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authorBin Meng <bin.meng@windriver.com>2020-10-28 13:30:10 +0800
committerAlistair Francis <alistair.francis@wdc.com>2020-11-03 07:17:23 -0800
commit90742c5496f3bf76203c0759f783444af10fb61a (patch)
treedc8ee2b2723bab642a2b6e333a412ecc58d1950b
parentf03100d718579f022316349687dc9127ff01f0ee (diff)
hw/riscv: microchip_pfsoc: Hook the I2C1 controller
The latest SD card image [1] released by Microchip ships a Linux kernel with built-in PolarFire SoC I2C driver support. The device tree file includes the description for the I2C1 node hence kernel tries to probe the I2C1 device during boot. It is enough to create an unimplemented device for I2C1 to allow the kernel to continue booting to the shell. [1] ftp://ftpsoc.microsemi.com/outgoing/core-image-minimal-dev-icicle-kit-es-sd-20201009141623.rootfs.wic.gz Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 1603863010-15807-11-git-send-email-bmeng.cn@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
-rw-r--r--hw/riscv/microchip_pfsoc.c6
-rw-r--r--include/hw/riscv/microchip_pfsoc.h1
2 files changed, 7 insertions, 0 deletions
diff --git a/hw/riscv/microchip_pfsoc.c b/hw/riscv/microchip_pfsoc.c
index 96cb8b983a..37ac46a1af 100644
--- a/hw/riscv/microchip_pfsoc.c
+++ b/hw/riscv/microchip_pfsoc.c
@@ -113,6 +113,7 @@ static const struct MemmapEntry {
[MICROCHIP_PFSOC_MMUART2] = { 0x20102000, 0x1000 },
[MICROCHIP_PFSOC_MMUART3] = { 0x20104000, 0x1000 },
[MICROCHIP_PFSOC_MMUART4] = { 0x20106000, 0x1000 },
+ [MICROCHIP_PFSOC_I2C1] = { 0x2010b000, 0x1000 },
[MICROCHIP_PFSOC_GEM0] = { 0x20110000, 0x2000 },
[MICROCHIP_PFSOC_GEM1] = { 0x20112000, 0x2000 },
[MICROCHIP_PFSOC_GPIO0] = { 0x20120000, 0x1000 },
@@ -343,6 +344,11 @@ static void microchip_pfsoc_soc_realize(DeviceState *dev, Error **errp)
qdev_get_gpio_in(DEVICE(s->plic), MICROCHIP_PFSOC_MMUART4_IRQ),
serial_hd(4));
+ /* I2C1 */
+ create_unimplemented_device("microchip.pfsoc.i2c1",
+ memmap[MICROCHIP_PFSOC_I2C1].base,
+ memmap[MICROCHIP_PFSOC_I2C1].size);
+
/* GEMs */
nd = &nd_table[0];
diff --git a/include/hw/riscv/microchip_pfsoc.h b/include/hw/riscv/microchip_pfsoc.h
index db77e9c84a..51d44637db 100644
--- a/include/hw/riscv/microchip_pfsoc.h
+++ b/include/hw/riscv/microchip_pfsoc.h
@@ -97,6 +97,7 @@ enum {
MICROCHIP_PFSOC_MMUART2,
MICROCHIP_PFSOC_MMUART3,
MICROCHIP_PFSOC_MMUART4,
+ MICROCHIP_PFSOC_I2C1,
MICROCHIP_PFSOC_GEM0,
MICROCHIP_PFSOC_GEM1,
MICROCHIP_PFSOC_GPIO0,