Commit | Line | Data |
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0cdf50a7 SP |
1 | /* |
2 | * Old U-boot compatibility for Esteem 195E Hotfoot CPU Board | |
3 | * | |
4 | * Author: Solomon Peachy <solomon@linux-wlan.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License version 2 as published | |
8 | * by the Free Software Foundation. | |
9 | */ | |
10 | ||
11 | #include "ops.h" | |
12 | #include "stdio.h" | |
13 | #include "reg.h" | |
14 | #include "dcr.h" | |
15 | #include "4xx.h" | |
16 | #include "cuboot.h" | |
17 | ||
18 | #define TARGET_4xx | |
19 | #define TARGET_HOTFOOT | |
20 | ||
21 | #include "ppcboot-hotfoot.h" | |
22 | ||
23 | static bd_t bd; | |
24 | ||
25 | #define NUM_REGS 3 | |
26 | ||
27 | static void hotfoot_fixups(void) | |
28 | { | |
29 | u32 uart = mfdcr(DCRN_CPC0_UCR) & 0x7f; | |
30 | ||
31 | dt_fixup_memory(bd.bi_memstart, bd.bi_memsize); | |
32 | ||
33 | dt_fixup_cpu_clocks(bd.bi_procfreq, bd.bi_procfreq, 0); | |
34 | dt_fixup_clock("/plb", bd.bi_plb_busfreq); | |
35 | dt_fixup_clock("/plb/opb", bd.bi_opbfreq); | |
36 | dt_fixup_clock("/plb/ebc", bd.bi_pci_busfreq); | |
37 | dt_fixup_clock("/plb/opb/serial@ef600300", bd.bi_procfreq / uart); | |
38 | dt_fixup_clock("/plb/opb/serial@ef600400", bd.bi_procfreq / uart); | |
39 | ||
40 | dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr); | |
41 | dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr); | |
42 | ||
43 | /* Is this a single eth/serial board? */ | |
44 | if ((bd.bi_enet1addr[0] == 0) && | |
45 | (bd.bi_enet1addr[1] == 0) && | |
46 | (bd.bi_enet1addr[2] == 0) && | |
47 | (bd.bi_enet1addr[3] == 0) && | |
48 | (bd.bi_enet1addr[4] == 0) && | |
49 | (bd.bi_enet1addr[5] == 0)) { | |
50 | void *devp; | |
51 | ||
52 | printf("Trimming devtree for single serial/eth board\n"); | |
53 | ||
54 | devp = finddevice("/plb/opb/serial@ef600300"); | |
55 | if (!devp) | |
56 | fatal("Can't find node for /plb/opb/serial@ef600300"); | |
57 | del_node(devp); | |
58 | ||
59 | devp = finddevice("/plb/opb/ethernet@ef600900"); | |
60 | if (!devp) | |
61 | fatal("Can't find node for /plb/opb/ethernet@ef600900"); | |
62 | del_node(devp); | |
63 | } | |
64 | ||
65 | ibm4xx_quiesce_eth((u32 *)0xef600800, (u32 *)0xef600900); | |
66 | ||
67 | /* Fix up flash size in fdt for 4M boards. */ | |
68 | if (bd.bi_flashsize < 0x800000) { | |
69 | u32 regs[NUM_REGS]; | |
70 | void *devp = finddevice("/plb/ebc/nor_flash@0"); | |
71 | if (!devp) | |
72 | fatal("Can't find FDT node for nor_flash!??"); | |
73 | ||
74 | printf("Fixing devtree for 4M Flash\n"); | |
75 | ||
76 | /* First fix up the base addresse */ | |
77 | getprop(devp, "reg", regs, sizeof(regs)); | |
78 | regs[0] = 0; | |
79 | regs[1] = 0xffc00000; | |
80 | regs[2] = 0x00400000; | |
81 | setprop(devp, "reg", regs, sizeof(regs)); | |
82 | ||
83 | /* Then the offsets */ | |
84 | devp = finddevice("/plb/ebc/nor_flash@0/partition@0"); | |
85 | if (!devp) | |
86 | fatal("Can't find FDT node for partition@0"); | |
87 | getprop(devp, "reg", regs, 2*sizeof(u32)); | |
88 | regs[0] -= 0x400000; | |
89 | setprop(devp, "reg", regs, 2*sizeof(u32)); | |
90 | ||
91 | devp = finddevice("/plb/ebc/nor_flash@0/partition@1"); | |
92 | if (!devp) | |
93 | fatal("Can't find FDT node for partition@1"); | |
94 | getprop(devp, "reg", regs, 2*sizeof(u32)); | |
95 | regs[0] -= 0x400000; | |
96 | setprop(devp, "reg", regs, 2*sizeof(u32)); | |
97 | ||
98 | devp = finddevice("/plb/ebc/nor_flash@0/partition@2"); | |
99 | if (!devp) | |
100 | fatal("Can't find FDT node for partition@2"); | |
101 | getprop(devp, "reg", regs, 2*sizeof(u32)); | |
102 | regs[0] -= 0x400000; | |
103 | setprop(devp, "reg", regs, 2*sizeof(u32)); | |
104 | ||
105 | devp = finddevice("/plb/ebc/nor_flash@0/partition@3"); | |
106 | if (!devp) | |
107 | fatal("Can't find FDT node for partition@3"); | |
108 | getprop(devp, "reg", regs, 2*sizeof(u32)); | |
109 | regs[0] -= 0x400000; | |
110 | setprop(devp, "reg", regs, 2*sizeof(u32)); | |
111 | ||
112 | devp = finddevice("/plb/ebc/nor_flash@0/partition@4"); | |
113 | if (!devp) | |
114 | fatal("Can't find FDT node for partition@4"); | |
115 | getprop(devp, "reg", regs, 2*sizeof(u32)); | |
116 | regs[0] -= 0x400000; | |
117 | setprop(devp, "reg", regs, 2*sizeof(u32)); | |
118 | ||
119 | devp = finddevice("/plb/ebc/nor_flash@0/partition@6"); | |
120 | if (!devp) | |
121 | fatal("Can't find FDT node for partition@6"); | |
122 | getprop(devp, "reg", regs, 2*sizeof(u32)); | |
123 | regs[0] -= 0x400000; | |
124 | setprop(devp, "reg", regs, 2*sizeof(u32)); | |
125 | ||
126 | /* Delete the FeatFS node */ | |
127 | devp = finddevice("/plb/ebc/nor_flash@0/partition@5"); | |
128 | if (!devp) | |
129 | fatal("Can't find FDT node for partition@5"); | |
130 | del_node(devp); | |
131 | } | |
132 | } | |
133 | ||
134 | void platform_init(unsigned long r3, unsigned long r4, unsigned long r5, | |
135 | unsigned long r6, unsigned long r7) | |
136 | { | |
137 | CUBOOT_INIT(); | |
138 | platform_ops.fixups = hotfoot_fixups; | |
139 | platform_ops.exit = ibm40x_dbcr_reset; | |
140 | fdt_init(_dtb_start); | |
141 | serial_console_init(); | |
142 | } |