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https://github.com/brain-hackers/u-boot-brain
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9b9449c3e2
The IMX6 has four different speed grades determined by eFUSE SPEED_GRADING indicated by OCOTP_CFG3[17:16] which is at 0x440 in the Fusemap Description Table. Return this frequency so that it can be used elsewhere. Note that the IMX6SDLRM and the IMX6SXRM do not indicate this in the their Fusemap Description Table however Freescale has confirmed that these eFUSE bits match the description within the IMX6DQRM and that they will be added to the next revision of the respective reference manuals. These have been tested with IMX6 Quad/Solo/Dual-light 800Mhz and 1GHz grades. Signed-off-by: Tim Harvey <tharvey@gateworks.com>
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
/*
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* (C) Copyright 2009
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* Stefano Babic, DENX Software Engineering, sbabic@denx.de.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _SYS_PROTO_H_
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#define _SYS_PROTO_H_
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#include <asm/imx-common/regs-common.h>
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#include "../arch-imx/cpu.h"
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#define soc_rev() (get_cpu_rev() & 0xFF)
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#define is_soc_rev(rev) (soc_rev() - rev)
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u32 get_nr_cpus(void);
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u32 get_cpu_rev(void);
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u32 get_cpu_speed_grade_hz(void);
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/* returns MXC_CPU_ value */
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#define cpu_type(rev) (((rev) >> 12)&0xff)
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/* both macros return/take MXC_CPU_ constants */
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#define get_cpu_type() (cpu_type(get_cpu_rev()))
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#define is_cpu_type(cpu) (get_cpu_type() == cpu)
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const char *get_imx_type(u32 imxtype);
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unsigned imx_ddr_size(void);
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void set_chipselect_size(int const);
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/*
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* Initializes on-chip ethernet controllers.
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* to override, implement board_eth_init()
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*/
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int fecmxc_initialize(bd_t *bis);
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u32 get_ahb_clk(void);
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u32 get_periph_clk(void);
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int mxs_reset_block(struct mxs_register_32 *reg);
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int mxs_wait_mask_set(struct mxs_register_32 *reg,
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uint32_t mask,
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unsigned int timeout);
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int mxs_wait_mask_clr(struct mxs_register_32 *reg,
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uint32_t mask,
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unsigned int timeout);
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#endif
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