zephyr: alloc: Move heap on MT8365 platform to ADSP SRAM

sram0 memory region holds vectors and heap. On MT8365 platform it is
assigned to DRAM. Allocate heap on MT8365 platform on ADSP SRAM instead.

Signed-off-by: Andrew Perepech <andrew.perepech@mediatek.com>

Author: andrew-mtk

src/platform/mtk/dai.c

@@ -24,7 +24,7 @@
 #define SRAM_CPU_START 0x1a210000
 #elif defined(CONFIG_SOC_MT8365)
 #define MTK_AFE_BASE 0x11220000
-#define SRAM_CPU_START 0x40020000
+#define SRAM_CPU_START 0x1e000000
 #else
 #error Unrecognized device
 #endif

zephyr/lib/alloc.c

@@ -120,10 +120,17 @@ char __aligned(8) heapmem[HEAPMEM_SIZE];
 #elif defined(CONFIG_SOC_FAMILY_MTK)
 
 extern char _mtk_adsp_sram_end;
+#if defined(CONFIG_SOC_MT8365)
+#define SRAM_START DT_REG_ADDR(DT_NODELABEL(sram1))
+#define SRAM_SIZE  DT_REG_SIZE(DT_NODELABEL(sram1))
+#define heapmem ((uint8_t *)SRAM_START)
+#else
 #define SRAM_START DT_REG_ADDR(DT_NODELABEL(sram0))
 #define SRAM_SIZE  DT_REG_SIZE(DT_NODELABEL(sram0))
-#define SRAM_END   (SRAM_START + SRAM_SIZE)
 #define heapmem ((uint8_t *)ALIGN_UP((uintptr_t)&_mtk_adsp_sram_end, PLATFORM_DCACHE_ALIGN))
+#endif /* CONFIG_SOC_MT8365 */
+
+#define SRAM_END   (SRAM_START + SRAM_SIZE)
 
 /* Heap size is limited to 0x7fffU chunk units when CONFIG_SYS_HEAP_SMALL_ONLY is set */
 #if defined(CONFIG_SYS_HEAP_SMALL_ONLY)