hw/misc/bcm2835_cprman: add the DSI0HSCK multiplexer

This simple mux sits between the PLL channels and the DSI0E and DSI0P
clock muxes. This mux selects between PLLA-DSI0 and PLLD-DSI0 channel
and outputs the selected signal to source number 4 of DSI0E/P clock
muxes. It is controlled by the cm_dsi0hsck register.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Luc Michel <luc@lmichel.fr>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 15 insertions, 0 deletions

diff --git a/include/hw/misc/bcm2835_cprman.h b/include/hw/misc/bcm2835_cprman.h
index 0fc8f68845..3df4ceedd2 100644
--- a/include/hw/misc/bcm2835_cprman.h
+++ b/include/hw/misc/bcm2835_cprman.h
@@ -174,6 +174,20 @@ typedef struct CprmanClockMuxState {
     struct CprmanClockMuxState *backref[CPRMAN_NUM_CLOCK_MUX_SRC];
 } CprmanClockMuxState;
 
+typedef struct CprmanDsi0HsckMuxState {
+    /*< private >*/
+    DeviceState parent_obj;
+
+    /*< public >*/
+    CprmanClockMux id;
+
+    uint32_t *reg_cm;
+
+    Clock *plla_in;
+    Clock *plld_in;
+    Clock *out;
+} CprmanDsi0HsckMuxState;
+
 struct BCM2835CprmanState {
     /*< private >*/
     SysBusDevice parent_obj;
@@ -184,6 +198,7 @@ struct BCM2835CprmanState {
     CprmanPllState plls[CPRMAN_NUM_PLL];
     CprmanPllChannelState channels[CPRMAN_NUM_PLL_CHANNEL];
     CprmanClockMuxState clock_muxes[CPRMAN_NUM_CLOCK_MUX];
+    CprmanDsi0HsckMuxState dsi0hsck_mux;
 
     uint32_t regs[CPRMAN_NUM_REGS];
     uint32_t xosc_freq;