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-rw-r--r--arch/sh/Makefile2
-rw-r--r--arch/sh/config.mk2
-rw-r--r--arch/sh/cpu/sh2/Makefile1
-rw-r--r--arch/sh/cpu/sh2/cpu.c6
-rw-r--r--arch/sh/cpu/sh3/Makefile3
-rw-r--r--arch/sh/cpu/sh3/cache.c96
-rw-r--r--arch/sh/cpu/sh3/cpu.c6
-rw-r--r--arch/sh/cpu/sh3/start.S65
-rw-r--r--arch/sh/cpu/sh4/Makefile1
-rw-r--r--arch/sh/cpu/sh4/cache.c88
-rw-r--r--arch/sh/cpu/sh4/cpu.c40
-rw-r--r--arch/sh/cpu/sh4/start.S62
-rw-r--r--arch/sh/cpu/u-boot.lds44
-rw-r--r--arch/sh/include/asm/cache.h2
-rw-r--r--arch/sh/include/asm/io.h10
-rw-r--r--arch/sh/lib/Makefile2
-rw-r--r--arch/sh/lib/board.c35
-rw-r--r--arch/sh/lib/start.S (renamed from arch/sh/cpu/sh2/start.S)33
18 files changed, 121 insertions, 377 deletions
diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index ca55fac9203..14e0b665401 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -2,7 +2,7 @@
# SPDX-License-Identifier: GPL-2.0+
#
-head-y := arch/sh/cpu/$(CPU)/start.o
+head-y := arch/sh/lib/start.o
libs-y += arch/sh/cpu/$(CPU)/
libs-y += arch/sh/lib/
diff --git a/arch/sh/config.mk b/arch/sh/config.mk
index 0578fa3fd81..71540c8bb29 100644
--- a/arch/sh/config.mk
+++ b/arch/sh/config.mk
@@ -15,6 +15,6 @@ CONFIG_STANDALONE_LOAD_ADDR += -EB
endif
PLATFORM_CPPFLAGS += -DCONFIG_SH -D__SH__
-PLATFORM_LDFLAGS += -e $(CONFIG_SYS_TEXT_BASE) --defsym reloc_dst=$(CONFIG_SYS_TEXT_BASE)
+PLATFORM_RELFLAGS += -fpic
LDFLAGS_FINAL = --gc-sections
PLATFORM_RELFLAGS += -ffixed-r13
diff --git a/arch/sh/cpu/sh2/Makefile b/arch/sh/cpu/sh2/Makefile
index a19ed5ecf59..80fff492096 100644
--- a/arch/sh/cpu/sh2/Makefile
+++ b/arch/sh/cpu/sh2/Makefile
@@ -8,5 +8,4 @@
# SPDX-License-Identifier: GPL-2.0+
#
-extra-y = start.o
obj-y = cpu.o interrupts.o watchdog.o
diff --git a/arch/sh/cpu/sh2/cpu.c b/arch/sh/cpu/sh2/cpu.c
index 9a93cf573fe..a2f856f4594 100644
--- a/arch/sh/cpu/sh2/cpu.c
+++ b/arch/sh/cpu/sh2/cpu.c
@@ -83,9 +83,3 @@ int dcache_status(void)
{
return 0;
}
-
-void relocate_code(ulong start_addr_sp, gd_t *new_gd, ulong relocaaddr)
-{
- /* TODO(sh maintainer): Implement this */
- while (1);
-}
diff --git a/arch/sh/cpu/sh3/Makefile b/arch/sh/cpu/sh3/Makefile
index 1dccaf95203..cddc15b5cc3 100644
--- a/arch/sh/cpu/sh3/Makefile
+++ b/arch/sh/cpu/sh3/Makefile
@@ -11,5 +11,4 @@
# SPDX-License-Identifier: GPL-2.0+
#
-extra-y = start.o
-obj-y = cpu.o interrupts.o watchdog.o cache.o
+obj-y = cpu.o interrupts.o watchdog.o
diff --git a/arch/sh/cpu/sh3/cache.c b/arch/sh/cpu/sh3/cache.c
deleted file mode 100644
index 34cbbff8ffd..00000000000
--- a/arch/sh/cpu/sh3/cache.c
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * (C) Copyright 2007
- * Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
- *
- * (C) Copyright 2007
- * Nobobuhiro Iwamatsu <iwamatsu@nigauri.org>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <command.h>
-#include <asm/processor.h>
-#include <asm/io.h>
-
-/*
- * Jump to P2 area.
- * When handling TLB or caches, we need to do it from P2 area.
- */
-#define jump_to_P2() \
- do { \
- unsigned long __dummy; \
- __asm__ __volatile__( \
- "mov.l 1f, %0\n\t" \
- "or %1, %0\n\t" \
- "jmp @%0\n\t" \
- " nop\n\t" \
- ".balign 4\n" \
- "1: .long 2f\n" \
- "2:" \
- : "=&r" (__dummy) \
- : "r" (0x20000000)); \
- } while (0)
-
-/*
- * Back to P1 area.
- */
-#define back_to_P1() \
- do { \
- unsigned long __dummy; \
- __asm__ __volatile__( \
- "nop;nop;nop;nop;nop;nop;nop\n\t" \
- "mov.l 1f, %0\n\t" \
- "jmp @%0\n\t" \
- " nop\n\t" \
- ".balign 4\n" \
- "1: .long 2f\n" \
- "2:" \
- : "=&r" (__dummy)); \
- } while (0)
-
-#define CACHE_VALID 1
-#define CACHE_UPDATED 2
-
-static inline void cache_wback_all(void)
-{
- unsigned long addr, data, i, j;
-
- jump_to_P2();
- for (i = 0; i < CACHE_OC_NUM_ENTRIES; i++) {
- for (j = 0; j < CACHE_OC_NUM_WAYS; j++) {
- addr = CACHE_OC_ADDRESS_ARRAY
- | (j << CACHE_OC_WAY_SHIFT)
- | (i << CACHE_OC_ENTRY_SHIFT);
- data = inl(addr);
- if (data & CACHE_UPDATED) {
- data &= ~CACHE_UPDATED;
- outl(data, addr);
- }
- }
- }
- back_to_P1();
-}
-
-
-#define CACHE_ENABLE 0
-#define CACHE_DISABLE 1
-
-int cache_control(unsigned int cmd)
-{
- unsigned long ccr;
-
- jump_to_P2();
- ccr = inl(CCR);
-
- if (ccr & CCR_CACHE_ENABLE)
- cache_wback_all();
-
- if (cmd == CACHE_DISABLE)
- outl(CCR_CACHE_STOP, CCR);
- else
- outl(CCR_CACHE_INIT, CCR);
- back_to_P1();
-
- return 0;
-}
diff --git a/arch/sh/cpu/sh3/cpu.c b/arch/sh/cpu/sh3/cpu.c
index 494f908f64e..ea0006a6505 100644
--- a/arch/sh/cpu/sh3/cpu.c
+++ b/arch/sh/cpu/sh3/cpu.c
@@ -66,9 +66,3 @@ int dcache_status(void)
{
return 0;
}
-
-void relocate_code(ulong start_addr_sp, gd_t *new_gd, ulong relocaaddr)
-{
- /* TODO(sh maintainer): Implement this */
- while (1);
-}
diff --git a/arch/sh/cpu/sh3/start.S b/arch/sh/cpu/sh3/start.S
deleted file mode 100644
index 9ed7198f2b6..00000000000
--- a/arch/sh/cpu/sh3/start.S
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * (C) Copyright 2007
- * Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
- *
- * (C) Copyright 2007
- * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <asm-offsets.h>
-#include <config.h>
-
- .text
- .align 2
-
- .global _start
-_sh_start:
- mov.l ._lowlevel_init, r0
-100: bsrf r0
- nop
-
- bsr 1f
- nop
-1: sts pr, r5
- mov.l ._reloc_dst, r4
- add #(_sh_start-1b), r5
- mov.l ._reloc_dst_end, r6
-
-2: mov.l @r5+, r1
- mov.l r1, @r4
- add #4, r4
- cmp/hs r6, r4
- bf 2b
-
- mov.l ._bss_start, r4
- mov.l ._bss_end, r5
- mov #0, r1
-
-3: mov.l r1, @r4 /* bss clear */
- add #4, r4
- cmp/hs r5, r4
- bf 3b
-
- mov.l ._gd_init, r13 /* global data */
- mov.l ._stack_init, r15 /* stack */
-
- #TODO(sh maintainer): Fix this up to call the correct code
- #mov.l ._sh_generic_init, r0
- #jsr @r0
- nop
-
-loop:
- bra loop
-
- .align 2
-
-._lowlevel_init: .long (lowlevel_init - (100b + 4))
-._reloc_dst: .long reloc_dst
-._reloc_dst_end: .long reloc_dst_end
-._bss_start: .long bss_start
-._bss_end: .long bss_end
-._gd_init: .long (_sh_start - GENERATED_GBL_DATA_SIZE)
-._stack_init: .long (_sh_start - GENERATED_GBL_DATA_SIZE - CONFIG_SYS_MALLOC_LEN - 16)
-#._sh_generic_init: .long sh_generic_init
diff --git a/arch/sh/cpu/sh4/Makefile b/arch/sh/cpu/sh4/Makefile
index 38c6188c383..976994b0828 100644
--- a/arch/sh/cpu/sh4/Makefile
+++ b/arch/sh/cpu/sh4/Makefile
@@ -8,5 +8,4 @@
# SPDX-License-Identifier: GPL-2.0+
#
-extra-y = start.o
obj-y = cpu.o interrupts.o watchdog.o cache.o
diff --git a/arch/sh/cpu/sh4/cache.c b/arch/sh/cpu/sh4/cache.c
index e1ee970a91c..6175c67e47a 100644
--- a/arch/sh/cpu/sh4/cache.c
+++ b/arch/sh/cpu/sh4/cache.c
@@ -1,50 +1,15 @@
/*
- * (C) Copyright 2007
- * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
+ * (C) Copyright 2016 Vladimir Zapolskiy <vz@mleia.com>
+ * (C) Copyright 2007 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
-#include <asm/processor.h>
#include <asm/io.h>
-
-/*
- * Jump to P2 area.
- * When handling TLB or caches, we need to do it from P2 area.
- */
-#define jump_to_P2() \
- do { \
- unsigned long __dummy; \
- __asm__ __volatile__( \
- "mov.l 1f, %0\n\t" \
- "or %1, %0\n\t" \
- "jmp @%0\n\t" \
- " nop\n\t" \
- ".balign 4\n" \
- "1: .long 2f\n" \
- "2:" \
- : "=&r" (__dummy) \
- : "r" (0x20000000)); \
- } while (0)
-
-/*
- * Back to P1 area.
- */
-#define back_to_P1() \
- do { \
- unsigned long __dummy; \
- __asm__ __volatile__( \
- "nop;nop;nop;nop;nop;nop;nop\n\t" \
- "mov.l 1f, %0\n\t" \
- "jmp @%0\n\t" \
- " nop\n\t" \
- ".balign 4\n" \
- "1: .long 2f\n" \
- "2:" \
- : "=&r" (__dummy)); \
- } while (0)
+#include <asm/processor.h>
+#include <asm/system.h>
#define CACHE_VALID 1
#define CACHE_UPDATED 2
@@ -53,10 +18,10 @@ static inline void cache_wback_all(void)
{
unsigned long addr, data, i, j;
- jump_to_P2();
- for (i = 0; i < CACHE_OC_NUM_ENTRIES; i++){
+ for (i = 0; i < CACHE_OC_NUM_ENTRIES; i++) {
for (j = 0; j < CACHE_OC_NUM_WAYS; j++) {
- addr = CACHE_OC_ADDRESS_ARRAY | (j << CACHE_OC_WAY_SHIFT)
+ addr = CACHE_OC_ADDRESS_ARRAY
+ | (j << CACHE_OC_WAY_SHIFT)
| (i << CACHE_OC_ENTRY_SHIFT);
data = inl(addr);
if (data & CACHE_UPDATED) {
@@ -65,14 +30,12 @@ static inline void cache_wback_all(void)
}
}
}
- back_to_P1();
}
-
#define CACHE_ENABLE 0
#define CACHE_DISABLE 1
-int cache_control(unsigned int cmd)
+static int cache_control(unsigned int cmd)
{
unsigned long ccr;
@@ -97,7 +60,7 @@ void flush_dcache_range(unsigned long start, unsigned long end)
start &= ~(L1_CACHE_BYTES - 1);
for (v = start; v < end; v += L1_CACHE_BYTES) {
- asm volatile ("ocbwb %0" : /* no output */
+ asm volatile ("ocbp %0" : /* no output */
: "m" (__m(v)));
}
}
@@ -112,3 +75,36 @@ void invalidate_dcache_range(unsigned long start, unsigned long end)
: "m" (__m(v)));
}
}
+
+void flush_cache(unsigned long addr, unsigned long size)
+{
+ flush_dcache_range(addr , addr + size);
+}
+
+void icache_enable(void)
+{
+ cache_control(CACHE_ENABLE);
+}
+
+void icache_disable(void)
+{
+ cache_control(CACHE_DISABLE);
+}
+
+int icache_status(void)
+{
+ return 0;
+}
+
+void dcache_enable(void)
+{
+}
+
+void dcache_disable(void)
+{
+}
+
+int dcache_status(void)
+{
+ return 0;
+}
diff --git a/arch/sh/cpu/sh4/cpu.c b/arch/sh/cpu/sh4/cpu.c
index de90ca777f7..aa8d4dfcd1c 100644
--- a/arch/sh/cpu/sh4/cpu.c
+++ b/arch/sh/cpu/sh4/cpu.c
@@ -9,7 +9,6 @@
#include <command.h>
#include <netdev.h>
#include <asm/processor.h>
-#include <asm/cache.h>
int checkcpu(void)
{
@@ -35,39 +34,6 @@ int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
return 0;
}
-void flush_cache (unsigned long addr, unsigned long size)
-{
- invalidate_dcache_range(addr , addr + size);
-}
-
-void icache_enable (void)
-{
- cache_control(0);
-}
-
-void icache_disable (void)
-{
- cache_control(1);
-}
-
-int icache_status (void)
-{
- return 0;
-}
-
-void dcache_enable (void)
-{
-}
-
-void dcache_disable (void)
-{
-}
-
-int dcache_status (void)
-{
- return 0;
-}
-
int cpu_eth_init(bd_t *bis)
{
#ifdef CONFIG_SH_ETHER
@@ -75,9 +41,3 @@ int cpu_eth_init(bd_t *bis)
#endif
return 0;
}
-
-void relocate_code(ulong start_addr_sp, gd_t *new_gd, ulong relocaaddr)
-{
- /* TODO(sh maintainer): Implement this */
- while (1);
-}
diff --git a/arch/sh/cpu/sh4/start.S b/arch/sh/cpu/sh4/start.S
deleted file mode 100644
index 77fc221aa50..00000000000
--- a/arch/sh/cpu/sh4/start.S
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * (C) Copyright 2007, 2010
- * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <asm-offsets.h>
-#include <config.h>
-
- .text
- .align 2
-
- .global _start
-_sh_start:
- mov.l ._lowlevel_init, r0
-100: bsrf r0
- nop
-
- bsr 1f
- nop
-1: sts pr, r5
- mov.l ._reloc_dst, r4
- add #(_sh_start-1b), r5
- mov.l ._reloc_dst_end, r6
-
-2: mov.l @r5+, r1
- mov.l r1, @r4
- add #4, r4
- cmp/hs r6, r4
- bf 2b
-
- mov.l ._bss_start, r4
- mov.l ._bss_end, r5
- mov #0, r1
-
-3: mov.l r1, @r4 /* bss clear */
- add #4, r4
- cmp/hs r5, r4
- bf 3b
-
- mov.l ._gd_init, r13 /* global data */
- mov.l ._stack_init, r15 /* stack */
-
- #TODO(sh maintainer): Fix this up to call the correct code
- #mov.l ._sh_generic_init, r0
- #jsr @r0
- nop
-
-loop:
- bra loop
-
- .align 2
-
-._lowlevel_init: .long (lowlevel_init - (100b + 4))
-._reloc_dst: .long reloc_dst
-._reloc_dst_end: .long reloc_dst_end
-._bss_start: .long bss_start
-._bss_end: .long bss_end
-._gd_init: .long (_sh_start - GENERATED_GBL_DATA_SIZE)
-._stack_init: .long (_sh_start - GENERATED_GBL_DATA_SIZE - CONFIG_SYS_MALLOC_LEN - 16)
-#._sh_generic_init: .long sh_generic_init
diff --git a/arch/sh/cpu/u-boot.lds b/arch/sh/cpu/u-boot.lds
index 78611c21e67..bbf9ff485f3 100644
--- a/arch/sh/cpu/u-boot.lds
+++ b/arch/sh/cpu/u-boot.lds
@@ -1,26 +1,27 @@
/*
- * Copyright (C) 2007
- * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
- *
- * Copyright (C) 2008-2009
- * Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
- *
- * Copyright (C) 2008
- * Mark Jonas <mark.jonas@de.bosch.com>
+ * Copyright (C) 2016 Vladimir Zapolskiy <vz@mleia.com>
+ * Copyright (C) 2008-2009 Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
+ * Copyright (C) 2008 Mark Jonas <mark.jonas@de.bosch.com>
+ * Copyright (C) 2007 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
*
* SPDX-License-Identifier: GPL-2.0+
*/
+#include "config.h"
+
OUTPUT_FORMAT("elf32-sh-linux", "elf32-sh-linux", "elf32-sh-linux")
OUTPUT_ARCH(sh)
+
+MEMORY
+{
+ ram : ORIGIN = CONFIG_SYS_SDRAM_BASE, LENGTH = CONFIG_SYS_SDRAM_SIZE
+}
+
ENTRY(_start)
SECTIONS
{
- /*
- * entry and reloct_dst will be provided via ldflags
- */
- . = .;
+ reloc_dst = .;
PROVIDE (_ftext = .);
PROVIDE (_fcode = .);
@@ -29,6 +30,8 @@ SECTIONS
.text :
{
KEEP(*/start.o (.text))
+ KEEP(CONFIG_BOARDDIR/lowlevel_init.o (.text .spiboot1.text))
+ KEEP(*(.spiboot2.text))
. = ALIGN(8192);
common/env_embedded.o (.ppcenv)
. = ALIGN(8192);
@@ -36,13 +39,13 @@ SECTIONS
. = ALIGN(8192);
*(.text)
. = ALIGN(4);
- } =0xFF
+ } >ram =0xFF
PROVIDE (_ecode = .);
.rodata :
{
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
. = ALIGN(4);
- }
+ } >ram
PROVIDE (_etext = .);
@@ -51,25 +54,23 @@ SECTIONS
{
*(.data)
. = ALIGN(4);
- }
+ } >ram
PROVIDE (_edata = .);
PROVIDE (_fgot = .);
.got :
{
- *(.got)
+ *(.got.plt) *(.got)
. = ALIGN(4);
- }
+ } >ram
PROVIDE (_egot = .);
-
.u_boot_list : {
KEEP(*(SORT(.u_boot_list*)));
- }
+ } >ram
PROVIDE (__init_end = .);
PROVIDE (reloc_dst_end = .);
- /* _reloc_dst_end = .; */
PROVIDE (bss_start = .);
PROVIDE (__bss_start = .);
@@ -77,8 +78,7 @@ SECTIONS
{
*(.bss)
. = ALIGN(4);
- }
+ } >ram
PROVIDE (bss_end = .);
-
PROVIDE (__bss_end = .);
}
diff --git a/arch/sh/include/asm/cache.h b/arch/sh/include/asm/cache.h
index abaf4050c39..b548a35f4c6 100644
--- a/arch/sh/include/asm/cache.h
+++ b/arch/sh/include/asm/cache.h
@@ -3,8 +3,6 @@
#if defined(CONFIG_CPU_SH4)
-int cache_control(unsigned int cmd);
-
#define L1_CACHE_BYTES 32
struct __large_struct { unsigned long buf[100]; };
diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index 5dc27bebd50..5cb000cada3 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -68,13 +68,6 @@ extern void __raw_readsl(unsigned int addr, void *data, int longlen);
#define __raw_base_readl(base, off) __arch_base_getl(base, off)
/*
- * Now, pick up the machine-defined IO definitions
- */
-#if 0 /* XXX###XXX */
-#include <asm/arch/io.h>
-#endif /* XXX###XXX */
-
-/*
* IO port access primitives
* -------------------------
*
@@ -82,9 +75,6 @@ extern void __raw_readsl(unsigned int addr, void *data, int longlen);
* mapped. Note that these are defined to perform little endian accesses
* only. Their primary purpose is to access PCI and ISA peripherals.
*
- * The machine specific io.h include defines __io to translate an "IO"
- * address to a memory address.
- *
* Note that we prevent GCC re-ordering or caching values in expressions
* by introducing sequence points into the in*() definitions. Note that
* __raw_* do not guarantee this behaviour.
diff --git a/arch/sh/lib/Makefile b/arch/sh/lib/Makefile
index c5cf89f4934..473cf0de2d8 100644
--- a/arch/sh/lib/Makefile
+++ b/arch/sh/lib/Makefile
@@ -5,7 +5,9 @@
# SPDX-License-Identifier: GPL-2.0+
#
+extra-y += start.o
+obj-y += board.o
obj-$(CONFIG_CMD_BOOTM) += bootm.o
ifeq ($(CONFIG_CPU_SH2),y)
obj-y += time_sh2.o
diff --git a/arch/sh/lib/board.c b/arch/sh/lib/board.c
new file mode 100644
index 00000000000..aa967c04e7a
--- /dev/null
+++ b/arch/sh/lib/board.c
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2016 Vladimir Zapolskiy <vz@mleia.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int dram_init(void)
+{
+ gd->ram_size = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
+ CONFIG_SYS_SDRAM_SIZE);
+
+ return 0;
+}
+
+void relocate_code(ulong start_addr_sp, gd_t *new_gd, ulong relocaddr)
+{
+ void (*reloc_board_init_r)(gd_t *gd, ulong dest) = board_init_r;
+
+ if (new_gd->reloc_off) {
+ memcpy((void *)new_gd->relocaddr,
+ (void *)(new_gd->relocaddr - new_gd->reloc_off),
+ new_gd->mon_len);
+
+ reloc_board_init_r += new_gd->reloc_off;
+ }
+
+ __asm__ __volatile__("mov.l %0, r15\n" : : "m" (new_gd->start_addr_sp));
+
+ while (1)
+ reloc_board_init_r(new_gd, 0x0);
+}
diff --git a/arch/sh/cpu/sh2/start.S b/arch/sh/lib/start.S
index 6171edcce29..37d38d5fb84 100644
--- a/arch/sh/cpu/sh2/start.S
+++ b/arch/sh/lib/start.S
@@ -1,7 +1,7 @@
/*
- * Copyright (C) 2007,2008 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
- * Copyright (C) 2008 Renesas Solutions Corp.
-
+ * Copyright (C) 2016 Vladimir Zapolskiy <vz@mleia.com>
+ * Copyright (C) 2007, 2010 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
+ *
* SPDX-License-Identifier: GPL-2.0+
*/
@@ -12,20 +12,22 @@
.align 2
.global _start
-_sh_start:
- .long 0x00000010 /* Ppower ON reset PC*/
+_start:
+#ifdef CONFIG_CPU_SH2
+ .long 0x00000010 /* Ppower ON reset PC*/
.long 0x00000000
- .long 0x00000010 /* Manual reset PC */
+ .long 0x00000010 /* Manual reset PC */
.long 0x00000000
-_init:
+#endif
mov.l ._lowlevel_init, r0
100: bsrf r0
nop
+
bsr 1f
nop
1: sts pr, r5
mov.l ._reloc_dst, r4
- add #(_sh_start-1b), r5
+ add #(_start-1b), r5
mov.l ._reloc_dst_end, r6
2: mov.l @r5+, r1
@@ -46,10 +48,9 @@ _init:
mov.l ._gd_init, r13 /* global data */
mov.l ._stack_init, r15 /* stack */
- #TODO(sh maintainer): Fix this up to call the correct code
- #mov.l ._sh_generic_init, r0
- #jsr @r0
- nop
+ mov.l ._sh_generic_init, r0
+ jsr @r0
+ mov #0, r4
loop:
bra loop
@@ -57,10 +58,10 @@ loop:
.align 2
._lowlevel_init: .long (lowlevel_init - (100b + 4))
-._reloc_dst: .long reloc_dst
+._reloc_dst: .long _start
._reloc_dst_end: .long reloc_dst_end
._bss_start: .long bss_start
._bss_end: .long bss_end
-._gd_init: .long (_sh_start - GENERATED_GBL_DATA_SIZE)
-._stack_init: .long (_sh_start - GENERATED_GBL_DATA_SIZE - CONFIG_SYS_MALLOC_LEN - 16)
-#._sh_generic_init: .long sh_generic_init
+._gd_init: .long (_start - GENERATED_GBL_DATA_SIZE)
+._stack_init: .long (_start - GENERATED_GBL_DATA_SIZE - CONFIG_SYS_MALLOC_LEN - 16)
+._sh_generic_init: .long board_init_f
generated by cgit v1.2.3 (git 2.0.4) at 2025-08-03 03:11:24 +0000