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author | Dmitry Baryshkov <dbaryshkov@gmail.com> | 2008-06-27 10:37:57 +0100 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-07-07 13:22:08 +0100 |
commit | f024ff10b1ab13da4d626366019fd05c49721af7 (patch) | |
tree | 9f2c1431856716d7d22d53315945301ebe2b33e8 /drivers/mfd/tc6393xb.c | |
parent | aa613de676986f136fa6f48a4d709b5d264f4f38 (diff) | |
download | kernel_samsung_tuna-f024ff10b1ab13da4d626366019fd05c49721af7.zip kernel_samsung_tuna-f024ff10b1ab13da4d626366019fd05c49721af7.tar.gz kernel_samsung_tuna-f024ff10b1ab13da4d626366019fd05c49721af7.tar.bz2 |
[ARM] 5128/1: tc6393xb: tmio-nand support
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/mfd/tc6393xb.c')
-rw-r--r-- | drivers/mfd/tc6393xb.c | 63 |
1 files changed, 63 insertions, 0 deletions
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); |