[PATCH] Microchip: add QSPI NOR flash

[Vitaly Wool]

Add QSPI NOR flash definition for Microchip PolarFire SoC.

Signed-off-by: Vitaly Wool <vitaly.w...@konsulko.com>
---
 hw/riscv/microchip_pfsoc.c         | 21 +++++++++++++++++++++
 include/hw/riscv/microchip_pfsoc.h |  3 +++
 2 files changed, 24 insertions(+)

diff --git a/hw/riscv/microchip_pfsoc.c b/hw/riscv/microchip_pfsoc.c
index 4627179cd3..d1f4a1fe6f 100644
--- a/hw/riscv/microchip_pfsoc.c
+++ b/hw/riscv/microchip_pfsoc.c
@@ -90,6 +90,8 @@ static const struct MemmapEntry {
     [MICROCHIP_PFSOC_MMUART2] =         { 0x20102000,     0x1000 },
     [MICROCHIP_PFSOC_MMUART3] =         { 0x20104000,     0x1000 },
     [MICROCHIP_PFSOC_MMUART4] =         { 0x20106000,     0x1000 },
+    [MICROCHIP_PFSOC_SPI0] =            { 0x20108000,     0x1000 },
+    [MICROCHIP_PFSOC_SPI1] =            { 0x20109000,     0x1000 },
     [MICROCHIP_PFSOC_GEM0] =            { 0x20110000,     0x2000 },
     [MICROCHIP_PFSOC_GEM1] =            { 0x20112000,     0x2000 },
     [MICROCHIP_PFSOC_GPIO0] =           { 0x20120000,     0x1000 },
@@ -97,6 +99,7 @@ static const struct MemmapEntry {
     [MICROCHIP_PFSOC_GPIO2] =           { 0x20122000,     0x1000 },
     [MICROCHIP_PFSOC_ENVM_CFG] =        { 0x20200000,     0x1000 },
     [MICROCHIP_PFSOC_ENVM_DATA] =       { 0x20220000,    0x20000 },
+    [MICROCHIP_PFSOC_QSPI_XIP] =        { 0x21000000,  0x1000000 },
     [MICROCHIP_PFSOC_IOSCB_CFG] =       { 0x37080000,     0x1000 },
     [MICROCHIP_PFSOC_DRAM] =            { 0x80000000,        0x0 },
 };
@@ -147,6 +150,7 @@ static void microchip_pfsoc_soc_realize(DeviceState *dev, 
Error **errp)
     MemoryRegion *e51_dtim_mem = g_new(MemoryRegion, 1);
     MemoryRegion *l2lim_mem = g_new(MemoryRegion, 1);
     MemoryRegion *envm_data = g_new(MemoryRegion, 1);
+    MemoryRegion *xip_mem = g_new(MemoryRegion, 1);
     char *plic_hart_config;
     size_t plic_hart_config_len;
     NICInfo *nd;
@@ -302,6 +306,15 @@ static void microchip_pfsoc_soc_realize(DeviceState *dev, 
Error **errp)
         qdev_set_nic_properties(DEVICE(&s->gem1), nd);
     }
 
+    /* SPI */
+    create_unimplemented_device("microchip.pfsoc.spi0",
+        memmap[MICROCHIP_PFSOC_SPI0].base,
+        memmap[MICROCHIP_PFSOC_SPI0].size);
+
+    create_unimplemented_device("microchip.pfsoc.spi1",
+        memmap[MICROCHIP_PFSOC_SPI1].base,
+        memmap[MICROCHIP_PFSOC_SPI1].size);
+
     object_property_set_int(OBJECT(&s->gem0), "revision", GEM_REVISION, errp);
     object_property_set_int(OBJECT(&s->gem0), "phy-addr", 8, errp);
     sysbus_realize(SYS_BUS_DEVICE(&s->gem0), errp);
@@ -337,6 +350,14 @@ static void microchip_pfsoc_soc_realize(DeviceState *dev, 
Error **errp)
                                 memmap[MICROCHIP_PFSOC_ENVM_DATA].base,
                                 envm_data);
 
+    /* QSPI Flash */
+    memory_region_init_rom(xip_mem, OBJECT(dev), "microchip.pfsoc.xip",
+                           memmap[MICROCHIP_PFSOC_QSPI_XIP].size,
+                           &error_fatal);
+    memory_region_add_subregion(system_memory,
+                                memmap[MICROCHIP_PFSOC_QSPI_XIP].base,
+                                xip_mem);
+
     /* IOSCBCFG */
     create_unimplemented_device("microchip.pfsoc.ioscb.cfg",
         memmap[MICROCHIP_PFSOC_IOSCB_CFG].base,
diff --git a/include/hw/riscv/microchip_pfsoc.h 
b/include/hw/riscv/microchip_pfsoc.h
index 8bfc7e1a85..28d6f389ec 100644
--- a/include/hw/riscv/microchip_pfsoc.h
+++ b/include/hw/riscv/microchip_pfsoc.h
@@ -87,6 +87,8 @@ enum {
     MICROCHIP_PFSOC_MMUART2,
     MICROCHIP_PFSOC_MMUART3,
     MICROCHIP_PFSOC_MMUART4,
+    MICROCHIP_PFSOC_SPI0,
+    MICROCHIP_PFSOC_SPI1,
     MICROCHIP_PFSOC_GEM0,
     MICROCHIP_PFSOC_GEM1,
     MICROCHIP_PFSOC_GPIO0,
@@ -94,6 +96,7 @@ enum {
     MICROCHIP_PFSOC_GPIO2,
     MICROCHIP_PFSOC_ENVM_CFG,
     MICROCHIP_PFSOC_ENVM_DATA,
+    MICROCHIP_PFSOC_QSPI_XIP,
     MICROCHIP_PFSOC_IOSCB_CFG,
     MICROCHIP_PFSOC_DRAM,
 };
-- 
2.20.1