clk: Revert PDM clock initialization.

AOP does it itself, and doing it in m1n1 confuses it into not
being able to boot.

Signed-off-by: Sasha Finkelstein <[email protected]>

src/clk.c

@@ -6,8 +6,7 @@
 #include "types.h"
 #include "utils.h"
 
-#define CLK_ENABLE BIT(31)
-#define CLK_MUX    GENMASK(27, 24)
+#define CLK_MUX GENMASK(27, 24)
 
 #define NCO_BASE 5
 #define NUM_NCOS 5
@@ -37,118 +36,7 @@ void clk_set_mca_muxes(void)
     printf("CLK: Initialized %d MCA clock muxes\n", i);
 }
 
-struct soc_pdm_clk_data {
-    int soc;
-    uint64_t leap_pdm_feed_clkgates[10];
-    uint64_t pdm_pin_clkgates[10];
-};
-
-struct soc_pdm_clk_data pdm_clk_data_t8103 = {
-    .pdm_pin_clkgates =
-        {
-            0x23d240334,
-            0x23d240338,
-            0x23d24033c,
-            0x23d240340,
-            0x23d240344,
-            0x23d240348,
-        },
-    .leap_pdm_feed_clkgates =
-        {
-            0x23d24035c,
-            0x23d240360,
-            0x23d240364,
-            0x23d240368,
-            0x23d24036c,
-            0x23d240370,
-        },
-};
-
-struct soc_pdm_clk_data pdm_clk_data_t600x = {
-    .pdm_pin_clkgates =
-        {
-            0x292240348,
-            0x29224034c,
-            0x292240350,
-            0x292240354,
-            0x292240358,
-            0x29224035c,
-        },
-    .leap_pdm_feed_clkgates =
-        {
-            0x292240360,
-            0x292240364,
-            0x292240368,
-            0x29224036c,
-            0x292240370,
-            0x292240374,
-        },
-};
-
-struct soc_pdm_clk_data pdm_clk_data_t8110 = {
-    /* FILL ME: range 0x23d240300...0x23d24037c */
-};
-
-struct soc_pdm_clk_data pdm_clk_data_t602x = {
-    /* FILL ME: range 0x29e240300...0x29e240374 */
-};
-
-void clk_ungate_pdm_channels(struct soc_pdm_clk_data *data, int chanmask)
-{
-    int nhits = 0;
-
-    for (int i = 0; chanmask >> i != 0; i += 1) {
-        if (chanmask & BIT(i)) {
-            mask32(data->pdm_pin_clkgates[i / 2], CLK_ENABLE, CLK_ENABLE);
-            mask32(data->leap_pdm_feed_clkgates[i / 2], CLK_ENABLE, CLK_ENABLE);
-            nhits++;
-        }
-    }
-
-    printf("CLK: Un-gated clocks of %d PDM channels\n", nhits);
-}
-
-void clk_set_pdm_gates(void)
-{
-    int alc_node = adt_path_offset(adt, "/arm-io/alc0");
-
-    if (alc_node < 0) {
-        printf("CLK: Model has no internal microphones, skipping PDM clock init\n");
-        return;
-    }
-
-    /*
-     * We don't need to differentiate between machine models here since Apple
-     * seems to always use the same arrangement on all models with a given SoC.
-     */
-    switch (chip_id) {
-        case T8103:
-            clk_ungate_pdm_channels(&pdm_clk_data_t8103, BIT(6) | BIT(7) | BIT(9));
-            break;
-
-        case T6000 ... T6002:
-            clk_ungate_pdm_channels(&pdm_clk_data_t600x, BIT(6) | BIT(7) | BIT(9));
-            break;
-
-            // TODO: missing clk_data for the SoCs below
-#if 0
-    case T8110:
-        clk_ungate_pdm_channels(&pdm_clk_data_t8110, BIT(2) | BIT(3) | BIT(5));
-        break;
-
-    case T6020 ... T6021:
-        clk_ungate_pdm_channels(&pdm_clk_data_t602x, BIT(2) | BIT(3) | BIT(9));
-        break;
-#endif
-
-        default:
-            printf("CLK: Missing SoC PDM clock data\n");
-            break;
-    }
-}
-
 void clk_init(void)
 {
     clk_set_mca_muxes();
-    clk_set_pdm_gates();
 }