Merge pull request #92 from YuzukiHD/dev

[driver] add basic driver for dram param
YuzukiHD · May 27, 2024 · 7335ddf · 7335ddf
2 parents 7d1ec0f + 6aeaa39
commit 7335ddf
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Showing 6 changed files with 1,621 additions and 1,589 deletions.
diff --git a/board/avaota-a1/board.c b/board/avaota-a1/board.c
@@ -104,6 +104,12 @@ sunxi_i2c_t i2c_pmu = {
         .gpio_sda = {GPIO_PIN(GPIO_PORTL, 1), GPIO_PERIPH_MUX2},
 };
 
+enum dram_training_type {
+    DRAM_TRAINING_OFF = 0x60,
+    DRAM_TRAINING_HALF = 0x860,
+    DRAM_TRAINING_FULL = 0xc60,
+};
+
 const uint32_t dram_para[32] = {
         1200,
         0x8,
@@ -135,7 +141,7 @@ const uint32_t dram_para[32] = {
         0x802f3333,
         0xc7c5c4c2,
         0x3533302f,
-        0x060,
+        DRAM_TRAINING_HALF,
         0x48484848,
 };
 

diff --git a/board/avaota-a1/extlinux_boot/main.c b/board/avaota-a1/extlinux_boot/main.c
@@ -727,7 +727,7 @@ int main(void) {
     enable_sram_a3();
 
     /* Initialize the DRAM and enable memory management unit (MMU). */
-    uint64_t dram_size = sunxi_dram_init(NULL);
+    uint64_t dram_size = sunxi_dram_init((void *) dram_para);
 
     printk_debug("DRAM Size = %dM\n", dram_size);