|
@@ -11,7 +11,6 @@
|
|
|
#include <netdev.h>
|
|
|
#include <asm/io.h>
|
|
|
#include <linux/compiler.h>
|
|
|
-#include <asm/semihosting.h>
|
|
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
|
@@ -33,101 +32,6 @@ void reset_cpu(ulong addr)
|
|
|
{
|
|
|
}
|
|
|
|
|
|
-#ifdef CONFIG_BOARD_LATE_INIT
|
|
|
-int board_late_init(void)
|
|
|
-{
|
|
|
-#ifdef CONFIG_SEMIHOSTING
|
|
|
- /*
|
|
|
- * Please refer to doc/README.semihosting for a more complete
|
|
|
- * description.
|
|
|
- *
|
|
|
- * We require that the board include file defines these env variables:
|
|
|
- * - kernel_name
|
|
|
- * - kernel_addr_r
|
|
|
- * - initrd_name
|
|
|
- * - initrd_addr_r
|
|
|
- * - fdt_name
|
|
|
- * - fdt_addr_r
|
|
|
- *
|
|
|
- * For the "fdt chosen" startup macro, this code will then define:
|
|
|
- * - initrd_end (based on initrd_addr_r plus actual initrd_size)
|
|
|
- *
|
|
|
- * We will then load the kernel, initrd, and fdt into the specified
|
|
|
- * locations in memory in a similar way that the ATF fastmodel code
|
|
|
- * uses semihosting calls to load other boot stages and u-boot itself.
|
|
|
- */
|
|
|
-
|
|
|
- /* Env variable strings */
|
|
|
- char *kernel_name = getenv("kernel_name");
|
|
|
- char *kernel_addr_str = getenv("kernel_addr_r");
|
|
|
- char *initrd_name = getenv("initrd_name");
|
|
|
- char *initrd_addr_str = getenv("initrd_addr_r");
|
|
|
- char *fdt_name = getenv("fdt_name");
|
|
|
- char *fdt_addr_str = getenv("fdt_addr_r");
|
|
|
- char initrd_end_str[64];
|
|
|
-
|
|
|
- /* Actual addresses converted from env variables */
|
|
|
- void *kernel_addr_r;
|
|
|
- void *initrd_addr_r;
|
|
|
- void *fdt_addr_r;
|
|
|
-
|
|
|
- /* Actual initrd base and size */
|
|
|
- unsigned long initrd_base;
|
|
|
- unsigned long initrd_size;
|
|
|
-
|
|
|
- /* Space available */
|
|
|
- int avail;
|
|
|
-
|
|
|
- /* Make sure the environment variables needed are set */
|
|
|
- if (!(kernel_addr_str && initrd_addr_str && fdt_addr_str)) {
|
|
|
- printf("%s: Define {kernel/initrd/fdt}_addr_r\n", __func__);
|
|
|
- return -1;
|
|
|
- }
|
|
|
- if (!(kernel_name && initrd_name && fdt_name)) {
|
|
|
- printf("%s: Define {kernel/initrd/fdt}_name\n", __func__);
|
|
|
- return -1;
|
|
|
- }
|
|
|
-
|
|
|
- /* Get exact initrd_size */
|
|
|
- initrd_size = smh_len(initrd_name);
|
|
|
- if (initrd_size == -1) {
|
|
|
- printf("%s: Can't get file size for \'%s\'\n", __func__,
|
|
|
- initrd_name);
|
|
|
- return -1;
|
|
|
- }
|
|
|
-
|
|
|
- /* Set initrd_end */
|
|
|
- initrd_base = simple_strtoul(initrd_addr_str, NULL, 16);
|
|
|
- initrd_addr_r = (void *)initrd_base;
|
|
|
- sprintf(initrd_end_str, "0x%lx", initrd_base + initrd_size - 1);
|
|
|
- setenv("initrd_end", initrd_end_str);
|
|
|
-
|
|
|
- /* Load kernel to memory */
|
|
|
- fdt_addr_r = (void *)simple_strtoul(fdt_addr_str, NULL, 16);
|
|
|
- kernel_addr_r = (void *)simple_strtoul(kernel_addr_str, NULL, 16);
|
|
|
-
|
|
|
- /*
|
|
|
- * The kernel must be lower in memory than fdt and loading the
|
|
|
- * kernel must not trample the fdt or vice versa.
|
|
|
- */
|
|
|
- avail = fdt_addr_r - kernel_addr_r;
|
|
|
- if (avail < 0) {
|
|
|
- printf("%s: fdt must be after kernel\n", __func__);
|
|
|
- return -1;
|
|
|
- }
|
|
|
- smh_load(kernel_name, kernel_addr_r, avail, 1);
|
|
|
-
|
|
|
- /* Load fdt to memory */
|
|
|
- smh_load(fdt_name, fdt_addr_r, 0x20000, 1);
|
|
|
-
|
|
|
- /* Load initrd to memory */
|
|
|
- smh_load(initrd_name, initrd_addr_r, initrd_size, 1);
|
|
|
-
|
|
|
-#endif /* CONFIG_SEMIHOSTING */
|
|
|
- return 0;
|
|
|
-}
|
|
|
-#endif /* CONFIG_BOARD_LATE_INIT */
|
|
|
-
|
|
|
/*
|
|
|
* Board specific ethernet initialization routine.
|
|
|
*/
|