YAMON-style GT64120 memory map make move UART to the new position. We need YAMON-style GT64120 memory for running Linux kernel from barebox. Signed-off-by: Antony Pavlov <antonynpavlov@xxxxxxxxx> --- .../qemu-malta/include/board/board_pbl_start.h | 42 ++++++++++++++++++++ arch/mips/mach-malta/include/mach/hardware.h | 2 +- 2 files changed, 43 insertions(+), 1 deletion(-) diff --git a/arch/mips/boards/qemu-malta/include/board/board_pbl_start.h b/arch/mips/boards/qemu-malta/include/board/board_pbl_start.h index a6c55c7..d993c2f 100644 --- a/arch/mips/boards/qemu-malta/include/board/board_pbl_start.h +++ b/arch/mips/boards/qemu-malta/include/board/board_pbl_start.h @@ -19,6 +19,15 @@ #include <asm/pbl_macros.h> +#define GT_PCI0IOLD_OFS 0x048 +#define GT_PCI0IOHD_OFS 0x050 +#define GT_PCI0M0LD_OFS 0x058 +#define GT_PCI0M0HD_OFS 0x060 +#define GT_ISD_OFS 0x068 + +#define GT_PCI0M1LD_OFS 0x080 +#define GT_PCI0M1HD_OFS 0x088 + .macro board_pbl_start .set push .set noreorder @@ -39,6 +48,39 @@ __start: mips_disable_interrupts + /* + * Load BAR registers of GT64120 as done by YAMON + * + * based on write_bootloader() in qemu.git/hw/mips_malta.c + * see GT64120 manual and qemu.git/hw/gt64xxx.c for details + * + * This is big-endian version of code! + */ + + /* move GT64120 registers to 0x1be00000 */ + li t1, 0xb4000000 + li t0, 0xdf000000 + sw t0, GT_ISD_OFS(t1) + + /* setup MEM-to-PCI0 mapping */ + li t1, 0xbbe00000 + + /* setup PCI0 io window to 0x18000000-0x181fffff */ + li t0, 0xc0000000 + sw t0, GT_PCI0IOLD_OFS(t1) + li t0, 0x40000000 + sw t0, GT_PCI0IOHD_OFS(t1) + + /* setup PCI0 mem windows */ + li t0, 0x80000000 + sw t0, GT_PCI0M0LD_OFS(t1) + li t0, 0x3f000000 + sw t0, GT_PCI0M0HD_OFS(t1) + li t0, 0xc1000000 + sw t0, GT_PCI0M1LD_OFS(t1) + li t0, 0x5e000000 + sw t0, GT_PCI0M1HD_OFS(t1) + /* cpu specific setup ... */ /* ... absent */ diff --git a/arch/mips/mach-malta/include/mach/hardware.h b/arch/mips/mach-malta/include/mach/hardware.h index 5e8e276..f6294b2 100644 --- a/arch/mips/mach-malta/include/mach/hardware.h +++ b/arch/mips/mach-malta/include/mach/hardware.h @@ -18,7 +18,7 @@ #ifndef __INCLUDE_ARCH_HARDWARE_H__ #define __INCLUDE_ARCH_HARDWARE_H__ -#define DEBUG_LL_UART_ADDR 0xb00003f8 +#define DEBUG_LL_UART_ADDR 0xb80003f8 #define DEBUG_LL_UART_SHIFT 0 /* -- 1.7.10.4 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
