status = sci_in(port, SCxSR); } while (!(status & SCxSR_TDxE(port))); @@ -147,96 +141,22 @@ static void put_char(struct uart_port *port, char c) sci_in(port, SCxSR); /* Dummy read */ sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port)); sci_out(port, SCxTDR, c); - - spin_unlock_irqrestore(&port->lock, flags); } -#endif - -#ifdef CONFIG_SERIAL_SH_SCI_CONSOLE -static void put_string(struct sci_port *sci_port, const char *buffer, int count) -{ - struct uart_port *port = &sci_port->port; - const unsigned char *p = buffer; - int i; - -#if defined(CONFIG_SH_STANDARD_BIOS) || defined(CONFIG_SH_KGDB) - int checksum; - int usegdb=0; - -#ifdef CONFIG_SH_STANDARD_BIOS - /* This call only does a trap the first time it is - * called, and so is safe to do here unconditionally - */ - usegdb |= sh_bios_in_gdb_mode(); -#endif -#ifdef CONFIG_SH_KGDB - usegdb |= (kgdb_in_gdb_mode && (sci_port == kgdb_sci_port)); -#endif - - if (usegdb) { - /* $<packet info>#<checksum>. */ - do { - unsigned char c; - put_char(port, '$'); - put_char(port, 'O'); /* 'O'utput to console */ - checksum = 'O'; - - for (i=0; i<count; i++) { /* Don't use run length encoding */ - int h, l; - - c = *p++; - h = hex_asc_hi(c); - l = hex_asc_lo(c); - put_char(port, h); - put_char(port, l); - checksum += h + l; - } - put_char(port, '#'); - put_char(port, hex_asc_hi(checksum)); - put_char(port, hex_asc_lo(checksum)); - } while (get_char(port) != '+'); - } else -#endif /* CONFIG_SH_STANDARD_BIOS || CONFIG_SH_KGDB */ - for (i=0; i<count; i++) { - if (*p == 10) - put_char(port, '\r'); - put_char(port, *p++); - } -} -#endif /* CONFIG_SERIAL_SH_SCI_CONSOLE */ - -#ifdef CONFIG_SH_KGDB -static int kgdb_sci_getchar(void) -{ - int c; - - /* Keep trying to read a character, this could be neater */ - while ((c = get_char(&kgdb_sci_port->port)) < 0) - cpu_relax(); - - return c; -} - -static inline void kgdb_sci_putchar(int c) -{ - put_char(&kgdb_sci_port->port, c); -} -#endif /* CONFIG_SH_KGDB */ +#endif /* CONFIG_CONSOLE_POLL || CONFIG_SERIAL_SH_SCI_CONSOLE */ #if defined(__H8300S__) enum { sci_disable, sci_enable }; -static void h8300_sci_config(struct uart_port* port, unsigned int ctrl) +static void h8300_sci_config(struct uart_port *port, unsigned int ctrl) { - volatile unsigned char *mstpcrl=(volatile unsigned char *)MSTPCRL; + volatile unsigned char *mstpcrl = (volatile unsigned char *)MSTPCRL; int ch = (port->mapbase - SMR0) >> 3; unsigned char mask = 1 << (ch+1); - if (ctrl == sci_disable) { + if (ctrl == sci_disable) *mstpcrl |= mask; - } else { + else *mstpcrl &= ~mask; - } } static inline void h8300_sci_enable(struct uart_port *port) @@ -251,7 +171,7 @@ static inline void h8300_sci_disable(struct uart_port *port) #endif #if defined(__H8300H__) || defined(__H8300S__) -static void sci_init_pins_sci(struct uart_port* port, unsigned int cflag) +static void sci_init_pins(struct uart_port *port, unsigned int cflag) { int ch = (port->mapbase - SMR0) >> 3; @@ -266,141 +186,99 @@ static void sci_init_pins_sci(struct uart_port* port, unsigned int cflag) /* tx mark output*/ H8300_SCI_DR(ch) |= h8300_sci_pins[ch].tx; } -#else -#define sci_init_pins_sci NULL -#endif - -#if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) -static void sci_init_pins_irda(struct uart_port *port, unsigned int cflag) +#elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712) +static inline void sci_init_pins(struct uart_port *port, unsigned int cflag) { - unsigned int fcr_val = 0; - - if (cflag & CRTSCTS) - fcr_val |= SCFCR_MCE; - - sci_out(port, SCFCR, fcr_val); -} -#else -#define sci_init_pins_irda NULL -#endif - -#if defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712) -static void sci_init_pins_scif(struct uart_port* port, unsigned int cflag) -{ - unsigned int fcr_val = 0; - - set_sh771x_scif_pfc(port); - if (cflag & CRTSCTS) { - fcr_val |= SCFCR_MCE; - } - sci_out(port, SCFCR, fcr_val); + if (port->mapbase == 0xA4400000) { + __raw_writew(__raw_readw(PACR) & 0xffc0, PACR); + __raw_writew(__raw_readw(PBCR) & 0x0fff, PBCR); + } else if (port->mapbase == 0xA4410000) + __raw_writew(__raw_readw(PBCR) & 0xf003, PBCR); } #elif defined(CONFIG_CPU_SUBTYPE_SH7720) || defined(CONFIG_CPU_SUBTYPE_SH7721) -static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag) +static inline void sci_init_pins(struct uart_port *port, unsigned int cflag) { - unsigned int fcr_val = 0; unsigned short data; if (cflag & CRTSCTS) { /* enable RTS/CTS */ if (port->mapbase == 0xa4430000) { /* SCIF0 */ /* Clear PTCR bit 9-2; enable all scif pins but sck */ - data = ctrl_inw(PORT_PTCR); - ctrl_outw((data & 0xfc03), PORT_PTCR); + data = __raw_readw(PORT_PTCR); + __raw_writew((data & 0xfc03), PORT_PTCR); } else if (port->mapbase == 0xa4438000) { /* SCIF1 */ /* Clear PVCR bit 9-2 */ - data = ctrl_inw(PORT_PVCR); - ctrl_outw((data & 0xfc03), PORT_PVCR); + data = __raw_readw(PORT_PVCR); + __raw_writew((data & 0xfc03), PORT_PVCR); } - fcr_val |= SCFCR_MCE; } else { if (port->mapbase == 0xa4430000) { /* SCIF0 */ /* Clear PTCR bit 5-2; enable only tx and rx */ - data = ctrl_inw(PORT_PTCR); - ctrl_outw((data & 0xffc3), PORT_PTCR); + data = __raw_readw(PORT_PTCR); + __raw_writew((data & 0xffc3), PORT_PTCR); } else if (port->mapbase == 0xa4438000) { /* SCIF1 */ /* Clear PVCR bit 5-2 */ - data = ctrl_inw(PORT_PVCR); - ctrl_outw((data & 0xffc3), PORT_PVCR); + data = __raw_readw(PORT_PVCR); + __raw_writew((data & 0xffc3), PORT_PVCR); } } - sci_out(port, SCFCR, fcr_val); } #elif defined(CONFIG_CPU_SH3) /* For SH7705, SH7706, SH7707, SH7709, SH7709A, SH7729 */ -static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag) +static inline void sci_init_pins(struct uart_port *port, unsigned int cflag) { - unsigned int fcr_val = 0; unsigned short data; /* We need to set SCPCR to enable RTS/CTS */ - data = ctrl_inw(SCPCR); + data = __raw_readw(SCPCR); /* Clear out SCP7MD1,0, SCP6MD1,0, SCP4MD1,0*/ - ctrl_outw(data & 0x0fcf, SCPCR); + __raw_writew(data & 0x0fcf, SCPCR); - if (cflag & CRTSCTS) - fcr_val |= SCFCR_MCE; - else { + if (!(cflag & CRTSCTS)) { /* We need to set SCPCR to enable RTS/CTS */ - data = ctrl_inw(SCPCR); + data = __raw_readw(SCPCR); /* Clear out SCP7MD1,0, SCP4MD1,0, Set SCP6MD1,0 = {01} (output) */ - ctrl_outw((data & 0x0fcf) | 0x1000, SCPCR); + __raw_writew((data & 0x0fcf) | 0x1000, SCPCR); data = ctrl_inb(SCPDR); /* Set /RTS2 (bit6) = 0 */ ctrl_outb(data & 0xbf, SCPDR); } - - sci_out(port, SCFCR, fcr_val); } #elif defined(CONFIG_CPU_SUBTYPE_SH7722) -static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag) +static inline void sci_init_pins(struct uart_port *port, unsigned int cflag) { - unsigned int fcr_val = 0; unsigned short data; if (port->mapbase == 0xffe00000) { - data = ctrl_inw(PSCR); + data = __raw_readw(PSCR); data &= ~0x03cf; - if (cflag & CRTSCTS) - fcr_val |= SCFCR_MCE; - else + if (!(cflag & CRTSCTS)) data |= 0x0340; - ctrl_outw(data, PSCR); + __raw_writew(data, PSCR); } - /* SCIF1 and SCIF2 should be setup by board code */ - - sci_out(port, SCFCR, fcr_val); -} -#elif defined(CONFIG_CPU_SUBTYPE_SH7723) -static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag) -{ - /* Nothing to do here.. */ - sci_out(port, SCFCR, 0); } -#else -/* For SH7750 */ -static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag) -{ - unsigned int fcr_val = 0; - - if (cflag & CRTSCTS) { - fcr_val |= SCFCR_MCE; - } else { -#if defined(CONFIG_CPU_SUBTYPE_SH7343) || defined(CONFIG_CPU_SUBTYPE_SH7366) - /* Nothing */ #elif defined(CONFIG_CPU_SUBTYPE_SH7763) || \ defined(CONFIG_CPU_SUBTYPE_SH7780) || \ defined(CONFIG_CPU_SUBTYPE_SH7785) || \ defined(CONFIG_CPU_SUBTYPE_SHX3) - ctrl_outw(0x0080, SCSPTR0); /* Set RTS = 1 */ +static inline void sci_init_pins(struct uart_port *port, unsigned int cflag) +{ + if (!(cflag & CRTSCTS)) + __raw_writew(0x0080, SCSPTR0); /* Set RTS = 1 */ +} +#elif defined(CONFIG_CPU_SH4) && !defined(CONFIG_CPU_SH4A) +static inline void sci_init_pins(struct uart_port *port, unsigned int cflag) +{ + if (!(cflag & CRTSCTS)) + __raw_writew(0x0080, SCSPTR2); /* Set RTS = 1 */ +} #else - ctrl_outw(0x0080, SCSPTR2); /* Set RTS = 1 */ -#endif - } - sci_out(port, SCFCR, fcr_val); +static inline void sci_init_pins(struct uart_port *port, unsigned int cflag) +{ + /* Nothing to do */ } #endif @@ -419,18 +297,26 @@ static inline int scif_rxroom(struct uart_port *port) #elif defined(CONFIG_CPU_SUBTYPE_SH7763) static inline int scif_txroom(struct uart_port *port) { - if((port->mapbase == 0xffe00000) || (port->mapbase == 0xffe08000)) /* SCIF0/1*/ + if ((port->mapbase == 0xffe00000) || + (port->mapbase == 0xffe08000)) { + /* SCIF0/1*/ return SCIF_TXROOM_MAX - (sci_in(port, SCTFDR) & 0xff); - else /* SCIF2 */ + } else { + /* SCIF2 */ return SCIF2_TXROOM_MAX - (sci_in(port, SCFDR) >> 8); + } } static inline int scif_rxroom(struct uart_port *port) { - if((port->mapbase == 0xffe00000) || (port->mapbase == 0xffe08000)) /* SCIF0/1*/ + if ((port->mapbase == 0xffe00000) || + (port->mapbase == 0xffe08000)) { + /* SCIF0/1*/ return sci_in(port, SCRFDR) & 0xff; - else /* SCIF2 */ + } else { + /* SCIF2 */ return sci_in(port, SCFDR) & SCIF2_RFDC_MASK; + } } #else static inline int scif_txroom(struct uart_port *port) @@ -446,12 +332,12 @@ static inline int scif_rxroom(struct uart_port *port) static inline int sci_txroom(struct uart_port *port) { - return ((sci_in(port, SCxSR) & SCI_TDRE) != 0); + return (sci_in(port, SCxSR) & SCI_TDRE) != 0; } static inline int sci_rxroom(struct uart_port *port) { - return ((sci_in(port, SCxSR) & SCxSR_RDxF(port)) != 0); + return (sci_in(port, SCxSR) & SCxSR_RDxF(port)) != 0; } /* ********************************************************************** * @@ -469,11 +355,10 @@ static void sci_transmit_chars(struct uart_port *port) status = sci_in(port, SCxSR); if (!(status & SCxSR_TDxE(port))) { ctrl = sci_in(port, SCSCR); - if (uart_circ_empty(xmit)) { + if (uart_circ_empty(xmit)) ctrl &= ~SCI_CTRL_FLAGS_TIE; - } else { + else ctrl |= SCI_CTRL_FLAGS_TIE; - } sci_out(port, SCSCR, ctrl); return; } @@ -521,11 +406,11 @@ static void sci_transmit_chars(struct uart_port *port) } /* On SH3, SCIF may read end-of-break as a space->mark char */ -#define STEPFN(c) ({int __c=(c); (((__c-1)|(__c)) == -1); }) +#define STEPFN(c) ({int __c = (c); (((__c-1)|(__c)) == -1); }) static inline void sci_receive_chars(struct uart_port *port) { - struct sci_port *sci_port = (struct sci_port *)port; + struct sci_port *sci_port = to_sci_port(port); struct tty_struct *tty = port->info->port.tty; int i, count, copied = 0; unsigned short status; @@ -550,13 +435,13 @@ static inline void sci_receive_chars(struct uart_port *port) if (port->type == PORT_SCI) { char c = sci_in(port, SCxRDR); - if (uart_handle_sysrq_char(port, c) || sci_port->break_flag) + if (uart_handle_sysrq_char(port, c) || + sci_port->break_flag) count = 0; - else { + else tty_insert_flip_char(tty, c, TTY_NORMAL); - } } else { - for (i=0; i<count; i++) { + for (i = 0; i < count; i++) { char c = sci_in(port, SCxRDR); status = sci_in(port, SCxSR); #if defined(CONFIG_CPU_SH3) @@ -569,7 +454,7 @@ static inline void sci_receive_chars(struct uart_port *port) } /* Nonzero => end-of-break */ - pr_debug("scif: debounce<%02x>\n", c); + dev_dbg(port->dev, "debounce<%02x>\n", c); sci_port->break_flag = 0; if (STEPFN(c)) { @@ -586,12 +471,13 @@ static inline void sci_receive_chars(struct uart_port *port) /* Store data and status */ if (status&SCxSR_FER(port)) { flag = TTY_FRAME; - pr_debug("sci: frame error\n"); + dev_notice(port->dev, "frame error\n"); } else if (status&SCxSR_PER(port)) { flag = TTY_PARITY; - pr_debug("sci: parity error\n"); + dev_notice(port->dev, "parity error\n"); } else flag = TTY_NORMAL; + tty_insert_flip_char(tty, c, flag); } } @@ -651,13 +537,14 @@ static inline int sci_handle_errors(struct uart_port *port) /* overrun error */ if (tty_insert_flip_char(tty, 0, TTY_OVERRUN)) copied++; - pr_debug("sci: overrun error\n"); + + dev_notice(port->dev, "overrun error"); } if (status & SCxSR_FER(port)) { if (sci_rxd_in(port) == 0) { /* Notify of BREAK */ - struct sci_port *sci_port = (struct sci_port *)port; + struct sci_port *sci_port = to_sci_port(port); if (!sci_port->break_flag) { sci_port->break_flag = 1; @@ -666,15 +553,19 @@ static inline int sci_handle_errors(struct uart_port *port) /* Do sysrq handling. */ if (uart_handle_break(port)) return 0; - pr_debug("sci: BREAK detected\n"); + + dev_dbg(port->dev, "BREAK detected\n"); + if (tty_insert_flip_char(tty, 0, TTY_BREAK)) - copied++; - } + copied++; + } + } else { /* frame error */ if (tty_insert_flip_char(tty, 0, TTY_FRAME)) copied++; - pr_debug("sci: frame error\n"); + + dev_notice(port->dev, "frame error\n"); } } @@ -682,7 +573,8 @@ static inline int sci_handle_errors(struct uart_port *port) /* parity error */ if (tty_insert_flip_char(tty, 0, TTY_PARITY)) copied++; - pr_debug("sci: parity error\n"); + + dev_notice(port->dev, "parity error"); } if (copied) @@ -691,6 +583,27 @@ static inline int sci_handle_errors(struct uart_port *port) return copied; } +static inline int sci_handle_fifo_overrun(struct uart_port *port) +{ + struct tty_struct *tty = port->info->port.tty; + int copied = 0; + + if (port->type != PORT_SCIF) + return 0; + + if ((sci_in(port, SCLSR) & SCIF_ORER) != 0) { + sci_out(port, SCLSR, 0); + + tty_insert_flip_char(tty, 0, TTY_OVERRUN); + tty_flip_buffer_push(tty); + + dev_notice(port->dev, "overrun error\n"); + copied++; + } + + return copied; +} + static inline int sci_handle_breaks(struct uart_port *port) { int copied = 0; @@ -709,23 +622,15 @@ static inline int sci_handle_breaks(struct uart_port *port) /* Notify of BREAK */ if (tty_insert_flip_char(tty, 0, TTY_BREAK)) copied++; - pr_debug("sci: BREAK detected\n"); - } -#if defined(SCIF_ORER) - /* XXX: Handle SCIF overrun error */ - if (port->type != PORT_SCI && (sci_in(port, SCLSR) & SCIF_ORER) != 0) { - sci_out(port, SCLSR, 0); - if (tty_insert_flip_char(tty, 0, TTY_OVERRUN)) { - copied++; - pr_debug("sci: overrun error\n"); - } + dev_dbg(port->dev, "BREAK detected\n"); } -#endif if (copied) tty_flip_buffer_push(tty); + copied += sci_handle_fifo_overrun(port); + return copied; } @@ -763,16 +668,7 @@ static irqreturn_t sci_er_interrupt(int irq, void *ptr) sci_out(port, SCxSR, SCxSR_RDxF_CLEAR(port)); } } else { -#if defined(SCIF_ORER) - if((sci_in(port, SCLSR) & SCIF_ORER) != 0) { - struct tty_struct *tty = port->info->port.tty; - - sci_out(port, SCLSR, 0); - tty_insert_flip_char(tty, 0, TTY_OVERRUN); - tty_flip_buffer_push(tty); - pr_debug("scif: overrun error\n"); - } -#endif + sci_handle_fifo_overrun(port); sci_rx_interrupt(irq, ptr); } @@ -801,8 +697,8 @@ static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr) struct uart_port *port = ptr; irqreturn_t ret = IRQ_NONE; - ssr_status = sci_in(port,SCxSR); - scr_status = sci_in(port,SCSCR); + ssr_status = sci_in(port, SCxSR); + scr_status = sci_in(port, SCSCR); /* Tx Interrupt */ if ((ssr_status & 0x0020) && (scr_status & SCI_CTRL_FLAGS_TIE)) @@ -820,7 +716,7 @@ static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr) return ret; } -#if defined(CONFIG_CPU_FREQ) && defined(CONFIG_HAVE_CLK) +#ifdef CONFIG_HAVE_CLK /* * Here we define a transistion notifier so that we can update all of our * ports' baud rate when the peripheral clock changes. @@ -828,41 +724,20 @@ static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr) static int sci_notifier(struct notifier_block *self, unsigned long phase, void *p) { - struct cpufreq_freqs *freqs = p; int i; if ((phase == CPUFREQ_POSTCHANGE) || - (phase == CPUFREQ_RESUMECHANGE)){ + (phase == CPUFREQ_RESUMECHANGE)) for (i = 0; i < SCI_NPORTS; i++) { - struct uart_port *port = &sci_ports[i].port; - struct clk *clk; - - /* - * Update the uartclk per-port if frequency has - * changed, since it will no longer necessarily be - * consistent with the old frequency. - * - * Really we want to be able to do something like - * uart_change_speed() or something along those lines - * here to implicitly reset the per-port baud rate.. - * - * Clean this up later.. - */ - clk = clk_get(NULL, "module_clk"); - port->uartclk = clk_get_rate(clk); - clk_put(clk); + struct sci_port *s = &sci_ports[i]; + s->port.uartclk = clk_get_rate(s->clk); } - printk(KERN_INFO "%s: got a postchange notification " - "for cpu %d (old %d, new %d)\n", - __func__, freqs->cpu, freqs->old, freqs->new); - } - return NOTIFY_OK; |