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authorWenbin Song <wenbin.song@nxp.com>2017-01-17 18:31:16 +0800
committerYork Sun <york.sun@nxp.com>2017-01-18 09:29:27 -0800
commit2ca84bf7b2d7930b424b19f5027d3c06ec7cb696 (patch)
tree874436be87a417e0bbc53205b21937ae2f17fae0
parentfa18ed76589a684fc9ba14b68d7b917b1bea16cf (diff)
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armv8/fsl-layerscape: fdt: fixup LS1043A rev1 MSI node
The default MSI node in kernel tree is for LS1043A rev1.0 silicon, if rev1.1 silicon used, need to fixup the MSI node to match it. Signed-off-by: Wenbin Song <wenbin.song@nxp.com> Signed-off-by: Mingkai Hu <mingkai.hu@nxp.com> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
-rw-r--r--arch/arm/cpu/armv8/fsl-layerscape/Kconfig3
-rw-r--r--arch/arm/cpu/armv8/fsl-layerscape/fdt.c154
2 files changed, 157 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
index dce1689..66588e9 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
+++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
@@ -94,6 +94,9 @@ config HAS_FEATURE_GIC64K_ALIGN
bool
default y if ARCH_LS1043A
+config HAS_FEATURE_ENHANCED_MSI
+ bool
+ default y if ARCH_LS1043A
menu "Layerscape PPA"
config FSL_LS_PPA
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
index f289172..dae9605 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
@@ -194,6 +194,157 @@ static void fdt_fixup_gic(void *blob)
}
#endif
+#ifdef CONFIG_HAS_FEATURE_ENHANCED_MSI
+static int _fdt_fixup_msi_node(void *blob, const char *name,
+ int irq_0, int irq_1, int rev)
+{
+ int err, offset, len;
+ u32 tmp[4][3];
+ void *p;
+
+ offset = fdt_path_offset(blob, name);
+ if (offset < 0) {
+ printf("WARNING: fdt_path_offset can't find path %s: %s\n",
+ name, fdt_strerror(offset));
+ return 0;
+ }
+
+ /*fixup the property of interrupts*/
+
+ tmp[0][0] = cpu_to_fdt32(0x0);
+ tmp[0][1] = cpu_to_fdt32(irq_0);
+ tmp[0][2] = cpu_to_fdt32(0x4);
+
+ if (rev > REV1_0) {
+ tmp[1][0] = cpu_to_fdt32(0x0);
+ tmp[1][1] = cpu_to_fdt32(irq_1);
+ tmp[1][2] = cpu_to_fdt32(0x4);
+ tmp[2][0] = cpu_to_fdt32(0x0);
+ tmp[2][1] = cpu_to_fdt32(irq_1 + 1);
+ tmp[2][2] = cpu_to_fdt32(0x4);
+ tmp[3][0] = cpu_to_fdt32(0x0);
+ tmp[3][1] = cpu_to_fdt32(irq_1 + 2);
+ tmp[3][2] = cpu_to_fdt32(0x4);
+ len = sizeof(tmp);
+ } else {
+ len = sizeof(tmp[0]);
+ }
+
+ err = fdt_setprop(blob, offset, "interrupts", tmp, len);
+ if (err < 0) {
+ printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
+ "interrupts", name, fdt_strerror(err));
+ return 0;
+ }
+
+ /*fixup the property of reg*/
+ p = (char *)fdt_getprop(blob, offset, "reg", &len);
+ if (!p) {
+ printf("WARNING: fdt_getprop can't get %s from node %s\n",
+ "reg", name);
+ return 0;
+ }
+
+ memcpy((char *)tmp, p, len);
+
+ if (rev > REV1_0)
+ *((u32 *)tmp + 3) = cpu_to_fdt32(0x1000);
+ else
+ *((u32 *)tmp + 3) = cpu_to_fdt32(0x8);
+
+ err = fdt_setprop(blob, offset, "reg", tmp, len);
+ if (err < 0) {
+ printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
+ "reg", name, fdt_strerror(err));
+ return 0;
+ }
+
+ /*fixup the property of compatible*/
+ if (rev > REV1_0)
+ err = fdt_setprop_string(blob, offset, "compatible",
+ "fsl,ls1043a-v1.1-msi");
+ else
+ err = fdt_setprop_string(blob, offset, "compatible",
+ "fsl,ls1043a-msi");
+ if (err < 0) {
+ printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
+ "compatible", name, fdt_strerror(err));
+ return 0;
+ }
+
+ return 1;
+}
+
+static int _fdt_fixup_pci_msi(void *blob, const char *name, int rev)
+{
+ int offset, len, err;
+ void *p;
+ int val;
+ u32 tmp[4][8];
+
+ offset = fdt_path_offset(blob, name);
+ if (offset < 0) {
+ printf("WARNING: fdt_path_offset can't find path %s: %s\n",
+ name, fdt_strerror(offset));
+ return 0;
+ }
+
+ p = (char *)fdt_getprop(blob, offset, "interrupt-map", &len);
+ if (!p || len != sizeof(tmp)) {
+ printf("WARNING: fdt_getprop can't get %s from node %s\n",
+ "interrupt-map", name);
+ return 0;
+ }
+
+ memcpy((char *)tmp, p, len);
+
+ val = fdt32_to_cpu(tmp[0][6]);
+ if (rev > REV1_0) {
+ tmp[1][6] = cpu_to_fdt32(val + 1);
+ tmp[2][6] = cpu_to_fdt32(val + 2);
+ tmp[3][6] = cpu_to_fdt32(val + 3);
+ } else {
+ tmp[1][6] = cpu_to_fdt32(val);
+ tmp[2][6] = cpu_to_fdt32(val);
+ tmp[3][6] = cpu_to_fdt32(val);
+ }
+
+ err = fdt_setprop(blob, offset, "interrupt-map", tmp, sizeof(tmp));
+ if (err < 0) {
+ printf("WARNING: fdt_setprop can't set %s from node %s: %s.\n",
+ "interrupt-map", name, fdt_strerror(err));
+ return 0;
+ }
+ return 1;
+}
+
+/* Fixup msi node for ls1043a rev1.1*/
+
+static void fdt_fixup_msi(void *blob)
+{
+ struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
+ unsigned int rev;
+
+ rev = gur_in32(&gur->svr);
+
+ if (SVR_SOC_VER(rev) != SVR_LS1043A)
+ return;
+
+ rev = SVR_REV(rev);
+
+ _fdt_fixup_msi_node(blob, "/soc/msi-controller1@1571000",
+ 116, 111, rev);
+ _fdt_fixup_msi_node(blob, "/soc/msi-controller2@1572000",
+ 126, 121, rev);
+ _fdt_fixup_msi_node(blob, "/soc/msi-controller3@1573000",
+ 160, 155, rev);
+
+ _fdt_fixup_pci_msi(blob, "/soc/pcie@3400000", rev);
+ _fdt_fixup_pci_msi(blob, "/soc/pcie@3500000", rev);
+ _fdt_fixup_pci_msi(blob, "/soc/pcie@3600000", rev);
+}
+#endif
+
void ft_cpu_setup(void *blob, bd_t *bd)
{
#ifdef CONFIG_FSL_LSCH2
@@ -241,4 +392,7 @@ void ft_cpu_setup(void *blob, bd_t *bd)
#ifdef CONFIG_HAS_FEATURE_GIC64K_ALIGN
fdt_fixup_gic(blob);
#endif
+#ifdef CONFIG_HAS_FEATURE_ENHANCED_MSI
+ fdt_fixup_msi(blob);
+#endif
}