diff options
Diffstat (limited to 'arch/arm/cpu/armv7/omap4')
| -rw-r--r-- | arch/arm/cpu/armv7/omap4/Makefile | 6 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/omap4/board.c | 384 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/omap4/clocks.c | 941 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/omap4/emif.c | 1254 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/omap4/lowlevel_init.S | 87 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/omap4/mem.c | 45 |
6 files changed, 0 insertions, 2717 deletions
diff --git a/arch/arm/cpu/armv7/omap4/Makefile b/arch/arm/cpu/armv7/omap4/Makefile index e7ee0b8..d912729 100644 --- a/arch/arm/cpu/armv7/omap4/Makefile +++ b/arch/arm/cpu/armv7/omap4/Makefile @@ -25,15 +25,9 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(SOC).o -SOBJS += lowlevel_init.o - -COBJS += board.o -COBJS += clocks.o -COBJS += emif.o COBJS += sdram_elpida.o ifndef CONFIG_SPL_BUILD -COBJS += mem.o COBJS += sys_info.o endif diff --git a/arch/arm/cpu/armv7/omap4/board.c b/arch/arm/cpu/armv7/omap4/board.c deleted file mode 100644 index 2497e3e..0000000 --- a/arch/arm/cpu/armv7/omap4/board.c +++ /dev/null @@ -1,384 +0,0 @@ -/* - * - * Common functions for OMAP4 based boards - * - * (C) Copyright 2010 - * Texas Instruments, <www.ti.com> - * - * Author : - * Aneesh V <aneesh@ti.com> - * Steve Sakoman <steve@sakoman.com> - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ -#include <common.h> -#include <asm/armv7.h> -#include <asm/arch/cpu.h> -#include <asm/arch/sys_proto.h> -#include <asm/sizes.h> -#include <asm/arch/emif.h> -#include <asm/arch/gpio.h> -#include "omap4_mux_data.h" - -DECLARE_GLOBAL_DATA_PTR; - -u32 *const omap4_revision = (u32 *)OMAP4_SRAM_SCRATCH_OMAP4_REV; - -static const struct gpio_bank gpio_bank_44xx[6] = { - { (void *)OMAP44XX_GPIO1_BASE, METHOD_GPIO_24XX }, - { (void *)OMAP44XX_GPIO2_BASE, METHOD_GPIO_24XX }, - { (void *)OMAP44XX_GPIO3_BASE, METHOD_GPIO_24XX }, - { (void *)OMAP44XX_GPIO4_BASE, METHOD_GPIO_24XX }, - { (void *)OMAP44XX_GPIO5_BASE, METHOD_GPIO_24XX }, - { (void *)OMAP44XX_GPIO6_BASE, METHOD_GPIO_24XX }, -}; - -const struct gpio_bank *const omap_gpio_bank = gpio_bank_44xx; - -#ifdef CONFIG_SPL_BUILD -/* - * We use static variables because global data is not ready yet. - * Initialized data is available in SPL right from the beginning. - * We would not typically need to save these parameters in regular - * U-Boot. This is needed only in SPL at the moment. - */ -u32 omap4_boot_device = BOOT_DEVICE_MMC1; -u32 omap4_boot_mode = MMCSD_MODE_FAT; - -u32 omap_boot_device(void) -{ - return omap4_boot_device; -} - -u32 omap_boot_mode(void) -{ - return omap4_boot_mode; -} - -/* - * Some tuning of IOs for optimal power and performance - */ -static void do_io_settings(void) -{ - u32 lpddr2io; - struct control_lpddr2io_regs *lpddr2io_regs = - (struct control_lpddr2io_regs *)LPDDR2_IO_REGS_BASE; - struct omap4_sys_ctrl_regs *const ctrl = - (struct omap4_sys_ctrl_regs *)SYSCTRL_GENERAL_CORE_BASE; - - u32 omap4_rev = omap_revision(); - - if (omap4_rev == OMAP4430_ES1_0) - lpddr2io = CONTROL_LPDDR2IO_SLEW_125PS_DRV8_PULL_DOWN; - else if (omap4_rev == OMAP4430_ES2_0) - lpddr2io = CONTROL_LPDDR2IO_SLEW_325PS_DRV8_GATE_KEEPER; - else - lpddr2io = CONTROL_LPDDR2IO_SLEW_315PS_DRV12_PULL_DOWN; - - /* EMIF1 */ - writel(lpddr2io, &lpddr2io_regs->control_lpddr2io1_0); - writel(lpddr2io, &lpddr2io_regs->control_lpddr2io1_1); - /* No pull for GR10 as per hw team's recommendation */ - writel(lpddr2io & ~LPDDR2IO_GR10_WD_MASK, - &lpddr2io_regs->control_lpddr2io1_2); - writel(CONTROL_LPDDR2IO_3_VAL, &lpddr2io_regs->control_lpddr2io1_3); - - /* EMIF2 */ - writel(lpddr2io, &lpddr2io_regs->control_lpddr2io2_0); - writel(lpddr2io, &lpddr2io_regs->control_lpddr2io2_1); - /* No pull for GR10 as per hw team's recommendation */ - writel(lpddr2io & ~LPDDR2IO_GR10_WD_MASK, - &lpddr2io_regs->control_lpddr2io2_2); - writel(CONTROL_LPDDR2IO_3_VAL, &lpddr2io_regs->control_lpddr2io2_3); - - /* - * Some of these settings (TRIM values) come from eFuse and are - * in turn programmed in the eFuse at manufacturing time after - * calibration of the device. Do the software over-ride only if - * the device is not correctly trimmed - */ - if (!(readl(&ctrl->control_std_fuse_opp_bgap) & 0xFFFF)) { - - writel(LDOSRAM_VOLT_CTRL_OVERRIDE, - &ctrl->control_ldosram_iva_voltage_ctrl); - - writel(LDOSRAM_VOLT_CTRL_OVERRIDE, - &ctrl->control_ldosram_mpu_voltage_ctrl); - - writel(LDOSRAM_VOLT_CTRL_OVERRIDE, - &ctrl->control_ldosram_core_voltage_ctrl); - } - - if (!readl(&ctrl->control_efuse_1)) - writel(CONTROL_EFUSE_1_OVERRIDE, &ctrl->control_efuse_1); - - if (!readl(&ctrl->control_efuse_2)) - writel(CONTROL_EFUSE_2_OVERRIDE, &ctrl->control_efuse_2); -} -#endif - -void do_set_mux(u32 base, struct pad_conf_entry const *array, int size) -{ - int i; - struct pad_conf_entry *pad = (struct pad_conf_entry *) array; - - for (i = 0; i < size; i++, pad++) - writew(pad->val, base + pad->offset); -} - -static void set_muxconf_regs_essential(void) -{ - do_set_mux(CONTROL_PADCONF_CORE, core_padconf_array_essential, - sizeof(core_padconf_array_essential) / - sizeof(struct pad_conf_entry)); - - do_set_mux(CONTROL_PADCONF_WKUP, wkup_padconf_array_essential, - sizeof(wkup_padconf_array_essential) / - sizeof(struct pad_conf_entry)); - - if (omap_revision() >= OMAP4460_ES1_0) - do_set_mux(CONTROL_PADCONF_WKUP, - wkup_padconf_array_essential_4460, - sizeof(wkup_padconf_array_essential_4460) / - sizeof(struct pad_conf_entry)); -} - -static void set_mux_conf_regs(void) -{ - switch (omap4_hw_init_context()) { - case OMAP_INIT_CONTEXT_SPL: - set_muxconf_regs_essential(); - break; - case OMAP_INIT_CONTEXT_UBOOT_AFTER_SPL: - set_muxconf_regs_non_essential(); - break; - case OMAP_INIT_CONTEXT_UBOOT_FROM_NOR: - case OMAP_INIT_CONTEXT_UBOOT_AFTER_CH: - set_muxconf_regs_essential(); - set_muxconf_regs_non_essential(); - break; - } -} - -static u32 cortex_a9_rev(void) -{ - - unsigned int rev; - - /* Read Main ID Register (MIDR) */ - asm ("mrc p15, 0, %0, c0, c0, 0" : "=r" (rev)); - - return rev; -} - -static void init_omap4_revision(void) -{ - /* - * For some of the ES2/ES1 boards ID_CODE is not reliable: - * Also, ES1 and ES2 have different ARM revisions - * So use ARM revision for identification - */ - unsigned int arm_rev = cortex_a9_rev(); - - switch (arm_rev) { - case MIDR_CORTEX_A9_R0P1: - *omap4_revision = OMAP4430_ES1_0; - break; - case MIDR_CORTEX_A9_R1P2: - switch (readl(CONTROL_ID_CODE)) { - case OMAP4430_CONTROL_ID_CODE_ES2_0: - *omap4_revision = OMAP4430_ES2_0; - break; - case OMAP4430_CONTROL_ID_CODE_ES2_1: - *omap4_revision = OMAP4430_ES2_1; - break; - case OMAP4430_CONTROL_ID_CODE_ES2_2: - *omap4_revision = OMAP4430_ES2_2; - break; - default: - *omap4_revision = OMAP4430_ES2_0; - break; - } - break; - case MIDR_CORTEX_A9_R1P3: - *omap4_revision = OMAP4430_ES2_3; - break; - case MIDR_CORTEX_A9_R2P10: - switch (readl(CONTROL_ID_CODE)) { - case OMAP4460_CONTROL_ID_CODE_ES1_0: - *omap4_revision = OMAP4460_ES1_0; - break; - case OMAP4460_CONTROL_ID_CODE_ES1_1: - *omap4_revision = OMAP4460_ES1_1; - break; - default: - *omap4_revision = OMAP4460_ES1_0; - break; - } - break; - default: - *omap4_revision = OMAP4430_SILICON_ID_INVALID; - break; - } -} - -void omap_rev_string(char *omap4_rev_string) -{ - u32 omap4_rev = omap_revision(); - u32 omap4_variant = (omap4_rev & 0xFFFF0000) >> 16; - u32 major_rev = (omap4_rev & 0x00000F00) >> 8; - u32 minor_rev = (omap4_rev & 0x000000F0) >> 4; - - sprintf(omap4_rev_string, "OMAP%x ES%x.%x", omap4_variant, major_rev, - minor_rev); -} - -/* - * Routine: s_init - * Description: Does early system init of watchdog, muxing, andclocks - * Watchdog disable is done always. For the rest what gets done - * depends on the boot mode in which this function is executed - * 1. s_init of SPL running from SRAM - * 2. s_init of U-Boot running from FLASH - * 3. s_init of U-Boot loaded to SDRAM by SPL - * 4. s_init of U-Boot loaded to SDRAM by ROM code using the - * Configuration Header feature - * Please have a look at the respective functions to see what gets - * done in each of these cases - * This function is called with SRAM stack. - */ -void s_init(void) -{ - init_omap4_revision(); - watchdog_init(); - set_mux_conf_regs(); -#ifdef CONFIG_SPL_BUILD - setup_clocks_for_console(); - preloader_console_init(); - do_io_settings(); -#endif - prcm_init(); -#ifdef CONFIG_SPL_BUILD - /* For regular u-boot sdram_init() is called from dram_init() */ - sdram_init(); -#endif -} - -/* - * Routine: wait_for_command_complete - * Description: Wait for posting to finish on watchdog - */ -void wait_for_command_complete(struct watchdog *wd_base) -{ - int pending = 1; - do { - pending = readl(&wd_base->wwps); - } while (pending); -} - -/* - * Routine: watchdog_init - * Description: Shut down watch dogs - */ -void watchdog_init(void) -{ - struct watchdog *wd2_base = (struct watchdog *)WDT2_BASE; - - writel(WD_UNLOCK1, &wd2_base->wspr); - wait_for_command_complete(wd2_base); - writel(WD_UNLOCK2, &wd2_base->wspr); -} - - -/* - * This function finds the SDRAM size available in the system - * based on DMM section configurations - * This is needed because the size of memory installed may be - * different on different versions of the board - */ -u32 omap4_sdram_size(void) -{ - u32 section, i, total_size = 0, size, addr; - for (i = 0; i < 4; i++) { - section = __raw_readl(OMAP44XX_DMM_LISA_MAP_BASE + i*4); - addr = section & OMAP44XX_SYS_ADDR_MASK; - /* See if the address is valid */ - if ((addr >= OMAP44XX_DRAM_ADDR_SPACE_START) && - (addr < OMAP44XX_DRAM_ADDR_SPACE_END)) { - size = ((section & OMAP44XX_SYS_SIZE_MASK) >> - OMAP44XX_SYS_SIZE_SHIFT); - size = 1 << size; - size *= SZ_16M; - total_size += size; - } - } - return total_size; -} - - -/* - * Routine: dram_init - * Description: sets uboots idea of sdram size - */ -int dram_init(void) -{ - sdram_init(); - gd->ram_size = omap4_sdram_size(); - - return 0; -} - -/* - * Print board information - */ -int checkboard(void) -{ - puts(sysinfo.board_string); - return 0; -} - -/* -* This function is called by start_armboot. You can reliably use static -* data. Any boot-time function that require static data should be -* called from here -*/ -int arch_cpu_init(void) -{ - return 0; -} - -#ifndef CONFIG_SYS_L2CACHE_OFF -void v7_outer_cache_enable(void) -{ - set_pl310_ctrl_reg(1); -} - -void v7_outer_cache_disable(void) -{ - set_pl310_ctrl_reg(0); -} -#endif - -#ifndef CONFIG_SYS_DCACHE_OFF -void enable_caches(void) -{ - /* Enable D-cache. I-cache is already enabled in start.S */ - dcache_enable(); -} -#endif diff --git a/arch/arm/cpu/armv7/omap4/clocks.c b/arch/arm/cpu/armv7/omap4/clocks.c deleted file mode 100644 index 095ba39..0000000 --- a/arch/arm/cpu/armv7/omap4/clocks.c +++ /dev/null @@ -1,941 +0,0 @@ -/* - * - * Clock initialization for OMAP4 - * - * (C) Copyright 2010 - * Texas Instruments, <www.ti.com> - * - * Aneesh V <aneesh@ti.com> - * - * Based on previous work by: - * Santosh Shilimkar <santosh.shilimkar@ti.com> - * Rajendra Nayak <rnayak@ti.com> - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ -#include <common.h> -#include <asm/omap_common.h> -#include <asm/gpio.h> -#include <asm/arch/clocks.h> -#include <asm/arch/sys_proto.h> -#include <asm/utils.h> -#include <asm/omap_gpio.h> - -#ifndef CONFIG_SPL_BUILD -/* - * printing to console doesn't work unless - * this code is executed from SPL - */ -#define printf(fmt, args...) -#define puts(s) -#endif - -#define abs(x) (((x) < 0) ? ((x)*-1) : (x)) - -struct omap4_prcm_regs *const prcm = (struct omap4_prcm_regs *)0x4A004100; - -static const u32 sys_clk_array[8] = { - 12000000, /* 12 MHz */ - 13000000, /* 13 MHz */ - 16800000, /* 16.8 MHz */ - 19200000, /* 19.2 MHz */ - 26000000, /* 26 MHz */ - 27000000, /* 27 MHz */ - 38400000, /* 38.4 MHz */ -}; - -/* - * The M & N values in the following tables are created using the - * following tool: - * tools/omap/clocks_get_m_n.c - * Please use this tool for creating the table for any new frequency. - */ - -/* dpll locked at 1840 MHz MPU clk at 920 MHz(OPP Turbo 4460) - DCC OFF */ -static const struct dpll_params mpu_dpll_params_1840mhz[NUM_SYS_CLKS] = { - {230, 2, 1, -1, -1, -1, -1, -1}, /* 12 MHz */ - {920, 12, 1, -1, -1, -1, -1, -1}, /* 13 MHz */ - {219, 3, 1, -1, -1, -1, -1, -1}, /* 16.8 MHz */ - {575, 11, 1, -1, -1, -1, -1, -1}, /* 19.2 MHz */ - {460, 12, 1, -1, -1, -1, -1, -1}, /* 26 MHz */ - {920, 26, 1, -1, -1, -1, -1, -1}, /* 27 MHz */ - {575, 23, 1, -1, -1, -1, -1, -1} /* 38.4 MHz */ -}; - -/* dpll locked at 1584 MHz - MPU clk at 792 MHz(OPP Turbo 4430) */ -static const struct dpll_params mpu_dpll_params_1584mhz[NUM_SYS_CLKS] = { - {66, 0, 1, -1, -1, -1, -1, -1}, /* 12 MHz */ - {792, 12, 1, -1, -1, -1, -1, -1}, /* 13 MHz */ - {330, 6, 1, -1, -1, -1, -1, -1}, /* 16.8 MHz */ - {165, 3, 1, -1, -1, -1, -1, -1}, /* 19.2 MHz */ - {396, 12, 1, -1, -1, -1, -1, -1}, /* 26 MHz */ - {88, 2, 1, -1, -1, -1, -1, -1}, /* 27 MHz */ - {165, 7, 1, -1, -1, -1, -1, -1} /* 38.4 MHz */ -}; - -/* dpll locked at 1200 MHz - MPU clk at 600 MHz */ -static const struct dpll_params mpu_dpll_params_1200mhz[NUM_SYS_CLKS] = { - {50, 0, 1, -1, -1, -1, -1, -1}, /* 12 MHz */ - {600, 12, 1, -1, -1, -1, -1, -1}, /* 13 MHz */ - {250, 6, 1, -1, -1, -1, -1, -1}, /* 16.8 MHz */ - {125, 3, 1, -1, -1, -1, -1, -1}, /* 19.2 MHz */ - {300, 12, 1, -1, -1, -1, -1, -1}, /* 26 MHz */ - {200, 8, 1, -1, -1, -1, -1, -1}, /* 27 MHz */ - {125, 7, 1, -1, -1, -1, -1, -1} /* 38.4 MHz */ -}; - -static const struct dpll_params core_dpll_params_1600mhz[NUM_SYS_CLKS] = { - {200, 2, 1, 5, 8, 4, 6, 5}, /* 12 MHz */ - {800, 12, 1, 5, 8, 4, 6, 5}, /* 13 MHz */ - {619, 12, 1, 5, 8, 4, 6, 5}, /* 16.8 MHz */ - {125, 2, 1, 5, 8, 4, 6, 5}, /* 19.2 MHz */ - {400, 12, 1, 5, 8, 4, 6, 5}, /* 26 MHz */ - {800, 26, 1, 5, 8, 4, 6, 5}, /* 27 MHz */ - {125, 5, 1, 5, 8, 4, 6, 5} /* 38.4 MHz */ -}; - -static const struct dpll_params core_dpll_params_es1_1524mhz[NUM_SYS_CLKS] = { - {127, 1, 1, 5, 8, 4, 6, 5}, /* 12 MHz */ - {762, 12, 1, 5, 8, 4, 6, 5}, /* 13 MHz */ - {635, 13, 1, 5, 8, 4, 6, 5}, /* 16.8 MHz */ - {635, 15, 1, 5, 8, 4, 6, 5}, /* 19.2 MHz */ - {381, 12, 1, 5, 8, 4, 6, 5}, /* 26 MHz */ - {254, 8, 1, 5, 8, 4, 6, 5}, /* 27 MHz */ - {496, 24, 1, 5, 8, 4, 6, 5} /* 38.4 MHz */ -}; - -static const struct dpll_params - core_dpll_params_es2_1600mhz_ddr200mhz[NUM_SYS_CLKS] = { - {200, 2, 2, 5, 8, 4, 6, 5}, /* 12 MHz */ - {800, 12, 2, 5, 8, 4, 6, 5}, /* 13 MHz */ - {619, 12, 2, 5, 8, 4, 6, 5}, /* 16.8 MHz */ - {125, 2, 2, 5, 8, 4, 6, 5}, /* 19.2 MHz */ - {400, 12, 2, 5, 8, 4, 6, 5}, /* 26 MHz */ - {800, 26, 2, 5, 8, 4, 6, 5}, /* 27 MHz */ - {125, 5, 2, 5, 8, 4, 6, 5} /* 38.4 MHz */ -}; - -static const struct dpll_params per_dpll_params_1536mhz[NUM_SYS_CLKS] = { - {64, 0, 8, 6, 12, 9, 4, 5}, /* 12 MHz */ - {768, 12, 8, 6, 12, 9, 4, 5}, /* 13 MHz */ - {320, 6, 8, 6, 12, 9, 4, 5}, /* 16.8 MHz */ - {40, 0, 8, 6, 12, 9, 4, 5}, /* 19.2 MHz */ - {384, 12, 8, 6, 12, 9, 4, 5}, /* 26 MHz */ - {256, 8, 8, 6, 12, 9, 4, 5}, /* 27 MHz */ - {20, 0, 8, 6, 12, 9, 4, 5} /* 38.4 MHz */ -}; - -static const struct dpll_params iva_dpll_params_1862mhz[NUM_SYS_CLKS] = { - {931, 11, -1, -1, 4, 7, -1, -1}, /* 12 MHz */ - {931, 12, -1, -1, 4, 7, -1, -1}, /* 13 MHz */ - {665, 11, -1, -1, 4, 7, -1, -1}, /* 16.8 MHz */ - {727, 14, -1, -1, 4, 7, -1, -1}, /* 19.2 MHz */ - {931, 25, -1, -1, 4, 7, -1, -1}, /* 26 MHz */ - {931, 26, -1, -1, 4, 7, -1, -1}, /* 27 MHz */ - {412, 16, -1, -1, 4, 7, -1, -1} /* 38.4 MHz */ -}; - -/* ABE M & N values with sys_clk as source */ -static const struct dpll_params - abe_dpll_params_sysclk_196608khz[NUM_SYS_CLKS] = { - {49, 5, 1, 1, -1, -1, -1, -1}, /* 12 MHz */ - {68, 8, 1, 1, -1, -1, -1, -1}, /* 13 MHz */ - {35, 5, 1, 1, -1, -1, -1, -1}, /* 16.8 MHz */ - {46, 8, 1, 1, -1, -1, -1, -1}, /* 19.2 MHz */ - {34, 8, 1, 1, -1, -1, -1, -1}, /* 26 MHz */ - {29, 7, 1, 1, -1, -1, -1, -1}, /* 27 MHz */ - {64, 24, 1, 1, -1, -1, -1, -1} /* 38.4 MHz */ -}; - -/* ABE M & N values with 32K clock as source */ -static const struct dpll_params abe_dpll_params_32k_196608khz = { - 750, 0, 1, 1, -1, -1, -1, -1 -}; - - -static const struct dpll_params usb_dpll_params_1920mhz[NUM_SYS_CLKS] = { - {80, 0, 2, -1, -1, -1, -1, -1}, /* 12 MHz */ - {960, 12, 2, -1, -1, -1, -1, -1}, /* 13 MHz */ - {400, 6, 2, -1, -1, -1, -1, -1}, /* 16.8 MHz */ - {50, 0, 2, -1, -1, -1, -1, -1}, /* 19.2 MHz */ - {480, 12, 2, -1, -1, -1, -1, -1}, /* 26 MHz */ - {320, 8, 2, -1, -1, -1, -1, -1}, /* 27 MHz */ - {25, 0, 2, -1, -1, -1, -1, -1} /* 38.4 MHz */ -}; - -static inline u32 __get_sys_clk_index(void) -{ - u32 ind; - /* - * For ES1 the ROM code calibration of sys clock is not reliable - * due to hw issue. So, use hard-coded value. If this value is not - * correct for any board over-ride this function in board file - * From ES2.0 onwards you will get this information from - * CM_SYS_CLKSEL - */ - if (omap_revision() == OMAP4430_ES1_0) - ind = OMAP_SYS_CLK_IND_38_4_MHZ; - else { - /* SYS_CLKSEL - 1 to match the dpll param array indices */ - ind = (readl(&prcm->cm_sys_clksel) & - CM_SYS_CLKSEL_SYS_CLKSEL_MASK) - 1; - } - return ind; -} - -u32 get_sys_clk_index(void) - __attribute__ ((weak, alias("__get_sys_clk_index"))); - -u32 get_sys_clk_freq(void) -{ - u8 index = get_sys_clk_index(); - return sys_clk_array[index]; -} - -static inline void do_bypass_dpll(u32 *const base) -{ - struct dpll_regs *dpll_regs = (struct dpll_regs *)base; - - clrsetbits_le32(&dpll_regs->cm_clkmode_dpll, - CM_CLKMODE_DPLL_DPLL_EN_MASK, - DPLL_EN_FAST_RELOCK_BYPASS << - CM_CLKMODE_DPLL_EN_SHIFT); -} - -static inline void wait_for_bypass(u32 *const base) -{ - struct dpll_regs *const dpll_regs = (struct dpll_regs *)base; - - if (!wait_on_value(ST_DPLL_CLK_MASK, 0, &dpll_regs->cm_idlest_dpll, - LDELAY)) { - printf("Bypassing DPLL failed %p\n", base); - } -} - -static inline void do_lock_dpll(u32 *const base) -{ - struct dpll_regs *const dpll_regs = (struct dpll_regs *)base; - - 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(u32 *const base) -{ - struct dpll_regs *const dpll_regs = (struct dpll_regs *)base; - - if (!wait_on_value(ST_DPLL_CLK_MASK, ST_DPLL_CLK_MASK, - &dpll_regs->cm_idlest_dpll, LDELAY)) { - printf("DPLL locking failed for %p\n", base); - hang(); - } -} - -static void do_setup_dpll(u32 *const base, const struct dpll_params *params, - u8 lock) -{ - u32 temp; - struct dpll_regs *const dpll_regs = (struct dpll_regs *)base; - - bypass_dpll(base); - - /* Set M & N */ - temp = readl(&dpll_regs->cm_clksel_dpll); - - 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); - - /* Lock */ - if (lock) - do_lock_dpll(base); - - /* 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); - if (params->m7 >= 0) - writel(params->m7, &dpll_regs->cm_div_m7_dpll); - - /* Wait till the DPLL locks */ - if (lock) - wait_for_lock(base); -} - -const struct dpll_params *get_core_dpll_params(void) -{ - u32 sysclk_ind = get_sys_clk_index(); - - switch (omap_revision()) { - case OMAP4430_ES1_0: - return &core_dpll_params_es1_1524mhz[sysclk_ind]; - case OMAP4430_ES2_0: - case OMAP4430_SILICON_ID_INVALID: - /* safest */ - return &core_dpll_params_es2_1600mhz_ddr200mhz[sysclk_ind]; - default: - return &core_dpll_params_1600mhz[sysclk_ind]; - } -} - -u32 omap4_ddr_clk(void) -{ - u32 ddr_clk, sys_clk_khz; - const struct dpll_params *core_dpll_params; - - sys_clk_khz = get_sys_clk_freq() / 1000; - - core_dpll_params = get_core_dpll_params(); - - debug("sys_clk %d\n ", sys_clk_khz * 1000); - - /* Find Core DPLL locked frequency first */ - ddr_clk = sys_clk_khz * 2 * core_dpll_params->m / - (core_dpll_params->n + 1); - /* - * DDR frequency is PHY_ROOT_CLK/2 - * PHY_ROOT_CLK = Fdpll/2/M2 - */ - ddr_clk = ddr_clk / 4 / core_dpll_params->m2; - - ddr_clk *= 1000; /* convert to Hz */ - debug("ddr_clk %d\n ", ddr_clk); - - return ddr_clk; -} - -/* - * Lock MPU dpll - * - * Resulting MPU frequencies: - * 4430 ES1.0 : 600 MHz - * 4430 ES2.x : 792 MHz (OPP Turbo) - * 4460 : 920 MHz (OPP Turbo) - DCC disabled - */ -void configure_mpu_dpll(void) -{ - const struct dpll_params *params; - struct dpll_regs *mpu_dpll_regs; - u32 omap4_rev, sysclk_ind; - - omap4_rev = omap_revision(); - sysclk_ind = get_sys_clk_index(); - - if (omap4_rev == OMAP4430_ES1_0) - params = &mpu_dpll_params_1200mhz[sysclk_ind]; - else if (omap4_rev < OMAP4460_ES1_0) - params = &mpu_dpll_params_1584mhz[sysclk_ind]; - else - params = &mpu_dpll_params_1840mhz[sysclk_ind]; - - /* DCC and clock divider settings for 4460 */ - if (omap4_rev >= OMAP4460_ES1_0) { - mpu_dpll_regs = - (struct dpll_regs *)&prcm->cm_clkmode_dpll_mpu; - bypass_dpll(&prcm->cm_clkmode_dpll_mpu); - clrbits_le32(&prcm->cm_mpu_mpu_clkctrl, - MPU_CLKCTRL_CLKSEL_EMIF_DIV_MODE_MASK); - setbits_le32(&prcm->cm_mpu_mpu_clkctrl, - MPU_CLKCTRL_CLKSEL_ABE_DIV_MODE_MASK); - clrbits_le32(&mpu_dpll_regs->cm_clksel_dpll, - CM_CLKSEL_DCC_EN_MASK); - } - - do_setup_dpll(&prcm->cm_clkmode_dpll_mpu, params, DPLL_LOCK); - debug("MPU DPLL locked\n"); -} - -static void setup_dplls(void) -{ - u32 sysclk_ind, temp; - const struct dpll_params *params; - debug("setup_dplls\n"); - - sysclk_ind = get_sys_clk_index(); - - /* CORE dpll */ - params = get_core_dpll_params(); /* default - safest */ - /* - * Do not lock the core DPLL now. Just set it up. - * Core DPLL will be locked after setting up EMIF - * using the FREQ_UPDATE method(freq_update_core()) - */ - do_setup_dpll(&prcm->cm_clkmode_dpll_core, params, DPLL_NO_LOCK); - /* Set the ratios for CORE_CLK, L3_CLK, L4_CLK */ - temp = (CLKSEL_CORE_X2_DIV_1 << CLKSEL_CORE_SHIFT) | - (CLKSEL_L3_CORE_DIV_2 << CLKSEL_L3_SHIFT) | - (CLKSEL_L4_L3_DIV_2 << CLKSEL_L4_SHIFT); - writel(temp, &prcm->cm_clksel_core); - debug("Core DPLL configured\n"); - - /* lock PER dpll */ - do_setup_dpll(&prcm->cm_clkmode_dpll_per, - &per_dpll_params_1536mhz[sysclk_ind], DPLL_LOCK); - debug("PER DPLL locked\n"); - - /* MPU dpll */ - configure_mpu_dpll(); -} - -static void setup_non_essential_dplls(void) -{ - u32 sys_clk_khz, abe_ref_clk; - u32 sysclk_ind, sd_div, num, den; - const struct dpll_params *params; - - sysclk_ind = get_sys_clk_index(); - sys_clk_khz = get_sys_clk_freq() / 1000; - - /* IVA */ - clrsetbits_le32(&prcm->cm_bypclk_dpll_iva, - CM_BYPCLK_DPLL_IVA_CLKSEL_MASK, DPLL_IVA_CLKSEL_CORE_X2_DIV_2); - - do_setup_dpll(&prcm->cm_clkmode_dpll_iva, - &iva_dpll_params_1862mhz[sysclk_ind], DPLL_LOCK); - - /* - * USB: - * USB dpll is J-type. Need to set DPLL_SD_DIV for jitter correction - * DPLL_SD_DIV = CEILING ([DPLL_MULT/(DPLL_DIV+1)]* CLKINP / 250) - * - where CLKINP is sys_clk in MHz - * Use CLKINP in KHz and adjust the denominator accordingly so - * that we have enough accuracy and at the same time no overflow - */ - params = &usb_dpll_params_1920mhz[sysclk_ind]; - num = params->m * sys_clk_khz; - den = (params->n + 1) * 250 * 1000; - num += den - 1; - sd_div = num / den; - clrsetbits_le32(&prcm->cm_clksel_dpll_usb, - CM_CLKSEL_DPLL_DPLL_SD_DIV_MASK, - sd_div << CM_CLKSEL_DPLL_DPLL_SD_DIV_SHIFT); - - /* Now setup the dpll with the regular function */ - do_setup_dpll(&prcm->cm_clkmode_dpll_usb, params, DPLL_LOCK); - -#ifdef CONFIG_SYS_OMAP4_ABE_SYSCK - params = &abe_dpll_params_sysclk_196608khz[sysclk_ind]; - abe_ref_clk = CM_ABE_PLL_REF_CLKSEL_CLKSEL_SYSCLK; -#else - params = &abe_dpll_params_32k_196608khz; - abe_ref_clk = CM_ABE_PLL_REF_CLKSEL_CLKSEL_32KCLK; - /* - * We need to enable some additional options to achieve - * 196.608MHz from 32768 Hz - */ - setbits_le32(&prcm->cm_clkmode_dpll_abe, - CM_CLKMODE_DPLL_DRIFTGUARD_EN_MASK| - CM_CLKMODE_DPLL_RELOCK_RAMP_EN_MASK| - CM_CLKMODE_DPLL_LPMODE_EN_MASK| - CM_CLKMODE_DPLL_REGM4XEN_MASK); - /* Spend 4 REFCLK cycles at each stage */ - clrsetbits_le32(&prcm->cm_clkmode_dpll_abe, - CM_CLKMODE_DPLL_RAMP_RATE_MASK, - 1 << CM_CLKMODE_DPLL_RAMP_RATE_SHIFT); -#endif - - /* Select the right reference clk */ - clrsetbits_le32(&prcm->cm_abe_pll_ref_clksel, - CM_ABE_PLL_REF_CLKSEL_CLKSEL_MASK, - abe_ref_clk << CM_ABE_PLL_REF_CLKSEL_CLKSEL_SHIFT); - /* Lock the dpll */ - do_setup_dpll(&prcm->cm_clkmode_dpll_abe, params, DPLL_LOCK); -} - -static void do_scale_tps62361(u32 reg, u32 volt_mv) -{ - u32 temp, step; - - step = volt_mv - TPS62361_BASE_VOLT_MV; - step /= 10; - - /* - * Select SET1 in TPS62361: - * VSEL1 is grounded on board. So the following selects - * VSEL1 = 0 and VSEL0 = 1 - */ - gpio_direction_output(TPS62361_VSEL0_GPIO, 0); - gpio_set_value(TPS62361_VSEL0_GPIO, 1); - - temp = TPS62361_I2C_SLAVE_ADDR | - (reg << PRM_VC_VAL_BYPASS_REGADDR_SHIFT) | - (step << PRM_VC_VAL_BYPASS_DATA_SHIFT) | - PRM_VC_VAL_BYPASS_VALID_BIT; - debug("do_scale_tps62361: volt - %d step - 0x%x\n", volt_mv, step); - - writel(temp, &prcm->prm_vc_val_bypass); - if (!wait_on_value(PRM_VC_VAL_BYPASS_VALID_BIT, 0, - &prcm->prm_vc_val_bypass, LDELAY)) { - puts("Scaling voltage failed for vdd_mpu from TPS\n"); - } -} - -static void do_scale_vcore(u32 vcore_reg, u32 volt_mv) -{ - u32 temp, offset_code; - u32 step = 12660; /* 12.66 mV represented in uV */ - u32 offset = volt_mv; - - /* convert to uV for better accuracy in the calculations */ - offset *= 1000; - - if (omap_revision() == OMAP4430_ES1_0) - offset -= PHOENIX_SMPS_BASE_VOLT_STD_MODE_UV; - else - offset -= PHOENIX_SMPS_BASE_VOLT_STD_MODE_WITH_OFFSET_UV; - - offset_code = (offset + step - 1) / step; - /* The code starts at 1 not 0 */ - offset_code++; - - debug("do_scale_vcore: volt - %d offset_code - 0x%x\n", volt_mv, - offset_code); - - temp = SMPS_I2C_SLAVE_ADDR | - (vcore_reg << PRM_VC_VAL_BYPASS_REGADDR_SHIFT) | - (offset_code << PRM_VC_VAL_BYPASS_DATA_SHIFT) | - PRM_VC_VAL_BYPASS_VALID_BIT; - writel(temp, &prcm->prm_vc_val_bypass); - if (!wait_on_value(PRM_VC_VAL_BYPASS_VALID_BIT, 0, - &prcm->prm_vc_val_bypass, LDELAY)) { - printf("Scaling voltage failed for 0x%x\n", vcore_reg); - } -} - -/* - * Setup the voltages for vdd_mpu, vdd_core, and vdd_iva - * We set the maximum voltages allowed here because Smart-Reflex is not - * enabled in bootloader. Voltage initialization in the kernel will set - * these to the nominal values after enabling Smart-Reflex - */ -static void scale_vcores(void) -{ - u32 volt, sys_clk_khz, cycles_hi, cycles_low, temp, omap4_rev; - - sys_clk_khz = get_sys_clk_freq() / 1000; - - /* - * Setup the dedicated I2C controller for Voltage Control - * I2C clk - high period 40% low period 60% - */ - cycles_hi = sys_clk_khz * 4 / PRM_VC_I2C_CHANNEL_FREQ_KHZ / 10; - cycles_low = sys_clk_khz * 6 / PRM_VC_I2C_CHANNEL_FREQ_KHZ / 10; - /* values to be set in register - less by 5 & 7 respectively */ - cycles_hi -= 5; - cycles_low -= 7; - temp = (cycles_hi << PRM_VC_CFG_I2C_CLK_SCLH_SHIFT) | - (cycles_low << PRM_VC_CFG_I2C_CLK_SCLL_SHIFT); - writel(temp, &prcm->prm_vc_cfg_i2c_clk); - - /* Disable high speed mode and all advanced features */ - writel(0x0, &prcm->prm_vc_cfg_i2c_mode); - - omap4_rev = omap_revision(); - /* TPS - supplies vdd_mpu on 4460 */ - if (omap4_rev >= OMAP4460_ES1_0) { - volt = 1430; - do_scale_tps62361(TPS62361_REG_ADDR_SET1, volt); - } - - /* - * VCORE 1 - * - * 4430 : supplies vdd_mpu - * Setting a high voltage for Nitro mode as smart reflex is not enabled. - * We use the maximum possible value in the AVS range because the next - * higher voltage in the discrete range (code >= 0b111010) is way too - * high - * - * 4460 : supplies vdd_core - */ - if (omap4_rev < OMAP4460_ES1_0) { - volt = 1417; - do_scale_vcore(SMPS_REG_ADDR_VCORE1, volt); - } else { - volt = 1200; - do_scale_vcore(SMPS_REG_ADDR_VCORE1, volt); - } - - /* VCORE 2 - supplies vdd_iva */ - volt = 1200; - do_scale_vcore(SMPS_REG_ADDR_VCORE2, volt); - - /* - * VCORE 3 - * 4430 : supplies vdd_core - * 4460 : not connected - */ - if (omap4_rev < OMAP4460_ES1_0) { - volt = 1200; - do_scale_vcore(SMPS_REG_ADDR_VCORE3, volt); - } -} - -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); -} - -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); -} - -/* - * Enable essential clock domains, modules and - * do some additional special settings needed - */ -static void enable_basic_clocks(void) -{ - u32 i, max = 100, wait_for_enable = 1; - u32 *const clk_domains_essential[] = { - &prcm->cm_l4per_clkstctrl, - &prcm->cm_l3init_clkstctrl, - &prcm->cm_memif_clkstctrl, - &prcm->cm_l4cfg_clkstctrl, - 0 - }; - - u32 *const clk_modules_hw_auto_essential[] = { - &prcm->cm_wkup_gpio1_clkctrl, - &prcm->cm_l4per_gpio2_clkctrl, - &prcm->cm_l4per_gpio3_clkctrl, - &prcm->cm_l4per_gpio4_clkctrl, - &prcm->cm_l4per_gpio5_clkctrl, - &prcm->cm_l4per_gpio6_clkctrl, - &prcm->cm_memif_emif_1_clkctrl, - &prcm->cm_memif_emif_2_clkctrl, - &prcm->cm_l3init_hsusbotg_clkctrl, - &prcm->cm_l3init_usbphy_clkctrl, - &prcm->cm_l4cfg_l4_cfg_clkctrl, - 0 - }; - - u32 *const clk_modules_explicit_en_essential[] = { - &prcm->cm_l4per_gptimer2_clkctrl, - &prcm->cm_l3init_hsmmc1_clkctrl, - &prcm->cm_l3init_hsmmc2_clkctrl, - &prcm->cm_l4per_mcspi1_clkctrl, - &prcm->cm_wkup_gptimer1_clkctrl, - &prcm->cm_l4per_i2c1_clkctrl, - &prcm->cm_l4per_i2c2_clkctrl, - &prcm->cm_l4per_i2c3_clkctrl, - &prcm->cm_l4per_i2c4_clkctrl, - &prcm->cm_wkup_wdtimer2_clkctrl, - &prcm->cm_l4per_uart3_clkctrl, - 0 - }; - - /* Enable optional additional functional clock for GPIO4 */ - setbits_le32(&prcm->cm_l4per_gpio4_clkctrl, - GPIO4_CLKCTRL_OPTFCLKEN_MASK); - - /* Enable 96 MHz clock for MMC1 & MMC2 */ - setbits_le32(&prcm->cm_l3init_hsmmc1_clkctrl, - HSMMC_CLKCTRL_CLKSEL_MASK); - setbits_le32(&prcm->cm_l3init_hsmmc2_clkctrl, - HSMMC_CLKCTRL_CLKSEL_MASK); - - /* Select 32KHz clock as the source of GPTIMER1 */ - setbits_le32(&prcm->cm_wkup_gptimer1_clkctrl, - GPTIMER1_CLKCTRL_CLKSEL_MASK); - - /* Enable optional 48M functional clock for USB PHY */ - setbits_le32(&prcm->cm_l3init_usbphy_clkctrl, - USBPHY_CLKCTRL_OPTFCLKEN_PHY_48M_MASK); - - /* Put the clock domains in SW_WKUP mode */ - for (i = 0; (i < max) && clk_domains_essential[i]; i++) { - enable_clock_domain(clk_domains_essential[i], - CD_CLKCTRL_CLKTRCTRL_SW_WKUP); - } - - /* Clock modules that need to be put in HW_AUTO */ - for (i = 0; (i < max) && clk_modules_hw_auto_essential[i]; i++) { - enable_clock_module(clk_modules_hw_auto_essential[i], - MODULE_CLKCTRL_MODULEMODE_HW_AUTO, - wait_for_enable); - }; - - /* Clock modules that need to be put in SW_EXPLICIT_EN mode */ - for (i = 0; (i < max) && clk_modules_explicit_en_essential[i]; i++) { - enable_clock_module(clk_modules_explicit_en_essential[i], - MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN, - wait_for_enable); - }; - - /* Put the clock domains in HW_AUTO mode now */ - for (i = 0; (i < max) && clk_domains_essential[i]; i++) { - enable_clock_domain(clk_domains_essential[i], - CD_CLKCTRL_CLKTRCTRL_HW_AUTO); - } -} - -/* - * Enable non-essential clock domains, modules and - * do some additional special settings needed - */ -static void enable_non_essential_clocks(void) -{ - u32 i, max = 100, wait_for_enable = 0; - u32 *const clk_domains_non_essential[] = { - &prcm->cm_mpu_m3_clkstctrl, - &prcm->cm_ivahd_clkstctrl, - &prcm->cm_dsp_clkstctrl, - &prcm->cm_dss_clkstctrl, - &prcm->cm_sgx_clkstctrl, - &prcm->cm1_abe_clkstctrl, - &prcm->cm_c2c_clkstctrl, - &prcm->cm_cam_clkstctrl, - &prcm->cm_dss_clkstctrl, - &prcm->cm_sdma_clkstctrl, - 0 - }; - - u32 *const clk_modules_hw_auto_non_essential[] = { - &prcm->cm_mpu_m3_mpu_m3_clkctrl, - &prcm->cm_ivahd_ivahd_clkctrl, - &prcm->cm_ivahd_sl2_clkctrl, - &prcm->cm_dsp_dsp_clkctrl, - &prcm->cm_l3_2_gpmc_clkctrl, - &prcm->cm_l3instr_l3_3_clkctrl, - &prcm->cm_l3instr_l3_instr_clkctrl, - &prcm->cm_l3instr_intrconn_wp1_clkctrl, - &prcm->cm_l3init_hsi_clkctrl, - &prcm->cm_l3init_hsusbtll_clkctrl, - 0 - }; - - u32 *const clk_modules_explicit_en_non_essential[] = { - &prcm->cm1_abe_aess_clkctrl, - &prcm->cm1_abe_pdm_clkctrl, - &prcm->cm1_abe_dmic_clkctrl, - &prcm->cm1_abe_mcasp_clkctrl, - &prcm->cm1_abe_mcbsp1_clkctrl, - &prcm->cm1_abe_mcbsp2_clkctrl, - &prcm->cm1_abe_mcbsp3_clkctrl, - &prcm->cm1_abe_slimbus_clkctrl, - &prcm->cm1_abe_timer5_clkctrl, - &prcm->cm1_abe_timer6_clkctrl, - &prcm->cm1_abe_timer7_clkctrl, - &prcm->cm1_abe_timer8_clkctrl, - &prcm->cm1_abe_wdt3_clkctrl, - &prcm->cm_l4per_gptimer9_clkctrl, - &prcm->cm_l4per_gptimer10_clkctrl, - &prcm->cm_l4per_gptimer11_clkctrl, - &prcm->cm_l4per_gptimer3_clkctrl, - &prcm->cm_l4per_gptimer4_clkctrl, - &prcm->cm_l4per_hdq1w_clkctrl, - &prcm->cm_l4per_mcbsp4_clkctrl, - &prcm->cm_l4per_mcspi2_clkctrl, - &prcm->cm_l4per_mcspi3_clkctrl, - &prcm->cm_l4per_mcspi4_clkctrl, - &prcm->cm_l4per_mmcsd3_clkctrl, - &prcm->cm_l4per_mmcsd4_clkctrl, - &prcm->cm_l4per_mmcsd5_clkctrl, - &prcm->cm_l4per_uart1_clkctrl, - &prcm->cm_l4per_uart2_clkctrl, - &prcm->cm_l4per_uart4_clkctrl, - &prcm->cm_wkup_keyboard_clkctrl, - &prcm->cm_wkup_wdtimer2_clkctrl, - &prcm->cm_cam_iss_clkctrl, - &prcm->cm_cam_fdif_clkctrl, - &prcm->cm_dss_dss_clkctrl, - &prcm->cm_sgx_sgx_clkctrl, - &prcm->cm_l3init_hsusbhost_clkctrl, - &prcm->cm_l3init_fsusb_clkctrl, - 0 - }; - - /* Enable optional functional clock for ISS */ - setbits_le32(&prcm->cm_cam_iss_clkctrl, ISS_CLKCTRL_OPTFCLKEN_MASK); - - /* Enable all optional functional clocks of DSS */ - setbits_le32(&prcm->cm_dss_dss_clkctrl, DSS_CLKCTRL_OPTFCLKEN_MASK); - - - /* Put the clock domains in SW_WKUP mode */ - for (i = 0; (i < max) && clk_domains_non_essential[i]; i++) { - enable_clock_domain(clk_domains_non_essential[i], - CD_CLKCTRL_CLKTRCTRL_SW_WKUP); - } - - /* Clock modules that need to be put in HW_AUTO */ - for (i = 0; (i < max) && clk_modules_hw_auto_non_essential[i]; i++) { - enable_clock_module(clk_modules_hw_auto_non_essential[i], - MODULE_CLKCTRL_MODULEMODE_HW_AUTO, - wait_for_enable); - }; - - /* Clock modules that need to be put in SW_EXPLICIT_EN mode */ - for (i = 0; (i < max) && clk_modules_explicit_en_non_essential[i]; - i++) { - enable_clock_module(clk_modules_explicit_en_non_essential[i], - MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN, - wait_for_enable); - }; - - /* Put the clock domains in HW_AUTO mode now */ - for (i = 0; (i < max) && clk_domains_non_essential[i]; i++) { - enable_clock_domain(clk_domains_non_essential[i], - CD_CLKCTRL_CLKTRCTRL_HW_AUTO); - } - - /* Put camera module in no sleep mode */ - clrsetbits_le32(&prcm->cm_cam_clkstctrl, MODULE_CLKCTRL_MODULEMODE_MASK, - CD_CLKCTRL_CLKTRCTRL_NO_SLEEP << - MODULE_CLKCTRL_MODULEMODE_SHIFT); -} - - -void freq_update_core(void) -{ - u32 freq_config1 = 0; - const struct dpll_params *core_dpll_params; - - core_dpll_params = get_core_dpll_params(); - /* Put EMIF clock domain in sw wakeup mode */ - enable_clock_domain(&prcm->cm_memif_clkstctrl, - CD_CLKCTRL_CLKTRCTRL_SW_WKUP); - wait_for_clk_enable(&prcm->cm_memif_emif_1_clkctrl); - wait_for_clk_enable(&prcm->cm_memif_emif_2_clkctrl); - - freq_config1 = SHADOW_FREQ_CONFIG1_FREQ_UPDATE_MASK | - SHADOW_FREQ_CONFIG1_DLL_RESET_MASK; - - freq_config1 |= (DPLL_EN_LOCK << SHADOW_FREQ_CONFIG1_DPLL_EN_SHIFT) & - SHADOW_FREQ_CONFIG1_DPLL_EN_MASK; - - freq_config1 |= (core_dpll_params->m2 << - SHADOW_FREQ_CONFIG1_M2_DIV_SHIFT) & - SHADOW_FREQ_CONFIG1_M2_DIV_MASK; - - writel(freq_config1, &prcm->cm_shadow_freq_config1); - if (!wait_on_value(SHADOW_FREQ_CONFIG1_FREQ_UPDATE_MASK, 0, - &prcm->cm_shadow_freq_config1, LDELAY)) { - puts("FREQ UPDATE procedure failed!!"); - hang(); - } - - /* Put EMIF clock domain back in hw auto mode */ - enable_clock_domain(&prcm->cm_memif_clkstctrl, - CD_CLKCTRL_CLKTRCTRL_HW_AUTO); - wait_for_clk_enable(&prcm->cm_memif_emif_1_clkctrl); - wait_for_clk_enable(&prcm->cm_memif_emif_2_clkctrl); -} - -void bypass_dpll(u32 *const base) -{ - do_bypass_dpll(base); - wait_for_bypass(base); -} - -void lock_dpll(u32 *const base) -{ - do_lock_dpll(base); - wait_for_lock(base); -} - -void setup_clocks_for_console(void) -{ - /* Do not add any spl_debug prints in this function */ - clrsetbits_le32(&prcm->cm_l4per_clkstctrl, CD_CLKCTRL_CLKTRCTRL_MASK, - CD_CLKCTRL_CLKTRCTRL_SW_WKUP << - CD_CLKCTRL_CLKTRCTRL_SHIFT); - - /* Enable all UARTs - console will be on one of them */ - clrsetbits_le32(&prcm->cm_l4per_uart1_clkctrl, - MODULE_CLKCTRL_MODULEMODE_MASK, - MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN << - MODULE_CLKCTRL_MODULEMODE_SHIFT); - - clrsetbits_le32(&prcm->cm_l4per_uart2_clkctrl, - MODULE_CLKCTRL_MODULEMODE_MASK, - MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN << - MODULE_CLKCTRL_MODULEMODE_SHIFT); - - clrsetbits_le32(&prcm->cm_l4per_uart3_clkctrl, - MODULE_CLKCTRL_MODULEMODE_MASK, - MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN << - MODULE_CLKCTRL_MODULEMODE_SHIFT); - - clrsetbits_le32(&prcm->cm_l4per_uart3_clkctrl, - MODULE_CLKCTRL_MODULEMODE_MASK, - MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN << - MODULE_CLKCTRL_MODULEMODE_SHIFT); - - clrsetbits_le32(&prcm->cm_l4per_clkstctrl, CD_CLKCTRL_CLKTRCTRL_MASK, - CD_CLKCTRL_CLKTRCTRL_HW_AUTO << - CD_CLKCTRL_CLKTRCTRL_SHIFT); -} - -void prcm_init(void) -{ - switch (omap4_hw_init_context()) { - case OMAP_INIT_CONTEXT_SPL: - case OMAP_INIT_CONTEXT_UBOOT_FROM_NOR: - case OMAP_INIT_CONTEXT_UBOOT_AFTER_CH: - enable_basic_clocks(); - scale_vcores(); - setup_dplls(); - setup_non_essential_dplls(); - enable_non_essential_clocks(); - break; - default: - break; - } -} diff --git a/arch/arm/cpu/armv7/omap4/emif.c b/arch/arm/cpu/armv7/omap4/emif.c deleted file mode 100644 index 988b205..0000000 --- a/arch/arm/cpu/armv7/omap4/emif.c +++ /dev/null @@ -1,1254 +0,0 @@ -/* - * EMIF programming - * - * (C) Copyright 2010 - * Texas Instruments, <www.ti.com> - * - * Aneesh V <aneesh@ti.com> - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <asm/arch/emif.h> -#include <asm/arch/clocks.h> -#include <asm/arch/sys_proto.h> -#include <asm/omap_common.h> -#include <asm/utils.h> - -static inline u32 emif_num(u32 base) -{ - if (base == OMAP44XX_EMIF1) - return 1; - else if (base == OMAP44XX_EMIF2) - return 2; - else - return 0; -} - -static inline u32 get_mr(u32 base, u32 cs, u32 mr_addr) -{ - u32 mr; - struct emif_reg_struct *emif = (struct emif_reg_struct *)base; - - mr_addr |= cs << OMAP44XX_REG_CS_SHIFT; - writel(mr_addr, &emif->emif_lpddr2_mode_reg_cfg); - if (omap_revision() == OMAP4430_ES2_0) - mr = readl(&emif->emif_lpddr2_mode_reg_data_es2); - else - mr = readl(&emif->emif_lpddr2_mode_reg_data); - debug("get_mr: EMIF%d cs %d mr %08x val 0x%x\n", emif_num(base), - cs, mr_addr, mr); - return mr; -} - -static inline void set_mr(u32 base, u32 cs, u32 mr_addr, u32 mr_val) -{ - struct emif_reg_struct *emif = (struct emif_reg_struct *)base; - - mr_addr |= cs << OMAP44XX_REG_CS_SHIFT; - writel(mr_addr, &emif->emif_lpddr2_mode_reg_cfg); - writel(mr_val, &emif->emif_lpddr2_mode_reg_data); -} - -void emif_reset_phy(u32 base) -{ - struct emif_reg_struct *emif = (struct emif_reg_struct *)base; - u32 iodft; - - iodft = readl(&emif->emif_iodft_tlgc); - iodft |= OMAP44XX_REG_RESET_PHY_MASK; - writel(iodft, &emif->emif_iodft_tlgc); -} - -static void do_lpddr2_init(u32 base, u32 cs) -{ - u32 mr_addr; - - /* Wait till device auto initialization is complete */ - while (get_mr(base, cs, LPDDR2_MR0) & LPDDR2_MR0_DAI_MASK) - ; - set_mr(base, cs, LPDDR2_MR10, MR10_ZQ_ZQINIT); - /* - * tZQINIT = 1 us - * Enough loops assuming a maximum of 2GHz - */ - sdelay(2000); - set_mr(base, cs, LPDDR2_MR1, MR1_BL_8_BT_SEQ_WRAP_EN_NWR_3); - set_mr(base, cs, LPDDR2_MR16, MR16_REF_FULL_ARRAY); - /* - * Enable refresh along with writing MR2 - * Encoding of RL in MR2 is (RL - 2) - */ - mr_addr = LPDDR2_MR2 | OMAP44XX_REG_REFRESH_EN_MASK; - set_mr(base, cs, mr_addr, RL_FINAL - 2); -} - -static void lpddr2_init(u32 base, const struct emif_regs *regs) -{ - struct emif_reg_struct *emif = (struct emif_reg_struct *)base; - - /* Not NVM */ - clrbits_le32(&emif->emif_lpddr2_nvm_config, OMAP44XX_REG_CS1NVMEN_MASK); - - /* - * Keep REG_INITREF_DIS = 1 to prevent re-initialization of SDRAM - * when EMIF_SDRAM_CONFIG register is written - */ - setbits_le32(&emif->emif_sdram_ref_ctrl, OMAP44XX_REG_INITREF_DIS_MASK); - - /* - * Set the SDRAM_CONFIG and PHY_CTRL for the - * un-locked frequency & default RL - */ - writel(regs->sdram_config_init, &emif->emif_sdram_config); - writel(regs->emif_ddr_phy_ctlr_1_init, &emif->emif_ddr_phy_ctrl_1); - - do_lpddr2_init(base, CS0); - if (regs->sdram_config & OMAP44XX_REG_EBANK_MASK) - do_lpddr2_init(base, CS1); - - writel(regs->sdram_config, &emif->emif_sdram_config); - writel(regs->emif_ddr_phy_ctlr_1, &emif->emif_ddr_phy_ctrl_1); - - /* Enable refresh now */ - clrbits_le32(&emif->emif_sdram_ref_ctrl, OMAP44XX_REG_INITREF_DIS_MASK); - -} - -static void emif_update_timings(u32 base, const struct emif_regs *regs) -{ - struct emif_reg_struct *emif = (struct emif_reg_struct *)base; - - writel(regs->ref_ctrl, &emif->emif_sdram_ref_ctrl_shdw); - writel(regs->sdram_tim1, &emif->emif_sdram_tim_1_shdw); - writel(regs->sdram_tim2, &emif->emif_sdram_tim_2_shdw); - writel(regs->sdram_tim3, &emif->emif_sdram_tim_3_shdw); - if (omap_revision() == OMAP4430_ES1_0) { - /* ES1 bug EMIF should be in force idle during freq_update */ - writel(0, &emif->emif_pwr_mgmt_ctrl); - } else { - writel(EMIF_PWR_MGMT_CTRL, &emif->emif_pwr_mgmt_ctrl); - writel(EMIF_PWR_MGMT_CTRL_SHDW, &emif->emif_pwr_mgmt_ctrl_shdw); - } - writel(regs->read_idle_ctrl, &emif->emif_read_idlectrl_shdw); - writel(regs->zq_config, &emif->emif_zq_config); - writel(regs->temp_alert_config, &emif->emif_temp_alert_config); - writel(regs->emif_ddr_phy_ctlr_1, &emif->emif_ddr_phy_ctrl_1_shdw); - - if (omap_revision() >= OMAP4460_ES1_0) { - writel(EMIF_L3_CONFIG_VAL_SYS_10_MPU_3_LL_0, - &emif->emif_l3_config); - } else { - writel(EMIF_L3_CONFIG_VAL_SYS_10_LL_0, - &emif->emif_l3_config); - } -} - -#ifndef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS -#define print_timing_reg(reg) debug(#reg" - 0x%08x\n", (reg)) - -static u32 *const T_num = (u32 *)OMAP4_SRAM_SCRATCH_EMIF_T_NUM; -static u32 *const T_den = (u32 *)OMAP4_SRAM_SCRATCH_EMIF_T_DEN; -static u32 *const emif_sizes = (u32 *)OMAP4_SRAM_SCRATCH_EMIF_SIZE; - -/* - * Organization and refresh requirements for LPDDR2 devices of different - * types and densities. Derived from JESD209-2 section 2.4 - */ -const struct lpddr2_addressing addressing_table[] = { - /* Banks tREFIx10 rowx32,rowx16 colx32,colx16 density */ - {BANKS4, T_REFI_15_6, {ROW_12, ROW_12}, {COL_7, COL_8} },/*64M */ - {BANKS4, T_REFI_15_6, {ROW_12, ROW_12}, {COL_8, COL_9} },/*128M */ - {BANKS4, T_REFI_7_8, {ROW_13, ROW_13}, {COL_8, COL_9} },/*256M */ - {BANKS4, T_REFI_7_8, {ROW_13, ROW_13}, {COL_9, COL_10} },/*512M */ - {BANKS8, T_REFI_7_8, {ROW_13, ROW_13}, {COL_9, COL_10} },/*1GS4 */ - {BANKS8, T_REFI_3_9, {ROW_14, ROW_14}, {COL_9, COL_10} },/*2GS4 */ - {BANKS8, T_REFI_3_9, {ROW_14, ROW_14}, {COL_10, COL_11} },/*4G */ - {BANKS8, T_REFI_3_9, {ROW_15, ROW_15}, {COL_10, COL_11} },/*8G */ - {BANKS4, T_REFI_7_8, {ROW_14, ROW_14}, {COL_9, COL_10} },/*1GS2 */ - {BANKS4, T_REFI_3_9, {ROW_15, ROW_15}, {COL_9, COL_10} },/*2GS2 */ -}; - -static const u32 lpddr2_density_2_size_in_mbytes[] = { - 8, /* 64Mb */ - 16, /* 128Mb */ - 32, /* 256Mb */ - 64, /* 512Mb */ - 128, /* 1Gb */ - 256, /* 2Gb */ - 512, /* 4Gb */ - 1024, /* 8Gb */ - 2048, /* 16Gb */ - 4096 /* 32Gb */ -}; - -/* - * Calculate the period of DDR clock from frequency value and set the - * denominator and numerator in global variables for easy access later - */ -static void set_ddr_clk_period(u32 freq) -{ - /* - * period = 1/freq - * period_in_ns = 10^9/freq - */ - *T_num = 1000000000; - *T_den = freq; - cancel_out(T_num, T_den, 200); - -} - -/* - * Convert time in nano seconds to number of cycles of DDR clock - */ -static inline u32 ns_2_cycles(u32 ns) -{ - return ((ns * (*T_den)) + (*T_num) - 1) / (*T_num); -} - -/* - * ns_2_cycles with the difference that the time passed is 2 times the actual - * value(to avoid fractions). The cycles returned is for the original value of - * the timing parameter - */ -static inline u32 ns_x2_2_cycles(u32 ns) -{ - return ((ns * (*T_den)) + (*T_num) * 2 - 1) / ((*T_num) * 2); -} - -/* - * Find addressing table index based on the device's type(S2 or S4) and - * density - */ -s8 addressing_table_index(u8 type, u8 density, u8 width) -{ - u8 index; - if ((density > LPDDR2_DENSITY_8Gb) || (width == LPDDR2_IO_WIDTH_8)) - return -1; - - /* - * Look at the way ADDR_TABLE_INDEX* values have been defined - * in emif.h compared to LPDDR2_DENSITY_* values - * The table is layed out in the increasing order of density - * (ignoring type). The exceptions 1GS2 and 2GS2 have been placed - * at the end - */ - if ((type == LPDDR2_TYPE_S2) && (density == LPDDR2_DENSITY_1Gb)) - index = ADDR_TABLE_INDEX1GS2; - else if ((type == LPDDR2_TYPE_S2) && (density == LPDDR2_DENSITY_2Gb)) - index = ADDR_TABLE_INDEX2GS2; - else - index = density; - - debug("emif: addressing table index %d\n", index); - - return index; -} - -/* - * Find the the right timing table from the array of timing - * tables of the device using DDR clock frequency - */ -static const struct lpddr2_ac_timings *get_timings_table(const struct - lpddr2_ac_timings const *const *device_timings, - u32 freq) -{ - u32 i, temp, freq_nearest; - const struct lpddr2_ac_timings *timings = 0; - - emif_assert(freq <= MAX_LPDDR2_FREQ); - emif_assert(device_timings); - - /* - * Start with the maximum allowed frequency - that is always safe - */ - freq_nearest = MAX_LPDDR2_FREQ; - /* - * Find the timings table that has the max frequency value: - * i. Above or equal to the DDR frequency - safe - * ii. The lowest that satisfies condition (i) - optimal - */ - for (i = 0; (i < MAX_NUM_SPEEDBINS) && device_timings[i]; i++) { - temp = device_timings[i]->max_freq; - if ((temp >= freq) && (temp <= freq_nearest)) { - freq_nearest = temp; - timings = device_timings[i]; - } - } - debug("emif: timings table: %d\n", freq_nearest); - return timings; -} - -/* - * Finds the value of emif_sdram_config_reg - * All parameters are programmed based on the device on CS0. - * If there is a device on CS1, it will be same as that on CS0 or - * it will be NVM. We don't support NVM yet. - * If cs1_device pointer is NULL it is assumed that there is no device - * on CS1 - */ -static u32 get_sdram_config_reg(const struct lpddr2_device_details *cs0_device, - const struct lpddr2_device_details *cs1_device, - const struct lpddr2_addressing *addressing, - u8 RL) -{ - u32 config_reg = 0; - - config_reg |= (cs0_device->type + 4) << OMAP44XX_REG_SDRAM_TYPE_SHIFT; - config_reg |= EMIF_INTERLEAVING_POLICY_MAX_INTERLEAVING << - OMAP44XX_REG_IBANK_POS_SHIFT; - - config_reg |= cs0_device->io_width << OMAP44XX_REG_NARROW_MODE_SHIFT; - - config_reg |= RL << OMAP44XX_REG_CL_SHIFT; - - config_reg |= addressing->row_sz[cs0_device->io_width] << - OMAP44XX_REG_ROWSIZE_SHIFT; - - config_reg |= addressing->num_banks << OMAP44XX_REG_IBANK_SHIFT; - - config_reg |= (cs1_device ? EBANK_CS1_EN : EBANK_CS1_DIS) << - OMAP44XX_REG_EBANK_SHIFT; - - config_reg |= addressing->col_sz[cs0_device->io_width] << - OMAP44XX_REG_PAGESIZE_SHIFT; - - return config_reg; -} - -static u32 get_sdram_ref_ctrl(u32 freq, - const struct lpddr2_addressing *addressing) -{ - u32 ref_ctrl = 0, val = 0, freq_khz; - freq_khz = freq / 1000; - /* - * refresh rate to be set is 'tREFI * freq in MHz - * division by 10000 to account for khz and x10 in t_REFI_us_x10 - */ - val = addressing->t_REFI_us_x10 * freq_khz / 10000; - ref_ctrl |= val << OMAP44XX_REG_REFRESH_RATE_SHIFT; - - return ref_ctrl; -} - -static u32 get_sdram_tim_1_reg(const struct lpddr2_ac_timings *timings, - const struct lpddr2_min_tck *min_tck, - const struct lpddr2_addressing *addressing) -{ - u32 tim1 = 0, val = 0; - val = max(min_tck->tWTR, ns_x2_2_cycles(timings->tWTRx2)) - 1; - tim1 |= val << OMAP44XX_REG_T_WTR_SHIFT; - - if (addressing->num_banks == BANKS8) - val = (timings->tFAW * (*T_den) + 4 * (*T_num) - 1) / - (4 * (*T_num)) - 1; - else - val = max(min_tck->tRRD, ns_2_cycles(timings->tRRD)) - 1; - - tim1 |= val << OMAP44XX_REG_T_RRD_SHIFT; - - val = ns_2_cycles(timings->tRASmin + timings->tRPab) - 1; - tim1 |= val << OMAP44XX_REG_T_RC_SHIFT; - - val = max(min_tck->tRAS_MIN, ns_2_cycles(timings->tRASmin)) - 1; - tim1 |= val << OMAP44XX_REG_T_RAS_SHIFT; - - val = max(min_tck->tWR, ns_2_cycles(timings->tWR)) - 1; - tim1 |= val << OMAP44XX_REG_T_WR_SHIFT; - - val = max(min_tck->tRCD, ns_2_cycles(timings->tRCD)) - 1; - tim1 |= val << OMAP44XX_REG_T_RCD_SHIFT; - - val = max(min_tck->tRP_AB, ns_2_cycles(timings->tRPab)) - 1; - tim1 |= val << OMAP44XX_REG_T_RP_SHIFT; - - return tim1; -} - -static u32 get_sdram_tim_2_reg(const struct lpddr2_ac_timings *timings, - const struct lpddr2_min_tck *min_tck) -{ - u32 tim2 = 0, val = 0; - val = max(min_tck->tCKE, timings->tCKE) - 1; - tim2 |= val << OMAP44XX_REG_T_CKE_SHIFT; - - val = max(min_tck->tRTP, ns_x2_2_cycles(timings->tRTPx2)) - 1; - tim2 |= val << OMAP44XX_REG_T_RTP_SHIFT; - - /* - * tXSRD = tRFCab + 10 ns. XSRD and XSNR should have the - * same value - */ - val = ns_2_cycles(timings->tXSR) - 1; - tim2 |= val << OMAP44XX_REG_T_XSRD_SHIFT; - tim2 |= val << OMAP44XX_REG_T_XSNR_SHIFT; - - val = max(min_tck->tXP, ns_x2_2_cycles(timings->tXPx2)) - 1; - tim2 |= val << OMAP44XX_REG_T_XP_SHIFT; - - return tim2; -} - -static u32 get_sdram_tim_3_reg(const struct lpddr2_ac_timings *timings, - const struct lpddr2_min_tck *min_tck, - const struct lpddr2_addressing *addressing) -{ - u32 tim3 = 0, val = 0; - val = min(timings->tRASmax * 10 / addressing->t_REFI_us_x10 - 1, 0xF); - tim3 |= val << OMAP44XX_REG_T_RAS_MAX_SHIFT; - - val = ns_2_cycles(timings->tRFCab) - 1; - tim3 |= val << OMAP44XX_REG_T_RFC_SHIFT; - - val = ns_x2_2_cycles(timings->tDQSCKMAXx2) - 1; - tim3 |= val << OMAP44XX_REG_T_TDQSCKMAX_SHIFT; - - val = ns_2_cycles(timings->tZQCS) - 1; - tim3 |= val << OMAP44XX_REG_ZQ_ZQCS_SHIFT; - - val = max(min_tck->tCKESR, ns_2_cycles(timings->tCKESR)) - 1; - tim3 |= val << OMAP44XX_REG_T_CKESR_SHIFT; - - return tim3; -} - -static u32 get_zq_config_reg(const struct lpddr2_device_details *cs1_device, - const struct lpddr2_addressing *addressing, - u8 volt_ramp) -{ - u32 zq = 0, val = 0; - if (volt_ramp) - val = - EMIF_ZQCS_INTERVAL_DVFS_IN_US * 10 / - addressing->t_REFI_us_x10; - else - val = - EMIF_ZQCS_INTERVAL_NORMAL_IN_US * 10 / - addressing->t_REFI_us_x10; - zq |= val << OMAP44XX_REG_ZQ_REFINTERVAL_SHIFT; - - zq |= (REG_ZQ_ZQCL_MULT - 1) << OMAP44XX_REG_ZQ_ZQCL_MULT_SHIFT; - - zq |= (REG_ZQ_ZQINIT_MULT - 1) << OMAP44XX_REG_ZQ_ZQINIT_MULT_SHIFT; - - zq |= REG_ZQ_SFEXITEN_ENABLE << OMAP44XX_REG_ZQ_SFEXITEN_SHIFT; - - /* - * Assuming that two chipselects have a single calibration resistor - * If there are indeed two calibration resistors, then this flag should - * be enabled to take advantage of dual calibration feature. - * This data should ideally come from board files. But considering - * that none of the boards today have calibration resistors per CS, - * it would be an unnecessary overhead. - */ - zq |= REG_ZQ_DUALCALEN_DISABLE << OMAP44XX_REG_ZQ_DUALCALEN_SHIFT; - - zq |= REG_ZQ_CS0EN_ENABLE << OMAP44XX_REG_ZQ_CS0EN_SHIFT; - - zq |= (cs1_device ? 1 : 0) << OMAP44XX_REG_ZQ_CS1EN_SHIFT; - - return zq; -} - -static u32 get_temp_alert_config(const struct lpddr2_device_details *cs1_device, - const struct lpddr2_addressing *addressing, - u8 is_derated) -{ - u32 alert = 0, interval; - interval = - TEMP_ALERT_POLL_INTERVAL_MS * 10000 / addressing->t_REFI_us_x10; - if (is_derated) - interval *= 4; - alert |= interval << OMAP44XX_REG_TA_REFINTERVAL_SHIFT; - - alert |= TEMP_ALERT_CONFIG_DEVCT_1 << OMAP44XX_REG_TA_DEVCNT_SHIFT; - - alert |= TEMP_ALERT_CONFIG_DEVWDT_32 << OMAP44XX_REG_TA_DEVWDT_SHIFT; - - alert |= 1 << OMAP44XX_REG_TA_SFEXITEN_SHIFT; - - alert |= 1 << OMAP44XX_REG_TA_CS0EN_SHIFT; - - alert |= (cs1_device ? 1 : 0) << OMAP44XX_REG_TA_CS1EN_SHIFT; - - return alert; -} - -static u32 get_read_idle_ctrl_reg(u8 volt_ramp) -{ - u32 idle = 0, val = 0; - if (volt_ramp) - val = ns_2_cycles(READ_IDLE_INTERVAL_DVFS) / 64 - 1; - else - /*Maximum value in normal conditions - suggested by hw team */ - val = 0x1FF; - idle |= val << OMAP44XX_REG_READ_IDLE_INTERVAL_SHIFT; - - idle |= EMIF_REG_READ_IDLE_LEN_VAL << OMAP44XX_REG_READ_IDLE_LEN_SHIFT; - - return idle; -} - -static u32 get_ddr_phy_ctrl_1(u32 freq, u8 RL) -{ - u32 phy = 0, val = 0; - - phy |= (RL + 2) << OMAP44XX_REG_READ_LATENCY_SHIFT; - - if (freq <= 100000000) - val = EMIF_DLL_SLAVE_DLY_CTRL_100_MHZ_AND_LESS; - else if (freq <= 200000000) - val = EMIF_DLL_SLAVE_DLY_CTRL_200_MHZ; - else - val = EMIF_DLL_SLAVE_DLY_CTRL_400_MHZ; - phy |= val << OMAP44XX_REG_DLL_SLAVE_DLY_CTRL_SHIFT; - - /* Other fields are constant magic values. Hardcode them together */ - phy |= EMIF_DDR_PHY_CTRL_1_BASE_VAL << - OMAP44XX_EMIF_DDR_PHY_CTRL_1_BASE_VAL_SHIFT; - - return phy; -} - -static u32 get_emif_mem_size(struct emif_device_details *devices) -{ - u32 size_mbytes = 0, temp; - - if (!devices) - return 0; - - if (devices->cs0_device_details) { - temp = devices->cs0_device_details->density; - size_mbytes += lpddr2_density_2_size_in_mbytes[temp]; - } - - if (devices->cs1_device_details) { - temp = devices->cs1_device_details->density; - size_mbytes += lpddr2_density_2_size_in_mbytes[temp]; - } - /* convert to bytes */ - return size_mbytes << 20; -} - -/* Gets the encoding corresponding to a given DMM section size */ -u32 get_dmm_section_size_map(u32 section_size) -{ - /* - * Section size mapping: - * 0x0: 16-MiB section - * 0x1: 32-MiB section - * 0x2: 64-MiB section - * 0x3: 128-MiB section - * 0x4: 256-MiB section - * 0x5: 512-MiB section - * 0x6: 1-GiB section - * 0x7: 2-GiB section - */ - section_size >>= 24; /* divide by 16 MB */ - return log_2_n_round_down(section_size); -} - -static void emif_calculate_regs( - const struct emif_device_details *emif_dev_details, - u32 freq, struct emif_regs *regs) -{ - u32 temp, sys_freq; - const struct lpddr2_addressing *addressing; - const struct lpddr2_ac_timings *timings; - const struct lpddr2_min_tck *min_tck; - const struct lpddr2_device_details *cs0_dev_details = - emif_dev_details->cs0_device_details; - const struct lpddr2_device_details *cs1_dev_details = - emif_dev_details->cs1_device_details; - const struct lpddr2_device_timings *cs0_dev_timings = - emif_dev_details->cs0_device_timings; - - emif_assert(emif_dev_details); - emif_assert(regs); - /* - * You can not have a device on CS1 without one on CS0 - * So configuring EMIF without a device on CS0 doesn't - * make sense - */ - emif_assert(cs0_dev_details); - emif_assert(cs0_dev_details->type != LPDDR2_TYPE_NVM); - /* - * If there is a device on CS1 it should be same type as CS0 - * (or NVM. But NVM is not supported in this driver yet) - */ - emif_assert((cs1_dev_details == NULL) || - (cs1_dev_details->type == LPDDR2_TYPE_NVM) || - (cs0_dev_details->type == cs1_dev_details->type)); - emif_assert(freq <= MAX_LPDDR2_FREQ); - - set_ddr_clk_period(freq); - - /* - * The device on CS0 is used for all timing calculations - * There is only one set of registers for timings per EMIF. So, if the - * second CS(CS1) has a device, it should have the same timings as the - * device on CS0 - */ - timings = get_timings_table(cs0_dev_timings->ac_timings, freq); - emif_assert(timings); - min_tck = cs0_dev_timings->min_tck; - - temp = addressing_table_index(cs0_dev_details->type, - cs0_dev_details->density, - cs0_dev_details->io_width); - - emif_assert((temp >= 0)); - addressing = &(addressing_table[temp]); - emif_assert(addressing); - - sys_freq = get_sys_clk_freq(); - - regs->sdram_config_init = get_sdram_config_reg(cs0_dev_details, - cs1_dev_details, - addressing, RL_BOOT); - - regs->sdram_config = get_sdram_config_reg(cs0_dev_details, - cs1_dev_details, - addressing, RL_FINAL); - - regs->ref_ctrl = get_sdram_ref_ctrl(freq, addressing); - - regs->sdram_tim1 = get_sdram_tim_1_reg(timings, min_tck, addressing); - - regs->sdram_tim2 = get_sdram_tim_2_reg(timings, min_tck); - - regs->sdram_tim3 = get_sdram_tim_3_reg(timings, min_tck, addressing); - - regs->read_idle_ctrl = get_read_idle_ctrl_reg(LPDDR2_VOLTAGE_STABLE); - - regs->temp_alert_config = - get_temp_alert_config(cs1_dev_details, addressing, 0); - - regs->zq_config = get_zq_config_reg(cs1_dev_details, addressing, - LPDDR2_VOLTAGE_STABLE); - - regs->emif_ddr_phy_ctlr_1_init = - get_ddr_phy_ctrl_1(sys_freq / 2, RL_BOOT); - - regs->emif_ddr_phy_ctlr_1 = - get_ddr_phy_ctrl_1(freq, RL_FINAL); - - regs->freq = freq; - - print_timing_reg(regs->sdram_config_init); - print_timing_reg(regs->sdram_config); - print_timing_reg(regs->ref_ctrl); - print_timing_reg(regs->sdram_tim1); - print_timing_reg(regs->sdram_tim2); - print_timing_reg(regs->sdram_tim3); - print_timing_reg(regs->read_idle_ctrl); - print_timing_reg(regs->temp_alert_config); - print_timing_reg(regs->zq_config); - print_timing_reg(regs->emif_ddr_phy_ctlr_1); - print_timing_reg(regs->emif_ddr_phy_ctlr_1_init); -} -#endif /* CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS */ - -#ifdef CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS -/* Base AC Timing values specified by JESD209-2 for 400MHz operation */ -static const struct lpddr2_ac_timings timings_jedec_400_mhz = { - .max_freq = 400000000, - .RL = 6, - .tRPab = 21, - .tRCD = 18, - .tWR = 15, - .tRASmin = 42, - .tRRD = 10, - .tWTRx2 = 15, - .tXSR = 140, - .tXPx2 = 15, - .tRFCab = 130, - .tRTPx2 = 15, - .tCKE = 3, - .tCKESR = 15, - .tZQCS = 90, - .tZQCL = 360, - .tZQINIT = 1000, - .tDQSCKMAXx2 = 11, - .tRASmax = 70, - .tFAW = 50 -}; - -/* Base AC Timing values specified by JESD209-2 for 333 MHz operation */ -static const struct lpddr2_ac_timings timings_jedec_333_mhz = { - .max_freq = 333000000, - .RL = 5, - .tRPab = 21, - .tRCD = 18, - .tWR = 15, - .tRASmin = 42, - .tRRD = 10, - .tWTRx2 = 15, - .tXSR = 140, - .tXPx2 = 15, - .tRFCab = 130, - .tRTPx2 = 15, - .tCKE = 3, - .tCKESR = 15, - .tZQCS = 90, - .tZQCL = 360, - .tZQINIT = 1000, - .tDQSCKMAXx2 = 11, - .tRASmax = 70, - .tFAW = 50 -}; - -/* Base AC Timing values specified by JESD209-2 for 200 MHz operation */ -static const struct lpddr2_ac_timings timings_jedec_200_mhz = { - .max_freq = 200000000, - .RL = 3, - .tRPab = 21, - .tRCD = 18, - .tWR = 15, - .tRASmin = 42, - .tRRD = 10, - .tWTRx2 = 20, - .tXSR = 140, - .tXPx2 = 15, - .tRFCab = 130, - .tRTPx2 = 15, - .tCKE = 3, - .tCKESR = 15, - .tZQCS = 90, - .tZQCL = 360, - .tZQINIT = 1000, - .tDQSCKMAXx2 = 11, - .tRASmax = 70, - .tFAW = 50 -}; - -/* - * Min tCK values specified by JESD209-2 - * Min tCK specifies the minimum duration of some AC timing parameters in terms - * of the number of cycles. If the calculated number of cycles based on the - * absolute time value is less than the min tCK value, min tCK value should - * be used instead. This typically happens at low frequencies. - */ -static const struct lpddr2_min_tck min_tck_jedec = { - .tRL = 3, - .tRP_AB = 3, - .tRCD = 3, - .tWR = 3, - .tRAS_MIN = 3, - .tRRD = 2, - .tWTR = 2, - .tXP = 2, - .tRTP = 2, - .tCKE = 3, - .tCKESR = 3, - .tFAW = 8 -}; - -static const struct lpddr2_ac_timings const* - jedec_ac_timings[MAX_NUM_SPEEDBINS] = { - &timings_jedec_200_mhz, - &timings_jedec_333_mhz, - &timings_jedec_400_mhz -}; - -static const struct lpddr2_device_timings jedec_default_timings = { - .ac_timings = jedec_ac_timings, - .min_tck = &min_tck_jedec -}; - -void emif_get_device_timings(u32 emif_nr, - const struct lpddr2_device_timings **cs0_device_timings, - const struct lpddr2_device_timings **cs1_device_timings) -{ - /* Assume Identical devices on EMIF1 & EMIF2 */ - *cs0_device_timings = &jedec_default_timings; - *cs1_device_timings = &jedec_default_timings; -} -#endif /* CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS */ - -#ifdef CONFIG_SYS_AUTOMATIC_SDRAM_DETECTION -const char *get_lpddr2_type(u8 type_id) -{ - switch (type_id) { - case LPDDR2_TYPE_S4: - return "LPDDR2-S4"; - case LPDDR2_TYPE_S2: - return "LPDDR2-S2"; - default: - return NULL; - } -} - -const char *get_lpddr2_io_width(u8 width_id) -{ - switch (width_id) { - case LPDDR2_IO_WIDTH_8: - return "x8"; - case LPDDR2_IO_WIDTH_16: - return "x16"; - case LPDDR2_IO_WIDTH_32: - return "x32"; - default: - return NULL; - } -} - -const char *get_lpddr2_manufacturer(u32 manufacturer) -{ - switch (manufacturer) { - case LPDDR2_MANUFACTURER_SAMSUNG: - return "Samsung"; - case LPDDR2_MANUFACTURER_QIMONDA: - return "Qimonda"; - case LPDDR2_MANUFACTURER_ELPIDA: - return "Elpida"; - case LPDDR2_MANUFACTURER_ETRON: - return "Etron"; - case LPDDR2_MANUFACTURER_NANYA: - return "Nanya"; - case LPDDR2_MANUFACTURER_HYNIX: - return "Hynix"; - case LPDDR2_MANUFACTURER_MOSEL: - return "Mosel"; - case LPDDR2_MANUFACTURER_WINBOND: - return "Winbond"; - case LPDDR2_MANUFACTURER_ESMT: - return "ESMT"; - case LPDDR2_MANUFACTURER_SPANSION: - return "Spansion"; - case LPDDR2_MANUFACTURER_SST: - return "SST"; - case LPDDR2_MANUFACTURER_ZMOS: - return "ZMOS"; - case LPDDR2_MANUFACTURER_INTEL: - return "Intel"; - case LPDDR2_MANUFACTURER_NUMONYX: - return "Numonyx"; - case LPDDR2_MANUFACTURER_MICRON: - return "Micron"; - default: - return NULL; - } -} - -static void display_sdram_details(u32 emif_nr, u32 cs, - struct lpddr2_device_details *device) -{ - const char *mfg_str; - const char *type_str; - char density_str[10]; - u32 density; - - debug("EMIF%d CS%d\t", emif_nr, cs); - - if (!device) { - debug("None\n"); - return; - } - - mfg_str = get_lpddr2_manufacturer(device->manufacturer); - type_str = get_lpddr2_type(device->type); - - density = lpddr2_density_2_size_in_mbytes[device->density]; - if ((density / 1024 * 1024) == density) { - density /= 1024; - sprintf(density_str, "%d GB", density); - } else - sprintf(density_str, "%d MB", density); - if (mfg_str && type_str) - debug("%s\t\t%s\t%s\n", mfg_str, type_str, density_str); -} - -static u8 is_lpddr2_sdram_present(u32 base, u32 cs, - struct lpddr2_device_details *lpddr2_device) -{ - u32 mr = 0, temp; - - mr = get_mr(base, cs, LPDDR2_MR0); - if (mr > 0xFF) { - /* Mode register value bigger than 8 bit */ - return 0; - } - - temp = (mr & LPDDR2_MR0_DI_MASK) >> LPDDR2_MR0_DI_SHIFT; - if (temp) { - /* Not SDRAM */ - return 0; - } - temp = (mr & LPDDR2_MR0_DNVI_MASK) >> LPDDR2_MR0_DNVI_SHIFT; - - if (temp) { - /* DNV supported - But DNV is only supported for NVM */ - return 0; - } - - mr = get_mr(base, cs, LPDDR2_MR4); - if (mr > 0xFF) { - /* Mode register value bigger than 8 bit */ - return 0; - } - - mr = get_mr(base, cs, LPDDR2_MR5); - if (mr >= 0xFF) { - /* Mode register value bigger than 8 bit */ - return 0; - } - - if (!get_lpddr2_manufacturer(mr)) { - /* Manufacturer not identified */ - return 0; - } - lpddr2_device->manufacturer = mr; - - mr = get_mr(base, cs, LPDDR2_MR6); - if (mr >= 0xFF) { - /* Mode register value bigger than 8 bit */ - return 0; - } - - mr = get_mr(base, cs, LPDDR2_MR7); - if (mr >= 0xFF) { - /* Mode register value bigger than 8 bit */ - return 0; - } - - mr = get_mr(base, cs, LPDDR2_MR8); - if (mr >= 0xFF) { - /* Mode register value bigger than 8 bit */ - return 0; - } - - temp = (mr & MR8_TYPE_MASK) >> MR8_TYPE_SHIFT; - if (!get_lpddr2_type(temp)) { - /* Not SDRAM */ - return 0; - } - lpddr2_device->type = temp; - - temp = (mr & MR8_DENSITY_MASK) >> MR8_DENSITY_SHIFT; - if (temp > LPDDR2_DENSITY_32Gb) { - /* Density not supported */ - return 0; - } - lpddr2_device->density = temp; - - temp = (mr & MR8_IO_WIDTH_MASK) >> MR8_IO_WIDTH_SHIFT; - if (!get_lpddr2_io_width(temp)) { - /* IO width unsupported value */ - return 0; - } - lpddr2_device->io_width = temp; - - /* - * If all the above tests pass we should - * have a device on this chip-select - */ - return 1; -} - -struct lpddr2_device_details *emif_get_device_details(u32 emif_nr, u8 cs, - struct lpddr2_device_details *lpddr2_dev_details) -{ - u32 phy; - u32 base = (emif_nr == 1) ? OMAP44XX_EMIF1 : OMAP44XX_EMIF2; - struct emif_reg_struct *emif = (struct emif_reg_struct *)base; - - if (!lpddr2_dev_details) - return NULL; - - /* Do the minimum init for mode register accesses */ - if (!running_from_sdram()) { - phy = get_ddr_phy_ctrl_1(get_sys_clk_freq() / 2, RL_BOOT); - writel(phy, &emif->emif_ddr_phy_ctrl_1); - } - - if (!(is_lpddr2_sdram_present(base, cs, lpddr2_dev_details))) - return NULL; - - display_sdram_details(emif_num(base), cs, lpddr2_dev_details); - - return lpddr2_dev_details; -} -#endif /* CONFIG_SYS_AUTOMATIC_SDRAM_DETECTION */ - -static void do_sdram_init(u32 base) -{ - const struct emif_regs *regs; - u32 in_sdram, emif_nr; - - debug(">>do_sdram_init() %x\n", base); - - in_sdram = running_from_sdram(); - emif_nr = (base == OMAP44XX_EMIF1) ? 1 : 2; - -#ifdef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS - emif_get_reg_dump(emif_nr, ®s); - if (!regs) { - debug("EMIF: reg dump not provided\n"); - return; - } -#else - /* - * The user has not provided the register values. We need to - * calculate it based on the timings and the DDR frequency - */ - struct emif_device_details dev_details; - struct emif_regs calculated_regs; - - /* - * Get device details: - * - Discovered if CONFIG_SYS_AUTOMATIC_SDRAM_DETECTION is set - * - Obtained from user otherwise - */ - struct lpddr2_device_details cs0_dev_details, cs1_dev_details; - emif_reset_phy(base); - dev_details.cs0_device_details = emif_get_device_details(base, CS0, - &cs0_dev_details); - dev_details.cs1_device_details = emif_get_device_details(base, CS1, - &cs1_dev_details); - emif_reset_phy(base); - - /* Return if no devices on this EMIF */ - if (!dev_details.cs0_device_details && - !dev_details.cs1_device_details) { - emif_sizes[emif_nr - 1] = 0; - return; - } - - if (!in_sdram) - emif_sizes[emif_nr - 1] = get_emif_mem_size(&dev_details); - - /* - * Get device timings: - * - Default timings specified by JESD209-2 if - * CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS is set - * - Obtained from user otherwise - */ - emif_get_device_timings(emif_nr, &dev_details.cs0_device_timings, - &dev_details.cs1_device_timings); - - /* Calculate the register values */ - emif_calculate_regs(&dev_details, omap4_ddr_clk(), &calculated_regs); - regs = &calculated_regs; -#endif /* CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS */ - - /* - * Initializing the LPDDR2 device can not happen from SDRAM. - * Changing the timing registers in EMIF can happen(going from one - * OPP to another) - */ - if (!in_sdram) - lpddr2_init(base, regs); - - /* Write to the shadow registers */ - emif_update_timings(base, regs); - - debug("<<do_sdram_init() %x\n", base); -} - -static void emif_post_init_config(u32 base) -{ - struct emif_reg_struct *emif = (struct emif_reg_struct *)base; - u32 omap4_rev = omap_revision(); - - /* reset phy on ES2.0 */ - if (omap4_rev == OMAP4430_ES2_0) - emif_reset_phy(base); - - /* Put EMIF back in smart idle on ES1.0 */ - if (omap4_rev == OMAP4430_ES1_0) - writel(0x80000000, &emif->emif_pwr_mgmt_ctrl); -} - -static void dmm_init(u32 base) -{ - const struct dmm_lisa_map_regs *lisa_map_regs; - -#ifdef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS - emif_get_dmm_regs(&lisa_map_regs); -#else - u32 emif1_size, emif2_size, mapped_size, section_map = 0; - u32 section_cnt, sys_addr; - struct dmm_lisa_map_regs lis_map_regs_calculated = {0}; - - mapped_size = 0; - section_cnt = 3; - sys_addr = CONFIG_SYS_SDRAM_BASE; - emif1_size = emif_sizes[0]; - emif2_size = emif_sizes[1]; - debug("emif1_size 0x%x emif2_size 0x%x\n", emif1_size, emif2_size); - - if (!emif1_size && !emif2_size) - return; - - /* symmetric interleaved section */ - if (emif1_size && emif2_size) { - mapped_size = min(emif1_size, emif2_size); - section_map = DMM_LISA_MAP_INTERLEAVED_BASE_VAL; - section_map |= 0 << OMAP44XX_SDRC_ADDR_SHIFT; - /* only MSB */ - section_map |= (sys_addr >> 24) << - OMAP44XX_SYS_ADDR_SHIFT; - section_map |= get_dmm_section_size_map(mapped_size * 2) - << OMAP44XX_SYS_SIZE_SHIFT; - lis_map_regs_calculated.dmm_lisa_map_3 = section_map; - emif1_size -= mapped_size; - emif2_size -= mapped_size; - sys_addr += (mapped_size * 2); - section_cnt--; - } - - /* - * Single EMIF section(we can have a maximum of 1 single EMIF - * section- either EMIF1 or EMIF2 or none, but not both) - */ - if (emif1_size) { - section_map = DMM_LISA_MAP_EMIF1_ONLY_BASE_VAL; - section_map |= get_dmm_section_size_map(emif1_size) - << OMAP44XX_SYS_SIZE_SHIFT; - /* only MSB */ - section_map |= (mapped_size >> 24) << - OMAP44XX_SDRC_ADDR_SHIFT; - /* only MSB */ - section_map |= (sys_addr >> 24) << OMAP44XX_SYS_ADDR_SHIFT; - section_cnt--; - } - if (emif2_size) { - section_map = DMM_LISA_MAP_EMIF2_ONLY_BASE_VAL; - section_map |= get_dmm_section_size_map(emif2_size) << - OMAP44XX_SYS_SIZE_SHIFT; - /* only MSB */ - section_map |= mapped_size >> 24 << OMAP44XX_SDRC_ADDR_SHIFT; - /* only MSB */ - section_map |= sys_addr >> 24 << OMAP44XX_SYS_ADDR_SHIFT; - section_cnt--; - } - - if (section_cnt == 2) { - /* Only 1 section - either symmetric or single EMIF */ - lis_map_regs_calculated.dmm_lisa_map_3 = section_map; - lis_map_regs_calculated.dmm_lisa_map_2 = 0; - lis_map_regs_calculated.dmm_lisa_map_1 = 0; - } else { - /* 2 sections - 1 symmetric, 1 single EMIF */ - lis_map_regs_calculated.dmm_lisa_map_2 = section_map; - lis_map_regs_calculated.dmm_lisa_map_1 = 0; - } - - /* TRAP for invalid TILER mappings in section 0 */ - lis_map_regs_calculated.dmm_lisa_map_0 = DMM_LISA_MAP_0_INVAL_ADDR_TRAP; - - lisa_map_regs = &lis_map_regs_calculated; -#endif - struct dmm_lisa_map_regs *hw_lisa_map_regs = - (struct dmm_lisa_map_regs *)base; - - writel(0, &hw_lisa_map_regs->dmm_lisa_map_3); - writel(0, &hw_lisa_map_regs->dmm_lisa_map_2); - writel(0, &hw_lisa_map_regs->dmm_lisa_map_1); - writel(0, &hw_lisa_map_regs->dmm_lisa_map_0); - - writel(lisa_map_regs->dmm_lisa_map_3, - &hw_lisa_map_regs->dmm_lisa_map_3); - writel(lisa_map_regs->dmm_lisa_map_2, - &hw_lisa_map_regs->dmm_lisa_map_2); - writel(lisa_map_regs->dmm_lisa_map_1, - &hw_lisa_map_regs->dmm_lisa_map_1); - writel(lisa_map_regs->dmm_lisa_map_0, - &hw_lisa_map_regs->dmm_lisa_map_0); - - if (omap_revision() >= OMAP4460_ES1_0) { - hw_lisa_map_regs = - (struct dmm_lisa_map_regs *)OMAP44XX_MA_LISA_MAP_BASE; - - writel(lisa_map_regs->dmm_lisa_map_3, - &hw_lisa_map_regs->dmm_lisa_map_3); - writel(lisa_map_regs->dmm_lisa_map_2, - &hw_lisa_map_regs->dmm_lisa_map_2); - writel(lisa_map_regs->dmm_lisa_map_1, - &hw_lisa_map_regs->dmm_lisa_map_1); - writel(lisa_map_regs->dmm_lisa_map_0, - &hw_lisa_map_regs->dmm_lisa_map_0); - } -} - -/* - * SDRAM initialization: - * SDRAM initialization has two parts: - * 1. Configuring the SDRAM device - * 2. Update the AC timings related parameters in the EMIF module - * (1) should be done only once and should not be done while we are - * running from SDRAM. - * (2) can and should be done more than once if OPP changes. - * Particularly, this may be needed when we boot without SPL and - * and using Configuration Header(CH). ROM code supports only at 50% OPP - * at boot (low power boot). So u-boot has to switch to OPP100 and update - * the frequency. So, - * Doing (1) and (2) makes sense - first time initialization - * Doing (2) and not (1) makes sense - OPP change (when using CH) - * Doing (1) and not (2) doen't make sense - * See do_sdram_init() for the details - */ -void sdram_init(void) -{ - u32 in_sdram, size_prog, size_detect; - - debug(">>sdram_init()\n"); - - if (omap4_hw_init_context() == OMAP_INIT_CONTEXT_UBOOT_AFTER_SPL) - return; - - in_sdram = running_from_sdram(); - debug("in_sdram = %d\n", in_sdram); - - if (!in_sdram) { - bypass_dpll(&prcm->cm_clkmode_dpll_core); - } - - do_sdram_init(OMAP44XX_EMIF1); - do_sdram_init(OMAP44XX_EMIF2); - - if (!in_sdram) { - dmm_init(OMAP44XX_DMM_LISA_MAP_BASE); - emif_post_init_config(OMAP44XX_EMIF1); - emif_post_init_config(OMAP44XX_EMIF2); - - } - - /* for the shadow registers to take effect */ - freq_update_core(); - - /* Do some testing after the init */ - if (!in_sdram) { - size_prog = omap4_sdram_size(); - size_detect = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, - size_prog); - /* Compare with the size programmed */ - if (size_detect != size_prog) { - printf("SDRAM: identified size not same as expected" - " size identified: %x expected: %x\n", - size_detect, - size_prog); - } else - debug("get_ram_size() successful"); - } - - debug("<<sdram_init()\n"); -} diff --git a/arch/arm/cpu/armv7/omap4/lowlevel_init.S b/arch/arm/cpu/armv7/omap4/lowlevel_init.S deleted file mode 100644 index 91525ec..0000000 --- a/arch/arm/cpu/armv7/omap4/lowlevel_init.S +++ /dev/null @@ -1,87 +0,0 @@ -/* - * Board specific setup info - * - * (C) Copyright 2010 - * Texas Instruments, <www.ti.com> - * - * Author : - * Aneesh V <aneesh@ti.com> - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <asm/arch/omap4.h> -#ifdef CONFIG_SPL_BUILD -.global save_boot_params -save_boot_params: - /* - * See if the rom code passed pointer is valid: - * It is not valid if it is not in non-secure SRAM - * This may happen if you are booting with the help of - * debugger - */ - ldr r2, =NON_SECURE_SRAM_START - cmp r2, r0 - bgt 1f - ldr r2, =NON_SECURE_SRAM_END - cmp r2, r0 - blt 1f - - /* Store the boot device in omap4_boot_device */ - ldr r2, [r0, #BOOT_DEVICE_OFFSET] @ r1 <- value of boot device - and r2, #BOOT_DEVICE_MASK - ldr r3, =omap4_boot_device - str r2, [r3] @ omap4_boot_device <- r1 - - /* Store the boot mode (raw/FAT) in omap4_boot_mode */ - ldr r2, [r0, #DEV_DESC_PTR_OFFSET] @ get the device descriptor ptr - ldr r2, [r2, #DEV_DATA_PTR_OFFSET] @ get the pDeviceData ptr - ldr r2, [r2, #BOOT_MODE_OFFSET] @ get the boot mode - ldr r3, =omap4_boot_mode - str r2, [r3] -1: - bx lr -#endif - -.globl lowlevel_init -lowlevel_init: - /* - * Setup a temporary stack - */ - ldr sp, =LOW_LEVEL_SRAM_STACK - - /* - * Save the old lr(passed in ip) and the current lr to stack - */ - push {ip, lr} - - /* - * go setup pll, mux, memory - */ - bl s_init - pop {ip, pc} - -.globl set_pl310_ctrl_reg -set_pl310_ctrl_reg: - PUSH {r4-r11, lr} @ save registers - ROM code may pollute - @ our registers - LDR r12, =0x102 @ Set PL310 control register - value in R0 - .word 0xe1600070 @ SMC #0 - hand assembled because -march=armv5 - @ call ROM Code API to set control register - POP {r4-r11, pc} diff --git a/arch/arm/cpu/armv7/omap4/mem.c b/arch/arm/cpu/armv7/omap4/mem.c deleted file mode 100644 index 878f0e3..0000000 --- a/arch/arm/cpu/armv7/omap4/mem.c +++ /dev/null @@ -1,45 +0,0 @@ -/* - * (C) Copyright 2010 - * Texas Instruments, <www.ti.com> - * - * Steve Sakoman <steve@sakoman.com> - * - * 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <asm/arch/cpu.h> -#include <asm/arch/sys_proto.h> - -struct gpmc *gpmc_cfg; - -/***************************************************** - * gpmc_init(): init gpmc bus - * This code can only be executed from SRAM or SDRAM. - *****************************************************/ -void gpmc_init(void) -{ - gpmc_cfg = (struct gpmc *)GPMC_BASE; - - /* global settings */ - writel(0, &gpmc_cfg->irqenable); /* isr's sources masked */ - writel(0, &gpmc_cfg->timeout_control);/* timeout disable */ - - /* - * Disable the GPMC0 config set by ROM code - * It conflicts with our MPDB (both at 0x08000000) - */ - writel(0, &gpmc_cfg->cs[0].config7); -} |