am335x: Add data structures for the clock module registers

To avoid having to read/write raw addresses with magic constants,
this change adds data structures which represent the clock module
registers and some constants for how the clock module is used
currently.

Change-Id: I955dae39bbdabccf048a086e706a48c58f620ad4
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: https://review.coreboot.org/3941
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

1 files changed, 234 insertions, 0 deletions

diff --git a/src/cpu/ti/am335x/clock.h b/src/cpu/ti/am335x/clock.h
new file mode 100644
index 0000000000..c1f1926852
--- /dev/null
+++ b/src/cpu/ti/am335x/clock.h
@@ -0,0 +1,234 @@
+/*
+ * Copyright (C) 2013 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __CPU_TI_AM335X_CLOCK_H__
+#define __CPU_TI_AM335X_CLOCK_H__
+
+#include <stdint.h>
+
+enum {
+	CM_ST_NO_SLEEP = 0x0,
+	CM_ST_SW_SLEEP = 0x1,
+	CM_ST_SW_WKUP = 0x2
+};
+
+enum {
+	CM_MODULEMODE_DISABLED = 0x0,
+	CM_MODULEMODE_ENABLED = 0x2
+};
+
+enum {
+	CM_FCLK_DIS = 0x0 << 18,
+	CM_FCLK_EN = 0x1 << 18
+};
+
+/* Clock module peripheral registers */
+struct am335x_cm_per_regs {
+	uint32_t l4ls_st;		// 0x0
+	uint32_t l3s_st;		// 0x4
+	uint8_t _rsv0[4];		// 0x8-0xb
+	uint32_t l3_st;			// 0xc
+	uint8_t _rsv1[4];		// 0x10-0x13
+	uint32_t cpgmac0;		// 0x14
+	uint32_t lcdc;			// 0x18
+	uint32_t usb0;			// 0x1c
+	uint8_t _rsv2[4];		// 0x20-0x23
+	uint32_t tptc0;			// 0x24
+	uint32_t emif;			// 0x28
+	uint32_t ocmcram;		// 0x2c
+	uint32_t gpmc;			// 0x30
+	uint32_t mcasp0;		// 0x34
+	uint32_t uart5;			// 0x38
+	uint32_t mmc0;			// 0x3c
+	uint32_t elm;			// 0x40
+	uint32_t i2c2;			// 0x44
+	uint32_t i2c1;			// 0x48
+	uint32_t spi0;			// 0x4c
+	uint32_t spi1;			// 0x50
+	uint8_t _rsv3[0xc];		// 0x54-0x5f
+	uint32_t l4ls;			// 0x60
+	uint8_t _rsv4[4];		// 0x64-0x67
+	uint32_t mcasp1;		// 0x68
+	uint32_t uart1;			// 0x6c
+	uint32_t uart2;			// 0x70
+	uint32_t uart3;			// 0x74
+	uint32_t uart4;			// 0x78
+	uint32_t timer7;		// 0x7c
+	uint32_t timer2;		// 0x80
+	uint32_t timer3;		// 0x84
+	uint32_t timer4;		// 0x88
+	uint8_t _rsv5[0x20];		// 0x90-0xab
+	uint32_t gpio1;			// 0xac
+	uint32_t gpio2;			// 0xb0
+	uint32_t gpio3;			// 0xb4
+	uint8_t _rsv6[4];		// 0xb8-0xbb
+	uint32_t tpcc;			// 0xbc
+	uint32_t dcan0;			// 0xc0
+	uint32_t dcan1;			// 0xc4
+	uint8_t _rsv7[4];		// 0xc8-0xcb
+	uint32_t epwmss1;		// 0xcc
+	uint8_t _rsv8[4];		// 0xd0-0xd3
+	uint32_t epwmss0;		// 0xd4
+	uint32_t epwmss2;		// 0xd8
+	uint32_t l3_instr;		// 0xdc
+	uint32_t l3;			// 0xe0
+	uint32_t ieee5000;		// 0xe4
+	uint32_t pru_icss;		// 0xe8
+	uint32_t timer5;		// 0xec
+	uint32_t timer6;		// 0xf0
+	uint32_t mmc1;			// 0xf4
+	uint32_t mmc2;			// 0xf8
+	uint32_t tptc1;			// 0xfc
+	uint32_t tptc2;			// 0x100
+	uint8_t _rsv9[8];		// 0x104-0x10b
+	uint32_t spinlock;		// 0x10c
+	uint32_t mailbox0;		// 0x110
+	uint8_t _rsv10[8];		// 0x114-0x11b
+	uint32_t l4hs_st;		// 0x11c
+	uint32_t l4hs;			// 0x120
+	uint8_t _rsv11[8];		// 0x124-0x12b
+	uint32_t ocpwp_l3_st;		// 0x12c
+	uint32_t ocpwp;			// 0x130
+	uint8_t _rsv12[0xb];		// 0x134-0x13f
+	uint32_t pru_icss_st;		// 0x140
+	uint32_t cpsw_st;		// 0x144
+	uint32_t lcdc_st;		// 0x148
+	uint32_t clkdiv32k;		// 0x14c
+	uint32_t clk_24mhz_st;		// 0x150
+} __attribute__((packed));
+static struct am335x_cm_per_regs * const am335x_cm_per = (void *)0x44e00000;
+
+/* Clock module wakeup registers */
+struct am335x_cm_wkup_regs {
+	uint32_t wkup_st;		// 0x0
+	uint32_t wkup_control;		// 0x4
+	uint32_t wkup_gpio0;		// 0x8
+	uint32_t wkup_l4wkup;		// 0xc
+	uint32_t wkup_timer0;		// 0x10
+	uint32_t wkup_debugss;		// 0x14
+	uint32_t l3_aon_st;		// 0x18
+	uint32_t autoidle_dpll_mpu;	// 0x1c
+	uint32_t idlest_dpll_mpu;	// 0x20
+	uint32_t ssc_deltamstep_dpll_mpu;	// 0x24
+	uint32_t ssc_modfreqdiv_dpll_mpu;	// 0x28
+	uint32_t clksel_dpll_mpu;	// 0x2c
+	uint32_t autoidle_dpll_ddr;	// 0x30
+	uint32_t idlest_dpll_ddr;	// 0x34
+	uint32_t ssc_deltamstep_dpll_ddr;	// 0x38
+	uint32_t ssc_modfreqdiv_dpll_ddr;	// 0x3c
+	uint32_t clksel_dpll_ddr;	// 0x40
+	uint32_t autoidle_dpll_disp;	// 0x44
+	uint32_t idlest_dpll_disp;	// 0x48
+	uint32_t ssc_deltamstep_dpll_disp;	// 0x4c
+	uint32_t ssc_modfreqdiv_dpll_disp;	// 0x50
+	uint32_t clksel_dpll_disp;	// 0x54
+	uint32_t autoidle_dpll_core;	// 0x58
+	uint32_t idlest_dpll_core;	// 0x5c
+	uint32_t ssc_deltamstep_dpll_core;	// 0x60
+	uint32_t ssc_modfreqdiv_dpll_core;	// 0x64
+	uint32_t clksel_dpll_core;	// 0x68
+	uint32_t autoidle_dpll_per;	// 0x6c
+	uint32_t idlest_dpll_per;	// 0x70
+	uint32_t ssc_deltamstep_dpll_per;	// 0x74
+	uint32_t ssc_modfreqdiv_dpll_per;	// 0x78
+	uint32_t clkdcoldo_dpll_per;	// 0x7c
+	uint32_t div_m4_dpll_core;	// 0x80
+	uint32_t div_m5_dpll_core;	// 0x84
+	uint32_t clkmode_dpll_mpu;	// 0x88
+	uint32_t clkmode_dpll_per;	// 0x8c
+	uint32_t clkmode_dpll_core;	// 0x90
+	uint32_t clkmode_dpll_ddr;	// 0x94
+	uint32_t clkmode_dpll_disp;	// 0x98
+	uint32_t clksel_dpll_periph;	// 0x9c
+	uint32_t div_m2_dpll_ddr;	// 0xa0
+	uint32_t div_m2_dpll_disp;	// 0xa4
+	uint32_t div_m2_dpll_mpu;	// 0xa8
+	uint32_t div_m2_dpll_per;	// 0xac
+	uint32_t wkup_wkup_m3;		// 0xb0
+	uint32_t wkup_uart0;		// 0xb4
+	uint32_t wkup_i2c0;		// 0xb8
+	uint32_t wkup_adc_tsc;		// 0xbc
+	uint32_t wkup_smartreflex0;	// 0xc0
+	uint32_t wkup_timer1;		// 0xc4
+	uint32_t wkup_smartreflex1;	// 0xc8
+	uint32_t l4_wkup_aon_st;	// 0xcc
+	uint8_t _rsv0[4];		// 0xd0-0xd3
+	uint32_t wkup_wdt1;		// 0xd4
+	uint32_t div_m6_dpll_core;	// 0xd8
+} __attribute__((packed));
+static struct am335x_cm_wkup_regs * const am335x_cm_wkup = (void *)0x44e00400;
+
+/* Clock module pll registers */
+struct am335x_cm_dpll_regs {
+	uint8_t _rsv0[4];		// 0x0-0x3
+	uint32_t clksel_timer7_clk;	// 0x4
+	uint32_t clksel_timer2_clk;	// 0x8
+	uint32_t clksel_timer3_clk;	// 0xc
+	uint32_t clksel_timer4_clk;	// 0x10
+	uint32_t cm_mac_clksel;		// 0x14
+	uint32_t clksel_timer5_clk;	// 0x18
+	uint32_t clksel_timer6_clk;	// 0x1c
+	uint32_t cm_cpts_rft_clksel;	// 0x20
+	uint8_t _rsv1[4];		// 0x24-0x27
+	uint32_t clksel_timer1ms_clk;	// 0x28
+	uint32_t clksel_gfx_fclk;	// 0x2c
+	uint32_t clksel_pru_icss_ocp_clk;	// 0x30
+	uint32_t clksel_lcdc_pixel_clk;	// 0x34
+	uint32_t clksel_wdt1_clk;	// 0x38
+	uint32_t clksel_gpio0_dbclk;	// 0x3c
+} __attribute__((packed));
+static struct am335x_cm_dpll_regs * const am335x_cm_dpll = (void *)0x44e00500;
+
+/* Clock module mpu registers */
+struct am335x_cm_mpu_regs {
+	uint32_t st;			// 0x0
+	uint32_t mpu;			// 0x4
+} __attribute__((packed));
+static struct am335x_cm_mpu_regs * const am335x_cm_mpu = (void *)0x44e00600;
+
+/* Clock module device registers */
+struct am335x_cm_device_regs {
+	uint32_t cm_clkout_ctrl;	// 0x0
+} __attribute__((packed));
+static struct am335x_cm_device_regs * const am335x_cm_device =
+		(void *)0x44e00700;
+
+/* Clock module RTC registers */
+struct am335x_cm_rtc_regs {
+	uint32_t rtc;			// 0x0
+	uint32_t st;			// 0x4
+} __attribute__((packed));
+static struct am335x_cm_rtc_regs * const am335x_cm_rtc = (void *)0x44e00800;
+
+/* Clock module graphics controller registers */
+struct am335x_cm_gfx_regs {
+	uint32_t l3_st;			// 0x0
+	uint32_t gfx;			// 0x4
+	uint8_t _rsv0[4];		// 0x8-0xb
+	uint32_t l4ls_gfx_st;		// 0xc
+	uint32_t mmucfg;		// 0x10
+	uint32_t mmudata;		// 0x14
+} __attribute__((packed));
+static struct am335x_cm_gfx_regs * const am335x_cm_gfx = (void *)0x44e00900;
+
+/* Clock module efuse registers */
+struct am335x_cm_cefuse_regs {
+	uint32_t st;			// 0x0
+	uint8_t _rsv0[0x1c];		// 0x4-0x1f
+	uint32_t cefuse;		// 0x20
+} __attribute__((packed));
+static struct am335x_cm_cefuse_regs * const am335x_cm_cefuse =
+		(void *)0x44e00a00;
+
+#endif	/* __CPU_TI_AM335X_CLOCK_H__ */