clk: agilex: Add clock driver for Agilex
Add clock manager driver for Agilex. Provides clock initialization
and get_rate functions.
agilex-clock.h is from Linux commit ID cd2e1ad12247.
Signed-off-by: Chee Hong Ang <chee.hong.ang@intel.com>
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
diff --git a/drivers/clk/altera/clk-agilex.h b/drivers/clk/altera/clk-agilex.h
new file mode 100644
index 0000000..d93328e
--- /dev/null
+++ b/drivers/clk/altera/clk-agilex.h
@@ -0,0 +1,237 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2019 Intel Corporation <www.intel.com>
+ */
+
+#ifndef _CLK_AGILEX_
+#define _CLK_AGILEX_
+
+#define CM_REG_READL(plat, reg) \
+ readl((plat)->regs + (reg))
+
+#define CM_REG_WRITEL(plat, data, reg) \
+ writel(data, (plat)->regs + (reg))
+
+#define CM_REG_CLRBITS(plat, reg, clear) \
+ clrbits_le32((plat)->regs + (reg), (clear))
+
+#define CM_REG_SETBITS(plat, reg, set) \
+ setbits_le32((plat)->regs + (reg), (set))
+
+struct cm_config {
+ /* main group */
+ u32 main_pll_mpuclk;
+ u32 main_pll_nocclk;
+ u32 main_pll_nocdiv;
+ u32 main_pll_pllglob;
+ u32 main_pll_fdbck;
+ u32 main_pll_pllc0;
+ u32 main_pll_pllc1;
+ u32 main_pll_pllc2;
+ u32 main_pll_pllc3;
+ u32 main_pll_pllm;
+
+ /* peripheral group */
+ u32 per_pll_emacctl;
+ u32 per_pll_gpiodiv;
+ u32 per_pll_pllglob;
+ u32 per_pll_fdbck;
+ u32 per_pll_pllc0;
+ u32 per_pll_pllc1;
+ u32 per_pll_pllc2;
+ u32 per_pll_pllc3;
+ u32 per_pll_pllm;
+
+ /* altera group */
+ u32 alt_emacactr;
+ u32 alt_emacbctr;
+ u32 alt_emacptpctr;
+ u32 alt_gpiodbctr;
+ u32 alt_sdmmcctr;
+ u32 alt_s2fuser0ctr;
+ u32 alt_s2fuser1ctr;
+ u32 alt_psirefctr;
+
+ /* incoming clock */
+ u32 hps_osc_clk_hz;
+ u32 fpga_clk_hz;
+ u32 spare[3];
+};
+
+/* Clock Manager registers */
+#define CLKMGR_CTRL 0
+#define CLKMGR_STAT 4
+#define CLKMGR_TESTIOCTRL 8
+#define CLKMGR_INTRGEN 0x0c
+#define CLKMGR_INTRMSK 0x10
+#define CLKMGR_INTRCLR 0x14
+#define CLKMGR_INTRSTS 0x18
+#define CLKMGR_INTRSTK 0x1c
+#define CLKMGR_INTRRAW 0x20
+
+/* Clock Manager Main PPL group registers */
+#define CLKMGR_MAINPLL_EN 0x24
+#define CLKMGR_MAINPLL_ENS 0x28
+#define CLKMGR_MAINPLL_ENR 0x2c
+#define CLKMGR_MAINPLL_BYPASS 0x30
+#define CLKMGR_MAINPLL_BYPASSS 0x34
+#define CLKMGR_MAINPLL_BYPASSR 0x38
+#define CLKMGR_MAINPLL_MPUCLK 0x3c
+#define CLKMGR_MAINPLL_NOCCLK 0x40
+#define CLKMGR_MAINPLL_NOCDIV 0x44
+#define CLKMGR_MAINPLL_PLLGLOB 0x48
+#define CLKMGR_MAINPLL_FDBCK 0x4c
+#define CLKMGR_MAINPLL_MEM 0x50
+#define CLKMGR_MAINPLL_MEMSTAT 0x54
+#define CLKMGR_MAINPLL_PLLC0 0x58
+#define CLKMGR_MAINPLL_PLLC1 0x5c
+#define CLKMGR_MAINPLL_VCOCALIB 0x60
+#define CLKMGR_MAINPLL_PLLC2 0x64
+#define CLKMGR_MAINPLL_PLLC3 0x68
+#define CLKMGR_MAINPLL_PLLM 0x6c
+#define CLKMGR_MAINPLL_FHOP 0x70
+#define CLKMGR_MAINPLL_SSC 0x74
+#define CLKMGR_MAINPLL_LOSTLOCK 0x78
+
+/* Clock Manager Peripheral PPL group registers */
+#define CLKMGR_PERPLL_EN 0x7c
+#define CLKMGR_PERPLL_ENS 0x80
+#define CLKMGR_PERPLL_ENR 0x84
+#define CLKMGR_PERPLL_BYPASS 0x88
+#define CLKMGR_PERPLL_BYPASSS 0x8c
+#define CLKMGR_PERPLL_BYPASSR 0x90
+#define CLKMGR_PERPLL_EMACCTL 0x94
+#define CLKMGR_PERPLL_GPIODIV 0x98
+#define CLKMGR_PERPLL_PLLGLOB 0x9c
+#define CLKMGR_PERPLL_FDBCK 0xa0
+#define CLKMGR_PERPLL_MEM 0xa4
+#define CLKMGR_PERPLL_MEMSTAT 0xa8
+#define CLKMGR_PERPLL_PLLC0 0xac
+#define CLKMGR_PERPLL_PLLC1 0xb0
+#define CLKMGR_PERPLL_VCOCALIB 0xb4
+#define CLKMGR_PERPLL_PLLC2 0xb8
+#define CLKMGR_PERPLL_PLLC3 0xbc
+#define CLKMGR_PERPLL_PLLM 0xc0
+#define CLKMGR_PERPLL_FHOP 0xc4
+#define CLKMGR_PERPLL_SSC 0xc8
+#define CLKMGR_PERPLL_LOSTLOCK 0xcc
+
+/* Clock Manager Altera group registers */
+#define CLKMGR_ALTR_JTAG 0xd0
+#define CLKMGR_ALTR_EMACACTR 0xd4
+#define CLKMGR_ALTR_EMACBCTR 0xd8
+#define CLKMGR_ALTR_EMACPTPCTR 0xdc
+#define CLKMGR_ALTR_GPIODBCTR 0xe0
+#define CLKMGR_ALTR_SDMMCCTR 0xe4
+#define CLKMGR_ALTR_S2FUSER0CTR 0xe8
+#define CLKMGR_ALTR_S2FUSER1CTR 0xec
+#define CLKMGR_ALTR_PSIREFCTR 0xf0
+#define CLKMGR_ALTR_EXTCNTRST 0xf4
+
+#define CLKMGR_CTRL_BOOTMODE BIT(0)
+
+#define CLKMGR_STAT_BUSY BIT(0)
+#define CLKMGR_STAT_MAINPLL_LOCKED BIT(8)
+#define CLKMGR_STAT_MAIN_TRANS BIT(9)
+#define CLKMGR_STAT_PERPLL_LOCKED BIT(16)
+#define CLKMGR_STAT_PERF_TRANS BIT(17)
+#define CLKMGR_STAT_BOOTMODE BIT(24)
+#define CLKMGR_STAT_BOOTCLKSRC BIT(25)
+
+#define CLKMGR_STAT_ALLPLL_LOCKED_MASK \
+ (CLKMGR_STAT_MAINPLL_LOCKED | CLKMGR_STAT_PERPLL_LOCKED)
+
+#define CLKMGR_INTER_MAINPLLLOCKED_MASK 0x00000001
+#define CLKMGR_INTER_PERPLLLOCKED_MASK 0x00000002
+#define CLKMGR_INTER_MAINPLLLOST_MASK 0x00000004
+#define CLKMGR_INTER_PERPLLLOST_MASK 0x00000008
+
+#define CLKMGR_CLKSRC_MASK GENMASK(18, 16)
+#define CLKMGR_CLKSRC_OFFSET 16
+#define CLKMGR_CLKSRC_MAIN 0
+#define CLKMGR_CLKSRC_PER 1
+#define CLKMGR_CLKSRC_OSC1 2
+#define CLKMGR_CLKSRC_INTOSC 3
+#define CLKMGR_CLKSRC_FPGA 4
+#define CLKMGR_CLKCNT_MSK GENMASK(10, 0)
+
+#define CLKMGR_BYPASS_MAINPLL_ALL 0x7
+#define CLKMGR_BYPASS_PERPLL_ALL 0x7f
+
+#define CLKMGR_NOCDIV_L4MAIN_OFFSET 0
+#define CLKMGR_NOCDIV_L4MPCLK_OFFSET 8
+#define CLKMGR_NOCDIV_L4SPCLK_OFFSET 16
+#define CLKMGR_NOCDIV_CSATCLK_OFFSET 24
+#define CLKMGR_NOCDIV_CSTRACECLK_OFFSET 26
+#define CLKMGR_NOCDIV_CSPDBGCLK_OFFSET 28
+#define CLKMGR_NOCDIV_DIVIDER_MASK 0x3
+
+#define CLKMGR_PLLGLOB_PD_MASK BIT(0)
+#define CLKMGR_PLLGLOB_RST_MASK BIT(1)
+#define CLKMGR_PLLGLOB_AREFCLKDIV_MASK GENMASK(11, 8)
+#define CLKMGR_PLLGLOB_DREFCLKDIV_MASK GENMASK(13, 12)
+#define CLKMGR_PLLGLOB_REFCLKDIV_MASK GENMASK(13, 8)
+#define CLKMGR_PLLGLOB_MODCLKDIV_MASK GENMASK(24, 27)
+#define CLKMGR_PLLGLOB_AREFCLKDIV_OFFSET 8
+#define CLKMGR_PLLGLOB_DREFCLKDIV_OFFSET 12
+#define CLKMGR_PLLGLOB_REFCLKDIV_OFFSET 8
+#define CLKMGR_PLLGLOB_MODCLKDIV_OFFSET 24
+#define CLKMGR_PLLGLOB_VCO_PSRC_MASK GENMASK(17, 16)
+#define CLKMGR_PLLGLOB_VCO_PSRC_OFFSET 16
+#define CLKMGR_PLLGLOB_CLR_LOSTLOCK_BYPASS_MASK BIT(29)
+
+#define CLKMGR_VCO_PSRC_EOSC1 0
+#define CLKMGR_VCO_PSRC_INTOSC 1
+#define CLKMGR_VCO_PSRC_F2S 2
+
+#define CLKMGR_MEM_REQ_SET_MSK BIT(24)
+#define CLKMGR_MEM_WR_SET_MSK BIT(25)
+#define CLKMGR_MEM_ERR_MSK BIT(26)
+#define CLKMGR_MEM_WDAT_LSB_OFFSET 16
+#define CLKMGR_MEM_ADDR_MASK GENMASK(15, 0)
+#define CLKMGR_MEM_ADDR_START 0x00004000
+
+#define CLKMGR_PLLCX_EN_SET_MSK BIT(27)
+#define CLKMGR_PLLCX_MUTE_SET_MSK BIT(28)
+
+#define CLKMGR_VCOCALIB_MSCNT_MASK GENMASK(23, 16)
+#define CLKMGR_VCOCALIB_MSCNT_OFFSET 16
+#define CLKMGR_VCOCALIB_HSCNT_MASK GENMASK(9, 0)
+#define CLKMGR_VCOCALIB_MSCNT_CONST 100
+#define CLKMGR_VCOCALIB_HSCNT_CONST 4
+
+#define CLKMGR_PLLM_MDIV_MASK GENMASK(9, 0)
+
+#define CLKMGR_LOSTLOCK_SET_MASK BIT(0)
+
+#define CLKMGR_PERPLLGRP_EN_SDMMCCLK_MASK BIT(5)
+#define CLKMGR_PERPLLGRP_EMACCTL_EMAC0SELB_OFFSET 26
+#define CLKMGR_PERPLLGRP_EMACCTL_EMAC0SELB_MASK BIT(26)
+#define CLKMGR_PERPLLGRP_EMACCTL_EMAC1SELB_OFFSET 27
+#define CLKMGR_PERPLLGRP_EMACCTL_EMAC1SELB_MASK BIT(27)
+#define CLKMGR_PERPLLGRP_EMACCTL_EMAC2SELB_OFFSET 28
+#define CLKMGR_PERPLLGRP_EMACCTL_EMAC2SELB_MASK BIT(28)
+
+#define CLKMGR_ALT_EMACCTR_SRC_OFFSET 16
+#define CLKMGR_ALT_EMACCTR_SRC_MASK GENMASK(18, 16)
+#define CLKMGR_ALT_EMACCTR_CNT_OFFSET 0
+#define CLKMGR_ALT_EMACCTR_CNT_MASK GENMASK(10, 0)
+
+#define CLKMGR_ALT_EXTCNTRST_EMACACNTRST BIT(0)
+#define CLKMGR_ALT_EXTCNTRST_EMACBCNTRST BIT(1)
+#define CLKMGR_ALT_EXTCNTRST_EMACPTPCNTRST BIT(2)
+#define CLKMGR_ALT_EXTCNTRST_GPIODBCNTRST BIT(3)
+#define CLKMGR_ALT_EXTCNTRST_SDMMCCNTRST BIT(4)
+#define CLKMGR_ALT_EXTCNTRST_S2FUSER0CNTRST BIT(5)
+#define CLKMGR_ALT_EXTCNTRST_S2FUSER1CNTRST BIT(6)
+#define CLKMGR_ALT_EXTCNTRST_PSIREFCNTRST BIT(7)
+#define CLKMGR_ALT_EXTCNTRST_ALLCNTRST \
+ (CLKMGR_ALT_EXTCNTRST_EMACACNTRST | \
+ CLKMGR_ALT_EXTCNTRST_EMACBCNTRST | \
+ CLKMGR_ALT_EXTCNTRST_EMACPTPCNTRST | \
+ CLKMGR_ALT_EXTCNTRST_GPIODBCNTRST | \
+ CLKMGR_ALT_EXTCNTRST_SDMMCCNTRST | \
+ CLKMGR_ALT_EXTCNTRST_S2FUSER0CNTRST | \
+ CLKMGR_ALT_EXTCNTRST_S2FUSER1CNTRST | \
+ CLKMGR_ALT_EXTCNTRST_PSIREFCNTRST)
+#endif /* _CLK_AGILEX_ */