[U-Boot] [v3 2/2] armv8: ls1043a: Discard the needless cpu nodes

[Wenbin song]

Using "cpu_pos_mask()" function to detect the real online cpus,
and discard the needless cpu nodes on kernel dts.

Signed-off-by: Wenbin Song 
---
Changes for v2:
None.
---
 arch/arm/cpu/armv8/fsl-layerscape/fdt.c | 27 +++
 1 file changed, 27 insertions(+)

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c 
b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
index d1a7d0de9c..39ffe1ab4d 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
@@ -42,6 +42,33 @@ void ft_fixup_cpu(void *blob)
int addr_cells;
u64 val, core_id;
size_t *boot_code_size = &(__secondary_boot_code_size);
+   u32 mask = cpu_pos_mask();
+   int off_prev = -1;
+
+   off = fdt_path_offset(blob, "/cpus");
+   if (off < 0) {
+   puts("couldn't find /cpus node\n");
+   return;
+   }
+
+   fdt_support_default_count_cells(blob, off, _cells, NULL);
+
+   off = fdt_node_offset_by_prop_value(blob, off_prev, "device_type",
+   "cpu", 4);
+   while (off != -FDT_ERR_NOTFOUND) {
+   reg = (fdt32_t *)fdt_getprop(blob, off, "reg", 0);
+   if (reg) {
+   core_id = fdt_read_number(reg, addr_cells);
+   if (!test_bit(id_to_core(core_id), )) {
+   fdt_del_node(blob, off);
+   off = off_prev;
+   }
+   }
+   off_prev = off;
+   off = fdt_node_offset_by_prop_value(blob, off_prev,
+   "device_type", "cpu", 4);
+   }
+
 #if defined(CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT) && \
defined(CONFIG_SEC_FIRMWARE_ARMV8_PSCI)
int node;
-- 
2.14.1

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[U-Boot] [v3 2/2] armv8: ls1043a: Discard the needless cpu nodes

[Wenbin song]

Using "cpu_pos_mask()" function to detect the real online cpus,
and discard the needless cpu nodes on kernel dts.

Signed-off-by: Wenbin Song 
---
Changes for v2:
None.
---
 arch/arm/cpu/armv8/fsl-layerscape/fdt.c | 27 +++
 1 file changed, 27 insertions(+)

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c 
b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
index d1a7d0de9c..39ffe1ab4d 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
@@ -42,6 +42,33 @@ void ft_fixup_cpu(void *blob)
int addr_cells;
u64 val, core_id;
size_t *boot_code_size = &(__secondary_boot_code_size);
+   u32 mask = cpu_pos_mask();
+   int off_prev = -1;
+
+   off = fdt_path_offset(blob, "/cpus");
+   if (off < 0) {
+   puts("couldn't find /cpus node\n");
+   return;
+   }
+
+   fdt_support_default_count_cells(blob, off, _cells, NULL);
+
+   off = fdt_node_offset_by_prop_value(blob, off_prev, "device_type",
+   "cpu", 4);
+   while (off != -FDT_ERR_NOTFOUND) {
+   reg = (fdt32_t *)fdt_getprop(blob, off, "reg", 0);
+   if (reg) {
+   core_id = fdt_read_number(reg, addr_cells);
+   if (!test_bit(id_to_core(core_id), )) {
+   fdt_del_node(blob, off);
+   off = off_prev;
+   }
+   }
+   off_prev = off;
+   off = fdt_node_offset_by_prop_value(blob, off_prev,
+   "device_type", "cpu", 4);
+   }
+
 #if defined(CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT) && \
defined(CONFIG_SEC_FIRMWARE_ARMV8_PSCI)
int node;
-- 
2.14.1

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