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-rw-r--r--arch/arm/lib/board.c29
-rw-r--r--arch/arm/lib/bootm.c137
2 files changed, 126 insertions, 40 deletions
diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c
index e411d93..ffe261b 100644
--- a/arch/arm/lib/board.c
+++ b/arch/arm/lib/board.c
@@ -409,15 +409,6 @@ void start_armboot (void)
enable_interrupts ();
/* Perform network card initialisation if necessary */
-#ifdef CONFIG_DRIVER_TI_EMAC
- /* XXX: this needs to be moved to board init */
-extern void davinci_eth_set_mac_addr (const u_int8_t *addr);
- if (getenv ("ethaddr")) {
- uchar enetaddr[6];
- eth_getenv_enetaddr("ethaddr", enetaddr);
- davinci_eth_set_mac_addr(enetaddr);
- }
-#endif
#if defined(CONFIG_DRIVER_SMC91111) || defined (CONFIG_DRIVER_LAN91C96)
/* XXX: this needs to be moved to board init */
@@ -780,6 +771,11 @@ void board_init_r (gd_t *id, ulong dest_addr)
onenand_init();
#endif
+#ifdef CONFIG_GENERIC_MMC
+ puts("MMC: ");
+ mmc_initialize(bd);
+#endif
+
#ifdef CONFIG_HAS_DATAFLASH
AT91F_DataflashInit();
dataflash_print_info();
@@ -822,16 +818,6 @@ void board_init_r (gd_t *id, ulong dest_addr)
enable_interrupts ();
/* Perform network card initialisation if necessary */
-#ifdef CONFIG_DRIVER_TI_EMAC
- /* XXX: this needs to be moved to board init */
-extern void davinci_eth_set_mac_addr (const u_int8_t *addr);
- if (getenv ("ethaddr")) {
- uchar enetaddr[6];
- eth_getenv_enetaddr("ethaddr", enetaddr);
- davinci_eth_set_mac_addr(enetaddr);
- }
-#endif
-
#if defined(CONFIG_DRIVER_SMC91111) || defined (CONFIG_DRIVER_LAN91C96)
/* XXX: this needs to be moved to board init */
if (getenv ("ethaddr")) {
@@ -855,11 +841,6 @@ extern void davinci_eth_set_mac_addr (const u_int8_t *addr);
board_late_init ();
#endif
-#ifdef CONFIG_GENERIC_MMC
- puts ("MMC: ");
- mmc_initialize (gd->bd);
-#endif
-
#ifdef CONFIG_BITBANGMII
bb_miiphy_init();
#endif
diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c
index 3101321..2e7b2e1 100644
--- a/arch/arm/lib/bootm.c
+++ b/arch/arm/lib/bootm.c
@@ -26,6 +26,9 @@
#include <image.h>
#include <u-boot/zlib.h>
#include <asm/byteorder.h>
+#include <fdt.h>
+#include <libfdt.h>
+#include <fdt_support.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -50,12 +53,52 @@ static void setup_end_tag (bd_t *bd);
static struct tag *params;
#endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */
-int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
+static ulong get_sp(void);
+#if defined(CONFIG_OF_LIBFDT)
+static int bootm_linux_fdt(int machid, bootm_headers_t *images);
+#endif
+
+void arch_lmb_reserve(struct lmb *lmb)
+{
+ ulong sp;
+
+ /*
+ * Booting a (Linux) kernel image
+ *
+ * Allocate space for command line and board info - the
+ * address should be as high as possible within the reach of
+ * the kernel (see CONFIG_SYS_BOOTMAPSZ settings), but in unused
+ * memory, which means far enough below the current stack
+ * pointer.
+ */
+ sp = get_sp();
+ debug("## Current stack ends at 0x%08lx ", sp);
+
+ /* adjust sp by 1K to be safe */
+ sp -= 1024;
+ lmb_reserve(lmb, sp,
+ gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size - sp);
+}
+
+static void announce_and_cleanup(void)
+{
+ printf("\nStarting kernel ...\n\n");
+
+#ifdef CONFIG_USB_DEVICE
+ {
+ extern void udc_disconnect(void);
+ udc_disconnect();
+ }
+#endif
+ cleanup_before_linux();
+}
+
+int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
{
bd_t *bd = gd->bd;
char *s;
int machid = bd->bi_arch_number;
- void (*theKernel)(int zero, int arch, uint params);
+ void (*kernel_entry)(int zero, int arch, uint params);
#ifdef CONFIG_CMDLINE_TAG
char *commandline = getenv ("bootargs");
@@ -64,8 +107,6 @@ int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *ima
if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
return 1;
- theKernel = (void (*)(int, int, uint))images->ep;
-
s = getenv ("machid");
if (s) {
machid = simple_strtoul (s, NULL, 16);
@@ -74,8 +115,15 @@ int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *ima
show_boot_progress (15);
+#ifdef CONFIG_OF_LIBFDT
+ if (images->ft_len)
+ return bootm_linux_fdt(machid, images);
+#endif
+
+ kernel_entry = (void (*)(int, int, uint))images->ep;
+
debug ("## Transferring control to Linux (at address %08lx) ...\n",
- (ulong) theKernel);
+ (ulong) kernel_entry);
#if defined (CONFIG_SETUP_MEMORY_TAGS) || \
defined (CONFIG_CMDLINE_TAG) || \
@@ -99,27 +147,76 @@ int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *ima
if (images->rd_start && images->rd_end)
setup_initrd_tag (bd, images->rd_start, images->rd_end);
#endif
- setup_end_tag (bd);
+ setup_end_tag(bd);
#endif
- /* we assume that the kernel is in place */
- printf ("\nStarting kernel ...\n\n");
+ announce_and_cleanup();
-#ifdef CONFIG_USB_DEVICE
- {
- extern void udc_disconnect (void);
- udc_disconnect ();
+ kernel_entry(0, machid, bd->bi_boot_params);
+ /* does not return */
+
+ return 1;
+}
+
+#if defined(CONFIG_OF_LIBFDT)
+static int fixup_memory_node(void *blob)
+{
+ bd_t *bd = gd->bd;
+ int bank;
+ u64 start[CONFIG_NR_DRAM_BANKS];
+ u64 size[CONFIG_NR_DRAM_BANKS];
+
+ for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
+ start[bank] = bd->bi_dram[bank].start;
+ size[bank] = bd->bi_dram[bank].size;
}
-#endif
- cleanup_before_linux ();
+ return fdt_fixup_memory_banks(blob, start, size, CONFIG_NR_DRAM_BANKS);
+}
+
+static int bootm_linux_fdt(int machid, bootm_headers_t *images)
+{
+ ulong rd_len;
+ bd_t *bd = gd->bd;
+ char *s;
+ void (*kernel_entry)(int zero, int dt_machid, void *dtblob);
+ ulong bootmap_base = getenv_bootm_low();
+ ulong of_size = images->ft_len;
+ char **of_flat_tree = &images->ft_addr;
+ ulong *initrd_start = &images->initrd_start;
+ ulong *initrd_end = &images->initrd_end;
+ struct lmb *lmb = &images->lmb;
+ int ret;
+
+ kernel_entry = (void (*)(int, int, void *))images->ep;
+
+ rd_len = images->rd_end - images->rd_start;
+ ret = boot_ramdisk_high(lmb, images->rd_start, rd_len,
+ initrd_start, initrd_end);
+ if (ret)
+ return ret;
+
+ ret = boot_relocate_fdt(lmb, bootmap_base, of_flat_tree, &of_size);
+ if (ret)
+ return ret;
- theKernel (0, machid, bd->bi_boot_params);
+ debug("## Transferring control to Linux (at address %08lx) ...\n",
+ (ulong) kernel_entry);
+
+ fdt_chosen(*of_flat_tree, 1);
+
+ fixup_memory_node(*of_flat_tree);
+
+ fdt_initrd(*of_flat_tree, *initrd_start, *initrd_end, 1);
+
+ announce_and_cleanup();
+
+ kernel_entry(0, machid, *of_flat_tree);
/* does not return */
return 1;
}
-
+#endif
#if defined (CONFIG_SETUP_MEMORY_TAGS) || \
defined (CONFIG_CMDLINE_TAG) || \
@@ -239,4 +336,12 @@ static void setup_end_tag (bd_t *bd)
params->hdr.size = 0;
}
+static ulong get_sp(void)
+{
+ ulong ret;
+
+ asm("mov %0, sp" : "=r"(ret) : );
+ return ret;
+}
+
#endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */
generated by cgit v1.1 at 2024-12-24 04:36:48 +0000