add raspi4 hdmi driver

bsp/raspberry-pi/raspi4-32/driver/board.c

@@ -19,8 +19,10 @@
 
 struct mem_desc platform_mem_desc[] = {
     {0x0, 0x6400000, 0x0, NORMAL_MEM},
-    {0xFE000000, 0xFE400000, 0xFE000000, DEVICE_MEM},//uart gpio
-    {0xFF800000, 0xFFA00000, 0xFF800000, DEVICE_MEM} //gic
+    {0x8000000, 0x8100000, 0x8000000, DEVICE_MEM},    //mbox msg
+    {0x0EA00000, 0x0EE00000, 0x0EA00000, DEVICE_MEM}, //framebuffer
+    {0xFE000000, 0xFE400000, 0xFE000000, DEVICE_MEM}, //peripheral
+    {0xFF800000, 0xFFA00000, 0xFF800000, DEVICE_MEM}  //gic
 };
 
 const rt_uint32_t platform_mem_desc_size = sizeof(platform_mem_desc)/sizeof(platform_mem_desc[0]);

bsp/raspberry-pi/raspi4-32/driver/drv_hdmi.h

@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author         Notes
+ * 2020-10-26     bigmagic       first version
+ */
+#ifndef __DRV_HDMI_H__
+#define __DRV_HDMI_H__
+
+#define RGB(r, g, b) ((((r))<<16) | (((g))<<8) | ((b)))
+
+struct rt_hdmi_fb_device
+{
+    struct rt_device parent;
+
+    rt_uint32_t width;
+    rt_uint32_t height;
+    rt_uint32_t depth;
+    rt_uint32_t pitch;
+    rt_uint32_t pixel_format;
+
+    rt_uint8_t *fb;
+};
+#endif/* __DRV_HDMI_H__ */

bsp/raspberry-pi/raspi4-32/driver/mbox.c

@@ -49,6 +49,52 @@ int mbox_call(unsigned char ch, int mmu_enable)
     return 0;
 }
 
+int bcm271x_notify_reboot(void)
+{
+    mbox[0] = 7*4;                          // length of the message
+    mbox[1] = MBOX_REQUEST;                 // this is a request message
+    mbox[2] = MBOX_TAG_NOTIFY_REBOOT;       // (the tag id)
+    mbox[3] = 0x00000004;                   // length + 4
+    mbox[4] = 0x00000000;                   // size of the data
+    mbox[5] = 0x00000000;                   // request
+
+    mbox[6] = MBOX_TAG_LAST; 
+    mbox_call(8, MMU_DISABLE);
+    return 0;
+}
+
+int bcm271x_notify_xhci_reset(void)
+{
+    mbox[0] = 7*4;                          // length of the message
+    mbox[1] = MBOX_REQUEST;                 // this is a request message
+    mbox[2] = MBOX_TAG_NOTIFY_XHCI_RESET;   // (the tag id)
+    mbox[3] = 0x00000004;                   // length + 4
+    mbox[4] = 0x00000004;                   // size of the data
+    mbox[5] = 0x00100000;                   // request
+    mbox[6] = MBOX_TAG_LAST; 
+    mbox_call(8, MMU_DISABLE);
+    return 0;
+}
+
+int bcm271x_gpu_enable(void)
+{
+    mbox[0] = 12*4;                          // length of the message
+    mbox[1] = MBOX_REQUEST;                  // this is a request message
+    
+    mbox[2] = MBOX_TAG_CLOCK_SET_RATE;
+    mbox[3] = 0x00000008;                   // (the tag id)
+    mbox[4] = 0x00000008;                   // (the tag id)
+    mbox[5] = 5;                            // V3D
+    mbox[6] = 250 * 1000 * 1000;
+    mbox[7] = MBOX_TAG_ENABLE_QPU;                   // (the tag id)
+    mbox[8] = 0x00000004;                   // (size of the buffer)
+    mbox[9] = 0x00000004;                   // (size of the data)
+    mbox[10] = 0x00000001;
+    mbox[11] = MBOX_TAG_LAST;               // end tag
+    mbox_call(8, MMU_DISABLE);
+    return mbox[1];
+}
+
 int bcm271x_mbox_hardware_get_model(void)
 {
     mbox[0] = 8*4;                          // length of the message

bsp/raspberry-pi/raspi4-32/driver/mbox.h

@@ -35,7 +35,7 @@ extern volatile unsigned int* mbox;
 /* tags */
 #define MBOX_TAG_SETPOWER       0x28001
 #define MBOX_TAG_SETCLKRATE     0x38002
-#define MBOX_GET_MAC_ADDRESS	0x10003
+#define MBOX_GET_MAC_ADDRESS    0x10003
 #define MBOX_TAG_LAST           0
 
 #define MMIO_BASE       0xFE000000
@@ -50,14 +50,14 @@ extern volatile unsigned int* mbox;
 #define MBOX_FULL       0x80000000
 #define MBOX_EMPTY      0x40000000
 
-#define DEVICE_ID_SD_CARD	0
-#define DEVICE_ID_USB_HCD	3
-#define POWER_STATE_OFF		(0 << 0)
-#define POWER_STATE_ON		(1 << 0)
-#define POWER_STATE_WAIT	(1 << 1)
-#define POWER_STATE_NO_DEVICE	(1 << 1)	// in response
-#define MMU_ENABLE 1
-#define MMU_DISABLE 0
+#define DEVICE_ID_SD_CARD        (0)
+#define DEVICE_ID_USB_HCD        (3)
+#define POWER_STATE_OFF          (0 << 0)
+#define POWER_STATE_ON           (1 << 0)
+#define POWER_STATE_WAIT         (1 << 1)
+#define POWER_STATE_NO_DEVICE    (1 << 1)    // in response
+#define MMU_ENABLE               (1)
+#define MMU_DISABLE              (0)
 
 /*
  * raspi hardware info
@@ -102,9 +102,42 @@ enum {
     MBOX_TAG_TEMP_GET_MAX   = 0x0003000A,
 };
 
-#define MBOX_ADDR 0xc00000
+/*
+ * raspi Memory
+ */
+enum {
+    MBOX_TAG_ALLOCATE_MEMORY = 0x0003000C, // Memory: Allocates Contiguous Memory On The GPU (Response: Handle)
+    MBOX_TAG_LOCK_MEMORY     = 0x0003000D, // Memory: Unlock Buffer (Response: Status)
+    MBOX_TAG_UNLOCK_MEMORY   = 0x0003000E, // Memory: Unlock Buffer (Response: Status)
+    MBOX_TAG_RELEASE_MEMORY  = 0x0003000F, // Memory: Free The Memory Buffer (Response: Status)
+    MBOX_TAG_EXECUTE_CODE    = 0x00030010, // Memory: Calls The Function At Given (Bus) Address And With Arguments Given
+};
+
+/*
+ * raspi GPU
+ */
+enum {
+    MBOX_TAG_EXECUTE_QPU = 0x00030011, // QPU: Calls The QPU Function At Given (Bus) Address And With Arguments Given (Response: Number Of QPUs, Control, No Flush, Timeout In ms)
+    MBOX_TAG_ENABLE_QPU  = 0x00030012, // QPU: Enables The QPU (Response: Enable State)
+};
+
+/*
+ * raspi HDMI
+ */
+#define MBOX_TAG_GET_EDID_BLOCK        0x00030020 // HDMI: Read Specificed EDID Block From Attached HDMI/DVI Device (Response: Block Number, Status, EDID Block (128 Bytes))
+
+/*
+ * raspi NOTIFY
+ */
+#define MBOX_TAG_NOTIFY_REBOOT         0x00030048
+#define MBOX_TAG_NOTIFY_XHCI_RESET     0x00030058
+
+#define MBOX_ADDR 0x08000000
 
 int mbox_call(unsigned char ch, int mmu_enable);
+int bcm271x_notify_reboot(void);
+int bcm271x_notify_xhci_reset(void);
+int bcm271x_gpu_enable(void);
 int bcm271x_mbox_hardware_get_model(void);
 int bcm271x_mbox_hardware_get_revison(void);
 int bcm271x_mbox_hardware_get_mac_address(uint8_t * mac);