[U-Boot] [PATCH 7/9] mpc86xx: Change early FLASH mapping to 1M at CONFIG_MONITOR_BASE_EARLY

Becky Bruce
2008-11-05T20:55:35Z

We define CONFIG_MONITOR_BASE_EARLY to define the initial location
of the bootpage in flash. Use this to create an early mapping
definition for the FLASH, and change the early_bats code to use this.

This change facilitates the relocation of the flash since the early
mappings are no longer tied to the final location of the flash.

Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
---
cpu/mpc86xx/start.S | 20 ++++++++++----------
include/configs/MPC8610HPCD.h | 9 +++++++++
include/configs/MPC8641HPCN.h | 12 +++++++++++-
include/configs/sbc8641d.h | 9 +++++++++
4 files changed, 39 insertions(+), 11 deletions(-)

diff --git a/cpu/mpc86xx/start.S b/cpu/mpc86xx/start.S
index 7e36801..60af3dd 100644
--- a/cpu/mpc86xx/start.S
+++ b/cpu/mpc86xx/start.S
@@ -217,8 +217,8 @@ boot_warm:
/*
* Calculate absolute address in FLASH and jump there
*------------------------------------------------------*/
- lis r3, CONFIG_SYS_MONITOR_BASE at h
- ori r3, r3, CONFIG_SYS_MONITOR_BASE at l
+ lis r3, CONFIG_SYS_MONITOR_BASE_EARLY at h
+ ori r3, r3, CONFIG_SYS_MONITOR_BASE_EARLY at l
addi r3, r3, in_flash - _start + EXC_OFF_SYS_RESET
mtlr r3
blr
@@ -398,19 +398,19 @@ early_bats:
isync

/* IBAT 6 */
- lis r4, CONFIG_SYS_IBAT6L at h
- ori r4, r4, CONFIG_SYS_IBAT6L at l
- lis r3, CONFIG_SYS_IBAT6U at h
- ori r3, r3, CONFIG_SYS_IBAT6U at l
+ lis r4, CONFIG_SYS_IBAT6L_EARLY at h
+ ori r4, r4, CONFIG_SYS_IBAT6L_EARLY at l
+ lis r3, CONFIG_SYS_IBAT6U_EARLY at h
+ ori r3, r3, CONFIG_SYS_IBAT6U_EARLY at l
mtspr IBAT6L, r4
mtspr IBAT6U, r3
isync

/* DBAT 6 */
- lis r4, CONFIG_SYS_DBAT6L at h
- ori r4, r4, CONFIG_SYS_DBAT6L at l
- lis r3, CONFIG_SYS_DBAT6U at h
- ori r3, r3, CONFIG_SYS_DBAT6U at l
+ lis r4, CONFIG_SYS_DBAT6L_EARLY at h
+ ori r4, r4, CONFIG_SYS_DBAT6L_EARLY at l
+ lis r3, CONFIG_SYS_DBAT6U_EARLY at h
+ ori r3, r3, CONFIG_SYS_DBAT6U_EARLY at l
mtspr DBAT6L, r4
mtspr DBAT6U, r3
isync
diff --git a/include/configs/MPC8610HPCD.h b/include/configs/MPC8610HPCD.h
index 4486763..f2fe4a6 100644
--- a/include/configs/MPC8610HPCD.h
+++ b/include/configs/MPC8610HPCD.h
@@ -187,6 +187,7 @@
#define CONFIG_SYS_FLASH_ERASE_TOUT 60000 /* Flash Erase Timeout (ms) */
#define CONFIG_SYS_FLASH_WRITE_TOUT 500 /* Flash Write Timeout (ms) */
#define CONFIG_SYS_MONITOR_BASE TEXT_BASE /* start of monitor */
+#define CONFIG_SYS_MONITOR_BASE_EARLY 0xfff00000 /* early monitor loc */

#define CONFIG_FLASH_CFI_DRIVER
#define CONFIG_SYS_FLASH_CFI
@@ -419,6 +420,14 @@
#define CONFIG_SYS_IBAT6L (CONFIG_SYS_FLASH_BASE | BATL_PP_RW | BATL_MEMCOHERENCE)
#define CONFIG_SYS_IBAT6U CONFIG_SYS_DBAT6U

+/* Map the last 1M of flash where we're running from reset */
+#define CONFIG_SYS_DBAT6L_EARLY (CONFIG_SYS_MONITOR_BASE_EARLY | BATL_PP_RW \
+ | BATL_CACHEINHIBIT | BATL_GUARDEDSTORAGE)
+#define CONFIG_SYS_DBAT6U_EARLY (TEXT_BASE | BATU_BL_1M | BATU_VS | BATU_VP)
+#define CONFIG_SYS_IBAT6L_EARLY (CONFIG_SYS_MONITOR_BASE_EARLY | BATL_PP_RW \
+ | BATL_MEMCOHERENCE)
+#define CONFIG_SYS_IBAT6U_EARLY CONFIG_SYS_DBAT6U_EARLY
+
/*
* BAT7 4M Cache-inhibited, guarded
* 0xe800_0000 4M PIXIS
diff --git a/include/configs/MPC8641HPCN.h b/include/configs/MPC8641HPCN.h
index 0a6d5f9..4925057 100644
--- a/include/configs/MPC8641HPCN.h
+++ b/include/configs/MPC8641HPCN.h
@@ -206,7 +206,8 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
#undef CONFIG_SYS_FLASH_CHECKSUM
#define CONFIG_SYS_FLASH_ERASE_TOUT 60000 /* Flash Erase Timeout (ms) */
#define CONFIG_SYS_FLASH_WRITE_TOUT 500 /* Flash Write Timeout (ms) */
-#define CONFIG_SYS_MONITOR_BASE TEXT_BASE /* start of monitor */
+#define CONFIG_SYS_MONITOR_BASE TEXT_BASE /* start of monitor */
+#define CONFIG_SYS_MONITOR_BASE_EARLY 0xfff00000 /* early monitor loc */

#define CONFIG_FLASH_CFI_DRIVER
#define CONFIG_SYS_FLASH_CFI
@@ -497,6 +498,15 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
| BATL_MEMCOHERENCE)
#define CONFIG_SYS_IBAT6U CONFIG_SYS_DBAT6U

+/* Map the last 1M of flash where we're running from reset */
+#define CONFIG_SYS_DBAT6L_EARLY (CONFIG_SYS_MONITOR_BASE_EARLY | BATL_PP_RW \
+ | BATL_CACHEINHIBIT | BATL_GUARDEDSTORAGE)
+#define CONFIG_SYS_DBAT6U_EARLY (TEXT_BASE | BATU_BL_1M | BATU_VS | BATU_VP)
+#define CONFIG_SYS_IBAT6L_EARLY (CONFIG_SYS_MONITOR_BASE_EARLY | BATL_PP_RW \
+ | BATL_MEMCOHERENCE)
+#define CONFIG_SYS_IBAT6U_EARLY CONFIG_SYS_DBAT6U_EARLY
+
+/* Leave BAT7 free here - it is used for various things later */
#define CONFIG_SYS_DBAT7L 0x00000000
#define CONFIG_SYS_DBAT7U 0x00000000
#define CONFIG_SYS_IBAT7L 0x00000000
diff --git a/include/configs/sbc8641d.h b/include/configs/sbc8641d.h
index e8216ea..45d8179 100644
--- a/include/configs/sbc8641d.h
+++ b/include/configs/sbc8641d.h
@@ -231,6 +231,7 @@
#define CONFIG_SYS_FLASH_ERASE_TOUT 60000 /* Flash Erase Timeout (ms) */
#define CONFIG_SYS_FLASH_WRITE_TOUT 500 /* Flash Write Timeout (ms) */
#define CONFIG_SYS_MONITOR_BASE TEXT_BASE /* start of monitor */
+#define CONFIG_SYS_MONITOR_BASE_EARLY 0xfff00000 /* early monitor loc */

#define CONFIG_FLASH_CFI_DRIVER
#define CONFIG_SYS_FLASH_CFI
@@ -463,6 +464,14 @@
#define CONFIG_SYS_IBAT6L ((CONFIG_SYS_FLASH_BASE & 0xfe000000) | BATL_PP_RW | BATL_MEMCOHERENCE)
#define CONFIG_SYS_IBAT6U CONFIG_SYS_DBAT6U

+/* Map the last 1M of flash where we're running from reset */
+#define CONFIG_SYS_DBAT6L_EARLY (CONFIG_SYS_MONITOR_BASE_EARLY | BATL_PP_RW \
+ | BATL_CACHEINHIBIT | BATL_GUARDEDSTORAGE)
+#define CONFIG_SYS_DBAT6U_EARLY (TEXT_BASE | BATU_BL_1M | BATU_VS | BATU_VP)
+#define CONFIG_SYS_IBAT6L_EARLY (CONFIG_SYS_MONITOR_BASE_EARLY | BATL_PP_RW \
+ | BATL_MEMCOHERENCE)
+#define CONFIG_SYS_IBAT6U_EARLY CONFIG_SYS_DBAT6U_EARLY
+
#define CONFIG_SYS_DBAT7L 0x00000000
#define CONFIG_SYS_DBAT7U 0x00000000
#define CONFIG_SYS_IBAT7L 0x00000000
--
1.5.5.1