From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42108) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dAeZP-0002UM-Gt for qemu-devel@nongnu.org; Tue, 16 May 2017 11:39:33 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dAeZN-0001WP-MV for qemu-devel@nongnu.org; Tue, 16 May 2017 11:39:31 -0400 From: Subbaraya Sundeep Date: Tue, 16 May 2017 21:08:50 +0530 Message-Id: <1494949133-2202-3-git-send-email-sundeep.lkml@gmail.com> In-Reply-To: <1494949133-2202-1-git-send-email-sundeep.lkml@gmail.com> References: <1494949133-2202-1-git-send-email-sundeep.lkml@gmail.com> Subject: [Qemu-devel] [Qemu devel v5 PATCH 2/5] msf2: Microsemi Smartfusion2 System Register block. List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, qemu-arm@nongnu.org Cc: peter.maydell@linaro.org, crosthwaite.peter@gmail.com, alistair23@gmail.com, f4bug@amsat.org, Subbaraya Sundeep Added Sytem register block of Smartfusion2. This block has PLL registers which are accessed by guest. Signed-off-by: Subbaraya Sundeep --- hw/misc/Makefile.objs | 1 + hw/misc/msf2-sysreg.c | 161 ++++++++++++++++++++++++++++++++++++++++++ include/hw/misc/msf2-sysreg.h | 80 +++++++++++++++++++++ 3 files changed, 242 insertions(+) create mode 100644 hw/misc/msf2-sysreg.c create mode 100644 include/hw/misc/msf2-sysreg.h diff --git a/hw/misc/Makefile.objs b/hw/misc/Makefile.objs index c8b4893..0f52354 100644 --- a/hw/misc/Makefile.objs +++ b/hw/misc/Makefile.objs @@ -56,3 +56,4 @@ obj-$(CONFIG_EDU) += edu.o obj-$(CONFIG_HYPERV_TESTDEV) += hyperv_testdev.o obj-$(CONFIG_AUX) += auxbus.o obj-$(CONFIG_ASPEED_SOC) += aspeed_scu.o aspeed_sdmc.o +obj-$(CONFIG_MSF2) += msf2-sysreg.o diff --git a/hw/misc/msf2-sysreg.c b/hw/misc/msf2-sysreg.c new file mode 100644 index 0000000..8d3118f --- /dev/null +++ b/hw/misc/msf2-sysreg.c @@ -0,0 +1,161 @@ +/* + * System Register block model of Microsemi SmartFusion2. + * + * Copyright (c) 2017 Subbaraya Sundeep + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include "hw/misc/msf2-sysreg.h" + +#ifndef MSF2_SYSREG_ERR_DEBUG +#define MSF2_SYSREG_ERR_DEBUG 0 +#endif + +#define DB_PRINT_L(lvl, fmt, args...) do { \ + if (MSF2_SYSREG_ERR_DEBUG >= lvl) { \ + qemu_log("%s: " fmt, __func__, ## args); \ + } \ +} while (0); + +#define DB_PRINT(fmt, args...) DB_PRINT_L(1, fmt, ## args) + +static void msf2_sysreg_reset(DeviceState *d) +{ + MSF2SysregState *s = MSF2_SYSREG(d); + + DB_PRINT("RESET\n"); + + s->regs[MSSDDR_PLL_STATUS_LOW_CR] = 0x021A2358; + s->regs[MSSDDR_FACC1_CR] = 0x0B800124; + s->regs[MSSDDR_PLL_STATUS] = 0x3; +} + +static uint64_t msf2_sysreg_read(void *opaque, hwaddr offset, + unsigned size) +{ + MSF2SysregState *s = opaque; + offset /= 4; + uint32_t ret = 0; + + if (offset < ARRAY_SIZE(s->regs)) { + ret = s->regs[offset]; + DB_PRINT("addr: 0x%08" HWADDR_PRIx " data: 0x%08" PRIx32 "\n", + offset * 4, ret); + } else { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Bad offset 0x%08" HWADDR_PRIx "\n", __func__, + offset * 4); + } + + return ret; +} + +static void msf2_sysreg_write(void *opaque, hwaddr offset, + uint64_t val, unsigned size) +{ + MSF2SysregState *s = (MSF2SysregState *)opaque; + uint32_t newval = val; + uint32_t oldval; + + offset /= 4; + + DB_PRINT("addr: 0x%08" HWADDR_PRIx " data: 0x%08" PRIx64 "\n", + offset * 4, val); + + switch (offset) { + case MSSDDR_PLL_STATUS: + break; + + case ESRAM_CR: + oldval = s->regs[ESRAM_CR]; + if (oldval ^ newval) { + qemu_log_mask(LOG_GUEST_ERROR, + TYPE_MSF2_SYSREG": eSRAM remapping not supported\n"); + abort(); + } + break; + + case DDR_CR: + oldval = s->regs[DDR_CR]; + if (oldval ^ newval) { + qemu_log_mask(LOG_GUEST_ERROR, + TYPE_MSF2_SYSREG": DDR remapping not supported\n"); + abort(); + } + break; + + case ENVM_REMAP_BASE_CR: + oldval = s->regs[ENVM_REMAP_BASE_CR]; + if (oldval ^ newval) { + qemu_log_mask(LOG_GUEST_ERROR, + TYPE_MSF2_SYSREG": eNVM remapping not supported\n"); + abort(); + } + break; + + default: + if (offset < ARRAY_SIZE(s->regs)) { + s->regs[offset] = val; + } else { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Bad offset 0x%08" HWADDR_PRIx "\n", __func__, + offset * 4); + } + break; + } +} + +static const MemoryRegionOps sysreg_ops = { + .read = msf2_sysreg_read, + .write = msf2_sysreg_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void msf2_sysreg_init(Object *obj) +{ + MSF2SysregState *s = MSF2_SYSREG(obj); + + memory_region_init_io(&s->iomem, obj, &sysreg_ops, s, TYPE_MSF2_SYSREG, + MSF2_SYSREG_MMIO_SIZE); + sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->iomem); +} + +static const VMStateDescription vmstate_msf2_sysreg = { + .name = TYPE_MSF2_SYSREG, + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT32_ARRAY(regs, MSF2SysregState, MSF2_SYSREG_NUM_REGS), + VMSTATE_END_OF_LIST() + } +}; + +static void msf2_sysreg_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->vmsd = &vmstate_msf2_sysreg; + dc->reset = msf2_sysreg_reset; +} + +static const TypeInfo msf2_sysreg_info = { + .name = TYPE_MSF2_SYSREG, + .parent = TYPE_SYS_BUS_DEVICE, + .class_init = msf2_sysreg_class_init, + .instance_size = sizeof(MSF2SysregState), + .instance_init = msf2_sysreg_init, +}; + +static void msf2_sysreg_register_types(void) +{ + type_register_static(&msf2_sysreg_info); +} + +type_init(msf2_sysreg_register_types) diff --git a/include/hw/misc/msf2-sysreg.h b/include/hw/misc/msf2-sysreg.h new file mode 100644 index 0000000..a485ed6 --- /dev/null +++ b/include/hw/misc/msf2-sysreg.h @@ -0,0 +1,80 @@ +/* + * Microsemi SmartFusion2 SYSREG + * + * Copyright (c) 2017 Subbaraya Sundeep + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#ifndef HW_MSF2_SYSREG_H +#define HW_MSF2_SYSREG_H + +#include "qemu/osdep.h" +#include "hw/sysbus.h" +#include "hw/hw.h" +#include "sysemu/sysemu.h" +#include "qemu/log.h" + +enum { + ESRAM_CR = 0x00 / 4, + ESRAM_MAX_LAT, + DDR_CR, + ENVM_CR, + ENVM_REMAP_BASE_CR, + ENVM_REMAP_FAB_CR, + CC_CR, + CC_REGION_CR, + CC_LOCK_BASE_ADDR_CR, + CC_FLUSH_INDX_CR, + DDRB_BUF_TIMER_CR, + DDRB_NB_ADDR_CR, + DDRB_NB_SIZE_CR, + DDRB_CR, + + SOFT_RESET_CR = 0x48 / 4, + M3_CR, + + GPIO_SYSRESET_SEL_CR = 0x58 / 4, + + MDDR_CR = 0x60 / 4, + + MSSDDR_PLL_STATUS_LOW_CR = 0x90 / 4, + MSSDDR_PLL_STATUS_HIGH_CR, + MSSDDR_FACC1_CR, + MSSDDR_FACC2_CR, + + MSSDDR_PLL_STATUS = 0x150 / 4, + +}; + +#define MSF2_SYSREG_MMIO_SIZE 0x300 +#define MSF2_SYSREG_NUM_REGS (MSF2_SYSREG_MMIO_SIZE / 4) + +#define TYPE_MSF2_SYSREG "msf2-sysreg" +#define MSF2_SYSREG(obj) OBJECT_CHECK(MSF2SysregState, (obj), TYPE_MSF2_SYSREG) + +typedef struct MSF2SysregState { + SysBusDevice parent_obj; + + MemoryRegion iomem; + + uint32_t regs[MSF2_SYSREG_NUM_REGS]; +} MSF2SysregState; + +#endif /* HW_MSF2_SYSREG_H */ -- 2.5.0