[PULL 26/49] hw/arm/mps2-tz: Make SYSCLK frequency board-specific

[Peter Maydell <peter.maydell@linaro.org>]

The AN524 has a different SYSCLK frequency from the AN505 and AN521;
make the SYSCLK frequency a field in the MPS2TZMachineClass rather
than a compile-time constant so we can support the AN524.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210215115138.20465-2-peter.maydell@linaro.org
---
 hw/arm/mps2-tz.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/hw/arm/mps2-tz.c b/hw/arm/mps2-tz.c
index 90caa914934..82ce6262817 100644
--- a/hw/arm/mps2-tz.c
+++ b/hw/arm/mps2-tz.c
@@ -76,6 +76,7 @@ struct MPS2TZMachineClass {
     MachineClass parent;
     MPS2TZFPGAType fpga_type;
     uint32_t scc_id;
+    uint32_t sysclk_frq; /* Main SYSCLK frequency in Hz */
     const char *armsse_type;
 };
 
@@ -111,8 +112,6 @@ struct MPS2TZMachineState {
 
 OBJECT_DECLARE_TYPE(MPS2TZMachineState, MPS2TZMachineClass, MPS2TZ_MACHINE)
 
-/* Main SYSCLK frequency in Hz */
-#define SYSCLK_FRQ 20000000
 /* Slow 32Khz S32KCLK frequency in Hz */
 #define S32KCLK_FRQ (32 * 1000)
 
@@ -186,6 +185,7 @@ static MemoryRegion *make_unimp_dev(MPS2TZMachineState *mms,
 static MemoryRegion *make_uart(MPS2TZMachineState *mms, void *opaque,
                                const char *name, hwaddr size)
 {
+    MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_GET_CLASS(mms);
     CMSDKAPBUART *uart = opaque;
     int i = uart - &mms->uart[0];
     int rxirqno = i * 2;
@@ -196,7 +196,7 @@ static MemoryRegion *make_uart(MPS2TZMachineState *mms, void *opaque,
 
     object_initialize_child(OBJECT(mms), name, uart, TYPE_CMSDK_APB_UART);
     qdev_prop_set_chr(DEVICE(uart), "chardev", serial_hd(i));
-    qdev_prop_set_uint32(DEVICE(uart), "pclk-frq", SYSCLK_FRQ);
+    qdev_prop_set_uint32(DEVICE(uart), "pclk-frq", mmc->sysclk_frq);
     sysbus_realize(SYS_BUS_DEVICE(uart), &error_fatal);
     s = SYS_BUS_DEVICE(uart);
     sysbus_connect_irq(s, 0, get_sse_irq_in(mms, txirqno));
@@ -403,7 +403,7 @@ static void mps2tz_common_init(MachineState *machine)
 
     /* These clocks don't need migration because they are fixed-frequency */
     mms->sysclk = clock_new(OBJECT(machine), "SYSCLK");
-    clock_set_hz(mms->sysclk, SYSCLK_FRQ);
+    clock_set_hz(mms->sysclk, mmc->sysclk_frq);
     mms->s32kclk = clock_new(OBJECT(machine), "S32KCLK");
     clock_set_hz(mms->s32kclk, S32KCLK_FRQ);
 
@@ -670,6 +670,7 @@ static void mps2tz_an505_class_init(ObjectClass *oc, void *data)
     mmc->fpga_type = FPGA_AN505;
     mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m33");
     mmc->scc_id = 0x41045050;
+    mmc->sysclk_frq = 20 * 1000 * 1000; /* 20MHz */
     mmc->armsse_type = TYPE_IOTKIT;
 }
 
@@ -685,6 +686,7 @@ static void mps2tz_an521_class_init(ObjectClass *oc, void *data)
     mmc->fpga_type = FPGA_AN521;
     mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m33");
     mmc->scc_id = 0x41045210;
+    mmc->sysclk_frq = 20 * 1000 * 1000; /* 20MHz */
     mmc->armsse_type = TYPE_SSE200;
 }
 
-- 
2.20.1