diff options
Diffstat (limited to 'arch/mips/sgi-ip27/ip27-xtalk.c')
| -rw-r--r-- | arch/mips/sgi-ip27/ip27-xtalk.c | 61 |
1 files changed, 49 insertions, 12 deletions
diff --git a/arch/mips/sgi-ip27/ip27-xtalk.c b/arch/mips/sgi-ip27/ip27-xtalk.c index ce06aaa115ae..bd5cb855c6e5 100644 --- a/arch/mips/sgi-ip27/ip27-xtalk.c +++ b/arch/mips/sgi-ip27/ip27-xtalk.c @@ -9,6 +9,9 @@ #include <linux/kernel.h> #include <linux/smp.h> +#include <linux/platform_device.h> +#include <linux/platform_data/xtalk-bridge.h> +#include <asm/sn/addrs.h> #include <asm/sn/types.h> #include <asm/sn/klconfig.h> #include <asm/sn/hub.h> @@ -20,7 +23,48 @@ #define XXBOW_WIDGET_PART_NUM 0xd000 /* Xbow in Xbridge */ #define BASE_XBOW_PORT 8 /* Lowest external port */ -extern int bridge_probe(nasid_t nasid, int widget, int masterwid); +static void bridge_platform_create(nasid_t nasid, int widget, int masterwid) +{ + struct xtalk_bridge_platform_data *bd; + struct platform_device *pdev; + unsigned long offset; + + bd = kzalloc(sizeof(*bd), GFP_KERNEL); + if (!bd) + goto no_mem; + pdev = platform_device_alloc("xtalk-bridge", PLATFORM_DEVID_AUTO); + if (!pdev) { + kfree(bd); + goto no_mem; + } + + offset = NODE_OFFSET(nasid); + + bd->bridge_addr = RAW_NODE_SWIN_BASE(nasid, widget); + bd->intr_addr = BIT_ULL(47) + 0x01800000 + PI_INT_PEND_MOD; + bd->nasid = nasid; + bd->masterwid = masterwid; + + bd->mem.name = "Bridge PCI MEM"; + bd->mem.start = offset + (widget << SWIN_SIZE_BITS); + bd->mem.end = bd->mem.start + SWIN_SIZE - 1; + bd->mem.flags = IORESOURCE_MEM; + bd->mem_offset = offset; + + bd->io.name = "Bridge PCI IO"; + bd->io.start = offset + (widget << SWIN_SIZE_BITS); + bd->io.end = bd->io.start + SWIN_SIZE - 1; + bd->io.flags = IORESOURCE_IO; + bd->io_offset = offset; + + platform_device_add_data(pdev, bd, sizeof(*bd)); + platform_device_add(pdev); + pr_info("xtalk:n%d/%x bridge widget\n", nasid, widget); + return; + +no_mem: + pr_warn("xtalk:n%d/%x bridge create out of memory\n", nasid, widget); +} static int probe_one_port(nasid_t nasid, int widget, int masterwid) { @@ -31,13 +75,10 @@ static int probe_one_port(nasid_t nasid, int widget, int masterwid) (RAW_NODE_SWIN_BASE(nasid, widget) + WIDGET_ID); partnum = XWIDGET_PART_NUM(widget_id); - printk(KERN_INFO "Cpu %d, Nasid 0x%x, widget 0x%x (partnum 0x%x) is ", - smp_processor_id(), nasid, widget, partnum); - switch (partnum) { case BRIDGE_WIDGET_PART_NUM: case XBRIDGE_WIDGET_PART_NUM: - bridge_probe(nasid, widget, masterwid); + bridge_platform_create(nasid, widget, masterwid); break; default: break; @@ -52,8 +93,6 @@ static int xbow_probe(nasid_t nasid) klxbow_t *xbow_p; unsigned masterwid, i; - printk("is xbow\n"); - /* * found xbow, so may have multiple bridges * need to probe xbow @@ -117,19 +156,17 @@ static void xtalk_probe_node(cnodeid_t nid) (RAW_NODE_SWIN_BASE(nasid, 0x0) + WIDGET_ID); partnum = XWIDGET_PART_NUM(widget_id); - printk(KERN_INFO "Cpu %d, Nasid 0x%x: partnum 0x%x is ", - smp_processor_id(), nasid, partnum); - switch (partnum) { case BRIDGE_WIDGET_PART_NUM: - bridge_probe(nasid, 0x8, 0xa); + bridge_platform_create(nasid, 0x8, 0xa); break; case XBOW_WIDGET_PART_NUM: case XXBOW_WIDGET_PART_NUM: + pr_info("xtalk:n%d/0 xbow widget\n", nasid); xbow_probe(nasid); break; default: - printk(" unknown widget??\n"); + pr_info("xtalk:n%d/0 unknown widget (0x%x)\n", nasid, partnum); break; } } |