diff options
Diffstat (limited to 'hw/ppc/e500.c')
| -rw-r--r-- | hw/ppc/e500.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c index 7553f674c9..beb2efd694 100644 --- a/hw/ppc/e500.c +++ b/hw/ppc/e500.c @@ -42,6 +42,7 @@ #include "qemu/error-report.h" #include "hw/platform-bus.h" #include "hw/net/fsl_etsec/etsec.h" +#include "hw/i2c/i2c.h" #define EPAPR_MAGIC (0x45504150) #define BINARY_DEVICE_TREE_FILE "mpc8544ds.dtb" @@ -63,7 +64,10 @@ #define MPC8544_PCI_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 RTC_REGS_OFFSET 0x68 struct boot_info { @@ -161,6 +165,39 @@ static void create_dt_mpc8xxx_gpio(void *fdt, const char *soc, const char *mpic) g_free(poweroff); } +static void dt_rtc_create(void *fdt, const char *i2c, const char *alias) +{ + int offset = RTC_REGS_OFFSET; + + gchar *rtc = g_strdup_printf("%s/rtc@%"PRIx32, i2c, offset); + qemu_fdt_add_subnode(fdt, rtc); + qemu_fdt_setprop_string(fdt, rtc, "compatible", "pericom,pt7c4338"); + qemu_fdt_setprop_cells(fdt, rtc, "reg", offset); + qemu_fdt_setprop_string(fdt, "/aliases", alias, rtc); + + g_free(rtc); +} + +static void dt_i2c_create(void *fdt, const char *soc, const char *mpic, + const char *alias) +{ + hwaddr mmio0 = MPC8544_I2C_REGS_OFFSET; + int irq0 = MPC8544_I2C_IRQ; + + gchar *i2c = g_strdup_printf("%s/i2c@%"PRIx64, soc, mmio0); + qemu_fdt_add_subnode(fdt, i2c); + qemu_fdt_setprop_string(fdt, i2c, "device_type", "i2c"); + qemu_fdt_setprop_string(fdt, i2c, "compatible", "fsl-i2c"); + qemu_fdt_setprop_cells(fdt, i2c, "reg", mmio0, 0x14); + qemu_fdt_setprop_cells(fdt, i2c, "cell-index", 0); + qemu_fdt_setprop_cells(fdt, i2c, "interrupts", irq0, 0x2); + qemu_fdt_setprop_phandle(fdt, i2c, "interrupt-parent", mpic); + qemu_fdt_setprop_string(fdt, "/aliases", alias, i2c); + + g_free(i2c); +} + + typedef struct PlatformDevtreeData { void *fdt; const char *mpic; @@ -464,6 +501,12 @@ static int ppce500_load_device_tree(PPCE500MachineState *pms, soc, mpic, "serial0", 0, true); } + /* i2c */ + dt_i2c_create(fdt, soc, mpic, "i2c"); + + dt_rtc_create(fdt, "i2c", "rtc"); + + gutil = g_strdup_printf("%s/global-utilities@%llx", soc, MPC8544_UTIL_OFFSET); qemu_fdt_add_subnode(fdt, gutil); @@ -812,6 +855,7 @@ void ppce500_init(MachineState *machine) MemoryRegion *ccsr_addr_space; SysBusDevice *s; PPCE500CCSRState *ccsr; + I2CBus *i2c; irqs = g_new0(IrqLines, smp_cpus); for (i = 0; i < smp_cpus; i++) { @@ -887,6 +931,16 @@ void ppce500_init(MachineState *machine) 0, qdev_get_gpio_in(mpicdev, 42), 399193, serial_hd(1), DEVICE_BIG_ENDIAN); } + /* I2C */ + dev = qdev_create(NULL, "mpc-i2c"); + s = SYS_BUS_DEVICE(dev); + qdev_init_nofail(dev); + sysbus_connect_irq(s, 0, qdev_get_gpio_in(mpicdev, MPC8544_I2C_IRQ)); + memory_region_add_subregion(ccsr_addr_space, MPC8544_I2C_REGS_OFFSET, + sysbus_mmio_get_region(s, 0)); + i2c = (I2CBus *)qdev_get_child_bus(dev, "i2c"); + i2c_create_slave(i2c, "ds1338", RTC_REGS_OFFSET); + /* General Utility device */ dev = qdev_create(NULL, "mpc8544-guts"); |