1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright 2018 Xilinx, Inc.
5 * Michal Simek <michal.simek@xilinx.com>
9 #include <asm/arch/psu_init_gpl.h>
11 #define PSU_MASK_POLL_TIME 1100000
13 int __maybe_unused mask_pollonvalue(unsigned long add, u32 mask, u32 value)
17 while ((__raw_readl(add) & mask) != value) {
18 if (i == PSU_MASK_POLL_TIME)
25 __weak int mask_poll(u32 add, u32 mask)
28 unsigned long addr = add;
30 while (!(__raw_readl(addr) & mask)) {
31 if (i == PSU_MASK_POLL_TIME)
38 __weak u32 mask_read(u32 add, u32 mask)
40 unsigned long addr = add;
42 return __raw_readl(addr) & mask;
45 __weak void mask_delay(u32 delay)
50 __weak void psu_mask_write(unsigned long offset, unsigned long mask,
53 unsigned long regval = 0;
55 regval = readl(offset);
57 regval |= (val & mask);
58 writel(regval, offset);
61 __weak void prog_reg(unsigned long addr, unsigned long mask,
62 unsigned long shift, unsigned long value)
67 rdata = rdata & (~mask);
68 rdata = rdata | (value << shift);
72 __weak int psu_init(void)
75 * This function is overridden by the one in
76 * board/xilinx/zynqmp/(platform)/psu_init_gpl.c, if it exists.