const char *type;
u32 class;
- dev = kzalloc(sizeof(struct pci_dev), GFP_KERNEL);
+ dev = alloc_pci_dev();
if (!dev)
return NULL;
#include <asm/oplib.h>
#include "pci_impl.h"
+#include "pci_sun4v.h"
+
+static int config_out_of_range(struct pci_pbm_info *pbm,
+ unsigned long bus,
+ unsigned long devfn,
+ unsigned long reg)
+{
+ if (bus < pbm->pci_first_busno ||
+ bus > pbm->pci_last_busno)
+ return 1;
+ return 0;
+}
+
+static void *sun4u_config_mkaddr(struct pci_pbm_info *pbm,
+ unsigned long bus,
+ unsigned long devfn,
+ unsigned long reg)
+{
+ unsigned long rbits = pbm->config_space_reg_bits;
+
+ if (config_out_of_range(pbm, bus, devfn, reg))
+ return NULL;
+
+ reg = (reg & ((1 << rbits) - 1));
+ devfn <<= rbits;
+ bus <<= rbits + 8;
+
+ return (void *) (pbm->config_space | bus | devfn | reg);
+}
+
+static int sun4u_read_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
+ int where, int size, u32 *value)
+{
+ struct pci_pbm_info *pbm = bus_dev->sysdata;
+ unsigned char bus = bus_dev->number;
+ u32 *addr;
+ u16 tmp16;
+ u8 tmp8;
+
+ if (bus_dev == pbm->pci_bus && devfn == 0x00)
+ return pci_host_bridge_read_pci_cfg(bus_dev, devfn, where,
+ size, value);
+
+ switch (size) {
+ case 1:
+ *value = 0xff;
+ break;
+ case 2:
+ *value = 0xffff;
+ break;
+ case 4:
+ *value = 0xffffffff;
+ break;
+ }
+
+ addr = sun4u_config_mkaddr(pbm, bus, devfn, where);
+ if (!addr)
+ return PCIBIOS_SUCCESSFUL;
+
+ switch (size) {
+ case 1:
+ pci_config_read8((u8 *)addr, &tmp8);
+ *value = (u32) tmp8;
+ break;
+
+ case 2:
+ if (where & 0x01) {
+ printk("pci_read_config_word: misaligned reg [%x]\n",
+ where);
+ return PCIBIOS_SUCCESSFUL;
+ }
+ pci_config_read16((u16 *)addr, &tmp16);
+ *value = (u32) tmp16;
+ break;
+
+ case 4:
+ if (where & 0x03) {
+ printk("pci_read_config_dword: misaligned reg [%x]\n",
+ where);
+ return PCIBIOS_SUCCESSFUL;
+ }
+ pci_config_read32(addr, value);
+ break;
+ }
+ return PCIBIOS_SUCCESSFUL;
+}
+
+static int sun4u_write_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
+ int where, int size, u32 value)
+{
+ struct pci_pbm_info *pbm = bus_dev->sysdata;
+ unsigned char bus = bus_dev->number;
+ u32 *addr;
+
+ if (bus_dev == pbm->pci_bus && devfn == 0x00)
+ return pci_host_bridge_write_pci_cfg(bus_dev, devfn, where,
+ size, value);
+ addr = sun4u_config_mkaddr(pbm, bus, devfn, where);
+ if (!addr)
+ return PCIBIOS_SUCCESSFUL;
+
+ switch (size) {
+ case 1:
+ pci_config_write8((u8 *)addr, value);
+ break;
+
+ case 2:
+ if (where & 0x01) {
+ printk("pci_write_config_word: misaligned reg [%x]\n",
+ where);
+ return PCIBIOS_SUCCESSFUL;
+ }
+ pci_config_write16((u16 *)addr, value);
+ break;
+
+ case 4:
+ if (where & 0x03) {
+ printk("pci_write_config_dword: misaligned reg [%x]\n",
+ where);
+ return PCIBIOS_SUCCESSFUL;
+ }
+ pci_config_write32(addr, value);
+ }
+ return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_ops sun4u_pci_ops = {
+ .read = sun4u_read_pci_cfg,
+ .write = sun4u_write_pci_cfg,
+};
+
+static int sun4v_read_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
+ int where, int size, u32 *value)
+{
+ struct pci_pbm_info *pbm = bus_dev->sysdata;
+ u32 devhandle = pbm->devhandle;
+ unsigned int bus = bus_dev->number;
+ unsigned int device = PCI_SLOT(devfn);
+ unsigned int func = PCI_FUNC(devfn);
+ unsigned long ret;
+
+ if (bus_dev == pbm->pci_bus && devfn == 0x00)
+ return pci_host_bridge_read_pci_cfg(bus_dev, devfn, where,
+ size, value);
+ if (config_out_of_range(pbm, bus, devfn, where)) {
+ ret = ~0UL;
+ } else {
+ ret = pci_sun4v_config_get(devhandle,
+ HV_PCI_DEVICE_BUILD(bus, device, func),
+ where, size);
+ }
+ switch (size) {
+ case 1:
+ *value = ret & 0xff;
+ break;
+ case 2:
+ *value = ret & 0xffff;
+ break;
+ case 4:
+ *value = ret & 0xffffffff;
+ break;
+ };
+
+
+ return PCIBIOS_SUCCESSFUL;
+}
+
+static int sun4v_write_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
+ int where, int size, u32 value)
+{
+ struct pci_pbm_info *pbm = bus_dev->sysdata;
+ u32 devhandle = pbm->devhandle;
+ unsigned int bus = bus_dev->number;
+ unsigned int device = PCI_SLOT(devfn);
+ unsigned int func = PCI_FUNC(devfn);
+ unsigned long ret;
+
+ if (bus_dev == pbm->pci_bus && devfn == 0x00)
+ return pci_host_bridge_write_pci_cfg(bus_dev, devfn, where,
+ size, value);
+ if (config_out_of_range(pbm, bus, devfn, where)) {
+ /* Do nothing. */
+ } else {
+ ret = pci_sun4v_config_put(devhandle,
+ HV_PCI_DEVICE_BUILD(bus, device, func),
+ where, size, value);
+ }
+ return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_ops sun4v_pci_ops = {
+ .read = sun4v_read_pci_cfg,
+ .write = sun4v_write_pci_cfg,
+};
void pci_get_pbm_props(struct pci_pbm_info *pbm)
{
"i" (ASI_PHYS_BYPASS_EC_E) \
: "memory")
-/* Fire config space address format is nearly identical to
- * that of SCHIZO and PSYCHO, except that in order to accomodate
- * PCI-E extended config space the encoding can handle 12 bits
- * of register address:
- *
- * 32 28 27 20 19 15 14 12 11 2 1 0
- * -------------------------------------------------
- * |0 0 0 0 0| bus | device | function | reg | 0 0 |
- * -------------------------------------------------
- */
-#define FIRE_CONFIG_BASE(PBM) ((PBM)->config_space)
-#define FIRE_CONFIG_ENCODE(BUS, DEVFN, REG) \
- (((unsigned long)(BUS) << 20) | \
- ((unsigned long)(DEVFN) << 12) | \
- ((unsigned long)(REG)))
-
-static void *fire_pci_config_mkaddr(struct pci_pbm_info *pbm,
- unsigned char bus,
- unsigned int devfn,
- int where)
-{
- if (!pbm)
- return NULL;
- return (void *)
- (FIRE_CONFIG_BASE(pbm) |
- FIRE_CONFIG_ENCODE(bus, devfn, where));
-}
-
-/* FIRE PCI configuration space accessors. */
-
-static int fire_read_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
- int where, int size, u32 *value)
-{
- struct pci_pbm_info *pbm = bus_dev->sysdata;
- unsigned char bus = bus_dev->number;
- u32 *addr;
- u16 tmp16;
- u8 tmp8;
-
- if (bus_dev == pbm->pci_bus && devfn == 0x00)
- return pci_host_bridge_read_pci_cfg(bus_dev, devfn, where,
- size, value);
- switch (size) {
- case 1:
- *value = 0xff;
- break;
- case 2:
- *value = 0xffff;
- break;
- case 4:
- *value = 0xffffffff;
- break;
- }
-
- addr = fire_pci_config_mkaddr(pbm, bus, devfn, where);
- if (!addr)
- return PCIBIOS_SUCCESSFUL;
-
- switch (size) {
- case 1:
- pci_config_read8((u8 *)addr, &tmp8);
- *value = tmp8;
- break;
-
- case 2:
- if (where & 0x01) {
- printk("pci_read_config_word: misaligned reg [%x]\n",
- where);
- return PCIBIOS_SUCCESSFUL;
- }
- pci_config_read16((u16 *)addr, &tmp16);
- *value = tmp16;
- break;
-
- case 4:
- if (where & 0x03) {
- printk("pci_read_config_dword: misaligned reg [%x]\n",
- where);
- return PCIBIOS_SUCCESSFUL;
- }
-
- pci_config_read32(addr, value);
- break;
- }
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int fire_write_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
- int where, int size, u32 value)
-{
- struct pci_pbm_info *pbm = bus_dev->sysdata;
- unsigned char bus = bus_dev->number;
- u32 *addr;
-
- if (bus_dev == pbm->pci_bus && devfn == 0x00)
- return pci_host_bridge_write_pci_cfg(bus_dev, devfn, where,
- size, value);
- addr = fire_pci_config_mkaddr(pbm, bus, devfn, where);
- if (!addr)
- return PCIBIOS_SUCCESSFUL;
-
- switch (size) {
- case 1:
- pci_config_write8((u8 *)addr, value);
- break;
-
- case 2:
- if (where & 0x01) {
- printk("pci_write_config_word: misaligned reg [%x]\n",
- where);
- return PCIBIOS_SUCCESSFUL;
- }
- pci_config_write16((u16 *)addr, value);
- break;
-
- case 4:
- if (where & 0x03) {
- printk("pci_write_config_dword: misaligned reg [%x]\n",
- where);
- return PCIBIOS_SUCCESSFUL;
- }
-
- pci_config_write32(addr, value);
- }
- return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops pci_fire_ops = {
- .read = fire_read_pci_cfg,
- .write = fire_write_pci_cfg,
-};
-
static void pci_fire_scan_bus(struct pci_pbm_info *pbm)
{
pbm->pci_bus = pci_scan_one_pbm(pbm);
pci_pbm_root = pbm;
pbm->scan_bus = pci_fire_scan_bus;
- pbm->pci_ops = &pci_fire_ops;
+ pbm->pci_ops = &sun4u_pci_ops;
+ pbm->config_space_reg_bits = 12;
pbm->index = pci_num_pbms++;
/* Base of PCI Config space, can be per-PBM or shared. */
unsigned long config_space;
+ /* This will be 12 on PCI-E controllers, 8 elsewhere. */
+ unsigned long config_space_reg_bits;
+
/* State of 66MHz capabilities on this PBM. */
int is_66mhz_capable;
int all_devs_66mhz;
extern void pci_config_write16(u16 *addr, u16 val);
extern void pci_config_write32(u32 *addr, u32 val);
+extern struct pci_ops sun4u_pci_ops;
+extern struct pci_ops sun4v_pci_ops;
+
#endif /* !(PCI_IMPL_H) */
PSYCHO_CONFIG_ENCODE(bus, devfn, where));
}
-static int psycho_out_of_range(struct pci_pbm_info *pbm,
- unsigned char bus,
- unsigned char devfn)
-{
- return ((bus == pbm->pci_first_busno) &&
- PCI_SLOT(devfn) > 8);
-}
-
-/* PSYCHO PCI configuration space accessors. */
-
-static int psycho_read_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
- int where, int size, u32 *value)
-{
- struct pci_pbm_info *pbm = bus_dev->sysdata;
- unsigned char bus = bus_dev->number;
- u32 *addr;
- u16 tmp16;
- u8 tmp8;
-
- if (bus_dev == pbm->pci_bus && devfn == 0x00)
- return pci_host_bridge_read_pci_cfg(bus_dev, devfn, where,
- size, value);
-
- switch (size) {
- case 1:
- *value = 0xff;
- break;
- case 2:
- *value = 0xffff;
- break;
- case 4:
- *value = 0xffffffff;
- break;
- }
-
- addr = psycho_pci_config_mkaddr(pbm, bus, devfn, where);
- if (!addr)
- return PCIBIOS_SUCCESSFUL;
-
- if (psycho_out_of_range(pbm, bus, devfn))
- return PCIBIOS_SUCCESSFUL;
- switch (size) {
- case 1:
- pci_config_read8((u8 *)addr, &tmp8);
- *value = (u32) tmp8;
- break;
-
- case 2:
- if (where & 0x01) {
- printk("pci_read_config_word: misaligned reg [%x]\n",
- where);
- return PCIBIOS_SUCCESSFUL;
- }
- pci_config_read16((u16 *)addr, &tmp16);
- *value = (u32) tmp16;
- break;
-
- case 4:
- if (where & 0x03) {
- printk("pci_read_config_dword: misaligned reg [%x]\n",
- where);
- return PCIBIOS_SUCCESSFUL;
- }
- pci_config_read32(addr, value);
- break;
- }
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int psycho_write_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
- int where, int size, u32 value)
-{
- struct pci_pbm_info *pbm = bus_dev->sysdata;
- unsigned char bus = bus_dev->number;
- u32 *addr;
-
- if (bus_dev == pbm->pci_bus && devfn == 0x00)
- return pci_host_bridge_write_pci_cfg(bus_dev, devfn, where,
- size, value);
- addr = psycho_pci_config_mkaddr(pbm, bus, devfn, where);
- if (!addr)
- return PCIBIOS_SUCCESSFUL;
-
- if (psycho_out_of_range(pbm, bus, devfn))
- return PCIBIOS_SUCCESSFUL;
-
- switch (size) {
- case 1:
- pci_config_write8((u8 *)addr, value);
- break;
-
- case 2:
- if (where & 0x01) {
- printk("pci_write_config_word: misaligned reg [%x]\n",
- where);
- return PCIBIOS_SUCCESSFUL;
- }
- pci_config_write16((u16 *)addr, value);
- break;
-
- case 4:
- if (where & 0x03) {
- printk("pci_write_config_dword: misaligned reg [%x]\n",
- where);
- return PCIBIOS_SUCCESSFUL;
- }
- pci_config_write32(addr, value);
- }
- return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops psycho_ops = {
- .read = psycho_read_pci_cfg,
- .write = psycho_write_pci_cfg,
-};
-
/* PSYCHO error handling support. */
enum psycho_error_type {
UE_ERR, CE_ERR, PCI_ERR
pci_pbm_root = pbm;
pbm->scan_bus = psycho_scan_bus;
- pbm->pci_ops = &psycho_ops;
+ pbm->pci_ops = &sun4u_pci_ops;
+ pbm->config_space_reg_bits = 8;
pbm->index = pci_num_pbms++;
#define SABRE_MEMSPACE 0x100000000UL
#define SABRE_MEMSPACE_SIZE 0x07fffffffUL
-/* UltraSparc-IIi Programmer's Manual, page 325, PCI
- * configuration space address format:
- *
- * 32 24 23 16 15 11 10 8 7 2 1 0
- * ---------------------------------------------------------
- * |0 0 0 0 0 0 0 0 1| bus | device | function | reg | 0 0 |
- * ---------------------------------------------------------
- */
-#define SABRE_CONFIG_BASE(PBM) \
- ((PBM)->config_space | (1UL << 24))
-#define SABRE_CONFIG_ENCODE(BUS, DEVFN, REG) \
- (((unsigned long)(BUS) << 16) | \
- ((unsigned long)(DEVFN) << 8) | \
- ((unsigned long)(REG)))
-
static int hummingbird_p;
static struct pci_bus *sabre_root_bus;
-static void *sabre_pci_config_mkaddr(struct pci_pbm_info *pbm,
- unsigned char bus,
- unsigned int devfn,
- int where)
-{
- if (!pbm)
- return NULL;
- return (void *)
- (SABRE_CONFIG_BASE(pbm) |
- SABRE_CONFIG_ENCODE(bus, devfn, where));
-}
-
-static int sabre_out_of_range(unsigned char devfn)
-{
- if (hummingbird_p)
- return 0;
-
- return (((PCI_SLOT(devfn) == 0) && (PCI_FUNC(devfn) > 0)) ||
- ((PCI_SLOT(devfn) == 1) && (PCI_FUNC(devfn) > 1)) ||
- (PCI_SLOT(devfn) > 1));
-}
-
-static int __sabre_out_of_range(struct pci_pbm_info *pbm,
- unsigned char bus,
- unsigned char devfn)
-{
- if (hummingbird_p)
- return 0;
-
- return ((pbm->parent == 0) ||
- ((pbm == &pbm->parent->pbm_A) &&
- (bus == pbm->pci_first_busno) &&
- PCI_SLOT(devfn) > 8));
-}
-
-static int __sabre_read_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
- int where, int size, u32 *value)
-{
- struct pci_pbm_info *pbm = bus_dev->sysdata;
- unsigned char bus = bus_dev->number;
- u32 *addr;
- u16 tmp16;
- u8 tmp8;
-
- switch (size) {
- case 1:
- *value = 0xff;
- break;
- case 2:
- *value = 0xffff;
- break;
- case 4:
- *value = 0xffffffff;
- break;
- }
-
- addr = sabre_pci_config_mkaddr(pbm, bus, devfn, where);
- if (!addr)
- return PCIBIOS_SUCCESSFUL;
-
- if (__sabre_out_of_range(pbm, bus, devfn))
- return PCIBIOS_SUCCESSFUL;
-
- switch (size) {
- case 1:
- pci_config_read8((u8 *) addr, &tmp8);
- *value = tmp8;
- break;
-
- case 2:
- if (where & 0x01) {
- printk("pci_read_config_word: misaligned reg [%x]\n",
- where);
- return PCIBIOS_SUCCESSFUL;
- }
- pci_config_read16((u16 *) addr, &tmp16);
- *value = tmp16;
- break;
-
- case 4:
- if (where & 0x03) {
- printk("pci_read_config_dword: misaligned reg [%x]\n",
- where);
- return PCIBIOS_SUCCESSFUL;
- }
- pci_config_read32(addr, value);
- break;
- }
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int sabre_read_pci_cfg(struct pci_bus *bus, unsigned int devfn,
- int where, int size, u32 *value)
-{
- struct pci_pbm_info *pbm = bus->sysdata;
-
- if (bus == pbm->pci_bus && devfn == 0x00)
- return pci_host_bridge_read_pci_cfg(bus, devfn, where,
- size, value);
-
- if (!bus->number && sabre_out_of_range(devfn)) {
- switch (size) {
- case 1:
- *value = 0xff;
- break;
- case 2:
- *value = 0xffff;
- break;
- case 4:
- *value = 0xffffffff;
- break;
- }
- return PCIBIOS_SUCCESSFUL;
- }
-
- if (bus->number || PCI_SLOT(devfn))
- return __sabre_read_pci_cfg(bus, devfn, where, size, value);
-
- /* When accessing PCI config space of the PCI controller itself (bus
- * 0, device slot 0, function 0) there are restrictions. Each
- * register must be accessed as it's natural size. Thus, for example
- * the Vendor ID must be accessed as a 16-bit quantity.
- */
-
- switch (size) {
- case 1:
- if (where < 8) {
- u32 tmp32;
- u16 tmp16;
-
- __sabre_read_pci_cfg(bus, devfn, where & ~1, 2, &tmp32);
- tmp16 = (u16) tmp32;
- if (where & 1)
- *value = tmp16 >> 8;
- else
- *value = tmp16 & 0xff;
- } else
- return __sabre_read_pci_cfg(bus, devfn, where, 1, value);
- break;
-
- case 2:
- if (where < 8)
- return __sabre_read_pci_cfg(bus, devfn, where, 2, value);
- else {
- u32 tmp32;
- u8 tmp8;
-
- __sabre_read_pci_cfg(bus, devfn, where, 1, &tmp32);
- tmp8 = (u8) tmp32;
- *value = tmp8;
- __sabre_read_pci_cfg(bus, devfn, where + 1, 1, &tmp32);
- tmp8 = (u8) tmp32;
- *value |= tmp8 << 8;
- }
- break;
-
- case 4: {
- u32 tmp32;
- u16 tmp16;
-
- sabre_read_pci_cfg(bus, devfn, where, 2, &tmp32);
- tmp16 = (u16) tmp32;
- *value = tmp16;
- sabre_read_pci_cfg(bus, devfn, where + 2, 2, &tmp32);
- tmp16 = (u16) tmp32;
- *value |= tmp16 << 16;
- break;
- }
- }
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int __sabre_write_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
- int where, int size, u32 value)
-{
- struct pci_pbm_info *pbm = bus_dev->sysdata;
- unsigned char bus = bus_dev->number;
- u32 *addr;
-
- addr = sabre_pci_config_mkaddr(pbm, bus, devfn, where);
- if (!addr)
- return PCIBIOS_SUCCESSFUL;
-
- if (__sabre_out_of_range(pbm, bus, devfn))
- return PCIBIOS_SUCCESSFUL;
-
- switch (size) {
- case 1:
- pci_config_write8((u8 *) addr, value);
- break;
-
- case 2:
- if (where & 0x01) {
- printk("pci_write_config_word: misaligned reg [%x]\n",
- where);
- return PCIBIOS_SUCCESSFUL;
- }
- pci_config_write16((u16 *) addr, value);
- break;
-
- case 4:
- if (where & 0x03) {
- printk("pci_write_config_dword: misaligned reg [%x]\n",
- where);
- return PCIBIOS_SUCCESSFUL;
- }
- pci_config_write32(addr, value);
- break;
- }
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int sabre_write_pci_cfg(struct pci_bus *bus, unsigned int devfn,
- int where, int size, u32 value)
-{
- struct pci_pbm_info *pbm = bus->sysdata;
-
- if (bus == pbm->pci_bus && devfn == 0x00)
- return pci_host_bridge_write_pci_cfg(bus, devfn, where,
- size, value);
-
- if (bus->number)
- return __sabre_write_pci_cfg(bus, devfn, where, size, value);
-
- if (sabre_out_of_range(devfn))
- return PCIBIOS_SUCCESSFUL;
-
- switch (size) {
- case 1:
- if (where < 8) {
- u32 tmp32;
- u16 tmp16;
-
- __sabre_read_pci_cfg(bus, devfn, where & ~1, 2, &tmp32);
- tmp16 = (u16) tmp32;
- if (where & 1) {
- value &= 0x00ff;
- value |= tmp16 << 8;
- } else {
- value &= 0xff00;
- value |= tmp16;
- }
- tmp32 = (u32) tmp16;
- return __sabre_write_pci_cfg(bus, devfn, where & ~1, 2, tmp32);
- } else
- return __sabre_write_pci_cfg(bus, devfn, where, 1, value);
- break;
- case 2:
- if (where < 8)
- return __sabre_write_pci_cfg(bus, devfn, where, 2, value);
- else {
- __sabre_write_pci_cfg(bus, devfn, where, 1, value & 0xff);
- __sabre_write_pci_cfg(bus, devfn, where + 1, 1, value >> 8);
- }
- break;
- case 4:
- sabre_write_pci_cfg(bus, devfn, where, 2, value & 0xffff);
- sabre_write_pci_cfg(bus, devfn, where + 2, 2, value >> 16);
- break;
- }
- return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops sabre_ops = {
- .read = sabre_read_pci_cfg,
- .write = sabre_write_pci_cfg,
-};
-
/* SABRE error handling support. */
static void sabre_check_iommu_error(struct pci_pbm_info *pbm,
unsigned long afsr,
printk("%s: SABRE PCI Bus Module\n", pbm->name);
pbm->scan_bus = sabre_scan_bus;
- pbm->pci_ops = &sabre_ops;
+ pbm->pci_ops = &sun4u_pci_ops;
+ pbm->config_space_reg_bits = 8;
pbm->index = pci_num_pbms++;
SCHIZO_CONFIG_ENCODE(bus, devfn, where));
}
-/* Just make sure the bus number is in range. */
-static int schizo_out_of_range(struct pci_pbm_info *pbm,
- unsigned char bus,
- unsigned char devfn)
-{
- if (bus < pbm->pci_first_busno ||
- bus > pbm->pci_last_busno)
- return 1;
- return 0;
-}
-
-/* SCHIZO PCI configuration space accessors. */
-
-static int schizo_read_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
- int where, int size, u32 *value)
-{
- struct pci_pbm_info *pbm = bus_dev->sysdata;
- unsigned char bus = bus_dev->number;
- u32 *addr;
- u16 tmp16;
- u8 tmp8;
-
- if (bus_dev == pbm->pci_bus && devfn == 0x00)
- return pci_host_bridge_read_pci_cfg(bus_dev, devfn, where,
- size, value);
- switch (size) {
- case 1:
- *value = 0xff;
- break;
- case 2:
- *value = 0xffff;
- break;
- case 4:
- *value = 0xffffffff;
- break;
- }
-
- addr = schizo_pci_config_mkaddr(pbm, bus, devfn, where);
- if (!addr)
- return PCIBIOS_SUCCESSFUL;
-
- if (schizo_out_of_range(pbm, bus, devfn))
- return PCIBIOS_SUCCESSFUL;
- switch (size) {
- case 1:
- pci_config_read8((u8 *)addr, &tmp8);
- *value = tmp8;
- break;
-
- case 2:
- if (where & 0x01) {
- printk("pci_read_config_word: misaligned reg [%x]\n",
- where);
- return PCIBIOS_SUCCESSFUL;
- }
- pci_config_read16((u16 *)addr, &tmp16);
- *value = tmp16;
- break;
-
- case 4:
- if (where & 0x03) {
- printk("pci_read_config_dword: misaligned reg [%x]\n",
- where);
- return PCIBIOS_SUCCESSFUL;
- }
- pci_config_read32(addr, value);
- break;
- }
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int schizo_write_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
- int where, int size, u32 value)
-{
- struct pci_pbm_info *pbm = bus_dev->sysdata;
- unsigned char bus = bus_dev->number;
- u32 *addr;
-
- if (bus_dev == pbm->pci_bus && devfn == 0x00)
- return pci_host_bridge_write_pci_cfg(bus_dev, devfn, where,
- size, value);
- addr = schizo_pci_config_mkaddr(pbm, bus, devfn, where);
- if (!addr)
- return PCIBIOS_SUCCESSFUL;
-
- if (schizo_out_of_range(pbm, bus, devfn))
- return PCIBIOS_SUCCESSFUL;
-
- switch (size) {
- case 1:
- pci_config_write8((u8 *)addr, value);
- break;
-
- case 2:
- if (where & 0x01) {
- printk("pci_write_config_word: misaligned reg [%x]\n",
- where);
- return PCIBIOS_SUCCESSFUL;
- }
- pci_config_write16((u16 *)addr, value);
- break;
-
- case 4:
- if (where & 0x03) {
- printk("pci_write_config_dword: misaligned reg [%x]\n",
- where);
- return PCIBIOS_SUCCESSFUL;
- }
-
- pci_config_write32(addr, value);
- }
- return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops schizo_ops = {
- .read = schizo_read_pci_cfg,
- .write = schizo_write_pci_cfg,
-};
-
/* SCHIZO error handling support. */
enum schizo_error_type {
UE_ERR, CE_ERR, PCI_ERR, SAFARI_ERR
pci_pbm_root = pbm;
pbm->scan_bus = schizo_scan_bus;
- pbm->pci_ops = &schizo_ops;
+ pbm->pci_ops = &sun4u_pci_ops;
+ pbm->config_space_reg_bits = 8;
pbm->index = pci_num_pbms++;
.dma_sync_sg_for_cpu = pci_4v_dma_sync_sg_for_cpu,
};
-static inline int pci_sun4v_out_of_range(struct pci_pbm_info *pbm, unsigned int bus, unsigned int device, unsigned int func)
-{
- if (bus < pbm->pci_first_busno ||
- bus > pbm->pci_last_busno)
- return 1;
- return 0;
-}
-
-static int pci_sun4v_read_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
- int where, int size, u32 *value)
-{
- struct pci_pbm_info *pbm = bus_dev->sysdata;
- u32 devhandle = pbm->devhandle;
- unsigned int bus = bus_dev->number;
- unsigned int device = PCI_SLOT(devfn);
- unsigned int func = PCI_FUNC(devfn);
- unsigned long ret;
-
- if (bus_dev == pbm->pci_bus && devfn == 0x00)
- return pci_host_bridge_read_pci_cfg(bus_dev, devfn, where,
- size, value);
- if (pci_sun4v_out_of_range(pbm, bus, device, func)) {
- ret = ~0UL;
- } else {
- ret = pci_sun4v_config_get(devhandle,
- HV_PCI_DEVICE_BUILD(bus, device, func),
- where, size);
-#if 0
- printk("rcfg: [%x:%x:%x:%d]=[%lx]\n",
- devhandle, HV_PCI_DEVICE_BUILD(bus, device, func),
- where, size, ret);
-#endif
- }
- switch (size) {
- case 1:
- *value = ret & 0xff;
- break;
- case 2:
- *value = ret & 0xffff;
- break;
- case 4:
- *value = ret & 0xffffffff;
- break;
- };
-
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int pci_sun4v_write_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
- int where, int size, u32 value)
-{
- struct pci_pbm_info *pbm = bus_dev->sysdata;
- u32 devhandle = pbm->devhandle;
- unsigned int bus = bus_dev->number;
- unsigned int device = PCI_SLOT(devfn);
- unsigned int func = PCI_FUNC(devfn);
- unsigned long ret;
-
- if (bus_dev == pbm->pci_bus && devfn == 0x00)
- return pci_host_bridge_write_pci_cfg(bus_dev, devfn, where,
- size, value);
- if (pci_sun4v_out_of_range(pbm, bus, device, func)) {
- /* Do nothing. */
- } else {
- ret = pci_sun4v_config_put(devhandle,
- HV_PCI_DEVICE_BUILD(bus, device, func),
- where, size, value);
-#if 0
- printk("wcfg: [%x:%x:%x:%d] v[%x] == [%lx]\n",
- devhandle, HV_PCI_DEVICE_BUILD(bus, device, func),
- where, size, value, ret);
-#endif
- }
- return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops pci_sun4v_ops = {
- .read = pci_sun4v_read_pci_cfg,
- .write = pci_sun4v_write_pci_cfg,
-};
-
-
static void pci_sun4v_scan_bus(struct pci_pbm_info *pbm)
{
struct property *prop;
pci_pbm_root = pbm;
pbm->scan_bus = pci_sun4v_scan_bus;
- pbm->pci_ops = &pci_sun4v_ops;
+ pbm->pci_ops = &sun4v_pci_ops;
+ pbm->config_space_reg_bits = 12;
pbm->index = pci_num_pbms++;
static struct device_node * __init build_tree(struct device_node *parent, phandle node, struct device_node ***nextp)
{
+ struct device_node *ret = NULL, *prev_sibling = NULL;
struct device_node *dp;
- dp = create_node(node, parent);
- if (dp) {
+ while (1) {
+ dp = create_node(node, parent);
+ if (!dp)
+ break;
+
+ if (prev_sibling)
+ prev_sibling->sibling = dp;
+
+ if (!ret)
+ ret = dp;
+ prev_sibling = dp;
+
*(*nextp) = dp;
*nextp = &dp->allnext;
dp->child = build_tree(dp, prom_getchild(node), nextp);
- dp->sibling = build_tree(parent, prom_getsibling(node), nextp);
+ node = prom_getsibling(node);
}
- return dp;
+ return ret;
}
void __init prom_build_devicetree(void)
#define SUNZILOG_FLAG_REGS_HELD 0x00000040
#define SUNZILOG_FLAG_TX_STOPPED 0x00000080
#define SUNZILOG_FLAG_TX_ACTIVE 0x00000100
+#define SUNZILOG_FLAG_ESCC 0x00000200
+#define SUNZILOG_FLAG_ISR_HANDLER 0x00000400
unsigned int cflag;
/* This function must only be called when the TX is not busy. The UART
* port lock must be held and local interrupts disabled.
*/
-static void __load_zsregs(struct zilog_channel __iomem *channel, unsigned char *regs)
+static int __load_zsregs(struct zilog_channel __iomem *channel, unsigned char *regs)
{
int i;
+ int escc;
+ unsigned char r15;
/* Let pending transmits finish. */
for (i = 0; i < 1000; i++) {
write_zsreg(channel, R14, regs[R14]);
/* External status interrupt control. */
- write_zsreg(channel, R15, regs[R15]);
+ write_zsreg(channel, R15, (regs[R15] | WR7pEN) & ~FIFOEN);
+
+ /* ESCC Extension Register */
+ r15 = read_zsreg(channel, R15);
+ if (r15 & 0x01) {
+ write_zsreg(channel, R7, regs[R7p]);
+
+ /* External status interrupt and FIFO control. */
+ write_zsreg(channel, R15, regs[R15] & ~WR7pEN);
+ escc = 1;
+ } else {
+ /* Clear FIFO bit case it is an issue */
+ regs[R15] &= ~FIFOEN;
+ escc = 0;
+ }
/* Reset external status interrupts. */
- write_zsreg(channel, R0, RES_EXT_INT);
- write_zsreg(channel, R0, RES_EXT_INT);
+ write_zsreg(channel, R0, RES_EXT_INT); /* First Latch */
+ write_zsreg(channel, R0, RES_EXT_INT); /* Second Latch */
/* Rewrite R3/R5, this time without enables masked. */
write_zsreg(channel, R3, regs[R3]);
/* Rewrite R1, this time without IRQ enabled masked. */
write_zsreg(channel, R1, regs[R1]);
+
+ return escc;
}
/* Reprogram the Zilog channel HW registers with the copies found in the
up->curregs[R15] = new_reg;
/* NOTE: Not subject to 'transmitter active' rule. */
- write_zsreg(channel, R15, up->curregs[R15]);
+ write_zsreg(channel, R15, up->curregs[R15] & ~WR7pEN);
}
}
up->curregs[R14] = BRSRC | BRENAB;
/* Character size, stop bits, and parity. */
- up->curregs[3] &= ~RxN_MASK;
- up->curregs[5] &= ~TxN_MASK;
+ up->curregs[R3] &= ~RxN_MASK;
+ up->curregs[R5] &= ~TxN_MASK;
switch (cflag & CSIZE) {
case CS5:
- up->curregs[3] |= Rx5;
- up->curregs[5] |= Tx5;
+ up->curregs[R3] |= Rx5;
+ up->curregs[R5] |= Tx5;
up->parity_mask = 0x1f;
break;
case CS6:
- up->curregs[3] |= Rx6;
- up->curregs[5] |= Tx6;
+ up->curregs[R3] |= Rx6;
+ up->curregs[R5] |= Tx6;
up->parity_mask = 0x3f;
break;
case CS7:
- up->curregs[3] |= Rx7;
- up->curregs[5] |= Tx7;
+ up->curregs[R3] |= Rx7;
+ up->curregs[R5] |= Tx7;
up->parity_mask = 0x7f;
break;
case CS8:
default:
- up->curregs[3] |= Rx8;
- up->curregs[5] |= Tx8;
+ up->curregs[R3] |= Rx8;
+ up->curregs[R5] |= Tx8;
up->parity_mask = 0xff;
break;
};
- up->curregs[4] &= ~0x0c;
+ up->curregs[R4] &= ~0x0c;
if (cflag & CSTOPB)
- up->curregs[4] |= SB2;
+ up->curregs[R4] |= SB2;
else
- up->curregs[4] |= SB1;
+ up->curregs[R4] |= SB1;
if (cflag & PARENB)
- up->curregs[4] |= PAR_ENAB;
+ up->curregs[R4] |= PAR_ENAB;
else
- up->curregs[4] &= ~PAR_ENAB;
+ up->curregs[R4] &= ~PAR_ENAB;
if (!(cflag & PARODD))
- up->curregs[4] |= PAR_EVEN;
+ up->curregs[R4] |= PAR_EVEN;
else
- up->curregs[4] &= ~PAR_EVEN;
+ up->curregs[R4] &= ~PAR_EVEN;
up->port.read_status_mask = Rx_OVR;
if (iflag & INPCK)
static const char *sunzilog_type(struct uart_port *port)
{
- return "zs";
+ struct uart_sunzilog_port *up = UART_ZILOG(port);
+
+ return (up->flags & SUNZILOG_FLAG_ESCC) ? "zs (ESCC)" : "zs";
}
/* We do not request/release mappings of the registers here, this
spin_lock_irqsave(&up->port.lock, flags);
- up->curregs[R15] = BRKIE;
+ up->curregs[R15] |= BRKIE;
sunzilog_convert_to_zs(up, con->cflag, 0, brg);
sunzilog_set_mctrl(&up->port, TIOCM_DTR | TIOCM_RTS);
baud = 4800;
}
- up->curregs[R15] = BRKIE;
+ up->curregs[R15] |= BRKIE;
brg = BPS_TO_BRG(baud, ZS_CLOCK / ZS_CLOCK_DIVISOR);
sunzilog_convert_to_zs(up, up->cflag, 0, brg);
sunzilog_set_mctrl(&up->port, TIOCM_DTR | TIOCM_RTS);
if (up->flags & (SUNZILOG_FLAG_CONS_KEYB |
SUNZILOG_FLAG_CONS_MOUSE)) {
+ up->curregs[R1] = EXT_INT_ENAB | INT_ALL_Rx | TxINT_ENAB;
+ up->curregs[R4] = PAR_EVEN | X16CLK | SB1;
+ up->curregs[R3] = RxENAB | Rx8;
+ up->curregs[R5] = TxENAB | Tx8;
+ up->curregs[R6] = 0x00; /* SDLC Address */
+ up->curregs[R7] = 0x7E; /* SDLC Flag */
+ up->curregs[R9] = NV;
+ up->curregs[R7p] = 0x00;
sunzilog_init_kbdms(up, up->port.line);
- up->curregs[R9] |= (NV | MIE);
+ /* Only enable interrupts if an ISR handler available */
+ if (up->flags & SUNZILOG_FLAG_ISR_HANDLER)
+ up->curregs[R9] |= MIE;
write_zsreg(channel, R9, up->curregs[R9]);
} else {
/* Normal serial TTY. */
up->curregs[R4] = PAR_EVEN | X16CLK | SB1;
up->curregs[R3] = RxENAB | Rx8;
up->curregs[R5] = TxENAB | Tx8;
- up->curregs[R9] = NV | MIE;
+ up->curregs[R6] = 0x00; /* SDLC Address */
+ up->curregs[R7] = 0x7E; /* SDLC Flag */
+ up->curregs[R9] = NV;
up->curregs[R10] = NRZ;
up->curregs[R11] = TCBR | RCBR;
baud = 9600;
up->curregs[R12] = (brg & 0xff);
up->curregs[R13] = (brg >> 8) & 0xff;
up->curregs[R14] = BRSRC | BRENAB;
- __load_zsregs(channel, up->curregs);
+ up->curregs[R15] = FIFOEN; /* Use FIFO if on ESCC */
+ up->curregs[R7p] = TxFIFO_LVL | RxFIFO_LVL;
+ if (__load_zsregs(channel, up->curregs)) {
+ up->flags |= SUNZILOG_FLAG_ESCC;
+ }
+ /* Only enable interrupts if an ISR handler available */
+ if (up->flags & SUNZILOG_FLAG_ISR_HANDLER)
+ up->curregs[R9] |= MIE;
write_zsreg(channel, R9, up->curregs[R9]);
}
return err;
}
} else {
- printk(KERN_INFO "%s: Keyboard at MMIO %lx (irq = %d) "
- "is a zs\n",
- op->dev.bus_id, up[0].port.mapbase, op->irqs[0]);
- printk(KERN_INFO "%s: Mouse at MMIO %lx (irq = %d) "
- "is a zs\n",
- op->dev.bus_id, up[1].port.mapbase, op->irqs[0]);
+ printk(KERN_INFO "%s: Keyboard at MMIO 0x%lx (irq = %d) "
+ "is a %s\n",
+ op->dev.bus_id, up[0].port.mapbase, op->irqs[0],
+ sunzilog_type (&up[0].port));
+ printk(KERN_INFO "%s: Mouse at MMIO 0x%lx (irq = %d) "
+ "is a %s\n",
+ op->dev.bus_id, up[1].port.mapbase, op->irqs[0],
+ sunzilog_type (&up[1].port));
}
dev_set_drvdata(&op->dev, &up[0]);
goto out_unregister_uart;
if (zilog_irq != -1) {
+ struct uart_sunzilog_port *up = sunzilog_irq_chain;
err = request_irq(zilog_irq, sunzilog_interrupt, IRQF_SHARED,
"zs", sunzilog_irq_chain);
if (err)
goto out_unregister_driver;
+
+ /* Enable Interrupts */
+ while (up) {
+ struct zilog_channel __iomem *channel;
+
+ /* printk (KERN_INFO "Enable IRQ for ZILOG Hardware %p\n", up); */
+ channel = ZILOG_CHANNEL_FROM_PORT(&up->port);
+ up->flags |= SUNZILOG_FLAG_ISR_HANDLER;
+ up->curregs[R9] |= MIE;
+ write_zsreg(channel, R9, up->curregs[R9]);
+ up = up->next;
+ }
}
out:
of_unregister_driver(&zs_driver);
if (zilog_irq != -1) {
+ struct uart_sunzilog_port *up = sunzilog_irq_chain;
+
+ /* Disable Interrupts */
+ while (up) {
+ struct zilog_channel __iomem *channel;
+
+ /* printk (KERN_INFO "Disable IRQ for ZILOG Hardware %p\n", up); */
+ channel = ZILOG_CHANNEL_FROM_PORT(&up->port);
+ up->flags &= ~SUNZILOG_FLAG_ISR_HANDLER;
+ up->curregs[R9] &= ~MIE;
+ write_zsreg(channel, R9, up->curregs[R9]);
+ up = up->next;
+ }
+
free_irq(zilog_irq, sunzilog_irq_chain);
zilog_irq = -1;
}
struct zilog_channel channelA;
};
-#define NUM_ZSREGS 16
+#define NUM_ZSREGS 17
+#define R7p 16 /* Written as R7 with P15 bit 0 set */
/* Conversion routines to/from brg time constants from/to bits
* per second.
/* Write Register 7 (Sync bits 8-15/SDLC 01111110) */
+/* Write Register 7' (ESCC Only) */
+#define AUTO_TxFLAG 1 /* Automatic Tx SDLC Flag */
+#define AUTO_EOM_RST 2 /* Automatic EOM Reset */
+#define AUTOnRTS 4 /* Automatic /RTS pin deactivation */
+#define RxFIFO_LVL 8 /* Receive FIFO interrupt level */
+#define nDTRnREQ 0x10 /* /DTR/REQ timing */
+#define TxFIFO_LVL 0x20 /* Transmit FIFO interrupt level */
+#define EXT_RD_EN 0x40 /* Extended read register enable */
+
/* Write Register 8 (transmit buffer) */
/* Write Register 9 (Master interrupt control) */
#define DLC 4 /* Disable Lower Chain */
#define MIE 8 /* Master Interrupt Enable */
#define STATHI 0x10 /* Status high */
+#define SWIACK 0x20 /* Software Interrupt Ack (not on NMOS) */
#define NORESET 0 /* No reset on write to R9 */
#define CHRB 0x40 /* Reset channel B */
#define CHRA 0x80 /* Reset channel A */
#define SNRZI 0xe0 /* Set NRZI mode */
/* Write Register 15 (external/status interrupt control) */
+#define WR7pEN 1 /* WR7' Enable (ESCC only) */
#define ZCIE 2 /* Zero count IE */
+#define FIFOEN 4 /* FIFO Enable (ESCC only) */
#define DCDIE 8 /* DCD IE */
#define SYNCIE 0x10 /* Sync/hunt IE */
#define CTSIE 0x20 /* CTS IE */
#define CHATxIP 0x10 /* Channel A Tx IP */
#define CHARxIP 0x20 /* Channel A Rx IP */
+/* Read Register 6 (LSB frame byte count [Not on NMOS]) */
+
+/* Read Register 7 (MSB frame byte count and FIFO status [Not on NMOS]) */
+
/* Read Register 8 (receive data register) */
/* Read Register 10 (misc status bits) */
/* More fun PROM structures for device probing. */
#define PROMREG_MAX 24
#define PROMVADDR_MAX 16
-#define PROMINTR_MAX 15
+#define PROMINTR_MAX 32
struct linux_prom_registers {
unsigned which_io; /* hi part of physical address */
projects / linux-2.6-omap-h63xx.git / commitdiff