The code used default values for PXA270 to configure CCCR. For PXA255,
the resulting register value is invalid (unsupported) and resulted
in a division by zero in the Linux kernel. Use default values from
datasheet instead.
Signed-off-by: Guenter Roeck <li...@roeck-us.net>
---
hw/arm/pxa2xx.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/hw/arm/pxa2xx.c b/hw/arm/pxa2xx.c
index 2a2a821..4d9aed4 100644
--- a/hw/arm/pxa2xx.c
+++ b/hw/arm/pxa2xx.c
@@ -2274,7 +2274,9 @@ PXA2xxState *pxa255_init(MemoryRegion *address_space,
unsigned int sdram_size)
qdev_get_gpio_in(s->pic, PXA2XX_PIC_LCD));
s->cm_base = 0x41300000;
- s->cm_regs[CCCR >> 2] = 0x02000210; /* 416.0 MHz */
+ s->cm_regs[CCCR >> 2] = 0x00000121; /* from datasheet */
+ s->cm_regs[CKEN >> 2] = 0x00017def; /* from datasheet */
+
s->clkcfg = 0x00000009; /* Turbo mode active */
memory_region_init_io(&s->cm_iomem, NULL, &pxa2xx_cm_ops, s, "pxa2xx-cm",
0x1000);
memory_region_add_subregion(address_space, s->cm_base, &s->cm_iomem);
--
2.5.0
