[PATCH v2 08/14] clk: samsung: exynos8855: add block peris clock support

[Raghav Sharma]

Register compatible and cmu_info data to support clocks.
CMU_PERIS, this provides clocks for PERIS

Co-developed-by: Alim Akhtar <alim.akhtar at samsung.com>
Signed-off-by: Alim Akhtar <alim.akhtar at samsung.com>
Signed-off-by: Raghav Sharma <raghav.s at samsung.com>
---
 drivers/clk/samsung/clk-exynos8855.c | 98 ++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)

diff --git a/drivers/clk/samsung/clk-exynos8855.c b/drivers/clk/samsung/clk-exynos8855.c
index 5394706d214c..2bf889a478bc 100644
--- a/drivers/clk/samsung/clk-exynos8855.c
+++ b/drivers/clk/samsung/clk-exynos8855.c
@@ -18,7 +18,9 @@
 /* NOTE: Must be equal to the last clock ID increased by one */
 #define CLKS_NR_TOP                     (CLKCMU_DOUT_G3D_HTU + 1)
 #define CLKS_NR_PERIC                   (CLK_GOUT_USI_PERIC + 1)
+#define CLKS_NR_PERIS                   (CLK_GOUT_WDT1_PERIS + 1)
 
+#define EXYNOS8855_PERIS_GATE_DBG_OFFSET      0x2004
 #define EXYNOS8855_PERIC_GATE_DBG_OFFSET      0x2024
 #define EXYNOS8855_TOP_GATE_DBG_OFFSET      0x20A0
 
@@ -1094,6 +1096,99 @@ static const struct samsung_cmu_info peric_cmu_info __initconst = {
 	.memclk_offset          = EXYNOS8855_MEMCLK_OFFSET,
 };
 
+/* ---- CMU_PERIS --------------------------------------------------------- */
+
+/* Register Offset definitions for CMU_PERIS (0x10030000) */
+#define CMU_PERIS_PLL_CON0_MUX_CLKCMU_PERIS_NOC_USER           0x600
+#define CMU_PERIS_CLK_CON_MUX_CLK_PERIS_GIC                    0x1000
+#define CMU_PERIS_PLL_CON0_MUX_CLK_PERIS_GIC_USER              0x610
+#define CMU_PERIS_CLK_CON_DIV_CLK_PERIS_NOCP                   0x1800
+#define CMU_PERIS_CLK_CON_DIV_CLK_PERIS_OTP                    0x1804
+#define CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_CMU_PERIS_IPCLKPORT_PCLK     0x201c
+#define CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_SYSREG_PERIS_IPCLKPORT_PCLK  0x2040
+#define CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_WDT0_IPCLKPORT_PCLK          0x2048
+#define CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_WDT1_IPCLKPORT_PCLK          0x204c
+#define CMU_PERIS_CONTROLLER_OPTION0_CMU_CTRL                  0x800
+
+static const unsigned long peris_clk_regs[] __initconst = {
+	CMU_PERIS_PLL_CON0_MUX_CLKCMU_PERIS_NOC_USER,
+	CMU_PERIS_CLK_CON_MUX_CLK_PERIS_GIC,
+	CMU_PERIS_PLL_CON0_MUX_CLK_PERIS_GIC_USER,
+	CMU_PERIS_CLK_CON_DIV_CLK_PERIS_NOCP,
+	CMU_PERIS_CLK_CON_DIV_CLK_PERIS_OTP,
+	CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_CMU_PERIS_IPCLKPORT_PCLK,
+	CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_SYSREG_PERIS_IPCLKPORT_PCLK,
+	CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_WDT0_IPCLKPORT_PCLK,
+	CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_WDT1_IPCLKPORT_PCLK,
+	CMU_PERIS_CONTROLLER_OPTION0_CMU_CTRL,
+};
+
+/* List of parent clocks for Muxes in CMU_PERIS */
+PNAME(mout_clkcmu_peris_noc_user_p) = { "oscclk", "dout_clkcmu_peris_noc" };
+PNAME(mout_clk_peris_gic_p) = { "oscclk", "mout_clkcmu_peris_gic_user" };
+PNAME(mout_clkcmu_peris_gic_user_p) = { "oscclk", "dout_clkcmu_peris_gic" };
+
+static const struct samsung_mux_clock peris_mux_clks[] __initconst = {
+	MUX(CLK_MOUT_PERIS_NOC_USER, "mout_clkcmu_peris_noc_user",
+	    mout_clkcmu_peris_noc_user_p, CMU_PERIS_PLL_CON0_MUX_CLKCMU_PERIS_NOC_USER, 4, 1),
+	MUX(CLK_MOUT_PERIS_GIC, "mout_clk_peris_gic",
+	    mout_clk_peris_gic_p, CMU_PERIS_CLK_CON_MUX_CLK_PERIS_GIC, 0, 1),
+	MUX(CLK_MOUT_PERIS_GIC_USER, "mout_clkcmu_peris_gic_user",
+	    mout_clkcmu_peris_gic_user_p, CMU_PERIS_PLL_CON0_MUX_CLK_PERIS_GIC_USER, 4, 1),
+};
+
+static const struct samsung_div_clock peris_div_clks[] __initconst = {
+	DIV(CLK_DOUT_PERIS_NOCP, "dout_clkcmu_peris_nocp",
+	    "mout_clkcmu_peris_noc_user", CMU_PERIS_CLK_CON_DIV_CLK_PERIS_NOCP,
+	    0, 4),
+	DIV(CLK_DOUT_PERIS_OTP, "dout_clkcmu_peris_otp",
+	    "oscclk", CMU_PERIS_CLK_CON_DIV_CLK_PERIS_OTP,
+	    0, 4),
+};
+
+static const struct samsung_gate_clock peris_gate_clks[] __initconst = {
+	/* System will hang if this critical clock is gated */
+	GATE(CLK_GOUT_CMU_PERIS, "gout_cmu_peris",
+	     "dout_clkcmu_peris_nocp",
+	     CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_CMU_PERIS_IPCLKPORT_PCLK,
+	     21, 0, 0),
+	GATE(CLK_GOUT_SYSREG_PERIS, "gout_sysreg_peris",
+	     "dout_clkcmu_peris_nocp",
+	     CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_SYSREG_PERIS_IPCLKPORT_PCLK,
+	     21, 0, 0),
+	GATE(CLK_GOUT_WDT0_PERIS, "gout_wdt0_peris",
+	     "dout_clkcmu_peris_nocp",
+	     CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_WDT0_IPCLKPORT_PCLK,
+	     21, 0, 0),
+	GATE(CLK_GOUT_WDT1_PERIS, "gout_wdt1_peris",
+	     "dout_clkcmu_peris_nocp",
+	     CMU_PERIS_CLK_CON_GAT_BLK_PERIS_UID_WDT1_IPCLKPORT_PCLK,
+	     21, 0, 0),
+};
+
+static const unsigned long dcrg_sysreg[] __initconst = {
+	EXYNOS8855_DRCG_EN_OFFSET,
+};
+
+static const struct samsung_cmu_info peris_cmu_info __initconst = {
+	.mux_clks               = peris_mux_clks,
+	.nr_mux_clks            = ARRAY_SIZE(peris_mux_clks),
+	.div_clks               = peris_div_clks,
+	.nr_div_clks            = ARRAY_SIZE(peris_div_clks),
+	.gate_clks              = peris_gate_clks,
+	.nr_gate_clks           = ARRAY_SIZE(peris_gate_clks),
+	.nr_clk_ids             = CLKS_NR_PERIS,
+	.clk_regs               = peris_clk_regs,
+	.nr_clk_regs            = ARRAY_SIZE(peris_clk_regs),
+	.sysreg_clk_regs	= dcrg_sysreg,
+	.nr_sysreg_clk_regs	= ARRAY_SIZE(dcrg_sysreg),
+	.clk_name               = "bus",
+	.auto_clock_gate        = true,
+	.gate_dbg_offset        = EXYNOS8855_PERIS_GATE_DBG_OFFSET,
+	.option_offset          = CMU_PERIS_CONTROLLER_OPTION0_CMU_CTRL,
+	.drcg_offset            = EXYNOS8855_DRCG_EN_OFFSET,
+};
+
 static int __init exynos8855_cmu_probe(struct platform_device *pdev)
 {
 	const struct samsung_cmu_info *info;
@@ -1109,6 +1204,9 @@ static const struct of_device_id exynos8855_cmu_of_match[] = {
 	{
 		.compatible = "samsung,exynos8855-cmu-peric",
 		.data = &peric_cmu_info,
+	}, {
+		.compatible = "samsung,exynos8855-cmu-peris",
+		.data = &peris_cmu_info,
 	}, {
 		.compatible = "samsung,exynos8855-cmu-top",
 		.data = &top_cmu_info,
-- 
2.34.1