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Diffstat (limited to '')
| -rw-r--r-- | arch/arm/include/debug/vf.S | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/arm/include/debug/vf.S b/arch/arm/include/debug/vf.S new file mode 100644 index 0000000000..035bcbf117 --- /dev/null +++ b/arch/arm/include/debug/vf.S @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright 2013 Freescale Semiconductor, Inc. + */ + +#define VF_UART0_BASE_ADDR 0x40027000 +#define VF_UART1_BASE_ADDR 0x40028000 +#define VF_UART2_BASE_ADDR 0x40029000 +#define VF_UART3_BASE_ADDR 0x4002a000 +#define VF_UART_BASE_ADDR(n) VF_UART##n##_BASE_ADDR +#define VF_UART_BASE(n) VF_UART_BASE_ADDR(n) +#define VF_UART_PHYSICAL_BASE VF_UART_BASE(CONFIG_DEBUG_VF_UART_PORT) + +#define VF_UART_VIRTUAL_BASE 0xfe000000 + + .macro addruart, rp, rv, tmp + ldr \rp, =VF_UART_PHYSICAL_BASE @ physical + and \rv, \rp, #0xffffff @ offset within 16MB section + add \rv, \rv, #VF_UART_VIRTUAL_BASE + .endm + + .macro senduart, rd, rx + strb \rd, [\rx, #0x7] @ Data Register + .endm + + .macro busyuart, rd, rx +1001: ldrb \rd, [\rx, #0x4] @ Status Register 1 + tst \rd, #1 << 6 @ TC + beq 1001b @ wait until transmit done + .endm + + .macro waituartcts,rd,rx + .endm + + .macro waituarttxrdy,rd,rx + .endm |