3 files changed, 83 insertions, 13 deletions

diff --git a/arch/powerpc/boot/4xx.c b/arch/powerpc/boot/4xx.c
index 5c878436f348..325b310573b9 100644
--- a/arch/powerpc/boot/4xx.c
+++ b/arch/powerpc/boot/4xx.c
@@ -158,21 +158,33 @@ void ibm440spe_fixup_memsize(void)
 
 #define DDR_GET_VAL(val, mask, shift)   (((val) >> (shift)) & (mask))
 
-void ibm4xx_denali_fixup_memsize(void)
+/*
+ * Some U-Boot versions set the number of chipselects to two
+ * for Sequoia/Rainier boards while they only have one chipselect
+ * hardwired. Hardcode the number of chipselects to one
+ * for sequioa/rainer board models or read the actual value
+ * from the memory controller register DDR0_10 otherwise.
+ */
+static inline u32 ibm4xx_denali_get_cs(void)
 {
-        u32 val, max_cs, max_col, max_row;
-        u32 cs, col, row, bank, dpath;
-        unsigned long memsize;
+        void *devp;
+        char model[64];
+        u32 val, cs;
 
-        val = SDRAM0_READ(DDR0_02);
-        if (!DDR_GET_VAL(val, DDR_START, DDR_START_SHIFT))
-                fatal("DDR controller is not initialized\n");
+        devp = finddevice("/");
+        if (!devp)
+                goto read_cs;
 
-        /* get maximum cs col and row values */
-        max_cs  = DDR_GET_VAL(val, DDR_MAX_CS_REG, DDR_MAX_CS_REG_SHIFT);
-        max_col = DDR_GET_VAL(val, DDR_MAX_COL_REG, DDR_MAX_COL_REG_SHIFT);
-        max_row = DDR_GET_VAL(val, DDR_MAX_ROW_REG, DDR_MAX_ROW_REG_SHIFT);
+        if (getprop(devp, "model", model, sizeof(model)) <= 0)
+                goto read_cs;
 
+        model[sizeof(model)-1] = 0;
+
+        if (!strcmp(model, "amcc,sequoia") ||
+            !strcmp(model, "amcc,rainier"))
+                return 1;
+
+read_cs:
         /* get CS value */
         val = SDRAM0_READ(DDR0_10);
 
@@ -183,7 +195,25 @@ void ibm4xx_denali_fixup_memsize(void)
                         cs++;
                 val = val >> 1;
         }
+        return cs;
+}
+
+void ibm4xx_denali_fixup_memsize(void)
+{
+        u32 val, max_cs, max_col, max_row;
+        u32 cs, col, row, bank, dpath;
+        unsigned long memsize;
+
+        val = SDRAM0_READ(DDR0_02);
+        if (!DDR_GET_VAL(val, DDR_START, DDR_START_SHIFT))
+                fatal("DDR controller is not initialized\n");
 
+        /* get maximum cs col and row values */
+        max_cs  = DDR_GET_VAL(val, DDR_MAX_CS_REG, DDR_MAX_CS_REG_SHIFT);
+        max_col = DDR_GET_VAL(val, DDR_MAX_COL_REG, DDR_MAX_COL_REG_SHIFT);
+        max_row = DDR_GET_VAL(val, DDR_MAX_ROW_REG, DDR_MAX_ROW_REG_SHIFT);
+
+        cs = ibm4xx_denali_get_cs();
         if (!cs)
                 fatal("No memory installed\n");
         if (cs > max_cs)
@@ -193,9 +223,9 @@ void ibm4xx_denali_fixup_memsize(void)
         val = SDRAM0_READ(DDR0_14);
 
         if (DDR_GET_VAL(val, DDR_REDUC, DDR_REDUC_SHIFT))
-                dpath = 8; /* 64 bits */
-        else
                 dpath = 4; /* 32 bits */
+        else
+                dpath = 8; /* 64 bits */
 
         /* get address pins (rows) */
         val = SDRAM0_READ(DDR0_42);
diff --git a/arch/powerpc/boot/dts/gef_ppc9a.dts b/arch/powerpc/boot/dts/gef_ppc9a.dts
index d47ad0718759..53a7a6255909 100644
--- a/arch/powerpc/boot/dts/gef_ppc9a.dts
+++ b/arch/powerpc/boot/dts/gef_ppc9a.dts
@@ -161,6 +161,7 @@
                 #address-cells = <1>;
                 #size-cells = <1>;
                 #interrupt-cells = <2>;
+                device_type = "soc";
                 compatible = "fsl,mpc8641-soc", "simple-bus";
                 ranges = <0x0 0xfef00000 0x00100000>;
                 reg = <0xfef00000 0x100000>;    // CCSRBAR 1M
diff --git a/arch/powerpc/boot/dts/lite5200b.dts b/arch/powerpc/boot/dts/lite5200b.dts
index c63e3566479e..d13cb11ce623 100644
--- a/arch/powerpc/boot/dts/lite5200b.dts
+++ b/arch/powerpc/boot/dts/lite5200b.dts
@@ -293,4 +293,43 @@
                           0x02000000 0 0xa0000000 0xa0000000 0 0x10000000
                           0x01000000 0 0x00000000 0xb0000000 0 0x01000000>;
         };
+
+        localbus {
+                compatible = "fsl,mpc5200b-lpb","fsl,mpc5200-lpb","simple-bus";
+
+                #address-cells = <2>;
+                #size-cells = <1>;
+
+                ranges = <0 0 0xfe000000 0x02000000>;
+
+                flash@0,0 {
+                        compatible = "cfi-flash";
+                        reg = <0 0 0x02000000>;
+                        bank-width = <1>;
+                        #size-cells = <1>;
+                        #address-cells = <1>;
+
+                        partition@0 {
+                                label = "kernel";
+                                reg = <0x00000000 0x00200000>;
+                        };
+                        partition@200000 {
+                                label = "rootfs";
+                                reg = <0x00200000 0x01d00000>;
+                        };
+                        partition@1f00000 {
+                                label = "u-boot";
+                                reg = <0x01f00000 0x00060000>;
+                        };
+                        partition@1f60000 {
+                                label = "u-boot-env";
+                                reg = <0x01f60000 0x00020000>;
+                        };
+                        partition@1f80000 {
+                                label = "dtb";
+                                reg = <0x01f80000 0x00080000>;
+                        };
+                };
+        };
+
 };