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add gap8 board of riscv for xiuos

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This commit is contained in:
Wang_Weigen
2021-08-30 14:05:12 +08:00
parent fde280b6a0
commit 198d61918b
42 changed files with 6303 additions and 1 deletions
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Ubiquitous/XiUOS/board/gapuino/third_party_driver/sys_clock/Kconfig
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Ubiquitous/XiUOS/board/gapuino/third_party_driver/sys_clock/Makefile
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SRC_FILES := gapuino_sysinit.c gap8_fll.c
include $(KERNEL_ROOT)/compiler.mk
Ubiquitous/XiUOS/board/gapuino/third_party_driver/sys_clock/gap8_fll.c
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/****************************************************************************
* arch/risc-v/src/gap8/gap8_fll.c
* GAP8 FLL clock generator
*
* Copyright (C) 2018 Gregory Nutt. All rights reserved.
* Author: hhuysqt <1020988872@qq.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* FC can run up to 250MHz@1.2V, and 150MHz@1.0V. While the default voltage
* of PMU is 1.2V, it's okay to boost up without considering PMU.
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include "gap8_fll.h"
/****************************************************************************
* Pre-Processor Declarations
****************************************************************************/
/* Log2(FLL_REF_CLK=32768) */
#define LOG2_REFCLK 15
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: gap8_setfreq
*
* Description:
* Set frequency up to 250MHz. Input frequency counted by Hz.
*
****************************************************************************/
void gap8_setfreq(uint32_t frequency)
{
uint32_t mult;
uint32_t mult_factor_diff;
/* FreqOut = Fref * mult/2^(div-1)
* With 16-bit mult and 4-bit div
* div = 1
*/
mult = frequency >> LOG2_REFCLK;
/* Gain : 2-1 - 2-10 (0x2-0xB)
* Return to close loop mode and give gain to feedback loop
*/
FLL_CTRL->SOC_CONF2 = FLL_CTRL_CONF2_LOOPGAIN(0x7) |
FLL_CTRL_CONF2_DEASSERT_CYCLES(0x10) |
FLL_CTRL_CONF2_ASSERT_CYCLES(0x10) |
FLL_CTRL_CONF2_LOCK_TOLERANCE(0x100) |
FLL_CTRL_CONF2_CONF_CLK_SEL(0x0) |
FLL_CTRL_CONF2_OPEN_LOOP(0x0) |
FLL_CTRL_CONF2_DITHERING(0x1);
/* Configure mult and div */
FLL_CTRL->SOC_CONF1 = FLL_CTRL_CONF1_MODE(1) |
FLL_CTRL_CONF1_MULTI_FACTOR(mult) |
FLL_CTRL_CONF1_CLK_OUT_DIV(1);
/* Check FLL converge by compare status register with multiply factor */
do
{
mult_factor_diff = (FLL_CTRL->SOC_FLL_STATUS - mult);
}
while (mult_factor_diff > 0x10);
FLL_CTRL->SOC_CONF2 = FLL_CTRL_CONF2_LOOPGAIN(0xb) |
FLL_CTRL_CONF2_DEASSERT_CYCLES(0x10) |
FLL_CTRL_CONF2_ASSERT_CYCLES(0x10) |
FLL_CTRL_CONF2_LOCK_TOLERANCE(0x100) |
FLL_CTRL_CONF2_CONF_CLK_SEL(0x0) |
FLL_CTRL_CONF2_OPEN_LOOP(0x0) |
FLL_CTRL_CONF2_DITHERING(0x1);
}
/****************************************************************************
* Name: gap8_getfreq
*
* Description:
* Get current system clock frequency in Hz.
*
****************************************************************************/
uint32_t gap8_getfreq(void)
{
/* FreqOut = Fref * mult/2^(div-1), where div = 1 */
return FLL_REF_CLK * (FLL_CTRL->SOC_FLL_STATUS & 0xffff);
}
Ubiquitous/XiUOS/board/gapuino/third_party_driver/sys_clock/gapuino_sysinit.c
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/****************************************************************************
* boards/risc-v/gap8/gapuino/src/gapuino_sysinit.c
*
* Copyright (C) 2018 Gregory Nutt. All rights reserved.
* Author: hhuysqt <1020988872@qq.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <stdbool.h>
#include <stdio.h>
#include <errno.h>
#include "gap8.h"
#include "gap8_fll.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Types
****************************************************************************/
/* Used to communicate with plpbridge */
struct _debug_struct
{
/* Used by external debug bridge to get exit status when using the board */
uint32_t exitStatus;
/* Printf */
uint32_t useInternalPrintf;
uint32_t putcharPending;
uint32_t putcharCurrent;
uint8_t putcharBuffer[128];
/* Debug step, used for showing progress to host loader */
uint32_t debugStep;
uint32_t debugStepPending;
/* Requests */
uint32_t firstReq;
uint32_t lastReq;
uint32_t firstBridgeReq;
uint32_t notifReqAddr;
uint32_t notifReqValue;
uint32_t bridgeConnected;
};
/****************************************************************************
* Private Data
****************************************************************************/
/* Place a dummy debug struct */
struct _debug_struct Debug_Struct =
{
.useInternalPrintf = 1,
};
uint32_t g_current_freq = 0;
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: gapuino_sysinit
*
* Description:
* Initialize cache, clock, etc.
*
****************************************************************************/
void gapuino_sysinit(void)
{
SCBC->ICACHE_ENABLE = 0xffffffff;
gap8_setfreq(CONFIG_CORE_CLOCK_FREQ);
/* For debug usage */
g_current_freq = gap8_getfreq();
}