/* * SPDX-License-Identifier: GPL-2.0+ */ #include #include #include #include /* * TLB TABLE * * This table is used by the cpu boot code to setup the initial tlb * entries. Rather than make broad assumptions in the cpu source tree, * this table lets each board set things up however they like. * * Pointer to the table is returned in r1 * */ .section .bootpg,"ax" .globl tlbtab tlbtab: tlbtab_start /* * BOOT_CS (FLASH) must be first. Before relocation SA_I can be off to use the * speed up boot process. It is patched after relocation to enable SA_I */ tlbentry( CONFIG_SYS_BOOT_BASE_ADDR, SZ_256M, CONFIG_SYS_BOOT_BASE_ADDR, 1, AC_RWX | SA_G ) /* TLB entries for DDR2 SDRAM are generated dynamically */ #ifdef CONFIG_SYS_INIT_RAM_DCACHE /* TLB-entry for init-ram in dcache (SA_I must be turned off!) */ tlbentry( CONFIG_SYS_INIT_RAM_ADDR, SZ_64K, CONFIG_SYS_INIT_RAM_ADDR, 0, AC_RWX | SA_G ) #endif /* TLB-entry for PCI Memory */ tlbentry( CONFIG_SYS_PCI_MEMBASE, SZ_256M, CONFIG_SYS_PCI_MEMBASE, 1, AC_RW | SA_IG ) tlbentry( CONFIG_SYS_PCI_MEMBASE1, SZ_256M, CONFIG_SYS_PCI_MEMBASE1, 1, AC_RW | SA_IG ) tlbentry( CONFIG_SYS_PCI_MEMBASE2, SZ_256M, CONFIG_SYS_PCI_MEMBASE2, 1, AC_RW | SA_IG ) tlbentry( CONFIG_SYS_PCI_MEMBASE3, SZ_256M, CONFIG_SYS_PCI_MEMBASE3, 1, AC_RW | SA_IG ) /* TLB-entries for EBC */ /* PMC440 maps EBC to 0xef000000 which is handled by the peripheral * tlb entry. * This dummy entry is only for convinience in order not to modify the * amount of entries. Currently OS/9 relies on this :-) */ tlbentry( 0xc0000000, SZ_256M, 0xc0000000, 1, AC_RWX | SA_IG ) /* TLB-entry for NAND */ tlbentry( CONFIG_SYS_NAND_ADDR, SZ_1K, CONFIG_SYS_NAND_ADDR, 1, AC_RWX | SA_IG ) /* TLB-entry for Internal Registers & OCM */ tlbentry( 0xe0000000, SZ_16M, 0xe0000000, 0, AC_RWX | SA_I ) /*TLB-entry PCI registers*/ tlbentry( 0xEEC00000, SZ_1K, 0xEEC00000, 1, AC_RWX | SA_IG ) /* TLB-entry for peripherals */ tlbentry( 0xEF000000, SZ_16M, 0xEF000000, 1, AC_RWX | SA_IG) /* TLB-entry PCI IO space */ tlbentry(0xE8000000, SZ_64K, 0xE8000000, 1, AC_RWX | SA_IG) /* TODO: what about high IO space */ tlbtab_end