diff options
| -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 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-zynqmp/psu_init_gpl.h | 27 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-zynqmp/sys_proto.h | 2 | ||||
| -rw-r--r-- | board/xilinx/zynqmp/zynqmp.c | 1 |
6 files changed, 109 insertions, 11 deletions
diff --git a/arch/arm/cpu/armv8/zynqmp/Makefile b/arch/arm/cpu/armv8/zynqmp/Makefile index 72dee3ded48..dde1a0f658f 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 00000000000..28d39570b34 --- /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 41ca74a2be2..bc7313a88bd 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) { diff --git a/arch/arm/include/asm/arch-zynqmp/psu_init_gpl.h b/arch/arm/include/asm/arch-zynqmp/psu_init_gpl.h new file mode 100644 index 00000000000..1f7d4f76596 --- /dev/null +++ b/arch/arm/include/asm/arch-zynqmp/psu_init_gpl.h @@ -0,0 +1,27 @@ +/* + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _PSU_INIT_GPL_H_ /* prevent circular inclusions */ +#define _PSU_INIT_GPL_H_ + +#include <asm/io.h> +#include <common.h> + +int mask_pollonvalue(unsigned long add, u32 mask, u32 value); + +int mask_poll(u32 add, u32 mask); + +u32 mask_read(u32 add, u32 mask); + +void mask_delay(u32 delay); + +void psu_mask_write(unsigned long offset, unsigned long mask, + unsigned long val); + +void prog_reg(unsigned long addr, unsigned long mask, + unsigned long shift, unsigned long value); + +int psu_init(void); + +#endif /* _PSU_INIT_GPL_H_ */ diff --git a/arch/arm/include/asm/arch-zynqmp/sys_proto.h b/arch/arm/include/asm/arch-zynqmp/sys_proto.h index 4dfabba80a5..084d55a2b01 100644 --- a/arch/arm/include/asm/arch-zynqmp/sys_proto.h +++ b/arch/arm/include/asm/arch-zynqmp/sys_proto.h @@ -33,8 +33,6 @@ enum { int zynq_board_read_rom_ethaddr(unsigned char *ethaddr); unsigned int zynqmp_get_silicon_version(void); -int psu_init(void); - void handoff_setup(void); void zynqmp_pmufw_version(void); diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c index 6c8254b9824..ff0b3c75f53 100644 --- a/board/xilinx/zynqmp/zynqmp.c +++ b/board/xilinx/zynqmp/zynqmp.c @@ -13,6 +13,7 @@ #include <asm/arch/clk.h> #include <asm/arch/hardware.h> #include <asm/arch/sys_proto.h> +#include <asm/arch/psu_init_gpl.h> #include <asm/io.h> #include <usb.h> #include <dwc3-uboot.h> |