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From: Peter Maydell <peter.maydell@linaro.org>
To: qemu-arm@nongnu.org, qemu-devel@nongnu.org
Subject: [PATCH 06/24] hw/misc/mps2-fpgaio: Support SWITCH register
Date: Fri,  5 Feb 2021 17:00:01 +0000
Message-ID: <20210205170019.25319-7-peter.maydell@linaro.org> (raw)
In-Reply-To: <20210205170019.25319-1-peter.maydell@linaro.org>

MPS3 boards have an extra SWITCH register in the FPGAIO block which
reports the value of some switches.  Implement this, governed by a
property the board code can use to specify whether whether it exists.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 include/hw/misc/mps2-fpgaio.h |  1 +
 hw/misc/mps2-fpgaio.c         | 10 ++++++++++
 2 files changed, 11 insertions(+)

diff --git a/include/hw/misc/mps2-fpgaio.h b/include/hw/misc/mps2-fpgaio.h
index bfe73134e78..83c6e18a4ee 100644
--- a/include/hw/misc/mps2-fpgaio.h
+++ b/include/hw/misc/mps2-fpgaio.h
@@ -38,6 +38,7 @@ struct MPS2FPGAIO {
     MemoryRegion iomem;
     LEDState *led[MPS2FPGAIO_MAX_LEDS];
     uint32_t num_leds;
+    bool have_switches;
 
     uint32_t led0;
     uint32_t prescale;
diff --git a/hw/misc/mps2-fpgaio.c b/hw/misc/mps2-fpgaio.c
index b28a1be22cc..b54657a4f07 100644
--- a/hw/misc/mps2-fpgaio.c
+++ b/hw/misc/mps2-fpgaio.c
@@ -35,6 +35,7 @@ REG32(CLK100HZ, 0x14)
 REG32(COUNTER, 0x18)
 REG32(PRESCALE, 0x1c)
 REG32(PSCNTR, 0x20)
+REG32(SWITCH, 0x28)
 REG32(MISC, 0x4c)
 
 static uint32_t counter_from_tickoff(int64_t now, int64_t tick_offset, int frq)
@@ -156,7 +157,15 @@ static uint64_t mps2_fpgaio_read(void *opaque, hwaddr offset, unsigned size)
         resync_counter(s);
         r = s->pscntr;
         break;
+    case A_SWITCH:
+        if (!s->have_switches) {
+            goto bad_offset;
+        }
+        /* User-togglable board switches. We don't model that, so report 0. */
+        r = 0;
+        break;
     default:
+    bad_offset:
         qemu_log_mask(LOG_GUEST_ERROR,
                       "MPS2 FPGAIO read: bad offset %x\n", (int) offset);
         r = 0;
@@ -318,6 +327,7 @@ static Property mps2_fpgaio_properties[] = {
     DEFINE_PROP_UINT32("prescale-clk", MPS2FPGAIO, prescale_clk, 20000000),
     /* Number of LEDs controlled by LED0 register */
     DEFINE_PROP_UINT32("num-leds", MPS2FPGAIO, num_leds, 2),
+    DEFINE_PROP_BOOL("have-switches", MPS2FPGAIO, have_switches, false),
     DEFINE_PROP_END_OF_LIST(),
 };
 
-- 
2.20.1



  parent reply index

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-05 16:59 [PATCH 00/24] hw/arm: New board model mps3-an524 Peter Maydell
2021-02-05 16:59 ` [PATCH 01/24] hw/arm/mps2-tz: Make SYSCLK frequency board-specific Peter Maydell
2021-02-05 18:13   ` Philippe Mathieu-Daudé
2021-02-05 16:59 ` [PATCH 02/24] hw/misc/mps2-scc: Support configurable number of OSCCLK values Peter Maydell
2021-02-12 18:11   ` Philippe Mathieu-Daudé
2021-02-05 16:59 ` [PATCH 03/24] hw/arm/mps2-tz: Correct the OSCCLK settings for mps2-an505 and mps2-an511 Peter Maydell
2021-02-12 18:12   ` Philippe Mathieu-Daudé
2021-02-05 16:59 ` [PATCH 04/24] hw/arm/mps2-tz: Make the OSCCLK settings be configurable per-board Peter Maydell
2021-02-12 18:12   ` Philippe Mathieu-Daudé
2021-02-05 17:00 ` [PATCH 05/24] hw/misc/mps2-fpgaio: Make number of LEDs configurable by board Peter Maydell
2021-02-12 18:19   ` Philippe Mathieu-Daudé
2021-02-05 17:00 ` Peter Maydell [this message]
2021-02-12 13:45   ` [PATCH 06/24] hw/misc/mps2-fpgaio: Support SWITCH register Peter Maydell
2021-02-12 13:51     ` Philippe Mathieu-Daudé
2021-02-12 14:03       ` Peter Maydell
2021-02-12 18:23   ` Philippe Mathieu-Daudé
2021-02-05 17:00 ` [PATCH 07/24] hw/arm/mps2-tz: Make FPGAIO switch and LED config per-board Peter Maydell
2021-02-12 13:51   ` Peter Maydell
2021-02-12 18:24     ` Philippe Mathieu-Daudé
2021-02-05 17:00 ` [PATCH 08/24] hw/arm/mps2-tz: Condition IRQ splitting on number of CPUs, not board type Peter Maydell
2021-02-12 18:25   ` Philippe Mathieu-Daudé
2021-02-05 17:00 ` [PATCH 09/24] hw/arm/mps2-tz: Make number of IRQs board-specific Peter Maydell
2021-02-12 18:26   ` Philippe Mathieu-Daudé
2021-02-05 17:00 ` [PATCH 10/24] hw/misc/mps2-scc: Implement CFG_REG5 and CFG_REG6 for MPS3 AN524 Peter Maydell
2021-02-05 17:00 ` [PATCH 11/24] hw/arm/mps2-tz: Correct wrong interrupt numbers for DMA and SPI Peter Maydell
2021-02-05 17:00 ` [PATCH 12/24] hw/arm/mps2-tz: Allow PPCPortInfo structures to specify device interrupts Peter Maydell
2021-02-05 17:00 ` [PATCH 13/24] hw/arm/mps2-tz: Move device IRQ info to data structures Peter Maydell
2021-02-05 17:00 ` [PATCH 14/24] hw/arm/mps2-tz: Size the uart-irq-orgate based on the number of UARTs Peter Maydell
2021-02-05 17:00 ` [PATCH 15/24] hw/arm/mps2-tz: Allow boards to have different PPCInfo data Peter Maydell
2021-02-05 17:00 ` [PATCH 16/24] hw/arm/mps2-tz: Make RAM arrangement board-specific Peter Maydell
2021-02-05 17:00 ` [PATCH 17/24] hw/arm/mps2-tz: Set MachineClass default_ram info from RAMInfo data Peter Maydell
2021-02-05 17:00 ` [PATCH 18/24] hw/arm/mps2-tz: Support ROMs as well as RAMs Peter Maydell
2021-02-05 17:00 ` [PATCH 19/24] hw/arm/mps2-tz: Get armv7m_load_kernel() size argument from RAMInfo Peter Maydell
2021-02-12 18:30   ` Philippe Mathieu-Daudé
2021-02-05 17:00 ` [PATCH 20/24] hw/arm/mps2-tz: Add new mps3-an524 board Peter Maydell
2021-02-12 11:19   ` Peter Maydell
2021-02-12 14:51   ` Peter Maydell
2021-02-05 17:00 ` [PATCH 21/24] hw/arm/mps2-tz: Stub out USB controller for mps3-an524 Peter Maydell
2021-02-12 18:34   ` Philippe Mathieu-Daudé
2021-02-05 17:00 ` [PATCH 22/24] hw/arm/mps2-tz: Provide PL031 RTC on mps3-an524 Peter Maydell
2021-02-12 18:35   ` Philippe Mathieu-Daudé
2021-02-05 17:00 ` [PATCH 23/24] docs/system/arm/mps2.rst: Document the new mps3-an524 board Peter Maydell
2021-02-12 18:36   ` Philippe Mathieu-Daudé
2021-02-05 17:00 ` [PATCH 24/24] hw/arm/mps2: Update old infocenter.arm.com URLs Peter Maydell
2021-02-12 18:37   ` Philippe Mathieu-Daudé
2021-02-05 18:05 ` [PATCH 00/24] hw/arm: New board model mps3-an524 Philippe Mathieu-Daudé
2021-02-05 19:20   ` Peter Maydell
2021-02-05 19:31     ` Philippe Mathieu-Daudé
2021-02-05 19:34       ` Peter Maydell
2021-02-12 18:38         ` Philippe Mathieu-Daudé
2021-02-05 18:27 ` no-reply

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