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@h - ori r3, r3, CONFIG_SYS_MONITOR_BASE@l + lis r3, CONFIG_SYS_MONITOR_BASE_EARLY@h + ori r3, r3, CONFIG_SYS_MONITOR_BASE_EARLY@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@h - ori r4, r4, CONFIG_SYS_IBAT6L@l - lis r3, CONFIG_SYS_IBAT6U@h - ori r3, r3, CONFIG_SYS_IBAT6U@l + lis r4, CONFIG_SYS_IBAT6L_EARLY@h + ori r4, r4, CONFIG_SYS_IBAT6L_EARLY@l + lis r3, CONFIG_SYS_IBAT6U_EARLY@h + ori r3, r3, CONFIG_SYS_IBAT6U_EARLY@l mtspr IBAT6L, r4 mtspr IBAT6U, r3 isync
/* DBAT 6 */ - lis r4, CONFIG_SYS_DBAT6L@h - ori r4, r4, CONFIG_SYS_DBAT6L@l - lis r3, CONFIG_SYS_DBAT6U@h - ori r3, r3, CONFIG_SYS_DBAT6U@l + lis r4, CONFIG_SYS_DBAT6L_EARLY@h + ori r4, r4, CONFIG_SYS_DBAT6L_EARLY@l + lis r3, CONFIG_SYS_DBAT6U_EARLY@h + ori r3, r3, CONFIG_SYS_DBAT6U_EARLY@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