From 9d23fc584c4b7b8bb9ecbee48920b1b04b08fa1b Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Wed, 12 Nov 2008 13:18:19 +0100
Subject: [PATCH 1/4] MIPS: Add onenand_init() to board.c and move nand_init()
This patch adds a call to onenand_init() for OneNAND support and moves
the nand_init() call to an earlier place, so that the environment can
be used from NAND and OneNAND.
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
---
lib_mips/board.c | 15 ++++++++++-----
1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/lib_mips/board.c b/lib_mips/board.c
index 9c997f1908..5133b8a5dc 100644
--- a/lib_mips/board.c
+++ b/lib_mips/board.c
@@ -30,6 +30,7 @@
#include <net.h>
#include <environment.h>
#include <nand.h>
+#include <onenand_uboot.h>
#include <spi.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -378,6 +379,15 @@ void board_init_r (gd_t *id, ulong dest_addr)
mem_malloc_init();
malloc_bin_reloc();
+#ifdef CONFIG_CMD_NAND
+ puts ("NAND: ");
+ nand_init (); /* go init the NAND */
+#endif
+
+#if defined(CONFIG_CMD_ONENAND)
+ onenand_init();
+#endif
+
/* relocate environment function pointers etc. */
env_relocate();
@@ -419,11 +429,6 @@ void board_init_r (gd_t *id, ulong dest_addr)
}
#endif
-#ifdef CONFIG_CMD_NAND
- puts ("NAND: ");
- nand_init (); /* go init the NAND */
-#endif
-
#ifdef CONFIG_CMD_SPI
puts ("SPI: ");
spi_init (); /* go init the SPI */
From db08ecaa6eb8176904b3bae103a85ee8f735dc40 Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Wed, 12 Nov 2008 13:18:02 +0100
Subject: [PATCH 2/4] MIPS: Add board_early_init_f() to init_sequence
This patch adds the board_early_init_f() call to the MIPS init
sequence. A weak dummy implementation is also added which can be
overridden by a board specific version.
This will be used by the upcoming VCTH board support.
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
---
lib_mips/board.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/lib_mips/board.c b/lib_mips/board.c
index 5133b8a5dc..dfe683161f 100644
--- a/lib_mips/board.c
+++ b/lib_mips/board.c
@@ -72,6 +72,15 @@ static ulong mem_malloc_brk;
*/
unsigned long mips_io_port_base = -1;
+int __board_early_init_f(void)
+{
+ /*
+ * Nothing to do in this dummy implementation
+ */
+ return 0;
+}
+int board_early_init_f(void) __attribute__((weak, alias("__board_early_init_f")));
+
/*
* The Malloc area is immediately below the monitor copy in DRAM
*/
@@ -169,6 +178,7 @@ static int init_baudrate (void)
typedef int (init_fnc_t) (void);
init_fnc_t *init_sequence[] = {
+ board_early_init_f,
timer_init,
env_init, /* initialize environment */
#ifdef CONFIG_INCA_IP
From 44174343688dba32571a34550dba08971c65fef1 Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Tue, 18 Nov 2008 16:36:22 +0100
Subject: [PATCH 3/4] MIPS: Add CONFIG_SKIP_LOWLEVEL_INIT
This patch adds the CONFIG_SKIP_LOWLEVEL_INIT option to start.S. This
enables support for boards where the lowlevel initialization is
already done when U-Boot runs (e.g. via OnChip ROM).
This will be used in the upcoming VCTH board support.
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
---
cpu/mips/start.S | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/cpu/mips/start.S b/cpu/mips/start.S
index 6a22302a08..f6069b3eea 100644
--- a/cpu/mips/start.S
+++ b/cpu/mips/start.S
@@ -243,9 +243,11 @@ reset:
mtc0 zero, CP0_COUNT
mtc0 zero, CP0_COMPARE
+#if !defined(CONFIG_SKIP_LOWLEVEL_INIT)
/* CONFIG0 register */
li t0, CONF_CM_UNCACHED
mtc0 t0, CP0_CONFIG
+#endif /* !CONFIG_SKIP_LOWLEVEL_INIT */
/* Initialize $gp.
*/
@@ -255,6 +257,7 @@ reset:
1:
lw gp, 0(ra)
+#if !defined(CONFIG_SKIP_LOWLEVEL_INIT)
/* Initialize any external memory.
*/
la t9, lowlevel_init
@@ -271,6 +274,7 @@ reset:
*/
li t0, CONF_CM_CACHABLE_NONCOHERENT
mtc0 t0, CP0_CONFIG
+#endif /* !CONFIG_SKIP_LOWLEVEL_INIT */
/* Set up temporary stack.
*/
From 71fa0714fe5134bc8718c38d5261d267e88582ba Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Tue, 18 Nov 2008 16:36:12 +0100
Subject: [PATCH 4/4] MIPS: Flush data cache upon relocation
This patch now adds a flush to the data cache upon relocation. The
current implementation is missing this. Only a comment states that it
should be done. So let's really do it now.
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
---
cpu/mips/start.S | 28 +++++++++++++++++++++-------
1 file changed, 21 insertions(+), 7 deletions(-)
diff --git a/cpu/mips/start.S b/cpu/mips/start.S
index f6069b3eea..57db589b94 100644
--- a/cpu/mips/start.S
+++ b/cpu/mips/start.S
@@ -311,6 +311,7 @@ relocate_code:
la t3, in_ram
lw t2, -12(t3) /* t2 <-- uboot_end_data */
move t1, a2
+ move s2, a2 /* s2 <-- destination address */
/*
* Fix $gp:
@@ -320,13 +321,21 @@ relocate_code:
move t6, gp
sub gp, CONFIG_SYS_MONITOR_BASE
add gp, a2 /* gp now adjusted */
- sub t6, gp, t6 /* t6 <-- relocation offset */
+ sub s1, gp, t6 /* s1 <-- relocation offset */
/*
* t0 = source address
* t1 = target address
* t2 = source end address
*/
+
+ /*
+ * Save destination address and size for later usage in flush_cache()
+ */
+ move s0, a1 /* save gd in s0 */
+ move a0, t1 /* a0 <-- destination addr */
+ sub a1, t2, t0 /* a1 <-- size */
+
/* On the purple board we copy the code earlier in a special way
* in order to solve flash problems
*/
@@ -342,9 +351,14 @@ relocate_code:
/* If caches were enabled, we would have to flush them here.
*/
+ /* a0 & a1 are already set up for flush_cache(start, size) */
+ la t9, flush_cache
+ jalr t9
+ nop
+
/* Jump to where we've relocated ourselves.
*/
- addi t0, a2, in_ram - _start
+ addi t0, s2, in_ram - _start
jr t0
nop
@@ -371,7 +385,7 @@ in_ram:
1:
lw t1, 0(t4)
beqz t1, 2f
- add t1, t6
+ add t1, s1
sw t1, 0(t4)
2:
addi t2, 1
@@ -382,8 +396,8 @@ in_ram:
*/
lw t1, -12(t0) /* t1 <-- uboot_end_data */
lw t2, -8(t0) /* t2 <-- uboot_end */
- add t1, t6 /* adjust pointers */
- add t2, t6
+ add t1, s1 /* adjust pointers */
+ add t2, s1
sub t1, 4
1:
@@ -391,10 +405,10 @@ in_ram:
bltl t1, t2, 1b
sw zero, 0(t1) /* delay slot */
- move a0, a1
+ move a0, s0 /* a0 <-- gd */
la t9, board_init_r
jr t9
- move a1, a2 /* delay slot */
+ move a1, s2 /* delay slot */
.end relocate_code