Merge tag 'usb-5.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
[linux/fpc-iii.git] / arch / arm / include / debug / zynq.S
blob5d42cc35ecf3dd98dd20c81df59bf7a487dd74c4
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Debugging macro include header
4  *
5  *  Copyright (C) 2011 Xilinx
6  */
7 #define UART_CR_OFFSET          0x00  /* Control Register [8:0] */
8 #define UART_SR_OFFSET          0x2C  /* Channel Status [11:0] */
9 #define UART_FIFO_OFFSET        0x30  /* FIFO [15:0] or [7:0] */
11 #define UART_SR_TXFULL          0x00000010      /* TX FIFO full */
12 #define UART_SR_TXEMPTY         0x00000008      /* TX FIFO empty */
14 #define UART0_PHYS              0xE0000000
15 #define UART0_VIRT              0xF0800000
16 #define UART1_PHYS              0xE0001000
17 #define UART1_VIRT              0xF0801000
19 #if IS_ENABLED(CONFIG_DEBUG_ZYNQ_UART1)
20 # define LL_UART_PADDR          UART1_PHYS
21 # define LL_UART_VADDR          UART1_VIRT
22 #else
23 # define LL_UART_PADDR          UART0_PHYS
24 # define LL_UART_VADDR          UART0_VIRT
25 #endif
27                 .macro  addruart, rp, rv, tmp
28                 ldr     \rp, =LL_UART_PADDR     @ physical
29                 ldr     \rv, =LL_UART_VADDR     @ virtual
30                 .endm
32                 .macro  senduart,rd,rx
33                 strb    \rd, [\rx, #UART_FIFO_OFFSET]   @ TXDATA
34                 .endm
36                 .macro  waituartcts,rd,rx
37                 .endm
39                 .macro  waituarttxrdy,rd,rx
40 1001:           ldr     \rd, [\rx, #UART_SR_OFFSET]
41 ARM_BE8(        rev     \rd, \rd )
42                 tst     \rd, #UART_SR_TXEMPTY
43                 beq     1001b
44                 .endm
46                 .macro  busyuart,rd,rx
47 1002:           ldr     \rd, [\rx, #UART_SR_OFFSET]     @ get status register
48 ARM_BE8(        rev     \rd, \rd )
49                 tst     \rd, #UART_SR_TXFULL            @
50                 bne     1002b                   @ wait if FIFO is full
51                 .endm