From: Scott Wood <scottwood@freescale.com>
Date: Thu, 30 Aug 2007 17:06:21 +0000 (-0500)
Subject: [POWERPC] bootwrapper: Support all-in-one PCI nodes in cuboot-pq2.
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=568091512d464b06f17b88bfd2bdc1ec98a697bd;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[POWERPC] bootwrapper: Support all-in-one PCI nodes in cuboot-pq2.

Consensus was reached to put PCI nodes at the root of the tree (and not
under /soc), but the phandle to a control node was rejected in favor of
simply not worrying about /pci/reg overlapping /soc/ranges.

This updates cuboot-82xx to not look for the phandle.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
---

diff --git a/arch/powerpc/boot/cuboot-pq2.c b/arch/powerpc/boot/cuboot-pq2.c
index b150bd4f1b73..d3d3388d552f 100644
--- a/arch/powerpc/boot/cuboot-pq2.c
+++ b/arch/powerpc/boot/cuboot-pq2.c
@@ -139,11 +139,11 @@ static void fixup_pci(void)
 	u32 *pci_regs[3];
 	u8 *soc_regs;
 	int i, len;
-	void *ctrl_node, *bus_node, *parent_node, *soc_node;
-	u32 naddr, nsize, bus_ph, mem_log2;
+	void *node, *parent_node, *soc_node;
+	u32 naddr, nsize, mem_log2;
 
-	ctrl_node = finddevice("/soc/pci");
-	if (!ctrl_node || !dt_is_compatible(ctrl_node, "fsl,pq2-pci"))
+	node = finddevice("/pci");
+	if (!node || !dt_is_compatible(node, "fsl,pq2-pci"))
 		return;
 
 	soc_node = finddevice("/soc");
@@ -151,27 +151,18 @@ static void fixup_pci(void)
 		goto err;
 
 	for (i = 0; i < 3; i++)
-		if (!dt_xlate_reg(ctrl_node, i,
+		if (!dt_xlate_reg(node, i,
 		                  (unsigned long *)&pci_regs[i], NULL))
 			goto err;
 
 	if (!dt_xlate_reg(soc_node, 0, (unsigned long *)&soc_regs, NULL))
 		goto err;
 
-	len = getprop(ctrl_node, "fsl,bus", &bus_ph, 4);
-	if (len != 4)
-		goto err;
-
-	bus_node = find_node_by_prop_value(NULL, "linux,phandle",
-	                                   (char *)&bus_ph, 4);
-	if (!bus_node)
-		goto err;
-
-	dt_get_reg_format(bus_node, &naddr, &nsize);
+	dt_get_reg_format(node, &naddr, &nsize);
 	if (naddr != 3 || nsize != 2)
 		goto err;
 
-	parent_node = get_parent(bus_node);
+	parent_node = get_parent(node);
 	if (!parent_node)
 		goto err;
 
@@ -179,7 +170,7 @@ static void fixup_pci(void)
 	if (naddr != 1 || nsize != 1)
 		goto err;
 
-	len = getprop(bus_node, "ranges", pci_ranges_buf,
+	len = getprop(node, "ranges", pci_ranges_buf,
 	              sizeof(pci_ranges_buf));
 
 	for (i = 0; i < len / sizeof(struct pci_range); i++) {