CMU_BUSMC is responsible to control clocks of BLK_BUSMC which represents
Data/Peri buses. Most clocks except PDMA/SPDMA are not necessary to
be controlled by HLOS. So, this adds PDMA/SPDMA gate clocks.
Signed-off-by: Chanho Park <chanho61.park@xxxxxxxxxxx>
---
drivers/clk/samsung/clk-exynosautov9.c | 55 ++++++++++++++++++++++++++
1 file changed, 55 insertions(+)
diff --git a/drivers/clk/samsung/clk-exynosautov9.c b/drivers/clk/samsung/clk-exynosautov9.c
index 78b7366702a6..65d769875297 100644
--- a/drivers/clk/samsung/clk-exynosautov9.c
+++ b/drivers/clk/samsung/clk-exynosautov9.c
@@ -960,6 +960,58 @@ static void __init exynosautov9_cmu_top_init(struct device_node *np)
CLK_OF_DECLARE(exynosautov9_cmu_top, "samsung,exynosautov9-cmu-top",
exynosautov9_cmu_top_init);
+/* ---- CMU_BUSMC ---------------------------------------------------------- */
+
+/* Register Offset definitions for CMU_BUSMC (0x1b200000) */
+#define PLL_CON0_MUX_CLKCMU_BUSMC_BUS_USER 0x0600
+#define CLK_CON_DIV_DIV_CLK_BUSMC_BUSP 0x1800
+#define CLK_CON_GAT_GOUT_BLK_BUSMC_UID_QE_PDMA0_IPCLKPORT_PCLK 0x2078
+#define CLK_CON_GAT_GOUT_BLK_BUSMC_UID_QE_SPDMA_IPCLKPORT_PCLK 0x2080
+
+static const unsigned long busmc_clk_regs[] __initconst = {
+ PLL_CON0_MUX_CLKCMU_BUSMC_BUS_USER,
+ CLK_CON_DIV_DIV_CLK_BUSMC_BUSP,
+ CLK_CON_GAT_GOUT_BLK_BUSMC_UID_QE_PDMA0_IPCLKPORT_PCLK,
+ CLK_CON_GAT_GOUT_BLK_BUSMC_UID_QE_SPDMA_IPCLKPORT_PCLK,
+};
+
+/* List of parent clocks for Muxes in CMU_BUSMC */
+PNAME(mout_busmc_bus_user_p) = { "oscclk", "dout_clkcmu_busmc_bus" };
+
+static const struct samsung_mux_clock busmc_mux_clks[] __initconst = {
+ MUX(CLK_MOUT_BUSMC_BUS_USER, "mout_busmc_bus_user",
+ mout_busmc_bus_user_p, PLL_CON0_MUX_CLKCMU_BUSMC_BUS_USER, 4, 1),
+};
+
+static const struct samsung_div_clock busmc_div_clks[] __initconst = {
+ DIV(CLK_DOUT_BUSMC_BUSP, "dout_busmc_busp", "mout_busmc_bus_user",
+ CLK_CON_DIV_DIV_CLK_BUSMC_BUSP, 0, 3),
+};
+
+static const struct samsung_gate_clock busmc_gate_clks[] __initconst = {
+ GATE(CLK_GOUT_BUSMC_PDMA0_PCLK, "gout_busmc_pdma0_pclk",
+ "dout_busmc_busp",
+ CLK_CON_GAT_GOUT_BLK_BUSMC_UID_QE_PDMA0_IPCLKPORT_PCLK, 21,
+ 0, 0),
+ GATE(CLK_GOUT_BUSMC_SPDMA_PCLK, "gout_busmc_spdma_pclk",
+ "dout_busmc_busp",
+ CLK_CON_GAT_GOUT_BLK_BUSMC_UID_QE_SPDMA_IPCLKPORT_PCLK, 21,
+ 0, 0),
+};
+
+static const struct samsung_cmu_info busmc_cmu_info __initconst = {
+ .mux_clks = busmc_mux_clks,
+ .nr_mux_clks = ARRAY_SIZE(busmc_mux_clks),
+ .div_clks = busmc_div_clks,
+ .nr_div_clks = ARRAY_SIZE(busmc_div_clks),
+ .gate_clks = busmc_gate_clks,
+ .nr_gate_clks = ARRAY_SIZE(busmc_gate_clks),
+ .nr_clk_ids = BUSMC_NR_CLK,
+ .clk_regs = busmc_clk_regs,
+ .nr_clk_regs = ARRAY_SIZE(busmc_clk_regs),
+ .clk_name = "dout_clkcmu_busmc_bus",
+};
+
/* ---- CMU_CORE ----------------------------------------------------------- */
/* Register Offset definitions for CMU_CORE (0x1b030000) */
@@ -1078,6 +1130,9 @@ static int __init exynosautov9_cmu_probe(struct platform_device *pdev)
static const struct of_device_id exynosautov9_cmu_of_match[] = {
{
+ .compatible = "samsung,exynosautov9-cmu-busmc",
+ .data = &busmc_cmu_info,
+ }, {
.compatible = "samsung,exynosautov9-cmu-core",
.data = &core_cmu_info,
}, {
--
2.36.0
