X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=arch%2Fx86%2Fcpu%2Fivybridge%2Fsdram.c;h=4372a5caf2d23e8942a078e580cef4014d37e530;hb=a69fdc7787bfa2f27eed74c2ee58c28ce932d502;hp=49634485f3e249cdba4ac793537506baac1ba2bb;hpb=307367eaffc8638e10ba1784fc66bfe623ae79e2;p=platform%2Fkernel%2Fu-boot.git diff --git a/arch/x86/cpu/ivybridge/sdram.c b/arch/x86/cpu/ivybridge/sdram.c index 4963448..4372a5c 100644 --- a/arch/x86/cpu/ivybridge/sdram.c +++ b/arch/x86/cpu/ivybridge/sdram.c @@ -21,10 +21,10 @@ #include #include #include +#include #include #include #include -#include #include #include #include @@ -89,41 +89,17 @@ void dram_init_banksize(void) } } -static int get_mrc_entry(struct spi_flash **sfp, struct fmap_entry *entry) -{ - const void *blob = gd->fdt_blob; - int node, spi_node, mrc_node; - int upto; - - /* Find the flash chip within the SPI controller node */ - upto = 0; - spi_node = fdtdec_next_alias(blob, "spi", COMPAT_INTEL_ICH_SPI, &upto); - if (spi_node < 0) - return -ENOENT; - node = fdt_first_subnode(blob, spi_node); - if (node < 0) - return -ECHILD; - - /* Find the place where we put the MRC cache */ - mrc_node = fdt_subnode_offset(blob, node, "rw-mrc-cache"); - if (mrc_node < 0) - return -EPERM; - - if (fdtdec_read_fmap_entry(blob, mrc_node, "rm-mrc-cache", entry)) - return -EINVAL; - - if (sfp) { - *sfp = spi_flash_probe_fdt(blob, node, spi_node); - if (!*sfp) - return -EBADF; - } - - return 0; -} - static int read_seed_from_cmos(struct pei_data *pei_data) { u16 c1, c2, checksum, seed_checksum; + struct udevice *dev; + int ret = 0; + + ret = uclass_get_device(UCLASS_RTC, 0, &dev); + if (ret) { + debug("Cannot find RTC: err=%d\n", ret); + return -ENODEV; + } /* * Read scrambler seeds from CMOS RAM. We don't want to store them in @@ -131,11 +107,18 @@ static int read_seed_from_cmos(struct pei_data *pei_data) * the flash too much. So we store these in CMOS and the large MRC * data in SPI flash. */ - pei_data->scrambler_seed = rtc_read32(CMOS_OFFSET_MRC_SEED); + ret = rtc_read32(dev, CMOS_OFFSET_MRC_SEED, &pei_data->scrambler_seed); + if (!ret) { + ret = rtc_read32(dev, CMOS_OFFSET_MRC_SEED_S3, + &pei_data->scrambler_seed_s3); + } + if (ret) { + debug("Failed to read from RTC %s\n", dev->name); + return ret; + } + debug("Read scrambler seed 0x%08x from CMOS 0x%02x\n", pei_data->scrambler_seed, CMOS_OFFSET_MRC_SEED); - - pei_data->scrambler_seed_s3 = rtc_read32(CMOS_OFFSET_MRC_SEED_S3); debug("Read S3 scrambler seed 0x%08x from CMOS 0x%02x\n", pei_data->scrambler_seed_s3, CMOS_OFFSET_MRC_SEED_S3); @@ -146,8 +129,8 @@ static int read_seed_from_cmos(struct pei_data *pei_data) sizeof(u32)); checksum = add_ip_checksums(sizeof(u32), c1, c2); - seed_checksum = rtc_read8(CMOS_OFFSET_MRC_SEED_CHK); - seed_checksum |= rtc_read8(CMOS_OFFSET_MRC_SEED_CHK + 1) << 8; + seed_checksum = rtc_read8(dev, CMOS_OFFSET_MRC_SEED_CHK); + seed_checksum |= rtc_read8(dev, CMOS_OFFSET_MRC_SEED_CHK + 1) << 8; if (checksum != seed_checksum) { debug("%s: invalid seed checksum\n", __func__); @@ -162,27 +145,21 @@ static int read_seed_from_cmos(struct pei_data *pei_data) static int prepare_mrc_cache(struct pei_data *pei_data) { struct mrc_data_container *mrc_cache; - struct fmap_entry entry; + struct mrc_region entry; int ret; ret = read_seed_from_cmos(pei_data); if (ret) return ret; - ret = get_mrc_entry(NULL, &entry); + ret = mrccache_get_region(NULL, &entry); if (ret) return ret; mrc_cache = mrccache_find_current(&entry); if (!mrc_cache) return -ENOENT; - /* - * TODO(sjg@chromium.org): Skip this for now as it causes boot - * problems - */ - if (0) { - pei_data->mrc_input = mrc_cache->data; - pei_data->mrc_input_len = mrc_cache->data_size; - } + pei_data->mrc_input = mrc_cache->data; + pei_data->mrc_input_len = mrc_cache->data_size; debug("%s: at %p, size %x checksum %04x\n", __func__, pei_data->mrc_input, pei_data->mrc_input_len, mrc_cache->checksum); @@ -190,42 +167,24 @@ static int prepare_mrc_cache(struct pei_data *pei_data) return 0; } -static int build_mrc_data(struct mrc_data_container **datap) -{ - struct mrc_data_container *data; - int orig_len; - int output_len; - - orig_len = gd->arch.mrc_output_len; - output_len = ALIGN(orig_len, 16); - data = malloc(output_len + sizeof(*data)); - if (!data) - return -ENOMEM; - data->signature = MRC_DATA_SIGNATURE; - data->data_size = output_len; - data->reserved = 0; - memcpy(data->data, gd->arch.mrc_output, orig_len); - - /* Zero the unused space in aligned buffer. */ - if (output_len > orig_len) - memset(data->data + orig_len, 0, output_len - orig_len); - - data->checksum = compute_ip_checksum(data->data, output_len); - *datap = data; - - return 0; -} - static int write_seeds_to_cmos(struct pei_data *pei_data) { u16 c1, c2, checksum; + struct udevice *dev; + int ret = 0; + + ret = uclass_get_device(UCLASS_RTC, 0, &dev); + if (ret) { + debug("Cannot find RTC: err=%d\n", ret); + return -ENODEV; + } /* Save the MRC seed values to CMOS */ - rtc_write32(CMOS_OFFSET_MRC_SEED, pei_data->scrambler_seed); + rtc_write32(dev, CMOS_OFFSET_MRC_SEED, pei_data->scrambler_seed); debug("Save scrambler seed 0x%08x to CMOS 0x%02x\n", pei_data->scrambler_seed, CMOS_OFFSET_MRC_SEED); - rtc_write32(CMOS_OFFSET_MRC_SEED_S3, pei_data->scrambler_seed_s3); + rtc_write32(dev, CMOS_OFFSET_MRC_SEED_S3, pei_data->scrambler_seed_s3); debug("Save s3 scrambler seed 0x%08x to CMOS 0x%02x\n", pei_data->scrambler_seed_s3, CMOS_OFFSET_MRC_SEED_S3); @@ -236,49 +195,18 @@ static int write_seeds_to_cmos(struct pei_data *pei_data) sizeof(u32)); checksum = add_ip_checksums(sizeof(u32), c1, c2); - rtc_write8(CMOS_OFFSET_MRC_SEED_CHK, checksum & 0xff); - rtc_write8(CMOS_OFFSET_MRC_SEED_CHK + 1, (checksum >> 8) & 0xff); + rtc_write8(dev, CMOS_OFFSET_MRC_SEED_CHK, checksum & 0xff); + rtc_write8(dev, CMOS_OFFSET_MRC_SEED_CHK + 1, (checksum >> 8) & 0xff); return 0; } -static int sdram_save_mrc_data(void) -{ - struct mrc_data_container *data; - struct fmap_entry entry; - struct spi_flash *sf; - int ret; - - if (!gd->arch.mrc_output_len) - return 0; - debug("Saving %d bytes of MRC output data to SPI flash\n", - gd->arch.mrc_output_len); - - ret = get_mrc_entry(&sf, &entry); - if (ret) - goto err_entry; - ret = build_mrc_data(&data); - if (ret) - goto err_data; - ret = mrccache_update(sf, &entry, data); - if (!ret) - debug("Saved MRC data with checksum %04x\n", data->checksum); - - free(data); -err_data: - spi_flash_free(sf); -err_entry: - if (ret) - debug("%s: Failed: %d\n", __func__, ret); - return ret; -} - /* Use this hook to save our SDRAM parameters */ int misc_init_r(void) { int ret; - ret = sdram_save_mrc_data(); + ret = mrccache_save(); if (ret) printf("Unable to save MRC data: %d\n", ret); @@ -390,8 +318,7 @@ int sdram_initialise(struct pei_data *pei_data) /* If MRC data is not found we cannot continue S3 resume. */ if (pei_data->boot_mode == PEI_BOOT_RESUME && !pei_data->mrc_input) { debug("Giving up in sdram_initialize: No MRC data\n"); - outb(0x6, PORT_RESET); - cpu_hlt(); + reset_cpu(0); } /* Pass console handler in pei_data */ @@ -403,9 +330,11 @@ int sdram_initialise(struct pei_data *pei_data) if (data) { int rv; int (*func)(struct pei_data *); + ulong start; debug("Calling MRC at %p\n", data); post_code(POST_PRE_MRC); + start = get_timer(0); func = (int (*)(struct pei_data *))data; rv = func(pei_data); post_code(POST_MRC); @@ -423,6 +352,7 @@ int sdram_initialise(struct pei_data *pei_data) printf("Nonzero MRC return value.\n"); return -EFAULT; } + debug("MRC execution time %lu ms\n", get_timer(start)); } else { printf("UEFI PEI System Agent not found.\n"); return -ENOSYS; @@ -437,14 +367,14 @@ int sdram_initialise(struct pei_data *pei_data) debug("System Agent Version %d.%d.%d Build %d\n", version >> 24 , (version >> 16) & 0xff, (version >> 8) & 0xff, version & 0xff); - debug("MCR output data length %#x at %p\n", pei_data->mrc_output_len, + debug("MRC output data length %#x at %p\n", pei_data->mrc_output_len, pei_data->mrc_output); /* * Send ME init done for SandyBridge here. This is done inside the * SystemAgent binary on IvyBridge */ - done = pci_read_config32(PCH_DEV, PCI_DEVICE_ID); + done = x86_pci_read_config32(PCH_DEV, PCI_DEVICE_ID); done &= BASE_REV_MASK; if (BASE_REV_SNB == done) intel_early_me_init_done(ME_INIT_STATUS_SUCCESS); @@ -458,7 +388,7 @@ int sdram_initialise(struct pei_data *pei_data) if (pei_data->boot_mode != PEI_BOOT_RESUME) { /* * This will be copied to SDRAM in reserve_arch(), then written - * to SPI flash in sdram_save_mrc_data() + * to SPI flash in mrccache_save() */ gd->arch.mrc_output = (char *)pei_data->mrc_output; gd->arch.mrc_output_len = pei_data->mrc_output_len; @@ -472,19 +402,7 @@ int sdram_initialise(struct pei_data *pei_data) int reserve_arch(void) { - u16 checksum; - - checksum = compute_ip_checksum(gd->arch.mrc_output, - gd->arch.mrc_output_len); - debug("Saving %d bytes for MRC output data, checksum %04x\n", - gd->arch.mrc_output_len, checksum); - gd->start_addr_sp -= gd->arch.mrc_output_len; - memcpy((void *)gd->start_addr_sp, gd->arch.mrc_output, - gd->arch.mrc_output_len); - gd->arch.mrc_output = (char *)gd->start_addr_sp; - gd->start_addr_sp &= ~0xf; - - return 0; + return mrccache_reserve(); } static int copy_spd(struct pei_data *peid) @@ -615,24 +533,24 @@ static int sdram_find(pci_dev_t dev) */ /* Top of Upper Usable DRAM, including remap */ - touud = pci_read_config32(dev, TOUUD+4); + touud = x86_pci_read_config32(dev, TOUUD+4); touud <<= 32; - touud |= pci_read_config32(dev, TOUUD); + touud |= x86_pci_read_config32(dev, TOUUD); /* Top of Lower Usable DRAM */ - tolud = pci_read_config32(dev, TOLUD); + tolud = x86_pci_read_config32(dev, TOLUD); /* Top of Memory - does not account for any UMA */ - tom = pci_read_config32(dev, 0xa4); + tom = x86_pci_read_config32(dev, 0xa4); tom <<= 32; - tom |= pci_read_config32(dev, 0xa0); + tom |= x86_pci_read_config32(dev, 0xa0); debug("TOUUD %llx TOLUD %08x TOM %llx\n", touud, tolud, tom); /* ME UMA needs excluding if total memory <4GB */ - me_base = pci_read_config32(dev, 0x74); + me_base = x86_pci_read_config32(dev, 0x74); me_base <<= 32; - me_base |= pci_read_config32(dev, 0x70); + me_base |= x86_pci_read_config32(dev, 0x70); debug("MEBASE %llx\n", me_base); @@ -650,7 +568,7 @@ static int sdram_find(pci_dev_t dev) } /* Graphics memory comes next */ - ggc = pci_read_config16(dev, GGC); + ggc = x86_pci_read_config16(dev, GGC); if (!(ggc & 2)) { debug("IGD decoded, subtracting "); @@ -670,7 +588,7 @@ static int sdram_find(pci_dev_t dev) } /* Calculate TSEG size from its base which must be below GTT */ - tseg_base = pci_read_config32(dev, 0xb8); + tseg_base = x86_pci_read_config32(dev, 0xb8); uma_size = (uma_memory_base - tseg_base) >> 10; tomk -= uma_size; uma_memory_base = tomk * 1024ULL; @@ -757,7 +675,7 @@ int dram_init(void) .mchbar = DEFAULT_MCHBAR, .dmibar = DEFAULT_DMIBAR, .epbar = DEFAULT_EPBAR, - .pciexbar = CONFIG_MMCONF_BASE_ADDRESS, + .pciexbar = CONFIG_PCIE_ECAM_BASE, .smbusbar = SMBUS_IO_BASE, .wdbbar = 0x4000000, .wdbsize = 0x1000, @@ -809,7 +727,7 @@ int dram_init(void) int ret; debug("Boot mode %d\n", gd->arch.pei_boot_mode); - debug("mcr_input %p\n", pei_data.mrc_input); + debug("mrc_input %p\n", pei_data.mrc_input); pei_data.boot_mode = gd->arch.pei_boot_mode; ret = copy_spd(&pei_data); if (!ret)