*/
#include <common.h>
+#include <malloc.h>
+#include <asm/acpi_table.h>
#include <asm/io.h>
#include <asm/ptrace.h>
#include <asm/zimage.h>
#include <asm/byteorder.h>
+#include <asm/bootm.h>
#include <asm/bootparam.h>
#ifdef CONFIG_SYS_COREBOOT
#include <asm/arch/timestamp.h>
#endif
#include <linux/compiler.h>
+#include <linux/libfdt.h>
/*
* Memory lay-out:
#define COMMAND_LINE_SIZE 2048
-unsigned generic_install_e820_map(unsigned max_entries,
- struct e820entry *entries)
-{
- return 0;
-}
-
-unsigned install_e820_map(unsigned max_entries,
- struct e820entry *entries)
- __attribute__((weak, alias("generic_install_e820_map")));
-
static void build_command_line(char *command_line, int auto_boot)
{
char *env_command_line;
command_line[0] = '\0';
- env_command_line = getenv("bootargs");
+ env_command_line = env_get("bootargs");
/* set console= argument if we use a serial console */
if (!strstr(env_command_line, "console=")) {
- if (!strcmp(getenv("stdout"), "serial")) {
+ if (!strcmp(env_get("stdout"), "serial")) {
/* We seem to use serial console */
sprintf(command_line, "console=ttyS0,%s ",
- getenv("baudrate"));
+ env_get("baudrate"));
}
}
}
}
+static int setup_device_tree(struct setup_header *hdr, const void *fdt_blob)
+{
+ int bootproto = get_boot_protocol(hdr);
+ struct setup_data *sd;
+ int size;
+
+ if (bootproto < 0x0209)
+ return -ENOTSUPP;
+
+ if (!fdt_blob)
+ return 0;
+
+ size = fdt_totalsize(fdt_blob);
+ if (size < 0)
+ return -EINVAL;
+
+ size += sizeof(struct setup_data);
+ sd = (struct setup_data *)malloc(size);
+ if (!sd) {
+ printf("Not enough memory for DTB setup data\n");
+ return -ENOMEM;
+ }
+
+ sd->next = hdr->setup_data;
+ sd->type = SETUP_DTB;
+ sd->len = fdt_totalsize(fdt_blob);
+ memcpy(sd->data, fdt_blob, sd->len);
+ hdr->setup_data = (unsigned long)sd;
+
+ return 0;
+}
+
struct boot_params *load_zimage(char *image, unsigned long kernel_size,
- void **load_address)
+ ulong *load_addressp)
{
struct boot_params *setup_base;
int setup_size;
/* Determine load address */
if (big_image)
- *load_address = (void *)BZIMAGE_LOAD_ADDR;
+ *load_addressp = BZIMAGE_LOAD_ADDR;
else
- *load_address = (void *)ZIMAGE_LOAD_ADDR;
+ *load_addressp = ZIMAGE_LOAD_ADDR;
printf("Building boot_params at 0x%8.8lx\n", (ulong)setup_base);
memset(setup_base, 0, sizeof(*setup_base));
* A very old kernel MUST have its real-mode code
* loaded at 0x90000
*/
- if ((u32)setup_base != 0x90000) {
+ if ((ulong)setup_base != 0x90000) {
/* Copy the real-mode kernel */
memmove((void *)0x90000, setup_base, setup_size);
return 0;
}
- printf("Loading %s at address %p (%ld bytes)\n",
- big_image ? "bzImage" : "zImage", *load_address, kernel_size);
+ printf("Loading %s at address %lx (%ld bytes)\n",
+ big_image ? "bzImage" : "zImage", *load_addressp, kernel_size);
- memmove(*load_address, image + setup_size, kernel_size);
+ memmove((void *)*load_addressp, image + setup_size, kernel_size);
return setup_base;
}
hdr->loadflags |= HEAP_FLAG;
}
- if (bootproto >= 0x0202) {
- hdr->cmd_line_ptr = (uintptr_t)cmd_line;
- } else if (bootproto >= 0x0200) {
- setup_base->screen_info.cl_magic = COMMAND_LINE_MAGIC;
- setup_base->screen_info.cl_offset =
- (uintptr_t)cmd_line - (uintptr_t)setup_base;
-
- hdr->setup_move_size = 0x9100;
- }
+ if (cmd_line) {
+ if (bootproto >= 0x0202) {
+ hdr->cmd_line_ptr = (uintptr_t)cmd_line;
+ } else if (bootproto >= 0x0200) {
+ setup_base->screen_info.cl_magic = COMMAND_LINE_MAGIC;
+ setup_base->screen_info.cl_offset =
+ (uintptr_t)cmd_line - (uintptr_t)setup_base;
- /* build command line at COMMAND_LINE_OFFSET */
- build_command_line(cmd_line, auto_boot);
- return 0;
-}
+ hdr->setup_move_size = 0x9100;
+ }
-/*
- * Implement a weak default function for boards that optionally
- * need to clean up the system before jumping to the kernel.
- */
-__weak void board_final_cleanup(void)
-{
-}
+ /* build command line at COMMAND_LINE_OFFSET */
+ build_command_line(cmd_line, auto_boot);
+ }
-void boot_zimage(void *setup_base, void *load_address)
-{
- debug("## Transferring control to Linux (at address %08x) ...\n",
- (u32)setup_base);
+#ifdef CONFIG_INTEL_MID
+ if (bootproto >= 0x0207)
+ hdr->hardware_subarch = X86_SUBARCH_INTEL_MID;
+#endif
- bootstage_mark_name(BOOTSTAGE_ID_BOOTM_HANDOFF, "start_kernel");
-#ifdef CONFIG_BOOTSTAGE_REPORT
- bootstage_report();
+#ifdef CONFIG_GENERATE_ACPI_TABLE
+ if (bootproto >= 0x020e)
+ hdr->acpi_rsdp_addr = acpi_get_rsdp_addr();
#endif
- board_final_cleanup();
- printf("\nStarting kernel ...\n\n");
+ setup_device_tree(hdr, (const void *)env_get_hex("fdtaddr", 0));
+ setup_video(&setup_base->screen_info);
-#ifdef CONFIG_SYS_COREBOOT
- timestamp_add_now(TS_U_BOOT_START_KERNEL);
-#endif
- /*
- * Set %ebx, %ebp, and %edi to 0, %esi to point to the boot_params
- * structure, and then jump to the kernel. We assume that %cs is
- * 0x10, 4GB flat, and read/execute, and the data segments are 0x18,
- * 4GB flat, and read/write. U-boot is setting them up that way for
- * itself in arch/i386/cpu/cpu.c.
- */
- __asm__ __volatile__ (
- "movl $0, %%ebp\n"
- "cli\n"
- "jmp *%[kernel_entry]\n"
- :: [kernel_entry]"a"(load_address),
- [boot_params] "S"(setup_base),
- "b"(0), "D"(0)
- : "%ebp"
- );
+ return 0;
}
void setup_pcat_compatibility(void)
{
struct boot_params *base_ptr;
void *bzImage_addr = NULL;
- void *load_address;
+ ulong load_address;
char *s;
ulong bzImage_size = 0;
ulong initrd_addr = 0;
/* argv[1] holds the address of the bzImage */
s = argv[1];
} else {
- s = getenv("fileaddr");
+ s = env_get("fileaddr");
}
if (s)
base_ptr = load_zimage(bzImage_addr, bzImage_size, &load_address);
if (!base_ptr) {
- printf("## Kernel loading failed ...\n");
+ puts("## Kernel loading failed ...\n");
return -1;
}
if (setup_zimage(base_ptr, (char *)base_ptr + COMMAND_LINE_OFFSET,
0, initrd_addr, initrd_size)) {
- printf("Setting up boot parameters failed ...\n");
+ puts("Setting up boot parameters failed ...\n");
return -1;
}
/* we assume that the kernel is in place */
- boot_zimage(base_ptr, load_address);
- /* does not return */
-
- return -1;
+ return boot_linux_kernel((ulong)base_ptr, load_address, false);
}
U_BOOT_CMD(
projects / u-boot / blobdiff