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hw/arm: versal: Add support for the XRAMs

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Connect the support for the Versal Accelerator RAMs (XRAMs).

Reviewed-by: Luc Michel <luc@lmichel.fr>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20210308224637.2949533-3-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Edgar E. Iglesias 2021-03-08 23:46:37 +01:00 • committed by Peter Maydell
parent 9f61763574
commit a55b441b2c
3 changed files with 50 additions and 0 deletions
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36
hw/arm/xlnx-versal.c
View file

@ -10,6 +10,7 @@
*/
#include "qemu/osdep.h"
#include "qemu/units.h"
#include "qapi/error.h"
#include "qemu/log.h"
#include "qemu/module.h"
@ -278,6 +279,40 @@ static void versal_create_rtc(Versal *s, qemu_irq *pic)
sysbus_connect_irq(sbd, 1, pic[VERSAL_RTC_APB_ERR_IRQ]);
}
static void versal_create_xrams(Versal *s, qemu_irq *pic)
{
int nr_xrams = ARRAY_SIZE(s->lpd.xram.ctrl);
DeviceState *orgate;
int i;
/* XRAM IRQs get ORed into a single line. */
object_initialize_child(OBJECT(s), "xram-irq-orgate",
&s->lpd.xram.irq_orgate, TYPE_OR_IRQ);
orgate = DEVICE(&s->lpd.xram.irq_orgate);
object_property_set_int(OBJECT(orgate),
"num-lines", nr_xrams, &error_fatal);
qdev_realize(orgate, NULL, &error_fatal);
qdev_connect_gpio_out(orgate, 0, pic[VERSAL_XRAM_IRQ_0]);
for (i = 0; i < ARRAY_SIZE(s->lpd.xram.ctrl); i++) {
SysBusDevice *sbd;
MemoryRegion *mr;
object_initialize_child(OBJECT(s), "xram[*]", &s->lpd.xram.ctrl[i],
TYPE_XLNX_XRAM_CTRL);
sbd = SYS_BUS_DEVICE(&s->lpd.xram.ctrl[i]);
sysbus_realize(sbd, &error_fatal);
mr = sysbus_mmio_get_region(sbd, 0);
memory_region_add_subregion(&s->mr_ps,
MM_XRAMC + i * MM_XRAMC_SIZE, mr);
mr = sysbus_mmio_get_region(sbd, 1);
memory_region_add_subregion(&s->mr_ps, MM_XRAM + i * MiB, mr);
sysbus_connect_irq(sbd, 0, qdev_get_gpio_in(orgate, i));
}
}
/* This takes the board allocated linear DDR memory and creates aliases
* for each split DDR range/aperture on the Versal address map.
*/
@ -363,6 +398,7 @@ static void versal_realize(DeviceState *dev, Error **errp)
versal_create_admas(s, pic);
versal_create_sds(s, pic);
versal_create_rtc(s, pic);
versal_create_xrams(s, pic);
versal_map_ddr(s);
versal_unimp(s);