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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2016-01-29 20:46:52 +0100
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2016-01-29 20:46:52 +0100
commitc29915fccda96258dbccf49b052ee4ddd7d51169 (patch)
tree52fb418fe463804a9fc3cba1682300562ec2ef55 /linux/src/drivers/block/ide.c
parent0191a6b08f1d0e023994a64079be2d3b764d6232 (diff)
Disable probing legacy IDE when AHCI driver works
* linux/src/drivers/block/ide.c (default_io_base): Do not qualify const. (ide_disable_base): New function. * linux/dev/include/linux/blk.h (ide_disable_base): New declaration. * linux/dev/drivers/block/ahci.c (ahci_probe_dev): Call ide_disable_base with each I/O BAR of the AHCI PCI card.
Diffstat (limited to 'linux/src/drivers/block/ide.c')
-rw-r--r--linux/src/drivers/block/ide.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/linux/src/drivers/block/ide.c b/linux/src/drivers/block/ide.c
index 41a2601..dc20fcb 100644
--- a/linux/src/drivers/block/ide.c
+++ b/linux/src/drivers/block/ide.c
@@ -325,7 +325,7 @@
#endif /* CONFIG_BLK_DEV_PROMISE */
static const byte ide_hwif_to_major[MAX_HWIFS] = {IDE0_MAJOR, IDE1_MAJOR, IDE2_MAJOR, IDE3_MAJOR};
-static const unsigned short default_io_base[MAX_HWIFS] = {0x1f0, 0x170, 0x1e8, 0x168};
+static unsigned short default_io_base[MAX_HWIFS] = {0x1f0, 0x170, 0x1e8, 0x168};
static const byte default_irqs[MAX_HWIFS] = {14, 15, 11, 10};
static int idebus_parameter; /* holds the "idebus=" parameter */
static int system_bus_speed; /* holds what we think is VESA/PCI bus speed */
@@ -367,6 +367,15 @@ static void set_recovery_timer (ide_hwif_t *hwif)
#endif /* DISK_RECOVERY_TIME */
+/* Called by other drivers to disable the legacy IDE driver on a given IDE base. */
+void ide_disable_base(unsigned base)
+{
+ unsigned i;
+ for (i = 0; i < MAX_HWIFS; i++)
+ if (default_io_base[i] == base)
+ default_io_base[i] = 0;
+}
+
/*
* Do not even *think* about calling this!