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qemu/hw/arm/xlnx-versal-virt.c
Markus Armbruster c29faeda3f hw/arm/xlnx-versal-virt: Replace drive_get_next() by drive_get() 
drive_get_next() is basically a bad idea.  It returns the "next" block
backend of a certain interface type.  "Next" means bus=0,unit=N, where
subsequent calls count N up from zero, per interface type.

This lets you define unit numbers implicitly by execution order.  If the
order changes, or new calls appear "in the middle", unit numbers change.
ABI break.  Hard to spot in review.

Machine "xlnx-versal-virt" connects backends with drive_get_next() in
a counting loop.  Change it to use drive_get() directly.  This makes
the unit numbers explicit in the code.

Cc: Alistair Francis <alistair@alistair23.me>
Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: qemu-arm@nongnu.org
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20211117163409.3587705-9-armbru@redhat.com>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2021-12-15 08:38:16 +01:00

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/*
* Xilinx Versal Virtual board.
*
* Copyright (c) 2018 Xilinx Inc.
* Written by Edgar E. Iglesias
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 or
* (at your option) any later version.
*/
#include "qemu/osdep.h"
#include "qemu/error-report.h"
#include "qapi/error.h"
#include "sysemu/device_tree.h"
#include "hw/boards.h"
#include "hw/sysbus.h"
#include "hw/arm/sysbus-fdt.h"
#include "hw/arm/fdt.h"
#include "cpu.h"
#include "hw/qdev-properties.h"
#include "hw/arm/xlnx-versal.h"
#include "qom/object.h"
#define TYPE_XLNX_VERSAL_VIRT_MACHINE MACHINE_TYPE_NAME("xlnx-versal-virt")
OBJECT_DECLARE_SIMPLE_TYPE(VersalVirt, XLNX_VERSAL_VIRT_MACHINE)
struct VersalVirt {
MachineState parent_obj;
Versal soc;
void *fdt;
int fdt_size;
struct {
uint32_t gic;
uint32_t ethernet_phy[2];
uint32_t clk_125Mhz;
uint32_t clk_25Mhz;
uint32_t usb;
uint32_t dwc;
} phandle;
struct arm_boot_info binfo;
struct {
bool secure;
} cfg;
};
static void fdt_create(VersalVirt *s)
{
MachineClass *mc = MACHINE_GET_CLASS(s);
int i;
s->fdt = create_device_tree(&s->fdt_size);
if (!s->fdt) {
error_report("create_device_tree() failed");
exit(1);
}
/* Allocate all phandles. */
s->phandle.gic = qemu_fdt_alloc_phandle(s->fdt);
for (i = 0; i < ARRAY_SIZE(s->phandle.ethernet_phy); i++) {
s->phandle.ethernet_phy[i] = qemu_fdt_alloc_phandle(s->fdt);
}
s->phandle.clk_25Mhz = qemu_fdt_alloc_phandle(s->fdt);
s->phandle.clk_125Mhz = qemu_fdt_alloc_phandle(s->fdt);
s->phandle.usb = qemu_fdt_alloc_phandle(s->fdt);
s->phandle.dwc = qemu_fdt_alloc_phandle(s->fdt);
/* Create /chosen node for load_dtb. */
qemu_fdt_add_subnode(s->fdt, "/chosen");
/* Header */
qemu_fdt_setprop_cell(s->fdt, "/", "interrupt-parent", s->phandle.gic);
qemu_fdt_setprop_cell(s->fdt, "/", "#size-cells", 0x2);
qemu_fdt_setprop_cell(s->fdt, "/", "#address-cells", 0x2);
qemu_fdt_setprop_string(s->fdt, "/", "model", mc->desc);
qemu_fdt_setprop_string(s->fdt, "/", "compatible", "xlnx-versal-virt");
}
static void fdt_add_clk_node(VersalVirt *s, const char *name,
unsigned int freq_hz, uint32_t phandle)
{
qemu_fdt_add_subnode(s->fdt, name);
qemu_fdt_setprop_cell(s->fdt, name, "phandle", phandle);
qemu_fdt_setprop_cell(s->fdt, name, "clock-frequency", freq_hz);
qemu_fdt_setprop_cell(s->fdt, name, "#clock-cells", 0x0);
qemu_fdt_setprop_string(s->fdt, name, "compatible", "fixed-clock");
qemu_fdt_setprop(s->fdt, name, "u-boot,dm-pre-reloc", NULL, 0);
}
static void fdt_add_cpu_nodes(VersalVirt *s, uint32_t psci_conduit)
{
int i;
qemu_fdt_add_subnode(s->fdt, "/cpus");
qemu_fdt_setprop_cell(s->fdt, "/cpus", "#size-cells", 0x0);
qemu_fdt_setprop_cell(s->fdt, "/cpus", "#address-cells", 1);
for (i = XLNX_VERSAL_NR_ACPUS - 1; i >= 0; i--) {
char *name = g_strdup_printf("/cpus/cpu@%d", i);
ARMCPU *armcpu = ARM_CPU(qemu_get_cpu(i));
qemu_fdt_add_subnode(s->fdt, name);
qemu_fdt_setprop_cell(s->fdt, name, "reg", armcpu->mp_affinity);
if (psci_conduit != QEMU_PSCI_CONDUIT_DISABLED) {
qemu_fdt_setprop_string(s->fdt, name, "enable-method", "psci");
}
qemu_fdt_setprop_string(s->fdt, name, "device_type", "cpu");
qemu_fdt_setprop_string(s->fdt, name, "compatible",
armcpu->dtb_compatible);
g_free(name);
}
}
static void fdt_add_gic_nodes(VersalVirt *s)
{
char *nodename;
nodename = g_strdup_printf("/gic@%x", MM_GIC_APU_DIST_MAIN);
qemu_fdt_add_subnode(s->fdt, nodename);
qemu_fdt_setprop_cell(s->fdt, nodename, "phandle", s->phandle.gic);
qemu_fdt_setprop_cells(s->fdt, nodename, "interrupts",
GIC_FDT_IRQ_TYPE_PPI, VERSAL_GIC_MAINT_IRQ,
GIC_FDT_IRQ_FLAGS_LEVEL_HI);
qemu_fdt_setprop(s->fdt, nodename, "interrupt-controller", NULL, 0);
qemu_fdt_setprop_sized_cells(s->fdt, nodename, "reg",
2, MM_GIC_APU_DIST_MAIN,
2, MM_GIC_APU_DIST_MAIN_SIZE,
2, MM_GIC_APU_REDIST_0,
2, MM_GIC_APU_REDIST_0_SIZE);
qemu_fdt_setprop_cell(s->fdt, nodename, "#interrupt-cells", 3);
qemu_fdt_setprop_string(s->fdt, nodename, "compatible", "arm,gic-v3");
g_free(nodename);
}
static void fdt_add_timer_nodes(VersalVirt *s)
{
const char compat[] = "arm,armv8-timer";
uint32_t irqflags = GIC_FDT_IRQ_FLAGS_LEVEL_HI;
qemu_fdt_add_subnode(s->fdt, "/timer");
qemu_fdt_setprop_cells(s->fdt, "/timer", "interrupts",
GIC_FDT_IRQ_TYPE_PPI, VERSAL_TIMER_S_EL1_IRQ, irqflags,
GIC_FDT_IRQ_TYPE_PPI, VERSAL_TIMER_NS_EL1_IRQ, irqflags,
GIC_FDT_IRQ_TYPE_PPI, VERSAL_TIMER_VIRT_IRQ, irqflags,
GIC_FDT_IRQ_TYPE_PPI, VERSAL_TIMER_NS_EL2_IRQ, irqflags);
qemu_fdt_setprop(s->fdt, "/timer", "compatible",
compat, sizeof(compat));
}
static void fdt_add_usb_xhci_nodes(VersalVirt *s)
{
const char clocknames[] = "bus_clk\0ref_clk";
const char irq_name[] = "dwc_usb3";
const char compatVersalDWC3[] = "xlnx,versal-dwc3";
const char compatDWC3[] = "snps,dwc3";
char *name = g_strdup_printf("/usb@%" PRIx32, MM_USB2_CTRL_REGS);
qemu_fdt_add_subnode(s->fdt, name);
qemu_fdt_setprop(s->fdt, name, "compatible",
compatVersalDWC3, sizeof(compatVersalDWC3));
qemu_fdt_setprop_sized_cells(s->fdt, name, "reg",
2, MM_USB2_CTRL_REGS,
2, MM_USB2_CTRL_REGS_SIZE);
qemu_fdt_setprop(s->fdt, name, "clock-names",
clocknames, sizeof(clocknames));
qemu_fdt_setprop_cells(s->fdt, name, "clocks",
s->phandle.clk_25Mhz, s->phandle.clk_125Mhz);
qemu_fdt_setprop(s->fdt, name, "ranges", NULL, 0);
qemu_fdt_setprop_cell(s->fdt, name, "#address-cells", 2);
qemu_fdt_setprop_cell(s->fdt, name, "#size-cells", 2);
qemu_fdt_setprop_cell(s->fdt, name, "phandle", s->phandle.usb);
g_free(name);
name = g_strdup_printf("/usb@%" PRIx32 "/dwc3@%" PRIx32,
MM_USB2_CTRL_REGS, MM_USB_0);
qemu_fdt_add_subnode(s->fdt, name);
qemu_fdt_setprop(s->fdt, name, "compatible",
compatDWC3, sizeof(compatDWC3));
qemu_fdt_setprop_sized_cells(s->fdt, name, "reg",
2, MM_USB_0, 2, MM_USB_0_SIZE);
qemu_fdt_setprop(s->fdt, name, "interrupt-names",
irq_name, sizeof(irq_name));
qemu_fdt_setprop_cells(s->fdt, name, "interrupts",
GIC_FDT_IRQ_TYPE_SPI, VERSAL_USB0_IRQ_0,
GIC_FDT_IRQ_FLAGS_LEVEL_HI);
qemu_fdt_setprop_cell(s->fdt, name,
"snps,quirk-frame-length-adjustment", 0x20);
qemu_fdt_setprop_cells(s->fdt, name, "#stream-id-cells", 1);
qemu_fdt_setprop_string(s->fdt, name, "dr_mode", "host");
qemu_fdt_setprop_string(s->fdt, name, "phy-names", "usb3-phy");
qemu_fdt_setprop(s->fdt, name, "snps,dis_u2_susphy_quirk", NULL, 0);
qemu_fdt_setprop(s->fdt, name, "snps,dis_u3_susphy_quirk", NULL, 0);
qemu_fdt_setprop(s->fdt, name, "snps,refclk_fladj", NULL, 0);
qemu_fdt_setprop(s->fdt, name, "snps,mask_phy_reset", NULL, 0);
qemu_fdt_setprop_cell(s->fdt, name, "phandle", s->phandle.dwc);
qemu_fdt_setprop_string(s->fdt, name, "maximum-speed", "high-speed");
g_free(name);
}
static void fdt_add_uart_nodes(VersalVirt *s)
{
uint64_t addrs[] = { MM_UART1, MM_UART0 };
unsigned int irqs[] = { VERSAL_UART1_IRQ_0, VERSAL_UART0_IRQ_0 };
const char compat[] = "arm,pl011\0arm,sbsa-uart";
const char clocknames[] = "uartclk\0apb_pclk";
int i;
for (i = 0; i < ARRAY_SIZE(addrs); i++) {
char *name = g_strdup_printf("/uart@%" PRIx64, addrs[i]);
qemu_fdt_add_subnode(s->fdt, name);
qemu_fdt_setprop_cell(s->fdt, name, "current-speed", 115200);
qemu_fdt_setprop_cells(s->fdt, name, "clocks",
s->phandle.clk_125Mhz, s->phandle.clk_125Mhz);
qemu_fdt_setprop(s->fdt, name, "clock-names",
clocknames, sizeof(clocknames));
qemu_fdt_setprop_cells(s->fdt, name, "interrupts",
GIC_FDT_IRQ_TYPE_SPI, irqs[i],
GIC_FDT_IRQ_FLAGS_LEVEL_HI);
qemu_fdt_setprop_sized_cells(s->fdt, name, "reg",
2, addrs[i], 2, 0x1000);
qemu_fdt_setprop(s->fdt, name, "compatible",
compat, sizeof(compat));
qemu_fdt_setprop(s->fdt, name, "u-boot,dm-pre-reloc", NULL, 0);
if (addrs[i] == MM_UART0) {
/* Select UART0. */
qemu_fdt_setprop_string(s->fdt, "/chosen", "stdout-path", name);
}
g_free(name);
}
}
static void fdt_add_fixed_link_nodes(VersalVirt *s, char *gemname,
uint32_t phandle)
{
char *name = g_strdup_printf("%s/fixed-link", gemname);
qemu_fdt_add_subnode(s->fdt, name);
qemu_fdt_setprop_cell(s->fdt, name, "phandle", phandle);
qemu_fdt_setprop(s->fdt, name, "full-duplex", NULL, 0);
qemu_fdt_setprop_cell(s->fdt, name, "speed", 1000);
g_free(name);
}
static void fdt_add_gem_nodes(VersalVirt *s)
{
uint64_t addrs[] = { MM_GEM1, MM_GEM0 };
unsigned int irqs[] = { VERSAL_GEM1_IRQ_0, VERSAL_GEM0_IRQ_0 };
const char clocknames[] = "pclk\0hclk\0tx_clk\0rx_clk";
const char compat_gem[] = "cdns,zynqmp-gem\0cdns,gem";
int i;
for (i = 0; i < ARRAY_SIZE(addrs); i++) {
char *name = g_strdup_printf("/ethernet@%" PRIx64, addrs[i]);
qemu_fdt_add_subnode(s->fdt, name);
fdt_add_fixed_link_nodes(s, name, s->phandle.ethernet_phy[i]);
qemu_fdt_setprop_string(s->fdt, name, "phy-mode", "rgmii-id");
qemu_fdt_setprop_cell(s->fdt, name, "phy-handle",
s->phandle.ethernet_phy[i]);
qemu_fdt_setprop_cells(s->fdt, name, "clocks",
s->phandle.clk_25Mhz, s->phandle.clk_25Mhz,
s->phandle.clk_125Mhz, s->phandle.clk_125Mhz);
qemu_fdt_setprop(s->fdt, name, "clock-names",
clocknames, sizeof(clocknames));
qemu_fdt_setprop_cells(s->fdt, name, "interrupts",
GIC_FDT_IRQ_TYPE_SPI, irqs[i],
GIC_FDT_IRQ_FLAGS_LEVEL_HI,
GIC_FDT_IRQ_TYPE_SPI, irqs[i],
GIC_FDT_IRQ_FLAGS_LEVEL_HI);
qemu_fdt_setprop_sized_cells(s->fdt, name, "reg",
2, addrs[i], 2, 0x1000);
qemu_fdt_setprop(s->fdt, name, "compatible",
compat_gem, sizeof(compat_gem));
qemu_fdt_setprop_cell(s->fdt, name, "#address-cells", 1);
qemu_fdt_setprop_cell(s->fdt, name, "#size-cells", 0);
g_free(name);
}
}
static void fdt_add_zdma_nodes(VersalVirt *s)
{
const char clocknames[] = "clk_main\0clk_apb";
const char compat[] = "xlnx,zynqmp-dma-1.0";
int i;
for (i = XLNX_VERSAL_NR_ADMAS - 1; i >= 0; i--) {
uint64_t addr = MM_ADMA_CH0 + MM_ADMA_CH0_SIZE * i;
char *name = g_strdup_printf("/dma@%" PRIx64, addr);
qemu_fdt_add_subnode(s->fdt, name);
qemu_fdt_setprop_cell(s->fdt, name, "xlnx,bus-width", 64);
qemu_fdt_setprop_cells(s->fdt, name, "clocks",
s->phandle.clk_25Mhz, s->phandle.clk_25Mhz);
qemu_fdt_setprop(s->fdt, name, "clock-names",
clocknames, sizeof(clocknames));
qemu_fdt_setprop_cells(s->fdt, name, "interrupts",
GIC_FDT_IRQ_TYPE_SPI, VERSAL_ADMA_IRQ_0 + i,
GIC_FDT_IRQ_FLAGS_LEVEL_HI);
qemu_fdt_setprop_sized_cells(s->fdt, name, "reg",
2, addr, 2, 0x1000);
qemu_fdt_setprop(s->fdt, name, "compatible", compat, sizeof(compat));
g_free(name);
}
}
static void fdt_add_sd_nodes(VersalVirt *s)
{
const char clocknames[] = "clk_xin\0clk_ahb";
const char compat[] = "arasan,sdhci-8.9a";
int i;
for (i = ARRAY_SIZE(s->soc.pmc.iou.sd) - 1; i >= 0; i--) {
uint64_t addr = MM_PMC_SD0 + MM_PMC_SD0_SIZE * i;
char *name = g_strdup_printf("/sdhci@%" PRIx64, addr);
qemu_fdt_add_subnode(s->fdt, name);
qemu_fdt_setprop_cells(s->fdt, name, "clocks",
s->phandle.clk_25Mhz, s->phandle.clk_25Mhz);
qemu_fdt_setprop(s->fdt, name, "clock-names",
clocknames, sizeof(clocknames));
qemu_fdt_setprop_cells(s->fdt, name, "interrupts",
GIC_FDT_IRQ_TYPE_SPI, VERSAL_SD0_IRQ_0 + i * 2,
GIC_FDT_IRQ_FLAGS_LEVEL_HI);
qemu_fdt_setprop_sized_cells(s->fdt, name, "reg",
2, addr, 2, MM_PMC_SD0_SIZE);
qemu_fdt_setprop(s->fdt, name, "compatible", compat, sizeof(compat));
g_free(name);
}
}
static void fdt_add_rtc_node(VersalVirt *s)
{
const char compat[] = "xlnx,zynqmp-rtc";
const char interrupt_names[] = "alarm\0sec";
char *name = g_strdup_printf("/rtc@%x", MM_PMC_RTC);
qemu_fdt_add_subnode(s->fdt, name);
qemu_fdt_setprop_cells(s->fdt, name, "interrupts",
GIC_FDT_IRQ_TYPE_SPI, VERSAL_RTC_ALARM_IRQ,
GIC_FDT_IRQ_FLAGS_LEVEL_HI,
GIC_FDT_IRQ_TYPE_SPI, VERSAL_RTC_SECONDS_IRQ,
GIC_FDT_IRQ_FLAGS_LEVEL_HI);
qemu_fdt_setprop(s->fdt, name, "interrupt-names",
interrupt_names, sizeof(interrupt_names));
qemu_fdt_setprop_sized_cells(s->fdt, name, "reg",
2, MM_PMC_RTC, 2, MM_PMC_RTC_SIZE);
qemu_fdt_setprop(s->fdt, name, "compatible", compat, sizeof(compat));
g_free(name);
}
static void fdt_add_bbram_node(VersalVirt *s)
{
const char compat[] = TYPE_XLNX_BBRAM;
const char interrupt_names[] = "bbram-error";
char *name = g_strdup_printf("/bbram@%x", MM_PMC_BBRAM_CTRL);
qemu_fdt_add_subnode(s->fdt, name);
qemu_fdt_setprop_cells(s->fdt, name, "interrupts",
GIC_FDT_IRQ_TYPE_SPI, VERSAL_BBRAM_APB_IRQ_0,
GIC_FDT_IRQ_FLAGS_LEVEL_HI);
qemu_fdt_setprop(s->fdt, name, "interrupt-names",
interrupt_names, sizeof(interrupt_names));
qemu_fdt_setprop_sized_cells(s->fdt, name, "reg",
2, MM_PMC_BBRAM_CTRL,
2, MM_PMC_BBRAM_CTRL_SIZE);
qemu_fdt_setprop(s->fdt, name, "compatible", compat, sizeof(compat));
g_free(name);
}
static void fdt_add_efuse_ctrl_node(VersalVirt *s)
{
const char compat[] = TYPE_XLNX_VERSAL_EFUSE_CTRL;
const char interrupt_names[] = "pmc_efuse";
char *name = g_strdup_printf("/pmc_efuse@%x", MM_PMC_EFUSE_CTRL);
qemu_fdt_add_subnode(s->fdt, name);
qemu_fdt_setprop_cells(s->fdt, name, "interrupts",
GIC_FDT_IRQ_TYPE_SPI, VERSAL_EFUSE_IRQ,
GIC_FDT_IRQ_FLAGS_LEVEL_HI);
qemu_fdt_setprop(s->fdt, name, "interrupt-names",
interrupt_names, sizeof(interrupt_names));
qemu_fdt_setprop_sized_cells(s->fdt, name, "reg",
2, MM_PMC_EFUSE_CTRL,
2, MM_PMC_EFUSE_CTRL_SIZE);
qemu_fdt_setprop(s->fdt, name, "compatible", compat, sizeof(compat));
g_free(name);
}
static void fdt_add_efuse_cache_node(VersalVirt *s)
{
const char compat[] = TYPE_XLNX_VERSAL_EFUSE_CACHE;
char *name = g_strdup_printf("/xlnx_pmc_efuse_cache@%x",
MM_PMC_EFUSE_CACHE);
qemu_fdt_add_subnode(s->fdt, name);
qemu_fdt_setprop_sized_cells(s->fdt, name, "reg",
2, MM_PMC_EFUSE_CACHE,
2, MM_PMC_EFUSE_CACHE_SIZE);
qemu_fdt_setprop(s->fdt, name, "compatible", compat, sizeof(compat));
g_free(name);
}
static void fdt_nop_memory_nodes(void *fdt, Error **errp)
{
Error *err = NULL;
char **node_path;
int n = 0;
node_path = qemu_fdt_node_unit_path(fdt, "memory", &err);
if (err) {
error_propagate(errp, err);
return;
}
while (node_path[n]) {
if (g_str_has_prefix(node_path[n], "/memory")) {
qemu_fdt_nop_node(fdt, node_path[n]);
}
n++;
}
g_strfreev(node_path);
}
static void fdt_add_memory_nodes(VersalVirt *s, void *fdt, uint64_t ram_size)
{
/* Describes the various split DDR access regions. */
static const struct {
uint64_t base;
uint64_t size;
} addr_ranges[] = {
{ MM_TOP_DDR, MM_TOP_DDR_SIZE },
{ MM_TOP_DDR_2, MM_TOP_DDR_2_SIZE },
{ MM_TOP_DDR_3, MM_TOP_DDR_3_SIZE },
{ MM_TOP_DDR_4, MM_TOP_DDR_4_SIZE }
};
uint64_t mem_reg_prop[8] = {0};
uint64_t size = ram_size;
Error *err = NULL;
char *name;
int i;
fdt_nop_memory_nodes(fdt, &err);
if (err) {
error_report_err(err);
return;
}
name = g_strdup_printf("/memory@%x", MM_TOP_DDR);
for (i = 0; i < ARRAY_SIZE(addr_ranges) && size; i++) {
uint64_t mapsize;
mapsize = size < addr_ranges[i].size ? size : addr_ranges[i].size;
mem_reg_prop[i * 2] = addr_ranges[i].base;
mem_reg_prop[i * 2 + 1] = mapsize;
size -= mapsize;
}
qemu_fdt_add_subnode(fdt, name);
qemu_fdt_setprop_string(fdt, name, "device_type", "memory");
switch (i) {
case 1:
qemu_fdt_setprop_sized_cells(fdt, name, "reg",
2, mem_reg_prop[0],
2, mem_reg_prop[1]);
break;
case 2:
qemu_fdt_setprop_sized_cells(fdt, name, "reg",
2, mem_reg_prop[0],
2, mem_reg_prop[1],
2, mem_reg_prop[2],
2, mem_reg_prop[3]);
break;
case 3:
qemu_fdt_setprop_sized_cells(fdt, name, "reg",
2, mem_reg_prop[0],
2, mem_reg_prop[1],
2, mem_reg_prop[2],
2, mem_reg_prop[3],
2, mem_reg_prop[4],
2, mem_reg_prop[5]);
break;
case 4:
qemu_fdt_setprop_sized_cells(fdt, name, "reg",
2, mem_reg_prop[0],
2, mem_reg_prop[1],
2, mem_reg_prop[2],
2, mem_reg_prop[3],
2, mem_reg_prop[4],
2, mem_reg_prop[5],
2, mem_reg_prop[6],
2, mem_reg_prop[7]);
break;
default:
g_assert_not_reached();
}
g_free(name);
}
static void versal_virt_modify_dtb(const struct arm_boot_info *binfo,
void *fdt)
{
VersalVirt *s = container_of(binfo, VersalVirt, binfo);
fdt_add_memory_nodes(s, fdt, binfo->ram_size);
}
static void *versal_virt_get_dtb(const struct arm_boot_info *binfo,
int *fdt_size)
{
const VersalVirt *board = container_of(binfo, VersalVirt, binfo);
*fdt_size = board->fdt_size;
return board->fdt;
}
#define NUM_VIRTIO_TRANSPORT 8
static void create_virtio_regions(VersalVirt *s)
{
int virtio_mmio_size = 0x200;
int i;
for (i = 0; i < NUM_VIRTIO_TRANSPORT; i++) {
char *name = g_strdup_printf("virtio%d", i);
hwaddr base = MM_TOP_RSVD + i * virtio_mmio_size;
int irq = VERSAL_RSVD_IRQ_FIRST + i;
MemoryRegion *mr;
DeviceState *dev;
qemu_irq pic_irq;
pic_irq = qdev_get_gpio_in(DEVICE(&s->soc.fpd.apu.gic), irq);
dev = qdev_new("virtio-mmio");
object_property_add_child(OBJECT(&s->soc), name, OBJECT(dev));
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic_irq);
mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
memory_region_add_subregion(&s->soc.mr_ps, base, mr);
g_free(name);
}
for (i = 0; i < NUM_VIRTIO_TRANSPORT; i++) {
hwaddr base = MM_TOP_RSVD + i * virtio_mmio_size;
int irq = VERSAL_RSVD_IRQ_FIRST + i;
char *name = g_strdup_printf("/virtio_mmio@%" PRIx64, base);
qemu_fdt_add_subnode(s->fdt, name);
qemu_fdt_setprop(s->fdt, name, "dma-coherent", NULL, 0);
qemu_fdt_setprop_cells(s->fdt, name, "interrupts",
GIC_FDT_IRQ_TYPE_SPI, irq,
GIC_FDT_IRQ_FLAGS_EDGE_LO_HI);
qemu_fdt_setprop_sized_cells(s->fdt, name, "reg",
2, base, 2, virtio_mmio_size);
qemu_fdt_setprop_string(s->fdt, name, "compatible", "virtio,mmio");
g_free(name);
}
}
static void bbram_attach_drive(XlnxBBRam *dev)
{
DriveInfo *dinfo;
BlockBackend *blk;
dinfo = drive_get_by_index(IF_PFLASH, 0);
blk = dinfo ? blk_by_legacy_dinfo(dinfo) : NULL;
if (blk) {
qdev_prop_set_drive(DEVICE(dev), "drive", blk);
}
}
static void efuse_attach_drive(XlnxEFuse *dev)
{
DriveInfo *dinfo;
BlockBackend *blk;
dinfo = drive_get_by_index(IF_PFLASH, 1);
blk = dinfo ? blk_by_legacy_dinfo(dinfo) : NULL;
if (blk) {
qdev_prop_set_drive(DEVICE(dev), "drive", blk);
}
}
static void sd_plugin_card(SDHCIState *sd, DriveInfo *di)
{
BlockBackend *blk = di ? blk_by_legacy_dinfo(di) : NULL;
DeviceState *card;
card = qdev_new(TYPE_SD_CARD);
object_property_add_child(OBJECT(sd), "card[*]", OBJECT(card));
qdev_prop_set_drive_err(card, "drive", blk, &error_fatal);
qdev_realize_and_unref(card, qdev_get_child_bus(DEVICE(sd), "sd-bus"),
&error_fatal);
}
static void versal_virt_init(MachineState *machine)
{
VersalVirt *s = XLNX_VERSAL_VIRT_MACHINE(machine);
int psci_conduit = QEMU_PSCI_CONDUIT_DISABLED;
int i;
/*
* If the user provides an Operating System to be loaded, we expect them
* to use the -kernel command line option.
*
* Users can load firmware or boot-loaders with the -device loader options.
*
* When loading an OS, we generate a dtb and let arm_load_kernel() select
* where it gets loaded. This dtb will be passed to the kernel in x0.
*
* If there's no -kernel option, we generate a DTB and place it at 0x1000
* for the bootloaders or firmware to pick up.
*
* If users want to provide their own DTB, they can use the -dtb option.
* These dtb's will have their memory nodes modified to match QEMU's
* selected ram_size option before they get passed to the kernel or fw.
*
* When loading an OS, we turn on QEMU's PSCI implementation with SMC
* as the PSCI conduit. When there's no -kernel, we assume the user
* provides EL3 firmware to handle PSCI.
*/
if (machine->kernel_filename) {
psci_conduit = QEMU_PSCI_CONDUIT_SMC;
}
object_initialize_child(OBJECT(machine), "xlnx-versal", &s->soc,
TYPE_XLNX_VERSAL);
object_property_set_link(OBJECT(&s->soc), "ddr", OBJECT(machine->ram),
&error_abort);
object_property_set_int(OBJECT(&s->soc), "psci-conduit", psci_conduit,
&error_abort);
sysbus_realize(SYS_BUS_DEVICE(&s->soc), &error_fatal);
fdt_create(s);
create_virtio_regions(s);
fdt_add_gem_nodes(s);
fdt_add_uart_nodes(s);
fdt_add_gic_nodes(s);
fdt_add_timer_nodes(s);
fdt_add_zdma_nodes(s);
fdt_add_usb_xhci_nodes(s);
fdt_add_sd_nodes(s);
fdt_add_rtc_node(s);
fdt_add_bbram_node(s);
fdt_add_efuse_ctrl_node(s);
fdt_add_efuse_cache_node(s);
fdt_add_cpu_nodes(s, psci_conduit);
fdt_add_clk_node(s, "/clk125", 125000000, s->phandle.clk_125Mhz);
fdt_add_clk_node(s, "/clk25", 25000000, s->phandle.clk_25Mhz);
/* Make the APU cpu address space visible to virtio and other
* modules unaware of muliple address-spaces. */
memory_region_add_subregion_overlap(get_system_memory(),
0, &s->soc.fpd.apu.mr, 0);
/* Attach bbram backend, if given */
bbram_attach_drive(&s->soc.pmc.bbram);
/* Attach efuse backend, if given */
efuse_attach_drive(&s->soc.pmc.efuse);
/* Plugin SD cards. */
for (i = 0; i < ARRAY_SIZE(s->soc.pmc.iou.sd); i++) {
sd_plugin_card(&s->soc.pmc.iou.sd[i],
drive_get(IF_SD, 0, i));
}
s->binfo.ram_size = machine->ram_size;
s->binfo.loader_start = 0x0;
s->binfo.get_dtb = versal_virt_get_dtb;
s->binfo.modify_dtb = versal_virt_modify_dtb;
if (machine->kernel_filename) {
arm_load_kernel(&s->soc.fpd.apu.cpu[0], machine, &s->binfo);
} else {
AddressSpace *as = arm_boot_address_space(&s->soc.fpd.apu.cpu[0],
&s->binfo);
/* Some boot-loaders (e.g u-boot) don't like blobs at address 0 (NULL).
* Offset things by 4K. */
s->binfo.loader_start = 0x1000;
s->binfo.dtb_limit = 0x1000000;
if (arm_load_dtb(s->binfo.loader_start,
&s->binfo, s->binfo.dtb_limit, as, machine) < 0) {
exit(EXIT_FAILURE);
}
}
}
static void versal_virt_machine_instance_init(Object *obj)
{
}
static void versal_virt_machine_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
mc->desc = "Xilinx Versal Virtual development board";
mc->init = versal_virt_init;
mc->min_cpus = XLNX_VERSAL_NR_ACPUS;
mc->max_cpus = XLNX_VERSAL_NR_ACPUS;
mc->default_cpus = XLNX_VERSAL_NR_ACPUS;
mc->no_cdrom = true;
mc->default_ram_id = "ddr";
}
static const TypeInfo versal_virt_machine_init_typeinfo = {
.name = TYPE_XLNX_VERSAL_VIRT_MACHINE,
.parent = TYPE_MACHINE,
.class_init = versal_virt_machine_class_init,
.instance_init = versal_virt_machine_instance_init,
.instance_size = sizeof(VersalVirt),
};
static void versal_virt_machine_init_register_types(void)
{
type_register_static(&versal_virt_machine_init_typeinfo);
}
type_init(versal_virt_machine_init_register_types)
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