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59 lines
1.8 KiB
Diff
59 lines
1.8 KiB
Diff
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From 486a578298b7ab45c3edfdce8d4feaef93c3229b Mon Sep 17 00:00:00 2001
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From: Daniel Hellstrom <daniel@gaisler.com>
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Date: Thu, 16 Sep 2010 11:15:37 +0200
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Subject: [PATCH] SPARC/LEON: to avoid name duplicates in openprom fs when REG is not available the NAME now includes NODE ID when REG not present
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Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
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---
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arch/sparc/kernel/prom_32.c | 27 +++++++++++++++++++--------
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1 files changed, 19 insertions(+), 8 deletions(-)
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--- a/arch/sparc/kernel/prom_32.c
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+++ b/arch/sparc/kernel/prom_32.c
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@@ -136,18 +136,29 @@ static void __init ebus_path_component(s
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/* "name:vendor:device@irq,addrlo" */
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static void __init ambapp_path_component(struct device_node *dp, char *tmp_buf)
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{
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- struct amba_prom_registers *regs; unsigned int *intr;
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- unsigned int *device, *vendor;
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+ struct amba_prom_registers *regs;
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+ unsigned int *intr, *device, *vendor, reg0;
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struct property *prop;
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+ int interrupt = 0;
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+ /* In order to get a unique ID in the device tree (multiple AMBA devices
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+ * may have the same name) the node number is printed
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+ */
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prop = of_find_property(dp, "reg", NULL);
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- if (!prop)
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- return;
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- regs = prop->value;
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+ if (!prop) {
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+ reg0 = (unsigned int)dp->phandle;
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+ } else {
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+ regs = prop->value;
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+ reg0 = regs->phys_addr;
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+ }
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+
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+ /* Not all cores have Interrupt */
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prop = of_find_property(dp, "interrupts", NULL);
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if (!prop)
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- return;
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- intr = prop->value;
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+ intr = &interrupt; /* IRQ0 does not exist */
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+ else
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+ intr = prop->value;
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+
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prop = of_find_property(dp, "vendor", NULL);
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if (!prop)
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return;
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@@ -159,7 +170,7 @@ static void __init ambapp_path_component
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sprintf(tmp_buf, "%s:%d:%d@%x,%x",
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dp->name, *vendor, *device,
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- *intr, regs->phys_addr);
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+ *intr, reg0);
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}
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static void __init __build_path_component(struct device_node *dp, char *tmp_buf)
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