diff options
| -rw-r--r-- | drivers/mfd/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/mfd/tc6393xb.c | 63 | ||||
| -rw-r--r-- | include/linux/mfd/tc6393xb.h | 2 | ||||
| -rw-r--r-- | include/linux/mfd/tmio.h | 17 |
4 files changed, 83 insertions, 0 deletions
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 8ebc0be..7dff105 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -45,6 +45,7 @@ config HTC_PASIC3 config MFD_TC6393XB bool "Support Toshiba TC6393XB" depends on HAVE_GPIO_LIB + select MFD_CORE help Support for Toshiba Mobile IO Controller TC6393XB diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c index 4d7192e..2d87501 100644 --- a/drivers/mfd/tc6393xb.c +++ b/drivers/mfd/tc6393xb.c @@ -21,6 +21,8 @@ #include <linux/platform_device.h> #include <linux/fb.h> #include <linux/clk.h> +#include <linux/mfd/core.h> +#include <linux/mfd/tmio.h> #include <linux/mfd/tc6393xb.h> #include <linux/gpio.h> @@ -108,6 +110,59 @@ struct tc6393xb { int irq_base; }; +enum { + TC6393XB_CELL_NAND, +}; + +/*--------------------------------------------------------------------------*/ + +static int tc6393xb_nand_enable(struct platform_device *nand) +{ + struct platform_device *dev = to_platform_device(nand->dev.parent); + struct tc6393xb *tc6393xb = platform_get_drvdata(dev); + unsigned long flags; + + spin_lock_irqsave(&tc6393xb->lock, flags); + + /* SMD buffer on */ + dev_dbg(&dev->dev, "SMD buffer on\n"); + iowrite8(0xff, tc6393xb->scr + SCR_GPI_BCR(1)); + + spin_unlock_irqrestore(&tc6393xb->lock, flags); + + return 0; +} + +static struct resource __devinitdata tc6393xb_nand_resources[] = { + { + .name = TMIO_NAND_CONFIG, + .start = 0x0100, + .end = 0x01ff, + .flags = IORESOURCE_MEM, + }, + { + .name = TMIO_NAND_CONTROL, + .start = 0x1000, + .end = 0x1007, + .flags = IORESOURCE_MEM, + }, + { + .name = TMIO_NAND_IRQ, + .start = IRQ_TC6393_NAND, + .end = IRQ_TC6393_NAND, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct mfd_cell __devinitdata tc6393xb_cells[] = { + [TC6393XB_CELL_NAND] = { + .name = "tmio-nand", + .enable = tc6393xb_nand_enable, + .num_resources = ARRAY_SIZE(tc6393xb_nand_resources), + .resources = tc6393xb_nand_resources, + }, +}; + /*--------------------------------------------------------------------------*/ static int tc6393xb_gpio_get(struct gpio_chip *chip, @@ -410,6 +465,12 @@ static int __devinit tc6393xb_probe(struct platform_device *dev) if (tc6393xb->irq) tc6393xb_attach_irq(dev); + tc6393xb_cells[TC6393XB_CELL_NAND].driver_data = tcpd->nand_data; + + retval = mfd_add_devices(dev, + tc6393xb_cells, ARRAY_SIZE(tc6393xb_cells), + iomem, tcpd->irq_base); + return 0; if (tc6393xb->irq) @@ -440,6 +501,8 @@ static int __devexit tc6393xb_remove(struct platform_device *dev) struct tc6393xb *tc6393xb = platform_get_drvdata(dev); int ret; + mfd_remove_devices(dev); + if (tc6393xb->irq) tc6393xb_detach_irq(dev); diff --git a/include/linux/mfd/tc6393xb.h b/include/linux/mfd/tc6393xb.h index 0e3dd4c..7cc824a 100644 --- a/include/linux/mfd/tc6393xb.h +++ b/include/linux/mfd/tc6393xb.h @@ -31,6 +31,8 @@ struct tc6393xb_platform_data { int irq_base; /* a base for cascaded irq */ int gpio_base; + + struct tmio_nand_data *nand_data; }; /* diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h new file mode 100644 index 0000000..9438d8c --- /dev/null +++ b/include/linux/mfd/tmio.h @@ -0,0 +1,17 @@ +#ifndef MFD_TMIO_H +#define MFD_TMIO_H + +/* + * data for the NAND controller + */ +struct tmio_nand_data { + struct nand_bbt_descr *badblock_pattern; + struct mtd_partition *partition; + unsigned int num_partitions; +}; + +#define TMIO_NAND_CONFIG "tmio-nand-config" +#define TMIO_NAND_CONTROL "tmio-nand-control" +#define TMIO_NAND_IRQ "tmio-nand" + +#endif |