i.MX6UL: Add a specific GPT timer instance for the i.MX6UL

The i.MX6UL doesn't support CLK_HIGH ou CLK_HIGH_DIV clock source.

Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/arm/fsl-imx6ul.c

@@ -81,7 +81,7 @@ static void fsl_imx6ul_init(Object *obj)
      */
     for (i = 0; i < FSL_IMX6UL_NUM_GPTS; i++) {
         snprintf(name, NAME_SIZE, "gpt%d", i);
-        object_initialize_child(obj, name, &s->gpt[i], TYPE_IMX7_GPT);
+        object_initialize_child(obj, name, &s->gpt[i], TYPE_IMX6UL_GPT);
     }
 
     /*

hw/misc/imx6ul_ccm.c

@@ -522,12 +522,6 @@ static uint32_t imx6ul_ccm_get_clock_frequency(IMXCCMState *dev, IMXClk clock)
     case CLK_32k:
         freq = CKIL_FREQ;
         break;
-    case CLK_HIGH:
-        freq = CKIH_FREQ;
-        break;
-    case CLK_HIGH_DIV:
-        freq = CKIH_FREQ / 8;
-        break;
     default:
         qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: unsupported clock %d\n",
                       TYPE_IMX6UL_CCM, __func__, clock);

hw/timer/imx_gpt.c

@@ -115,6 +115,17 @@ static const IMXClk imx6_gpt_clocks[] = {
     CLK_HIGH,      /* 111 reference clock */
 };
 
+static const IMXClk imx6ul_gpt_clocks[] = {
+    CLK_NONE,      /* 000 No clock source */
+    CLK_IPG,       /* 001 ipg_clk, 532MHz*/
+    CLK_IPG_HIGH,  /* 010 ipg_clk_highfreq */
+    CLK_EXT,       /* 011 External clock */
+    CLK_32k,       /* 100 ipg_clk_32k */
+    CLK_NONE,      /* 101 not defined */
+    CLK_NONE,      /* 110 not defined */
+    CLK_NONE,      /* 111 not defined */
+};
+
 static const IMXClk imx7_gpt_clocks[] = {
     CLK_NONE,      /* 000 No clock source */
     CLK_IPG,       /* 001 ipg_clk, 532MHz*/
@@ -539,6 +550,13 @@ static void imx6_gpt_init(Object *obj)
     s->clocks = imx6_gpt_clocks;
 }
 
+static void imx6ul_gpt_init(Object *obj)
+{
+    IMXGPTState *s = IMX_GPT(obj);
+
+    s->clocks = imx6ul_gpt_clocks;
+}
+
 static void imx7_gpt_init(Object *obj)
 {
     IMXGPTState *s = IMX_GPT(obj);
@@ -566,6 +584,12 @@ static const TypeInfo imx6_gpt_info = {
     .instance_init = imx6_gpt_init,
 };
 
+static const TypeInfo imx6ul_gpt_info = {
+    .name = TYPE_IMX6UL_GPT,
+    .parent = TYPE_IMX25_GPT,
+    .instance_init = imx6ul_gpt_init,
+};
+
 static const TypeInfo imx7_gpt_info = {
     .name = TYPE_IMX7_GPT,
     .parent = TYPE_IMX25_GPT,
@@ -577,6 +601,7 @@ static void imx_gpt_register_types(void)
     type_register_static(&imx25_gpt_info);
     type_register_static(&imx31_gpt_info);
     type_register_static(&imx6_gpt_info);
+    type_register_static(&imx6ul_gpt_info);
     type_register_static(&imx7_gpt_info);
 }
 

include/hw/timer/imx_gpt.h

@@ -78,6 +78,7 @@
 #define TYPE_IMX25_GPT "imx25.gpt"
 #define TYPE_IMX31_GPT "imx31.gpt"
 #define TYPE_IMX6_GPT "imx6.gpt"
+#define TYPE_IMX6UL_GPT "imx6ul.gpt"
 #define TYPE_IMX7_GPT "imx7.gpt"
 
 #define TYPE_IMX_GPT TYPE_IMX25_GPT