hw/arm: xlnx-versal-virt: Add Xilinx eFUSE device
Connect the support for Versal eFUSE one-time field-programmable bit array. The command argument: -drive if=pflash,index=1,... Can be used to optionally connect the bit array to a backend storage, such that field-programmed values in one invocation can be made available to next invocation. The backend storage must be a seekable binary file, and its size must be 3072 bytes or larger. A file with all binary 0's is a 'blank'. Signed-off-by: Tong Ho <tong.ho@xilinx.com> Message-id: 20210917052400.1249094-7-tong.ho@xilinx.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Tong Ho
Peter Maydell
parent
393185bc9d
commit
5f4910ff12
@ -382,6 +382,7 @@ config XLNX_VERSAL
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select XLNX_ZYNQMP
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select OR_IRQ
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select XLNX_BBRAM
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select XLNX_EFUSE_VERSAL
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config NPCM7XX
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bool
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@ -376,6 +376,41 @@ static void fdt_add_bbram_node(VersalVirt *s)
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g_free(name);
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}
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static void fdt_add_efuse_ctrl_node(VersalVirt *s)
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{
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const char compat[] = TYPE_XLNX_VERSAL_EFUSE_CTRL;
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const char interrupt_names[] = "pmc_efuse";
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char *name = g_strdup_printf("/pmc_efuse@%x", MM_PMC_EFUSE_CTRL);
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qemu_fdt_add_subnode(s->fdt, name);
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qemu_fdt_setprop_cells(s->fdt, name, "interrupts",
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GIC_FDT_IRQ_TYPE_SPI, VERSAL_EFUSE_IRQ,
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GIC_FDT_IRQ_FLAGS_LEVEL_HI);
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qemu_fdt_setprop(s->fdt, name, "interrupt-names",
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interrupt_names, sizeof(interrupt_names));
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qemu_fdt_setprop_sized_cells(s->fdt, name, "reg",
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2, MM_PMC_EFUSE_CTRL,
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2, MM_PMC_EFUSE_CTRL_SIZE);
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qemu_fdt_setprop(s->fdt, name, "compatible", compat, sizeof(compat));
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g_free(name);
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}
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static void fdt_add_efuse_cache_node(VersalVirt *s)
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{
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const char compat[] = TYPE_XLNX_VERSAL_EFUSE_CACHE;
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char *name = g_strdup_printf("/xlnx_pmc_efuse_cache@%x",
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MM_PMC_EFUSE_CACHE);
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qemu_fdt_add_subnode(s->fdt, name);
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qemu_fdt_setprop_sized_cells(s->fdt, name, "reg",
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2, MM_PMC_EFUSE_CACHE,
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2, MM_PMC_EFUSE_CACHE_SIZE);
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qemu_fdt_setprop(s->fdt, name, "compatible", compat, sizeof(compat));
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g_free(name);
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}
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static void fdt_nop_memory_nodes(void *fdt, Error **errp)
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{
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Error *err = NULL;
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@ -542,6 +577,18 @@ static void bbram_attach_drive(XlnxBBRam *dev)
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}
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}
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static void efuse_attach_drive(XlnxEFuse *dev)
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{
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DriveInfo *dinfo;
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BlockBackend *blk;
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dinfo = drive_get_by_index(IF_PFLASH, 1);
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blk = dinfo ? blk_by_legacy_dinfo(dinfo) : NULL;
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if (blk) {
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qdev_prop_set_drive(DEVICE(dev), "drive", blk);
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}
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}
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static void sd_plugin_card(SDHCIState *sd, DriveInfo *di)
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{
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BlockBackend *blk = di ? blk_by_legacy_dinfo(di) : NULL;
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@ -603,6 +650,8 @@ static void versal_virt_init(MachineState *machine)
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fdt_add_sd_nodes(s);
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fdt_add_rtc_node(s);
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fdt_add_bbram_node(s);
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fdt_add_efuse_ctrl_node(s);
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fdt_add_efuse_cache_node(s);
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fdt_add_cpu_nodes(s, psci_conduit);
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fdt_add_clk_node(s, "/clk125", 125000000, s->phandle.clk_125Mhz);
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fdt_add_clk_node(s, "/clk25", 25000000, s->phandle.clk_25Mhz);
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@ -615,6 +664,9 @@ static void versal_virt_init(MachineState *machine)
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/* Attach bbram backend, if given */
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bbram_attach_drive(&s->soc.pmc.bbram);
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/* Attach efuse backend, if given */
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efuse_attach_drive(&s->soc.pmc.efuse);
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/* Plugin SD cards. */
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for (i = 0; i < ARRAY_SIZE(s->soc.pmc.iou.sd); i++) {
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sd_plugin_card(&s->soc.pmc.iou.sd[i], drive_get_next(IF_SD));
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@ -331,6 +331,44 @@ static void versal_create_bbram(Versal *s, qemu_irq *pic)
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sysbus_connect_irq(sbd, 0, pic[VERSAL_BBRAM_APB_IRQ_0]);
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}
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static void versal_realize_efuse_part(Versal *s, Object *dev, hwaddr base)
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{
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SysBusDevice *part = SYS_BUS_DEVICE(dev);
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object_property_set_link(OBJECT(part), "efuse",
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OBJECT(&s->pmc.efuse), &error_abort);
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sysbus_realize(part, &error_abort);
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memory_region_add_subregion(&s->mr_ps, base,
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sysbus_mmio_get_region(part, 0));
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}
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static void versal_create_efuse(Versal *s, qemu_irq *pic)
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{
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Object *bits = OBJECT(&s->pmc.efuse);
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Object *ctrl = OBJECT(&s->pmc.efuse_ctrl);
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Object *cache = OBJECT(&s->pmc.efuse_cache);
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object_initialize_child(OBJECT(s), "efuse-ctrl", &s->pmc.efuse_ctrl,
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TYPE_XLNX_VERSAL_EFUSE_CTRL);
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object_initialize_child(OBJECT(s), "efuse-cache", &s->pmc.efuse_cache,
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TYPE_XLNX_VERSAL_EFUSE_CACHE);
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object_initialize_child_with_props(ctrl, "xlnx-efuse@0", bits,
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sizeof(s->pmc.efuse),
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TYPE_XLNX_EFUSE, &error_abort,
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"efuse-nr", "3",
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"efuse-size", "8192",
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NULL);
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qdev_realize(DEVICE(bits), NULL, &error_abort);
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versal_realize_efuse_part(s, ctrl, MM_PMC_EFUSE_CTRL);
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versal_realize_efuse_part(s, cache, MM_PMC_EFUSE_CACHE);
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sysbus_connect_irq(SYS_BUS_DEVICE(ctrl), 0, pic[VERSAL_EFUSE_IRQ]);
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}
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/* This takes the board allocated linear DDR memory and creates aliases
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* for each split DDR range/aperture on the Versal address map.
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*/
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@ -420,6 +458,7 @@ static void versal_realize(DeviceState *dev, Error **errp)
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versal_create_rtc(s, pic);
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versal_create_xrams(s, pic);
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versal_create_bbram(s, pic);
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versal_create_efuse(s, pic);
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versal_map_ddr(s);
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versal_unimp(s);
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@ -25,6 +25,7 @@
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#include "hw/usb/xlnx-usb-subsystem.h"
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#include "hw/misc/xlnx-versal-xramc.h"
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#include "hw/nvram/xlnx-bbram.h"
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#include "hw/nvram/xlnx-versal-efuse.h"
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#define TYPE_XLNX_VERSAL "xlnx-versal"
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OBJECT_DECLARE_SIMPLE_TYPE(Versal, XLNX_VERSAL)
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@ -81,6 +82,9 @@ struct Versal {
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XlnxZynqMPRTC rtc;
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XlnxBBRam bbram;
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XlnxEFuse efuse;
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XlnxVersalEFuseCtrl efuse_ctrl;
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XlnxVersalEFuseCache efuse_cache;
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} pmc;
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struct {
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@ -110,6 +114,7 @@ struct Versal {
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#define VERSAL_BBRAM_APB_IRQ_0 121
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#define VERSAL_RTC_APB_ERR_IRQ 121
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#define VERSAL_SD0_IRQ_0 126
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#define VERSAL_EFUSE_IRQ 139
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#define VERSAL_RTC_ALARM_IRQ 142
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#define VERSAL_RTC_SECONDS_IRQ 143
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@ -177,6 +182,11 @@ struct Versal {
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#define MM_PMC_SD0_SIZE 0x10000
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#define MM_PMC_BBRAM_CTRL 0xf11f0000
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#define MM_PMC_BBRAM_CTRL_SIZE 0x00050
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#define MM_PMC_EFUSE_CTRL 0xf1240000
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#define MM_PMC_EFUSE_CTRL_SIZE 0x00104
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#define MM_PMC_EFUSE_CACHE 0xf1250000
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#define MM_PMC_EFUSE_CACHE_SIZE 0x00C00
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#define MM_PMC_CRP 0xf1260000U
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#define MM_PMC_CRP_SIZE 0x10000
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#define MM_PMC_RTC 0xf12a0000
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