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Date: Sun, 25 Feb 2007 17:51:15 +0100 (MET)
From: Mikael Pettersson <mikpe@...uu.se>
To: Jeff Garzik <jgarzik@...ox.com>
Cc: linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2.6.21-rc1] sata_promise: simplify port setup
Each place in pdc_ata_init_one() that initialises a SATA
port first calls pdc_ata_setup_port(), and then manually
assigns the port's ->scr_addr. Simplify the code by extending
pdc_ata_setup_port() to also handle scr_addr initialisation;
for PATA ports we pass NULL as scr_addr.
The initialisation of the PATA-only 20619 redundantly set
up scr_addr for the ports. Remove this.
Tested on 20619, 20575, and 20775 chips.
Signed-off-by: Mikael Pettersson <mikpe@...uu.se>
---
drivers/ata/sata_promise.c | 29 ++++++++++-------------------
1 files changed, 10 insertions(+), 19 deletions(-)
diff -rupN linux-2.6.21-rc1/drivers/ata/sata_promise.c linux-2.6.21-rc1.sata_promise-setup_port-cleanup/drivers/ata/sata_promise.c
--- linux-2.6.21-rc1/drivers/ata/sata_promise.c 2007-02-25 14:24:09.000000000 +0100
+++ linux-2.6.21-rc1.sata_promise-setup_port-cleanup/drivers/ata/sata_promise.c 2007-02-25 14:24:30.000000000 +0100
@@ -777,7 +777,8 @@ static int pdc_old_check_atapi_dma(struc
return pdc_check_atapi_dma(qc);
}
-static void pdc_ata_setup_port(struct ata_ioports *port, void __iomem *base)
+static void pdc_ata_setup_port(struct ata_ioports *port, void __iomem *base,
+ void __iomem *scr_addr)
{
port->cmd_addr = base;
port->data_addr = base;
@@ -792,6 +793,7 @@ static void pdc_ata_setup_port(struct at
port->status_addr = base + 0x1c;
port->altstatus_addr =
port->ctl_addr = base + 0x38;
+ port->scr_addr = scr_addr;
}
@@ -904,11 +906,8 @@ static int pdc_ata_init_one (struct pci_
base = probe_ent->iomap[PDC_MMIO_BAR];
- pdc_ata_setup_port(&probe_ent->port[0], base + 0x200);
- pdc_ata_setup_port(&probe_ent->port[1], base + 0x280);
-
- probe_ent->port[0].scr_addr = base + 0x400;
- probe_ent->port[1].scr_addr = base + 0x500;
+ pdc_ata_setup_port(&probe_ent->port[0], base + 0x200, base + 0x400);
+ pdc_ata_setup_port(&probe_ent->port[1], base + 0x280, base + 0x500);
/* notice 4-port boards */
switch (board_idx) {
@@ -917,12 +916,8 @@ static int pdc_ata_init_one (struct pci_
/* Fall through */
case board_20319:
probe_ent->n_ports = 4;
-
- pdc_ata_setup_port(&probe_ent->port[2], base + 0x300);
- pdc_ata_setup_port(&probe_ent->port[3], base + 0x380);
-
- probe_ent->port[2].scr_addr = base + 0x600;
- probe_ent->port[3].scr_addr = base + 0x700;
+ pdc_ata_setup_port(&probe_ent->port[2], base + 0x300, base + 0x600);
+ pdc_ata_setup_port(&probe_ent->port[3], base + 0x380, base + 0x700);
break;
case board_2057x:
hp->flags |= PDC_FLAG_GEN_II;
@@ -932,7 +927,7 @@ static int pdc_ata_init_one (struct pci_
tmp = readb(base + PDC_FLASH_CTL+1);
if (!(tmp & 0x80)) {
probe_ent->n_ports = 3;
- pdc_ata_setup_port(&probe_ent->port[2], base + 0x300);
+ pdc_ata_setup_port(&probe_ent->port[2], base + 0x300, NULL);
hp->port_flags[2] = ATA_FLAG_SLAVE_POSS;
printk(KERN_INFO DRV_NAME " PATA port found\n");
} else
@@ -942,12 +937,8 @@ static int pdc_ata_init_one (struct pci_
break;
case board_20619:
probe_ent->n_ports = 4;
-
- pdc_ata_setup_port(&probe_ent->port[2], base + 0x300);
- pdc_ata_setup_port(&probe_ent->port[3], base + 0x380);
-
- probe_ent->port[2].scr_addr = base + 0x600;
- probe_ent->port[3].scr_addr = base + 0x700;
+ pdc_ata_setup_port(&probe_ent->port[2], base + 0x300, NULL);
+ pdc_ata_setup_port(&probe_ent->port[3], base + 0x380, NULL);
break;
default:
BUG();
-
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