From a55b441b2ca578417ab3a7a62129cd801e22abf4 Mon Sep 17 00:00:00 2001 From: Edgar E. Iglesias Date: Mon, 8 Mar 2021 23:46:37 +0100 Subject: hw/arm: versal: Add support for the XRAMs Connect the support for the Versal Accelerator RAMs (XRAMs). Reviewed-by: Luc Michel Acked-by: Alistair Francis Signed-off-by: Edgar E. Iglesias Message-id: 20210308224637.2949533-3-edgar.iglesias@gmail.com Signed-off-by: Peter Maydell --- hw/arm/xlnx-versal.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) (limited to 'hw/arm') diff --git a/hw/arm/xlnx-versal.c b/hw/arm/xlnx-versal.c index 628e77ef66..79609692e4 100644 --- a/hw/arm/xlnx-versal.c +++ b/hw/arm/xlnx-versal.c @@ -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); -- cgit v1.2.3-55-g7522