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sh: add init member to pci_channel data

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This patch adds an init callback to struct pci_channel and makes sure
it is initialized properly. Code is added to call this init function
from pcibios_init(). Return values are adjusted and a warning is is
printed if init fails.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Magnus Damm 2009-03-11 15:46:14 +09:00 committed by Paul Mundt
parent b8b47bfbe4
commit d0e3db40e2
20 changed files with 56 additions and 42 deletions
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6
arch/sh/boards/mach-dreamcast/setup.c
View File

@ -30,7 +30,6 @@
extern struct irq_chip systemasic_int;
extern void aica_time_init(void);
extern int gapspci_init(void);
extern int systemasic_irq_demux(int);
static void __init dreamcast_setup(char **cmdline_p)
@ -51,11 +50,6 @@ static void __init dreamcast_setup(char **cmdline_p)
handle_level_irq);
board_time_init = aica_time_init;
#ifdef CONFIG_PCI
if (gapspci_init() < 0)
printk(KERN_WARNING "GAPSPCI was not detected.\n");
#endif
}
static struct sh_machine_vector mv_dreamcast __initmv = {

2
arch/sh/drivers/pci/ops-cayman.c
View File

@ -77,7 +77,7 @@ int __init pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin)
}
struct pci_channel board_pci_channels[] = {
{ &sh5_pci_ops, NULL, NULL, 0, 0xff },
{ sh5_pci_init, &sh5_pci_ops, NULL, NULL, 0, 0xff },
{ NULL, NULL, NULL, 0, 0 },
};
EXPORT_SYMBOL(board_pci_channels);

18
arch/sh/drivers/pci/ops-dreamcast.c
View File

@ -42,15 +42,6 @@ static struct resource gapspci_mem_resource = {
.flags = IORESOURCE_MEM,
};
static struct pci_ops gapspci_pci_ops;
struct pci_channel board_pci_channels[] = {
{ &gapspci_pci_ops, &gapspci_io_resource,
&gapspci_mem_resource, 0, 1 },
{ 0, }
};
EXPORT_SYMBOL(board_pci_channels);
/*
* The !gapspci_config_access case really shouldn't happen, ever, unless
* someone implicitly messes around with the last devfn value.. otherwise we
@ -116,7 +107,7 @@ static struct pci_ops gapspci_pci_ops = {
* gapspci init
*/
int __init gapspci_init(void)
static int __init gapspci_init(struct pci_channel *chan)
{
char idbuf[16];
int i;
@ -168,3 +159,10 @@ char * __devinit pcibios_setup(char *str)
{
return str;
}
struct pci_channel board_pci_channels[] = {
{ gapspci_init, &gapspci_pci_ops, &gapspci_io_resource,
&gapspci_mem_resource, 0, 1 },
{ 0, }
};
EXPORT_SYMBOL(board_pci_channels);

2
arch/sh/drivers/pci/ops-landisk.c
View File

@ -30,7 +30,7 @@ static struct resource sh7751_mem_resource = {
};
struct pci_channel board_pci_channels[] = {
{&sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0x3ff},
{ sh7751_pci_init, &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0x3ff},
{NULL, NULL, NULL, 0, 0},
};

2
arch/sh/drivers/pci/ops-lboxre2.c
View File

@ -39,7 +39,7 @@ static struct resource sh7751_mem_resource = {
extern struct pci_ops sh7751_pci_ops;
struct pci_channel board_pci_channels[] = {
{ &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
{ sh7751_pci_init, &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
{ NULL, NULL, NULL, 0, 0 },
};

2
arch/sh/drivers/pci/ops-r7780rp.c
View File

@ -43,7 +43,7 @@ static struct resource sh7780_mem_resource = {
extern struct pci_ops sh7780_pci_ops;
struct pci_channel board_pci_channels[] = {
{ &sh4_pci_ops, &sh7780_io_resource, &sh7780_mem_resource, 0, 0xff },
{ sh7780_pci_init, &sh4_pci_ops, &sh7780_io_resource, &sh7780_mem_resource, 0, 0xff },
{ NULL, NULL, NULL, 0, 0 },
};
EXPORT_SYMBOL(board_pci_channels);

2
arch/sh/drivers/pci/ops-rts7751r2d.c
View File

@ -47,7 +47,7 @@ static struct resource sh7751_mem_resource = {
extern struct pci_ops sh7751_pci_ops;
struct pci_channel board_pci_channels[] = {
{ &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
{ sh7751_pci_init, &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
{ NULL, NULL, NULL, 0, 0 },
};
EXPORT_SYMBOL(board_pci_channels);

2
arch/sh/drivers/pci/ops-sdk7780.c
View File

@ -49,7 +49,7 @@ static struct resource sdk7780_mem_resource = {
};
struct pci_channel board_pci_channels[] = {
{ &sh4_pci_ops, &sdk7780_io_resource, &sdk7780_mem_resource, 0, 0xff },
{ sh7780_pci_init, &sh4_pci_ops, &sdk7780_io_resource, &sdk7780_mem_resource, 0, 0xff },
{ NULL, NULL, NULL, 0, 0 },
};
EXPORT_SYMBOL(board_pci_channels);

2
arch/sh/drivers/pci/ops-se7780.c
View File

@ -58,7 +58,7 @@ static struct resource se7780_mem_resource = {
extern struct pci_ops se7780_pci_ops;
struct pci_channel board_pci_channels[] = {
{ &sh4_pci_ops, &se7780_io_resource, &se7780_mem_resource, 0, 0xff },
{ sh7780_pci_init, &sh4_pci_ops, &se7780_io_resource, &se7780_mem_resource, 0, 0xff },
{ NULL, NULL, NULL, 0, 0 },
};
EXPORT_SYMBOL(board_pci_channels);

2
arch/sh/drivers/pci/ops-sh03.c
View File

@ -39,7 +39,7 @@ static struct resource sh7751_mem_resource = {
extern struct pci_ops sh4_pci_ops;
struct pci_channel board_pci_channels[] = {
{ &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
{ sh7751_pci_init, &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
{ NULL, NULL, NULL, 0, 0 },
};

2
arch/sh/drivers/pci/ops-snapgear.c
View File

@ -40,7 +40,7 @@ static struct resource sh7751_mem_resource = {
};
struct pci_channel board_pci_channels[] = {
{ &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
{ sh7751_pci_init, &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
{ 0, }
};

2
arch/sh/drivers/pci/ops-titan.c
View File

@ -52,7 +52,7 @@ static struct resource sh7751_mem_resource = {
};
struct pci_channel board_pci_channels[] = {
{ &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
{ sh7751_pci_init, &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
{ NULL, NULL, NULL, 0, 0 },
};
EXPORT_SYMBOL(board_pci_channels);

6
arch/sh/drivers/pci/pci-sh5.c
View File

@ -27,6 +27,12 @@
unsigned long pcicr_virt;
unsigned long PCI_IO_AREA;
int __init sh5_pci_init(struct pci_channel *chan)
{
pr_debug("PCI: Starting intialization.\n");
return pcibios_init_platform();
}
/* Rounds a number UP to the nearest power of two. Used for
* sizing the PCI window.
*/

1
arch/sh/drivers/pci/pci-sh5.h
View File

@ -108,6 +108,7 @@ extern unsigned long pcicr_virt;
extern struct pci_ops sh5_pci_ops;
/* arch/sh/drivers/pci/pci-sh5.c */
int sh5_pci_init(struct pci_channel *chan);
int sh5pci_init(unsigned long memStart, unsigned long memSize);
#endif /* __PCI_SH5_H */

11
arch/sh/drivers/pci/pci-sh7751.c
View File

@ -32,7 +32,7 @@
* space mapping) will be called via the platform defined function
* pcibios_init_platform().
*/
static int __init sh7751_pci_init(void)
int __init sh7751_pci_init(struct pci_channel *chan)
{
unsigned int id;
int ret;
@ -40,19 +40,18 @@ static int __init sh7751_pci_init(void)
pr_debug("PCI: Starting intialization.\n");
/* check for SH7751/SH7751R hardware */
id = pci_read_reg(NULL, SH7751_PCICONF0);
id = pci_read_reg(chan, SH7751_PCICONF0);
if (id != ((SH7751_DEVICE_ID << 16) | SH7751_VENDOR_ID) &&
id != ((SH7751R_DEVICE_ID << 16) | SH7751_VENDOR_ID)) {
pr_debug("PCI: This is not an SH7751(R) (%x)\n", id);
return -ENODEV;
}
if ((ret = sh4_pci_check_direct(NULL)) != 0)
if ((ret = sh4_pci_check_direct(chan)) != 0)
return ret;
return pcibios_init_platform();
}
subsys_initcall(sh7751_pci_init);
static int __init __area_sdram_check(struct pci_channel *chan,
unsigned int area)
@ -178,7 +177,7 @@ int __init sh7751_pcic_init(struct pci_channel *chan,
}
if (!word)
return 0;
return -1;
/* configure the wait control registers */
word = ctrl_inl(SH7751_WCR1);
@ -202,5 +201,5 @@ int __init sh7751_pcic_init(struct pci_channel *chan,
word = SH4_PCICR_PREFIX | SH4_PCICR_CFIN | SH4_PCICR_ARBM;
pci_write_reg(chan, word, SH4_PCICR);
return 1;
return 0;
}

1
arch/sh/drivers/pci/pci-sh7751.h
View File

@ -130,6 +130,7 @@
struct sh4_pci_address_map;
/* arch/sh/drivers/pci/pci-sh7751.c */
int sh7751_pci_init(struct pci_channel *chan);
int sh7751_pcic_init(struct pci_channel *chan,
struct sh4_pci_address_map *map);

9
arch/sh/drivers/pci/pci-sh7780.c
View File

@ -45,7 +45,7 @@
* space mapping) will be called via the platform defined function
* pcibios_init_platform().
*/
static int __init sh7780_pci_init(void)
int __init sh7780_pci_init(struct pci_channel *chan)
{
unsigned int id;
int ret, match = 0;
@ -55,7 +55,7 @@ static int __init sh7780_pci_init(void)
ctrl_outl(0x00000001, SH7780_PCI_VCR2); /* Enable PCIC */
/* check for SH7780/SH7780R hardware */
id = pci_read_reg(NULL, SH7780_PCIVID);
id = pci_read_reg(chan, SH7780_PCIVID);
if ((id & 0xffff) == SH7780_VENDOR_ID) {
switch ((id >> 16) & 0xffff) {
case SH7763_DEVICE_ID:
@ -82,12 +82,11 @@ static int __init sh7780_pci_init(void)
ctrl_outl(0x33333333, INTC_INTPRI);
}
if ((ret = sh4_pci_check_direct(NULL)) != 0)
if ((ret = sh4_pci_check_direct(chan)) != 0)
return ret;
return pcibios_init_platform();
}
core_initcall(sh7780_pci_init);
int __init sh7780_pcic_init(struct pci_channel *chan,
struct sh4_pci_address_map *map)
@ -153,5 +152,5 @@ int __init sh7780_pcic_init(struct pci_channel *chan,
word = SH4_PCICR_PREFIX | SH4_PCICR_CFIN | SH4_PCICR_FTO;
pci_write_reg(chan, word, SH4_PCICR);
return 1;
return 0;
}

1
arch/sh/drivers/pci/pci-sh7780.h
View File

@ -109,6 +109,7 @@
struct sh4_pci_address_map;
/* arch/sh/drivers/pci/pci-sh7780.c */
int sh7780_pci_init(struct pci_channel *chan);
int sh7780_pcic_init(struct pci_channel *chan,
struct sh4_pci_address_map *map);

23
arch/sh/drivers/pci/pci.c
View File

@ -28,18 +28,31 @@ static int __init pcibios_init(void)
struct pci_bus *bus;
int busno;
/* init channels */
busno = 0;
for (p = board_pci_channels; p->init; p++) {
if (p->init(p) == 0)
p->enabled = 1;
else
pr_err("Unable to init pci channel %d\n", busno);
busno++;
}
#ifdef CONFIG_PCI_AUTO
/* assign resources */
busno = 0;
for (p = board_pci_channels; p->pci_ops != NULL; p++)
busno = pciauto_assign_resources(busno, p) + 1;
for (p = board_pci_channels; p->init; p++)
if (p->enabled)
busno = pciauto_assign_resources(busno, p) + 1;
#endif
/* scan the buses */
busno = 0;
for (p = board_pci_channels; p->pci_ops != NULL; p++) {
bus = pci_scan_bus(busno, p->pci_ops, p);
busno = bus->subordinate + 1;
for (p = board_pci_channels; p->init; p++) {
if (p->enabled) {
bus = pci_scan_bus(busno, p->pci_ops, p);
busno = bus->subordinate + 1;
}
}
pci_fixup_irqs(pci_common_swizzle, pcibios_map_platform_irq);

2
arch/sh/include/asm/pci.h
View File

@ -17,11 +17,13 @@
* external) PCI controllers.
*/
struct pci_channel {
int (*init)(struct pci_channel *chan);
struct pci_ops *pci_ops;
struct resource *io_resource;
struct resource *mem_resource;
int first_devfn;
int last_devfn;
int enabled;
};
/*