Hello Jamin,
On 2/5/24 10:14, Jamin Lin wrote:
According to the design of ASPEED SOCS, the uart controller
is 1 base for ast10x0, ast2600, ast2500 and ast2400.
However, the uart controller is 0 base for ast2700.
To support uart controller both 0 and 1 base,
adds uasrt_bases parameter in AspeedSoCClass
and set the default uart controller 1 base
for ast10x0, astt2600, ast2500 and ast2400.
The board definition can set 'amc->uart_default' to choose a different
default serial port for the console, or use the "bmc-console" machine
option . Isn't it enough ? May be I am misunderstanding the need.
To clarify,
ASPEED_DEV_UART1 is in the first serial port on the boards.
I think we chose to start the indexing at 1 because the Aspeed QEMU
modeling began first with the UART model (console) and for simplicity,
we copied the definitions of the device tree from Linux :
serial0 = &uart1;
serial1 = &uart2;
serial2 = &uart3;
serial3 = &uart4;
serial4 = &uart5;
serial5 = &vuart;
We replicated this indexing starting at 1 to nearly all device models :
ASPEED_DEV_UART1 - 13
ASPEED_DEV_SPI1 -2
ASPEED_DEV_EHCI1 -2
ASPEED_DEV_TIMER1 - 8
ASPEED_DEV_ETH1 -4
ASPEED_DEV_MII1 - 4
ASPEED_DEV_JTAG0 - 1 <--- !!
ASPEED_DEV_FSI1 - 2
I don't know what would be ASPEED_DEV_UART0 in this context.
May be you could send a simplified AST2700 SoC model with definitions
of a minimum address space and IRQ space ?
Or you could change the indexing to start at 0 if you prefer. Just be
careful with the aspeed_set/get_bmc_console routines it you choose to.
Thanks,
C.
From datasheet description
ast2700:
Base Address of UART0 = 0x14c33000
ast1030:
Base Address of UART1 = 0x7e783000
ast2600:
Base Address of UART1 = 0x1E78 3000
ast2500:
Base Address of UART1 = 0x1E78 3000
Signed-off-by: Troy Lee <troy_...@aspeedtech.com>
Signed-off-by: Jamin Lin <jamin_...@aspeedtech.com>
---
hw/arm/aspeed.c | 8 +++++---
hw/arm/aspeed_ast10x0.c | 1 +
hw/arm/aspeed_ast2400.c | 2 ++
hw/arm/aspeed_ast2600.c | 1 +
hw/arm/aspeed_soc_common.c | 4 ++--
include/hw/arm/aspeed_soc.h | 1 +
6 files changed, 12 insertions(+), 5 deletions(-)
diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c
index 09b1e823ba..218b81298e 100644
--- a/hw/arm/aspeed.c
+++ b/hw/arm/aspeed.c
@@ -342,7 +342,7 @@ static void connect_serial_hds_to_uarts(AspeedMachineState
*bmc)
int uart_chosen = bmc->uart_chosen ? bmc->uart_chosen : amc->uart_default;
aspeed_soc_uart_set_chr(s, uart_chosen, serial_hd(0));
- for (int i = 1, uart = ASPEED_DEV_UART1; i < sc->uarts_num; i++, uart++) {
+ for (int i = 1, uart = sc->uarts_base; i < sc->uarts_num; i++, uart++) {
if (uart == uart_chosen) {
continue;
}
@@ -1092,9 +1092,11 @@ static char *aspeed_get_bmc_console(Object *obj, Error
**errp)
{
AspeedMachineState *bmc = ASPEED_MACHINE(obj);
AspeedMachineClass *amc = ASPEED_MACHINE_GET_CLASS(bmc);
+ AspeedSoCClass *sc = ASPEED_SOC_CLASS(obj);
+
int uart_chosen = bmc->uart_chosen ? bmc->uart_chosen : amc->uart_default;
- return g_strdup_printf("uart%d", uart_chosen - ASPEED_DEV_UART1 + 1);
+ return g_strdup_printf("uart%d", uart_chosen - sc->uarts_base + 1);
}
static void aspeed_set_bmc_console(Object *obj, const char *value, Error **errp)
@@ -1114,7 +1116,7 @@ static void aspeed_set_bmc_console(Object *obj, const
char *value, Error **errp)
error_setg(errp, "\"uart\" should be in range [1 - %d]",
sc->uarts_num);
return;
}
- bmc->uart_chosen = ASPEED_DEV_UART1 + val - 1;
+ bmc->uart_chosen = sc->uarts_base + val - 1;
}
static void aspeed_machine_class_props_init(ObjectClass *oc)
diff --git a/hw/arm/aspeed_ast10x0.c b/hw/arm/aspeed_ast10x0.c
index c3b5116a6a..2634e0f654 100644
--- a/hw/arm/aspeed_ast10x0.c
+++ b/hw/arm/aspeed_ast10x0.c
@@ -436,6 +436,7 @@ static void aspeed_soc_ast1030_class_init(ObjectClass
*klass, void *data)
sc->wdts_num = 4;
sc->macs_num = 1;
sc->uarts_num = 13;
+ sc->uarts_base = ASPEED_DEV_UART1;
sc->irqmap = aspeed_soc_ast1030_irqmap;
sc->memmap = aspeed_soc_ast1030_memmap;
sc->num_cpus = 1;
diff --git a/hw/arm/aspeed_ast2400.c b/hw/arm/aspeed_ast2400.c
index 8829561bb6..95da85fee0 100644
--- a/hw/arm/aspeed_ast2400.c
+++ b/hw/arm/aspeed_ast2400.c
@@ -523,6 +523,7 @@ static void aspeed_soc_ast2400_class_init(ObjectClass *oc,
void *data)
sc->wdts_num = 2;
sc->macs_num = 2;
sc->uarts_num = 5;
+ sc->uarts_base = ASPEED_DEV_UART1;
sc->irqmap = aspeed_soc_ast2400_irqmap;
sc->memmap = aspeed_soc_ast2400_memmap;
sc->num_cpus = 1;
@@ -551,6 +552,7 @@ static void aspeed_soc_ast2500_class_init(ObjectClass *oc,
void *data)
sc->wdts_num = 3;
sc->macs_num = 2;
sc->uarts_num = 5;
+ sc->uarts_base = ASPEED_DEV_UART1;
sc->irqmap = aspeed_soc_ast2500_irqmap;
sc->memmap = aspeed_soc_ast2500_memmap;
sc->num_cpus = 1;
diff --git a/hw/arm/aspeed_ast2600.c b/hw/arm/aspeed_ast2600.c
index 4ee32ea99d..f74561ecdc 100644
--- a/hw/arm/aspeed_ast2600.c
+++ b/hw/arm/aspeed_ast2600.c
@@ -666,6 +666,7 @@ static void aspeed_soc_ast2600_class_init(ObjectClass *oc,
void *data)
sc->wdts_num = 4;
sc->macs_num = 4;
sc->uarts_num = 13;
+ sc->uarts_base = ASPEED_DEV_UART1;
sc->irqmap = aspeed_soc_ast2600_irqmap;
sc->memmap = aspeed_soc_ast2600_memmap;
sc->num_cpus = 2;
diff --git a/hw/arm/aspeed_soc_common.c b/hw/arm/aspeed_soc_common.c
index 123a0c432c..3963436c3a 100644
--- a/hw/arm/aspeed_soc_common.c
+++ b/hw/arm/aspeed_soc_common.c
@@ -36,7 +36,7 @@ bool aspeed_soc_uart_realize(AspeedSoCState *s, Error **errp)
AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
SerialMM *smm;
- for (int i = 0, uart = ASPEED_DEV_UART1; i < sc->uarts_num; i++, uart++) {
+ for (int i = 0, uart = sc->uarts_base; i < sc->uarts_num; i++, uart++) {
smm = &s->uart[i];
/* Chardev property is set by the machine. */
@@ -58,7 +58,7 @@ bool aspeed_soc_uart_realize(AspeedSoCState *s, Error **errp)
void aspeed_soc_uart_set_chr(AspeedSoCState *s, int dev, Chardev *chr)
{
AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
- int i = dev - ASPEED_DEV_UART1;
+ int i = dev - sc->uarts_base;
g_assert(0 <= i && i < ARRAY_SIZE(s->uart) && i < sc->uarts_num);
qdev_prop_set_chr(DEVICE(&s->uart[i]), "chardev", chr);
diff --git a/include/hw/arm/aspeed_soc.h b/include/hw/arm/aspeed_soc.h
index 9d0af84a8c..ce2bb51682 100644
--- a/include/hw/arm/aspeed_soc.h
+++ b/include/hw/arm/aspeed_soc.h
@@ -140,6 +140,7 @@ struct AspeedSoCClass {
int wdts_num;
int macs_num;
int uarts_num;
+ int uarts_base;
const int *irqmap;
const hwaddr *memmap;
uint32_t num_cpus;