mirror of https://gitee.com/openkylin/linux.git
sparc64: Convert SABRE PCI controller driver into a real driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
parent
b20bfe41ba
commit
edbe805b2b
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@ -165,16 +165,12 @@ void pci_config_write32(u32 *addr, u32 val)
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}
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/* Probe for all PCI controllers in the system. */
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extern void sabre_init(struct device_node *, const char *);
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extern void fire_pci_init(struct device_node *, const char *);
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static struct {
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char *model_name;
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void (*init)(struct device_node *, const char *);
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} pci_controller_table[] __initdata = {
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{ "SUNW,sabre", sabre_init },
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{ "pci108e,a000", sabre_init },
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{ "pci108e,a001", sabre_init },
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{ "pciex108e,80f0", fire_pci_init },
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};
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#define PCI_NUM_CONTROLLER_TYPES ARRAY_SIZE(pci_controller_table)
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@ -16,13 +16,14 @@
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#include <asm/apb.h>
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#include <asm/iommu.h>
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#include <asm/irq.h>
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#include <asm/smp.h>
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#include <asm/oplib.h>
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#include <asm/prom.h>
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#include "pci_impl.h"
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#include "iommu_common.h"
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#define DRIVER_NAME "sabre"
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#define PFX DRIVER_NAME ": "
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/* All SABRE registers are 64-bits. The following accessor
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* routines are how they are accessed. The REG parameter
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* is a physical address.
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@ -656,8 +657,8 @@ static void __init sabre_scan_bus(struct pci_pbm_info *pbm)
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* to live at bus 0.
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*/
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if (once != 0) {
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prom_printf("SABRE: Multiple controllers unsupported.\n");
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prom_halt();
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printk(KERN_ERR PFX "Multiple controllers unsupported.\n");
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return;
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}
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once++;
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@ -705,8 +706,10 @@ static int sabre_iommu_init(struct pci_pbm_info *pbm,
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*/
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err = iommu_table_init(iommu, tsbsize * 1024 * 8,
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dvma_offset, dma_mask, pbm->numa_node);
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if (err)
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if (err) {
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printk(KERN_ERR PFX "iommu_table_init() failed\n");
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return err;
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}
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sabre_write(pbm->controller_regs + SABRE_IOMMU_TSBBASE,
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__pa(iommu->page_table));
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@ -722,9 +725,8 @@ static int sabre_iommu_init(struct pci_pbm_info *pbm,
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control |= SABRE_IOMMU_TSBSZ_128K;
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break;
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default:
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prom_printf("iommu_init: Illegal TSB size %d\n", tsbsize);
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prom_halt();
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break;
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printk(KERN_ERR PFX "Illegal TSB size %d\n", tsbsize);
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return -EINVAL;
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}
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sabre_write(pbm->controller_regs + SABRE_IOMMU_CONTROL, control);
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@ -739,7 +741,6 @@ static void __init sabre_pbm_init(struct pci_controller_info *p,
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pbm->numa_node = -1;
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pbm->scan_bus = sabre_scan_bus;
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pbm->pci_ops = &sun4u_pci_ops;
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pbm->config_space_reg_bits = 8;
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@ -751,46 +752,49 @@ static void __init sabre_pbm_init(struct pci_controller_info *p,
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pci_get_pbm_props(pbm);
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pci_determine_mem_io_space(pbm);
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sabre_scan_bus(pbm);
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}
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void __init sabre_init(struct device_node *dp, char *model_name)
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static int __devinit sabre_probe(struct of_device *op,
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const struct of_device_id *match)
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{
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const struct linux_prom64_registers *pr_regs;
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struct device_node *dp = op->node;
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struct pci_controller_info *p;
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struct pci_pbm_info *pbm;
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struct iommu *iommu;
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int tsbsize;
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const u32 *vdma;
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u32 upa_portid, dma_mask;
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struct iommu *iommu;
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int tsbsize, err;
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const u32 *vdma;
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u64 clear_irq;
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hummingbird_p = 0;
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if (!strcmp(model_name, "pci108e,a001"))
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hummingbird_p = 1;
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else if (!strcmp(model_name, "SUNW,sabre")) {
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const char *compat = of_get_property(dp, "compatible", NULL);
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if (compat && !strcmp(compat, "pci108e,a001"))
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hummingbird_p = 1;
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if (!hummingbird_p) {
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struct device_node *dp;
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hummingbird_p = (match->data != NULL);
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if (!hummingbird_p) {
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struct device_node *cpu_dp;
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/* Of course, Sun has to encode things a thousand
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* different ways, inconsistently.
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*/
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for_each_node_by_type(dp, "cpu") {
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if (!strcmp(dp->name, "SUNW,UltraSPARC-IIe"))
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hummingbird_p = 1;
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}
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/* Of course, Sun has to encode things a thousand
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* different ways, inconsistently.
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*/
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for_each_node_by_type(cpu_dp, "cpu") {
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if (!strcmp(cpu_dp->name, "SUNW,UltraSPARC-IIe"))
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hummingbird_p = 1;
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}
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}
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err = -ENOMEM;
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p = kzalloc(sizeof(*p), GFP_ATOMIC);
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if (!p)
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goto fatal_memory_error;
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if (!p) {
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printk(KERN_ERR PFX "Cannot allocate controller info.\n");
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goto out_free;
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}
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iommu = kzalloc(sizeof(*iommu), GFP_ATOMIC);
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if (!iommu)
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goto fatal_memory_error;
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if (!iommu) {
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printk(KERN_ERR PFX "Cannot allocate PBM iommu.\n");
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goto out_free;
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}
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pbm = &p->pbm_A;
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pbm->iommu = iommu;
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@ -806,6 +810,11 @@ void __init sabre_init(struct device_node *dp, char *model_name)
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*/
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pr_regs = of_get_property(dp, "reg", NULL);
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err = -ENODEV;
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if (!pr_regs) {
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printk(KERN_ERR PFX "No reg property\n");
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goto out_free;
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}
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/*
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* First REG in property is base of entire SABRE register space.
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@ -832,6 +841,10 @@ void __init sabre_init(struct device_node *dp, char *model_name)
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(pbm->controller_regs + SABRE_CONFIGSPACE);
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vdma = of_get_property(dp, "virtual-dma", NULL);
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if (!vdma) {
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printk(KERN_ERR PFX "No virtual-dma property\n");
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goto out_free;
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}
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dma_mask = vdma[0];
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switch(vdma[1]) {
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@ -849,20 +862,51 @@ void __init sabre_init(struct device_node *dp, char *model_name)
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tsbsize = 128;
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break;
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default:
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prom_printf("SABRE: strange virtual-dma size.\n");
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prom_halt();
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printk(KERN_ERR PFX "Strange virtual-dma size.\n");
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goto out_free;
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}
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if (sabre_iommu_init(pbm, tsbsize, vdma[0], dma_mask))
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goto fatal_memory_error;
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err = sabre_iommu_init(pbm, tsbsize, vdma[0], dma_mask);
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if (err)
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goto out_free;
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/*
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* Look for APB underneath.
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*/
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sabre_pbm_init(p, pbm, dp);
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return;
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return 0;
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fatal_memory_error:
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prom_printf("SABRE: Fatal memory allocation error.\n");
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prom_halt();
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out_free:
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if (p) {
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if (p->pbm_A.iommu)
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kfree(p->pbm_A.iommu);
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kfree(p);
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}
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return err;
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}
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static struct of_device_id sabre_match[] = {
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{
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.name = "pci",
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.compatible = "pci108e,a001",
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.data = (void *) 1,
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},
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{
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.name = "pci",
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.compatible = "pci108e,a000",
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},
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{},
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};
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static struct of_platform_driver sabre_driver = {
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.name = DRIVER_NAME,
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.match_table = sabre_match,
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.probe = sabre_probe,
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};
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static int __init sabre_init(void)
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{
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return of_register_driver(&sabre_driver, &of_bus_type);
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}
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subsys_initcall(sabre_init);
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