void __init prom_init(void)
{
extern unsigned char ecos_to_linux_boot_args[];
strncpy(arcs_cmdline, ecos_to_linux_boot_args, CL_SIZE-1);
arcs_cmdline[CL_SIZE-1] = 0;
if (strstr(arcs_cmdline, "nouart"))
no_early_printk = 1;
bchip_mips_setup();
set_board_nmi_handler();
#ifdef CONFIG_SMP
register_smp_ops(&brcmstb_smp_ops);
#endif
}
void __init prom_init(void)
{
char *ptr;
cfe_init(cfe_handle, cfe_entry);
bchip_check_compat();
board_pinmux_setup();
bchip_mips_setup();
set_board_nmi_handler();
/* default to SATA (where available) or MTD rootfs */
#ifdef CONFIG_BRCM_HAS_SATA
ROOT_DEV = Root_SDA1;
#else
ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, 0);
#endif
root_mountflags &= ~MS_RDONLY;
bchip_set_features();
#if defined(CONFIG_BRCM_IKOS_DEBUG)
strcpy(arcs_cmdline, "debug initcall_debug");
#elif !defined(CONFIG_BRCM_IKOS)
cfe_read_configuration();
#endif
brcm_setup_early_printk();
#ifdef CONFIG_CMDLINE_BOOL
#ifdef CONFIG_CMDLINE_OVERRIDE
strlcpy(arcs_cmdline, builtin_cmdline, COMMAND_LINE_SIZE);
#else
if (builtin_cmdline[0]) {
strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE);
strlcat(arcs_cmdline, builtin_cmdline, COMMAND_LINE_SIZE);
}
#endif
#endif
/* provide "ubiroot" alias to reduce typing */
if (strstr(arcs_cmdline, "ubiroot"))
strcat(arcs_cmdline, " ubi.mtd=rootfs rootfstype=ubifs "
"root=ubi0:rootfs");
ptr = strstr(arcs_cmdline, "memc1=");
if (ptr)
brcm_dram1_linux_mb = memparse(ptr + 6, &ptr) >> 20;
printk(KERN_INFO "Options: enet_en=%d enet0_mii=%d enet_no_mdio=%d "
"enet1_en=%d moca=%d\n",
brcm_enet_enabled, brcm_enet0_force_ext_mii,
brcm_enet_no_mdio, brcm_enet1_enabled, brcm_moca_enabled);
printk(KERN_INFO " sata=%d docsis=%d pci=%d pcie=%d smp=%d "
"usb=%d\n",
brcm_sata_enabled, brcm_docsis_platform, brcm_pci_enabled,
brcm_pcie_enabled, brcm_smp_enabled, brcm_usb_enabled);
bchip_early_setup();
board_get_ram_size(&brcm_dram0_size_mb, &brcm_dram1_size_mb);
do {
unsigned long dram0_mb = brcm_dram0_size_mb, mb;
mb = min(dram0_mb, BRCM_MAX_LOWER_MB);
dram0_mb -= mb;
add_memory_region(0, mb << 20, BOOT_MEM_RAM);
if (!dram0_mb)
break;
#ifdef CONFIG_BRCM_UPPER_MEMORY
mb = min(dram0_mb, BRCM_MAX_UPPER_MB);
dram0_mb -= mb;
brcm_upper_tlb_setup();
add_memory_region(UPPERMEM_START, mb << 20, BOOT_MEM_RAM);
if (!dram0_mb)
break;
#endif
#if defined(CONFIG_HIGHMEM)
add_memory_region(HIGHMEM_START, dram0_mb << 20, BOOT_MEM_RAM);
break;
#endif
/*
* We wound up here because the chip's architecture cannot
* make use of all MEMC0 RAM in Linux. i.e. no suitable
* HIGHMEM or upper memory options are supported by the CPU.
*
* But we can still report the excess memory as a "bonus"
* reserved (bmem) region, so the application can manage it.
*/
mb = brcm_dram0_size_mb - dram0_mb; /* Linux memory */
if (!brcm_dram1_size_mb && mb == 256) {
printk(KERN_INFO "MEMC0 split: %lu MB -> Linux; "
"%lu MB -> extra bmem\n", mb, dram0_mb);
brcm_dram1_size_mb = dram0_mb;
brcm_dram1_start = UPPERMEM_START;
}
} while (0);
#if defined(CONFIG_HIGHMEM) && defined(CONFIG_BRCM_HAS_1GB_MEMC1)
if (brcm_dram1_linux_mb > brcm_dram1_size_mb) {
printk(KERN_WARNING "warning: 'memc1=%luM' exceeds "
"available memory (%lu MB); ignoring\n",
brcm_dram1_linux_mb, brcm_dram1_size_mb);
brcm_dram1_linux_mb = 0;
} else if (brcm_dram1_linux_mb) {
/* Since the bootloader can only map the first 256M of memc1
* when it boots, if we get memc1= request from bootloader, we
* should try to pull the memory from the end to avoid crossing
* over the memory that is allocated for boot logo image by
* bootloader.
*/
unsigned long start_mb, start_b, size, splash_bound = 0;
if (0 == parse_splash_mem(arcs_cmdline, &splash_bound, &size)) {
splash_bound += size;
}
start_mb = brcm_dram1_size_mb - brcm_dram1_linux_mb;
start_b = start_mb << 20;
if (splash_bound > start_b) {
unsigned long orig_dram1 = brcm_dram1_linux_mb;
start_mb = (splash_bound + 0x000FFFFF) >> 20;
start_b = start_mb << 20;
brcm_dram1_linux_mb = brcm_dram1_size_mb - start_mb;
printk(KERN_WARNING "warning: 'memc1=%luM' starts "
" before splash memory bound (0x%lx);"
" adjusting to (memc1=%luM)\n",
orig_dram1, splash_bound, brcm_dram1_linux_mb);
}
printk(KERN_INFO "memc1: adding %luMB at %luMB "
"(0x%08lx@0x%08lx)",
brcm_dram1_linux_mb, (MEMC1_START >> 20) + start_mb,
brcm_dram1_linux_mb << 20, MEMC1_START + start_b);
add_memory_region(MEMC1_START + start_b,
brcm_dram1_linux_mb << 20,
BOOT_MEM_RAM);
}
