mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-18 15:14:05 +02:00
f7d2258cfb
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13224 3c298f89-4303-0410-b956-a3cf2f4a3e73
85 lines
2.7 KiB
Diff
85 lines
2.7 KiB
Diff
After applying the following changes I could verify functionality by
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mounting a filesystem on the cfdisk and reading/writing files in it.
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The set_irq_type() function must be wrong, as there is no set_type()
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function defined for the rb532 IRQ chip. But as the used IRQ actually is
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being triggered by a GPIO, setting it's interrupt level should be the
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right alternative. Also to clear a GPIO triggered IRQ, the source has to
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be cleared. This is being done at the end of rb532_pata_irq_handler.
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Signed-off-by: Phil Sutter <n0-1@freewrt.org>
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Acked-by: Florian Fainelli <florian@openwrt.org>
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---
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drivers/ata/pata_rb532_cf.c | 15 ++++++++++-----
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1 files changed, 10 insertions(+), 5 deletions(-)
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diff --git a/drivers/ata/pata_rb532_cf.c b/drivers/ata/pata_rb532_cf.c
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index f8b3ffc..7b11f40 100644
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--- a/drivers/ata/pata_rb532_cf.c
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+++ b/drivers/ata/pata_rb532_cf.c
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@@ -31,6 +31,7 @@
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#include <scsi/scsi_host.h>
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#include <asm/gpio.h>
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+#include <asm/mach-rc32434/gpio.h>
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#define DRV_NAME "pata-rb532-cf"
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#define DRV_VERSION "0.1.0"
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@@ -39,7 +40,8 @@
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#define RB500_CF_MAXPORTS 1
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#define RB500_CF_IO_DELAY 400
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-#define RB500_CF_REG_CMD 0x0800
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+#define RB500_CF_REG_BASE 0x0800
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+#define RB500_CF_REG_ERR 0x080D
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#define RB500_CF_REG_CTRL 0x080E
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#define RB500_CF_REG_DATA 0x0C00
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@@ -62,7 +64,7 @@ static inline void rb532_pata_finish_io(struct ata_port *ap)
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ata_sff_dma_pause(ap);
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ndelay(RB500_CF_IO_DELAY);
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- set_irq_type(info->irq, IRQ_TYPE_LEVEL_HIGH);
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+ rb532_gpio_set_ilevel(1, info->gpio_line);
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}
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static void rb532_pata_exec_command(struct ata_port *ap,
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@@ -109,13 +111,15 @@ static irqreturn_t rb532_pata_irq_handler(int irq, void *dev_instance)
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struct rb532_cf_info *info = ah->private_data;
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if (gpio_get_value(info->gpio_line)) {
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- set_irq_type(info->irq, IRQ_TYPE_LEVEL_LOW);
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+ rb532_gpio_set_ilevel(0, info->gpio_line);
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if (!info->frozen)
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ata_sff_interrupt(info->irq, dev_instance);
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} else {
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- set_irq_type(info->irq, IRQ_TYPE_LEVEL_HIGH);
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+ rb532_gpio_set_ilevel(1, info->gpio_line);
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}
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+ rb532_gpio_set_istat(0, info->gpio_line);
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+
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return IRQ_HANDLED;
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}
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@@ -146,13 +150,14 @@ static void rb532_pata_setup_ports(struct ata_host *ah)
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ap->pio_mask = 0x1f; /* PIO4 */
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ap->flags = ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO;
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- ap->ioaddr.cmd_addr = info->iobase + RB500_CF_REG_CMD;
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+ ap->ioaddr.cmd_addr = info->iobase + RB500_CF_REG_BASE;
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ap->ioaddr.ctl_addr = info->iobase + RB500_CF_REG_CTRL;
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ap->ioaddr.altstatus_addr = info->iobase + RB500_CF_REG_CTRL;
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ata_sff_std_ports(&ap->ioaddr);
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ap->ioaddr.data_addr = info->iobase + RB500_CF_REG_DATA;
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+ ap->ioaddr.error_addr = info->iobase + RB500_CF_REG_ERR;
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}
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static __devinit int rb532_pata_driver_probe(struct platform_device *pdev)
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--
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1.5.6.4
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