1 // SPDX-License-Identifier: GPL-2.0-only
3  * Old U-boot compatibility for PowerQUICC II
15 #include "fsl-soc.h"
21 static bd_t bd;  variable
40 /* Different versions of u-boot put the BCSR in different places, and
44  * For any node defined as compatible with fsl,pq2-localbus,
45  * #address/#size must be 2/1 for the localbus, and 1/1 for the parent bus.
58 	if (!bus_node || !dt_is_compatible(bus_node, "fsl,pq2-localbus"))  in update_cs_ranges()
103 		         option | ~(cs_ranges_buf[i].size - 1));  in update_cs_ranges()
113 /* Older u-boots don't set PCI up properly.  Update the hardware to match
114  * the device tree.  The prefetch mem region and non-prefetch mem region
117  * 32-bit PCI is supported.  All three region types (prefetchable mem,
118  * non-prefetchable mem, and I/O) must be present.
131 	if (!node || !dt_is_compatible(node, "fsl,pq2-pci"))  in fixup_pci()
171 	if (mem->size[1] != mmio->size[1])  in fixup_pci()
173 	if (mem->size[1] & (mem->size[1] - 1))  in fixup_pci()
175 	if (io->size[1] & (io->size[1] - 1))  in fixup_pci()
178 	if (mem->phys_addr + mem->size[1] == mmio->phys_addr)  in fixup_pci()
180 	else if (mmio->phys_addr + mmio->size[1] == mem->phys_addr)  in fixup_pci()
185 	out_be32(&pci_regs[1][0], mem_base->phys_addr | 1);  in fixup_pci()
186 	out_be32(&pci_regs[2][0], ~(mem->size[1] + mmio->size[1] - 1));  in fixup_pci()
188 	out_be32(&pci_regs[1][1], io->phys_addr | 1);  in fixup_pci()
189 	out_be32(&pci_regs[2][1], ~(io->size[1] - 1));  in fixup_pci()
191 	out_le32(&pci_regs[0][0], mem->pci_addr[1] >> 12);  in fixup_pci()
192 	out_le32(&pci_regs[0][2], mem->phys_addr >> 12);  in fixup_pci()
193 	out_le32(&pci_regs[0][4], (~(mem->size[1] - 1) >> 12) | 0xa0000000);  in fixup_pci()
195 	out_le32(&pci_regs[0][6], mmio->pci_addr[1] >> 12);  in fixup_pci()
196 	out_le32(&pci_regs[0][8], mmio->phys_addr >> 12);  in fixup_pci()
197 	out_le32(&pci_regs[0][10], (~(mmio->size[1] - 1) >> 12) | 0x80000000);  in fixup_pci()
199 	out_le32(&pci_regs[0][12], io->pci_addr[1] >> 12);  in fixup_pci()
200 	out_le32(&pci_regs[0][14], io->phys_addr >> 12);  in fixup_pci()
201 	out_le32(&pci_regs[0][16], (~(io->size[1] - 1) >> 12) | 0xc0000000);  in fixup_pci()
207 	mem_pow2 = 1 << (__ilog2_u32(bd.bi_memsize - 1) + 1);  in fixup_pci()
208 	mem_mask = ~(mem_pow2 - 1) >> 12;  in fixup_pci()
235 	printf("Bad PCI node -- using existing firmware setup.\r\n");  in fixup_pci()
239 	printf("Unsupported PCI node -- using existing firmware setup.\r\n");  in fixup_pci()
246 	dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);  in pq2_platform_fixups()
247 	dt_fixup_mac_addresses(bd.bi_enetaddr, bd.bi_enet1addr);  in pq2_platform_fixups()
248 	dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 4, bd.bi_busfreq);  in pq2_platform_fixups()
252 		setprop(node, "clock-frequency", &bd.bi_cpmfreq, 4);  in pq2_platform_fixups()
256 		setprop(node, "clock-frequency",  &bd.bi_brgfreq, 4);  in pq2_platform_fixups()