diff options
Diffstat (limited to 'arch/arm/cpu/armv7')
| -rw-r--r-- | arch/arm/cpu/armv7/zynq/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/zynq/config.mk | 7 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/zynq/cpu.c | 4 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/zynq/ddrc.c | 2 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/zynq/lowlevel_init.S | 26 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/zynq/slcr.c | 2 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/zynq/spl.c | 9 |
7 files changed, 46 insertions, 5 deletions
diff --git a/arch/arm/cpu/armv7/zynq/Makefile b/arch/arm/cpu/armv7/zynq/Makefile index 3363a3c..901f2ce 100644 --- a/arch/arm/cpu/armv7/zynq/Makefile +++ b/arch/arm/cpu/armv7/zynq/Makefile @@ -13,4 +13,5 @@ obj-y += cpu.o obj-y += ddrc.o obj-y += slcr.o obj-y += clk.o +obj-y += lowlevel_init.o obj-$(CONFIG_SPL_BUILD) += spl.o diff --git a/arch/arm/cpu/armv7/zynq/config.mk b/arch/arm/cpu/armv7/zynq/config.mk new file mode 100644 index 0000000..778a377 --- /dev/null +++ b/arch/arm/cpu/armv7/zynq/config.mk @@ -0,0 +1,7 @@ +# +# Copyright (C) 2013 - 2015 Xilinx, Inc. All rights reserved. +# +# SPDX-License-Identifier: GPL-2.0 +# +# Allow NEON instructions (needed for lowlevel_init.S with GNU toolchain) +PLATFORM_RELFLAGS += -mfpu=neon diff --git a/arch/arm/cpu/armv7/zynq/cpu.c b/arch/arm/cpu/armv7/zynq/cpu.c index 816d0c5..914b1fe 100644 --- a/arch/arm/cpu/armv7/zynq/cpu.c +++ b/arch/arm/cpu/armv7/zynq/cpu.c @@ -10,10 +10,6 @@ #include <asm/arch/sys_proto.h> #include <asm/arch/hardware.h> -void lowlevel_init(void) -{ -} - #define ZYNQ_SILICON_VER_MASK 0xF0000000 #define ZYNQ_SILICON_VER_SHIFT 28 diff --git a/arch/arm/cpu/armv7/zynq/ddrc.c b/arch/arm/cpu/armv7/zynq/ddrc.c index d74f8db..5b20acc 100644 --- a/arch/arm/cpu/armv7/zynq/ddrc.c +++ b/arch/arm/cpu/armv7/zynq/ddrc.c @@ -42,6 +42,8 @@ void zynq_ddrc_init(void) */ /* cppcheck-suppress nullPointer */ memset((void *)0, 0, 1 * 1024 * 1024); + + gd->ram_size /= 2; } else { puts("ECC disabled "); } diff --git a/arch/arm/cpu/armv7/zynq/lowlevel_init.S b/arch/arm/cpu/armv7/zynq/lowlevel_init.S new file mode 100644 index 0000000..6d714b7 --- /dev/null +++ b/arch/arm/cpu/armv7/zynq/lowlevel_init.S @@ -0,0 +1,26 @@ +/* + * Copyright (C) 2013 Xilinx, Inc. All rights reserved. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <asm-offsets.h> +#include <config.h> +#include <linux/linkage.h> + +ENTRY(lowlevel_init) + + /* Enable the the VFP */ + mrc p15, 0, r1, c1, c0, 2 + orr r1, r1, #(0x3 << 20) + orr r1, r1, #(0x3 << 20) + mcr p15, 0, r1, c1, c0, 2 + isb + fmrx r1, FPEXC + orr r1,r1, #(1<<30) + fmxr FPEXC, r1 + + /* Move back to caller */ + mov pc, lr + +ENDPROC(lowlevel_init) diff --git a/arch/arm/cpu/armv7/zynq/slcr.c b/arch/arm/cpu/armv7/zynq/slcr.c index 934ccc3..2521589 100644 --- a/arch/arm/cpu/armv7/zynq/slcr.c +++ b/arch/arm/cpu/armv7/zynq/slcr.c @@ -132,7 +132,7 @@ void zynq_slcr_devcfg_disable(void) zynq_slcr_unlock(); /* Disable AXI interface by asserting FPGA resets */ - writel(0xFFFFFFFF, &slcr_base->fpga_rst_ctrl); + writel(0xF, &slcr_base->fpga_rst_ctrl); /* Set Level Shifters DT618760 */ writel(0xA, &slcr_base->lvl_shftr_en); diff --git a/arch/arm/cpu/armv7/zynq/spl.c b/arch/arm/cpu/armv7/zynq/spl.c index 0936bdd..b80c357 100644 --- a/arch/arm/cpu/armv7/zynq/spl.c +++ b/arch/arm/cpu/armv7/zynq/spl.c @@ -43,12 +43,21 @@ u32 spl_boot_device(void) mode = BOOT_DEVICE_SPI; break; #endif + case ZYNQ_BM_NAND: + mode = BOOT_DEVICE_NAND; + break; + case ZYNQ_BM_NOR: + mode = BOOT_DEVICE_NOR; + break; #ifdef CONFIG_SPL_MMC_SUPPORT case ZYNQ_BM_SD: puts("mmc boot\n"); mode = BOOT_DEVICE_MMC1; break; #endif + case ZYNQ_BM_JTAG: + mode = BOOT_DEVICE_RAM; + break; default: puts("Unsupported boot mode selected\n"); hang(); |