2 # Copyright (c) 2009 Nathan Whitehorn
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29 #include <sys/param.h>
31 #include <sys/mutex.h>
32 #include <sys/systm.h>
35 #include <machine/machdep.h>
36 #include <machine/platform.h>
37 #include <machine/platformvar.h>
38 #include <machine/smp.h>
39 #include <machine/vmparam.h>
42 * @defgroup PLATFORM platform - KObj methods for ARM platform
44 * @brief A set of methods required by all platform implementations.
45 * These are used to bring up secondary CPUs, supply the physical memory
53 # Default implementations
56 static void platform_null_attach(platform_t plat)
61 static void platform_default_mp_setmaxid(platform_t plat)
69 * @brief Probe for whether we are on this platform, returning the standard
70 * newbus probe codes. If we have Open Firmware or a flattened device tree,
71 * it is guaranteed to be available at this point.
78 * @brief Attach this platform module. This happens before the MMU is online,
79 * so the platform module can install its own high-priority MMU module at
84 } DEFAULT platform_null_attach;
87 * @brief Called as one of the last steps of early virtual memory
88 * initialization, shortly before the new page tables are installed.
90 METHOD int devmap_init {
95 * @brief Called after devmap_init(), and must return the address of the
96 * first byte of unusable KVA space. This allows a platform to carve out
97 * of the top of the KVA space whatever reserves it needs for things like
98 * static device mapping, and this is called to get the value before
99 * calling pmap_bootstrap() which uses the value to size the available KVA.
101 METHOD vm_offset_t lastaddr {
106 * @brief Called after the static device mappings are established and just
107 * before cninit(). The intention is that the routine can do any hardware
108 * setup (such as gpio or pinmux) necessary to make the console functional.
110 METHOD void gpio_init {
115 * @brief Called just after cninit(). This is the first of the init
116 * routines that can use printf() and expect the output to appear on
117 * a standard console.
119 METHOD void late_init {
124 * @brief Called by cpu_mp_setmaxid() to set mp_maxid and mp_ncpus.
126 METHOD void mp_setmaxid {
128 } DEFAULT platform_default_mp_setmaxid;
131 * @brief Called by cpu_mp_start to start the secondary processors.
133 METHOD void mp_start_ap {