mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-25 03:40:53 +07:00
[SPARC64]: Convert central bus layer to in-kernel PROM device tree.
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
parent
9c10a58ed6
commit
cecc4e9222
@ -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;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user