提交 cecc4e92 编写于 作者: D David S. Miller

[SPARC64]: Convert central bus layer to in-kernel PROM device tree.

Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 9c10a58e
......@@ -29,28 +29,34 @@ static void central_probe_failure(int line)
prom_halt();
}
static void central_ranges_init(int cnode, struct linux_central *central)
static void central_ranges_init(struct linux_central *central)
{
int success;
struct device_node *dp = central->prom_node;
void *pval;
int len;
central->num_central_ranges = 0;
success = prom_getproperty(central->prom_node, "ranges",
(char *) central->central_ranges,
sizeof (central->central_ranges));
if (success != -1)
central->num_central_ranges = (success/sizeof(struct linux_prom_ranges));
pval = of_get_property(dp, "ranges", &len);
if (pval) {
memcpy(central->central_ranges, pval, len);
central->num_central_ranges =
(len / sizeof(struct linux_prom_ranges));
}
}
static void fhc_ranges_init(int fnode, struct linux_fhc *fhc)
static void fhc_ranges_init(struct linux_fhc *fhc)
{
int success;
struct device_node *dp = fhc->prom_node;
void *pval;
int len;
fhc->num_fhc_ranges = 0;
success = prom_getproperty(fhc->prom_node, "ranges",
(char *) fhc->fhc_ranges,
sizeof (fhc->fhc_ranges));
if (success != -1)
fhc->num_fhc_ranges = (success/sizeof(struct linux_prom_ranges));
pval = of_get_property(dp, "ranges", &len);
if (pval) {
memcpy(fhc->fhc_ranges, pval, len);
fhc->num_fhc_ranges =
(len / sizeof(struct linux_prom_ranges));
}
}
/* Range application routines are exported to various drivers,
......@@ -112,15 +118,10 @@ static unsigned long prom_reg_to_paddr(struct linux_prom_registers *r)
static void probe_other_fhcs(void)
{
struct linux_prom64_registers fpregs[6];
char namebuf[128];
int node;
struct device_node *dp;
struct linux_prom64_registers *fpregs;
node = prom_getchild(prom_root_node);
node = prom_searchsiblings(node, "fhc");
if (node == 0)
central_probe_failure(__LINE__);
while (node) {
for_each_node_by_name(dp, "fhc") {
struct linux_fhc *fhc;
int board;
u32 tmp;
......@@ -137,14 +138,12 @@ static void probe_other_fhcs(void)
/* Toplevel FHCs have no parent. */
fhc->parent = NULL;
fhc->prom_node = node;
prom_getstring(node, "name", namebuf, sizeof(namebuf));
strcpy(fhc->prom_name, namebuf);
fhc_ranges_init(node, fhc);
fhc->prom_node = dp;
fhc_ranges_init(fhc);
/* Non-central FHC's have 64-bit OBP format registers. */
if (prom_getproperty(node, "reg",
(char *)&fpregs[0], sizeof(fpregs)) == -1)
fpregs = of_get_property(dp, "reg", NULL);
if (!fpregs)
central_probe_failure(__LINE__);
/* Only central FHC needs special ranges applied. */
......@@ -155,7 +154,7 @@ static void probe_other_fhcs(void)
fhc->fhc_regs.uregs = fpregs[4].phys_addr;
fhc->fhc_regs.tregs = fpregs[5].phys_addr;
board = prom_getintdefault(node, "board#", -1);
board = of_getintprop_default(dp, "board#", -1);
fhc->board = board;
tmp = upa_readl(fhc->fhc_regs.pregs + FHC_PREGS_JCTRL);
......@@ -179,33 +178,33 @@ static void probe_other_fhcs(void)
tmp = upa_readl(fhc->fhc_regs.pregs + FHC_PREGS_CTRL);
tmp |= FHC_CONTROL_IXIST;
upa_writel(tmp, fhc->fhc_regs.pregs + FHC_PREGS_CTRL);
/* Look for the next FHC. */
node = prom_getsibling(node);
if (node == 0)
break;
node = prom_searchsiblings(node, "fhc");
if (node == 0)
break;
}
}
static void probe_clock_board(struct linux_central *central,
struct linux_fhc *fhc,
int cnode, int fnode)
struct device_node *fp)
{
struct linux_prom_registers cregs[3];
int clknode, nslots, tmp, nregs;
struct device_node *dp;
struct linux_prom_registers cregs[3], *pr;
int nslots, tmp, nregs;
clknode = prom_searchsiblings(prom_getchild(fnode), "clock-board");
if (clknode == 0 || clknode == -1)
dp = fp->child;
while (dp) {
if (!strcmp(dp->name, "clock-board"))
break;
dp = dp->sibling;
}
if (!dp)
central_probe_failure(__LINE__);
nregs = prom_getproperty(clknode, "reg", (char *)&cregs[0], sizeof(cregs));
if (nregs == -1)
pr = of_get_property(dp, "reg", &nregs);
if (!pr)
central_probe_failure(__LINE__);
memcpy(cregs, pr, nregs);
nregs /= sizeof(struct linux_prom_registers);
apply_fhc_ranges(fhc, &cregs[0], nregs);
apply_central_ranges(central, &cregs[0], nregs);
central->cfreg = prom_reg_to_paddr(&cregs[0]);
......@@ -296,13 +295,13 @@ static void init_all_fhc_hw(void)
void central_probe(void)
{
struct linux_prom_registers fpregs[6];
struct linux_prom_registers fpregs[6], *pr;
struct linux_fhc *fhc;
char namebuf[128];
int cnode, fnode, err;
struct device_node *dp, *fp;
int err;
cnode = prom_finddevice("/central");
if (cnode == 0 || cnode == -1) {
dp = of_find_node_by_name(NULL, "central");
if (!dp) {
if (this_is_starfire)
starfire_cpu_setup();
return;
......@@ -321,31 +320,31 @@ void central_probe(void)
/* First init central. */
central_bus->child = fhc;
central_bus->prom_node = cnode;
prom_getstring(cnode, "name", namebuf, sizeof(namebuf));
strcpy(central_bus->prom_name, namebuf);
central_ranges_init(cnode, central_bus);
central_bus->prom_node = dp;
central_ranges_init(central_bus);
/* And then central's FHC. */
fhc->next = fhc_list;
fhc_list = fhc;
fhc->parent = central_bus;
fnode = prom_searchsiblings(prom_getchild(cnode), "fhc");
if (fnode == 0 || fnode == -1)
fp = dp->child;
while (fp) {
if (!strcmp(fp->name, "fhc"))
break;
fp = fp->sibling;
}
if (!fp)
central_probe_failure(__LINE__);
fhc->prom_node = fnode;
prom_getstring(fnode, "name", namebuf, sizeof(namebuf));
strcpy(fhc->prom_name, namebuf);
fhc_ranges_init(fnode, fhc);
fhc->prom_node = fp;
fhc_ranges_init(fhc);
/* Now, map in FHC register set. */
if (prom_getproperty(fnode, "reg", (char *)&fpregs[0], sizeof(fpregs)) == -1)
pr = of_get_property(fp, "reg", NULL);
if (!pr)
central_probe_failure(__LINE__);
memcpy(fpregs, pr, sizeof(fpregs));
apply_central_ranges(central_bus, &fpregs[0], 6);
......@@ -366,7 +365,7 @@ void central_probe(void)
fhc->jtag_master = 0;
/* Attach the clock board registers for CENTRAL. */
probe_clock_board(central_bus, fhc, cnode, fnode);
probe_clock_board(central_bus, fhc, fp);
err = upa_readl(fhc->fhc_regs.pregs + FHC_PREGS_ID);
printk("FHC(board %d): Version[%x] PartID[%x] Manuf[%x] (CENTRAL)\n",
......
......@@ -796,26 +796,26 @@ static void __init clock_assign_clk_reg(struct linux_prom_registers *clk_reg,
static int __init clock_probe_central(void)
{
struct linux_prom_registers clk_reg[2];
char model[64];
int node;
struct linux_prom_registers clk_reg[2], *pr;
struct device_node *dp;
char *model;
if (!central_bus)
return 0;
/* Get Central FHC's prom node. */
node = central_bus->child->prom_node;
dp = central_bus->child->prom_node;
/* Then get the first child device below it. */
node = prom_getchild(node);
dp = dp->child;
while (node) {
prom_getstring(node, "model", model, sizeof(model));
if (!clock_model_matches(model))
while (dp) {
model = of_get_property(dp, "model", NULL);
if (!model || !clock_model_matches(model))
goto next_sibling;
prom_getproperty(node, "reg", (char *)clk_reg,
sizeof(clk_reg));
pr = of_get_property(dp, "reg", NULL);
memcpy(clk_reg, pr, sizeof(clk_reg));
apply_fhc_ranges(central_bus->child, clk_reg, 1);
apply_central_ranges(central_bus, clk_reg, 1);
......@@ -824,7 +824,7 @@ static int __init clock_probe_central(void)
return 1;
next_sibling:
node = prom_getsibling(node);
dp = dp->sibling;
}
return 0;
......
......@@ -1106,7 +1106,7 @@ static struct zilog_layout __iomem * __init get_zs_sun4u(int chip, int zsnode)
+ FHC_UREGS_ICLR;
imap = central_bus->child->fhc_regs.uregs
+ FHC_UREGS_IMAP;
zilog_irq = build_irq(12, 0, iclr, imap);
zilog_irq = build_irq(0, iclr, imap);
} else {
err = prom_getproperty(zsnode, "interrupts",
(char *) &sun4u_ino,
......
......@@ -10,6 +10,7 @@
#include <linux/timer.h>
#include <asm/oplib.h>
#include <asm/prom.h>
#include <asm/upa.h>
struct linux_fhc;
......@@ -34,8 +35,7 @@ struct linux_central {
unsigned long clkregs;
unsigned long clkver;
int slots;
int prom_node;
char prom_name[64];
struct device_node *prom_node;
struct linux_prom_ranges central_ranges[PROMREG_MAX];
int num_central_ranges;
......@@ -112,8 +112,7 @@ struct linux_fhc {
struct fhc_regs fhc_regs;
int board;
int jtag_master;
int prom_node;
char prom_name[64];
struct device_node *prom_node;
struct linux_prom_ranges fhc_ranges[PROMREG_MAX];
int num_fhc_ranges;
......
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