+/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 1998 Dan Malek <dmalek@jlc.net>
* Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se>
* Copyright (C) 2000, 2001,2002 Wolfgang Denk <wd@denx.de>
* Copyright Freescale Semiconductor, Inc. 2004, 2006, 2008.
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
/*
mtspr SRR1, r3
rfi
- .globl get_svr
-get_svr:
- mfspr r3, SVR
- blr
-
- .globl get_pvr
-get_pvr:
- mfspr r3, PVR
- blr
-
.globl ppcDWstore
ppcDWstore:
lfd 1, 0(r4)
#ifndef CONFIG_DEFAULT_IMMR
#error CONFIG_DEFAULT_IMMR must be defined
-#endif /* CONFIG_SYS_DEFAULT_IMMR */
+#endif /* CONFIG_DEFAULT_IMMR */
#ifndef CONFIG_SYS_IMMR
#define CONFIG_SYS_IMMR CONFIG_DEFAULT_IMMR
#endif /* CONFIG_SYS_IMMR */
#endif
/* set up the stack pointer in our newly created
- * cache-ram (r1) */
- lis r1, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@h
- ori r1, r1, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@l
+ * cache-ram; use r3 to keep the new SP for now to
+ * avoid overiding the SP it uselessly */
+ lis r3, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@h
+ ori r3, r3, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@l
+
+ /* r4 = end of GD area */
+ addi r4, r3, GENERATED_GBL_DATA_SIZE
+ /* Zero GD area */
+ li r0, 0
+1:
+ subi r4, r4, 1
+ stb r0, 0(r4)
+ cmplw r3, r4
+ bne 1b
+
+#if CONFIG_VAL(SYS_MALLOC_F_LEN)
+
+#if CONFIG_VAL(SYS_MALLOC_F_LEN) + GENERATED_GBL_DATA_SIZE > CONFIG_SYS_INIT_RAM_SIZE
+#error "SYS_MALLOC_F_LEN too large to fit into initial RAM."
+#endif
+
+ /* r3 = new stack pointer / pre-reloc malloc area */
+ subi r3, r3, CONFIG_VAL(SYS_MALLOC_F_LEN)
+
+ /* Set pointer to pre-reloc malloc area in GD */
+ stw r3, GD_MALLOC_BASE(r4)
+#endif
li r0, 0 /* Make room for stack frame header and */
- stwu r0, -4(r1) /* clear final stack frame so that */
- stwu r0, -4(r1) /* stack backtraces terminate cleanly */
+ stwu r0, -4(r3) /* clear final stack frame so that */
+ stwu r0, -4(r3) /* stack backtraces terminate cleanly */
+ /* Finally, actually set SP */
+ mr r1, r3
/* let the C-code set up the rest */
/* */
/*------------------------------------------------------*/
GET_GOT /* initialize GOT access */
+ /* Needed for -msingle-pic-base */
+ bl _GLOBAL_OFFSET_TABLE_@local-4
+ mflr r30
/* r3: IMMR */
lis r3, CONFIG_SYS_IMMR@h