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	 e06054368c
			
		
	
	
		e06054368c
		
	
	
	
	
		
			
			The include/hw/hw.h header only has a prototype for hw_error(), so it does not make sense to include this in files that do not use this function. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210326151848.2217216-1-thuth@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
		
			
				
	
	
		
			242 lines
		
	
	
		
			8.8 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			242 lines
		
	
	
		
			8.8 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * Microchip PolarFire SoC IOSCB module emulation
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|  *
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|  * Copyright (c) 2020 Wind River Systems, Inc.
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|  *
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|  * Author:
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|  *   Bin Meng <bin.meng@windriver.com>
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|  *
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|  * This program is free software; you can redistribute it and/or
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|  * modify it under the terms of the GNU General Public License as
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|  * published by the Free Software Foundation; either version 2 or
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|  * (at your option) version 3 of the License.
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|  *
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|  * This program is distributed in the hope that it will be useful,
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|  * but WITHOUT ANY WARRANTY; without even the implied warranty of
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|  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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|  * GNU General Public License for more details.
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|  *
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|  * You should have received a copy of the GNU General Public License along
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|  * with this program; if not, see <http://www.gnu.org/licenses/>.
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|  */
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| 
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| #include "qemu/osdep.h"
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| #include "qemu/bitops.h"
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| #include "qemu/log.h"
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| #include "qapi/error.h"
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| #include "hw/sysbus.h"
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| #include "hw/misc/mchp_pfsoc_ioscb.h"
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| 
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| /*
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|  * The whole IOSCB module registers map into the system address at 0x3000_0000,
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|  * named as "System Port 0 (AXI-D0)".
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|  */
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| #define IOSCB_WHOLE_REG_SIZE        0x10000000
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| #define IOSCB_SUBMOD_REG_SIZE       0x1000
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| 
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| /*
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|  * There are many sub-modules in the IOSCB module.
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|  * See Microchip PolarFire SoC documentation (Register_Map.zip),
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|  * Register Map/PF_SoC_RegMap_V1_1/MPFS250T/mpfs250t_ioscb_memmap_dri.htm
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|  *
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|  * The following are sub-modules offsets that are of concern.
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|  */
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| #define IOSCB_LANE01_BASE           0x06500000
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| #define IOSCB_LANE23_BASE           0x06510000
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| #define IOSCB_CTRL_BASE             0x07020000
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| #define IOSCB_CFG_BASE              0x07080000
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| #define IOSCB_PLL_MSS_BASE          0x0E001000
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| #define IOSCB_CFM_MSS_BASE          0x0E002000
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| #define IOSCB_PLL_DDR_BASE          0x0E010000
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| #define IOSCB_BC_DDR_BASE           0x0E020000
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| #define IOSCB_IO_CALIB_DDR_BASE     0x0E040000
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| #define IOSCB_PLL_SGMII_BASE        0x0E080000
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| #define IOSCB_DLL_SGMII_BASE        0x0E100000
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| #define IOSCB_CFM_SGMII_BASE        0x0E200000
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| #define IOSCB_BC_SGMII_BASE         0x0E400000
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| #define IOSCB_IO_CALIB_SGMII_BASE   0x0E800000
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| 
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| static uint64_t mchp_pfsoc_dummy_read(void *opaque, hwaddr offset,
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|                                       unsigned size)
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| {
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|     qemu_log_mask(LOG_UNIMP, "%s: unimplemented device read "
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|                   "(size %d, offset 0x%" HWADDR_PRIx ")\n",
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|                   __func__, size, offset);
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| 
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|     return 0;
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| }
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| 
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| static void mchp_pfsoc_dummy_write(void *opaque, hwaddr offset,
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|                                    uint64_t value, unsigned size)
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| {
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|     qemu_log_mask(LOG_UNIMP, "%s: unimplemented device write "
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|                   "(size %d, value 0x%" PRIx64
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|                   ", offset 0x%" HWADDR_PRIx ")\n",
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|                   __func__, size, value, offset);
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| }
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| 
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| static const MemoryRegionOps mchp_pfsoc_dummy_ops = {
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|     .read = mchp_pfsoc_dummy_read,
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|     .write = mchp_pfsoc_dummy_write,
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|     .endianness = DEVICE_LITTLE_ENDIAN,
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| };
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| 
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| /* All PLL modules in IOSCB have the same register layout */
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| 
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| #define PLL_CTRL    0x04
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| 
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| static uint64_t mchp_pfsoc_pll_read(void *opaque, hwaddr offset,
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|                                     unsigned size)
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| {
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|     uint32_t val = 0;
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| 
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|     switch (offset) {
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|     case PLL_CTRL:
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|         /* PLL is locked */
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|         val = BIT(25);
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|         break;
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|     default:
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|         qemu_log_mask(LOG_UNIMP, "%s: unimplemented device read "
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|                       "(size %d, offset 0x%" HWADDR_PRIx ")\n",
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|                       __func__, size, offset);
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|         break;
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|     }
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| 
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|     return val;
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| }
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| 
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| static const MemoryRegionOps mchp_pfsoc_pll_ops = {
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|     .read = mchp_pfsoc_pll_read,
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|     .write = mchp_pfsoc_dummy_write,
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|     .endianness = DEVICE_LITTLE_ENDIAN,
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| };
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| 
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| /* IO_CALIB_DDR submodule */
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| 
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| #define IO_CALIB_DDR_IOC_REG1   0x08
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| 
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| static uint64_t mchp_pfsoc_io_calib_ddr_read(void *opaque, hwaddr offset,
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|                                              unsigned size)
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| {
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|     uint32_t val = 0;
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| 
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|     switch (offset) {
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|     case IO_CALIB_DDR_IOC_REG1:
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|         /* calibration completed */
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|         val = BIT(2);
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|         break;
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|     default:
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|         qemu_log_mask(LOG_UNIMP, "%s: unimplemented device read "
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|                       "(size %d, offset 0x%" HWADDR_PRIx ")\n",
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|                       __func__, size, offset);
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|         break;
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|     }
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| 
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|     return val;
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| }
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| 
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| static const MemoryRegionOps mchp_pfsoc_io_calib_ddr_ops = {
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|     .read = mchp_pfsoc_io_calib_ddr_read,
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|     .write = mchp_pfsoc_dummy_write,
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|     .endianness = DEVICE_LITTLE_ENDIAN,
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| };
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| 
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| static void mchp_pfsoc_ioscb_realize(DeviceState *dev, Error **errp)
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| {
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|     MchpPfSoCIoscbState *s = MCHP_PFSOC_IOSCB(dev);
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|     SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
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| 
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|     memory_region_init(&s->container, OBJECT(s),
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|                        "mchp.pfsoc.ioscb", IOSCB_WHOLE_REG_SIZE);
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|     sysbus_init_mmio(sbd, &s->container);
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| 
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|     /* add subregions for all sub-modules in IOSCB */
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| 
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|     memory_region_init_io(&s->lane01, OBJECT(s), &mchp_pfsoc_dummy_ops, s,
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|                           "mchp.pfsoc.ioscb.lane01", IOSCB_SUBMOD_REG_SIZE);
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|     memory_region_add_subregion(&s->container, IOSCB_LANE01_BASE, &s->lane01);
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| 
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|     memory_region_init_io(&s->lane23, OBJECT(s), &mchp_pfsoc_dummy_ops, s,
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|                           "mchp.pfsoc.ioscb.lane23", IOSCB_SUBMOD_REG_SIZE);
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|     memory_region_add_subregion(&s->container, IOSCB_LANE23_BASE, &s->lane23);
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| 
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|     memory_region_init_io(&s->ctrl, OBJECT(s), &mchp_pfsoc_dummy_ops, s,
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|                           "mchp.pfsoc.ioscb.ctrl", IOSCB_SUBMOD_REG_SIZE);
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|     memory_region_add_subregion(&s->container, IOSCB_CTRL_BASE, &s->ctrl);
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| 
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|     memory_region_init_io(&s->cfg, OBJECT(s), &mchp_pfsoc_dummy_ops, s,
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|                           "mchp.pfsoc.ioscb.cfg", IOSCB_SUBMOD_REG_SIZE);
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|     memory_region_add_subregion(&s->container, IOSCB_CFG_BASE, &s->cfg);
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| 
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|     memory_region_init_io(&s->pll_mss, OBJECT(s), &mchp_pfsoc_pll_ops, s,
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|                           "mchp.pfsoc.ioscb.pll_mss", IOSCB_SUBMOD_REG_SIZE);
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|     memory_region_add_subregion(&s->container, IOSCB_PLL_MSS_BASE, &s->pll_mss);
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| 
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|     memory_region_init_io(&s->cfm_mss, OBJECT(s), &mchp_pfsoc_dummy_ops, s,
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|                           "mchp.pfsoc.ioscb.cfm_mss", IOSCB_SUBMOD_REG_SIZE);
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|     memory_region_add_subregion(&s->container, IOSCB_CFM_MSS_BASE, &s->cfm_mss);
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| 
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|     memory_region_init_io(&s->pll_ddr, OBJECT(s), &mchp_pfsoc_pll_ops, s,
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|                           "mchp.pfsoc.ioscb.pll_ddr", IOSCB_SUBMOD_REG_SIZE);
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|     memory_region_add_subregion(&s->container, IOSCB_PLL_DDR_BASE, &s->pll_ddr);
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| 
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|     memory_region_init_io(&s->bc_ddr, OBJECT(s), &mchp_pfsoc_dummy_ops, s,
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|                           "mchp.pfsoc.ioscb.bc_ddr", IOSCB_SUBMOD_REG_SIZE);
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|     memory_region_add_subregion(&s->container, IOSCB_BC_DDR_BASE, &s->bc_ddr);
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| 
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|     memory_region_init_io(&s->io_calib_ddr, OBJECT(s),
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|                           &mchp_pfsoc_io_calib_ddr_ops, s,
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|                           "mchp.pfsoc.ioscb.io_calib_ddr",
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|                           IOSCB_SUBMOD_REG_SIZE);
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|     memory_region_add_subregion(&s->container, IOSCB_IO_CALIB_DDR_BASE,
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|                                 &s->io_calib_ddr);
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| 
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|     memory_region_init_io(&s->pll_sgmii, OBJECT(s), &mchp_pfsoc_pll_ops, s,
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|                           "mchp.pfsoc.ioscb.pll_sgmii", IOSCB_SUBMOD_REG_SIZE);
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|     memory_region_add_subregion(&s->container, IOSCB_PLL_SGMII_BASE,
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|                                 &s->pll_sgmii);
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| 
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|     memory_region_init_io(&s->dll_sgmii, OBJECT(s), &mchp_pfsoc_dummy_ops, s,
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|                           "mchp.pfsoc.ioscb.dll_sgmii", IOSCB_SUBMOD_REG_SIZE);
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|     memory_region_add_subregion(&s->container, IOSCB_DLL_SGMII_BASE,
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|                                 &s->dll_sgmii);
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| 
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|     memory_region_init_io(&s->cfm_sgmii, OBJECT(s), &mchp_pfsoc_dummy_ops, s,
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|                           "mchp.pfsoc.ioscb.cfm_sgmii", IOSCB_SUBMOD_REG_SIZE);
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|     memory_region_add_subregion(&s->container, IOSCB_CFM_SGMII_BASE,
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|                                 &s->cfm_sgmii);
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| 
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|     memory_region_init_io(&s->bc_sgmii, OBJECT(s), &mchp_pfsoc_dummy_ops, s,
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|                           "mchp.pfsoc.ioscb.bc_sgmii", IOSCB_SUBMOD_REG_SIZE);
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|     memory_region_add_subregion(&s->container, IOSCB_BC_SGMII_BASE,
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|                                 &s->bc_sgmii);
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| 
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|     memory_region_init_io(&s->io_calib_sgmii, OBJECT(s), &mchp_pfsoc_dummy_ops,
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|                           s, "mchp.pfsoc.ioscb.io_calib_sgmii",
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|                           IOSCB_SUBMOD_REG_SIZE);
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|     memory_region_add_subregion(&s->container, IOSCB_IO_CALIB_SGMII_BASE,
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|                                 &s->io_calib_sgmii);
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| }
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| 
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| static void mchp_pfsoc_ioscb_class_init(ObjectClass *klass, void *data)
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| {
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|     DeviceClass *dc = DEVICE_CLASS(klass);
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| 
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|     dc->desc = "Microchip PolarFire SoC IOSCB modules";
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|     dc->realize = mchp_pfsoc_ioscb_realize;
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| }
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| 
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| static const TypeInfo mchp_pfsoc_ioscb_info = {
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|     .name          = TYPE_MCHP_PFSOC_IOSCB,
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|     .parent        = TYPE_SYS_BUS_DEVICE,
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|     .instance_size = sizeof(MchpPfSoCIoscbState),
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|     .class_init    = mchp_pfsoc_ioscb_class_init,
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| };
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| 
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| static void mchp_pfsoc_ioscb_register_types(void)
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| {
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|     type_register_static(&mchp_pfsoc_ioscb_info);
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| }
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| 
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| type_init(mchp_pfsoc_ioscb_register_types)
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