diff options
| author | qianfan Zhao <qianfanguijin@163.com> | 2023-06-06 10:19:32 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2023-06-06 10:19:32 +0100 |
| commit | 4a52ef61d901290da8ece2bf99546af1389ff7bb (patch) | |
| tree | b91b6735fbd81f84e81503522f8bbde8e852bc78 /hw/arm/allwinner-r40.c | |
| parent | a95454309269d579d936f3c9c736b436910f74f8 (diff) | |
hw/arm/allwinner-r40: add SDRAM controller device
Types of memory that the SDRAM controller supports are DDR2/DDR3
and capacities of up to 2GiB. This commit adds emulation support
of the Allwinner R40 SDRAM controller.
This driver only support 256M, 512M and 1024M memory now.
Signed-off-by: qianfan Zhao <qianfanguijin@163.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/arm/allwinner-r40.c')
| -rw-r--r-- | hw/arm/allwinner-r40.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/hw/arm/allwinner-r40.c b/hw/arm/allwinner-r40.c index 4bc582630c..0e4542d35f 100644 --- a/hw/arm/allwinner-r40.c +++ b/hw/arm/allwinner-r40.c @@ -31,6 +31,7 @@ #include "hw/loader.h" #include "sysemu/sysemu.h" #include "hw/arm/allwinner-r40.h" +#include "hw/misc/allwinner-r40-dramc.h" /* Memory map */ const hwaddr allwinner_r40_memmap[] = { @@ -53,6 +54,9 @@ const hwaddr allwinner_r40_memmap[] = { [AW_R40_DEV_UART6] = 0x01c29800, [AW_R40_DEV_UART7] = 0x01c29c00, [AW_R40_DEV_TWI0] = 0x01c2ac00, + [AW_R40_DEV_DRAMCOM] = 0x01c62000, + [AW_R40_DEV_DRAMCTL] = 0x01c63000, + [AW_R40_DEV_DRAMPHY] = 0x01c65000, [AW_R40_DEV_GIC_DIST] = 0x01c81000, [AW_R40_DEV_GIC_CPU] = 0x01c82000, [AW_R40_DEV_GIC_HYP] = 0x01c84000, @@ -129,8 +133,6 @@ static struct AwR40Unimplemented r40_unimplemented[] = { { "gpu", 0x01c40000, 64 * KiB }, { "gmac", 0x01c50000, 64 * KiB }, { "hstmr", 0x01c60000, 4 * KiB }, - { "dram-com", 0x01c62000, 4 * KiB }, - { "dram-ctl", 0x01c63000, 4 * KiB }, { "tcon-top", 0x01c70000, 4 * KiB }, { "lcd0", 0x01c71000, 4 * KiB }, { "lcd1", 0x01c72000, 4 * KiB }, @@ -273,6 +275,12 @@ static void allwinner_r40_init(Object *obj) } object_initialize_child(obj, "twi0", &s->i2c0, TYPE_AW_I2C_SUN6I); + + object_initialize_child(obj, "dramc", &s->dramc, TYPE_AW_R40_DRAMC); + object_property_add_alias(obj, "ram-addr", OBJECT(&s->dramc), + "ram-addr"); + object_property_add_alias(obj, "ram-size", OBJECT(&s->dramc), + "ram-size"); } static void allwinner_r40_realize(DeviceState *dev, Error **errp) @@ -425,6 +433,15 @@ static void allwinner_r40_realize(DeviceState *dev, Error **errp) sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c0), 0, qdev_get_gpio_in(DEVICE(&s->gic), AW_R40_GIC_SPI_TWI0)); + /* DRAMC */ + sysbus_realize(SYS_BUS_DEVICE(&s->dramc), &error_fatal); + sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 0, + s->memmap[AW_R40_DEV_DRAMCOM]); + sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 1, + s->memmap[AW_R40_DEV_DRAMCTL]); + sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 2, + s->memmap[AW_R40_DEV_DRAMPHY]); + /* Unimplemented devices */ for (i = 0; i < ARRAY_SIZE(r40_unimplemented); i++) { create_unimplemented_device(r40_unimplemented[i].device_name, |