diff mbox series

[v3,14/16] hw/riscv: microchip_pfsoc: Hook GPIO controllers

Message ID 1598924352-89526-15-git-send-email-bmeng.cn@gmail.com
State New
Headers show
Series hw/riscv: Add Microchip PolarFire SoC Icicle Kit board support | expand

Commit Message

Bin Meng Sept. 1, 2020, 1:39 a.m. UTC 
From: Bin Meng <bin.meng@windriver.com>

Microchip PolarFire SoC integrates 3 GPIOs controllers. It seems
enough to create unimplemented devices to cover their register
spaces at this point.

With this commit, QEMU can boot to U-Boot (2nd stage bootloader)
all the way to the Linux shell login prompt, with a modified HSS
(1st stage bootloader).

For detailed instructions on how to create images for the Icicle
Kit board, please check QEMU RISC-V WiKi page at:
https://wiki.qemu.org/Documentation/Platforms/RISCV

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
---

(no changes since v1)

 include/hw/riscv/microchip_pfsoc.h |  3 +++
 hw/riscv/microchip_pfsoc.c         | 14 ++++++++++++++
 2 files changed, 17 insertions(+)

Comments

Philippe Mathieu-Daudé Sept. 1, 2020, 9:47 a.m. UTC | #1 
On 9/1/20 3:39 AM, Bin Meng wrote:
> From: Bin Meng <bin.meng@windriver.com>
> 
> Microchip PolarFire SoC integrates 3 GPIOs controllers. It seems
> enough to create unimplemented devices to cover their register
> spaces at this point.
> 
> With this commit, QEMU can boot to U-Boot (2nd stage bootloader)
> all the way to the Linux shell login prompt, with a modified HSS
> (1st stage bootloader).
> 
> For detailed instructions on how to create images for the Icicle
> Kit board, please check QEMU RISC-V WiKi page at:
> https://wiki.qemu.org/Documentation/Platforms/RISCV
> 
> Signed-off-by: Bin Meng <bin.meng@windriver.com>
> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
> ---
> 
> (no changes since v1)
> 
>  include/hw/riscv/microchip_pfsoc.h |  3 +++
>  hw/riscv/microchip_pfsoc.c         | 14 ++++++++++++++
>  2 files changed, 17 insertions(+)

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
diff mbox series

Patch

diff --git a/include/hw/riscv/microchip_pfsoc.h b/include/hw/riscv/microchip_pfsoc.h
index 6d20853..8bfc7e1 100644
--- a/include/hw/riscv/microchip_pfsoc.h
+++ b/include/hw/riscv/microchip_pfsoc.h
@@ -89,6 +89,9 @@  enum {
     MICROCHIP_PFSOC_MMUART4,
     MICROCHIP_PFSOC_GEM0,
     MICROCHIP_PFSOC_GEM1,
+    MICROCHIP_PFSOC_GPIO0,
+    MICROCHIP_PFSOC_GPIO1,
+    MICROCHIP_PFSOC_GPIO2,
     MICROCHIP_PFSOC_ENVM_CFG,
     MICROCHIP_PFSOC_ENVM_DATA,
     MICROCHIP_PFSOC_IOSCB_CFG,
diff --git a/hw/riscv/microchip_pfsoc.c b/hw/riscv/microchip_pfsoc.c
index 7f25609..11ebdd1 100644
--- a/hw/riscv/microchip_pfsoc.c
+++ b/hw/riscv/microchip_pfsoc.c
@@ -89,6 +89,9 @@  static const struct MemmapEntry {
     [MICROCHIP_PFSOC_MMUART4] =         { 0x20106000,     0x1000 },
     [MICROCHIP_PFSOC_GEM0] =            { 0x20110000,     0x2000 },
     [MICROCHIP_PFSOC_GEM1] =            { 0x20112000,     0x2000 },
+    [MICROCHIP_PFSOC_GPIO0] =           { 0x20120000,     0x1000 },
+    [MICROCHIP_PFSOC_GPIO1] =           { 0x20121000,     0x1000 },
+    [MICROCHIP_PFSOC_GPIO2] =           { 0x20122000,     0x1000 },
     [MICROCHIP_PFSOC_ENVM_CFG] =        { 0x20200000,     0x1000 },
     [MICROCHIP_PFSOC_ENVM_DATA] =       { 0x20220000,    0x20000 },
     [MICROCHIP_PFSOC_IOSCB_CFG] =       { 0x37080000,     0x1000 },
@@ -311,6 +314,17 @@  static void microchip_pfsoc_soc_realize(DeviceState *dev, Error **errp)
     sysbus_connect_irq(SYS_BUS_DEVICE(&s->gem1), 0,
         qdev_get_gpio_in(DEVICE(s->plic), MICROCHIP_PFSOC_GEM1_IRQ));
 
+    /* GPIOs */
+    create_unimplemented_device("microchip.pfsoc.gpio0",
+        memmap[MICROCHIP_PFSOC_GPIO0].base,
+        memmap[MICROCHIP_PFSOC_GPIO0].size);
+    create_unimplemented_device("microchip.pfsoc.gpio1",
+        memmap[MICROCHIP_PFSOC_GPIO1].base,
+        memmap[MICROCHIP_PFSOC_GPIO1].size);
+    create_unimplemented_device("microchip.pfsoc.gpio2",
+        memmap[MICROCHIP_PFSOC_GPIO2].base,
+        memmap[MICROCHIP_PFSOC_GPIO2].size);
+
     /* eNVM */
     memory_region_init_rom(envm_data, OBJECT(dev), "microchip.pfsoc.envm.data",
                            memmap[MICROCHIP_PFSOC_ENVM_DATA].size,