| 56,8 → 56,8 |
|---|
| char *timestamp = ""; |
| #endif |
| |
| /** UltraSPARC subarchitecture - 1 for US, 3 for US3 */ |
| uint8_t subarchitecture; |
| /** UltraSPARC subarchitecture - 1 for US, 3 for US3, 0 for other */ |
| uint8_t subarchitecture = 0; |
| |
| /** |
| * mask of the MID field inside the ICBUS_CONFIG register shifted by |
| 82,8 → 82,51 |
|---|
| /* UltraSPARC IIIi processor implementation code */ |
| #define US_IIIi_CODE 0x15 |
| |
| /* max. length of the "compatible" property of the root node */ |
| #define COMPATIBLE_PROP_MAXLEN 64 |
| |
| /* |
| * HelenOS bootloader will use these constants to distinguish particular |
| * UltraSPARC architectures |
| */ |
| #define COMPATIBLE_SUN4U 10 |
| #define COMPATIBLE_SUN4V 20 |
| |
| /** US architecture. COMPATIBLE_SUN4U for sun4v, COMPATIBLE_SUN4V for sun4u */ |
| static uint8_t architecture; |
| |
| /** |
| * Sets the global variables "subarchitecture" and "mid_mask" to |
| * Detects the UltraSPARC architecture (sun4u and sun4v currently supported) |
| * by inspecting the property called "compatible" in the OBP root node. |
| */ |
| static void detect_architecture(void) |
| { |
| phandle root = ofw_find_device("/"); |
| char compatible[COMPATIBLE_PROP_MAXLEN]; |
| |
| if (ofw_get_property(root, "compatible", compatible, |
| COMPATIBLE_PROP_MAXLEN) <= 0) { |
| printf("Unable to determine architecture, default: sun4u.\n"); |
| architecture = COMPATIBLE_SUN4U; |
| return; |
| } |
| |
| if (strcmp(compatible, "sun4v") == 0) { |
| architecture = COMPATIBLE_SUN4V; |
| } else { |
| /* |
| * As not all sun4u machines have "sun4u" in their "compatible" |
| * OBP property (e.g. Serengeti's OBP "compatible" property is |
| * "SUNW,Serengeti"), we will by default fallback to sun4u if |
| * an unknown value of the "compatible" property is encountered. |
| */ |
| architecture = COMPATIBLE_SUN4U; |
| } |
| } |
| |
| /** |
| * Detects the subarchitecture (US, US3) of the sun4u |
| * processor. Sets the global variables "subarchitecture" and "mid_mask" to |
| * correct values. |
| */ |
| static void detect_subarchitecture(void) |
| 106,6 → 149,36 |
|---|
| } |
| } |
| |
| /** |
| * Performs sun4u-specific initialization. The components are expected |
| * to be already copied and boot allocator initialized. |
| */ |
| static void bootstrap_sun4u(void) |
| { |
| printf("\nCanonizing OpenFirmware device tree..."); |
| bootinfo.ofw_root = ofw_tree_build(); |
| printf("done.\n"); |
| |
| detect_subarchitecture(); |
| |
| #ifdef CONFIG_SMP |
| printf("\nChecking for secondary processors..."); |
| if (!ofw_cpu()) |
| printf("Error: unable to get CPU properties\n"); |
| printf("done.\n"); |
| #endif |
| |
| setup_palette(); |
| } |
| |
| /** |
| * Performs sun4v-specific initialization. The components are expected |
| * to be already copied and boot allocator initialized. |
| */ |
| static void bootstrap_sun4v(void) |
| { |
| } |
| |
| void bootstrap(void) |
| { |
| void *base = (void *) KERNEL_VIRTUAL_ADDRESS; |
| 113,9 → 186,7 |
|---|
| unsigned int top = 0; |
| int i, j; |
| |
| version_print(); |
| |
| detect_subarchitecture(); |
| detect_architecture(); |
| init_components(components); |
| |
| if (!ofw_get_physmem_start(&bootinfo.physmem_start)) { |
| 256,19 → 327,16 |
|---|
| (void) ofw_map(balloc_base, balloc_base, BALLOC_MAX_SIZE, -1); |
| balloc_init(&bootinfo.ballocs, (uintptr_t)balloc_base); |
| |
| printf("\nCanonizing OpenFirmware device tree..."); |
| bootinfo.ofw_root = ofw_tree_build(); |
| printf("done.\n"); |
| /* perform architecture-specific initialization */ |
| if (architecture == COMPATIBLE_SUN4U) { |
| bootstrap_sun4u(); |
| } else if (architecture == COMPATIBLE_SUN4V) { |
| bootstrap_sun4v(); |
| } else { |
| printf("Unknown architecture.\n"); |
| halt(); |
| } |
| |
| #ifdef CONFIG_SMP |
| printf("\nChecking for secondary processors..."); |
| if (!ofw_cpu()) |
| printf("Error: unable to get CPU properties\n"); |
| printf("done.\n"); |
| #endif |
| |
| setup_palette(); |
| |
| printf("\nBooting the kernel...\n"); |
| jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS, |
| bootinfo.physmem_start | BSP_PROCESSOR, &bootinfo, |