From 871480933a1c28f8a9fed4c4d34d06c439a7a422 Mon Sep 17 00:00:00 2001 From: Srikant Patnaik Date: Sun, 11 Jan 2015 12:28:04 +0530 Subject: Moved, renamed, and deleted files The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure. --- .../arch/powerpc/platforms/powermac/bootx_init.c | 595 --------------------- 1 file changed, 595 deletions(-) delete mode 100644 ANDROID_3.4.5/arch/powerpc/platforms/powermac/bootx_init.c (limited to 'ANDROID_3.4.5/arch/powerpc/platforms/powermac/bootx_init.c') diff --git a/ANDROID_3.4.5/arch/powerpc/platforms/powermac/bootx_init.c b/ANDROID_3.4.5/arch/powerpc/platforms/powermac/bootx_init.c deleted file mode 100644 index 3e91ef53..00000000 --- a/ANDROID_3.4.5/arch/powerpc/platforms/powermac/bootx_init.c +++ /dev/null @@ -1,595 +0,0 @@ -/* - * Early boot support code for BootX bootloader - * - * Copyright (C) 2005 Ben. Herrenschmidt (benh@kernel.crashing.org) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#undef DEBUG -#define SET_BOOT_BAT - -#ifdef DEBUG -#define DBG(fmt...) do { bootx_printf(fmt); } while(0) -#else -#define DBG(fmt...) do { } while(0) -#endif - -extern void __start(unsigned long r3, unsigned long r4, unsigned long r5); - -static unsigned long __initdata bootx_dt_strbase; -static unsigned long __initdata bootx_dt_strend; -static unsigned long __initdata bootx_node_chosen; -static boot_infos_t * __initdata bootx_info; -static char __initdata bootx_disp_path[256]; - -/* Is boot-info compatible ? */ -#define BOOT_INFO_IS_COMPATIBLE(bi) \ - ((bi)->compatible_version <= BOOT_INFO_VERSION) -#define BOOT_INFO_IS_V2_COMPATIBLE(bi) ((bi)->version >= 2) -#define BOOT_INFO_IS_V4_COMPATIBLE(bi) ((bi)->version >= 4) - -#ifdef CONFIG_BOOTX_TEXT -static void __init bootx_printf(const char *format, ...) -{ - const char *p, *q, *s; - va_list args; - unsigned long v; - - va_start(args, format); - for (p = format; *p != 0; p = q) { - for (q = p; *q != 0 && *q != '\n' && *q != '%'; ++q) - ; - if (q > p) - btext_drawtext(p, q - p); - if (*q == 0) - break; - if (*q == '\n') { - ++q; - btext_flushline(); - btext_drawstring("\r\n"); - btext_flushline(); - continue; - } - ++q; - if (*q == 0) - break; - switch (*q) { - case 's': - ++q; - s = va_arg(args, const char *); - if (s == NULL) - s = ""; - btext_drawstring(s); - break; - case 'x': - ++q; - v = va_arg(args, unsigned long); - btext_drawhex(v); - break; - } - } -} -#else /* CONFIG_BOOTX_TEXT */ -static void __init bootx_printf(const char *format, ...) {} -#endif /* CONFIG_BOOTX_TEXT */ - -static void * __init bootx_early_getprop(unsigned long base, - unsigned long node, - char *prop) -{ - struct bootx_dt_node *np = (struct bootx_dt_node *)(base + node); - u32 *ppp = &np->properties; - - while(*ppp) { - struct bootx_dt_prop *pp = - (struct bootx_dt_prop *)(base + *ppp); - - if (strcmp((char *)((unsigned long)pp->name + base), - prop) == 0) { - return (void *)((unsigned long)pp->value + base); - } - ppp = &pp->next; - } - return NULL; -} - -#define dt_push_token(token, mem) \ - do { \ - *(mem) = _ALIGN_UP(*(mem),4); \ - *((u32 *)*(mem)) = token; \ - *(mem) += 4; \ - } while(0) - -static unsigned long __init bootx_dt_find_string(char *str) -{ - char *s, *os; - - s = os = (char *)bootx_dt_strbase; - s += 4; - while (s < (char *)bootx_dt_strend) { - if (strcmp(s, str) == 0) - return s - os; - s += strlen(s) + 1; - } - return 0; -} - -static void __init bootx_dt_add_prop(char *name, void *data, int size, - unsigned long *mem_end) -{ - unsigned long soff = bootx_dt_find_string(name); - if (data == NULL) - size = 0; - if (soff == 0) { - bootx_printf("WARNING: Can't find string index for <%s>\n", - name); - return; - } - if (size > 0x20000) { - bootx_printf("WARNING: ignoring large property "); - bootx_printf("%s length 0x%x\n", name, size); - return; - } - dt_push_token(OF_DT_PROP, mem_end); - dt_push_token(size, mem_end); - dt_push_token(soff, mem_end); - - /* push property content */ - if (size && data) { - memcpy((void *)*mem_end, data, size); - *mem_end = _ALIGN_UP(*mem_end + size, 4); - } -} - -static void __init bootx_add_chosen_props(unsigned long base, - unsigned long *mem_end) -{ - u32 val; - - bootx_dt_add_prop("linux,bootx", NULL, 0, mem_end); - - if (bootx_info->kernelParamsOffset) { - char *args = (char *)((unsigned long)bootx_info) + - bootx_info->kernelParamsOffset; - bootx_dt_add_prop("bootargs", args, strlen(args) + 1, mem_end); - } - if (bootx_info->ramDisk) { - val = ((unsigned long)bootx_info) + bootx_info->ramDisk; - bootx_dt_add_prop("linux,initrd-start", &val, 4, mem_end); - val += bootx_info->ramDiskSize; - bootx_dt_add_prop("linux,initrd-end", &val, 4, mem_end); - } - if (strlen(bootx_disp_path)) - bootx_dt_add_prop("linux,stdout-path", bootx_disp_path, - strlen(bootx_disp_path) + 1, mem_end); -} - -static void __init bootx_add_display_props(unsigned long base, - unsigned long *mem_end, - int has_real_node) -{ - boot_infos_t *bi = bootx_info; - u32 tmp; - - if (has_real_node) { - bootx_dt_add_prop("linux,boot-display", NULL, 0, mem_end); - bootx_dt_add_prop("linux,opened", NULL, 0, mem_end); - } else - bootx_dt_add_prop("linux,bootx-noscreen", NULL, 0, mem_end); - - tmp = bi->dispDeviceDepth; - bootx_dt_add_prop("linux,bootx-depth", &tmp, 4, mem_end); - tmp = bi->dispDeviceRect[2] - bi->dispDeviceRect[0]; - bootx_dt_add_prop("linux,bootx-width", &tmp, 4, mem_end); - tmp = bi->dispDeviceRect[3] - bi->dispDeviceRect[1]; - bootx_dt_add_prop("linux,bootx-height", &tmp, 4, mem_end); - tmp = bi->dispDeviceRowBytes; - bootx_dt_add_prop("linux,bootx-linebytes", &tmp, 4, mem_end); - tmp = (u32)bi->dispDeviceBase; - if (tmp == 0) - tmp = (u32)bi->logicalDisplayBase; - tmp += bi->dispDeviceRect[1] * bi->dispDeviceRowBytes; - tmp += bi->dispDeviceRect[0] * ((bi->dispDeviceDepth + 7) / 8); - bootx_dt_add_prop("linux,bootx-addr", &tmp, 4, mem_end); -} - -static void __init bootx_dt_add_string(char *s, unsigned long *mem_end) -{ - unsigned int l = strlen(s) + 1; - memcpy((void *)*mem_end, s, l); - bootx_dt_strend = *mem_end = *mem_end + l; -} - -static void __init bootx_scan_dt_build_strings(unsigned long base, - unsigned long node, - unsigned long *mem_end) -{ - struct bootx_dt_node *np = (struct bootx_dt_node *)(base + node); - u32 *cpp, *ppp = &np->properties; - unsigned long soff; - char *namep; - - /* Keep refs to known nodes */ - namep = np->full_name ? (char *)(base + np->full_name) : NULL; - if (namep == NULL) { - bootx_printf("Node without a full name !\n"); - namep = ""; - } - DBG("* strings: %s\n", namep); - - if (!strcmp(namep, "/chosen")) { - DBG(" detected /chosen ! adding properties names !\n"); - bootx_dt_add_string("linux,bootx", mem_end); - bootx_dt_add_string("linux,stdout-path", mem_end); - bootx_dt_add_string("linux,initrd-start", mem_end); - bootx_dt_add_string("linux,initrd-end", mem_end); - bootx_dt_add_string("bootargs", mem_end); - bootx_node_chosen = node; - } - if (node == bootx_info->dispDeviceRegEntryOffset) { - DBG(" detected display ! adding properties names !\n"); - bootx_dt_add_string("linux,boot-display", mem_end); - bootx_dt_add_string("linux,opened", mem_end); - strncpy(bootx_disp_path, namep, 255); - } - - /* get and store all property names */ - while (*ppp) { - struct bootx_dt_prop *pp = - (struct bootx_dt_prop *)(base + *ppp); - - namep = pp->name ? (char *)(base + pp->name) : NULL; - if (namep == NULL || strcmp(namep, "name") == 0) - goto next; - /* get/create string entry */ - soff = bootx_dt_find_string(namep); - if (soff == 0) - bootx_dt_add_string(namep, mem_end); - next: - ppp = &pp->next; - } - - /* do all our children */ - cpp = &np->child; - while(*cpp) { - np = (struct bootx_dt_node *)(base + *cpp); - bootx_scan_dt_build_strings(base, *cpp, mem_end); - cpp = &np->sibling; - } -} - -static void __init bootx_scan_dt_build_struct(unsigned long base, - unsigned long node, - unsigned long *mem_end) -{ - struct bootx_dt_node *np = (struct bootx_dt_node *)(base + node); - u32 *cpp, *ppp = &np->properties; - char *namep, *p, *ep, *lp; - int l; - - dt_push_token(OF_DT_BEGIN_NODE, mem_end); - - /* get the node's full name */ - namep = np->full_name ? (char *)(base + np->full_name) : NULL; - if (namep == NULL) - namep = ""; - l = strlen(namep); - - DBG("* struct: %s\n", namep); - - /* Fixup an Apple bug where they have bogus \0 chars in the - * middle of the path in some properties, and extract - * the unit name (everything after the last '/'). - */ - memcpy((void *)*mem_end, namep, l + 1); - namep = (char *)*mem_end; - for (lp = p = namep, ep = namep + l; p < ep; p++) { - if (*p == '/') - lp = namep; - else if (*p != 0) - *lp++ = *p; - } - *lp = 0; - *mem_end = _ALIGN_UP((unsigned long)lp + 1, 4); - - /* get and store all properties */ - while (*ppp) { - struct bootx_dt_prop *pp = - (struct bootx_dt_prop *)(base + *ppp); - - namep = pp->name ? (char *)(base + pp->name) : NULL; - /* Skip "name" */ - if (namep == NULL || !strcmp(namep, "name")) - goto next; - /* Skip "bootargs" in /chosen too as we replace it */ - if (node == bootx_node_chosen && !strcmp(namep, "bootargs")) - goto next; - - /* push property head */ - bootx_dt_add_prop(namep, - pp->value ? (void *)(base + pp->value): NULL, - pp->length, mem_end); - next: - ppp = &pp->next; - } - - if (node == bootx_node_chosen) { - bootx_add_chosen_props(base, mem_end); - if (bootx_info->dispDeviceRegEntryOffset == 0) - bootx_add_display_props(base, mem_end, 0); - } - else if (node == bootx_info->dispDeviceRegEntryOffset) - bootx_add_display_props(base, mem_end, 1); - - /* do all our children */ - cpp = &np->child; - while(*cpp) { - np = (struct bootx_dt_node *)(base + *cpp); - bootx_scan_dt_build_struct(base, *cpp, mem_end); - cpp = &np->sibling; - } - - dt_push_token(OF_DT_END_NODE, mem_end); -} - -static unsigned long __init bootx_flatten_dt(unsigned long start) -{ - boot_infos_t *bi = bootx_info; - unsigned long mem_start, mem_end; - struct boot_param_header *hdr; - unsigned long base; - u64 *rsvmap; - - /* Start using memory after the big blob passed by BootX, get - * some space for the header - */ - mem_start = mem_end = _ALIGN_UP(((unsigned long)bi) + start, 4); - DBG("Boot params header at: %x\n", mem_start); - hdr = (struct boot_param_header *)mem_start; - mem_end += sizeof(struct boot_param_header); - rsvmap = (u64 *)(_ALIGN_UP(mem_end, 8)); - hdr->off_mem_rsvmap = ((unsigned long)rsvmap) - mem_start; - mem_end = ((unsigned long)rsvmap) + 8 * sizeof(u64); - - /* Get base of tree */ - base = ((unsigned long)bi) + bi->deviceTreeOffset; - - /* Build string array */ - DBG("Building string array at: %x\n", mem_end); - DBG("Device Tree Base=%x\n", base); - bootx_dt_strbase = mem_end; - mem_end += 4; - bootx_dt_strend = mem_end; - bootx_scan_dt_build_strings(base, 4, &mem_end); - /* Add some strings */ - bootx_dt_add_string("linux,bootx-noscreen", &mem_end); - bootx_dt_add_string("linux,bootx-depth", &mem_end); - bootx_dt_add_string("linux,bootx-width", &mem_end); - bootx_dt_add_string("linux,bootx-height", &mem_end); - bootx_dt_add_string("linux,bootx-linebytes", &mem_end); - bootx_dt_add_string("linux,bootx-addr", &mem_end); - /* Wrap up strings */ - hdr->off_dt_strings = bootx_dt_strbase - mem_start; - hdr->dt_strings_size = bootx_dt_strend - bootx_dt_strbase; - - /* Build structure */ - mem_end = _ALIGN(mem_end, 16); - DBG("Building device tree structure at: %x\n", mem_end); - hdr->off_dt_struct = mem_end - mem_start; - bootx_scan_dt_build_struct(base, 4, &mem_end); - dt_push_token(OF_DT_END, &mem_end); - - /* Finish header */ - hdr->boot_cpuid_phys = 0; - hdr->magic = OF_DT_HEADER; - hdr->totalsize = mem_end - mem_start; - hdr->version = OF_DT_VERSION; - /* Version 16 is not backward compatible */ - hdr->last_comp_version = 0x10; - - /* Reserve the whole thing and copy the reserve map in, we - * also bump mem_reserve_cnt to cause further reservations to - * fail since it's too late. - */ - mem_end = _ALIGN(mem_end, PAGE_SIZE); - DBG("End of boot params: %x\n", mem_end); - rsvmap[0] = mem_start; - rsvmap[1] = mem_end; - if (bootx_info->ramDisk) { - rsvmap[2] = ((unsigned long)bootx_info) + bootx_info->ramDisk; - rsvmap[3] = rsvmap[2] + bootx_info->ramDiskSize; - rsvmap[4] = 0; - rsvmap[5] = 0; - } else { - rsvmap[2] = 0; - rsvmap[3] = 0; - } - - return (unsigned long)hdr; -} - - -#ifdef CONFIG_BOOTX_TEXT -static void __init btext_welcome(boot_infos_t *bi) -{ - unsigned long flags; - unsigned long pvr; - - bootx_printf("Welcome to Linux, kernel " UTS_RELEASE "\n"); - bootx_printf("\nlinked at : 0x%x", KERNELBASE); - bootx_printf("\nframe buffer at : 0x%x", bi->dispDeviceBase); - bootx_printf(" (phys), 0x%x", bi->logicalDisplayBase); - bootx_printf(" (log)"); - bootx_printf("\nklimit : 0x%x",(unsigned long)klimit); - bootx_printf("\nboot_info at : 0x%x", bi); - __asm__ __volatile__ ("mfmsr %0" : "=r" (flags)); - bootx_printf("\nMSR : 0x%x", flags); - __asm__ __volatile__ ("mfspr %0, 287" : "=r" (pvr)); - bootx_printf("\nPVR : 0x%x", pvr); - pvr >>= 16; - if (pvr > 1) { - __asm__ __volatile__ ("mfspr %0, 1008" : "=r" (flags)); - bootx_printf("\nHID0 : 0x%x", flags); - } - if (pvr == 8 || pvr == 12 || pvr == 0x800c) { - __asm__ __volatile__ ("mfspr %0, 1019" : "=r" (flags)); - bootx_printf("\nICTC : 0x%x", flags); - } -#ifdef DEBUG - bootx_printf("\n\n"); - bootx_printf("bi->deviceTreeOffset : 0x%x\n", - bi->deviceTreeOffset); - bootx_printf("bi->deviceTreeSize : 0x%x\n", - bi->deviceTreeSize); -#endif - bootx_printf("\n\n"); -} -#endif /* CONFIG_BOOTX_TEXT */ - -void __init bootx_init(unsigned long r3, unsigned long r4) -{ - boot_infos_t *bi = (boot_infos_t *) r4; - unsigned long hdr; - unsigned long space; - unsigned long ptr, x; - char *model; - unsigned long offset = reloc_offset(); - - reloc_got2(offset); - - bootx_info = bi; - - /* We haven't cleared any bss at this point, make sure - * what we need is initialized - */ - bootx_dt_strbase = bootx_dt_strend = 0; - bootx_node_chosen = 0; - bootx_disp_path[0] = 0; - - if (!BOOT_INFO_IS_V2_COMPATIBLE(bi)) - bi->logicalDisplayBase = bi->dispDeviceBase; - - /* Fixup depth 16 -> 15 as that's what MacOS calls 16bpp */ - if (bi->dispDeviceDepth == 16) - bi->dispDeviceDepth = 15; - - -#ifdef CONFIG_BOOTX_TEXT - ptr = (unsigned long)bi->logicalDisplayBase; - ptr += bi->dispDeviceRect[1] * bi->dispDeviceRowBytes; - ptr += bi->dispDeviceRect[0] * ((bi->dispDeviceDepth + 7) / 8); - btext_setup_display(bi->dispDeviceRect[2] - bi->dispDeviceRect[0], - bi->dispDeviceRect[3] - bi->dispDeviceRect[1], - bi->dispDeviceDepth, bi->dispDeviceRowBytes, - (unsigned long)bi->logicalDisplayBase); - btext_clearscreen(); - btext_flushscreen(); -#endif /* CONFIG_BOOTX_TEXT */ - - /* - * Test if boot-info is compatible. Done only in config - * CONFIG_BOOTX_TEXT since there is nothing much we can do - * with an incompatible version, except display a message - * and eventually hang the processor... - * - * I'll try to keep enough of boot-info compatible in the - * future to always allow display of this message; - */ - if (!BOOT_INFO_IS_COMPATIBLE(bi)) { - bootx_printf(" !!! WARNING - Incompatible version" - " of BootX !!!\n\n\n"); - for (;;) - ; - } - if (bi->architecture != BOOT_ARCH_PCI) { - bootx_printf(" !!! WARNING - Usupported machine" - " architecture !\n"); - for (;;) - ; - } - -#ifdef CONFIG_BOOTX_TEXT - btext_welcome(bi); -#endif - - /* New BootX enters kernel with MMU off, i/os are not allowed - * here. This hack will have been done by the boostrap anyway. - */ - if (bi->version < 4) { - /* - * XXX If this is an iMac, turn off the USB controller. - */ - model = (char *) bootx_early_getprop(r4 + bi->deviceTreeOffset, - 4, "model"); - if (model - && (strcmp(model, "iMac,1") == 0 - || strcmp(model, "PowerMac1,1") == 0)) { - bootx_printf("iMac,1 detected, shutting down USB\n"); - out_le32((unsigned __iomem *)0x80880008, 1); /* XXX */ - } - } - - /* Get a pointer that points above the device tree, args, ramdisk, - * etc... to use for generating the flattened tree - */ - if (bi->version < 5) { - space = bi->deviceTreeOffset + bi->deviceTreeSize; - if (bi->ramDisk >= space) - space = bi->ramDisk + bi->ramDiskSize; - } else - space = bi->totalParamsSize; - - bootx_printf("Total space used by parameters & ramdisk: 0x%x\n", space); - - /* New BootX will have flushed all TLBs and enters kernel with - * MMU switched OFF, so this should not be useful anymore. - */ - if (bi->version < 4) { - bootx_printf("Touching pages...\n"); - - /* - * Touch each page to make sure the PTEs for them - * are in the hash table - the aim is to try to avoid - * getting DSI exceptions while copying the kernel image. - */ - for (ptr = ((unsigned long) &_stext) & PAGE_MASK; - ptr < (unsigned long)bi + space; ptr += PAGE_SIZE) - x = *(volatile unsigned long *)ptr; - } - - /* Ok, now we need to generate a flattened device-tree to pass - * to the kernel - */ - bootx_printf("Preparing boot params...\n"); - - hdr = bootx_flatten_dt(space); - -#ifdef CONFIG_BOOTX_TEXT -#ifdef SET_BOOT_BAT - bootx_printf("Preparing BAT...\n"); - btext_prepare_BAT(); -#else - btext_unmap(); -#endif -#endif - - reloc_got2(-offset); - - __start(hdr, KERNELBASE + offset, 0); -} -- cgit