diff options
author | Tom Rini <trini@ti.com> | 2013-08-18 14:14:34 -0400 |
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committer | Tom Rini <trini@ti.com> | 2013-08-18 14:14:34 -0400 |
commit | e20cc2ca15b5b0644f51b6e58d530d70acd2bc00 (patch) | |
tree | f85a22536682ef54e77b1ba95cf0b71d00644632 /arch/arm/cpu/armv7/am33xx | |
parent | f21876174364391757e743cb8673d3fc5fce7ac7 (diff) | |
parent | 9ed887caecb9ecb0c68773a1870d143b9f28d3da (diff) | |
download | u-boot-imx-e20cc2ca15b5b0644f51b6e58d530d70acd2bc00.zip u-boot-imx-e20cc2ca15b5b0644f51b6e58d530d70acd2bc00.tar.gz u-boot-imx-e20cc2ca15b5b0644f51b6e58d530d70acd2bc00.tar.bz2 |
Merge branch 'master' of git://88.191.163.10/u-boot-arm
Fixup an easy conflict over adding the clk_get prototype and USB_OTG
defines for am33xx having moved.
Conflicts:
arch/arm/include/asm/arch-am33xx/hardware.h
Signed-off-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'arch/arm/cpu/armv7/am33xx')
-rw-r--r-- | arch/arm/cpu/armv7/am33xx/Makefile | 7 | ||||
-rw-r--r-- | arch/arm/cpu/armv7/am33xx/board.c | 70 | ||||
-rw-r--r-- | arch/arm/cpu/armv7/am33xx/clock.c | 171 | ||||
-rw-r--r-- | arch/arm/cpu/armv7/am33xx/clock_am33xx.c | 495 | ||||
-rw-r--r-- | arch/arm/cpu/armv7/am33xx/clock_am43xx.c | 110 | ||||
-rw-r--r-- | arch/arm/cpu/armv7/am33xx/clock_ti814x.c | 120 | ||||
-rw-r--r-- | arch/arm/cpu/armv7/am33xx/clock_ti816x.c | 445 | ||||
-rw-r--r-- | arch/arm/cpu/armv7/am33xx/emif4.c | 17 | ||||
-rw-r--r-- | arch/arm/cpu/armv7/am33xx/mem.c | 8 |
9 files changed, 942 insertions, 501 deletions
diff --git a/arch/arm/cpu/armv7/am33xx/Makefile b/arch/arm/cpu/armv7/am33xx/Makefile index dbd1ec3..f6a297c 100644 --- a/arch/arm/cpu/armv7/am33xx/Makefile +++ b/arch/arm/cpu/armv7/am33xx/Makefile @@ -10,6 +10,13 @@ LIB = $(obj)lib$(SOC).o COBJS-$(CONFIG_AM33XX) += clock_am33xx.o COBJS-$(CONFIG_TI814X) += clock_ti814x.o +COBJS-$(CONFIG_AM43XX) += clock_am43xx.o + +ifneq ($(CONFIG_AM43XX)$(CONFIG_AM33XX),) +COBJS += clock.o +endif + +COBJS-$(CONFIG_TI816X) += clock_ti816x.o COBJS += sys_info.o COBJS += mem.o COBJS += ddr.o diff --git a/arch/arm/cpu/armv7/am33xx/board.c b/arch/arm/cpu/armv7/am33xx/board.c index 07ab91c..2ea3d69 100644 --- a/arch/arm/cpu/armv7/am33xx/board.c +++ b/arch/arm/cpu/armv7/am33xx/board.c @@ -56,12 +56,6 @@ int cpu_mmc_init(bd_t *bis) } #endif -void setup_clocks_for_console(void) -{ - /* Not yet implemented */ - return; -} - /* AM33XX has two MUSB controllers which can be host or gadget */ #if (defined(CONFIG_MUSB_GADGET) || defined(CONFIG_MUSB_HOST)) && \ (defined(CONFIG_AM335X_USB0) || defined(CONFIG_AM335X_USB1)) @@ -142,8 +136,8 @@ int arch_misc_init(void) return 0; } -#ifdef CONFIG_SPL_BUILD -void rtc32k_enable(void) +#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT) +static void rtc32k_enable(void) { struct rtc_regs *rtc = (struct rtc_regs *)RTC_BASE; @@ -159,11 +153,7 @@ void rtc32k_enable(void) writel((1 << 3) | (1 << 6), &rtc->osc); } -#define UART_RESET (0x1 << 1) -#define UART_CLK_RUNNING_MASK 0x1 -#define UART_SMART_IDLE_EN (0x1 << 0x3) - -void uart_soft_reset(void) +static void uart_soft_reset(void) { struct uart_sys *uart_base = (struct uart_sys *)DEFAULT_UART_BASE; u32 regval; @@ -180,4 +170,58 @@ void uart_soft_reset(void) regval |= UART_SMART_IDLE_EN; writel(regval, &uart_base->uartsyscfg); } + +static void watchdog_disable(void) +{ + struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE; + + writel(0xAAAA, &wdtimer->wdtwspr); + while (readl(&wdtimer->wdtwwps) != 0x0) + ; + writel(0x5555, &wdtimer->wdtwspr); + while (readl(&wdtimer->wdtwwps) != 0x0) + ; +} +#endif + +void s_init(void) +{ + /* + * The ROM will only have set up sufficient pinmux to allow for the + * first 4KiB NOR to be read, we must finish doing what we know of + * the NOR mux in this space in order to continue. + */ +#ifdef CONFIG_NOR_BOOT + enable_norboot_pin_mux(); +#endif + /* + * Save the boot parameters passed from romcode. + * We cannot delay the saving further than this, + * to prevent overwrites. + */ +#ifdef CONFIG_SPL_BUILD + save_omap_boot_params(); +#endif +#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT) + watchdog_disable(); + timer_init(); + set_uart_mux_conf(); + setup_clocks_for_console(); + uart_soft_reset(); #endif +#ifdef CONFIG_NOR_BOOT + gd->baudrate = CONFIG_BAUDRATE; + serial_init(); + gd->have_console = 1; +#else + gd = &gdata; + preloader_console_init(); +#endif +#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT) + prcm_init(); + set_mux_conf_regs(); + /* Enable RTC32K clock */ + rtc32k_enable(); + sdram_init(); +#endif +} diff --git a/arch/arm/cpu/armv7/am33xx/clock.c b/arch/arm/cpu/armv7/am33xx/clock.c new file mode 100644 index 0000000..8e5f3c6 --- /dev/null +++ b/arch/arm/cpu/armv7/am33xx/clock.c @@ -0,0 +1,171 @@ +/* + * clock.c + * + * Clock initialization for AM33XX boards. + * Derived from OMAP4 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> + +static void setup_post_dividers(const struct dpll_regs *dpll_regs, + const struct dpll_params *params) +{ + /* Setup post-dividers */ + if (params->m2 >= 0) + writel(params->m2, dpll_regs->cm_div_m2_dpll); + if (params->m3 >= 0) + writel(params->m3, dpll_regs->cm_div_m3_dpll); + if (params->m4 >= 0) + writel(params->m4, dpll_regs->cm_div_m4_dpll); + if (params->m5 >= 0) + writel(params->m5, dpll_regs->cm_div_m5_dpll); + if (params->m6 >= 0) + writel(params->m6, dpll_regs->cm_div_m6_dpll); +} + +static inline void do_lock_dpll(const struct dpll_regs *dpll_regs) +{ + clrsetbits_le32(dpll_regs->cm_clkmode_dpll, + CM_CLKMODE_DPLL_DPLL_EN_MASK, + DPLL_EN_LOCK << CM_CLKMODE_DPLL_EN_SHIFT); +} + +static inline void wait_for_lock(const struct dpll_regs *dpll_regs) +{ + if (!wait_on_value(ST_DPLL_CLK_MASK, ST_DPLL_CLK_MASK, + (void *)dpll_regs->cm_idlest_dpll, LDELAY)) { + printf("DPLL locking failed for 0x%x\n", + dpll_regs->cm_clkmode_dpll); + hang(); + } +} + +static inline void do_bypass_dpll(const struct dpll_regs *dpll_regs) +{ + clrsetbits_le32(dpll_regs->cm_clkmode_dpll, + CM_CLKMODE_DPLL_DPLL_EN_MASK, + DPLL_EN_MN_BYPASS << CM_CLKMODE_DPLL_EN_SHIFT); +} + +static inline void wait_for_bypass(const struct dpll_regs *dpll_regs) +{ + if (!wait_on_value(ST_DPLL_CLK_MASK, 0, + (void *)dpll_regs->cm_idlest_dpll, LDELAY)) { + printf("Bypassing DPLL failed 0x%x\n", + dpll_regs->cm_clkmode_dpll); + } +} + +static void bypass_dpll(const struct dpll_regs *dpll_regs) +{ + do_bypass_dpll(dpll_regs); + wait_for_bypass(dpll_regs); +} + +void do_setup_dpll(const struct dpll_regs *dpll_regs, + const struct dpll_params *params) +{ + u32 temp; + + if (!params) + return; + + temp = readl(dpll_regs->cm_clksel_dpll); + + bypass_dpll(dpll_regs); + + /* Set M & N */ + temp &= ~CM_CLKSEL_DPLL_M_MASK; + temp |= (params->m << CM_CLKSEL_DPLL_M_SHIFT) & CM_CLKSEL_DPLL_M_MASK; + + temp &= ~CM_CLKSEL_DPLL_N_MASK; + temp |= (params->n << CM_CLKSEL_DPLL_N_SHIFT) & CM_CLKSEL_DPLL_N_MASK; + + writel(temp, dpll_regs->cm_clksel_dpll); + + setup_post_dividers(dpll_regs, params); + + /* Wait till the DPLL locks */ + do_lock_dpll(dpll_regs); + wait_for_lock(dpll_regs); +} + +static void setup_dplls(void) +{ + const struct dpll_params *params; + do_setup_dpll(&dpll_core_regs, &dpll_core); + do_setup_dpll(&dpll_mpu_regs, &dpll_mpu); + do_setup_dpll(&dpll_per_regs, &dpll_per); + writel(0x300, &cmwkup->clkdcoldodpllper); + + params = get_dpll_ddr_params(); + do_setup_dpll(&dpll_ddr_regs, params); +} + +static inline void wait_for_clk_enable(u32 *clkctrl_addr) +{ + u32 clkctrl, idlest = MODULE_CLKCTRL_IDLEST_DISABLED; + u32 bound = LDELAY; + + while ((idlest == MODULE_CLKCTRL_IDLEST_DISABLED) || + (idlest == MODULE_CLKCTRL_IDLEST_TRANSITIONING)) { + clkctrl = readl(clkctrl_addr); + idlest = (clkctrl & MODULE_CLKCTRL_IDLEST_MASK) >> + MODULE_CLKCTRL_IDLEST_SHIFT; + if (--bound == 0) { + printf("Clock enable failed for 0x%p idlest 0x%x\n", + clkctrl_addr, clkctrl); + return; + } + } +} + +static inline void enable_clock_module(u32 *const clkctrl_addr, u32 enable_mode, + u32 wait_for_enable) +{ + clrsetbits_le32(clkctrl_addr, MODULE_CLKCTRL_MODULEMODE_MASK, + enable_mode << MODULE_CLKCTRL_MODULEMODE_SHIFT); + debug("Enable clock module - %p\n", clkctrl_addr); + if (wait_for_enable) + wait_for_clk_enable(clkctrl_addr); +} + +static inline void enable_clock_domain(u32 *const clkctrl_reg, u32 enable_mode) +{ + clrsetbits_le32(clkctrl_reg, CD_CLKCTRL_CLKTRCTRL_MASK, + enable_mode << CD_CLKCTRL_CLKTRCTRL_SHIFT); + debug("Enable clock domain - %p\n", clkctrl_reg); +} + +void do_enable_clocks(u32 *const *clk_domains, + u32 *const *clk_modules_explicit_en, u8 wait_for_enable) +{ + u32 i, max = 100; + + /* Put the clock domains in SW_WKUP mode */ + for (i = 0; (i < max) && clk_domains[i]; i++) { + enable_clock_domain(clk_domains[i], + CD_CLKCTRL_CLKTRCTRL_SW_WKUP); + } + + /* Clock modules that need to be put in SW_EXPLICIT_EN mode */ + for (i = 0; (i < max) && clk_modules_explicit_en[i]; i++) { + enable_clock_module(clk_modules_explicit_en[i], + MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN, + wait_for_enable); + }; +} + +void prcm_init() +{ + enable_basic_clocks(); + setup_dplls(); +} diff --git a/arch/arm/cpu/armv7/am33xx/clock_am33xx.c b/arch/arm/cpu/armv7/am33xx/clock_am33xx.c index fb3fb43..e5f287b 100644 --- a/arch/arm/cpu/armv7/am33xx/clock_am33xx.c +++ b/arch/arm/cpu/armv7/am33xx/clock_am33xx.c @@ -14,392 +14,129 @@ #include <asm/arch/hardware.h> #include <asm/io.h> -#define PRCM_MOD_EN 0x2 -#define PRCM_FORCE_WAKEUP 0x2 -#define PRCM_FUNCTL 0x0 - -#define PRCM_EMIF_CLK_ACTIVITY BIT(2) -#define PRCM_L3_GCLK_ACTIVITY BIT(4) - -#define PLL_BYPASS_MODE 0x4 -#define ST_MN_BYPASS 0x00000100 -#define ST_DPLL_CLK 0x00000001 -#define CLK_SEL_MASK 0x7ffff -#define CLK_DIV_MASK 0x1f -#define CLK_DIV2_MASK 0x7f -#define CLK_SEL_SHIFT 0x8 -#define CLK_MODE_SEL 0x7 -#define CLK_MODE_MASK 0xfffffff8 -#define CLK_DIV_SEL 0xFFFFFFE0 -#define CPGMAC0_IDLE 0x30000 -#define DPLL_CLKDCOLDO_GATE_CTRL 0x300 - #define OSC (V_OSCK/1000000) -#define MPUPLL_M CONFIG_SYS_MPUCLK -#define MPUPLL_N (OSC-1) -#define MPUPLL_M2 1 - -/* Core PLL Fdll = 1 GHZ, */ -#define COREPLL_M 1000 -#define COREPLL_N (OSC-1) - -#define COREPLL_M4 10 /* CORE_CLKOUTM4 = 200 MHZ */ -#define COREPLL_M5 8 /* CORE_CLKOUTM5 = 250 MHZ */ -#define COREPLL_M6 4 /* CORE_CLKOUTM6 = 500 MHZ */ - -/* - * USB PHY clock is 960 MHZ. Since, this comes directly from Fdll, Fdll - * frequency needs to be set to 960 MHZ. Hence, - * For clkout = 192 MHZ, Fdll = 960 MHZ, divider values are given below - */ -#define PERPLL_M 960 -#define PERPLL_N (OSC-1) -#define PERPLL_M2 5 - -/* DDR Freq is 266 MHZ for now */ -/* Set Fdll = 400 MHZ , Fdll = M * 2 * CLKINP/ N + 1; clkout = Fdll /(2 * M2) */ -#define DDRPLL_M 266 -#define DDRPLL_N (OSC-1) -#define DDRPLL_M2 1 - -const struct cm_perpll *cmper = (struct cm_perpll *)CM_PER; -const struct cm_wkuppll *cmwkup = (struct cm_wkuppll *)CM_WKUP; -const struct cm_dpll *cmdpll = (struct cm_dpll *)CM_DPLL; -const struct cm_rtc *cmrtc = (struct cm_rtc *)CM_RTC; - -static void enable_interface_clocks(void) +struct cm_perpll *const cmper = (struct cm_perpll *)CM_PER; +struct cm_wkuppll *const cmwkup = (struct cm_wkuppll *)CM_WKUP; +struct cm_dpll *const cmdpll = (struct cm_dpll *)CM_DPLL; +struct cm_rtc *const cmrtc = (struct cm_rtc *)CM_RTC; + +const struct dpll_regs dpll_mpu_regs = { + .cm_clkmode_dpll = CM_WKUP + 0x88, + .cm_idlest_dpll = CM_WKUP + 0x20, + .cm_clksel_dpll = CM_WKUP + 0x2C, + .cm_div_m2_dpll = CM_WKUP + 0xA8, +}; + +const struct dpll_regs dpll_core_regs = { + .cm_clkmode_dpll = CM_WKUP + 0x90, + .cm_idlest_dpll = CM_WKUP + 0x5C, + .cm_clksel_dpll = CM_WKUP + 0x68, + .cm_div_m4_dpll = CM_WKUP + 0x80, + .cm_div_m5_dpll = CM_WKUP + 0x84, + .cm_div_m6_dpll = CM_WKUP + 0xD8, +}; + +const struct dpll_regs dpll_per_regs = { + .cm_clkmode_dpll = CM_WKUP + 0x8C, + .cm_idlest_dpll = CM_WKUP + 0x70, + .cm_clksel_dpll = CM_WKUP + 0x9C, + .cm_div_m2_dpll = CM_WKUP + 0xAC, +}; + +const struct dpll_regs dpll_ddr_regs = { + .cm_clkmode_dpll = CM_WKUP + 0x94, + .cm_idlest_dpll = CM_WKUP + 0x34, + .cm_clksel_dpll = CM_WKUP + 0x40, + .cm_div_m2_dpll = CM_WKUP + 0xA0, +}; + +const struct dpll_params dpll_mpu = { + CONFIG_SYS_MPUCLK, OSC-1, 1, -1, -1, -1, -1}; +const struct dpll_params dpll_core = { + 1000, OSC-1, -1, -1, 10, 8, 4}; +const struct dpll_params dpll_per = { + 960, OSC-1, 5, -1, -1, -1, -1}; + +void setup_clocks_for_console(void) { - /* Enable all the Interconnect Modules */ - writel(PRCM_MOD_EN, &cmper->l3clkctrl); - while (readl(&cmper->l3clkctrl) != PRCM_MOD_EN) - ; - - writel(PRCM_MOD_EN, &cmper->l4lsclkctrl); - while (readl(&cmper->l4lsclkctrl) != PRCM_MOD_EN) - ; - - writel(PRCM_MOD_EN, &cmper->l4fwclkctrl); - while (readl(&cmper->l4fwclkctrl) != PRCM_MOD_EN) - ; - - writel(PRCM_MOD_EN, &cmwkup->wkl4wkclkctrl); - while (readl(&cmwkup->wkl4wkclkctrl) != PRCM_MOD_EN) - ; - - writel(PRCM_MOD_EN, &cmper->l3instrclkctrl); - while (readl(&cmper->l3instrclkctrl) != PRCM_MOD_EN) - ; - - writel(PRCM_MOD_EN, &cmper->l4hsclkctrl); - while (readl(&cmper->l4hsclkctrl) != PRCM_MOD_EN) - ; - - writel(PRCM_MOD_EN, &cmwkup->wkgpio0clkctrl); - while (readl(&cmwkup->wkgpio0clkctrl) != PRCM_MOD_EN) - ; -} - -/* - * Force power domain wake up transition - * Ensure that the corresponding interface clock is active before - * using the peripheral - */ -static void power_domain_wkup_transition(void) -{ - writel(PRCM_FORCE_WAKEUP, &cmper->l3clkstctrl); - writel(PRCM_FORCE_WAKEUP, &cmper->l4lsclkstctrl); - writel(PRCM_FORCE_WAKEUP, &cmwkup->wkclkstctrl); - writel(PRCM_FORCE_WAKEUP, &cmper->l4fwclkstctrl); - writel(PRCM_FORCE_WAKEUP, &cmper->l3sclkstctrl); + clrsetbits_le32(&cmwkup->wkclkstctrl, CD_CLKCTRL_CLKTRCTRL_MASK, + CD_CLKCTRL_CLKTRCTRL_SW_WKUP << + CD_CLKCTRL_CLKTRCTRL_SHIFT); + + clrsetbits_le32(&cmper->l4hsclkstctrl, CD_CLKCTRL_CLKTRCTRL_MASK, + CD_CLKCTRL_CLKTRCTRL_SW_WKUP << + CD_CLKCTRL_CLKTRCTRL_SHIFT); + + clrsetbits_le32(&cmwkup->wkup_uart0ctrl, + MODULE_CLKCTRL_MODULEMODE_MASK, + MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN << + MODULE_CLKCTRL_MODULEMODE_SHIFT); + clrsetbits_le32(&cmper->uart1clkctrl, + MODULE_CLKCTRL_MODULEMODE_MASK, + MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN << + MODULE_CLKCTRL_MODULEMODE_SHIFT); + clrsetbits_le32(&cmper->uart2clkctrl, + MODULE_CLKCTRL_MODULEMODE_MASK, + MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN << + MODULE_CLKCTRL_MODULEMODE_SHIFT); + clrsetbits_le32(&cmper->uart3clkctrl, + MODULE_CLKCTRL_MODULEMODE_MASK, + MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN << + MODULE_CLKCTRL_MODULEMODE_SHIFT); + clrsetbits_le32(&cmper->uart4clkctrl, + MODULE_CLKCTRL_MODULEMODE_MASK, + MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN << + MODULE_CLKCTRL_MODULEMODE_SHIFT); + clrsetbits_le32(&cmper->uart5clkctrl, + MODULE_CLKCTRL_MODULEMODE_MASK, + MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN << + MODULE_CLKCTRL_MODULEMODE_SHIFT); } -/* - * Enable the peripheral clock for required peripherals - */ -static void enable_per_clocks(void) +void enable_basic_clocks(void) { - /* Enable the control module though RBL would have done it*/ - writel(PRCM_MOD_EN, &cmwkup->wkctrlclkctrl); - while (readl(&cmwkup->wkctrlclkctrl) != PRCM_MOD_EN) - ; - - /* Enable the module clock */ - writel(PRCM_MOD_EN, &cmper->timer2clkctrl); - while (readl(&cmper->timer2clkctrl) != PRCM_MOD_EN) - ; + u32 *const clk_domains[] = { + &cmper->l3clkstctrl, + &cmper->l4fwclkstctrl, + &cmper->l3sclkstctrl, + &cmper->l4lsclkstctrl, + &cmwkup->wkclkstctrl, + &cmper->emiffwclkctrl, + &cmrtc->clkstctrl, + 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->cpgmac0clkctrl, + &cmper->spi0clkctrl, + &cmrtc->rtcclkctrl, + &cmper->usb0clkctrl, + &cmper->emiffwclkctrl, + &cmper->emifclkctrl, + 0 + }; + + do_enable_clocks(clk_domains, clk_modules_explicit_en, 1); /* Select the Master osc 24 MHZ as Timer2 clock source */ writel(0x1, &cmdpll->clktimer2clk); - - /* UART0 */ - writel(PRCM_MOD_EN, &cmwkup->wkup_uart0ctrl); - while (readl(&cmwkup->wkup_uart0ctrl) != PRCM_MOD_EN) - ; - - /* UART1 */ -#ifdef CONFIG_SERIAL2 - writel(PRCM_MOD_EN, &cmper->uart1clkctrl); - while (readl(&cmper->uart1clkctrl) != PRCM_MOD_EN) - ; -#endif /* CONFIG_SERIAL2 */ - - /* UART2 */ -#ifdef CONFIG_SERIAL3 - writel(PRCM_MOD_EN, &cmper->uart2clkctrl); - while (readl(&cmper->uart2clkctrl) != PRCM_MOD_EN) - ; -#endif /* CONFIG_SERIAL3 */ - - /* UART3 */ -#ifdef CONFIG_SERIAL4 - writel(PRCM_MOD_EN, &cmper->uart3clkctrl); - while (readl(&cmper->uart3clkctrl) != PRCM_MOD_EN) - ; -#endif /* CONFIG_SERIAL4 */ - - /* UART4 */ -#ifdef CONFIG_SERIAL5 - writel(PRCM_MOD_EN, &cmper->uart4clkctrl); - while (readl(&cmper->uart4clkctrl) != PRCM_MOD_EN) - ; -#endif /* CONFIG_SERIAL5 */ - - /* UART5 */ -#ifdef CONFIG_SERIAL6 - writel(PRCM_MOD_EN, &cmper->uart5clkctrl); - while (readl(&cmper->uart5clkctrl) != PRCM_MOD_EN) - ; -#endif /* CONFIG_SERIAL6 */ - - /* GPMC */ - writel(PRCM_MOD_EN, &cmper->gpmcclkctrl); - while (readl(&cmper->gpmcclkctrl) != PRCM_MOD_EN) - ; - - /* ELM */ - writel(PRCM_MOD_EN, &cmper->elmclkctrl); - while (readl(&cmper->elmclkctrl) != PRCM_MOD_EN) - ; - - /* MMC0*/ - writel(PRCM_MOD_EN, &cmper->mmc0clkctrl); - while (readl(&cmper->mmc0clkctrl) != PRCM_MOD_EN) - ; - - /* MMC1 */ - writel(PRCM_MOD_EN, &cmper->mmc1clkctrl); - while (readl(&cmper->mmc1clkctrl) != PRCM_MOD_EN) - ; - - /* i2c0 */ - writel(PRCM_MOD_EN, &cmwkup->wkup_i2c0ctrl); - while (readl(&cmwkup->wkup_i2c0ctrl) != PRCM_MOD_EN) - ; - - /* gpio1 module */ - writel(PRCM_MOD_EN, &cmper->gpio1clkctrl); - while (readl(&cmper->gpio1clkctrl) != PRCM_MOD_EN) - ; - - /* gpio2 module */ - writel(PRCM_MOD_EN, &cmper->gpio2clkctrl); - while (readl(&cmper->gpio2clkctrl) != PRCM_MOD_EN) - ; - - /* gpio3 module */ - writel(PRCM_MOD_EN, &cmper->gpio3clkctrl); - while (readl(&cmper->gpio3clkctrl) != PRCM_MOD_EN) - ; - - /* i2c1 */ - writel(PRCM_MOD_EN, &cmper->i2c1clkctrl); - while (readl(&cmper->i2c1clkctrl) != PRCM_MOD_EN) - ; - - /* Ethernet */ - writel(PRCM_MOD_EN, &cmper->cpgmac0clkctrl); - while ((readl(&cmper->cpgmac0clkctrl) & CPGMAC0_IDLE) != PRCM_FUNCTL) - ; - - /* spi0 */ - writel(PRCM_MOD_EN, &cmper->spi0clkctrl); - while (readl(&cmper->spi0clkctrl) != PRCM_MOD_EN) - ; - - /* RTC */ - writel(PRCM_MOD_EN, &cmrtc->rtcclkctrl); - while (readl(&cmrtc->rtcclkctrl) != PRCM_MOD_EN) - ; - - /* MUSB */ - writel(PRCM_MOD_EN, &cmper->usb0clkctrl); - while (readl(&cmper->usb0clkctrl) != PRCM_MOD_EN) - ; -} - -void mpu_pll_config_val(int mpull_m) -{ - u32 clkmode, clksel, div_m2; - - clkmode = readl(&cmwkup->clkmoddpllmpu); - clksel = readl(&cmwkup->clkseldpllmpu); - div_m2 = readl(&cmwkup->divm2dpllmpu); - - /* Set the PLL to bypass Mode */ - writel(PLL_BYPASS_MODE, &cmwkup->clkmoddpllmpu); - while (readl(&cmwkup->idlestdpllmpu) != ST_MN_BYPASS) - ; - - clksel = clksel & (~CLK_SEL_MASK); - clksel = clksel | ((mpull_m << CLK_SEL_SHIFT) | MPUPLL_N); - writel(clksel, &cmwkup->clkseldpllmpu); - - div_m2 = div_m2 & ~CLK_DIV_MASK; - div_m2 = div_m2 | MPUPLL_M2; - writel(div_m2, &cmwkup->divm2dpllmpu); - - clkmode = clkmode | CLK_MODE_SEL; - writel(clkmode, &cmwkup->clkmoddpllmpu); - - while (readl(&cmwkup->idlestdpllmpu) != ST_DPLL_CLK) - ; -} - -static void mpu_pll_config(void) -{ - mpu_pll_config_val(CONFIG_SYS_MPUCLK); -} - -static void core_pll_config(void) -{ - u32 clkmode, clksel, div_m4, div_m5, div_m6; - - clkmode = readl(&cmwkup->clkmoddpllcore); - clksel = readl(&cmwkup->clkseldpllcore); - div_m4 = readl(&cmwkup->divm4dpllcore); - div_m5 = readl(&cmwkup->divm5dpllcore); - div_m6 = readl(&cmwkup->divm6dpllcore); - - /* Set the PLL to bypass Mode */ - writel(PLL_BYPASS_MODE, &cmwkup->clkmoddpllcore); - - while (readl(&cmwkup->idlestdpllcore) != ST_MN_BYPASS) - ; - - clksel = clksel & (~CLK_SEL_MASK); - clksel = clksel | ((COREPLL_M << CLK_SEL_SHIFT) | COREPLL_N); - writel(clksel, &cmwkup->clkseldpllcore); - - div_m4 = div_m4 & ~CLK_DIV_MASK; - div_m4 = div_m4 | COREPLL_M4; - writel(div_m4, &cmwkup->divm4dpllcore); - - div_m5 = div_m5 & ~CLK_DIV_MASK; - div_m5 = div_m5 | COREPLL_M5; - writel(div_m5, &cmwkup->divm5dpllcore); - - div_m6 = div_m6 & ~CLK_DIV_MASK; - div_m6 = div_m6 | COREPLL_M6; - writel(div_m6, &cmwkup->divm6dpllcore); - - clkmode = clkmode | CLK_MODE_SEL; - writel(clkmode, &cmwkup->clkmoddpllcore); - - while (readl(&cmwkup->idlestdpllcore) != ST_DPLL_CLK) - ; -} - -static void per_pll_config(void) -{ - u32 clkmode, clksel, div_m2; - - clkmode = readl(&cmwkup->clkmoddpllper); - clksel = readl(&cmwkup->clkseldpllper); - div_m2 = readl(&cmwkup->divm2dpllper); - - /* Set the PLL to bypass Mode */ - writel(PLL_BYPASS_MODE, &cmwkup->clkmoddpllper); - - while (readl(&cmwkup->idlestdpllper) != ST_MN_BYPASS) - ; - - clksel = clksel & (~CLK_SEL_MASK); - clksel = clksel | ((PERPLL_M << CLK_SEL_SHIFT) | PERPLL_N); - writel(clksel, &cmwkup->clkseldpllper); - - div_m2 = div_m2 & ~CLK_DIV2_MASK; - div_m2 = div_m2 | PERPLL_M2; - writel(div_m2, &cmwkup->divm2dpllper); - - clkmode = clkmode | CLK_MODE_SEL; - writel(clkmode, &cmwkup->clkmoddpllper); - - while (readl(&cmwkup->idlestdpllper) != ST_DPLL_CLK) - ; - - writel(DPLL_CLKDCOLDO_GATE_CTRL, &cmwkup->clkdcoldodpllper); -} - -void ddr_pll_config(unsigned int ddrpll_m) -{ - u32 clkmode, clksel, div_m2; - - clkmode = readl(&cmwkup->clkmoddpllddr); - clksel = readl(&cmwkup->clkseldpllddr); - div_m2 = readl(&cmwkup->divm2dpllddr); - - /* Set the PLL to bypass Mode */ - clkmode = (clkmode & CLK_MODE_MASK) | PLL_BYPASS_MODE; - writel(clkmode, &cmwkup->clkmoddpllddr); - - /* Wait till bypass mode is enabled */ - while ((readl(&cmwkup->idlestdpllddr) & ST_MN_BYPASS) - != ST_MN_BYPASS) - ; - - clksel = clksel & (~CLK_SEL_MASK); - clksel = clksel | ((ddrpll_m << CLK_SEL_SHIFT) | DDRPLL_N); - writel(clksel, &cmwkup->clkseldpllddr); - - div_m2 = div_m2 & CLK_DIV_SEL; - div_m2 = div_m2 | DDRPLL_M2; - writel(div_m2, &cmwkup->divm2dpllddr); - - clkmode = (clkmode & CLK_MODE_MASK) | CLK_MODE_SEL; - writel(clkmode, &cmwkup->clkmoddpllddr); - - /* Wait till dpll is locked */ - while ((readl(&cmwkup->idlestdpllddr) & ST_DPLL_CLK) != ST_DPLL_CLK) - ; -} - -void enable_emif_clocks(void) -{ - /* Enable the EMIF_FW Functional clock */ - writel(PRCM_MOD_EN, &cmper->emiffwclkctrl); - /* Enable EMIF0 Clock */ - writel(PRCM_MOD_EN, &cmper->emifclkctrl); - /* Poll if module is functional */ - while ((readl(&cmper->emifclkctrl)) != PRCM_MOD_EN) - ; -} - -/* - * Configure the PLL/PRCM for necessary peripherals - */ -void pll_init() -{ - mpu_pll_config(); - core_pll_config(); - per_pll_config(); - - /* Enable the required interconnect clocks */ - enable_interface_clocks(); - - /* Power domain wake up transition */ - power_domain_wkup_transition(); - - /* Enable the required peripherals */ - enable_per_clocks(); } 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/arch/arm/cpu/armv7/am33xx/clock_ti814x.c b/arch/arm/cpu/armv7/am33xx/clock_ti814x.c index 658772b..ef14f47 100644 --- a/arch/arm/cpu/armv7/am33xx/clock_ti814x.c +++ b/arch/arm/cpu/armv7/am33xx/clock_ti814x.c @@ -100,103 +100,8 @@ struct ad_pll { #define OSC_SRC_CTRL (PLL_SUBSYS_BASE + 0x2C0) -/* PRCM */ #define ENET_CLKCTRL_CMPL 0x30000 -#define CM_DEFAULT_BASE (PRCM_BASE + 0x0500) - -struct cm_def { - unsigned int resv0[2]; - unsigned int l3fastclkstctrl; - unsigned int resv1[1]; - unsigned int pciclkstctrl; - unsigned int resv2[1]; - unsigned int ducaticlkstctrl; - unsigned int resv3[1]; - unsigned int emif0clkctrl; - unsigned int emif1clkctrl; - unsigned int dmmclkctrl; - unsigned int fwclkctrl; - unsigned int resv4[10]; - unsigned int usbclkctrl; - unsigned int resv5[1]; - unsigned int sataclkctrl; - unsigned int resv6[4]; - unsigned int ducaticlkctrl; - unsigned int pciclkctrl; -}; - -#define CM_ALWON_BASE (PRCM_BASE + 0x1400) - -struct cm_alwon { - unsigned int l3slowclkstctrl; - unsigned int ethclkstctrl; - unsigned int l3medclkstctrl; - unsigned int mmu_clkstctrl; - unsigned int mmucfg_clkstctrl; - unsigned int ocmc0clkstctrl; - unsigned int vcpclkstctrl; - unsigned int mpuclkstctrl; - unsigned int sysclk4clkstctrl; - unsigned int sysclk5clkstctrl; - unsigned int sysclk6clkstctrl; - unsigned int rtcclkstctrl; - unsigned int l3fastclkstctrl; - unsigned int resv0[67]; - unsigned int mcasp0clkctrl; - unsigned int mcasp1clkctrl; - unsigned int mcasp2clkctrl; - unsigned int mcbspclkctrl; - unsigned int uart0clkctrl; - unsigned int uart1clkctrl; - unsigned int uart2clkctrl; - unsigned int gpio0clkctrl; - unsigned int gpio1clkctrl; - unsigned int i2c0clkctrl; - unsigned int i2c1clkctrl; - unsigned int mcasp345clkctrl; - unsigned int atlclkctrl; - unsigned int mlbclkctrl; - unsigned int pataclkctrl; - unsigned int resv1[1]; - unsigned int uart3clkctrl; - unsigned int uart4clkctrl; - unsigned int uart5clkctrl; - unsigned int wdtimerclkctrl; - unsigned int spiclkctrl; - unsigned int mailboxclkctrl; - unsigned int spinboxclkctrl; - unsigned int mmudataclkctrl; - unsigned int resv2[2]; - unsigned int mmucfgclkctrl; - unsigned int resv3[2]; - unsigned int ocmc0clkctrl; - unsigned int vcpclkctrl; - unsigned int resv4[2]; - unsigned int controlclkctrl; - unsigned int resv5[2]; - unsigned int gpmcclkctrl; - unsigned int ethernet0clkctrl; - unsigned int ethernet1clkctrl; - unsigned int mpuclkctrl; - unsigned int debugssclkctrl; - unsigned int l3clkctrl; - unsigned int l4hsclkctrl; - unsigned int l4lsclkctrl; - unsigned int rtcclkctrl; - unsigned int tpccclkctrl; - unsigned int tptc0clkctrl; - unsigned int tptc1clkctrl; - unsigned int tptc2clkctrl; - unsigned int tptc3clkctrl; - unsigned int resv7[4]; - unsigned int dcan01clkctrl; - unsigned int mmchs0clkctrl; - unsigned int mmchs1clkctrl; - unsigned int mmchs2clkctrl; - unsigned int custefuseclkctrl; -}; - #define SATA_PLL_BASE (CTRL_BASE + 0x0720) struct sata_pll { @@ -264,11 +169,6 @@ const struct sata_pll *spll = (struct sata_pll *)SATA_PLL_BASE; */ static void enable_per_clocks(void) { - /* UART0 */ - writel(PRCM_MOD_EN, &cmalwon->uart0clkctrl); - while (readl(&cmalwon->uart0clkctrl) != PRCM_MOD_EN) - ; - /* HSMMC1 */ writel(PRCM_MOD_EN, &cmalwon->mmchs1clkctrl); while (readl(&cmalwon->mmchs1clkctrl) != PRCM_MOD_EN) @@ -282,6 +182,12 @@ static void enable_per_clocks(void) writel(PRCM_MOD_EN, &cmalwon->ethernet1clkctrl); while ((readl(&cmalwon->ethernet1clkctrl) & ENET_CLKCTRL_CMPL) != 0) ; + + /* RTC clocks */ + writel(PRCM_MOD_EN, &cmalwon->rtcclkstctrl); + writel(PRCM_MOD_EN, &cmalwon->rtcclkctrl); + while (readl(&cmalwon->rtcclkctrl) != PRCM_MOD_EN) + ; } /* @@ -455,8 +361,6 @@ void sata_pll_config(void) ; } -void enable_emif_clocks(void) {}; - void enable_dmm_clocks(void) { writel(PRCM_MOD_EN, &cmdef->fwclkctrl); @@ -477,13 +381,19 @@ void enable_dmm_clocks(void) ; } +void setup_clocks_for_console(void) +{ + unlock_pll_control_mmr(); + /* UART0 */ + writel(PRCM_MOD_EN, &cmalwon->uart0clkctrl); + while (readl(&cmalwon->uart0clkctrl) != PRCM_MOD_EN) + ; +} /* * Configure the PLL/PRCM for necessary peripherals */ -void pll_init() +void prcm_init(void) { - unlock_pll_control_mmr(); - /* Enable the control module */ writel(PRCM_MOD_EN, &cmalwon->controlclkctrl); diff --git a/arch/arm/cpu/armv7/am33xx/clock_ti816x.c b/arch/arm/cpu/armv7/am33xx/clock_ti816x.c new file mode 100644 index 0000000..ace4a5a --- /dev/null +++ b/arch/arm/cpu/armv7/am33xx/clock_ti816x.c @@ -0,0 +1,445 @@ +/* + * clock_ti816x.c + * + * Clocks for TI816X based boards + * + * Copyright (C) 2013, Adeneo Embedded <www.adeneo-embedded.com> + * Antoine Tenart, <atenart@adeneo-embedded.com> + * + * Based on TI-PSP-04.00.02.14 : + * + * Copyright (C) 2009, Texas Instruments, Incorporated + * + * 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. + */ + +#include <common.h> +#include <asm/arch/ddr_defs.h> +#include <asm/arch/cpu.h> +#include <asm/arch/clock.h> +#include <asm/arch/hardware.h> +#include <asm/io.h> + +#include <asm/emif.h> + +#define CM_PLL_BASE (CTRL_BASE + 0x0400) + +/* Main PLL */ +#define MAIN_N 64 +#define MAIN_P 0x1 +#define MAIN_INTFREQ1 0x8 +#define MAIN_FRACFREQ1 0x800000 +#define MAIN_MDIV1 0x2 +#define MAIN_INTFREQ2 0xE +#define MAIN_FRACFREQ2 0x0 +#define MAIN_MDIV2 0x1 +#define MAIN_INTFREQ3 0x8 +#define MAIN_FRACFREQ3 0xAAAAB0 +#define MAIN_MDIV3 0x3 +#define MAIN_INTFREQ4 0x9 +#define MAIN_FRACFREQ4 0x55554F +#define MAIN_MDIV4 0x3 +#define MAIN_INTFREQ5 0x9 +#define MAIN_FRACFREQ5 0x374BC6 +#define MAIN_MDIV5 0xC +#define MAIN_MDIV6 0x48 +#define MAIN_MDIV7 0x4 + +/* DDR PLL */ +#if defined(CONFIG_TI816X_DDR_PLL_400) /* 400 MHz */ +#define DDR_N 59 +#define DDR_P 0x1 +#define DDR_MDIV1 0x4 +#define DDR_INTFREQ2 0x8 +#define DDR_FRACFREQ2 0xD99999 +#define DDR_MDIV2 0x1E +#define DDR_INTFREQ3 0x8 +#define DDR_FRACFREQ3 0x0 +#define DDR_MDIV3 0x4 +#define DDR_INTFREQ4 0xE /* Expansion DDR clk */ +#define DDR_FRACFREQ4 0x0 +#define DDR_MDIV4 0x4 +#define DDR_INTFREQ5 0xE /* Expansion DDR clk */ +#define DDR_FRACFREQ5 0x0 +#define DDR_MDIV5 0x4 +#elif defined(CONFIG_TI816X_DDR_PLL_531) /* 531 MHz */ +#define DDR_N 59 +#define DDR_P 0x1 +#define DDR_MDIV1 0x3 +#define DDR_INTFREQ2 0x8 +#define DDR_FRACFREQ2 0xD99999 +#define DDR_MDIV2 0x1E +#define DDR_INTFREQ3 0x8 +#define DDR_FRACFREQ3 0x0 +#define DDR_MDIV3 0x4 +#define DDR_INTFREQ4 0xE /* Expansion DDR clk */ +#define DDR_FRACFREQ4 0x0 +#define DDR_MDIV4 0x4 +#define DDR_INTFREQ5 0xE /* Expansion DDR clk */ +#define DDR_FRACFREQ5 0x0 +#define DDR_MDIV5 0x4 +#elif defined(CONFIG_TI816X_DDR_PLL_675) /* 675 MHz */ +#define DDR_N 50 +#define DDR_P 0x1 +#define DDR_MDIV1 0x2 +#define DDR_INTFREQ2 0x9 +#define DDR_FRACFREQ2 0x0 +#define DDR_MDIV2 0x19 +#define DDR_INTFREQ3 0x13 +#define DDR_FRACFREQ3 0x800000 +#define DDR_MDIV3 0x2 +#define DDR_INTFREQ4 0xE /* Expansion DDR clk */ +#define DDR_FRACFREQ4 0x0 +#define DDR_MDIV4 0x4 +#define DDR_INTFREQ5 0xE /* Expansion DDR clk */ +#define DDR_FRACFREQ5 0x0 +#define DDR_MDIV5 0x4 +#elif defined(CONFIG_TI816X_DDR_PLL_796) /* 796 MHz */ +#define DDR_N 59 +#define DDR_P 0x1 +#define DDR_MDIV1 0x2 +#define DDR_INTFREQ2 0x8 +#define DDR_FRACFREQ2 0xD99999 +#define DDR_MDIV2 0x1E +#define DDR_INTFREQ3 0x8 +#define DDR_FRACFREQ3 0x0 +#define DDR_MDIV3 0x4 +#define DDR_INTFREQ4 0xE /* Expansion DDR clk */ +#define DDR_FRACFREQ4 0x0 +#define DDR_MDIV4 0x4 +#define DDR_INTFREQ5 0xE /* Expansion DDR clk */ +#define DDR_FRACFREQ5 0x0 +#define DDR_MDIV5 0x4 +#endif + +#define CONTROL_STATUS (CTRL_BASE + 0x40) +#define DDR_RCD (CTRL_BASE + 0x070C) +#define CM_TIMER1_CLKSEL (PRCM_BASE + 0x390) +#define DMM_PAT_BASE_ADDR (DMM_BASE + 0x420) +#define CM_ALWON_CUST_EFUSE_CLKCTRL (PRCM_BASE + 0x1628) + +#define INTCPS_SYSCONFIG 0x48200010 +#define CM_SYSCLK10_CLKSEL 0x48180324 + +struct cm_pll { + unsigned int mainpll_ctrl; /* offset 0x400 */ + unsigned int mainpll_pwd; + unsigned int mainpll_freq1; + unsigned int mainpll_div1; + unsigned int mainpll_freq2; + unsigned int mainpll_div2; + unsigned int mainpll_freq3; + unsigned int mainpll_div3; + unsigned int mainpll_freq4; + unsigned int mainpll_div4; + unsigned int mainpll_freq5; + unsigned int mainpll_div5; + unsigned int resv0[1]; + unsigned int mainpll_div6; + unsigned int resv1[1]; + unsigned int mainpll_div7; + unsigned int ddrpll_ctrl; /* offset 0x440 */ + unsigned int ddrpll_pwd; + unsigned int resv2[1]; + unsigned int ddrpll_div1; + unsigned int ddrpll_freq2; + unsigned int ddrpll_div2; + unsigned int ddrpll_freq3; + unsigned int ddrpll_div3; + unsigned int ddrpll_freq4; + unsigned int ddrpll_div4; + unsigned int ddrpll_freq5; + unsigned int ddrpll_div5; + unsigned int videopll_ctrl; /* offset 0x470 */ + unsigned int videopll_pwd; + unsigned int videopll_freq1; + unsigned int videopll_div1; + unsigned int videopll_freq2; + unsigned int videopll_div2; + unsigned int videopll_freq3; + unsigned int videopll_div3; + unsigned int resv3[4]; + unsigned int audiopll_ctrl; /* offset 0x4A0 */ + unsigned int audiopll_pwd; + unsigned int resv4[2]; + unsigned int audiopll_freq2; + unsigned int audiopll_div2; + unsigned int audiopll_freq3; + unsigned int audiopll_div3; + unsigned int audiopll_freq4; + unsigned int audiopll_div4; + unsigned int audiopll_freq5; + unsigned int audiopll_div5; +}; + +const struct cm_alwon *cmalwon = (struct cm_alwon *)CM_ALWON_BASE; +const struct cm_def *cmdef = (struct cm_def *)CM_DEFAULT_BASE; +const struct cm_pll *cmpll = (struct cm_pll *)CM_PLL_BASE; +const struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE; + +void enable_dmm_clocks(void) +{ + writel(PRCM_MOD_EN, &cmdef->l3fastclkstctrl); + writel(PRCM_MOD_EN, &cmdef->emif0clkctrl); + writel(PRCM_MOD_EN, &cmdef->emif1clkctrl); + + /* Wait for clocks to be active */ + while ((readl(&cmdef->l3fastclkstctrl) & 0x300) != 0x300) + ; + /* Wait for emif0 to be fully functional, including OCP */ + while (((readl(&cmdef->emif0clkctrl) >> 17) & 0x3) != 0) + ; + /* Wait for emif1 to be fully functional, including OCP */ + while (((readl(&cmdef->emif1clkctrl) >> 17) & 0x3) != 0) + ; + + writel(PRCM_MOD_EN, &cmdef->dmmclkctrl); + /* Wait for dmm to be fully functional, including OCP */ + while (((readl(&cmdef->dmmclkctrl) >> 17) & 0x3) != 0) + ; + + /* Enable Tiled Access */ + writel(0x80000000, DMM_PAT_BASE_ADDR); +} + +/* assume delay is aprox at least 1us */ +static void ddr_delay(int d) +{ + int i; + + /* + * read a control register. + * this is a bit more delay and cannot be optimized by the compiler + * assuming one read takes 200 cycles and A8 is runing 1 GHz + * somewhat conservative setting + */ + for (i = 0; i < 50*d; i++) + readl(CONTROL_STATUS); +} + +static void main_pll_init_ti816x(void) +{ + u32 main_pll_ctrl = 0; + + /* Put the PLL in bypass mode by setting BIT2 in its ctrl reg */ + main_pll_ctrl = readl(&cmpll->mainpll_ctrl); + main_pll_ctrl &= 0xFFFFFFFB; + main_pll_ctrl |= BIT(2); + writel(main_pll_ctrl, &cmpll->mainpll_ctrl); + + /* Enable PLL by setting BIT3 in its ctrl reg */ + main_pll_ctrl = readl(&cmpll->mainpll_ctrl); + main_pll_ctrl &= 0xFFFFFFF7; + main_pll_ctrl |= BIT(3); + writel(main_pll_ctrl, &cmpll->mainpll_ctrl); + + /* Write the values of N,P in the CTRL reg */ + main_pll_ctrl = readl(&cmpll->mainpll_ctrl); + main_pll_ctrl &= 0xFF; + main_pll_ctrl |= (MAIN_N<<16 | MAIN_P<<8); + writel(main_pll_ctrl, &cmpll->mainpll_ctrl); + + /* Power up clock1-7 */ + writel(0x0, &cmpll->mainpll_pwd); + + /* Program the freq and divider values for clock1-7 */ + writel((1<<31 | 1<<28 | (MAIN_INTFREQ1<<24) | MAIN_FRACFREQ1), + &cmpll->mainpll_freq1); + writel(((1<<8) | MAIN_MDIV1), &cmpll->mainpll_div1); + + writel((1<<31 | 1<<28 | (MAIN_INTFREQ2<<24) | MAIN_FRACFREQ2), + &cmpll->mainpll_freq2); + writel(((1<<8) | MAIN_MDIV2), &cmpll->mainpll_div2); + + writel((1<<31 | 1<<28 | (MAIN_INTFREQ3<<24) | MAIN_FRACFREQ3), + &cmpll->mainpll_freq3); + writel(((1<<8) | MAIN_MDIV3), &cmpll->mainpll_div3); + + writel((1<<31 | 1<<28 | (MAIN_INTFREQ4<<24) | MAIN_FRACFREQ4), + &cmpll->mainpll_freq4); + writel(((1<<8) | MAIN_MDIV4), &cmpll->mainpll_div4); + + writel((1<<31 | 1<<28 | (MAIN_INTFREQ5<<24) | MAIN_FRACFREQ5), + &cmpll->mainpll_freq5); + writel(((1<<8) | MAIN_MDIV5), &cmpll->mainpll_div5); + + writel((1<<8 | MAIN_MDIV6), &cmpll->mainpll_div6); + + writel((1<<8 | MAIN_MDIV7), &cmpll->mainpll_div7); + + /* Wait for PLL to lock */ + while ((readl(&cmpll->mainpll_ctrl) & BIT(7)) != BIT(7)) + ; + + /* Put the PLL in normal mode, disable bypass */ + main_pll_ctrl = readl(&cmpll->mainpll_ctrl); + main_pll_ctrl &= 0xFFFFFFFB; + writel(main_pll_ctrl, &cmpll->mainpll_ctrl); +} + +static void ddr_pll_bypass_ti816x(void) +{ + u32 ddr_pll_ctrl = 0; + + /* Put the PLL in bypass mode by setting BIT2 in its ctrl reg */ + ddr_pll_ctrl = readl(&cmpll->ddrpll_ctrl); + ddr_pll_ctrl &= 0xFFFFFFFB; + ddr_pll_ctrl |= BIT(2); + writel(ddr_pll_ctrl, &cmpll->ddrpll_ctrl); +} + +static void ddr_pll_init_ti816x(void) +{ + u32 ddr_pll_ctrl = 0; + /* Enable PLL by setting BIT3 in its ctrl reg */ + ddr_pll_ctrl = readl(&cmpll->ddrpll_ctrl); + ddr_pll_ctrl &= 0xFFFFFFF7; + ddr_pll_ctrl |= BIT(3); + writel(ddr_pll_ctrl, &cmpll->ddrpll_ctrl); + + /* Write the values of N,P in the CTRL reg */ + ddr_pll_ctrl = readl(&cmpll->ddrpll_ctrl); + ddr_pll_ctrl &= 0xFF; + ddr_pll_ctrl |= (DDR_N<<16 | DDR_P<<8); + writel(ddr_pll_ctrl, &cmpll->ddrpll_ctrl); + + ddr_delay(10); + + /* Power up clock1-5 */ + writel(0x0, &cmpll->ddrpll_pwd); + + /* Program the freq and divider values for clock1-3 */ + writel(((0<<8) | DDR_MDIV1), &cmpll->ddrpll_div1); + ddr_delay(1); + writel(((1<<8) | DDR_MDIV1), &cmpll->ddrpll_div1); + writel((1<<31 | 1<<28 | (DDR_INTFREQ2<<24) | DDR_FRACFREQ2), + &cmpll->ddrpll_freq2); + writel(((1<<8) | DDR_MDIV2), &cmpll->ddrpll_div2); + writel(((0<<8) | DDR_MDIV3), &cmpll->ddrpll_div3); + ddr_delay(1); + writel(((1<<8) | DDR_MDIV3), &cmpll->ddrpll_div3); + ddr_delay(1); + writel((0<<31 | 1<<28 | (DDR_INTFREQ3<<24) | DDR_FRACFREQ3), + &cmpll->ddrpll_freq3); + ddr_delay(1); + writel((1<<31 | 1<<28 | (DDR_INTFREQ3<<24) | DDR_FRACFREQ3), + &cmpll->ddrpll_freq3); + + ddr_delay(5); + + /* Wait for PLL to lock */ + while ((readl(&cmpll->ddrpll_ctrl) & BIT(7)) != BIT(7)) + ; + + /* Power up RCD */ + writel(BIT(0), DDR_RCD); +} + +static void peripheral_enable(void) +{ + /* Wake-up the l3_slow clock */ + writel(PRCM_MOD_EN, &cmalwon->l3slowclkstctrl); + + /* + * Note on Timers: + * There are 8 timers(0-7) out of which timer 0 is a secure timer. + * Timer 0 mux should not be changed + * + * To access the timer registers we need the to be + * enabled which is what we do in the first step + */ + + /* Enable timer1 */ + writel(PRCM_MOD_EN, &cmalwon->timer1clkctrl); + /* Select timer1 clock to be CLKIN (27MHz) */ + writel(BIT(1), CM_TIMER1_CLKSEL); + + /* Wait for timer1 to be ON-ACTIVE */ + while (((readl(&cmalwon->l3slowclkstctrl) + & (0x80000<<1))>>20) != 1) + ; + /* Wait for timer1 to be enabled */ + while (((readl(&cmalwon->timer1clkctrl) & 0x30000)>>16) != 0) + ; + /* Active posted mode */ + writel(PRCM_MOD_EN, (DM_TIMER1_BASE + 0x54)); + while (readl(DM_TIMER1_BASE + 0x10) & BIT(0)) + ; + /* Start timer1 */ + writel(BIT(0), (DM_TIMER1_BASE + 0x38)); + + /* eFuse */ + writel(PRCM_MOD_EN, CM_ALWON_CUST_EFUSE_CLKCTRL); + while (readl(CM_ALWON_CUST_EFUSE_CLKCTRL) != PRCM_MOD_EN) + ; + + /* Enable gpio0 */ + writel(PRCM_MOD_EN, &cmalwon->gpio0clkctrl); + while (readl(&cmalwon->gpio0clkctrl) != PRCM_MOD_EN) + ; + writel((BIT(8)), &cmalwon->gpio0clkctrl); + + /* Enable spi */ + writel(PRCM_MOD_EN, &cmalwon->spiclkctrl); + while (readl(&cmalwon->spiclkctrl) != PRCM_MOD_EN) + ; + + /* Enable i2c0 */ + writel(PRCM_MOD_EN, &cmalwon->i2c0clkctrl); + while (readl(&cmalwon->i2c0clkctrl) != PRCM_MOD_EN) + ; + + /* Enable ethernet0 */ + writel(PRCM_MOD_EN, &cmalwon->ethclkstctrl); + writel(PRCM_MOD_EN, &cmalwon->ethernet0clkctrl); + writel(PRCM_MOD_EN, &cmalwon->ethernet1clkctrl); + + /* Enable hsmmc */ + writel(PRCM_MOD_EN, &cmalwon->sdioclkctrl); + while (readl(&cmalwon->sdioclkctrl) != PRCM_MOD_EN) + ; +} + +void setup_clocks_for_console(void) +{ + /* Fix ROM code bug - from TI-PSP-04.00.02.14 */ + writel(0x0, CM_SYSCLK10_CLKSEL); + + ddr_pll_bypass_ti816x(); + + /* Enable uart0-2 */ + writel(PRCM_MOD_EN, &cmalwon->uart0clkctrl); + while (readl(&cmalwon->uart0clkctrl) != PRCM_MOD_EN) + ; + writel(PRCM_MOD_EN, &cmalwon->uart1clkctrl); + while (readl(&cmalwon->uart1clkctrl) != PRCM_MOD_EN) + ; + writel(PRCM_MOD_EN, &cmalwon->uart2clkctrl); + while (readl(&cmalwon->uart2clkctrl) != PRCM_MOD_EN) + ; + while ((readl(&cmalwon->l3slowclkstctrl) & 0x2100) != 0x2100) + ; +} + +void prcm_init(void) +{ + /* Enable the control */ + writel(PRCM_MOD_EN, &cmalwon->controlclkctrl); + + main_pll_init_ti816x(); + ddr_pll_init_ti816x(); + + /* + * With clk freqs setup to desired values, + * enable the required peripherals + */ + peripheral_enable(); +} diff --git a/arch/arm/cpu/armv7/am33xx/emif4.c b/arch/arm/cpu/armv7/am33xx/emif4.c index ad7b70f..59ad25c 100644 --- a/arch/arm/cpu/armv7/am33xx/emif4.c +++ b/arch/arm/cpu/armv7/am33xx/emif4.c @@ -35,16 +35,21 @@ void dram_init_banksize(void) } -#ifdef CONFIG_SPL_BUILD +#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT) +#ifdef CONFIG_TI81XX static struct dmm_lisa_map_regs *hw_lisa_map_regs = (struct dmm_lisa_map_regs *)DMM_BASE; +#endif +#ifndef CONFIG_TI816X static struct vtp_reg *vtpreg[2] = { (struct vtp_reg *)VTP0_CTRL_ADDR, (struct vtp_reg *)VTP1_CTRL_ADDR}; +#endif #ifdef CONFIG_AM33XX static struct ddr_ctrl *ddrctrl = (struct ddr_ctrl *)DDR_CTRL_ADDR; #endif +#ifdef CONFIG_TI81XX void config_dmm(const struct dmm_lisa_map_regs *regs) { enable_dmm_clocks(); @@ -59,7 +64,9 @@ void config_dmm(const struct dmm_lisa_map_regs *regs) writel(regs->dmm_lisa_map_1, &hw_lisa_map_regs->dmm_lisa_map_1); writel(regs->dmm_lisa_map_0, &hw_lisa_map_regs->dmm_lisa_map_0); } +#endif +#ifndef CONFIG_TI816X static void config_vtp(int nr) { writel(readl(&vtpreg[nr]->vtp0ctrlreg) | VTP_CTRL_ENABLE, @@ -74,14 +81,20 @@ static void config_vtp(int nr) VTP_CTRL_READY) ; } +#endif + +void __weak ddr_pll_config(unsigned int ddrpll_m) +{ +} void config_ddr(unsigned int pll, unsigned int ioctrl, const struct ddr_data *data, const struct cmd_control *ctrl, const struct emif_regs *regs, int nr) { - enable_emif_clocks(); ddr_pll_config(pll); +#ifndef CONFIG_TI816X config_vtp(nr); +#endif config_cmd_ctrl(ctrl, nr); config_ddr_data(data, nr); diff --git a/arch/arm/cpu/armv7/am33xx/mem.c b/arch/arm/cpu/armv7/am33xx/mem.c index f81c9a8..b6eb466 100644 --- a/arch/arm/cpu/armv7/am33xx/mem.c +++ b/arch/arm/cpu/armv7/am33xx/mem.c @@ -69,9 +69,13 @@ void gpmc_init(void) #endif /* global settings */ writel(0x00000008, &gpmc_cfg->sysconfig); - writel(0x00000100, &gpmc_cfg->irqstatus); - writel(0x00000100, &gpmc_cfg->irqenable); + writel(0x00000000, &gpmc_cfg->irqstatus); + writel(0x00000000, &gpmc_cfg->irqenable); +#ifdef CONFIG_NOR + writel(0x00000200, &gpmc_cfg->config); +#else writel(0x00000012, &gpmc_cfg->config); +#endif /* * Disable the GPMC0 config set by ROM code */ |