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pci: layerscape: move pci node search in a common function

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Fix duplication of this code by placing it in a common function.
Furthermore, the resulting function will be re-used in upcoming
patches.

Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
This commit is contained in:
Laurentiu Tudor 2020-09-10 12:42:17 +03:00 committed by Priyanka Jain
parent 1f46e6790a
commit f4cd963325
1 changed files with 34 additions and 42 deletions
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76
drivers/pci/pcie_layerscape_fixup.c
View File

@ -22,6 +22,34 @@
#include "pcie_layerscape.h"
#include "pcie_layerscape_fixup_common.h"
static int fdt_pcie_get_nodeoffset(void *blob, struct ls_pcie_rc *pcie_rc)
{
int nodeoffset;
uint svr;
char *compat = NULL;
/* find pci controller node */
nodeoffset = fdt_node_offset_by_compat_reg(blob, "fsl,ls-pcie",
pcie_rc->dbi_res.start);
if (nodeoffset < 0) {
#ifdef CONFIG_FSL_PCIE_COMPAT /* Compatible with older version of dts node */
svr = (get_svr() >> SVR_VAR_PER_SHIFT) & 0xFFFFFE;
if (svr == SVR_LS2088A || svr == SVR_LS2084A ||
svr == SVR_LS2048A || svr == SVR_LS2044A ||
svr == SVR_LS2081A || svr == SVR_LS2041A)
compat = "fsl,ls2088a-pcie";
else
compat = CONFIG_FSL_PCIE_COMPAT;
nodeoffset =
fdt_node_offset_by_compat_reg(blob, compat,
pcie_rc->dbi_res.start);
#endif
}
return nodeoffset;
}
#if defined(CONFIG_FSL_LSCH3) || defined(CONFIG_FSL_LSCH2)
/*
* Return next available LUT index.
@ -127,30 +155,11 @@ static void fdt_pcie_set_iommu_map_entry_ls(void *blob,
u32 iommu_map[4];
int nodeoffset;
int lenp;
uint svr;
char *compat = NULL;
struct ls_pcie *pcie = pcie_rc->pcie;
/* find pci controller node */
nodeoffset = fdt_node_offset_by_compat_reg(blob, "fsl,ls-pcie",
pcie_rc->dbi_res.start);
if (nodeoffset < 0) {
#ifdef CONFIG_FSL_PCIE_COMPAT /* Compatible with older version of dts node */
svr = (get_svr() >> SVR_VAR_PER_SHIFT) & 0xFFFFFE;
if (svr == SVR_LS2088A || svr == SVR_LS2084A ||
svr == SVR_LS2048A || svr == SVR_LS2044A ||
svr == SVR_LS2081A || svr == SVR_LS2041A)
compat = "fsl,ls2088a-pcie";
else
compat = CONFIG_FSL_PCIE_COMPAT;
if (compat)
nodeoffset = fdt_node_offset_by_compat_reg(blob,
compat, pcie_rc->dbi_res.start);
#endif
if (nodeoffset < 0)
return;
}
nodeoffset = fdt_pcie_get_nodeoffset(blob, pcie_rc);
if (nodeoffset < 0)
return;
/* get phandle to iommu controller */
prop = fdt_getprop_w(blob, nodeoffset, "iommu-map", &lenp);
@ -238,28 +247,11 @@ static void fdt_fixup_pcie_ls(void *blob)
static void ft_pcie_rc_fix(void *blob, struct ls_pcie_rc *pcie_rc)
{
int off;
uint svr;
char *compat = NULL;
struct ls_pcie *pcie = pcie_rc->pcie;
off = fdt_node_offset_by_compat_reg(blob, "fsl,ls-pcie",
pcie_rc->dbi_res.start);
if (off < 0) {
#ifdef CONFIG_FSL_PCIE_COMPAT /* Compatible with older version of dts node */
svr = (get_svr() >> SVR_VAR_PER_SHIFT) & 0xFFFFFE;
if (svr == SVR_LS2088A || svr == SVR_LS2084A ||
svr == SVR_LS2048A || svr == SVR_LS2044A ||
svr == SVR_LS2081A || svr == SVR_LS2041A)
compat = "fsl,ls2088a-pcie";
else
compat = CONFIG_FSL_PCIE_COMPAT;
if (compat)
off = fdt_node_offset_by_compat_reg(blob,
compat, pcie_rc->dbi_res.start);
#endif
if (off < 0)
return;
}
off = fdt_pcie_get_nodeoffset(blob, pcie_rc);
if (off < 0)
return;
if (pcie_rc->enabled && pcie->mode == PCI_HEADER_TYPE_BRIDGE)
fdt_set_node_status(blob, off, FDT_STATUS_OKAY, 0);