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author | Michal Simek <michal.simek@xilinx.com> | 2015-01-15 09:01:51 (GMT) |
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committer | Michal Simek <michal.simek@xilinx.com> | 2015-03-02 17:41:54 (GMT) |
commit | 84c7204bd18a0051a353c7a6f65a5666e1af9501 (patch) | |
tree | f69f35c2a593be6a696cfbbdd38f537b12f65a9c /arch/arm/cpu/armv8 | |
parent | 1606b34aa50804227806971dbb6b82ea0bf81f55 (diff) | |
download | u-boot-84c7204bd18a0051a353c7a6f65a5666e1af9501.tar.xz |
arm64: Add Xilinx ZynqMP support
Add basic Xilinx ZynqMP arm64 support.
Serial and SD is supported.
It supports emulation platfrom ep108 and QEMU.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'arch/arm/cpu/armv8')
-rw-r--r-- | arch/arm/cpu/armv8/Makefile | 1 | ||||
-rw-r--r-- | arch/arm/cpu/armv8/zynqmp/Makefile | 9 | ||||
-rw-r--r-- | arch/arm/cpu/armv8/zynqmp/clk.c | 49 | ||||
-rw-r--r-- | arch/arm/cpu/armv8/zynqmp/cpu.c | 28 |
4 files changed, 87 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv8/Makefile b/arch/arm/cpu/armv8/Makefile index 0c10223..dee5e25 100644 --- a/arch/arm/cpu/armv8/Makefile +++ b/arch/arm/cpu/armv8/Makefile @@ -16,3 +16,4 @@ obj-y += tlb.o obj-y += transition.o obj-$(CONFIG_FSL_LSCH3) += fsl-lsch3/ +obj-$(CONFIG_TARGET_XILINX_ZYNQMP) += zynqmp/ diff --git a/arch/arm/cpu/armv8/zynqmp/Makefile b/arch/arm/cpu/armv8/zynqmp/Makefile new file mode 100644 index 0000000..a997e04 --- /dev/null +++ b/arch/arm/cpu/armv8/zynqmp/Makefile @@ -0,0 +1,9 @@ +# +# (C) Copyright 2014 - 2015 Xilinx, Inc. +# Michal Simek <michal.simek@xilinx.com> +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y += clk.o +obj-y += cpu.o diff --git a/arch/arm/cpu/armv8/zynqmp/clk.c b/arch/arm/cpu/armv8/zynqmp/clk.c new file mode 100644 index 0000000..0af619d --- /dev/null +++ b/arch/arm/cpu/armv8/zynqmp/clk.c @@ -0,0 +1,49 @@ +/* + * (C) Copyright 2014 - 2015 Xilinx, Inc. + * Michal Simek <michal.simek@xilinx.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/arch/hardware.h> +#include <asm/arch/sys_proto.h> + +DECLARE_GLOBAL_DATA_PTR; + +unsigned long get_uart_clk(int dev_id) +{ + u32 ver = zynqmp_get_silicon_version(); + + switch (ver) { + case ZYNQMP_CSU_VERSION_EP108: + return 25000000; + } + + return 133000000; +} + +#ifdef CONFIG_CLOCKS +/** + * set_cpu_clk_info() - Initialize clock framework + * Always returns zero. + * + * This function is called from common code after relocation and sets up the + * clock framework. The framework must not be used before this function had been + * called. + */ +int set_cpu_clk_info(void) +{ + gd->cpu_clk = get_tbclk(); + + /* Support Veloce to show at least 1MHz via bdi */ + if (gd->cpu_clk > 1000000) + gd->bd->bi_arm_freq = gd->cpu_clk / 1000000; + else + gd->bd->bi_arm_freq = 1; + + gd->bd->bi_dsp_freq = 0; + + return 0; +} +#endif diff --git a/arch/arm/cpu/armv8/zynqmp/cpu.c b/arch/arm/cpu/armv8/zynqmp/cpu.c new file mode 100644 index 0000000..6fae03c --- /dev/null +++ b/arch/arm/cpu/armv8/zynqmp/cpu.c @@ -0,0 +1,28 @@ +/* + * (C) Copyright 2014 - 2015 Xilinx, Inc. + * Michal Simek <michal.simek@xilinx.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/arch/hardware.h> +#include <asm/arch/sys_proto.h> +#include <asm/io.h> + +#define ZYNQ_SILICON_VER_MASK 0xF000 +#define ZYNQ_SILICON_VER_SHIFT 12 + +DECLARE_GLOBAL_DATA_PTR; + +unsigned int zynqmp_get_silicon_version(void) +{ + gd->cpu_clk = get_tbclk(); + + switch (gd->cpu_clk) { + case 50000000: + return ZYNQMP_CSU_VERSION_QEMU; + } + + return ZYNQMP_CSU_VERSION_EP108; +} |