Add dpll and clock data for AM43xx
Signed-off-by: Lokesh Vutla lokeshvutla@ti.com --- arch/arm/cpu/armv7/am33xx/Makefile | 7 +- arch/arm/cpu/armv7/am33xx/clock_am43xx.c | 110 ++++++++++++++++++++++++++++++ board/ti/am43xx/board.c | 3 +- 3 files changed, 118 insertions(+), 2 deletions(-) create mode 100644 arch/arm/cpu/armv7/am33xx/clock_am43xx.c
diff --git a/arch/arm/cpu/armv7/am33xx/Makefile b/arch/arm/cpu/armv7/am33xx/Makefile index 7fd21af..bd8e752 100644 --- a/arch/arm/cpu/armv7/am33xx/Makefile +++ b/arch/arm/cpu/armv7/am33xx/Makefile @@ -10,7 +10,12 @@ LIB = $(obj)lib$(SOC).o
COBJS-$(CONFIG_AM33XX) += clock_am33xx.o COBJS-$(CONFIG_TI814X) += clock_ti814x.o -COBJS-$(CONFIG_AM33XX) += clock.o +COBJS-$(CONFIG_AM43XX) += clock_am43xx.o + +ifneq ($(CONFIG_AM43XX)$(CONFIG_AM33XX),) +COBJS += clock.o +endif + COBJS += sys_info.o COBJS += mem.o COBJS += ddr.o diff --git a/arch/arm/cpu/armv7/am33xx/clock_am43xx.c b/arch/arm/cpu/armv7/am33xx/clock_am43xx.c new file mode 100644 index 0000000..c4890f2 --- /dev/null +++ b/arch/arm/cpu/armv7/am33xx/clock_am43xx.c @@ -0,0 +1,110 @@ +/* + * clock_am43xx.c + * + * clocks for AM43XX based boards + * Derived from AM33XX based boards + * + * Copyright (C) 2013, Texas Instruments, Incorporated - http://www.ti.com/ + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/arch/cpu.h> +#include <asm/arch/clock.h> +#include <asm/arch/hardware.h> +#include <asm/arch/sys_proto.h> +#include <asm/io.h> + +struct cm_perpll *const cmper = (struct cm_perpll *)CM_PER; +struct cm_wkuppll *const cmwkup = (struct cm_wkuppll *)CM_WKUP; + +const struct dpll_regs dpll_mpu_regs = { + .cm_clkmode_dpll = CM_WKUP + 0x560, + .cm_idlest_dpll = CM_WKUP + 0x564, + .cm_clksel_dpll = CM_WKUP + 0x56c, + .cm_div_m2_dpll = CM_WKUP + 0x570, +}; + +const struct dpll_regs dpll_core_regs = { + .cm_clkmode_dpll = CM_WKUP + 0x520, + .cm_idlest_dpll = CM_WKUP + 0x524, + .cm_clksel_dpll = CM_WKUP + 0x52C, + .cm_div_m4_dpll = CM_WKUP + 0x538, + .cm_div_m5_dpll = CM_WKUP + 0x53C, + .cm_div_m6_dpll = CM_WKUP + 0x540, +}; + +const struct dpll_regs dpll_per_regs = { + .cm_clkmode_dpll = CM_WKUP + 0x5E0, + .cm_idlest_dpll = CM_WKUP + 0x5E4, + .cm_clksel_dpll = CM_WKUP + 0x5EC, + .cm_div_m2_dpll = CM_WKUP + 0x5F0, +}; + +const struct dpll_regs dpll_ddr_regs = { + .cm_clkmode_dpll = CM_WKUP + 0x5A0, + .cm_idlest_dpll = CM_WKUP + 0x5A4, + .cm_clksel_dpll = CM_WKUP + 0x5AC, + .cm_div_m2_dpll = CM_WKUP + 0x5B0, +}; + +const struct dpll_params dpll_mpu = { + -1, -1, -1, -1, -1, -1, -1}; +const struct dpll_params dpll_core = { + -1, -1, -1, -1, -1, -1, -1}; +const struct dpll_params dpll_per = { + -1, -1, -1, -1, -1, -1, -1}; + +void setup_clocks_for_console(void) +{ + /* Do not add any spl_debug prints in this function */ + clrsetbits_le32(&cmwkup->wkclkstctrl, CD_CLKCTRL_CLKTRCTRL_MASK, + CD_CLKCTRL_CLKTRCTRL_SW_WKUP << + CD_CLKCTRL_CLKTRCTRL_SHIFT); + + /* Enable UART0 */ + clrsetbits_le32(&cmwkup->wkup_uart0ctrl, + MODULE_CLKCTRL_MODULEMODE_MASK, + MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN << + MODULE_CLKCTRL_MODULEMODE_SHIFT); +} + +void enable_basic_clocks(void) +{ + u32 *const clk_domains[] = { + &cmper->l3clkstctrl, + &cmper->l3sclkstctrl, + &cmper->l4lsclkstctrl, + &cmwkup->wkclkstctrl, + &cmper->emifclkstctrl, + 0 + }; + + u32 *const clk_modules_explicit_en[] = { + &cmper->l3clkctrl, + &cmper->l4lsclkctrl, + &cmper->l4fwclkctrl, + &cmwkup->wkl4wkclkctrl, + &cmper->l3instrclkctrl, + &cmper->l4hsclkctrl, + &cmwkup->wkgpio0clkctrl, + &cmwkup->wkctrlclkctrl, + &cmper->timer2clkctrl, + &cmper->gpmcclkctrl, + &cmper->elmclkctrl, + &cmper->mmc0clkctrl, + &cmper->mmc1clkctrl, + &cmwkup->wkup_i2c0ctrl, + &cmper->gpio1clkctrl, + &cmper->gpio2clkctrl, + &cmper->gpio3clkctrl, + &cmper->i2c1clkctrl, + &cmper->emiffwclkctrl, + &cmper->emifclkctrl, + &cmper->otfaemifclkctrl, + 0 + }; + + do_enable_clocks(clk_domains, clk_modules_explicit_en, 1); +} diff --git a/board/ti/am43xx/board.c b/board/ti/am43xx/board.c index f5b9100..51b2576 100644 --- a/board/ti/am43xx/board.c +++ b/board/ti/am43xx/board.c @@ -10,6 +10,7 @@
#include <common.h> #include <spl.h> +#include <asm/arch/clock.h> #include <asm/arch/sys_proto.h> #include <asm/arch/mux.h> #include "board.h" @@ -19,7 +20,7 @@ DECLARE_GLOBAL_DATA_PTR; #ifdef CONFIG_SPL_BUILD
const struct dpll_params dpll_ddr = { - 266, OSC-1, 1, -1, -1, -1, -1}; + -1, -1, -1, -1, -1, -1, -1};
const struct dpll_params *get_dpll_ddr_params(void) {