@@ -19,6 +19,7 @@ The ``ppce500`` machine supports the following devices:
* Power-off functionality via one GPIO pin
* 1 Freescale MPC8xxx PCI host controller
* VirtIO devices via PCI bus
+* 1 Freescale Enhanced Secure Digital Host controller (eSDHC)
* 1 Freescale Enhanced Triple Speed Ethernet controller (eTSEC)
Hardware configuration information
@@ -180,3 +181,15 @@ as follows:
-kernel vmlinux \
-drive if=pflash,file=/path/to/rootfs.ext2,format=raw \
-append "rootwait root=/dev/mtdblock0"
+
+Alternatively, the root file system can also reside on an emulated SD card
+whose size must again be a power of two:
+
+.. code-block:: bash
+
+ $ qemu-system-ppc64 -M ppce500 -cpu e500mc -smp 4 -m 2G \
+ -display none -serial stdio \
+ -kernel vmlinux \
+ -device sd-card,drive=mydrive \
+ -drive id=mydrive,if=none,file=/path/to/rootfs.ext2,format=raw \
+ -append "rootwait root=/dev/mmcblk0"
@@ -128,10 +128,12 @@ config E500
select PFLASH_CFI01
select PLATFORM_BUS
select PPCE500_PCI
+ select SDHCI
select SERIAL
select MPC_I2C
select FDT_PPC
select DS1338
+ select UNIMP
config E500PLAT
bool
@@ -48,6 +48,8 @@
#include "hw/net/fsl_etsec/etsec.h"
#include "hw/i2c/i2c.h"
#include "hw/irq.h"
+#include "hw/sd/sdhci.h"
+#include "hw/misc/unimp.h"
#define EPAPR_MAGIC (0x45504150)
#define DTC_LOAD_PAD 0x1800000
@@ -66,11 +68,14 @@
#define MPC8544_SERIAL1_REGS_OFFSET 0x4600ULL
#define MPC8544_PCI_REGS_OFFSET 0x8000ULL
#define MPC8544_PCI_REGS_SIZE 0x1000ULL
+#define MPC85XX_ESDHC_REGS_OFFSET 0x2e000ULL
+#define MPC85XX_ESDHC_REGS_SIZE 0x1000ULL
#define MPC8544_UTIL_OFFSET 0xe0000ULL
#define MPC8XXX_GPIO_OFFSET 0x000FF000ULL
#define MPC8544_I2C_REGS_OFFSET 0x3000ULL
#define MPC8XXX_GPIO_IRQ 47
#define MPC8544_I2C_IRQ 43
+#define MPC85XX_ESDHC_IRQ 72
#define RTC_REGS_OFFSET 0x68
#define PLATFORM_CLK_FREQ_HZ (400 * 1000 * 1000)
@@ -203,6 +208,22 @@ static void dt_i2c_create(void *fdt, const char *soc, const char *mpic,
g_free(i2c);
}
+static void dt_sdhc_create(void *fdt, const char *parent, const char *mpic)
+{
+ hwaddr mmio = MPC85XX_ESDHC_REGS_OFFSET;
+ hwaddr size = MPC85XX_ESDHC_REGS_SIZE;
+ int irq = MPC85XX_ESDHC_IRQ;
+ g_autofree char *name = NULL;
+
+ name = g_strdup_printf("%s/sdhc@%" PRIx64, parent, mmio);
+ qemu_fdt_add_subnode(fdt, name);
+ qemu_fdt_setprop(fdt, name, "sdhci,auto-cmd12", NULL, 0);
+ qemu_fdt_setprop_phandle(fdt, name, "interrupt-parent", mpic);
+ qemu_fdt_setprop_cells(fdt, name, "bus-width", 4);
+ qemu_fdt_setprop_cells(fdt, name, "interrupts", irq, 0x2);
+ qemu_fdt_setprop_cells(fdt, name, "reg", mmio, size);
+ qemu_fdt_setprop_string(fdt, name, "compatible", "fsl,esdhc");
+}
typedef struct PlatformDevtreeData {
void *fdt;
@@ -553,6 +574,10 @@ static int ppce500_load_device_tree(PPCE500MachineState *pms,
dt_rtc_create(fdt, "i2c", "rtc");
+ /* sdhc */
+ if (pmc->has_esdhc) {
+ dt_sdhc_create(fdt, soc, mpic);
+ }
gutil = g_strdup_printf("%s/global-utilities@%llx", soc,
MPC8544_UTIL_OFFSET);
@@ -982,7 +1007,8 @@ void ppce500_init(MachineState *machine)
0, qdev_get_gpio_in(mpicdev, 42), 399193,
serial_hd(1), DEVICE_BIG_ENDIAN);
}
- /* I2C */
+
+ /* I2C */
dev = qdev_new("mpc-i2c");
s = SYS_BUS_DEVICE(dev);
sysbus_realize_and_unref(s, &error_fatal);
@@ -992,6 +1018,26 @@ void ppce500_init(MachineState *machine)
i2c = (I2CBus *)qdev_get_child_bus(dev, "i2c");
i2c_slave_create_simple(i2c, "ds1338", RTC_REGS_OFFSET);
+ /* eSDHC */
+ if (pmc->has_esdhc) {
+ create_unimplemented_device("esdhc",
+ pmc->ccsrbar_base + MPC85XX_ESDHC_REGS_OFFSET,
+ MPC85XX_ESDHC_REGS_SIZE);
+
+ /*
+ * Compatible with:
+ * - SD Host Controller Specification Version 2.0 Part A2
+ * (See MPC8569E Reference Manual)
+ */
+ dev = qdev_new(TYPE_SYSBUS_SDHCI);
+ qdev_prop_set_uint8(dev, "sd-spec-version", 2);
+ qdev_prop_set_uint8(dev, "endianness", DEVICE_BIG_ENDIAN);
+ s = SYS_BUS_DEVICE(dev);
+ sysbus_realize_and_unref(s, &error_fatal);
+ sysbus_connect_irq(s, 0, qdev_get_gpio_in(mpicdev, MPC85XX_ESDHC_IRQ));
+ memory_region_add_subregion(ccsr_addr_space, MPC85XX_ESDHC_REGS_OFFSET,
+ sysbus_mmio_get_region(s, 0));
+ }
/* General Utility device */
dev = qdev_new("mpc8544-guts");
@@ -27,6 +27,7 @@ struct PPCE500MachineClass {
int mpic_version;
bool has_mpc8xxx_gpio;
+ bool has_esdhc;
hwaddr platform_bus_base;
hwaddr platform_bus_size;
int platform_bus_first_irq;
@@ -86,6 +86,7 @@ static void e500plat_machine_class_init(ObjectClass *oc, void *data)
pmc->fixup_devtree = e500plat_fixup_devtree;
pmc->mpic_version = OPENPIC_MODEL_FSL_MPIC_42;
pmc->has_mpc8xxx_gpio = true;
+ pmc->has_esdhc = true;
pmc->platform_bus_base = 0xf00000000ULL;
pmc->platform_bus_size = 128 * MiB;
pmc->platform_bus_first_irq = 5;