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Message-Id: <20080214003656.12879.21968.sendpatchset@localhost.localdomain>
Date: Thu, 14 Feb 2008 01:36:56 +0100
From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To: linux-ide@...r.kernel.org
Cc: linuxppc-dev@...abs.org,
Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
linux-kernel@...r.kernel.org
Subject: [PATCH 05/11] ppc/mpc8xx: remove ppc_ide_md hooks
* Initialize IDE ports in mpc8xx_ide_probe().
* Remove m8xx_ide_init() and ppc_ide_md hooks - no need for them
(IDE mpc8xx host driver takes care of all this setup).
* Remove needless 'if (irq)' and 'if (data_port >= MAX_HWIFS)' checks
from m8xx_ide_init_hwif_ports().
* Remove 'ctrl_port' and 'irq' arguments from m8xx_ide_init_hwif_ports().
* Rename m8xx_ide_init_hwif_ports() to m8xx_ide_init_ports().
* Add __init tag to m8xx_ide_init_ports().
This patch fixes hwif->irq always being overriden to 0 (== auto-probe, is
this even working on PPC?) because of ide_init_default_irq() call in ide.c.
There should be no other functional changes.
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
arch/ppc/syslib/m8xx_setup.c | 6 ---
drivers/ide/ppc/mpc8xx.c | 86 +++++++++++--------------------------------
2 files changed, 22 insertions(+), 70 deletions(-)
Index: b/arch/ppc/syslib/m8xx_setup.c
===================================================================
--- a/arch/ppc/syslib/m8xx_setup.c
+++ b/arch/ppc/syslib/m8xx_setup.c
@@ -87,8 +87,6 @@ void m8xx_calibrate_decr(void);
unsigned char __res[sizeof(bd_t)];
-extern void m8xx_ide_init(void);
-
extern unsigned long find_available_memory(void);
extern void m8xx_cpm_reset(void);
extern void m8xx_wdt_handler_install(bd_t *bp);
@@ -474,8 +472,4 @@ platform_init(unsigned long r3, unsigned
ppc_md.find_end_of_memory = m8xx_find_end_of_memory;
ppc_md.setup_io_mappings = m8xx_map_io;
-
-#if defined(CONFIG_BLK_DEV_MPC8xx_IDE)
- m8xx_ide_init();
-#endif
}
Index: b/drivers/ide/ppc/mpc8xx.c
===================================================================
--- a/drivers/ide/ppc/mpc8xx.c
+++ b/drivers/ide/ppc/mpc8xx.c
@@ -99,32 +99,6 @@ static int _slot_ = -1; /* will be rea
/* Make clock cycles and always round up */
#define PCMCIA_MK_CLKS( t, T ) (( (t) * ((T)/1000000) + 999U ) / 1000U )
-
-
-/*
- * IDE stuff.
- */
-static int
-m8xx_ide_default_irq(unsigned long base)
-{
-#ifdef CONFIG_BLK_DEV_MPC8xx_IDE
- if (base >= MAX_HWIFS)
- return 0;
-
- printk("[%d] m8xx_ide_default_irq %d\n",__LINE__,ioport_dsc[base].irq);
-
- return (ioport_dsc[base].irq);
-#else
- return 9;
-#endif
-}
-
-static unsigned long
-m8xx_ide_default_io_base(int index)
-{
- return index;
-}
-
#define M8XX_PCMCIA_CD2(slot) (0x10000000 >> (slot << 4))
#define M8XX_PCMCIA_CD1(slot) (0x08000000 >> (slot << 4))
@@ -149,12 +123,11 @@ static int pcmcia_schlvl = PCMCIA_SCHLVL
*/
/*
- * m8xx_ide_init_hwif_ports for a direct IDE interface _using_
+ * m8xx_ide_init_ports() for a direct IDE interface _using_
+ * MPC8xx's internal PCMCIA interface
*/
#if defined(CONFIG_IDE_8xx_PCCARD) || defined(CONFIG_IDE_8xx_DIRECT)
-static void
-m8xx_ide_init_hwif_ports(hw_regs_t *hw, unsigned long data_port,
- unsigned long ctrl_port, int *irq)
+static void __init m8xx_ide_init_ports(hw_regs_t *hw, unsigned long data_port)
{
unsigned long *p = hw->io_ports;
int i;
@@ -173,8 +146,6 @@ m8xx_ide_init_hwif_ports(hw_regs_t *hw,
unsigned long base;
*p = 0;
- if (irq)
- *irq = 0;
pcmp = (pcmconf8xx_t *)(&(((immap_t *)IMAP_ADDR)->im_pcmcia));
@@ -248,9 +219,6 @@ m8xx_ide_init_hwif_ports(hw_regs_t *hw,
}
}
- if (data_port >= MAX_HWIFS)
- return;
-
if (_slot_ == -1) {
printk ("PCMCIA slot has not been defined! Using A as default\n");
_slot_ = 0;
@@ -292,11 +260,13 @@ m8xx_ide_init_hwif_ports(hw_regs_t *hw,
*p++ = base + ioport_dsc[data_port].reg_off[i];
}
- if (irq) {
+ hw->irq = ioport_dsc[data_port].irq;
+ hw->ack_intr = (ide_ack_intr_t *)ide_interrupt_ack;
+
#ifdef CONFIG_IDE_8xx_PCCARD
+ {
unsigned int reg;
- *irq = ioport_dsc[data_port].irq;
if (_slot_)
pgcrx = &((immap_t *) IMAP_ADDR)->im_pcmcia.pcmc_pgcrb;
else
@@ -306,14 +276,11 @@ m8xx_ide_init_hwif_ports(hw_regs_t *hw,
reg |= mk_int_int_mask (pcmcia_schlvl) << 24;
reg |= mk_int_int_mask (pcmcia_schlvl) << 16;
*pgcrx = reg;
-#else /* direct connected IDE drive, i.e. external IRQ, not the PCMCIA irq */
- *irq = ioport_dsc[data_port].irq;
-#endif /* CONFIG_IDE_8xx_PCCARD */
}
+#endif /* CONFIG_IDE_8xx_PCCARD */
ide_hwifs[data_port].pio_mask = ATA_PIO4;
ide_hwifs[data_port].set_pio_mode = m8xx_ide_set_pio_mode;
- ide_hwifs[data_port].ack_intr = (ide_ack_intr_t *)ide_interrupt_ack;
/* Enable Harddisk Interrupt,
* and make it edge sensitive
@@ -329,16 +296,15 @@ m8xx_ide_init_hwif_ports(hw_regs_t *hw,
/* Enable falling edge irq */
pcmp->pcmc_per = 0x100000 >> (16 * _slot_);
#endif /* CONFIG_IDE_8xx_PCCARD */
-} /* m8xx_ide_init_hwif_ports() using 8xx internal PCMCIA interface */
+}
#endif /* CONFIG_IDE_8xx_PCCARD || CONFIG_IDE_8xx_DIRECT */
/*
- * m8xx_ide_init_hwif_ports for a direct IDE interface _not_ using
+ * m8xx_ide_init_ports() for a direct IDE interface _not_ using
* MPC8xx's internal PCMCIA interface
*/
#if defined(CONFIG_IDE_EXT_DIRECT)
-void m8xx_ide_init_hwif_ports (hw_regs_t *hw,
- unsigned long data_port, unsigned long ctrl_port, int *irq)
+static void __init m8xx_ide_init_ports(hw_regs_t *hw, unsigned long data_port)
{
unsigned long *p = hw->io_ports;
int i;
@@ -349,8 +315,6 @@ void m8xx_ide_init_hwif_ports (hw_regs_t
unsigned long base;
*p = 0;
- if (irq)
- *irq = 0;
if (!ide_base) {
@@ -372,9 +336,6 @@ void m8xx_ide_init_hwif_ports (hw_regs_t
#endif
}
- if (data_port >= MAX_HWIFS)
- return;
-
base = ide_base + ioport_dsc[data_port].base_off;
#ifdef DEBUG
printk ("base: %08x + %08x = %08x\n",
@@ -392,14 +353,12 @@ void m8xx_ide_init_hwif_ports (hw_regs_t
*p++ = base + ioport_dsc[data_port].reg_off[i];
}
- if (irq) {
- /* direct connected IDE drive, i.e. external IRQ */
- *irq = ioport_dsc[data_port].irq;
- }
+ /* direct connected IDE drive, i.e. external IRQ */
+ hw->irq = ioport_dsc[data_port].irq;
+ hw->ack_intr = (ide_ack_intr_t *)ide_interrupt_ack;
ide_hwifs[data_port].pio_mask = ATA_PIO4;
ide_hwifs[data_port].set_pio_mode = m8xx_ide_set_pio_mode;
- ide_hwifs[data_port].ack_intr = (ide_ack_intr_t *)ide_interrupt_ack;
/* Enable Harddisk Interrupt,
* and make it edge sensitive
@@ -407,8 +366,7 @@ void m8xx_ide_init_hwif_ports (hw_regs_t
/* (11-18) Set edge detect for irq, no wakeup from low power mode */
((immap_t *) IMAP_ADDR)->im_siu_conf.sc_siel |=
(0x80000000 >> ioport_dsc[data_port].irq);
-} /* m8xx_ide_init_hwif_ports() for CONFIG_IDE_8xx_DIRECT */
-
+}
#endif /* CONFIG_IDE_8xx_DIRECT */
@@ -829,20 +787,20 @@ static int identify (volatile u8 *p)
return (0); /* don't know */
}
-void m8xx_ide_init(void)
-{
- ppc_ide_md.default_irq = m8xx_ide_default_irq;
- ppc_ide_md.default_io_base = m8xx_ide_default_io_base;
- ppc_ide_md.ide_init_hwif = m8xx_ide_init_hwif_ports;
-}
-
static int __init mpc8xx_ide_probe(void)
{
+ hw_regs_t hw;
u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
#ifdef IDE0_BASE_OFFSET
+ memset(&hw, 0, sizeof(hw));
+ m8xx_ide_init_ports(&hw, 0);
+ ide_init_port_hw(&ide_hwifs[0], &hw);
idx[0] = 0;
#ifdef IDE1_BASE_OFFSET
+ memset(&hw, 0, sizeof(hw));
+ m8xx_ide_init_ports(&hw, 1);
+ ide_init_port_hw(&ide_hwifs[1], &hw);
idx[1] = 1;
#endif
#endif
--
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