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-rw-r--r--arch/sparc64/kernel/prom.c787
1 files changed, 785 insertions, 2 deletions
diff --git a/arch/sparc64/kernel/prom.c b/arch/sparc64/kernel/prom.c
index 8e87e7ea032..8a70c52c044 100644
--- a/arch/sparc64/kernel/prom.c
+++ b/arch/sparc64/kernel/prom.c
@@ -15,6 +15,7 @@
* 2 of the License, or (at your option) any later version.
*/
+#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/string.h>
@@ -23,7 +24,11 @@
#include <linux/module.h>
#include <asm/prom.h>
+#include <asm/of_device.h>
#include <asm/oplib.h>
+#include <asm/irq.h>
+#include <asm/asi.h>
+#include <asm/upa.h>
static struct device_node *allnodes;
@@ -190,6 +195,36 @@ int of_getintprop_default(struct device_node *np, const char *name, int def)
}
EXPORT_SYMBOL(of_getintprop_default);
+int of_n_addr_cells(struct device_node *np)
+{
+ int* ip;
+ do {
+ if (np->parent)
+ np = np->parent;
+ ip = of_get_property(np, "#address-cells", NULL);
+ if (ip != NULL)
+ return *ip;
+ } while (np->parent);
+ /* No #address-cells property for the root node, default to 2 */
+ return 2;
+}
+EXPORT_SYMBOL(of_n_addr_cells);
+
+int of_n_size_cells(struct device_node *np)
+{
+ int* ip;
+ do {
+ if (np->parent)
+ np = np->parent;
+ ip = of_get_property(np, "#size-cells", NULL);
+ if (ip != NULL)
+ return *ip;
+ } while (np->parent);
+ /* No #size-cells property for the root node, default to 1 */
+ return 1;
+}
+EXPORT_SYMBOL(of_n_size_cells);
+
int of_set_property(struct device_node *dp, const char *name, void *val, int len)
{
struct property **prevp;
@@ -253,6 +288,754 @@ static void * __init prom_early_alloc(unsigned long size)
return ret;
}
+#ifdef CONFIG_PCI
+/* PSYCHO interrupt mapping support. */
+#define PSYCHO_IMAP_A_SLOT0 0x0c00UL
+#define PSYCHO_IMAP_B_SLOT0 0x0c20UL
+static unsigned long psycho_pcislot_imap_offset(unsigned long ino)
+{
+ unsigned int bus = (ino & 0x10) >> 4;
+ unsigned int slot = (ino & 0x0c) >> 2;
+
+ if (bus == 0)
+ return PSYCHO_IMAP_A_SLOT0 + (slot * 8);
+ else
+ return PSYCHO_IMAP_B_SLOT0 + (slot * 8);
+}
+
+#define PSYCHO_IMAP_SCSI 0x1000UL
+#define PSYCHO_IMAP_ETH 0x1008UL
+#define PSYCHO_IMAP_BPP 0x1010UL
+#define PSYCHO_IMAP_AU_REC 0x1018UL
+#define PSYCHO_IMAP_AU_PLAY 0x1020UL
+#define PSYCHO_IMAP_PFAIL 0x1028UL
+#define PSYCHO_IMAP_KMS 0x1030UL
+#define PSYCHO_IMAP_FLPY 0x1038UL
+#define PSYCHO_IMAP_SHW 0x1040UL
+#define PSYCHO_IMAP_KBD 0x1048UL
+#define PSYCHO_IMAP_MS 0x1050UL
+#define PSYCHO_IMAP_SER 0x1058UL
+#define PSYCHO_IMAP_TIM0 0x1060UL
+#define PSYCHO_IMAP_TIM1 0x1068UL
+#define PSYCHO_IMAP_UE 0x1070UL
+#define PSYCHO_IMAP_CE 0x1078UL
+#define PSYCHO_IMAP_A_ERR 0x1080UL
+#define PSYCHO_IMAP_B_ERR 0x1088UL
+#define PSYCHO_IMAP_PMGMT 0x1090UL
+#define PSYCHO_IMAP_GFX 0x1098UL
+#define PSYCHO_IMAP_EUPA 0x10a0UL
+
+static unsigned long __psycho_onboard_imap_off[] = {
+/*0x20*/ PSYCHO_IMAP_SCSI,
+/*0x21*/ PSYCHO_IMAP_ETH,
+/*0x22*/ PSYCHO_IMAP_BPP,
+/*0x23*/ PSYCHO_IMAP_AU_REC,
+/*0x24*/ PSYCHO_IMAP_AU_PLAY,
+/*0x25*/ PSYCHO_IMAP_PFAIL,
+/*0x26*/ PSYCHO_IMAP_KMS,
+/*0x27*/ PSYCHO_IMAP_FLPY,
+/*0x28*/ PSYCHO_IMAP_SHW,
+/*0x29*/ PSYCHO_IMAP_KBD,
+/*0x2a*/ PSYCHO_IMAP_MS,
+/*0x2b*/ PSYCHO_IMAP_SER,
+/*0x2c*/ PSYCHO_IMAP_TIM0,
+/*0x2d*/ PSYCHO_IMAP_TIM1,
+/*0x2e*/ PSYCHO_IMAP_UE,
+/*0x2f*/ PSYCHO_IMAP_CE,
+/*0x30*/ PSYCHO_IMAP_A_ERR,
+/*0x31*/ PSYCHO_IMAP_B_ERR,
+/*0x32*/ PSYCHO_IMAP_PMGMT
+};
+#define PSYCHO_ONBOARD_IRQ_BASE 0x20
+#define PSYCHO_ONBOARD_IRQ_LAST 0x32
+#define psycho_onboard_imap_offset(__ino) \
+ __psycho_onboard_imap_off[(__ino) - PSYCHO_ONBOARD_IRQ_BASE]
+
+#define PSYCHO_ICLR_A_SLOT0 0x1400UL
+#define PSYCHO_ICLR_SCSI 0x1800UL
+
+#define psycho_iclr_offset(ino) \
+ ((ino & 0x20) ? (PSYCHO_ICLR_SCSI + (((ino) & 0x1f) << 3)) : \
+ (PSYCHO_ICLR_A_SLOT0 + (((ino) & 0x1f)<<3)))
+
+static unsigned int psycho_irq_build(struct device_node *dp,
+ unsigned int ino,
+ void *_data)
+{
+ unsigned long controller_regs = (unsigned long) _data;
+ unsigned long imap, iclr;
+ unsigned long imap_off, iclr_off;
+ int inofixup = 0;
+
+ ino &= 0x3f;
+ if (ino < PSYCHO_ONBOARD_IRQ_BASE) {
+ /* PCI slot */
+ imap_off = psycho_pcislot_imap_offset(ino);
+ } else {
+ /* Onboard device */
+ if (ino > PSYCHO_ONBOARD_IRQ_LAST) {
+ prom_printf("psycho_irq_build: Wacky INO [%x]\n", ino);
+ prom_halt();
+ }
+ imap_off = psycho_onboard_imap_offset(ino);
+ }
+
+ /* Now build the IRQ bucket. */
+ imap = controller_regs + imap_off;
+ imap += 4;
+
+ iclr_off = psycho_iclr_offset(ino);
+ iclr = controller_regs + iclr_off;
+ iclr += 4;
+
+ if ((ino & 0x20) == 0)
+ inofixup = ino & 0x03;
+
+ return build_irq(inofixup, iclr, imap);
+}
+
+static void psycho_irq_trans_init(struct device_node *dp)
+{
+ struct linux_prom64_registers *regs;
+
+ dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
+ dp->irq_trans->irq_build = psycho_irq_build;
+
+ regs = of_get_property(dp, "reg", NULL);
+ dp->irq_trans->data = (void *) regs[2].phys_addr;
+}
+
+#define sabre_read(__reg) \
+({ u64 __ret; \
+ __asm__ __volatile__("ldxa [%1] %2, %0" \
+ : "=r" (__ret) \
+ : "r" (__reg), "i" (ASI_PHYS_BYPASS_EC_E) \
+ : "memory"); \
+ __ret; \
+})
+
+struct sabre_irq_data {
+ unsigned long controller_regs;
+ unsigned int pci_first_busno;
+};
+#define SABRE_CONFIGSPACE 0x001000000UL
+#define SABRE_WRSYNC 0x1c20UL
+
+#define SABRE_CONFIG_BASE(CONFIG_SPACE) \
+ (CONFIG_SPACE | (1UL << 24))
+#define SABRE_CONFIG_ENCODE(BUS, DEVFN, REG) \
+ (((unsigned long)(BUS) << 16) | \
+ ((unsigned long)(DEVFN) << 8) | \
+ ((unsigned long)(REG)))
+
+/* When a device lives behind a bridge deeper in the PCI bus topology
+ * than APB, a special sequence must run to make sure all pending DMA
+ * transfers at the time of IRQ delivery are visible in the coherency
+ * domain by the cpu. This sequence is to perform a read on the far
+ * side of the non-APB bridge, then perform a read of Sabre's DMA
+ * write-sync register.
+ */
+static void sabre_wsync_handler(unsigned int ino, void *_arg1, void *_arg2)
+{
+ unsigned int phys_hi = (unsigned int) (unsigned long) _arg1;
+ struct sabre_irq_data *irq_data = _arg2;
+ unsigned long controller_regs = irq_data->controller_regs;
+ unsigned long sync_reg = controller_regs + SABRE_WRSYNC;
+ unsigned long config_space = controller_regs + SABRE_CONFIGSPACE;
+ unsigned int bus, devfn;
+ u16 _unused;
+
+ config_space = SABRE_CONFIG_BASE(config_space);
+
+ bus = (phys_hi >> 16) & 0xff;
+ devfn = (phys_hi >> 8) & 0xff;
+
+ config_space |= SABRE_CONFIG_ENCODE(bus, devfn, 0x00);
+
+ __asm__ __volatile__("membar #Sync\n\t"
+ "lduha [%1] %2, %0\n\t"
+ "membar #Sync"
+ : "=r" (_unused)
+ : "r" ((u16 *) config_space),
+ "i" (ASI_PHYS_BYPASS_EC_E_L)
+ : "memory");
+
+ sabre_read(sync_reg);
+}
+
+#define SABRE_IMAP_A_SLOT0 0x0c00UL
+#define SABRE_IMAP_B_SLOT0 0x0c20UL
+#define SABRE_IMAP_SCSI 0x1000UL
+#define SABRE_IMAP_ETH 0x1008UL
+#define SABRE_IMAP_BPP 0x1010UL
+#define SABRE_IMAP_AU_REC 0x1018UL
+#define SABRE_IMAP_AU_PLAY 0x1020UL
+#define SABRE_IMAP_PFAIL 0x1028UL
+#define SABRE_IMAP_KMS 0x1030UL
+#define SABRE_IMAP_FLPY 0x1038UL
+#define SABRE_IMAP_SHW 0x1040UL
+#define SABRE_IMAP_KBD 0x1048UL
+#define SABRE_IMAP_MS 0x1050UL
+#define SABRE_IMAP_SER 0x1058UL
+#define SABRE_IMAP_UE 0x1070UL
+#define SABRE_IMAP_CE 0x1078UL
+#define SABRE_IMAP_PCIERR 0x1080UL
+#define SABRE_IMAP_GFX 0x1098UL
+#define SABRE_IMAP_EUPA 0x10a0UL
+#define SABRE_ICLR_A_SLOT0 0x1400UL
+#define SABRE_ICLR_B_SLOT0 0x1480UL
+#define SABRE_ICLR_SCSI 0x1800UL
+#define SABRE_ICLR_ETH 0x1808UL
+#define SABRE_ICLR_BPP 0x1810UL
+#define SABRE_ICLR_AU_REC 0x1818UL
+#define SABRE_ICLR_AU_PLAY 0x1820UL
+#define SABRE_ICLR_PFAIL 0x1828UL
+#define SABRE_ICLR_KMS 0x1830UL
+#define SABRE_ICLR_FLPY 0x1838UL
+#define SABRE_ICLR_SHW 0x1840UL
+#define SABRE_ICLR_KBD 0x1848UL
+#define SABRE_ICLR_MS 0x1850UL
+#define SABRE_ICLR_SER 0x1858UL
+#define SABRE_ICLR_UE 0x1870UL
+#define SABRE_ICLR_CE 0x1878UL
+#define SABRE_ICLR_PCIERR 0x1880UL
+
+static unsigned long sabre_pcislot_imap_offset(unsigned long ino)
+{
+ unsigned int bus = (ino & 0x10) >> 4;
+ unsigned int slot = (ino & 0x0c) >> 2;
+
+ if (bus == 0)
+ return SABRE_IMAP_A_SLOT0 + (slot * 8);
+ else
+ return SABRE_IMAP_B_SLOT0 + (slot * 8);
+}
+
+static unsigned long __sabre_onboard_imap_off[] = {
+/*0x20*/ SABRE_IMAP_SCSI,
+/*0x21*/ SABRE_IMAP_ETH,
+/*0x22*/ SABRE_IMAP_BPP,
+/*0x23*/ SABRE_IMAP_AU_REC,
+/*0x24*/ SABRE_IMAP_AU_PLAY,
+/*0x25*/ SABRE_IMAP_PFAIL,
+/*0x26*/ SABRE_IMAP_KMS,
+/*0x27*/ SABRE_IMAP_FLPY,
+/*0x28*/ SABRE_IMAP_SHW,
+/*0x29*/ SABRE_IMAP_KBD,
+/*0x2a*/ SABRE_IMAP_MS,
+/*0x2b*/ SABRE_IMAP_SER,
+/*0x2c*/ 0 /* reserved */,
+/*0x2d*/ 0 /* reserved */,
+/*0x2e*/ SABRE_IMAP_UE,
+/*0x2f*/ SABRE_IMAP_CE,
+/*0x30*/ SABRE_IMAP_PCIERR,
+};
+#define SABRE_ONBOARD_IRQ_BASE 0x20
+#define SABRE_ONBOARD_IRQ_LAST 0x30
+#define sabre_onboard_imap_offset(__ino) \
+ __sabre_onboard_imap_off[(__ino) - SABRE_ONBOARD_IRQ_BASE]
+
+#define sabre_iclr_offset(ino) \
+ ((ino & 0x20) ? (SABRE_ICLR_SCSI + (((ino) & 0x1f) << 3)) : \
+ (SABRE_ICLR_A_SLOT0 + (((ino) & 0x1f)<<3)))
+
+static unsigned int sabre_irq_build(struct device_node *dp,
+ unsigned int ino,
+ void *_data)
+{
+ struct sabre_irq_data *irq_data = _data;
+ unsigned long controller_regs = irq_data->controller_regs;
+ struct linux_prom_pci_registers *regs;
+ unsigned long imap, iclr;
+ unsigned long imap_off, iclr_off;
+ int inofixup = 0;
+ int virt_irq;
+
+ ino &= 0x3f;
+ if (ino < SABRE_ONBOARD_IRQ_BASE) {
+ /* PCI slot */
+ imap_off = sabre_pcislot_imap_offset(ino);
+ } else {
+ /* onboard device */
+ if (ino > SABRE_ONBOARD_IRQ_LAST) {
+ prom_printf("sabre_irq_build: Wacky INO [%x]\n", ino);
+ prom_halt();
+ }
+ imap_off = sabre_onboard_imap_offset(ino);
+ }
+
+ /* Now build the IRQ bucket. */
+ imap = controller_regs + imap_off;
+ imap += 4;
+
+ iclr_off = sabre_iclr_offset(ino);
+ iclr = controller_regs + iclr_off;
+ iclr += 4;
+
+ if ((ino & 0x20) == 0)
+ inofixup = ino & 0x03;
+
+ virt_irq = build_irq(inofixup, iclr, imap);
+
+ regs = of_get_property(dp, "reg", NULL);
+ if (regs &&
+ ((regs->phys_hi >> 16) & 0xff) != irq_data->pci_first_busno) {
+ irq_install_pre_handler(virt_irq,
+ sabre_wsync_handler,
+ (void *) (long) regs->phys_hi,
+ (void *)
+ controller_regs +
+ SABRE_WRSYNC);
+ }
+
+ return virt_irq;
+}
+
+static void sabre_irq_trans_init(struct device_node *dp)
+{
+ struct linux_prom64_registers *regs;
+ struct sabre_irq_data *irq_data;
+ u32 *busrange;
+
+ dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
+ dp->irq_trans->irq_build = sabre_irq_build;
+
+ irq_data = prom_early_alloc(sizeof(struct sabre_irq_data));
+
+ regs = of_get_property(dp, "reg", NULL);
+ irq_data->controller_regs = regs[0].phys_addr;
+
+ busrange = of_get_property(dp, "bus-range", NULL);
+ irq_data->pci_first_busno = busrange[0];
+
+ dp->irq_trans->data = irq_data;
+}
+
+/* SCHIZO interrupt mapping support. Unlike Psycho, for this controller the
+ * imap/iclr registers are per-PBM.
+ */
+#define SCHIZO_IMAP_BASE 0x1000UL
+#define SCHIZO_ICLR_BASE 0x1400UL
+
+static unsigned long schizo_imap_offset(unsigned long ino)
+{
+ return SCHIZO_IMAP_BASE + (ino * 8UL);
+}
+
+static unsigned long schizo_iclr_offset(unsigned long ino)
+{
+ return SCHIZO_ICLR_BASE + (ino * 8UL);
+}
+
+static unsigned long schizo_ino_to_iclr(unsigned long pbm_regs,
+ unsigned int ino)
+{
+ return pbm_regs + schizo_iclr_offset(ino) + 4;
+}
+
+static unsigned long schizo_ino_to_imap(unsigned long pbm_regs,
+ unsigned int ino)
+{
+ return pbm_regs + schizo_imap_offset(ino) + 4;
+}
+
+#define schizo_read(__reg) \
+({ u64 __ret; \
+ __asm__ __volatile__("ldxa [%1] %2, %0" \
+ : "=r" (__ret) \
+ : "r" (__reg), "i" (ASI_PHYS_BYPASS_EC_E) \
+ : "memory"); \
+ __ret; \
+})
+#define schizo_write(__reg, __val) \
+ __asm__ __volatile__("stxa %0, [%1] %2" \
+ : /* no outputs */ \
+ : "r" (__val), "r" (__reg), \
+ "i" (ASI_PHYS_BYPASS_EC_E) \
+ : "memory")
+
+static void tomatillo_wsync_handler(unsigned int ino, void *_arg1, void *_arg2)
+{
+ unsigned long sync_reg = (unsigned long) _arg2;
+ u64 mask = 1UL << (ino & IMAP_INO);
+ u64 val;
+ int limit;
+
+ schizo_write(sync_reg, mask);
+
+ limit = 100000;
+ val = 0;
+ while (--limit) {
+ val = schizo_read(sync_reg);
+ if (!(val & mask))
+ break;
+ }
+ if (limit <= 0) {
+ printk("tomatillo_wsync_handler: DMA won't sync [%lx:%lx]\n",
+ val, mask);
+ }
+
+ if (_arg1) {
+ static unsigned char cacheline[64]
+ __attribute__ ((aligned (64)));
+
+ __asm__ __volatile__("rd %%fprs, %0\n\t"
+ "or %0, %4, %1\n\t"
+ "wr %1, 0x0, %%fprs\n\t"
+ "stda %%f0, [%5] %6\n\t"
+ "wr %0, 0x0, %%fprs\n\t"
+ "membar #Sync"
+ : "=&r" (mask), "=&r" (val)
+ : "0" (mask), "1" (val),
+ "i" (FPRS_FEF), "r" (&cacheline[0]),
+ "i" (ASI_BLK_COMMIT_P));
+ }
+}
+
+struct schizo_irq_data {
+ unsigned long pbm_regs;
+ unsigned long sync_reg;
+ u32 portid;
+ int chip_version;
+};
+
+static unsigned int schizo_irq_build(struct device_node *dp,
+ unsigned int ino,
+ void *_data)
+{
+ struct schizo_irq_data *irq_data = _data;
+ unsigned long pbm_regs = irq_data->pbm_regs;
+ unsigned long imap, iclr;
+ int ign_fixup;
+ int virt_irq;
+ int is_tomatillo;
+
+ ino &= 0x3f;
+
+ /* Now build the IRQ bucket. */
+ imap = schizo_ino_to_imap(pbm_regs, ino);
+ iclr = schizo_ino_to_iclr(pbm_regs, ino);
+
+ /* On Schizo, no inofixup occurs. This is because each
+ * INO has it's own IMAP register. On Psycho and Sabre
+ * there is only one IMAP register for each PCI slot even
+ * though four different INOs can be generated by each
+ * PCI slot.
+ *
+ * But, for JBUS variants (essentially, Tomatillo), we have
+ * to fixup the lowest bit of the interrupt group number.
+ */
+ ign_fixup = 0;
+
+ is_tomatillo = (irq_data->sync_reg != 0UL);
+
+ if (is_tomatillo) {
+ if (irq_data->portid & 1)
+ ign_fixup = (1 << 6);
+ }
+
+ virt_irq = build_irq(ign_fixup, iclr, imap);
+
+ if (is_tomatillo) {
+ irq_install_pre_handler(virt_irq,
+ tomatillo_wsync_handler,
+ ((irq_data->chip_version <= 4) ?
+ (void *) 1 : (void *) 0),
+ (void *) irq_data->sync_reg);
+ }
+
+ return virt_irq;
+}
+
+static void schizo_irq_trans_init(struct device_node *dp)
+{
+ struct linux_prom64_registers *regs;
+ struct schizo_irq_data *irq_data;
+
+ dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
+ dp->irq_trans->irq_build = schizo_irq_build;
+
+ irq_data = prom_early_alloc(sizeof(struct schizo_irq_data));
+
+ regs = of_get_property(dp, "reg", NULL);
+ dp->irq_trans->data = irq_data;
+
+ irq_data->pbm_regs = regs[0].phys_addr;
+ irq_data->sync_reg = regs[3].phys_addr + 0x1a18UL;
+ irq_data->portid = of_getintprop_default(dp, "portid", 0);
+ irq_data->chip_version = of_getintprop_default(dp, "version#", 0);
+}
+
+static unsigned int pci_sun4v_irq_build(struct device_node *dp,
+ unsigned int devino,
+ void *_data)
+{
+ u32 devhandle = (u32) (unsigned long) _data;
+
+ return sun4v_build_irq(devhandle, devino);
+}
+
+static void pci_sun4v_irq_trans_init(struct device_node *dp)
+{
+ struct linux_prom64_registers *regs;
+
+ dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
+ dp->irq_trans->irq_build = pci_sun4v_irq_build;
+
+ regs = of_get_property(dp, "reg", NULL);
+ dp->irq_trans->data = (void *) (unsigned long)
+ ((regs->phys_addr >> 32UL) & 0x0fffffff);
+}
+#endif /* CONFIG_PCI */
+
+#ifdef CONFIG_SBUS
+/* INO number to IMAP register offset for SYSIO external IRQ's.
+ * This should conform to both Sunfire/Wildfire server and Fusion
+ * desktop designs.
+ */
+#define SYSIO_IMAP_SLOT0 0x2c04UL
+#define SYSIO_IMAP_SLOT1 0x2c0cUL
+#define SYSIO_IMAP_SLOT2 0x2c14UL
+#define SYSIO_IMAP_SLOT3 0x2c1cUL
+#define SYSIO_IMAP_SCSI 0x3004UL
+#define SYSIO_IMAP_ETH 0x300cUL
+#define SYSIO_IMAP_BPP 0x3014UL
+#define SYSIO_IMAP_AUDIO 0x301cUL
+#define SYSIO_IMAP_PFAIL 0x3024UL
+#define SYSIO_IMAP_KMS 0x302cUL
+#define SYSIO_IMAP_FLPY 0x3034UL
+#define SYSIO_IMAP_SHW 0x303cUL
+#define SYSIO_IMAP_KBD 0x3044UL
+#define SYSIO_IMAP_MS 0x304cUL
+#define SYSIO_IMAP_SER 0x3054UL
+#define SYSIO_IMAP_TIM0 0x3064UL
+#define SYSIO_IMAP_TIM1 0x306cUL
+#define SYSIO_IMAP_UE 0x3074UL
+#define SYSIO_IMAP_CE 0x307cUL
+#define SYSIO_IMAP_SBERR 0x3084UL
+#define SYSIO_IMAP_PMGMT 0x308cUL
+#define SYSIO_IMAP_GFX 0x3094UL
+#define SYSIO_IMAP_EUPA 0x309cUL
+
+#define bogon ((unsigned long) -1)
+static unsigned long sysio_irq_offsets[] = {
+ /* SBUS Slot 0 --> 3, level 1 --> 7 */
+ SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0,
+ SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0,
+ SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1,
+ SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1,
+ SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2,
+ SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2,
+ SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3,
+ SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3,
+
+ /* Onboard devices (not relevant/used on SunFire). */
+ SYSIO_IMAP_SCSI,
+ SYSIO_IMAP_ETH,
+ SYSIO_IMAP_BPP,
+ bogon,
+ SYSIO_IMAP_AUDIO,
+ SYSIO_IMAP_PFAIL,
+ bogon,
+ bogon,
+ SYSIO_IMAP_KMS,
+ SYSIO_IMAP_FLPY,
+ SYSIO_IMAP_SHW,
+ SYSIO_IMAP_KBD,
+ SYSIO_IMAP_MS,
+ SYSIO_IMAP_SER,
+ bogon,
+ bogon,
+ SYSIO_IMAP_TIM0,
+ SYSIO_IMAP_TIM1,
+ bogon,
+ bogon,
+ SYSIO_IMAP_UE,
+ SYSIO_IMAP_CE,
+ SYSIO_IMAP_SBERR,
+ SYSIO_IMAP_PMGMT,
+};
+
+#undef bogon
+
+#define NUM_SYSIO_OFFSETS ARRAY_SIZE(sysio_irq_offsets)
+
+/* Convert Interrupt Mapping register pointer to associated
+ * Interrupt Clear register pointer, SYSIO specific version.
+ */
+#define SYSIO_ICLR_UNUSED0 0x3400UL
+#define SYSIO_ICLR_SLOT0 0x340cUL
+#define SYSIO_ICLR_SLOT1 0x344cUL
+#define SYSIO_ICLR_SLOT2 0x348cUL
+#define SYSIO_ICLR_SLOT3 0x34ccUL
+static unsigned long sysio_imap_to_iclr(unsigned long imap)
+{
+ unsigned long diff = SYSIO_ICLR_UNUSED0 - SYSIO_IMAP_SLOT0;
+ return imap + diff;
+}
+
+static unsigned int sbus_of_build_irq(struct device_node *dp,
+ unsigned int ino,
+ void *_data)
+{
+ unsigned long reg_base = (unsigned long) _data;
+ struct linux_prom_registers *regs;
+ unsigned long imap, iclr;
+ int sbus_slot = 0;
+ int sbus_level = 0;
+
+ ino &= 0x3f;
+
+ regs = of_get_property(dp, "reg", NULL);
+ if (regs)
+ sbus_slot = regs->which_io;
+
+ if (ino < 0x20)
+ ino += (sbus_slot * 8);
+
+ imap = sysio_irq_offsets[ino];
+ if (imap == ((unsigned long)-1)) {
+ prom_printf("get_irq_translations: Bad SYSIO INO[%x]\n",
+ ino);
+ prom_halt();
+ }
+ imap += reg_base;
+
+ /* SYSIO inconsistency. For external SLOTS, we have to select
+ * the right ICLR register based upon the lower SBUS irq level
+ * bits.
+ */
+ if (ino >= 0x20) {
+ iclr = sysio_imap_to_iclr(imap);
+ } else {
+ sbus_level = ino & 0x7;
+
+ switch(sbus_slot) {
+ case 0:
+ iclr = reg_base + SYSIO_ICLR_SLOT0;
+ break;
+ case 1:
+ iclr = reg_base + SYSIO_ICLR_SLOT1;
+ break;
+ case 2:
+ iclr = reg_base + SYSIO_ICLR_SLOT2;
+ break;
+ default:
+ case 3:
+ iclr = reg_base + SYSIO_ICLR_SLOT3;
+ break;
+ };
+
+ iclr += ((unsigned long)sbus_level - 1UL) * 8UL;
+ }
+ return build_irq(sbus_level, iclr, imap);
+}
+
+static void sbus_irq_trans_init(struct device_node *dp)
+{
+ struct linux_prom64_registers *regs;
+
+ dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
+ dp->irq_trans->irq_build = sbus_of_build_irq;
+
+ regs = of_get_property(dp, "reg", NULL);
+ dp->irq_trans->data = (void *) (unsigned long) regs->phys_addr;
+}
+#endif /* CONFIG_SBUS */
+
+
+static unsigned int central_build_irq(struct device_node *dp,
+ unsigned int ino,
+ void *_data)
+{
+ struct device_node *central_dp = _data;
+ struct of_device *central_op = of_find_device_by_node(central_dp);
+ struct resource *res;
+ unsigned long imap, iclr;
+ u32 tmp;
+
+ if (!strcmp(dp->name, "eeprom")) {
+ res = &central_op->resource[5];
+ } else if (!strcmp(dp->name, "zs")) {
+ res = &central_op->resource[4];
+ } else if (!strcmp(dp->name, "clock-board")) {
+ res = &central_op->resource[3];
+ } else {
+ return ino;
+ }
+
+ imap = res->start + 0x00UL;
+ iclr = res->start + 0x10UL;
+
+ /* Set the INO state to idle, and disable. */
+ upa_writel(0, iclr);
+ upa_readl(iclr);
+
+ tmp = upa_readl(imap);
+ tmp &= ~0x80000000;
+ upa_writel(tmp, imap);
+
+ return build_irq(0, iclr, imap);
+}
+
+static void central_irq_trans_init(struct device_node *dp)
+{
+ dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
+ dp->irq_trans->irq_build = central_build_irq;
+
+ dp->irq_trans->data = dp;
+}
+
+struct irq_trans {
+ const char *name;
+ void (*init)(struct device_node *);
+};
+
+#ifdef CONFIG_PCI
+static struct irq_trans pci_irq_trans_table[] = {
+ { "SUNW,sabre", sabre_irq_trans_init },
+ { "pci108e,a000", sabre_irq_trans_init },
+ { "pci108e,a001", sabre_irq_trans_init },
+ { "SUNW,psycho", psycho_irq_trans_init },
+ { "pci108e,8000", psycho_irq_trans_init },
+ { "SUNW,schizo", schizo_irq_trans_init },
+ { "pci108e,8001", schizo_irq_trans_init },
+ { "SUNW,schizo+", schizo_irq_trans_init },
+ { "pci108e,8002", schizo_irq_trans_init },
+ { "SUNW,tomatillo", schizo_irq_trans_init },
+ { "pci108e,a801", schizo_irq_trans_init },
+ { "SUNW,sun4v-pci", pci_sun4v_irq_trans_init },
+};
+#endif
+
+static void irq_trans_init(struct device_node *dp)
+{
+ const char *model;
+ int i;
+
+ model = of_get_property(dp, "model", NULL);
+ if (!model)
+ model = of_get_property(dp, "compatible", NULL);
+ if (!model)
+ return;
+
+#ifdef CONFIG_PCI
+ for (i = 0; i < ARRAY_SIZE(pci_irq_trans_table); i++) {
+ struct irq_trans *t = &pci_irq_trans_table[i];
+
+ if (!strcmp(model, t->name))
+ return t->init(dp);
+ }
+#endif
+#ifdef CONFIG_SBUS
+ if (!strcmp(dp->name, "sbus") ||
+ !strcmp(dp->name, "sbi"))
+ return sbus_irq_trans_init(dp);
+#endif
+ if (!strcmp(dp->name, "central"))
+ return central_irq_trans_init(dp->child);
+}
+
static int is_root_node(const struct device_node *dp)
{
if (!dp)
@@ -676,10 +1459,10 @@ static struct device_node * __init create_node(phandle node)
dp->type = get_one_property(node, "device_type");
dp->node = node;
- /* Build interrupts later... */
-
dp->properties = build_prop_list(node);
+ irq_trans_init(dp);
+
return dp;
}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-27 16:16:41 +0000