diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/powerpc/boot/cuboot-pq2.c')
-rw-r--r-- | ANDROID_3.4.5/arch/powerpc/boot/cuboot-pq2.c | 272 |
1 files changed, 0 insertions, 272 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/boot/cuboot-pq2.c b/ANDROID_3.4.5/arch/powerpc/boot/cuboot-pq2.c deleted file mode 100644 index 9c7d1342..00000000 --- a/ANDROID_3.4.5/arch/powerpc/boot/cuboot-pq2.c +++ /dev/null @@ -1,272 +0,0 @@ -/* - * Old U-boot compatibility for PowerQUICC II - * (a.k.a. 82xx with CPM, not the 8240 family of chips) - * - * Author: Scott Wood <scottwood@freescale.com> - * - * Copyright (c) 2007 Freescale Semiconductor, Inc. - * - * 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 "cuboot.h" -#include "io.h" -#include "fsl-soc.h" - -#define TARGET_CPM2 -#define TARGET_HAS_ETH1 -#include "ppcboot.h" - -static bd_t bd; - -struct cs_range { - u32 csnum; - u32 base; /* must be zero */ - u32 addr; - u32 size; -}; - -struct pci_range { - u32 flags; - u32 pci_addr[2]; - u32 phys_addr; - u32 size[2]; -}; - -struct cs_range cs_ranges_buf[MAX_PROP_LEN / sizeof(struct cs_range)]; -struct pci_range pci_ranges_buf[MAX_PROP_LEN / sizeof(struct pci_range)]; - -/* Different versions of u-boot put the BCSR in different places, and - * some don't set up the PCI PIC at all, so we assume the device tree is - * sane and update the BRx registers appropriately. - * - * For any node defined as compatible with fsl,pq2-localbus, - * #address/#size must be 2/1 for the localbus, and 1/1 for the parent bus. - * Ranges must be for whole chip selects. - */ -static void update_cs_ranges(void) -{ - void *bus_node, *parent_node; - u32 *ctrl_addr; - unsigned long ctrl_size; - u32 naddr, nsize; - int len; - int i; - - bus_node = finddevice("/localbus"); - if (!bus_node || !dt_is_compatible(bus_node, "fsl,pq2-localbus")) - return; - - dt_get_reg_format(bus_node, &naddr, &nsize); - if (naddr != 2 || nsize != 1) - goto err; - - parent_node = get_parent(bus_node); - if (!parent_node) - goto err; - - dt_get_reg_format(parent_node, &naddr, &nsize); - if (naddr != 1 || nsize != 1) - goto err; - - if (!dt_xlate_reg(bus_node, 0, (unsigned long *)&ctrl_addr, - &ctrl_size)) - goto err; - - len = getprop(bus_node, "ranges", cs_ranges_buf, sizeof(cs_ranges_buf)); - - for (i = 0; i < len / sizeof(struct cs_range); i++) { - u32 base, option; - int cs = cs_ranges_buf[i].csnum; - if (cs >= ctrl_size / 8) - goto err; - - if (cs_ranges_buf[i].base != 0) - goto err; - - base = in_be32(&ctrl_addr[cs * 2]); - - /* If CS is already valid, use the existing flags. - * Otherwise, guess a sane default. - */ - if (base & 1) { - base &= 0x7fff; - option = in_be32(&ctrl_addr[cs * 2 + 1]) & 0x7fff; - } else { - base = 0x1801; - option = 0x10; - } - - out_be32(&ctrl_addr[cs * 2], 0); - out_be32(&ctrl_addr[cs * 2 + 1], - option | ~(cs_ranges_buf[i].size - 1)); - out_be32(&ctrl_addr[cs * 2], base | cs_ranges_buf[i].addr); - } - - return; - -err: - printf("Bad /localbus node\r\n"); -} - -/* Older u-boots don't set PCI up properly. Update the hardware to match - * the device tree. The prefetch mem region and non-prefetch mem region - * must be contiguous in the host bus. As required by the PCI binding, - * PCI #addr/#size must be 3/2. The parent bus must be 1/1. Only - * 32-bit PCI is supported. All three region types (prefetchable mem, - * non-prefetchable mem, and I/O) must be present. - */ -static void fixup_pci(void) -{ - struct pci_range *mem = NULL, *mmio = NULL, - *io = NULL, *mem_base = NULL; - u32 *pci_regs[3]; - u8 *soc_regs; - int i, len; - void *node, *parent_node; - u32 naddr, nsize, mem_pow2, mem_mask; - - node = finddevice("/pci"); - if (!node || !dt_is_compatible(node, "fsl,pq2-pci")) - return; - - for (i = 0; i < 3; i++) - if (!dt_xlate_reg(node, i, - (unsigned long *)&pci_regs[i], NULL)) - goto err; - - soc_regs = (u8 *)fsl_get_immr(); - if (!soc_regs) - goto unhandled; - - dt_get_reg_format(node, &naddr, &nsize); - if (naddr != 3 || nsize != 2) - goto err; - - parent_node = get_parent(node); - if (!parent_node) - goto err; - - dt_get_reg_format(parent_node, &naddr, &nsize); - if (naddr != 1 || nsize != 1) - goto unhandled; - - len = getprop(node, "ranges", pci_ranges_buf, - sizeof(pci_ranges_buf)); - - for (i = 0; i < len / sizeof(struct pci_range); i++) { - u32 flags = pci_ranges_buf[i].flags & 0x43000000; - - if (flags == 0x42000000) - mem = &pci_ranges_buf[i]; - else if (flags == 0x02000000) - mmio = &pci_ranges_buf[i]; - else if (flags == 0x01000000) - io = &pci_ranges_buf[i]; - } - - if (!mem || !mmio || !io) - goto unhandled; - if (mem->size[1] != mmio->size[1]) - goto unhandled; - if (mem->size[1] & (mem->size[1] - 1)) - goto unhandled; - if (io->size[1] & (io->size[1] - 1)) - goto unhandled; - - if (mem->phys_addr + mem->size[1] == mmio->phys_addr) - mem_base = mem; - else if (mmio->phys_addr + mmio->size[1] == mem->phys_addr) - mem_base = mmio; - else - goto unhandled; - - out_be32(&pci_regs[1][0], mem_base->phys_addr | 1); - out_be32(&pci_regs[2][0], ~(mem->size[1] + mmio->size[1] - 1)); - - out_be32(&pci_regs[1][1], io->phys_addr | 1); - out_be32(&pci_regs[2][1], ~(io->size[1] - 1)); - - out_le32(&pci_regs[0][0], mem->pci_addr[1] >> 12); - out_le32(&pci_regs[0][2], mem->phys_addr >> 12); - out_le32(&pci_regs[0][4], (~(mem->size[1] - 1) >> 12) | 0xa0000000); - - out_le32(&pci_regs[0][6], mmio->pci_addr[1] >> 12); - out_le32(&pci_regs[0][8], mmio->phys_addr >> 12); - out_le32(&pci_regs[0][10], (~(mmio->size[1] - 1) >> 12) | 0x80000000); - - out_le32(&pci_regs[0][12], io->pci_addr[1] >> 12); - out_le32(&pci_regs[0][14], io->phys_addr >> 12); - out_le32(&pci_regs[0][16], (~(io->size[1] - 1) >> 12) | 0xc0000000); - - /* Inbound translation */ - out_le32(&pci_regs[0][58], 0); - out_le32(&pci_regs[0][60], 0); - - mem_pow2 = 1 << (__ilog2_u32(bd.bi_memsize - 1) + 1); - mem_mask = ~(mem_pow2 - 1) >> 12; - out_le32(&pci_regs[0][62], 0xa0000000 | mem_mask); - - /* If PCI is disabled, drive RST high to enable. */ - if (!(in_le32(&pci_regs[0][32]) & 1)) { - /* Tpvrh (Power valid to RST# high) 100 ms */ - udelay(100000); - - out_le32(&pci_regs[0][32], 1); - - /* Trhfa (RST# high to first cfg access) 2^25 clocks */ - udelay(1020000); - } - - /* Enable bus master and memory access */ - out_le32(&pci_regs[0][64], 0x80000004); - out_le32(&pci_regs[0][65], in_le32(&pci_regs[0][65]) | 6); - - /* Park the bus on PCI, and elevate PCI's arbitration priority, - * as required by section 9.6 of the user's manual. - */ - out_8(&soc_regs[0x10028], 3); - out_be32((u32 *)&soc_regs[0x1002c], 0x01236745); - - return; - -err: - printf("Bad PCI node -- using existing firmware setup.\r\n"); - return; - -unhandled: - printf("Unsupported PCI node -- using existing firmware setup.\r\n"); -} - -static void pq2_platform_fixups(void) -{ - void *node; - - dt_fixup_memory(bd.bi_memstart, bd.bi_memsize); - dt_fixup_mac_addresses(bd.bi_enetaddr, bd.bi_enet1addr); - dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 4, bd.bi_busfreq); - - node = finddevice("/soc/cpm"); - if (node) - setprop(node, "clock-frequency", &bd.bi_cpmfreq, 4); - - node = finddevice("/soc/cpm/brg"); - if (node) - setprop(node, "clock-frequency", &bd.bi_brgfreq, 4); - - update_cs_ranges(); - fixup_pci(); -} - -void platform_init(unsigned long r3, unsigned long r4, unsigned long r5, - unsigned long r6, unsigned long r7) -{ - CUBOOT_INIT(); - fdt_init(_dtb_start); - serial_console_init(); - platform_ops.fixups = pq2_platform_fixups; -} |