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