apl: platform: set ownership to DSP

Sets ownership of LPGPDMA, DMIC, I2S and some other generic registers
to DSP. Normally it's set by ROM, but on some older APL steppings
last two I2S ports were omitted, so FW got exception on boot.

Signed-off-by: Tomasz Lauda <tomasz.lauda@linux.intel.com>

Author: tlauda

src/platform/apollolake/include/platform/shim.h

@@ -158,6 +158,19 @@
 
 #define SHIM_L2_MECS		(SHIM_BASE + 0xd0)
 
+#define SHIM_LPGPDMAC(x)	(0x1110 + (2 * x))
+#define SHIM_LPGPDMAC_CTLOSEL	(1 << 15)
+#define SHIM_LPGPDMAC_CHOSEL	(0xFF)
+
+#define SHIM_DSPIOPO		0x1118
+#define SHIM_DSPIOPO_DMICOSEL	(1 << 0)
+#define SHIM_DSPIOPO_I2SOSEL	(0x3F << 8)
+
+#define SHIM_GENO		0x111C
+#define SHIM_GENO_SHIMOSEL	(1 << 0)
+#define SHIM_GENO_MDIVOSEL	(1 << 1)
+#define SHIM_GENO_DIOPTOSEL	(1 << 2)
+
 #define SHIM_L2_CACHE_CTRL	(SHIM_BASE + 0x500)
 #define SHIM_L2_PREF_CFG	(SHIM_BASE + 0x508)
 #define SHIM_L2_CACHE_PREF	(SHIM_BASE + 0x510)

src/platform/apollolake/platform.c

@@ -194,12 +194,30 @@ static void platform_memory_windows_init(void)
 	dcache_writeback_region((void *)HP_SRAM_WIN3_BASE, HP_SRAM_WIN3_SIZE);
 }
 
+/* init HW  */
+static void platform_init_hw(void)
+{
+	io_reg_write(SHIM_GENO, SHIM_GENO_SHIMOSEL |
+		     SHIM_GENO_MDIVOSEL | SHIM_GENO_DIOPTOSEL);
+
+	io_reg_write(SHIM_DSPIOPO,
+		     SHIM_DSPIOPO_DMICOSEL | SHIM_DSPIOPO_I2SOSEL);
+
+	io_reg_write(SHIM_LPGPDMAC(0),
+		     SHIM_LPGPDMAC_CHOSEL | SHIM_LPGPDMAC_CTLOSEL);
+	io_reg_write(SHIM_LPGPDMAC(1),
+		     SHIM_LPGPDMAC_CHOSEL | SHIM_LPGPDMAC_CTLOSEL);
+}
+
 int platform_init(struct sof *sof)
 {
 	struct dai *ssp;
 	struct dai *dmic0;
 	int i, ret;
 
+	trace_point(TRACE_BOOT_PLATFORM_ENTRY);
+	platform_init_hw();
+
 	platform_interrupt_init();
 
 	trace_point(TRACE_BOOT_PLATFORM_MBOX);