1 files changed, 142 insertions, 0 deletions

diff --git a/arch/powerpc/boot/cuboot-hotfoot.c b/arch/powerpc/boot/cuboot-hotfoot.c
new file mode 100644
index 000000000000..8f697b958e45
--- /dev/null
+++ b/arch/powerpc/boot/cuboot-hotfoot.c
@@ -0,0 +1,142 @@
+/*
+ * Old U-boot compatibility for Esteem 195E Hotfoot CPU Board
+ *
+ * Author: Solomon Peachy <solomon@linux-wlan.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include "ops.h"
+#include "stdio.h"
+#include "reg.h"
+#include "dcr.h"
+#include "4xx.h"
+#include "cuboot.h"
+
+#define TARGET_4xx
+#define TARGET_HOTFOOT
+
+#include "ppcboot-hotfoot.h"
+
+static bd_t bd;
+
+#define NUM_REGS 3
+
+static void hotfoot_fixups(void)
+{
+        u32 uart = mfdcr(DCRN_CPC0_UCR) & 0x7f;
+
+        dt_fixup_memory(bd.bi_memstart, bd.bi_memsize); 
+
+        dt_fixup_cpu_clocks(bd.bi_procfreq, bd.bi_procfreq, 0);
+        dt_fixup_clock("/plb", bd.bi_plb_busfreq);
+        dt_fixup_clock("/plb/opb", bd.bi_opbfreq);
+        dt_fixup_clock("/plb/ebc", bd.bi_pci_busfreq);
+        dt_fixup_clock("/plb/opb/serial@ef600300", bd.bi_procfreq / uart); 
+        dt_fixup_clock("/plb/opb/serial@ef600400", bd.bi_procfreq / uart); 
+        
+        dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
+        dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
+
+        /* Is this a single eth/serial board? */
+        if ((bd.bi_enet1addr[0] == 0) && 
+            (bd.bi_enet1addr[1] == 0) &&
+            (bd.bi_enet1addr[2] == 0) &&
+            (bd.bi_enet1addr[3] == 0) &&
+            (bd.bi_enet1addr[4] == 0) &&
+            (bd.bi_enet1addr[5] == 0)) {
+                void *devp;
+
+                printf("Trimming devtree for single serial/eth board\n");
+
+                devp = finddevice("/plb/opb/serial@ef600300");
+                if (!devp)
+                        fatal("Can't find node for /plb/opb/serial@ef600300");
+                del_node(devp);
+
+                devp = finddevice("/plb/opb/ethernet@ef600900");
+                if (!devp)
+                        fatal("Can't find node for /plb/opb/ethernet@ef600900");
+                del_node(devp);
+        }
+
+        ibm4xx_quiesce_eth((u32 *)0xef600800, (u32 *)0xef600900);
+
+        /* Fix up flash size in fdt for 4M boards. */
+        if (bd.bi_flashsize < 0x800000) {
+                u32 regs[NUM_REGS];
+                void *devp = finddevice("/plb/ebc/nor_flash@0");
+                if (!devp)
+                        fatal("Can't find FDT node for nor_flash!??");
+
+                printf("Fixing devtree for 4M Flash\n");
+                
+                /* First fix up the base addresse */
+                getprop(devp, "reg", regs, sizeof(regs));
+                regs[0] = 0;
+                regs[1] = 0xffc00000;
+                regs[2] = 0x00400000;
+                setprop(devp, "reg", regs, sizeof(regs));
+                
+                /* Then the offsets */
+                devp = finddevice("/plb/ebc/nor_flash@0/partition@0");
+                if (!devp)
+                        fatal("Can't find FDT node for partition@0");
+                getprop(devp, "reg", regs, 2*sizeof(u32));
+                regs[0] -= 0x400000;
+                setprop(devp, "reg", regs,  2*sizeof(u32));
+
+                devp = finddevice("/plb/ebc/nor_flash@0/partition@1");
+                if (!devp)
+                        fatal("Can't find FDT node for partition@1");
+                getprop(devp, "reg", regs, 2*sizeof(u32));
+                regs[0] -= 0x400000;
+                setprop(devp, "reg", regs,  2*sizeof(u32));
+
+                devp = finddevice("/plb/ebc/nor_flash@0/partition@2");
+                if (!devp)
+                        fatal("Can't find FDT node for partition@2");
+                getprop(devp, "reg", regs, 2*sizeof(u32));
+                regs[0] -= 0x400000;
+                setprop(devp, "reg", regs,  2*sizeof(u32));
+
+                devp = finddevice("/plb/ebc/nor_flash@0/partition@3");
+                if (!devp)
+                        fatal("Can't find FDT node for partition@3");
+                getprop(devp, "reg", regs, 2*sizeof(u32));
+                regs[0] -= 0x400000;
+                setprop(devp, "reg", regs,  2*sizeof(u32));
+
+                devp = finddevice("/plb/ebc/nor_flash@0/partition@4");
+                if (!devp)
+                        fatal("Can't find FDT node for partition@4");
+                getprop(devp, "reg", regs, 2*sizeof(u32));
+                regs[0] -= 0x400000;
+                setprop(devp, "reg", regs,  2*sizeof(u32));
+
+                devp = finddevice("/plb/ebc/nor_flash@0/partition@6");
+                if (!devp)
+                        fatal("Can't find FDT node for partition@6");
+                getprop(devp, "reg", regs, 2*sizeof(u32));
+                regs[0] -= 0x400000;
+                setprop(devp, "reg", regs,  2*sizeof(u32));
+
+                /* Delete the FeatFS node */
+                devp = finddevice("/plb/ebc/nor_flash@0/partition@5");
+                if (!devp)
+                        fatal("Can't find FDT node for partition@5");
+                del_node(devp);
+        }
+}
+
+void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
+                   unsigned long r6, unsigned long r7)
+{
+        CUBOOT_INIT();
+        platform_ops.fixups = hotfoot_fixups;
+        platform_ops.exit = ibm40x_dbcr_reset;
+        fdt_init(_dtb_start);
+        serial_console_init();
+}