From d0e3db40e2a1352aa2a2f425a7d4631bddc03d51 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Wed, 11 Mar 2009 15:46:14 +0900 Subject: sh: add init member to pci_channel data 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 Signed-off-by: Paul Mundt --- arch/sh/boards/mach-dreamcast/setup.c | 6 ------ arch/sh/drivers/pci/ops-cayman.c | 2 +- arch/sh/drivers/pci/ops-dreamcast.c | 18 ++++++++---------- arch/sh/drivers/pci/ops-landisk.c | 2 +- arch/sh/drivers/pci/ops-lboxre2.c | 2 +- arch/sh/drivers/pci/ops-r7780rp.c | 2 +- arch/sh/drivers/pci/ops-rts7751r2d.c | 2 +- arch/sh/drivers/pci/ops-sdk7780.c | 2 +- arch/sh/drivers/pci/ops-se7780.c | 2 +- arch/sh/drivers/pci/ops-sh03.c | 2 +- arch/sh/drivers/pci/ops-snapgear.c | 2 +- arch/sh/drivers/pci/ops-titan.c | 2 +- arch/sh/drivers/pci/pci-sh5.c | 6 ++++++ arch/sh/drivers/pci/pci-sh5.h | 1 + arch/sh/drivers/pci/pci-sh7751.c | 11 +++++------ arch/sh/drivers/pci/pci-sh7751.h | 1 + arch/sh/drivers/pci/pci-sh7780.c | 9 ++++----- arch/sh/drivers/pci/pci-sh7780.h | 1 + arch/sh/drivers/pci/pci.c | 23 ++++++++++++++++++----- arch/sh/include/asm/pci.h | 2 ++ 20 files changed, 56 insertions(+), 42 deletions(-) (limited to 'arch/sh') diff --git a/arch/sh/boards/mach-dreamcast/setup.c b/arch/sh/boards/mach-dreamcast/setup.c index d1bee4884cd..ebe99227d4e 100644 --- a/arch/sh/boards/mach-dreamcast/setup.c +++ b/arch/sh/boards/mach-dreamcast/setup.c @@ -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 = { diff --git a/arch/sh/drivers/pci/ops-cayman.c b/arch/sh/drivers/pci/ops-cayman.c index 38ef76207af..f4a5e14f7e5 100644 --- a/arch/sh/drivers/pci/ops-cayman.c +++ b/arch/sh/drivers/pci/ops-cayman.c @@ -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); diff --git a/arch/sh/drivers/pci/ops-dreamcast.c b/arch/sh/drivers/pci/ops-dreamcast.c index f5d2a2aa6f3..f62063eb649 100644 --- a/arch/sh/drivers/pci/ops-dreamcast.c +++ b/arch/sh/drivers/pci/ops-dreamcast.c @@ -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); diff --git a/arch/sh/drivers/pci/ops-landisk.c b/arch/sh/drivers/pci/ops-landisk.c index 343c072a5a7..c46911d95ec 100644 --- a/arch/sh/drivers/pci/ops-landisk.c +++ b/arch/sh/drivers/pci/ops-landisk.c @@ -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}, }; diff --git a/arch/sh/drivers/pci/ops-lboxre2.c b/arch/sh/drivers/pci/ops-lboxre2.c index 8bff32a2210..f606df2195c 100644 --- a/arch/sh/drivers/pci/ops-lboxre2.c +++ b/arch/sh/drivers/pci/ops-lboxre2.c @@ -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 }, }; diff --git a/arch/sh/drivers/pci/ops-r7780rp.c b/arch/sh/drivers/pci/ops-r7780rp.c index bf32ee8b132..b51b7e4078d 100644 --- a/arch/sh/drivers/pci/ops-r7780rp.c +++ b/arch/sh/drivers/pci/ops-r7780rp.c @@ -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); diff --git a/arch/sh/drivers/pci/ops-rts7751r2d.c b/arch/sh/drivers/pci/ops-rts7751r2d.c index e4208a69732..fe5a231b866 100644 --- a/arch/sh/drivers/pci/ops-rts7751r2d.c +++ b/arch/sh/drivers/pci/ops-rts7751r2d.c @@ -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); diff --git a/arch/sh/drivers/pci/ops-sdk7780.c b/arch/sh/drivers/pci/ops-sdk7780.c index 21d59d4a215..7277cd15ae6 100644 --- a/arch/sh/drivers/pci/ops-sdk7780.c +++ b/arch/sh/drivers/pci/ops-sdk7780.c @@ -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); diff --git a/arch/sh/drivers/pci/ops-se7780.c b/arch/sh/drivers/pci/ops-se7780.c index 78a6f2bc4f1..76a74fb42fb 100644 --- a/arch/sh/drivers/pci/ops-se7780.c +++ b/arch/sh/drivers/pci/ops-se7780.c @@ -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); diff --git a/arch/sh/drivers/pci/ops-sh03.c b/arch/sh/drivers/pci/ops-sh03.c index e1703ff5a4d..0218135f0bb 100644 --- a/arch/sh/drivers/pci/ops-sh03.c +++ b/arch/sh/drivers/pci/ops-sh03.c @@ -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 }, }; diff --git a/arch/sh/drivers/pci/ops-snapgear.c b/arch/sh/drivers/pci/ops-snapgear.c index cba80153dde..2e254c6cf6c 100644 --- a/arch/sh/drivers/pci/ops-snapgear.c +++ b/arch/sh/drivers/pci/ops-snapgear.c @@ -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, } }; diff --git a/arch/sh/drivers/pci/ops-titan.c b/arch/sh/drivers/pci/ops-titan.c index 69fcc5c5d52..ffa79bdf475 100644 --- a/arch/sh/drivers/pci/ops-titan.c +++ b/arch/sh/drivers/pci/ops-titan.c @@ -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); diff --git a/arch/sh/drivers/pci/pci-sh5.c b/arch/sh/drivers/pci/pci-sh5.c index 7a97438762c..008a02ec0d9 100644 --- a/arch/sh/drivers/pci/pci-sh5.c +++ b/arch/sh/drivers/pci/pci-sh5.c @@ -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. */ diff --git a/arch/sh/drivers/pci/pci-sh5.h b/arch/sh/drivers/pci/pci-sh5.h index 7cff3fc04d3..af09f384c7d 100644 --- a/arch/sh/drivers/pci/pci-sh5.h +++ b/arch/sh/drivers/pci/pci-sh5.h @@ -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 */ diff --git a/arch/sh/drivers/pci/pci-sh7751.c b/arch/sh/drivers/pci/pci-sh7751.c index 9c2c01490d6..230db8bd974 100644 --- a/arch/sh/drivers/pci/pci-sh7751.c +++ b/arch/sh/drivers/pci/pci-sh7751.c @@ -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; } diff --git a/arch/sh/drivers/pci/pci-sh7751.h b/arch/sh/drivers/pci/pci-sh7751.h index 6f101e5a6c8..0ea4387df13 100644 --- a/arch/sh/drivers/pci/pci-sh7751.h +++ b/arch/sh/drivers/pci/pci-sh7751.h @@ -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); diff --git a/arch/sh/drivers/pci/pci-sh7780.c b/arch/sh/drivers/pci/pci-sh7780.c index 56f673f66cb..4706e880b08 100644 --- a/arch/sh/drivers/pci/pci-sh7780.c +++ b/arch/sh/drivers/pci/pci-sh7780.c @@ -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; } diff --git a/arch/sh/drivers/pci/pci-sh7780.h b/arch/sh/drivers/pci/pci-sh7780.h index d34961153d5..2f3c92065ec 100644 --- a/arch/sh/drivers/pci/pci-sh7780.h +++ b/arch/sh/drivers/pci/pci-sh7780.h @@ -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); diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c index 0d6ac7a1db4..29ec16e69af 100644 --- a/arch/sh/drivers/pci/pci.c +++ b/arch/sh/drivers/pci/pci.c @@ -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); diff --git a/arch/sh/include/asm/pci.h b/arch/sh/include/asm/pci.h index df1d383e18a..5c7a8f1d2d5 100644 --- a/arch/sh/include/asm/pci.h +++ b/arch/sh/include/asm/pci.h @@ -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; }; /* -- cgit v1.2.3-70-g09d2