diff options
author | Michal Simek <michal.simek@xilinx.com> | 2018-01-10 09:36:09 +0100 |
---|---|---|
committer | Michal Simek <michal.simek@xilinx.com> | 2018-01-30 14:29:18 +0100 |
commit | 2ad341ed7d90e007af8e878424f7b6e4f24d90ac (patch) | |
tree | 5e90283812fc345ef490284813528bffe83d9b64 /arch/arm/cpu | |
parent | 88f05a926d52a4b05eac2e325bb600fa83f8eee1 (diff) |
arm64: zynqmp: Prepare psu_init rework
Move generic functions to common location psu_spl_init.c. Function
declarations are added to private header.
These changes are done in connection to the fact that still files from
HDF can be copied over and compilation should pass.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'arch/arm/cpu')
-rw-r--r-- | arch/arm/cpu/armv8/zynqmp/Makefile | 1 | ||||
-rw-r--r-- | arch/arm/cpu/armv8/zynqmp/psu_spl_init.c | 80 | ||||
-rw-r--r-- | arch/arm/cpu/armv8/zynqmp/spl.c | 9 |
3 files changed, 81 insertions, 9 deletions
diff --git a/arch/arm/cpu/armv8/zynqmp/Makefile b/arch/arm/cpu/armv8/zynqmp/Makefile index 72dee3ded4..dde1a0f658 100644 --- a/arch/arm/cpu/armv8/zynqmp/Makefile +++ b/arch/arm/cpu/armv8/zynqmp/Makefile @@ -9,3 +9,4 @@ obj-y += clk.o obj-y += cpu.o obj-$(CONFIG_MP) += mp.o obj-$(CONFIG_SPL_BUILD) += spl.o handoff.o +obj-$(CONFIG_ZYNQMP_PSU_INIT_ENABLED) += psu_spl_init.o diff --git a/arch/arm/cpu/armv8/zynqmp/psu_spl_init.c b/arch/arm/cpu/armv8/zynqmp/psu_spl_init.c new file mode 100644 index 0000000000..28d39570b3 --- /dev/null +++ b/arch/arm/cpu/armv8/zynqmp/psu_spl_init.c @@ -0,0 +1,80 @@ +/* + * Copyright 2018 Xilinx, Inc. + * + * Michal Simek <michal.simek@xilinx.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include <common.h> +#include <asm/io.h> +#include <asm/arch/psu_init_gpl.h> + +#define PSU_MASK_POLL_TIME 1100000 + +int __maybe_unused mask_pollonvalue(unsigned long add, u32 mask, u32 value) +{ + int i = 0; + + while ((__raw_readl(add) & mask) != value) { + if (i == PSU_MASK_POLL_TIME) + return 0; + i++; + } + return 1; +} + +__weak int mask_poll(u32 add, u32 mask) +{ + int i = 0; + unsigned long addr = add; + + while (!(__raw_readl(addr) & mask)) { + if (i == PSU_MASK_POLL_TIME) + return 0; + i++; + } + return 1; +} + +__weak u32 mask_read(u32 add, u32 mask) +{ + unsigned long addr = add; + + return __raw_readl(addr) & mask; +} + +__weak void mask_delay(u32 delay) +{ + udelay(delay); +} + +__weak void psu_mask_write(unsigned long offset, unsigned long mask, + unsigned long val) +{ + unsigned long regval = 0; + + regval = readl(offset); + regval &= ~(mask); + regval |= (val & mask); + writel(regval, offset); +} + +__weak void prog_reg(unsigned long addr, unsigned long mask, + unsigned long shift, unsigned long value) +{ + int rdata = 0; + + rdata = readl(addr); + rdata = rdata & (~mask); + rdata = rdata | (value << shift); + writel(rdata, addr); +} + +__weak int psu_init(void) +{ + /* + * This function is overridden by the one in + * board/xilinx/zynqmp/(platform)/psu_init_gpl.c, if it exists. + */ + return -1; +} diff --git a/arch/arm/cpu/armv8/zynqmp/spl.c b/arch/arm/cpu/armv8/zynqmp/spl.c index 41ca74a2be..bc7313a88b 100644 --- a/arch/arm/cpu/armv8/zynqmp/spl.c +++ b/arch/arm/cpu/armv8/zynqmp/spl.c @@ -129,15 +129,6 @@ u32 spl_boot_mode(const u32 boot_device) } } -__weak int psu_init(void) -{ - /* - * This function is overridden by the one in - * board/xilinx/zynqmp/(platform)/psu_init_gpl.c, if it exists. - */ - return -1; -} - #ifdef CONFIG_SPL_OS_BOOT int spl_start_uboot(void) { |