diff options
| author |   Yang Zhang <yang.z.zhang@intel.com> | 2015-08-28 09:58:54 +0800 |
|---|---|---|
| committer | Yang Zhang <yang.z.zhang@intel.com> | 2015-09-01 12:44:00 +0800 |
| commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
| tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/u-boot/board/korat/init.S | |
| parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) | |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/u-boot/board/korat/init.S')
| -rw-r--r-- | qemu/roms/u-boot/board/korat/init.S | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/korat/init.S b/qemu/roms/u-boot/board/korat/init.S new file mode 100644 index 000000000..20c5bddf6 --- /dev/null +++ b/qemu/roms/u-boot/board/korat/init.S @@ -0,0 +1,80 @@ +/* + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <asm-offsets.h> +#include <ppc_asm.tmpl> +#include <asm/mmu.h> +#include <config.h> + +/************************************************************************** + * 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( 0xF0000000, SZ_256M, 0xF0000000, 1, AC_RWX | SA_G ) + + /* + * TLB entries for SDRAM are not needed on this platform. They are + * generated dynamically in the SPD DDR2 detection routine. + */ + +#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 + 0x00000000, SZ_256M, + CONFIG_SYS_PCI_MEMBASE + 0x00000000, 1, AC_RW | SA_IG ) + + tlbentry( CONFIG_SYS_PCI_MEMBASE + 0x10000000, SZ_256M, + CONFIG_SYS_PCI_MEMBASE + 0x10000000, 1, AC_RW | SA_IG ) + + tlbentry( CONFIG_SYS_PCI_MEMBASE + 0x20000000, SZ_256M, + CONFIG_SYS_PCI_MEMBASE + 0x20000000, 1, AC_RW | SA_IG ) + + tlbentry( CONFIG_SYS_PCI_MEMBASE + 0x30000000, SZ_256M, + CONFIG_SYS_PCI_MEMBASE + 0x30000000, 1, AC_RW | SA_IG ) + + /* TLB-entry for EBC */ + tlbentry( CONFIG_SYS_CPLD_BASE, SZ_1K, CONFIG_SYS_CPLD_BASE, 1, AC_RW | SA_IG ) + + /* TLB-entry for Internal Registers & OCM */ + /* I wonder why this must be executable -- lrj@acm.org 2007-10-08 */ + tlbentry( 0xE0000000, SZ_16M, 0xE0000000, 0, AC_RWX | SA_I ) + + /*TLB-entry PCI registers*/ + tlbentry( 0xEEC00000, SZ_1K, 0xEEC00000, 1, AC_RW | SA_IG ) + + /* TLB-entry for peripherals */ + tlbentry( 0xEF000000, SZ_16M, 0xEF000000, 1, AC_RW | SA_IG) + + /* TLB-entry PCI IO Space - from sr@denx.de */ + tlbentry(0xE8000000, SZ_64K, 0xE8000000, 1, AC_RW | SA_IG) + + tlbtab_end + +#if defined(CONFIG_KORAT_PERMANENT) + .globl korat_branch_absolute +korat_branch_absolute: + mtlr r3 + blr +#endif |