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 * @{
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 * @{
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 */
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 */
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/** @file
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/** @file
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 */
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 */
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- 
 
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#include <arch/cpu_family.h>
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#include <cpu.h>
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#include <cpu.h>
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#include <arch.h>
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#include <arch.h>
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#include <genarch/ofw/ofw_tree.h>
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#include <genarch/ofw/ofw_tree.h>
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#include <arch/drivers/tick.h>
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#include <arch/drivers/tick.h>
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#include <print.h>
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#include <print.h>
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#include <arch/cpu_node.h>
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/**
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 * Finds out the clock frequency of the current CPU.
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 *
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 * @param node  node representing the current CPU in the OFW tree
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 * @return  clock frequency if "node" is the current CPU and no error
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 *      occurs, -1 if "node" is not the current CPU or on error
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 */
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static int find_cpu_frequency(ofw_tree_node_t *node)
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{
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    ofw_tree_property_t *prop;
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    uint32_t mid;
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    /* 'upa-portid' for US, 'portid' for US-III, 'cpuid' for US-IV */
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    prop = ofw_tree_getprop(node, "upa-portid");
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    if ((!prop) || (!prop->value))
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        prop = ofw_tree_getprop(node, "portid");
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    if ((!prop) || (!prop->value))
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        prop = ofw_tree_getprop(node, "cpuid");
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    if (prop && prop->value) {
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        mid = *((uint32_t *) prop->value);
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        if (mid == CPU->arch.mid) {
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            prop = ofw_tree_getprop(node, "clock-frequency");
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            if (prop && prop->value) {
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                return *((uint32_t *) prop->value);
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            }
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        }
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    }
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    return -1;
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}
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/** Perform sparc64 specific initialization of the processor structure for the
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/** Perform sparc64 specific initialization of the processor structure for the
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 * current processor.
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 * current processor.
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 */
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 */
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void cpu_arch_init(void)
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void cpu_arch_init(void)
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{
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{
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    ofw_tree_node_t *node;
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    ofw_tree_node_t *node;
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    uint32_t mid;
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    uint32_t clock_frequency = 0;
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    uint32_t clock_frequency = 0;
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    upa_config_t upa_config;
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    upa_config.value = upa_config_read();
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    CPU->arch.mid = upa_config.mid;
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    CPU->arch.mid = read_mid();
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    /*
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    /*
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     * Detect processor frequency.
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     * Detect processor frequency.
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     */
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     */
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    if (is_us() || is_us_iii()) {
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    node = ofw_tree_find_child_by_device_type(ofw_tree_lookup("/"), "cpu");
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        node = ofw_tree_find_child_by_device_type(cpus_parent(), "cpu");
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    while (node) {
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        while (node) {
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            int f = find_cpu_frequency(node);
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            if (f != -1)
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        ofw_tree_property_t *prop;
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                clock_frequency = (uint32_t) f;
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            node = ofw_tree_find_peer_by_device_type(node, "cpu");
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        }
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    } else if (is_us_iv()) {
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        prop = ofw_tree_getprop(node, "upa-portid");
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        node = ofw_tree_find_child(cpus_parent(), "cmp");
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        while (node) {
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            int f;
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        if (prop && prop->value) {
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            f = find_cpu_frequency(
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            mid = *((uint32_t *) prop->value);
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                ofw_tree_find_child(node, "cpu@0"));
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            if (mid == CPU->arch.mid) {
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            if (f != -1)
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                prop = ofw_tree_getprop(node,
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                clock_frequency = (uint32_t) f;
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                    "clock-frequency");
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            f = find_cpu_frequency(
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                ofw_tree_find_child(node, "cpu@1"));
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                if (prop && prop->value)
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            if (f != -1)
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                    clock_frequency = *((uint32_t *)
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                clock_frequency = (uint32_t) f;
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                        prop->value);
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            node = ofw_tree_find_peer_by_name(node, "cmp");
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            }
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        }
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        }
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        node = ofw_tree_find_peer_by_device_type(node, "cpu");
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    }
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    }
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    CPU->arch.clock_frequency = clock_frequency;
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    CPU->arch.clock_frequency = clock_frequency;
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    tick_init();
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    tick_init();
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}
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}
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/** Read version information from the current processor. */
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/** Read version information from the current processor. */
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        impl = "UltraSPARC IIe";
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        impl = "UltraSPARC IIe";
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        break;
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        break;
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    case IMPL_ULTRASPARCIII:
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    case IMPL_ULTRASPARCIII:
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        impl = "UltraSPARC III";
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        impl = "UltraSPARC III";
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        break;
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        break;
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 164 
    case IMPL_ULTRASPARCIII_PLUS:
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        impl = "UltraSPARC III+";
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        break;
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    case IMPL_ULTRASPARCIII_I:
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        impl = "UltraSPARC IIIi";
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        break;
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    case IMPL_ULTRASPARCIV:
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        impl = "UltraSPARC IV";
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        break;
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    case IMPL_ULTRASPARCIV_PLUS:
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    case IMPL_ULTRASPARCIV_PLUS:
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        impl = "UltraSPARC IV+";
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        impl = "UltraSPARC IV+";
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        break;
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        break;
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    case IMPL_SPARC64V:
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    case IMPL_SPARC64V:
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        impl = "SPARC 64V";
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        impl = "SPARC 64V";