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| author | Peter Maydell <peter.maydell@linaro.org> | 2011-07-22 13:42:39 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2011-08-17 23:01:21 +0000 |
| commit | 242ea2c6bc96473d37894b258a28a2162208228c (patch) | |
| tree | eb38f2714b260eddfd688ae3e2319e5314ef4037 /hw/versatilepb.c | |
| parent | 4fbf55568bb53a27a8c6270f1d3e2f6daf05c705 (diff) | |
| download | qemu-242ea2c6bc96473d37894b258a28a2162208228c.tar.gz | |
versatilepb: Implement SYS_CLCD mux control register bits
On the Versatile PB, PL110 graphics adaptor only natively supports
5551 pixel format; an external mux swaps bits around to allow
RGB565 and BGR565, under the control of bits [1:0] in the SYS_CLCD
system register.
Implement these SYS_CLCD register bits, and use a gpio line to
feed them out of the system register model, across the versatilepb
board and into the pl110 so we can select the right format.
This is necessary as recent Linux versatile kernels default to
programming the CLCD and mux for 16 bit BGR rather than 16 bit RGB.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/versatilepb.c')
| -rw-r--r-- | hw/versatilepb.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/hw/versatilepb.c b/hw/versatilepb.c index 147fe29b61..49f8f5fc56 100644 --- a/hw/versatilepb.c +++ b/hw/versatilepb.c @@ -180,7 +180,7 @@ static void versatile_init(ram_addr_t ram_size, qemu_irq *cpu_pic; qemu_irq pic[32]; qemu_irq sic[32]; - DeviceState *dev; + DeviceState *dev, *sysctl; PCIBus *pci_bus; NICInfo *nd; int n; @@ -198,7 +198,12 @@ static void versatile_init(ram_addr_t ram_size, /* SDRAM at address zero. */ cpu_register_physical_memory(0, ram_size, ram_offset | IO_MEM_RAM); - arm_sysctl_init(0x10000000, 0x41007004, 0x02000000); + sysctl = qdev_create(NULL, "realview_sysctl"); + qdev_prop_set_uint32(sysctl, "sys_id", 0x41007004); + qdev_init_nofail(sysctl); + qdev_prop_set_uint32(sysctl, "proc_id", 0x02000000); + sysbus_mmio_map(sysbus_from_qdev(sysctl), 0, 0x10000000); + cpu_pic = arm_pic_init_cpu(env); dev = sysbus_create_varargs("pl190", 0x10140000, cpu_pic[0], cpu_pic[1], NULL); @@ -250,7 +255,9 @@ static void versatile_init(ram_addr_t ram_size, /* The versatile/PB actually has a modified Color LCD controller that includes hardware cursor support from the PL111. */ - sysbus_create_simple("pl110_versatile", 0x10120000, pic[16]); + dev = sysbus_create_simple("pl110_versatile", 0x10120000, pic[16]); + /* Wire up the mux control signals from the SYS_CLCD register */ + qdev_connect_gpio_out(sysctl, 0, qdev_get_gpio_in(dev, 0)); sysbus_create_varargs("pl181", 0x10005000, sic[22], sic[1], NULL); sysbus_create_varargs("pl181", 0x1000b000, sic[23], sic[2], NULL); |