diff options
Diffstat (limited to 'arch/mips/cavium-octeon')
| -rw-r--r-- | arch/mips/cavium-octeon/Makefile | 3 | ||||
| -rw-r--r-- | arch/mips/cavium-octeon/executive/cvmx-bootmem.c | 5 | ||||
| -rw-r--r-- | arch/mips/cavium-octeon/executive/cvmx-l2c.c | 1 | ||||
| -rw-r--r-- | arch/mips/cavium-octeon/flash_setup.c | 3 | ||||
| -rw-r--r-- | arch/mips/cavium-octeon/octeon-irq.c | 1 | ||||
| -rw-r--r-- | arch/mips/cavium-octeon/octeon-memcpy.S | 27 | ||||
| -rw-r--r-- | arch/mips/cavium-octeon/octeon-platform.c | 102 | ||||
| -rw-r--r-- | arch/mips/cavium-octeon/serial.c | 2 | ||||
| -rw-r--r-- | arch/mips/cavium-octeon/setup.c | 374 |
9 files changed, 365 insertions, 153 deletions
diff --git a/arch/mips/cavium-octeon/Makefile b/arch/mips/cavium-octeon/Makefile index bc96e2908f1..6e927cf20df 100644 --- a/arch/mips/cavium-octeon/Makefile +++ b/arch/mips/cavium-octeon/Makefile @@ -24,9 +24,6 @@ DTB_FILES = $(patsubst %.dts, %.dtb, $(DTS_FILES)) obj-y += $(patsubst %.dts, %.dtb.o, $(DTS_FILES)) -$(obj)/%.dtb: $(src)/%.dts FORCE - $(call if_changed_dep,dtc) - # Let's keep the .dtb files around in case we want to look at them. .SECONDARY: $(addprefix $(obj)/, $(DTB_FILES)) diff --git a/arch/mips/cavium-octeon/executive/cvmx-bootmem.c b/arch/mips/cavium-octeon/executive/cvmx-bootmem.c index fdf5f19bfdb..6d5ddbc112c 100644 --- a/arch/mips/cavium-octeon/executive/cvmx-bootmem.c +++ b/arch/mips/cavium-octeon/executive/cvmx-bootmem.c @@ -688,3 +688,8 @@ int64_t cvmx_bootmem_phy_named_block_alloc(uint64_t size, uint64_t min_addr, cvmx_spinlock_unlock((cvmx_spinlock_t *)&(cvmx_bootmem_desc->lock)); return addr_allocated; } + +struct cvmx_bootmem_desc *cvmx_bootmem_get_desc(void) +{ + return cvmx_bootmem_desc; +} diff --git a/arch/mips/cavium-octeon/executive/cvmx-l2c.c b/arch/mips/cavium-octeon/executive/cvmx-l2c.c index d38246e33dd..9f883bf7695 100644 --- a/arch/mips/cavium-octeon/executive/cvmx-l2c.c +++ b/arch/mips/cavium-octeon/executive/cvmx-l2c.c @@ -30,6 +30,7 @@ * measurement, and debugging facilities. */ +#include <linux/irqflags.h> #include <asm/octeon/cvmx.h> #include <asm/octeon/cvmx-l2c.h> #include <asm/octeon/cvmx-spinlock.h> diff --git a/arch/mips/cavium-octeon/flash_setup.c b/arch/mips/cavium-octeon/flash_setup.c index e44a55bc7f0..237e5b1a72d 100644 --- a/arch/mips/cavium-octeon/flash_setup.c +++ b/arch/mips/cavium-octeon/flash_setup.c @@ -51,7 +51,8 @@ static int __init flash_init(void) flash_map.name = "phys_mapped_flash"; flash_map.phys = region_cfg.s.base << 16; flash_map.size = 0x1fc00000 - flash_map.phys; - flash_map.bankwidth = 1; + /* 8-bit bus (0 + 1) or 16-bit bus (1 + 1) */ + flash_map.bankwidth = region_cfg.s.width + 1; flash_map.virt = ioremap(flash_map.phys, flash_map.size); pr_notice("Bootbus flash: Setting flash for %luMB flash at " "0x%08llx\n", flash_map.size >> 20, flash_map.phys); diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c index 02b15eed4bc..46f5dbceeec 100644 --- a/arch/mips/cavium-octeon/octeon-irq.c +++ b/arch/mips/cavium-octeon/octeon-irq.c @@ -1266,7 +1266,6 @@ static void __init octeon_irq_init_ciu(void) octeon_irq_force_ciu_mapping(ciu_domain, i + OCTEON_IRQ_TIMER0, 0, i + 52); octeon_irq_force_ciu_mapping(ciu_domain, OCTEON_IRQ_USB0, 0, 56); - octeon_irq_force_ciu_mapping(ciu_domain, OCTEON_IRQ_BOOTDMA, 0, 63); /* CIU_1 */ for (i = 0; i < 16; i++) diff --git a/arch/mips/cavium-octeon/octeon-memcpy.S b/arch/mips/cavium-octeon/octeon-memcpy.S index db478dbb9c7..0ba0eb96d9a 100644 --- a/arch/mips/cavium-octeon/octeon-memcpy.S +++ b/arch/mips/cavium-octeon/octeon-memcpy.S @@ -79,11 +79,6 @@ /* * Only on the 64-bit kernel we can made use of 64-bit registers. */ -#ifdef CONFIG_64BIT -#define USE_DOUBLE -#endif - -#ifdef USE_DOUBLE #define LOAD ld #define LOADL ldl @@ -119,26 +114,6 @@ #define t6 $14 #define t7 $15 -#else - -#define LOAD lw -#define LOADL lwl -#define LOADR lwr -#define STOREL swl -#define STORER swr -#define STORE sw -#define ADD addu -#define SUB subu -#define SRL srl -#define SLL sll -#define SRA sra -#define SLLV sllv -#define SRLV srlv -#define NBYTES 4 -#define LOG_NBYTES 2 - -#endif /* USE_DOUBLE */ - #ifdef CONFIG_CPU_LITTLE_ENDIAN #define LDFIRST LOADR #define LDREST LOADL @@ -395,12 +370,10 @@ EXC( sb t0, N(dst), s_exc_p1) COPY_BYTE(0) COPY_BYTE(1) -#ifdef USE_DOUBLE COPY_BYTE(2) COPY_BYTE(3) COPY_BYTE(4) COPY_BYTE(5) -#endif EXC( lb t0, NBYTES-2(src), l_exc) SUB len, len, 1 jr ra diff --git a/arch/mips/cavium-octeon/octeon-platform.c b/arch/mips/cavium-octeon/octeon-platform.c index 0938df10a71..3c1b625a585 100644 --- a/arch/mips/cavium-octeon/octeon-platform.c +++ b/arch/mips/cavium-octeon/octeon-platform.c @@ -24,108 +24,6 @@ #include <asm/octeon/cvmx-helper.h> #include <asm/octeon/cvmx-helper-board.h> -static struct octeon_cf_data octeon_cf_data; - -static int __init octeon_cf_device_init(void) -{ - union cvmx_mio_boot_reg_cfgx mio_boot_reg_cfg; - unsigned long base_ptr, region_base, region_size; - struct platform_device *pd; - struct resource cf_resources[3]; - unsigned int num_resources; - int i; - int ret = 0; - - /* Setup octeon-cf platform device if present. */ - base_ptr = 0; - if (octeon_bootinfo->major_version == 1 - && octeon_bootinfo->minor_version >= 1) { - if (octeon_bootinfo->compact_flash_common_base_addr) - base_ptr = - octeon_bootinfo->compact_flash_common_base_addr; - } else { - base_ptr = 0x1d000800; - } - - if (!base_ptr) - return ret; - - /* Find CS0 region. */ - for (i = 0; i < 8; i++) { - mio_boot_reg_cfg.u64 = cvmx_read_csr(CVMX_MIO_BOOT_REG_CFGX(i)); - region_base = mio_boot_reg_cfg.s.base << 16; - region_size = (mio_boot_reg_cfg.s.size + 1) << 16; - if (mio_boot_reg_cfg.s.en && base_ptr >= region_base - && base_ptr < region_base + region_size) - break; - } - if (i >= 7) { - /* i and i + 1 are CS0 and CS1, both must be less than 8. */ - goto out; - } - octeon_cf_data.base_region = i; - octeon_cf_data.is16bit = mio_boot_reg_cfg.s.width; - octeon_cf_data.base_region_bias = base_ptr - region_base; - memset(cf_resources, 0, sizeof(cf_resources)); - num_resources = 0; - cf_resources[num_resources].flags = IORESOURCE_MEM; - cf_resources[num_resources].start = region_base; - cf_resources[num_resources].end = region_base + region_size - 1; - num_resources++; - - - if (!(base_ptr & 0xfffful)) { - /* - * Boot loader signals availability of DMA (true_ide - * mode) by setting low order bits of base_ptr to - * zero. - */ - - /* Assume that CS1 immediately follows. */ - mio_boot_reg_cfg.u64 = - cvmx_read_csr(CVMX_MIO_BOOT_REG_CFGX(i + 1)); - region_base = mio_boot_reg_cfg.s.base << 16; - region_size = (mio_boot_reg_cfg.s.size + 1) << 16; - if (!mio_boot_reg_cfg.s.en) - goto out; - - cf_resources[num_resources].flags = IORESOURCE_MEM; - cf_resources[num_resources].start = region_base; - cf_resources[num_resources].end = region_base + region_size - 1; - num_resources++; - - octeon_cf_data.dma_engine = 0; - cf_resources[num_resources].flags = IORESOURCE_IRQ; - cf_resources[num_resources].start = OCTEON_IRQ_BOOTDMA; - cf_resources[num_resources].end = OCTEON_IRQ_BOOTDMA; - num_resources++; - } else { - octeon_cf_data.dma_engine = -1; - } - - pd = platform_device_alloc("pata_octeon_cf", -1); - if (!pd) { - ret = -ENOMEM; - goto out; - } - pd->dev.platform_data = &octeon_cf_data; - - ret = platform_device_add_resources(pd, cf_resources, num_resources); - if (ret) - goto fail; - - ret = platform_device_add(pd); - if (ret) - goto fail; - - return ret; -fail: - platform_device_put(pd); -out: - return ret; -} -device_initcall(octeon_cf_device_init); - /* Octeon Random Number Generator. */ static int __init octeon_rng_device_init(void) { diff --git a/arch/mips/cavium-octeon/serial.c b/arch/mips/cavium-octeon/serial.c index 569f41bdcc4..f393f65f392 100644 --- a/arch/mips/cavium-octeon/serial.c +++ b/arch/mips/cavium-octeon/serial.c @@ -43,7 +43,7 @@ void octeon_serial_out(struct uart_port *up, int offset, int value) cvmx_write_csr((uint64_t)(up->membase + (offset << 3)), (u8)value); } -static int __devinit octeon_serial_probe(struct platform_device *pdev) +static int octeon_serial_probe(struct platform_device *pdev) { int irq, res; struct resource *res_mem; diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c index 04dd8ff0e0d..d7e0a09f77c 100644 --- a/arch/mips/cavium-octeon/setup.c +++ b/arch/mips/cavium-octeon/setup.c @@ -4,9 +4,11 @@ * for more details. * * Copyright (C) 2004-2007 Cavium Networks - * Copyright (C) 2008 Wind River Systems + * Copyright (C) 2008, 2009 Wind River Systems + * written by Ralf Baechle <ralf@linux-mips.org> */ #include <linux/init.h> +#include <linux/kernel.h> #include <linux/console.h> #include <linux/delay.h> #include <linux/export.h> @@ -23,6 +25,7 @@ #include <linux/serial_8250.h> #include <linux/of_fdt.h> #include <linux/libfdt.h> +#include <linux/kexec.h> #include <asm/processor.h> #include <asm/reboot.h> @@ -56,11 +59,208 @@ struct octeon_boot_descriptor *octeon_boot_desc_ptr; struct cvmx_bootinfo *octeon_bootinfo; EXPORT_SYMBOL(octeon_bootinfo); +static unsigned long long RESERVE_LOW_MEM = 0ull; +#ifdef CONFIG_KEXEC +#ifdef CONFIG_SMP +/* + * Wait for relocation code is prepared and send + * secondary CPUs to spin until kernel is relocated. + */ +static void octeon_kexec_smp_down(void *ignored) +{ + int cpu = smp_processor_id(); + + local_irq_disable(); + set_cpu_online(cpu, false); + while (!atomic_read(&kexec_ready_to_reboot)) + cpu_relax(); + + asm volatile ( + " sync \n" + " synci ($0) \n"); + + relocated_kexec_smp_wait(NULL); +} +#endif + +#define OCTEON_DDR0_BASE (0x0ULL) +#define OCTEON_DDR0_SIZE (0x010000000ULL) +#define OCTEON_DDR1_BASE (0x410000000ULL) +#define OCTEON_DDR1_SIZE (0x010000000ULL) +#define OCTEON_DDR2_BASE (0x020000000ULL) +#define OCTEON_DDR2_SIZE (0x3e0000000ULL) +#define OCTEON_MAX_PHY_MEM_SIZE (16*1024*1024*1024ULL) + +static struct kimage *kimage_ptr; + +static void kexec_bootmem_init(uint64_t mem_size, uint32_t low_reserved_bytes) +{ + int64_t addr; + struct cvmx_bootmem_desc *bootmem_desc; + + bootmem_desc = cvmx_bootmem_get_desc(); + + if (mem_size > OCTEON_MAX_PHY_MEM_SIZE) { + mem_size = OCTEON_MAX_PHY_MEM_SIZE; + pr_err("Error: requested memory too large," + "truncating to maximum size\n"); + } + + bootmem_desc->major_version = CVMX_BOOTMEM_DESC_MAJ_VER; + bootmem_desc->minor_version = CVMX_BOOTMEM_DESC_MIN_VER; + + addr = (OCTEON_DDR0_BASE + RESERVE_LOW_MEM + low_reserved_bytes); + bootmem_desc->head_addr = 0; + + if (mem_size <= OCTEON_DDR0_SIZE) { + __cvmx_bootmem_phy_free(addr, + mem_size - RESERVE_LOW_MEM - + low_reserved_bytes, 0); + return; + } + + __cvmx_bootmem_phy_free(addr, + OCTEON_DDR0_SIZE - RESERVE_LOW_MEM - + low_reserved_bytes, 0); + + mem_size -= OCTEON_DDR0_SIZE; + + if (mem_size > OCTEON_DDR1_SIZE) { + __cvmx_bootmem_phy_free(OCTEON_DDR1_BASE, OCTEON_DDR1_SIZE, 0); + __cvmx_bootmem_phy_free(OCTEON_DDR2_BASE, + mem_size - OCTEON_DDR1_SIZE, 0); + } else + __cvmx_bootmem_phy_free(OCTEON_DDR1_BASE, mem_size, 0); +} + +static int octeon_kexec_prepare(struct kimage *image) +{ + int i; + char *bootloader = "kexec"; + + octeon_boot_desc_ptr->argc = 0; + for (i = 0; i < image->nr_segments; i++) { + if (!strncmp(bootloader, (char *)image->segment[i].buf, + strlen(bootloader))) { + /* + * convert command line string to array + * of parameters (as bootloader does). + */ + int argc = 0, offt; + char *str = (char *)image->segment[i].buf; + char *ptr = strchr(str, ' '); + while (ptr && (OCTEON_ARGV_MAX_ARGS > argc)) { + *ptr = '\0'; + if (ptr[1] != ' ') { + offt = (int)(ptr - str + 1); + octeon_boot_desc_ptr->argv[argc] = + image->segment[i].mem + offt; + argc++; + } + ptr = strchr(ptr + 1, ' '); + } + octeon_boot_desc_ptr->argc = argc; + break; + } + } + + /* + * Information about segments will be needed during pre-boot memory + * initialization. + */ + kimage_ptr = image; + return 0; +} + +static void octeon_generic_shutdown(void) +{ + int cpu, i; + struct cvmx_bootmem_desc *bootmem_desc; + void *named_block_array_ptr; + + bootmem_desc = cvmx_bootmem_get_desc(); + named_block_array_ptr = + cvmx_phys_to_ptr(bootmem_desc->named_block_array_addr); + +#ifdef CONFIG_SMP + /* disable watchdogs */ + for_each_online_cpu(cpu) + cvmx_write_csr(CVMX_CIU_WDOGX(cpu_logical_map(cpu)), 0); +#else + cvmx_write_csr(CVMX_CIU_WDOGX(cvmx_get_core_num()), 0); +#endif + if (kimage_ptr != kexec_crash_image) { + memset(named_block_array_ptr, + 0x0, + CVMX_BOOTMEM_NUM_NAMED_BLOCKS * + sizeof(struct cvmx_bootmem_named_block_desc)); + /* + * Mark all memory (except low 0x100000 bytes) as free. + * It is the same thing that bootloader does. + */ + kexec_bootmem_init(octeon_bootinfo->dram_size*1024ULL*1024ULL, + 0x100000); + /* + * Allocate all segments to avoid their corruption during boot. + */ + for (i = 0; i < kimage_ptr->nr_segments; i++) + cvmx_bootmem_alloc_address( + kimage_ptr->segment[i].memsz + 2*PAGE_SIZE, + kimage_ptr->segment[i].mem - PAGE_SIZE, + PAGE_SIZE); + } else { + /* + * Do not mark all memory as free. Free only named sections + * leaving the rest of memory unchanged. + */ + struct cvmx_bootmem_named_block_desc *ptr = + (struct cvmx_bootmem_named_block_desc *) + named_block_array_ptr; + + for (i = 0; i < bootmem_desc->named_block_num_blocks; i++) + if (ptr[i].size) + cvmx_bootmem_free_named(ptr[i].name); + } + kexec_args[2] = 1UL; /* running on octeon_main_processor */ + kexec_args[3] = (unsigned long)octeon_boot_desc_ptr; +#ifdef CONFIG_SMP + secondary_kexec_args[2] = 0UL; /* running on secondary cpu */ + secondary_kexec_args[3] = (unsigned long)octeon_boot_desc_ptr; +#endif +} + +static void octeon_shutdown(void) +{ + octeon_generic_shutdown(); +#ifdef CONFIG_SMP + smp_call_function(octeon_kexec_smp_down, NULL, 0); + smp_wmb(); + while (num_online_cpus() > 1) { + cpu_relax(); + mdelay(1); + } +#endif +} + +static void octeon_crash_shutdown(struct pt_regs *regs) +{ + octeon_generic_shutdown(); + default_machine_crash_shutdown(regs); +} + +#endif /* CONFIG_KEXEC */ + #ifdef CONFIG_CAVIUM_RESERVE32 uint64_t octeon_reserve32_memory; EXPORT_SYMBOL(octeon_reserve32_memory); #endif +#ifdef CONFIG_KEXEC +/* crashkernel cmdline parameter is parsed _after_ memory setup + * we also parse it here (workaround for EHB5200) */ +static uint64_t crashk_size, crashk_base; +#endif + static int octeon_uart; extern asmlinkage void handle_int(void); @@ -415,6 +615,8 @@ void octeon_user_io_init(void) void __init prom_init(void) { struct cvmx_sysinfo *sysinfo; + const char *arg; + char *p; int i; int argc; #ifdef CONFIG_CAVIUM_RESERVE32 @@ -566,6 +768,15 @@ void __init prom_init(void) if (octeon_is_simulation()) MAX_MEMORY = 64ull << 20; + arg = strstr(arcs_cmdline, "mem="); + if (arg) { + MAX_MEMORY = memparse(arg + 4, &p); + if (MAX_MEMORY == 0) + MAX_MEMORY = 32ull << 30; + if (*p == '@') + RESERVE_LOW_MEM = memparse(p + 1, &p); + } + arcs_cmdline[0] = 0; argc = octeon_boot_desc_ptr->argc; for (i = 0; i < argc; i++) { @@ -573,16 +784,30 @@ void __init prom_init(void) cvmx_phys_to_ptr(octeon_boot_desc_ptr->argv[i]); if ((strncmp(arg, "MEM=", 4) == 0) || (strncmp(arg, "mem=", 4) == 0)) { - sscanf(arg + 4, "%llu", &MAX_MEMORY); - MAX_MEMORY <<= 20; + MAX_MEMORY = memparse(arg + 4, &p); if (MAX_MEMORY == 0) MAX_MEMORY = 32ull << 30; + if (*p == '@') + RESERVE_LOW_MEM = memparse(p + 1, &p); } else if (strcmp(arg, "ecc_verbose") == 0) { #ifdef CONFIG_CAVIUM_REPORT_SINGLE_BIT_ECC __cvmx_interrupt_ecc_report_single_bit_errors = 1; pr_notice("Reporting of single bit ECC errors is " "turned on\n"); #endif +#ifdef CONFIG_KEXEC + } else if (strncmp(arg, "crashkernel=", 12) == 0) { + crashk_size = memparse(arg+12, &p); + if (*p == '@') + crashk_base = memparse(p+1, &p); + strcat(arcs_cmdline, " "); + strcat(arcs_cmdline, arg); + /* + * To do: switch parsing to new style, something like: + * parse_crashkernel(arg, sysinfo->system_dram_size, + * &crashk_size, &crashk_base); + */ +#endif } else if (strlen(arcs_cmdline) + strlen(arg) + 1 < sizeof(arcs_cmdline) - 1) { strcat(arcs_cmdline, " "); @@ -617,11 +842,18 @@ void __init prom_init(void) _machine_restart = octeon_restart; _machine_halt = octeon_halt; +#ifdef CONFIG_KEXEC + _machine_kexec_shutdown = octeon_shutdown; + _machine_crash_shutdown = octeon_crash_shutdown; + _machine_kexec_prepare = octeon_kexec_prepare; +#endif + octeon_user_io_init(); register_smp_ops(&octeon_smp_ops); } /* Exclude a single page from the regions obtained in plat_mem_setup. */ +#ifndef CONFIG_CRASH_DUMP static __init void memory_exclude_page(u64 addr, u64 *mem, u64 *size) { if (addr > *mem && addr < *mem + *size) { @@ -636,14 +868,21 @@ static __init void memory_exclude_page(u64 addr, u64 *mem, u64 *size) *size -= PAGE_SIZE; } } +#endif /* CONFIG_CRASH_DUMP */ void __init plat_mem_setup(void) { uint64_t mem_alloc_size; uint64_t total; + uint64_t crashk_end; +#ifndef CONFIG_CRASH_DUMP int64_t memory; + uint64_t kernel_start; + uint64_t kernel_size; +#endif total = 0; + crashk_end = 0; /* * The Mips memory init uses the first memory location for @@ -656,6 +895,17 @@ void __init plat_mem_setup(void) if (mem_alloc_size > MAX_MEMORY) mem_alloc_size = MAX_MEMORY; +/* Crashkernel ignores bootmem list. It relies on mem=X@Y option */ +#ifdef CONFIG_CRASH_DUMP + add_memory_region(RESERVE_LOW_MEM, MAX_MEMORY, BOOT_MEM_RAM); + total += MAX_MEMORY; +#else +#ifdef CONFIG_KEXEC + if (crashk_size > 0) { + add_memory_region(crashk_base, crashk_size, BOOT_MEM_RAM); + crashk_end = crashk_base + crashk_size; + } +#endif /* * When allocating memory, we want incrementing addresses from * bootmem_alloc so the code in add_memory_region can merge @@ -664,22 +914,15 @@ void __init plat_mem_setup(void) cvmx_bootmem_lock(); while ((boot_mem_map.nr_map < BOOT_MEM_MAP_MAX) && (total < MAX_MEMORY)) { -#if defined(CONFIG_64BIT) || defined(CONFIG_64BIT_PHYS_ADDR) memory = cvmx_bootmem_phy_alloc(mem_alloc_size, __pa_symbol(&__init_end), -1, 0x100000, CVMX_BOOTMEM_FLAG_NO_LOCKING); -#elif defined(CONFIG_HIGHMEM) - memory = cvmx_bootmem_phy_alloc(mem_alloc_size, 0, 1ull << 31, - 0x100000, - CVMX_BOOTMEM_FLAG_NO_LOCKING); -#else - memory = cvmx_bootmem_phy_alloc(mem_alloc_size, 0, 512 << 20, - 0x100000, - CVMX_BOOTMEM_FLAG_NO_LOCKING); -#endif if (memory >= 0) { u64 size = mem_alloc_size; +#ifdef CONFIG_KEXEC + uint64_t end; +#endif /* * exclude a page at the beginning and end of @@ -692,20 +935,67 @@ void __init plat_mem_setup(void) memory_exclude_page(CVMX_PCIE_BAR1_PHYS_BASE + CVMX_PCIE_BAR1_PHYS_SIZE, &memory, &size); +#ifdef CONFIG_KEXEC + end = memory + mem_alloc_size; /* - * This function automatically merges address - * regions next to each other if they are - * received in incrementing order. + * This function automatically merges address regions + * next to each other if they are received in + * incrementing order */ - if (size) - add_memory_region(memory, size, BOOT_MEM_RAM); + if (memory < crashk_base && end > crashk_end) { + /* region is fully in */ + add_memory_region(memory, + crashk_base - memory, + BOOT_MEM_RAM); + total += crashk_base - memory; + add_memory_region(crashk_end, + end - crashk_end, + BOOT_MEM_RAM); + total += end - crashk_end; + continue; + } + + if (memory >= crashk_base && end <= crashk_end) + /* + * Entire memory region is within the new + * kernel's memory, ignore it. + */ + continue; + + if (memory > crashk_base && memory < crashk_end && + end > crashk_end) { + /* + * Overlap with the beginning of the region, + * reserve the beginning. + */ + mem_alloc_size -= crashk_end - memory; + memory = crashk_end; + } else if (memory < crashk_base && end > crashk_base && + end < crashk_end) + /* + * Overlap with the beginning of the region, + * chop of end. + */ + mem_alloc_size -= end - crashk_base; +#endif + add_memory_region(memory, mem_alloc_size, BOOT_MEM_RAM); total += mem_alloc_size; + /* Recovering mem_alloc_size */ + mem_alloc_size = 4 << 20; } else { break; } } cvmx_bootmem_unlock(); + /* Add the memory region for the kernel. */ + kernel_start = (unsigned long) _text; + kernel_size = ALIGN(_end - _text, 0x100000); + + /* Adjust for physical offset. */ + kernel_start &= ~0xffffffff80000000ULL; + add_memory_region(kernel_start, kernel_size, BOOT_MEM_RAM); +#endif /* CONFIG_CRASH_DUMP */ #ifdef CONFIG_CAVIUM_RESERVE32 /* @@ -821,3 +1111,51 @@ void __init device_tree_init(void) } unflatten_device_tree(); } + +static int __initdata disable_octeon_edac_p; + +static int __init disable_octeon_edac(char *str) +{ + disable_octeon_edac_p = 1; + return 0; +} +early_param("disable_octeon_edac", disable_octeon_edac); + +static char *edac_device_names[] = { + "octeon_l2c_edac", + "octeon_pc_edac", +}; + +static int __init edac_devinit(void) +{ + struct platform_device *dev; + int i, err = 0; + int num_lmc; + char *name; + + if (disable_octeon_edac_p) + return 0; + + for (i = 0; i < ARRAY_SIZE(edac_device_names); i++) { + name = edac_device_names[i]; + dev = platform_device_register_simple(name, -1, NULL, 0); + if (IS_ERR(dev)) { + pr_err("Registation of %s failed!\n", name); + err = PTR_ERR(dev); + } + } + + num_lmc = OCTEON_IS_MODEL(OCTEON_CN68XX) ? 4 : + (OCTEON_IS_MODEL(OCTEON_CN56XX) ? 2 : 1); + for (i = 0; i < num_lmc; i++) { + dev = platform_device_register_simple("octeon_lmc_edac", + i, NULL, 0); + if (IS_ERR(dev)) { + pr_err("Registation of octeon_lmc_edac %d failed!\n", i); + err = PTR_ERR(dev); + } + } + + return err; +} +device_initcall(edac_devinit); |