ARM: keystone2: clock: add K2E clock support

This patch adds clock definitions and commands to support Keystone2
K2E SOC.

Signed-off-by: Hao Zhang <hzhang@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>

1 files changed, 68 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-keystone/clock-k2e.h b/arch/arm/include/asm/arch-keystone/clock-k2e.h
new file mode 100644
index 0000000000..41478110e5
--- /dev/null
+++ b/arch/arm/include/asm/arch-keystone/clock-k2e.h
@@ -0,0 +1,68 @@
+/*
+ * K2E: Clock management APIs
+ *
+ * (C) Copyright 2012-2014
+ *     Texas Instruments Incorporated, <www.ti.com>
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#ifndef __ASM_ARCH_CLOCK_K2E_H
+#define __ASM_ARCH_CLOCK_K2E_H
+
+enum ext_clk_e {
+	sys_clk,
+	alt_core_clk,
+	pa_clk,
+	ddr3_clk,
+	mcm_clk,
+	pcie_clk,
+	sgmii_clk,
+	xgmii_clk,
+	usb_clk,
+	ext_clk_count /* number of external clocks */
+};
+
+extern unsigned int external_clk[ext_clk_count];
+
+enum clk_e {
+	core_pll_clk,
+	pass_pll_clk,
+	ddr3_pll_clk,
+	sys_clk0_clk,
+	sys_clk0_1_clk,
+	sys_clk0_2_clk,
+	sys_clk0_3_clk,
+	sys_clk0_4_clk,
+	sys_clk0_6_clk,
+	sys_clk0_8_clk,
+	sys_clk0_12_clk,
+	sys_clk0_24_clk,
+	sys_clk1_clk,
+	sys_clk1_3_clk,
+	sys_clk1_4_clk,
+	sys_clk1_6_clk,
+	sys_clk1_12_clk,
+	sys_clk2_clk,
+	sys_clk3_clk
+};
+
+#define KS2_CLK1_6	sys_clk0_6_clk
+
+/* PLL identifiers */
+enum pll_type_e {
+	CORE_PLL,
+	PASS_PLL,
+	DDR3_PLL,
+};
+
+#define CORE_PLL_800	{CORE_PLL, 16, 1, 2}
+#define CORE_PLL_1000	{CORE_PLL, 20, 1, 2}
+#define CORE_PLL_1200	{CORE_PLL, 24, 1, 2}
+#define PASS_PLL_1000	{PASS_PLL, 20, 1, 2}
+#define DDR3_PLL_200	{DDR3_PLL, 4,  1, 2}
+#define DDR3_PLL_400	{DDR3_PLL, 16, 1, 4}
+#define DDR3_PLL_800	{DDR3_PLL, 16, 1, 2}
+#define DDR3_PLL_333	{DDR3_PLL, 20, 1, 6}
+
+#endif