1d2912cb1SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only
20cdf50a7SSolomon Peachy /*
30cdf50a7SSolomon Peachy * Old U-boot compatibility for Esteem 195E Hotfoot CPU Board
40cdf50a7SSolomon Peachy *
50cdf50a7SSolomon Peachy * Author: Solomon Peachy <solomon@linux-wlan.com>
60cdf50a7SSolomon Peachy */
70cdf50a7SSolomon Peachy
80cdf50a7SSolomon Peachy #include "ops.h"
90cdf50a7SSolomon Peachy #include "stdio.h"
100cdf50a7SSolomon Peachy #include "reg.h"
110cdf50a7SSolomon Peachy #include "dcr.h"
120cdf50a7SSolomon Peachy #include "4xx.h"
130cdf50a7SSolomon Peachy #include "cuboot.h"
140cdf50a7SSolomon Peachy
150cdf50a7SSolomon Peachy #define TARGET_4xx
160cdf50a7SSolomon Peachy #define TARGET_HOTFOOT
170cdf50a7SSolomon Peachy
180cdf50a7SSolomon Peachy #include "ppcboot-hotfoot.h"
190cdf50a7SSolomon Peachy
200cdf50a7SSolomon Peachy static bd_t bd;
210cdf50a7SSolomon Peachy
220cdf50a7SSolomon Peachy #define NUM_REGS 3
230cdf50a7SSolomon Peachy
hotfoot_fixups(void)240cdf50a7SSolomon Peachy static void hotfoot_fixups(void)
250cdf50a7SSolomon Peachy {
260cdf50a7SSolomon Peachy u32 uart = mfdcr(DCRN_CPC0_UCR) & 0x7f;
270cdf50a7SSolomon Peachy
280cdf50a7SSolomon Peachy dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
290cdf50a7SSolomon Peachy
300cdf50a7SSolomon Peachy dt_fixup_cpu_clocks(bd.bi_procfreq, bd.bi_procfreq, 0);
310cdf50a7SSolomon Peachy dt_fixup_clock("/plb", bd.bi_plb_busfreq);
320cdf50a7SSolomon Peachy dt_fixup_clock("/plb/opb", bd.bi_opbfreq);
330cdf50a7SSolomon Peachy dt_fixup_clock("/plb/ebc", bd.bi_pci_busfreq);
340cdf50a7SSolomon Peachy dt_fixup_clock("/plb/opb/serial@ef600300", bd.bi_procfreq / uart);
350cdf50a7SSolomon Peachy dt_fixup_clock("/plb/opb/serial@ef600400", bd.bi_procfreq / uart);
360cdf50a7SSolomon Peachy
370cdf50a7SSolomon Peachy dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
380cdf50a7SSolomon Peachy dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
390cdf50a7SSolomon Peachy
400cdf50a7SSolomon Peachy /* Is this a single eth/serial board? */
410cdf50a7SSolomon Peachy if ((bd.bi_enet1addr[0] == 0) &&
420cdf50a7SSolomon Peachy (bd.bi_enet1addr[1] == 0) &&
430cdf50a7SSolomon Peachy (bd.bi_enet1addr[2] == 0) &&
440cdf50a7SSolomon Peachy (bd.bi_enet1addr[3] == 0) &&
450cdf50a7SSolomon Peachy (bd.bi_enet1addr[4] == 0) &&
460cdf50a7SSolomon Peachy (bd.bi_enet1addr[5] == 0)) {
470cdf50a7SSolomon Peachy void *devp;
480cdf50a7SSolomon Peachy
490cdf50a7SSolomon Peachy printf("Trimming devtree for single serial/eth board\n");
500cdf50a7SSolomon Peachy
510cdf50a7SSolomon Peachy devp = finddevice("/plb/opb/serial@ef600300");
520cdf50a7SSolomon Peachy if (!devp)
530cdf50a7SSolomon Peachy fatal("Can't find node for /plb/opb/serial@ef600300");
540cdf50a7SSolomon Peachy del_node(devp);
550cdf50a7SSolomon Peachy
560cdf50a7SSolomon Peachy devp = finddevice("/plb/opb/ethernet@ef600900");
570cdf50a7SSolomon Peachy if (!devp)
580cdf50a7SSolomon Peachy fatal("Can't find node for /plb/opb/ethernet@ef600900");
590cdf50a7SSolomon Peachy del_node(devp);
600cdf50a7SSolomon Peachy }
610cdf50a7SSolomon Peachy
620cdf50a7SSolomon Peachy ibm4xx_quiesce_eth((u32 *)0xef600800, (u32 *)0xef600900);
630cdf50a7SSolomon Peachy
640cdf50a7SSolomon Peachy /* Fix up flash size in fdt for 4M boards. */
650cdf50a7SSolomon Peachy if (bd.bi_flashsize < 0x800000) {
660cdf50a7SSolomon Peachy u32 regs[NUM_REGS];
670cdf50a7SSolomon Peachy void *devp = finddevice("/plb/ebc/nor_flash@0");
680cdf50a7SSolomon Peachy if (!devp)
690cdf50a7SSolomon Peachy fatal("Can't find FDT node for nor_flash!??");
700cdf50a7SSolomon Peachy
710cdf50a7SSolomon Peachy printf("Fixing devtree for 4M Flash\n");
720cdf50a7SSolomon Peachy
73*1fd02f66SJulia Lawall /* First fix up the base address */
740cdf50a7SSolomon Peachy getprop(devp, "reg", regs, sizeof(regs));
750cdf50a7SSolomon Peachy regs[0] = 0;
760cdf50a7SSolomon Peachy regs[1] = 0xffc00000;
770cdf50a7SSolomon Peachy regs[2] = 0x00400000;
780cdf50a7SSolomon Peachy setprop(devp, "reg", regs, sizeof(regs));
790cdf50a7SSolomon Peachy
800cdf50a7SSolomon Peachy /* Then the offsets */
810cdf50a7SSolomon Peachy devp = finddevice("/plb/ebc/nor_flash@0/partition@0");
820cdf50a7SSolomon Peachy if (!devp)
830cdf50a7SSolomon Peachy fatal("Can't find FDT node for partition@0");
840cdf50a7SSolomon Peachy getprop(devp, "reg", regs, 2*sizeof(u32));
850cdf50a7SSolomon Peachy regs[0] -= 0x400000;
860cdf50a7SSolomon Peachy setprop(devp, "reg", regs, 2*sizeof(u32));
870cdf50a7SSolomon Peachy
880cdf50a7SSolomon Peachy devp = finddevice("/plb/ebc/nor_flash@0/partition@1");
890cdf50a7SSolomon Peachy if (!devp)
900cdf50a7SSolomon Peachy fatal("Can't find FDT node for partition@1");
910cdf50a7SSolomon Peachy getprop(devp, "reg", regs, 2*sizeof(u32));
920cdf50a7SSolomon Peachy regs[0] -= 0x400000;
930cdf50a7SSolomon Peachy setprop(devp, "reg", regs, 2*sizeof(u32));
940cdf50a7SSolomon Peachy
950cdf50a7SSolomon Peachy devp = finddevice("/plb/ebc/nor_flash@0/partition@2");
960cdf50a7SSolomon Peachy if (!devp)
970cdf50a7SSolomon Peachy fatal("Can't find FDT node for partition@2");
980cdf50a7SSolomon Peachy getprop(devp, "reg", regs, 2*sizeof(u32));
990cdf50a7SSolomon Peachy regs[0] -= 0x400000;
1000cdf50a7SSolomon Peachy setprop(devp, "reg", regs, 2*sizeof(u32));
1010cdf50a7SSolomon Peachy
1020cdf50a7SSolomon Peachy devp = finddevice("/plb/ebc/nor_flash@0/partition@3");
1030cdf50a7SSolomon Peachy if (!devp)
1040cdf50a7SSolomon Peachy fatal("Can't find FDT node for partition@3");
1050cdf50a7SSolomon Peachy getprop(devp, "reg", regs, 2*sizeof(u32));
1060cdf50a7SSolomon Peachy regs[0] -= 0x400000;
1070cdf50a7SSolomon Peachy setprop(devp, "reg", regs, 2*sizeof(u32));
1080cdf50a7SSolomon Peachy
1090cdf50a7SSolomon Peachy devp = finddevice("/plb/ebc/nor_flash@0/partition@4");
1100cdf50a7SSolomon Peachy if (!devp)
1110cdf50a7SSolomon Peachy fatal("Can't find FDT node for partition@4");
1120cdf50a7SSolomon Peachy getprop(devp, "reg", regs, 2*sizeof(u32));
1130cdf50a7SSolomon Peachy regs[0] -= 0x400000;
1140cdf50a7SSolomon Peachy setprop(devp, "reg", regs, 2*sizeof(u32));
1150cdf50a7SSolomon Peachy
1160cdf50a7SSolomon Peachy devp = finddevice("/plb/ebc/nor_flash@0/partition@6");
1170cdf50a7SSolomon Peachy if (!devp)
1180cdf50a7SSolomon Peachy fatal("Can't find FDT node for partition@6");
1190cdf50a7SSolomon Peachy getprop(devp, "reg", regs, 2*sizeof(u32));
1200cdf50a7SSolomon Peachy regs[0] -= 0x400000;
1210cdf50a7SSolomon Peachy setprop(devp, "reg", regs, 2*sizeof(u32));
1220cdf50a7SSolomon Peachy
1230cdf50a7SSolomon Peachy /* Delete the FeatFS node */
1240cdf50a7SSolomon Peachy devp = finddevice("/plb/ebc/nor_flash@0/partition@5");
1250cdf50a7SSolomon Peachy if (!devp)
1260cdf50a7SSolomon Peachy fatal("Can't find FDT node for partition@5");
1270cdf50a7SSolomon Peachy del_node(devp);
1280cdf50a7SSolomon Peachy }
1290cdf50a7SSolomon Peachy }
1300cdf50a7SSolomon Peachy
platform_init(unsigned long r3,unsigned long r4,unsigned long r5,unsigned long r6,unsigned long r7)1310cdf50a7SSolomon Peachy void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
1320cdf50a7SSolomon Peachy unsigned long r6, unsigned long r7)
1330cdf50a7SSolomon Peachy {
1340cdf50a7SSolomon Peachy CUBOOT_INIT();
1350cdf50a7SSolomon Peachy platform_ops.fixups = hotfoot_fixups;
1360cdf50a7SSolomon Peachy platform_ops.exit = ibm40x_dbcr_reset;
1370cdf50a7SSolomon Peachy fdt_init(_dtb_start);
1380cdf50a7SSolomon Peachy serial_console_init();
1390cdf50a7SSolomon Peachy }
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