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author | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2016-05-04 13:24:47 -0700 |
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committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2016-05-05 20:08:58 +0200 |
commit | 3b0f20ba70e7c42e233c1db0bdafed4da7b2483d (patch) | |
tree | 5c43e4fb25b05c788ca40c7c3e60c0c96c8bc5a7 /src/soc/rdc/r8610/northbridge.c | |
parent | 5caf89b9f848bbab199e7e6bd37897f6464e4d23 (diff) |
rdc/r8610: Move to src/soc
Change-Id: I99e5d7f3b46c90ca863ddf6c186b5447d0c8e6f2
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: https://review.coreboot.org/14607
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Diffstat (limited to 'src/soc/rdc/r8610/northbridge.c')
-rw-r--r-- | src/soc/rdc/r8610/northbridge.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/src/soc/rdc/r8610/northbridge.c b/src/soc/rdc/r8610/northbridge.c new file mode 100644 index 0000000000..00aa0d419a --- /dev/null +++ b/src/soc/rdc/r8610/northbridge.c @@ -0,0 +1,124 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Rudolf Marek <r.marek@assembler.cz> + * + * Based on qemu-x86/northbridge.c + * + * 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; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + + +#include <console/console.h> +#include <arch/io.h> +#include <stdint.h> +#include <device/device.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include <stdlib.h> +#include <string.h> +#include <smbios.h> +#include <cbmem.h> + +static unsigned long get_memory_size(void) +{ + device_t nb_dev; + u8 size; + + nb_dev = dev_find_device(PCI_VENDOR_ID_RDC, + PCI_DEVICE_ID_RDC_R8610_NB, 0); + size = pci_read_config8(nb_dev, 0x6d) & 0xf; + return (2 * 1024) << size; +} + +static void cpu_pci_domain_set_resources(device_t dev) +{ + u32 pci_tolm = find_pci_tolm(dev->link_list); + unsigned long tomk = 0, tolmk; + int idx; + + tomk = get_memory_size(); + printk(BIOS_DEBUG, "Detected %lu Kbytes (%lu MiB) RAM.\n", + tomk, tomk / 1024); + + /* Compute the top of Low memory */ + tolmk = pci_tolm >> 10; + if (tolmk >= tomk) { + /* The PCI hole does not overlap the memory. */ + tolmk = tomk; + } + + /* Report the memory regions. */ + idx = 10; + ram_resource(dev, idx++, 0, 640); + ram_resource(dev, idx++, 768, tolmk - 768); + + set_top_of_ram(tomk * 1024); + + assign_resources(dev->link_list); +} + +static void cpu_pci_domain_read_resources(struct device *dev) +{ + pci_domain_read_resources(dev); +} + +#if CONFIG_GENERATE_SMBIOS_TABLES +static int rdc_get_smbios_data16(int handle, unsigned long *current) +{ + struct smbios_type16 *t = (struct smbios_type16 *)*current; + int len = sizeof(struct smbios_type16); + + memset(t, 0, sizeof(struct smbios_type16)); + t->type = SMBIOS_PHYS_MEMORY_ARRAY; + t->handle = handle; + t->length = len - 2; + t->location = 3; /* Location: System Board */ + t->use = 3; /* System memory */ + t->memory_error_correction = 3; /* No error correction */ + t->maximum_capacity = get_memory_size(); + *current += len; + return len; +} + +static int rdc_get_smbios_data(device_t dev, int *handle, + unsigned long *current) +{ + int len; + + len = rdc_get_smbios_data16(*handle, current); + *handle += 1; + return len; +} +#endif +static struct device_operations pci_domain_ops = { + .read_resources = cpu_pci_domain_read_resources, + .set_resources = cpu_pci_domain_set_resources, + .enable_resources = NULL, + .init = NULL, + .scan_bus = pci_domain_scan_bus, + .ops_pci_bus = pci_bus_default_ops, +#if CONFIG_GENERATE_SMBIOS_TABLES + .get_smbios_data = rdc_get_smbios_data, +#endif +}; + +static void enable_dev(struct device *dev) +{ + if (dev->path.type == DEVICE_PATH_DOMAIN) { + /* Set the operations if it is a special bus type */ + dev->ops = &pci_domain_ops; + } +} + +struct chip_operations northbridge_rdc_r8610_ops = { + CHIP_NAME("RDC R8610 Northbridge") + .enable_dev = enable_dev, +}; |