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GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

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lai
2026-09-06 03:52:57 +08:00
commit b1928b41c0
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source/bootloader/u-boot-2020.01/arch/arm/mach-omap2/omap3/Kconfig
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if OMAP34XX
# We only enable the clocks for the GPIO banks that a given board requies.
config OMAP3_GPIO_2
bool
default y if CMD_GPIO
config OMAP3_GPIO_3
bool
default y if CMD_GPIO
config OMAP3_GPIO_4
bool
default y if CMD_GPIO
config OMAP3_GPIO_5
bool
default y if CMD_GPIO
config OMAP3_GPIO_6
bool
default y if CMD_GPIO
choice
prompt "OMAP3 board select"
optional
config TARGET_AM3517_EVM
bool "AM3517 EVM"
select DM
select DM_GPIO
select DM_I2C
select DM_MMC
select DM_SERIAL
imply CMD_DM
config TARGET_OMAP3_BEAGLE
bool "TI OMAP3 BeagleBoard"
select DM
select DM_GPIO
select DM_SERIAL
select OMAP3_GPIO_5
select OMAP3_GPIO_6
imply CMD_DM
config TARGET_CM_T35
bool "CompuLab CM-T3530 and CM-T3730 boards"
select OMAP3_GPIO_2
select OMAP3_GPIO_5
select OMAP3_GPIO_6 if LED_STATUS
config TARGET_DEVKIT8000
bool "TimLL OMAP3 Devkit8000"
select DM
select DM_GPIO
select DM_SERIAL
imply CMD_DM
config TARGET_OMAP3_EVM
bool "TI OMAP3 EVM"
select DM
select DM_GPIO
select DM_SERIAL
select OMAP3_GPIO_3
imply CMD_DM
config TARGET_OMAP3_IGEP00X0
bool "IGEP"
select DM
select DM_GPIO
select DM_SERIAL
select OMAP3_GPIO_3
select OMAP3_GPIO_5
select OMAP3_GPIO_6
imply CMD_DM
config TARGET_OMAP3_OVERO
bool "OMAP35xx Gumstix Overo"
select DM
select DM_GPIO
select DM_SERIAL
select OMAP3_GPIO_2
select OMAP3_GPIO_3
select OMAP3_GPIO_4
select OMAP3_GPIO_5
select OMAP3_GPIO_6
imply CMD_DM
config TARGET_OMAP3_ZOOM1
bool "TI Zoom1"
select DM
select DM_GPIO
select DM_SERIAL
imply CMD_DM
config TARGET_AM3517_CRANE
bool "am3517_crane"
config TARGET_OMAP3_PANDORA
bool "OMAP3 Pandora"
select OMAP3_GPIO_4
select OMAP3_GPIO_6
config TARGET_TRICORDER
bool "Tricorder"
select OMAP3_GPIO_2
config TARGET_OMAP3_LOGIC
bool "OMAP3 Logic"
select BOARD_LATE_INIT
select DM
select DM_GPIO
select DM_SERIAL
select OMAP3_GPIO_3
select OMAP3_GPIO_4
select OMAP3_GPIO_6
imply CMD_DM
config TARGET_NOKIA_RX51
bool "Nokia RX51"
config TARGET_TAO3530
bool "TAO3530"
select OMAP3_GPIO_2
select OMAP3_GPIO_3
select OMAP3_GPIO_4
select OMAP3_GPIO_5
select OMAP3_GPIO_6
config TARGET_OMAP3_CAIRO
bool "QUIPOS CAIRO"
select DM
select DM_GPIO
select DM_SERIAL
imply CMD_DM
config TARGET_SNIPER
bool "LG Optimus Black"
select DM
select DM_GPIO
select DM_SERIAL
select OMAP3_GPIO_2
select OMAP3_GPIO_3
select OMAP3_GPIO_4
select OMAP3_GPIO_5
select OMAP3_GPIO_6
imply CMD_DM
endchoice
choice
prompt "Memory Controller"
default SDRC
config SDRC
bool "SDRC controller"
help
The default memory controller on most OMAP3 boards is SDRC.
config EMIF4
bool "EMIF4 controller"
help
Enable this on boards like AM3517 which use EMIF4 controller
endchoice
config SPL_OMAP3_ID_NAND
bool "Support OMAP3-specific ID and MFR function"
help
Support for an OMAP3-specific set of functions to return the
ID and MFR of the first attached NAND chip, if present.
config SYS_SOC
default "omap3"
source "board/logicpd/am3517evm/Kconfig"
source "board/ti/beagle/Kconfig"
source "board/compulab/cm_t35/Kconfig"
source "board/timll/devkit8000/Kconfig"
source "board/ti/evm/Kconfig"
source "board/isee/igep00x0/Kconfig"
source "board/overo/Kconfig"
source "board/logicpd/zoom1/Kconfig"
source "board/ti/am3517crane/Kconfig"
source "board/pandora/Kconfig"
source "board/corscience/tricorder/Kconfig"
source "board/logicpd/omap3som/Kconfig"
source "board/nokia/rx51/Kconfig"
source "board/technexion/tao3530/Kconfig"
source "board/quipos/cairo/Kconfig"
source "board/lg/sniper/Kconfig"
endif
source/bootloader/u-boot-2020.01/arch/arm/mach-omap2/omap3/Makefile
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# SPDX-License-Identifier: GPL-2.0+
#
# (C) Copyright 2000-2003
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
# If clock.c is compiled for Thumb2, then it fails on OMAP3530
CFLAGS_clock.o += -marm
obj-y := lowlevel_init.o
obj-y += board.o
obj-y += boot.o
obj-y += clock.o
obj-y += sys_info.o
obj-y += prcm-regs.o
obj-y += hw_data.o
ifdef CONFIG_SPL_BUILD
obj-$(CONFIG_SPL_OMAP3_ID_NAND) += spl_id_nand.o
endif
obj-$(CONFIG_DRIVER_TI_EMAC) += emac.o
obj-$(CONFIG_EMIF4) += emif4.o
obj-$(CONFIG_SDRC) += sdrc.o
obj-$(CONFIG_USB_MUSB_AM35X) += am35x_musb.o
source/bootloader/u-boot-2020.01/arch/arm/mach-omap2/omap3/am35x_musb.c
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// SPDX-License-Identifier: GPL-2.0+
/*
* This file configures the internal USB PHY in AM35X.
*
* Copyright (C) 2012 Ilya Yanok <ilya.yanok@gmail.com>
*
* Based on omap_phy_internal.c code from Linux by
* Hema HK <hemahk@ti.com>
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/am35x_def.h>
void am35x_musb_reset(struct udevice *dev)
{
/* Reset the musb interface */
clrsetbits_le32(&am35x_scm_general_regs->ip_sw_reset,
0, USBOTGSS_SW_RST);
clrsetbits_le32(&am35x_scm_general_regs->ip_sw_reset,
USBOTGSS_SW_RST, 0);
}
void am35x_musb_phy_power(struct udevice *dev, u8 on)
{
unsigned long start = get_timer(0);
if (on) {
/*
* Start the on-chip PHY and its PLL.
*/
clrsetbits_le32(&am35x_scm_general_regs->devconf2,
CONF2_RESET | CONF2_PHYPWRDN | CONF2_OTGPWRDN,
CONF2_PHY_PLLON);
debug("Waiting for PHY clock good...\n");
while (!(readl(&am35x_scm_general_regs->devconf2)
& CONF2_PHYCLKGD)) {
if (get_timer(start) > CONFIG_SYS_HZ / 10) {
printf("musb PHY clock good timed out\n");
break;
}
}
} else {
/*
* Power down the on-chip PHY.
*/
clrsetbits_le32(&am35x_scm_general_regs->devconf2,
CONF2_PHY_PLLON,
CONF2_PHYPWRDN | CONF2_OTGPWRDN);
}
}
void am35x_musb_clear_irq(struct udevice *dev)
{
clrsetbits_le32(&am35x_scm_general_regs->lvl_intr_clr,
0, USBOTGSS_INT_CLR);
readl(&am35x_scm_general_regs->lvl_intr_clr);
}
source/bootloader/u-boot-2020.01/arch/arm/mach-omap2/omap3/board.c
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// SPDX-License-Identifier: GPL-2.0+
/*
*
* Common board functions for OMAP3 based boards.
*
* (C) Copyright 2004-2008
* Texas Instruments, <www.ti.com>
*
* Author :
* Sunil Kumar <sunilsaini05@gmail.com>
* Shashi Ranjan <shashiranjanmca05@gmail.com>
*
* Derived from Beagle Board and 3430 SDP code by
* Richard Woodruff <r-woodruff2@ti.com>
* Syed Mohammed Khasim <khasim@ti.com>
*
*/
#include <common.h>
#include <dm.h>
#include <spl.h>
#include <asm/io.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mem.h>
#include <asm/cache.h>
#include <asm/armv7.h>
#include <asm/gpio.h>
#include <asm/omap_common.h>
#include <linux/compiler.h>
/* Declarations */
extern omap3_sysinfo sysinfo;
#ifndef CONFIG_SYS_L2CACHE_OFF
static void omap3_invalidate_l2_cache_secure(void);
#endif
#ifdef CONFIG_DM_GPIO
#if !CONFIG_IS_ENABLED(OF_CONTROL)
/* Manually initialize GPIO banks when OF_CONTROL doesn't */
static const struct omap_gpio_platdata omap34xx_gpio[] = {
{ 0, OMAP34XX_GPIO1_BASE },
{ 1, OMAP34XX_GPIO2_BASE },
{ 2, OMAP34XX_GPIO3_BASE },
{ 3, OMAP34XX_GPIO4_BASE },
{ 4, OMAP34XX_GPIO5_BASE },
{ 5, OMAP34XX_GPIO6_BASE },
};
U_BOOT_DEVICES(omap34xx_gpios) = {
{ "gpio_omap", &omap34xx_gpio[0] },
{ "gpio_omap", &omap34xx_gpio[1] },
{ "gpio_omap", &omap34xx_gpio[2] },
{ "gpio_omap", &omap34xx_gpio[3] },
{ "gpio_omap", &omap34xx_gpio[4] },
{ "gpio_omap", &omap34xx_gpio[5] },
};
#endif
#else
static const struct gpio_bank gpio_bank_34xx[6] = {
{ (void *)OMAP34XX_GPIO1_BASE },
{ (void *)OMAP34XX_GPIO2_BASE },
{ (void *)OMAP34XX_GPIO3_BASE },
{ (void *)OMAP34XX_GPIO4_BASE },
{ (void *)OMAP34XX_GPIO5_BASE },
{ (void *)OMAP34XX_GPIO6_BASE },
};
const struct gpio_bank *const omap_gpio_bank = gpio_bank_34xx;
#endif
/******************************************************************************
* Routine: secure_unlock
* Description: Setup security registers for access
* (GP Device only)
*****************************************************************************/
void secure_unlock_mem(void)
{
struct pm *pm_rt_ape_base = (struct pm *)PM_RT_APE_BASE_ADDR_ARM;
struct pm *pm_gpmc_base = (struct pm *)PM_GPMC_BASE_ADDR_ARM;
struct pm *pm_ocm_ram_base = (struct pm *)PM_OCM_RAM_BASE_ADDR_ARM;
struct pm *pm_iva2_base = (struct pm *)PM_IVA2_BASE_ADDR_ARM;
struct sms *sms_base = (struct sms *)OMAP34XX_SMS_BASE;
/* Protection Module Register Target APE (PM_RT) */
writel(UNLOCK_1, &pm_rt_ape_base->req_info_permission_1);
writel(UNLOCK_1, &pm_rt_ape_base->read_permission_0);
writel(UNLOCK_1, &pm_rt_ape_base->wirte_permission_0);
writel(UNLOCK_2, &pm_rt_ape_base->addr_match_1);
writel(UNLOCK_3, &pm_gpmc_base->req_info_permission_0);
writel(UNLOCK_3, &pm_gpmc_base->read_permission_0);
writel(UNLOCK_3, &pm_gpmc_base->wirte_permission_0);
writel(UNLOCK_3, &pm_ocm_ram_base->req_info_permission_0);
writel(UNLOCK_3, &pm_ocm_ram_base->read_permission_0);
writel(UNLOCK_3, &pm_ocm_ram_base->wirte_permission_0);
writel(UNLOCK_2, &pm_ocm_ram_base->addr_match_2);
/* IVA Changes */
writel(UNLOCK_3, &pm_iva2_base->req_info_permission_0);
writel(UNLOCK_3, &pm_iva2_base->read_permission_0);
writel(UNLOCK_3, &pm_iva2_base->wirte_permission_0);
/* SDRC region 0 public */
writel(UNLOCK_1, &sms_base->rg_att0);
}
/******************************************************************************
* Routine: secureworld_exit()
* Description: If chip is EMU and boot type is external
* configure secure registers and exit secure world
* general use.
*****************************************************************************/
void secureworld_exit(void)
{
unsigned long i;
/* configure non-secure access control register */
__asm__ __volatile__("mrc p15, 0, %0, c1, c1, 2":"=r"(i));
/* enabling co-processor CP10 and CP11 accesses in NS world */
__asm__ __volatile__("orr %0, %0, #0xC00":"=r"(i));
/*
* allow allocation of locked TLBs and L2 lines in NS world
* allow use of PLE registers in NS world also
*/
__asm__ __volatile__("orr %0, %0, #0x70000":"=r"(i));
__asm__ __volatile__("mcr p15, 0, %0, c1, c1, 2":"=r"(i));
/* Enable ASA in ACR register */
__asm__ __volatile__("mrc p15, 0, %0, c1, c0, 1":"=r"(i));
__asm__ __volatile__("orr %0, %0, #0x10":"=r"(i));
__asm__ __volatile__("mcr p15, 0, %0, c1, c0, 1":"=r"(i));
/* Exiting secure world */
__asm__ __volatile__("mrc p15, 0, %0, c1, c1, 0":"=r"(i));
__asm__ __volatile__("orr %0, %0, #0x31":"=r"(i));
__asm__ __volatile__("mcr p15, 0, %0, c1, c1, 0":"=r"(i));
}
/******************************************************************************
* Routine: try_unlock_sram()
* Description: If chip is GP/EMU(special) type, unlock the SRAM for
* general use.
*****************************************************************************/
void try_unlock_memory(void)
{
int mode;
int in_sdram = is_running_in_sdram();
/*
* if GP device unlock device SRAM for general use
* secure code breaks for Secure/Emulation device - HS/E/T
*/
mode = get_device_type();
if (mode == GP_DEVICE)
secure_unlock_mem();
/*
* If device is EMU and boot is XIP external booting
* Unlock firewalls and disable L2 and put chip
* out of secure world
*
* Assuming memories are unlocked by the demon who put us in SDRAM
*/
if ((mode <= EMU_DEVICE) && (get_boot_type() == 0x1F)
&& (!in_sdram)) {
secure_unlock_mem();
secureworld_exit();
}
return;
}
void early_system_init(void)
{
hw_data_init();
}
/******************************************************************************
* Routine: s_init
* Description: Does early system init of muxing and clocks.
* - Called path is with SRAM stack.
*****************************************************************************/
void s_init(void)
{
watchdog_init();
early_system_init();
try_unlock_memory();
#ifndef CONFIG_SYS_L2CACHE_OFF
/* Invalidate L2-cache from secure mode */
omap3_invalidate_l2_cache_secure();
#endif
set_muxconf_regs();
sdelay(100);
prcm_init();
per_clocks_enable();
#ifdef CONFIG_USB_EHCI_OMAP
ehci_clocks_enable();
#endif
}
#ifdef CONFIG_SPL_BUILD
void board_init_f(ulong dummy)
{
early_system_init();
mem_init();
/*
* Save the boot parameters passed from romcode.
* We cannot delay the saving further than this,
* to prevent overwrites.
*/
save_omap_boot_params();
}
#endif
/*
* Routine: misc_init_r
* Description: A basic misc_init_r that just displays the die ID
*/
int __weak misc_init_r(void)
{
omap_die_id_display();
return 0;
}
/******************************************************************************
* Routine: wait_for_command_complete
* Description: Wait for posting to finish on watchdog
*****************************************************************************/
static 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 *)WD2_BASE;
struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
/*
* There are 3 watch dogs WD1=Secure, WD2=MPU, WD3=IVA. WD1 is
* either taken care of by ROM (HS/EMU) or not accessible (GP).
* We need to take care of WD2-MPU or take a PRCM reset. WD3
* should not be running and does not generate a PRCM reset.
*/
setbits_le32(&prcm_base->fclken_wkup, 0x20);
setbits_le32(&prcm_base->iclken_wkup, 0x20);
wait_on_value(ST_WDT2, 0x20, &prcm_base->idlest_wkup, 5);
writel(WD_UNLOCK1, &wd2_base->wspr);
wait_for_command_complete(wd2_base);
writel(WD_UNLOCK2, &wd2_base->wspr);
}
/******************************************************************************
* Dummy function to handle errors for EABI incompatibility
*****************************************************************************/
void abort(void)
{
}
#if defined(CONFIG_NAND_OMAP_GPMC) & !defined(CONFIG_SPL_BUILD)
/******************************************************************************
* OMAP3 specific command to switch between NAND HW and SW ecc
*****************************************************************************/
static int do_switch_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
{
int hw, strength = 1;
if (argc < 2 || argc > 3)
goto usage;
if (strncmp(argv[1], "hw", 2) == 0) {
hw = 1;
if (argc == 3) {
if (strncmp(argv[2], "bch8", 4) == 0)
strength = 8;
else if (strncmp(argv[2], "bch16", 5) == 0)
strength = 16;
else if (strncmp(argv[2], "hamming", 7) != 0)
goto usage;
}
} else if (strncmp(argv[1], "sw", 2) == 0) {
hw = 0;
if (argc == 3) {
if (strncmp(argv[2], "bch8", 4) == 0)
strength = 8;
else if (strncmp(argv[2], "hamming", 7) != 0)
goto usage;
}
} else {
goto usage;
}
return -omap_nand_switch_ecc(hw, strength);
usage:
printf ("Usage: nandecc %s\n", cmdtp->usage);
return 1;
}
U_BOOT_CMD(
nandecc, 3, 1, do_switch_ecc,
"switch OMAP3 NAND ECC calculation algorithm",
"hw [hamming|bch8|bch16] - Switch between NAND hardware 1-bit hamming"
" and 8-bit/16-bit BCH\n"
" ecc calculation (second parameter may"
" be omitted).\n"
"nandecc sw - Switch to NAND software ecc algorithm."
);
#endif /* CONFIG_NAND_OMAP_GPMC & !CONFIG_SPL_BUILD */
#ifdef CONFIG_DISPLAY_BOARDINFO
/**
* Print board information
*/
int checkboard (void)
{
char *mem_s ;
if (is_mem_sdr())
mem_s = "mSDR";
else
mem_s = "LPDDR";
printf("%s + %s/%s\n", sysinfo.board_string, mem_s,
sysinfo.nand_string);
return 0;
}
#endif /* CONFIG_DISPLAY_BOARDINFO */
static void omap3_emu_romcode_call(u32 service_id, u32 *parameters)
{
u32 i, num_params = *parameters;
u32 *sram_scratch_space = (u32 *)OMAP3_PUBLIC_SRAM_SCRATCH_AREA;
/*
* copy the parameters to an un-cached area to avoid coherency
* issues
*/
for (i = 0; i < num_params; i++) {
__raw_writel(*parameters, sram_scratch_space);
parameters++;
sram_scratch_space++;
}
/* Now make the PPA call */
do_omap3_emu_romcode_call(service_id, OMAP3_PUBLIC_SRAM_SCRATCH_AREA);
}
void __weak omap3_set_aux_cr_secure(u32 acr)
{
struct emu_hal_params emu_romcode_params;
emu_romcode_params.num_params = 1;
emu_romcode_params.param1 = acr;
omap3_emu_romcode_call(OMAP3_EMU_HAL_API_WRITE_ACR,
(u32 *)&emu_romcode_params);
}
void v7_arch_cp15_set_l2aux_ctrl(u32 l2auxctrl, u32 cpu_midr,
u32 cpu_rev_comb, u32 cpu_variant,
u32 cpu_rev)
{
if (get_device_type() == GP_DEVICE)
omap_smc1(OMAP3_GP_ROMCODE_API_WRITE_L2ACR, l2auxctrl);
/* L2 Cache Auxiliary Control Register is not banked */
}
void v7_arch_cp15_set_acr(u32 acr, u32 cpu_midr, u32 cpu_rev_comb,
u32 cpu_variant, u32 cpu_rev)
{
/* Write ACR - affects secure banked bits */
if (get_device_type() == GP_DEVICE)
omap_smc1(OMAP3_GP_ROMCODE_API_WRITE_ACR, acr);
else
omap3_set_aux_cr_secure(acr);
/* Write ACR - affects non-secure banked bits - some erratas need it */
asm volatile ("mcr p15, 0, %0, c1, c0, 1" : : "r" (acr));
}
#ifndef CONFIG_SYS_L2CACHE_OFF
static void omap3_update_aux_cr(u32 set_bits, u32 clear_bits)
{
u32 acr;
/* Read ACR */
asm volatile ("mrc p15, 0, %0, c1, c0, 1" : "=r" (acr));
acr &= ~clear_bits;
acr |= set_bits;
v7_arch_cp15_set_acr(acr, 0, 0, 0, 0);
}
/* Invalidate the entire L2 cache from secure mode */
static void omap3_invalidate_l2_cache_secure(void)
{
if (get_device_type() == GP_DEVICE) {
omap_smc1(OMAP3_GP_ROMCODE_API_L2_INVAL, 0);
} else {
struct emu_hal_params emu_romcode_params;
emu_romcode_params.num_params = 1;
emu_romcode_params.param1 = 0;
omap3_emu_romcode_call(OMAP3_EMU_HAL_API_L2_INVAL,
(u32 *)&emu_romcode_params);
}
}
void v7_outer_cache_enable(void)
{
/*
* Set L2EN
* On some revisions L2EN bit is banked on some revisions it's not
* No harm in setting both banked bits(in fact this is required
* by an erratum)
*/
omap3_update_aux_cr(0x2, 0);
}
void omap3_outer_cache_disable(void)
{
/*
* Clear L2EN
* On some revisions L2EN bit is banked on some revisions it's not
* No harm in clearing both banked bits(in fact this is required
* by an erratum)
*/
omap3_update_aux_cr(0, 0x2);
}
#endif /* !CONFIG_SYS_L2CACHE_OFF */
source/bootloader/u-boot-2020.01/arch/arm/mach-omap2/omap3/boot.c
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// SPDX-License-Identifier: GPL-2.0+
/*
* OMAP3 boot
*
* Copyright (C) 2015 Paul Kocialkowski <contact@paulk.fr>
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/sys_proto.h>
#include <spl.h>
static u32 boot_devices[] = {
BOOT_DEVICE_ONENAND,
BOOT_DEVICE_NAND,
BOOT_DEVICE_ONENAND,
BOOT_DEVICE_MMC2,
BOOT_DEVICE_ONENAND,
BOOT_DEVICE_MMC2,
BOOT_DEVICE_MMC1,
BOOT_DEVICE_XIP,
BOOT_DEVICE_XIPWAIT,
BOOT_DEVICE_MMC2,
BOOT_DEVICE_XIP,
BOOT_DEVICE_XIPWAIT,
BOOT_DEVICE_NAND,
BOOT_DEVICE_XIP,
BOOT_DEVICE_XIPWAIT,
BOOT_DEVICE_NAND,
BOOT_DEVICE_ONENAND,
BOOT_DEVICE_MMC2,
BOOT_DEVICE_MMC1,
BOOT_DEVICE_XIP,
BOOT_DEVICE_XIPWAIT,
BOOT_DEVICE_NAND,
BOOT_DEVICE_ONENAND,
BOOT_DEVICE_MMC2,
BOOT_DEVICE_MMC1,
BOOT_DEVICE_XIP,
BOOT_DEVICE_XIPWAIT,
BOOT_DEVICE_NAND,
BOOT_DEVICE_MMC2_2,
};
u32 omap_sys_boot_device(void)
{
struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
u32 sys_boot;
/* Grab the first 5 bits of the status register for SYS_BOOT. */
sys_boot = readl(&ctrl_base->status) & ((1 << 5) - 1);
if (sys_boot >= (sizeof(boot_devices) / sizeof(u32)))
return BOOT_DEVICE_NONE;
return boot_devices[sys_boot];
}
int omap_reboot_mode(char *mode, unsigned int length)
{
u32 reboot_mode;
char c;
if (length < 2)
return -1;
reboot_mode = readl((u32 *)(OMAP34XX_SCRATCHPAD +
OMAP_REBOOT_REASON_OFFSET));
c = (reboot_mode >> 24) & 0xff;
if (c != 'B')
return -1;
c = (reboot_mode >> 16) & 0xff;
if (c != 'M')
return -1;
c = reboot_mode & 0xff;
mode[0] = c;
mode[1] = '\0';
return 0;
}
int omap_reboot_mode_clear(void)
{
writel(0, (u32 *)(OMAP34XX_SCRATCHPAD + OMAP_REBOOT_REASON_OFFSET));
return 0;
}
int omap_reboot_mode_store(char *mode)
{
u32 reboot_mode;
reboot_mode = 'B' << 24 | 'M' << 16 | mode[0];
writel(reboot_mode, (u32 *)(OMAP34XX_SCRATCHPAD +
OMAP_REBOOT_REASON_OFFSET));
return 0;
}
source/bootloader/u-boot-2020.01/arch/arm/mach-omap2/omap3/clock.c
+797
View File
@@ -0,0 +1,797 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2008
* Texas Instruments, <www.ti.com>
*
* Author :
* Manikandan Pillai <mani.pillai@ti.com>
*
* Derived from Beagle Board and OMAP3 SDP code by
* Richard Woodruff <r-woodruff2@ti.com>
* Syed Mohammed Khasim <khasim@ti.com>
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/clocks_omap3.h>
#include <asm/arch/mem.h>
#include <asm/arch/sys_proto.h>
#include <command.h>
/******************************************************************************
* get_sys_clk_speed() - determine reference oscillator speed
* based on known 32kHz clock and gptimer.
*****************************************************************************/
u32 get_osc_clk_speed(void)
{
u32 start, cstart, cend, cdiff, cdiv, val;
struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
struct prm *prm_base = (struct prm *)PRM_BASE;
struct gptimer *gpt1_base = (struct gptimer *)OMAP34XX_GPT1;
struct s32ktimer *s32k_base = (struct s32ktimer *)SYNC_32KTIMER_BASE;
val = readl(&prm_base->clksrc_ctrl);
if (val & SYSCLKDIV_2)
cdiv = 2;
else
cdiv = 1;
/* enable timer2 */
val = readl(&prcm_base->clksel_wkup) | CLKSEL_GPT1;
/* select sys_clk for GPT1 */
writel(val, &prcm_base->clksel_wkup);
/* Enable I and F Clocks for GPT1 */
val = readl(&prcm_base->iclken_wkup) | EN_GPT1 | EN_32KSYNC;
writel(val, &prcm_base->iclken_wkup);
val = readl(&prcm_base->fclken_wkup) | EN_GPT1;
writel(val, &prcm_base->fclken_wkup);
writel(0, &gpt1_base->tldr); /* start counting at 0 */
writel(GPT_EN, &gpt1_base->tclr); /* enable clock */
/* enable 32kHz source, determine sys_clk via gauging */
/* start time in 20 cycles */
start = 20 + readl(&s32k_base->s32k_cr);
/* dead loop till start time */
while (readl(&s32k_base->s32k_cr) < start);
/* get start sys_clk count */
cstart = readl(&gpt1_base->tcrr);
/* wait for 40 cycles */
while (readl(&s32k_base->s32k_cr) < (start + 20)) ;
cend = readl(&gpt1_base->tcrr); /* get end sys_clk count */
cdiff = cend - cstart; /* get elapsed ticks */
cdiff *= cdiv;
/* based on number of ticks assign speed */
if (cdiff > 19000)
return S38_4M;
else if (cdiff > 15200)
return S26M;
else if (cdiff > 13000)
return S24M;
else if (cdiff > 9000)
return S19_2M;
else if (cdiff > 7600)
return S13M;
else
return S12M;
}
/******************************************************************************
* get_sys_clkin_sel() - returns the sys_clkin_sel field value based on
* input oscillator clock frequency.
*****************************************************************************/
void get_sys_clkin_sel(u32 osc_clk, u32 *sys_clkin_sel)
{
switch(osc_clk) {
case S38_4M:
*sys_clkin_sel = 4;
break;
case S26M:
*sys_clkin_sel = 3;
break;
case S19_2M:
*sys_clkin_sel = 2;
break;
case S13M:
*sys_clkin_sel = 1;
break;
case S12M:
default:
*sys_clkin_sel = 0;
}
}
/*
* OMAP34XX/35XX specific functions
*/
static void dpll3_init_34xx(u32 sil_index, u32 clk_index)
{
struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
dpll_param *ptr = (dpll_param *) get_core_dpll_param();
void (*f_lock_pll) (u32, u32, u32, u32);
int xip_safe, p0, p1, p2, p3;
xip_safe = is_running_in_sram();
/* Moving to the right sysclk and ES rev base */
ptr = ptr + (3 * clk_index) + sil_index;
if (xip_safe) {
/*
* CORE DPLL
*/
clrsetbits_le32(&prcm_base->clken_pll,
0x00000007, PLL_FAST_RELOCK_BYPASS);
wait_on_value(ST_CORE_CLK, 0, &prcm_base->idlest_ckgen,
LDELAY);
/*
* For OMAP3 ES1.0 Errata 1.50, default value directly doesn't
* work. write another value and then default value.
*/
/* CM_CLKSEL1_EMU[DIV_DPLL3] */
clrsetbits_le32(&prcm_base->clksel1_emu,
0x001F0000, (CORE_M3X2 + 1) << 16) ;
clrsetbits_le32(&prcm_base->clksel1_emu,
0x001F0000, CORE_M3X2 << 16);
/* M2 (CORE_DPLL_CLKOUT_DIV): CM_CLKSEL1_PLL[27:31] */
clrsetbits_le32(&prcm_base->clksel1_pll,
0xF8000000, ptr->m2 << 27);
/* M (CORE_DPLL_MULT): CM_CLKSEL1_PLL[16:26] */
clrsetbits_le32(&prcm_base->clksel1_pll,
0x07FF0000, ptr->m << 16);
/* N (CORE_DPLL_DIV): CM_CLKSEL1_PLL[8:14] */
clrsetbits_le32(&prcm_base->clksel1_pll,
0x00007F00, ptr->n << 8);
/* Source is the CM_96M_FCLK: CM_CLKSEL1_PLL[6] */
clrbits_le32(&prcm_base->clksel1_pll, 0x00000040);
/* SSI */
clrsetbits_le32(&prcm_base->clksel_core,
0x00000F00, CORE_SSI_DIV << 8);
/* FSUSB */
clrsetbits_le32(&prcm_base->clksel_core,
0x00000030, CORE_FUSB_DIV << 4);
/* L4 */
clrsetbits_le32(&prcm_base->clksel_core,
0x0000000C, CORE_L4_DIV << 2);
/* L3 */
clrsetbits_le32(&prcm_base->clksel_core,
0x00000003, CORE_L3_DIV);
/* GFX */
clrsetbits_le32(&prcm_base->clksel_gfx,
0x00000007, GFX_DIV);
/* RESET MGR */
clrsetbits_le32(&prcm_base->clksel_wkup,
0x00000006, WKUP_RSM << 1);
/* FREQSEL (CORE_DPLL_FREQSEL): CM_CLKEN_PLL[4:7] */
clrsetbits_le32(&prcm_base->clken_pll,
0x000000F0, ptr->fsel << 4);
/* LOCK MODE */
clrsetbits_le32(&prcm_base->clken_pll,
0x00000007, PLL_LOCK);
wait_on_value(ST_CORE_CLK, 1, &prcm_base->idlest_ckgen,
LDELAY);
} else if (is_running_in_flash()) {
/*
* if running from flash, jump to small relocated code
* area in SRAM.
*/
f_lock_pll = (void *) (SRAM_CLK_CODE);
p0 = readl(&prcm_base->clken_pll);
clrsetbits_le32(&p0, 0x00000007, PLL_FAST_RELOCK_BYPASS);
/* FREQSEL (CORE_DPLL_FREQSEL): CM_CLKEN_PLL[4:7] */
clrsetbits_le32(&p0, 0x000000F0, ptr->fsel << 4);
p1 = readl(&prcm_base->clksel1_pll);
/* M2 (CORE_DPLL_CLKOUT_DIV): CM_CLKSEL1_PLL[27:31] */
clrsetbits_le32(&p1, 0xF8000000, ptr->m2 << 27);
/* M (CORE_DPLL_MULT): CM_CLKSEL1_PLL[16:26] */
clrsetbits_le32(&p1, 0x07FF0000, ptr->m << 16);
/* N (CORE_DPLL_DIV): CM_CLKSEL1_PLL[8:14] */
clrsetbits_le32(&p1, 0x00007F00, ptr->n << 8);
/* Source is the CM_96M_FCLK: CM_CLKSEL1_PLL[6] */
clrbits_le32(&p1, 0x00000040);
p2 = readl(&prcm_base->clksel_core);
/* SSI */
clrsetbits_le32(&p2, 0x00000F00, CORE_SSI_DIV << 8);
/* FSUSB */
clrsetbits_le32(&p2, 0x00000030, CORE_FUSB_DIV << 4);
/* L4 */
clrsetbits_le32(&p2, 0x0000000C, CORE_L4_DIV << 2);
/* L3 */
clrsetbits_le32(&p2, 0x00000003, CORE_L3_DIV);
p3 = (u32)&prcm_base->idlest_ckgen;
(*f_lock_pll) (p0, p1, p2, p3);
}
}
static void dpll4_init_34xx(u32 sil_index, u32 clk_index)
{
struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
dpll_param *ptr = (dpll_param *) get_per_dpll_param();
/* Moving it to the right sysclk base */
ptr = ptr + clk_index;
/* EN_PERIPH_DPLL: CM_CLKEN_PLL[16:18] */
clrsetbits_le32(&prcm_base->clken_pll, 0x00070000, PLL_STOP << 16);
wait_on_value(ST_PERIPH_CLK, 0, &prcm_base->idlest_ckgen, LDELAY);
/*
* Errata 1.50 Workaround for OMAP3 ES1.0 only
* If using default divisors, write default divisor + 1
* and then the actual divisor value
*/
/* M6 */
clrsetbits_le32(&prcm_base->clksel1_emu,
0x1F000000, (PER_M6X2 + 1) << 24);
clrsetbits_le32(&prcm_base->clksel1_emu,
0x1F000000, PER_M6X2 << 24);
/* M5 */
clrsetbits_le32(&prcm_base->clksel_cam, 0x0000001F, (PER_M5X2 + 1));
clrsetbits_le32(&prcm_base->clksel_cam, 0x0000001F, PER_M5X2);
/* M4 */
clrsetbits_le32(&prcm_base->clksel_dss, 0x0000001F, (PER_M4X2 + 1));
clrsetbits_le32(&prcm_base->clksel_dss, 0x0000001F, PER_M4X2);
/* M3 */
clrsetbits_le32(&prcm_base->clksel_dss,
0x00001F00, (PER_M3X2 + 1) << 8);
clrsetbits_le32(&prcm_base->clksel_dss,
0x00001F00, PER_M3X2 << 8);
/* M2 (DIV_96M): CM_CLKSEL3_PLL[0:4] */
clrsetbits_le32(&prcm_base->clksel3_pll, 0x0000001F, (ptr->m2 + 1));
clrsetbits_le32(&prcm_base->clksel3_pll, 0x0000001F, ptr->m2);
/* Workaround end */
/* M (PERIPH_DPLL_MULT): CM_CLKSEL2_PLL[8:18] */
clrsetbits_le32(&prcm_base->clksel2_pll,
0x0007FF00, ptr->m << 8);
/* N (PERIPH_DPLL_DIV): CM_CLKSEL2_PLL[0:6] */
clrsetbits_le32(&prcm_base->clksel2_pll, 0x0000007F, ptr->n);
/* FREQSEL (PERIPH_DPLL_FREQSEL): CM_CLKEN_PLL[20:23] */
clrsetbits_le32(&prcm_base->clken_pll, 0x00F00000, ptr->fsel << 20);
/* LOCK MODE (EN_PERIPH_DPLL): CM_CLKEN_PLL[16:18] */
clrsetbits_le32(&prcm_base->clken_pll, 0x00070000, PLL_LOCK << 16);
wait_on_value(ST_PERIPH_CLK, 2, &prcm_base->idlest_ckgen, LDELAY);
}
static void dpll5_init_34xx(u32 sil_index, u32 clk_index)
{
struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
dpll_param *ptr = (dpll_param *) get_per2_dpll_param();
/* Moving it to the right sysclk base */
ptr = ptr + clk_index;
/* PER2 DPLL (DPLL5) */
clrsetbits_le32(&prcm_base->clken2_pll, 0x00000007, PLL_STOP);
wait_on_value(1, 0, &prcm_base->idlest2_ckgen, LDELAY);
/* set M2 (usbtll_fck) */
clrsetbits_le32(&prcm_base->clksel5_pll, 0x0000001F, ptr->m2);
/* set m (11-bit multiplier) */
clrsetbits_le32(&prcm_base->clksel4_pll, 0x0007FF00, ptr->m << 8);
/* set n (7-bit divider)*/
clrsetbits_le32(&prcm_base->clksel4_pll, 0x0000007F, ptr->n);
/* FREQSEL */
clrsetbits_le32(&prcm_base->clken_pll, 0x000000F0, ptr->fsel << 4);
/* lock mode */
clrsetbits_le32(&prcm_base->clken2_pll, 0x00000007, PLL_LOCK);
wait_on_value(1, 1, &prcm_base->idlest2_ckgen, LDELAY);
}
static void mpu_init_34xx(u32 sil_index, u32 clk_index)
{
struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
dpll_param *ptr = (dpll_param *) get_mpu_dpll_param();
/* Moving to the right sysclk and ES rev base */
ptr = ptr + (3 * clk_index) + sil_index;
/* MPU DPLL (unlocked already) */
/* M2 (MPU_DPLL_CLKOUT_DIV) : CM_CLKSEL2_PLL_MPU[0:4] */
clrsetbits_le32(&prcm_base->clksel2_pll_mpu,
0x0000001F, ptr->m2);
/* M (MPU_DPLL_MULT) : CM_CLKSEL2_PLL_MPU[8:18] */
clrsetbits_le32(&prcm_base->clksel1_pll_mpu,
0x0007FF00, ptr->m << 8);
/* N (MPU_DPLL_DIV) : CM_CLKSEL2_PLL_MPU[0:6] */
clrsetbits_le32(&prcm_base->clksel1_pll_mpu,
0x0000007F, ptr->n);
/* FREQSEL (MPU_DPLL_FREQSEL) : CM_CLKEN_PLL_MPU[4:7] */
clrsetbits_le32(&prcm_base->clken_pll_mpu,
0x000000F0, ptr->fsel << 4);
}
static void iva_init_34xx(u32 sil_index, u32 clk_index)
{
struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
dpll_param *ptr = (dpll_param *) get_iva_dpll_param();
/* Moving to the right sysclk and ES rev base */
ptr = ptr + (3 * clk_index) + sil_index;
/* IVA DPLL */
/* EN_IVA2_DPLL : CM_CLKEN_PLL_IVA2[0:2] */
clrsetbits_le32(&prcm_base->clken_pll_iva2,
0x00000007, PLL_STOP);
wait_on_value(ST_IVA2_CLK, 0, &prcm_base->idlest_pll_iva2, LDELAY);
/* M2 (IVA2_DPLL_CLKOUT_DIV) : CM_CLKSEL2_PLL_IVA2[0:4] */
clrsetbits_le32(&prcm_base->clksel2_pll_iva2,
0x0000001F, ptr->m2);
/* M (IVA2_DPLL_MULT) : CM_CLKSEL1_PLL_IVA2[8:18] */
clrsetbits_le32(&prcm_base->clksel1_pll_iva2,
0x0007FF00, ptr->m << 8);
/* N (IVA2_DPLL_DIV) : CM_CLKSEL1_PLL_IVA2[0:6] */
clrsetbits_le32(&prcm_base->clksel1_pll_iva2,
0x0000007F, ptr->n);
/* FREQSEL (IVA2_DPLL_FREQSEL) : CM_CLKEN_PLL_IVA2[4:7] */
clrsetbits_le32(&prcm_base->clken_pll_iva2,
0x000000F0, ptr->fsel << 4);
/* LOCK MODE (EN_IVA2_DPLL) : CM_CLKEN_PLL_IVA2[0:2] */
clrsetbits_le32(&prcm_base->clken_pll_iva2,
0x00000007, PLL_LOCK);
wait_on_value(ST_IVA2_CLK, 1, &prcm_base->idlest_pll_iva2, LDELAY);
}
/*
* OMAP3630 specific functions
*/
static void dpll3_init_36xx(u32 sil_index, u32 clk_index)
{
struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
dpll_param *ptr = (dpll_param *) get_36x_core_dpll_param();
void (*f_lock_pll) (u32, u32, u32, u32);
int xip_safe, p0, p1, p2, p3;
xip_safe = is_running_in_sram();
/* Moving it to the right sysclk base */
ptr += clk_index;
if (xip_safe) {
/* CORE DPLL */
/* Select relock bypass: CM_CLKEN_PLL[0:2] */
clrsetbits_le32(&prcm_base->clken_pll,
0x00000007, PLL_FAST_RELOCK_BYPASS);
wait_on_value(ST_CORE_CLK, 0, &prcm_base->idlest_ckgen,
LDELAY);
/* CM_CLKSEL1_EMU[DIV_DPLL3] */
clrsetbits_le32(&prcm_base->clksel1_emu,
0x001F0000, CORE_M3X2 << 16);
/* M2 (CORE_DPLL_CLKOUT_DIV): CM_CLKSEL1_PLL[27:31] */
clrsetbits_le32(&prcm_base->clksel1_pll,
0xF8000000, ptr->m2 << 27);
/* M (CORE_DPLL_MULT): CM_CLKSEL1_PLL[16:26] */
clrsetbits_le32(&prcm_base->clksel1_pll,
0x07FF0000, ptr->m << 16);
/* N (CORE_DPLL_DIV): CM_CLKSEL1_PLL[8:14] */
clrsetbits_le32(&prcm_base->clksel1_pll,
0x00007F00, ptr->n << 8);
/* Source is the CM_96M_FCLK: CM_CLKSEL1_PLL[6] */
clrbits_le32(&prcm_base->clksel1_pll, 0x00000040);
/* SSI */
clrsetbits_le32(&prcm_base->clksel_core,
0x00000F00, CORE_SSI_DIV << 8);
/* FSUSB */
clrsetbits_le32(&prcm_base->clksel_core,
0x00000030, CORE_FUSB_DIV << 4);
/* L4 */
clrsetbits_le32(&prcm_base->clksel_core,
0x0000000C, CORE_L4_DIV << 2);
/* L3 */
clrsetbits_le32(&prcm_base->clksel_core,
0x00000003, CORE_L3_DIV);
/* GFX */
clrsetbits_le32(&prcm_base->clksel_gfx,
0x00000007, GFX_DIV_36X);
/* RESET MGR */
clrsetbits_le32(&prcm_base->clksel_wkup,
0x00000006, WKUP_RSM << 1);
/* FREQSEL (CORE_DPLL_FREQSEL): CM_CLKEN_PLL[4:7] */
clrsetbits_le32(&prcm_base->clken_pll,
0x000000F0, ptr->fsel << 4);
/* LOCK MODE */
clrsetbits_le32(&prcm_base->clken_pll,
0x00000007, PLL_LOCK);
wait_on_value(ST_CORE_CLK, 1, &prcm_base->idlest_ckgen,
LDELAY);
} else if (is_running_in_flash()) {
/*
* if running from flash, jump to small relocated code
* area in SRAM.
*/
f_lock_pll = (void *) (SRAM_CLK_CODE);
p0 = readl(&prcm_base->clken_pll);
clrsetbits_le32(&p0, 0x00000007, PLL_FAST_RELOCK_BYPASS);
/* FREQSEL (CORE_DPLL_FREQSEL): CM_CLKEN_PLL[4:7] */
clrsetbits_le32(&p0, 0x000000F0, ptr->fsel << 4);
p1 = readl(&prcm_base->clksel1_pll);
/* M2 (CORE_DPLL_CLKOUT_DIV): CM_CLKSEL1_PLL[27:31] */
clrsetbits_le32(&p1, 0xF8000000, ptr->m2 << 27);
/* M (CORE_DPLL_MULT): CM_CLKSEL1_PLL[16:26] */
clrsetbits_le32(&p1, 0x07FF0000, ptr->m << 16);
/* N (CORE_DPLL_DIV): CM_CLKSEL1_PLL[8:14] */
clrsetbits_le32(&p1, 0x00007F00, ptr->n << 8);
/* Source is the CM_96M_FCLK: CM_CLKSEL1_PLL[6] */
clrbits_le32(&p1, 0x00000040);
p2 = readl(&prcm_base->clksel_core);
/* SSI */
clrsetbits_le32(&p2, 0x00000F00, CORE_SSI_DIV << 8);
/* FSUSB */
clrsetbits_le32(&p2, 0x00000030, CORE_FUSB_DIV << 4);
/* L4 */
clrsetbits_le32(&p2, 0x0000000C, CORE_L4_DIV << 2);
/* L3 */
clrsetbits_le32(&p2, 0x00000003, CORE_L3_DIV);
p3 = (u32)&prcm_base->idlest_ckgen;
(*f_lock_pll) (p0, p1, p2, p3);
}
}
static void dpll4_init_36xx(u32 sil_index, u32 clk_index)
{
struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
struct dpll_per_36x_param *ptr;
ptr = (struct dpll_per_36x_param *)get_36x_per_dpll_param();
/* Moving it to the right sysclk base */
ptr += clk_index;
/* EN_PERIPH_DPLL: CM_CLKEN_PLL[16:18] */
clrsetbits_le32(&prcm_base->clken_pll, 0x00070000, PLL_STOP << 16);
wait_on_value(ST_PERIPH_CLK, 0, &prcm_base->idlest_ckgen, LDELAY);
/* M6 (DIV_DPLL4): CM_CLKSEL1_EMU[24:29] */
clrsetbits_le32(&prcm_base->clksel1_emu, 0x3F000000, ptr->m6 << 24);
/* M5 (CLKSEL_CAM): CM_CLKSEL1_EMU[0:5] */
clrsetbits_le32(&prcm_base->clksel_cam, 0x0000003F, ptr->m5);
/* M4 (CLKSEL_DSS1): CM_CLKSEL_DSS[0:5] */
clrsetbits_le32(&prcm_base->clksel_dss, 0x0000003F, ptr->m4);
/* M3 (CLKSEL_DSS1): CM_CLKSEL_DSS[8:13] */
clrsetbits_le32(&prcm_base->clksel_dss, 0x00003F00, ptr->m3 << 8);
/* M2 (DIV_96M): CM_CLKSEL3_PLL[0:4] */
clrsetbits_le32(&prcm_base->clksel3_pll, 0x0000001F, ptr->m2);
/* M (PERIPH_DPLL_MULT): CM_CLKSEL2_PLL[8:19] */
clrsetbits_le32(&prcm_base->clksel2_pll, 0x000FFF00, ptr->m << 8);
/* N (PERIPH_DPLL_DIV): CM_CLKSEL2_PLL[0:6] */
clrsetbits_le32(&prcm_base->clksel2_pll, 0x0000007F, ptr->n);
/* M2DIV (CLKSEL_96M): CM_CLKSEL_CORE[12:13] */
clrsetbits_le32(&prcm_base->clksel_core, 0x00003000, ptr->m2div << 12);
/* LOCK MODE (EN_PERIPH_DPLL): CM_CLKEN_PLL[16:18] */
clrsetbits_le32(&prcm_base->clken_pll, 0x00070000, PLL_LOCK << 16);
wait_on_value(ST_PERIPH_CLK, 2, &prcm_base->idlest_ckgen, LDELAY);
}
static void dpll5_init_36xx(u32 sil_index, u32 clk_index)
{
struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
dpll_param *ptr = (dpll_param *) get_36x_per2_dpll_param();
/* Moving it to the right sysclk base */
ptr = ptr + clk_index;
/* PER2 DPLL (DPLL5) */
clrsetbits_le32(&prcm_base->clken2_pll, 0x00000007, PLL_STOP);
wait_on_value(1, 0, &prcm_base->idlest2_ckgen, LDELAY);
/* set M2 (usbtll_fck) */
clrsetbits_le32(&prcm_base->clksel5_pll, 0x0000001F, ptr->m2);
/* set m (11-bit multiplier) */
clrsetbits_le32(&prcm_base->clksel4_pll, 0x0007FF00, ptr->m << 8);
/* set n (7-bit divider)*/
clrsetbits_le32(&prcm_base->clksel4_pll, 0x0000007F, ptr->n);
/* lock mode */
clrsetbits_le32(&prcm_base->clken2_pll, 0x00000007, PLL_LOCK);
wait_on_value(1, 1, &prcm_base->idlest2_ckgen, LDELAY);
}
static void mpu_init_36xx(u32 sil_index, u32 clk_index)
{
struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
dpll_param *ptr = (dpll_param *) get_36x_mpu_dpll_param();
/* Moving to the right sysclk */
ptr += clk_index;
/* MPU DPLL (unlocked already */
/* M2 (MPU_DPLL_CLKOUT_DIV) : CM_CLKSEL2_PLL_MPU[0:4] */
clrsetbits_le32(&prcm_base->clksel2_pll_mpu, 0x0000001F, ptr->m2);
/* M (MPU_DPLL_MULT) : CM_CLKSEL2_PLL_MPU[8:18] */
clrsetbits_le32(&prcm_base->clksel1_pll_mpu, 0x0007FF00, ptr->m << 8);
/* N (MPU_DPLL_DIV) : CM_CLKSEL2_PLL_MPU[0:6] */
clrsetbits_le32(&prcm_base->clksel1_pll_mpu, 0x0000007F, ptr->n);
}
static void iva_init_36xx(u32 sil_index, u32 clk_index)
{
struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
dpll_param *ptr = (dpll_param *)get_36x_iva_dpll_param();
/* Moving to the right sysclk */
ptr += clk_index;
/* IVA DPLL */
/* EN_IVA2_DPLL : CM_CLKEN_PLL_IVA2[0:2] */
clrsetbits_le32(&prcm_base->clken_pll_iva2, 0x00000007, PLL_STOP);
wait_on_value(ST_IVA2_CLK, 0, &prcm_base->idlest_pll_iva2, LDELAY);
/* M2 (IVA2_DPLL_CLKOUT_DIV) : CM_CLKSEL2_PLL_IVA2[0:4] */
clrsetbits_le32(&prcm_base->clksel2_pll_iva2, 0x0000001F, ptr->m2);
/* M (IVA2_DPLL_MULT) : CM_CLKSEL1_PLL_IVA2[8:18] */
clrsetbits_le32(&prcm_base->clksel1_pll_iva2, 0x0007FF00, ptr->m << 8);
/* N (IVA2_DPLL_DIV) : CM_CLKSEL1_PLL_IVA2[0:6] */
clrsetbits_le32(&prcm_base->clksel1_pll_iva2, 0x0000007F, ptr->n);
/* LOCK (MODE (EN_IVA2_DPLL) : CM_CLKEN_PLL_IVA2[0:2] */
clrsetbits_le32(&prcm_base->clken_pll_iva2, 0x00000007, PLL_LOCK);
wait_on_value(ST_IVA2_CLK, 1, &prcm_base->idlest_pll_iva2, LDELAY);
}
/******************************************************************************
* prcm_init() - inits clocks for PRCM as defined in clocks.h
* called from SRAM, or Flash (using temp SRAM stack).
*****************************************************************************/
void prcm_init(void)
{
u32 osc_clk = 0, sys_clkin_sel;
u32 clk_index, sil_index = 0;
struct prm *prm_base = (struct prm *)PRM_BASE;
struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
/*
* Gauge the input clock speed and find out the sys_clkin_sel
* value corresponding to the input clock.
*/
osc_clk = get_osc_clk_speed();
get_sys_clkin_sel(osc_clk, &sys_clkin_sel);
/* set input crystal speed */
clrsetbits_le32(&prm_base->clksel, 0x00000007, sys_clkin_sel);
/* If the input clock is greater than 19.2M always divide/2 */
if (sys_clkin_sel > 2) {
/* input clock divider */
clrsetbits_le32(&prm_base->clksrc_ctrl, 0x000000C0, 2 << 6);
clk_index = sys_clkin_sel / 2;
} else {
/* input clock divider */
clrsetbits_le32(&prm_base->clksrc_ctrl, 0x000000C0, 1 << 6);
clk_index = sys_clkin_sel;
}
if (get_cpu_family() == CPU_OMAP36XX) {
/*
* In warm reset conditions on OMAP36xx/AM/DM37xx
* the rom code incorrectly sets the DPLL4 clock
* input divider to /6.5. Section 3.5.3.3.3.2.1 of
* the AM/DM37x TRM explains that the /6.5 divider
* is used only when the input clock is 13MHz.
*
* If the part is in this cpu family *and* the input
* clock *is not* 13 MHz, then reset the DPLL4 clock
* input divider to /1 as it should never set to /6.5
* in this case.
*/
if (sys_clkin_sel != 1) { /* 13 MHz */
/* Bit 8: DPLL4_CLKINP_DIV */
clrbits_le32(&prm_base->clksrc_ctrl, 0x00000100);
}
/* Unlock MPU DPLL (slows things down, and needed later) */
clrsetbits_le32(&prcm_base->clken_pll_mpu,
0x00000007, PLL_LOW_POWER_BYPASS);
wait_on_value(ST_MPU_CLK, 0, &prcm_base->idlest_pll_mpu,
LDELAY);
dpll3_init_36xx(0, clk_index);
dpll4_init_36xx(0, clk_index);
dpll5_init_36xx(0, clk_index);
iva_init_36xx(0, clk_index);
mpu_init_36xx(0, clk_index);
/* Lock MPU DPLL to set frequency */
clrsetbits_le32(&prcm_base->clken_pll_mpu,
0x00000007, PLL_LOCK);
wait_on_value(ST_MPU_CLK, 1, &prcm_base->idlest_pll_mpu,
LDELAY);
} else {
/*
* The DPLL tables are defined according to sysclk value and
* silicon revision. The clk_index value will be used to get
* the values for that input sysclk from the DPLL param table
* and sil_index will get the values for that SysClk for the
* appropriate silicon rev.
*/
if (((get_cpu_family() == CPU_OMAP34XX)
&& (get_cpu_rev() >= CPU_3XX_ES20)) ||
(get_cpu_family() == CPU_AM35XX))
sil_index = 1;
/* Unlock MPU DPLL (slows things down, and needed later) */
clrsetbits_le32(&prcm_base->clken_pll_mpu,
0x00000007, PLL_LOW_POWER_BYPASS);
wait_on_value(ST_MPU_CLK, 0, &prcm_base->idlest_pll_mpu,
LDELAY);
dpll3_init_34xx(sil_index, clk_index);
dpll4_init_34xx(sil_index, clk_index);
dpll5_init_34xx(sil_index, clk_index);
if (get_cpu_family() != CPU_AM35XX)
iva_init_34xx(sil_index, clk_index);
mpu_init_34xx(sil_index, clk_index);
/* Lock MPU DPLL to set frequency */
clrsetbits_le32(&prcm_base->clken_pll_mpu,
0x00000007, PLL_LOCK);
wait_on_value(ST_MPU_CLK, 1, &prcm_base->idlest_pll_mpu,
LDELAY);
}
/* Set up GPTimers to sys_clk source only */
setbits_le32(&prcm_base->clksel_per, 0x000000FF);
setbits_le32(&prcm_base->clksel_wkup, 1);
sdelay(5000);
}
/*
* Enable usb ehci uhh, tll clocks
*/
void ehci_clocks_enable(void)
{
struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
/* Enable USBHOST_L3_ICLK (USBHOST_MICLK) */
setbits_le32(&prcm_base->iclken_usbhost, 1);
/*
* Enable USBHOST_48M_FCLK (USBHOST_FCLK1)
* and USBHOST_120M_FCLK (USBHOST_FCLK2)
*/
setbits_le32(&prcm_base->fclken_usbhost, 0x00000003);
/* Enable USBTTL_ICLK */
setbits_le32(&prcm_base->iclken3_core, 0x00000004);
/* Enable USBTTL_FCLK */
setbits_le32(&prcm_base->fclken3_core, 0x00000004);
}
/******************************************************************************
* peripheral_enable() - Enable the clks & power for perifs (GPT2, UART1,...)
*****************************************************************************/
void per_clocks_enable(void)
{
struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
/* Enable GP2 timer. */
setbits_le32(&prcm_base->clksel_per, 0x01); /* GPT2 = sys clk */
setbits_le32(&prcm_base->iclken_per, 0x08); /* ICKen GPT2 */
setbits_le32(&prcm_base->fclken_per, 0x08); /* FCKen GPT2 */
/* Enable GP9 timer. */
setbits_le32(&prcm_base->clksel_per, 0x80); /* GPT9 = 32kHz clk */
setbits_le32(&prcm_base->iclken_per, 0x400); /* ICKen GPT9 */
setbits_le32(&prcm_base->fclken_per, 0x400); /* FCKen GPT9 */
#ifdef CONFIG_SYS_NS16550
/* Enable UART1 clocks */
setbits_le32(&prcm_base->fclken1_core, 0x00002000);
setbits_le32(&prcm_base->iclken1_core, 0x00002000);
/* Enable UART2 clocks */
setbits_le32(&prcm_base->fclken1_core, 0x00004000);
setbits_le32(&prcm_base->iclken1_core, 0x00004000);
/* UART 3 Clocks */
setbits_le32(&prcm_base->fclken_per, 0x00000800);
setbits_le32(&prcm_base->iclken_per, 0x00000800);
#endif
#if defined(CONFIG_OMAP3_GPIO_2)
setbits_le32(&prcm_base->fclken_per, 0x00002000);
setbits_le32(&prcm_base->iclken_per, 0x00002000);
#endif
#if defined(CONFIG_OMAP3_GPIO_3)
setbits_le32(&prcm_base->fclken_per, 0x00004000);
setbits_le32(&prcm_base->iclken_per, 0x00004000);
#endif
#if defined(CONFIG_OMAP3_GPIO_4)
setbits_le32(&prcm_base->fclken_per, 0x00008000);
setbits_le32(&prcm_base->iclken_per, 0x00008000);
#endif
#if defined(CONFIG_OMAP3_GPIO_5)
setbits_le32(&prcm_base->fclken_per, 0x00010000);
setbits_le32(&prcm_base->iclken_per, 0x00010000);
#endif
#if defined(CONFIG_OMAP3_GPIO_6)
setbits_le32(&prcm_base->fclken_per, 0x00020000);
setbits_le32(&prcm_base->iclken_per, 0x00020000);
#endif
#ifdef CONFIG_SYS_I2C_OMAP24XX
/* Turn on all 3 I2C clocks */
setbits_le32(&prcm_base->fclken1_core, 0x00038000);
setbits_le32(&prcm_base->iclken1_core, 0x00038000); /* I2C1,2,3 = on */
#endif
/* Enable the ICLK for 32K Sync Timer as its used in udelay */
setbits_le32(&prcm_base->iclken_wkup, 0x00000004);
if (get_cpu_family() != CPU_AM35XX)
out_le32(&prcm_base->fclken_iva2, FCK_IVA2_ON);
out_le32(&prcm_base->fclken1_core, FCK_CORE1_ON);
out_le32(&prcm_base->iclken1_core, ICK_CORE1_ON);
out_le32(&prcm_base->iclken2_core, ICK_CORE2_ON);
out_le32(&prcm_base->fclken_wkup, FCK_WKUP_ON);
out_le32(&prcm_base->iclken_wkup, ICK_WKUP_ON);
out_le32(&prcm_base->fclken_dss, FCK_DSS_ON);
out_le32(&prcm_base->iclken_dss, ICK_DSS_ON);
if (get_cpu_family() != CPU_AM35XX) {
out_le32(&prcm_base->fclken_cam, FCK_CAM_ON);
out_le32(&prcm_base->iclken_cam, ICK_CAM_ON);
}
sdelay(1000);
}
source/bootloader/u-boot-2020.01/arch/arm/mach-omap2/omap3/emac.c
+27
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@@ -0,0 +1,27 @@
// SPDX-License-Identifier: GPL-2.0+
/*
*
* DaVinci EMAC initialization.
*
* (C) Copyright 2011, Ilya Yanok, Emcraft Systems
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/am35x_def.h>
/*
* Initializes on-chip ethernet controllers.
* to override, implement board_eth_init()
*/
int cpu_eth_init(bd_t *bis)
{
u32 reset;
/* ensure that the module is out of reset */
reset = readl(&am35x_scm_general_regs->ip_sw_reset);
reset &= ~CPGMACSS_SW_RST;
writel(reset, &am35x_scm_general_regs->ip_sw_reset);
return 0;
}
source/bootloader/u-boot-2020.01/arch/arm/mach-omap2/omap3/emif4.c
+166
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@@ -0,0 +1,166 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Author :
* Vaibhav Hiremath <hvaibhav@ti.com>
*
* Based on mem.c and sdrc.c
*
* Copyright (C) 2010
* Texas Instruments Incorporated - http://www.ti.com/
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/mem.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/emif4.h>
DECLARE_GLOBAL_DATA_PTR;
extern omap3_sysinfo sysinfo;
static emif4_t *emif4_base = (emif4_t *)OMAP34XX_SDRC_BASE;
/*
* is_mem_sdr -
* - Return 1 if mem type in use is SDR
*/
u32 is_mem_sdr(void)
{
return 0;
}
/*
* get_sdr_cs_size -
* - Get size of chip select 0/1
*/
u32 get_sdr_cs_size(u32 cs)
{
u32 size = 0;
/* TODO: Calculate the size based on EMIF4 configuration */
if (cs == CS0)
size = CONFIG_SYS_CS0_SIZE;
return size;
}
/*
* get_sdr_cs_offset -
* - Get offset of cs from cs0 start
*/
u32 get_sdr_cs_offset(u32 cs)
{
u32 offset = 0;
return offset;
}
/*
* do_emif4_init -
* - Init the emif4 module for DDR access
* - Early init routines, called from flash or SRAM.
*/
static void do_emif4_init(void)
{
unsigned int regval;
/* Set the DDR PHY parameters in PHY ctrl registers */
regval = (EMIF4_DDR1_READ_LAT | EMIF4_DDR1_PWRDN_DIS |
EMIF4_DDR1_EXT_STRB_DIS);
writel(regval, &emif4_base->ddr_phyctrl1);
writel(regval, &emif4_base->ddr_phyctrl1_shdw);
writel(0, &emif4_base->ddr_phyctrl2);
/* Reset the DDR PHY and wait till completed */
regval = readl(&emif4_base->sdram_iodft_tlgc);
regval |= (1<<10);
writel(regval, &emif4_base->sdram_iodft_tlgc);
/*Wait till that bit clears*/
while ((readl(&emif4_base->sdram_iodft_tlgc) & (1<<10)) != 0x0);
/*Re-verify the DDR PHY status*/
while ((readl(&emif4_base->sdram_sts) & (1<<2)) == 0x0);
regval |= (1<<0);
writel(regval, &emif4_base->sdram_iodft_tlgc);
/* Set SDR timing registers */
regval = (EMIF4_TIM1_T_WTR | EMIF4_TIM1_T_RRD |
EMIF4_TIM1_T_RC | EMIF4_TIM1_T_RAS |
EMIF4_TIM1_T_WR | EMIF4_TIM1_T_RCD |
EMIF4_TIM1_T_RP);
writel(regval, &emif4_base->sdram_time1);
writel(regval, &emif4_base->sdram_time1_shdw);
regval = (EMIF4_TIM2_T_CKE | EMIF4_TIM2_T_RTP |
EMIF4_TIM2_T_XSRD | EMIF4_TIM2_T_XSNR |
EMIF4_TIM2_T_ODT | EMIF4_TIM2_T_XP);
writel(regval, &emif4_base->sdram_time2);
writel(regval, &emif4_base->sdram_time2_shdw);
regval = (EMIF4_TIM3_T_RAS_MAX | EMIF4_TIM3_T_RFC);
writel(regval, &emif4_base->sdram_time3);
writel(regval, &emif4_base->sdram_time3_shdw);
/* Set the PWR control register */
regval = (EMIF4_PWR_PM_TIM | EMIF4_PWR_LP_MODE |
EMIF4_PWR_DPD_DIS | EMIF4_PWR_IDLE_MODE);
writel(regval, &emif4_base->sdram_pwr_mgmt);
writel(regval, &emif4_base->sdram_pwr_mgmt_shdw);
/* Set the DDR refresh rate control register */
regval = (EMIF4_REFRESH_RATE | EMIF4_INITREF_DIS);
writel(regval, &emif4_base->sdram_refresh_ctrl);
writel(regval, &emif4_base->sdram_refresh_ctrl_shdw);
/* set the SDRAM configuration register */
regval = (EMIF4_CFG_PGSIZE | EMIF4_CFG_EBANK |
EMIF4_CFG_IBANK | EMIF4_CFG_ROWSIZE |
EMIF4_CFG_CL | EMIF4_CFG_NARROW_MD |
EMIF4_CFG_SDR_DRV | EMIF4_CFG_DDR_DIS_DLL |
EMIF4_CFG_DDR2_DDQS | EMIF4_CFG_DDR_TERM |
EMIF4_CFG_IBANK_POS | EMIF4_CFG_SDRAM_TYP);
writel(regval, &emif4_base->sdram_config);
}
/*
* dram_init -
* - Sets uboots idea of sdram size
*/
int dram_init(void)
{
unsigned int size0 = 0, size1 = 0;
size0 = get_sdr_cs_size(CS0);
/*
* If a second bank of DDR is attached to CS1 this is
* where it can be started. Early init code will init
* memory on CS0.
*/
if ((sysinfo.mtype == DDR_COMBO) || (sysinfo.mtype == DDR_STACKED))
size1 = get_sdr_cs_size(CS1);
gd->ram_size = size0 + size1;
return 0;
}
int dram_init_banksize(void)
{
unsigned int size0 = 0, size1 = 0;
size0 = get_sdr_cs_size(CS0);
size1 = get_sdr_cs_size(CS1);
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
gd->bd->bi_dram[0].size = size0;
gd->bd->bi_dram[1].start = PHYS_SDRAM_1 + get_sdr_cs_offset(CS1);
gd->bd->bi_dram[1].size = size1;
return 0;
}
/*
* mem_init() -
* - Initialize memory subsystem
*/
void mem_init(void)
{
do_emif4_init();
}
source/bootloader/u-boot-2020.01/arch/arm/mach-omap2/omap3/hw_data.c
+18
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@@ -0,0 +1,18 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* HW data initialization for OMAP3.
*
* (C) Copyright 2017 Linaro Ltd.
* Sam Protsenko <semen.protsenko@linaro.org>
*/
#include <asm/arch/omap.h>
#include <asm/omap_common.h>
struct omap_sys_ctrl_regs const **ctrl =
(struct omap_sys_ctrl_regs const **)OMAP_SRAM_SCRATCH_SYS_CTRL;
void hw_data_init(void)
{
*ctrl = &omap3_ctrl;
}
source/bootloader/u-boot-2020.01/arch/arm/mach-omap2/omap3/lowlevel_init.S
+476
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@@ -0,0 +1,476 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Board specific setup info
*
* (C) Copyright 2008
* Texas Instruments, <www.ti.com>
*
* Initial Code by:
* Richard Woodruff <r-woodruff2@ti.com>
* Syed Mohammed Khasim <khasim@ti.com>
*/
#include <config.h>
#include <asm/arch/mem.h>
#include <asm/arch/clocks_omap3.h>
#include <linux/linkage.h>
/*
* Funtion for making PPA HAL API calls in secure devices
* Input:
* R0 - Service ID
* R1 - paramer list
*/
/* TODO: Re-evaluate the comment at the end regarding armv5 vs armv7 */
ENTRY(do_omap3_emu_romcode_call)
PUSH {r4-r12, lr} @ Save all registers from ROM code!
MOV r12, r0 @ Copy the Secure Service ID in R12
MOV r3, r1 @ Copy the pointer to va_list in R3
MOV r1, #0 @ Process ID - 0
MOV r2, #OMAP3_EMU_HAL_START_HAL_CRITICAL @ Copy the pointer
@ to va_list in R3
MOV r6, #0xFF @ Indicate new Task call
mcr p15, 0, r0, c7, c10, 4 @ DSB
mcr p15, 0, r0, c7, c10, 5 @ DMB
.word 0xe1600071 @ SMC #1 to call PPA service - hand assembled
@ because we use -march=armv5
POP {r4-r12, pc}
ENDPROC(do_omap3_emu_romcode_call)
#if !defined(CONFIG_SYS_NAND_BOOT) && !defined(CONFIG_SYS_NAND_BOOT)
/**************************************************************************
* cpy_clk_code: relocates clock code into SRAM where its safer to execute
* R1 = SRAM destination address.
*************************************************************************/
ENTRY(cpy_clk_code)
/* Copy DPLL code into SRAM */
adr r0, go_to_speed /* copy from start of go_to_speed... */
adr r2, lowlevel_init /* ... up to start of low_level_init */
next2:
ldmia r0!, {r3 - r10} /* copy from source address [r0] */
stmia r1!, {r3 - r10} /* copy to target address [r1] */
cmp r0, r2 /* until source end address [r2] */
blo next2
mov pc, lr /* back to caller */
ENDPROC(cpy_clk_code)
/* ***************************************************************************
* go_to_speed: -Moves to bypass, -Commits clock dividers, -puts dpll at speed
* -executed from SRAM.
* R0 = CM_CLKEN_PLL-bypass value
* R1 = CM_CLKSEL1_PLL-m, n, and divider values
* R2 = CM_CLKSEL_CORE-divider values
* R3 = CM_IDLEST_CKGEN - addr dpll lock wait
*
* Note: If core unlocks/relocks and SDRAM is running fast already it gets
* confused. A reset of the controller gets it back. Taking away its
* L3 when its not in self refresh seems bad for it. Normally, this
* code runs from flash before SDR is init so that should be ok.
****************************************************************************/
ENTRY(go_to_speed)
stmfd sp!, {r4 - r6}
/* move into fast relock bypass */
ldr r4, pll_ctl_add
str r0, [r4]
wait1:
ldr r5, [r3] /* get status */
and r5, r5, #0x1 /* isolate core status */
cmp r5, #0x1 /* still locked? */
beq wait1 /* if lock, loop */
/* set new dpll dividers _after_ in bypass */
ldr r5, pll_div_add1
str r1, [r5] /* set m, n, m2 */
ldr r5, pll_div_add2
str r2, [r5] /* set l3/l4/.. dividers*/
ldr r5, pll_div_add3 /* wkup */
ldr r2, pll_div_val3 /* rsm val */
str r2, [r5]
ldr r5, pll_div_add4 /* gfx */
ldr r2, pll_div_val4
str r2, [r5]
ldr r5, pll_div_add5 /* emu */
ldr r2, pll_div_val5
str r2, [r5]
/* now prepare GPMC (flash) for new dpll speed */
/* flash needs to be stable when we jump back to it */
ldr r5, flash_cfg3_addr
ldr r2, flash_cfg3_val
str r2, [r5]
ldr r5, flash_cfg4_addr
ldr r2, flash_cfg4_val
str r2, [r5]
ldr r5, flash_cfg5_addr
ldr r2, flash_cfg5_val
str r2, [r5]
ldr r5, flash_cfg1_addr
ldr r2, [r5]
orr r2, r2, #0x3 /* up gpmc divider */
str r2, [r5]
/* lock DPLL3 and wait a bit */
orr r0, r0, #0x7 /* set up for lock mode */
str r0, [r4] /* lock */
nop /* ARM slow at this point working at sys_clk */
nop
nop
nop
wait2:
ldr r5, [r3] /* get status */
and r5, r5, #0x1 /* isolate core status */
cmp r5, #0x1 /* still locked? */
bne wait2 /* if lock, loop */
nop
nop
nop
nop
ldmfd sp!, {r4 - r6}
mov pc, lr /* back to caller, locked */
ENDPROC(go_to_speed)
_go_to_speed: .word go_to_speed
/* these constants need to be close for PIC code */
/* The Nor has to be in the Flash Base CS0 for this condition to happen */
flash_cfg1_addr:
.word (GPMC_CONFIG_CS0_BASE + GPMC_CONFIG1)
flash_cfg3_addr:
.word (GPMC_CONFIG_CS0_BASE + GPMC_CONFIG3)
flash_cfg3_val:
.word STNOR_GPMC_CONFIG3
flash_cfg4_addr:
.word (GPMC_CONFIG_CS0_BASE + GPMC_CONFIG4)
flash_cfg4_val:
.word STNOR_GPMC_CONFIG4
flash_cfg5_val:
.word STNOR_GPMC_CONFIG5
flash_cfg5_addr:
.word (GPMC_CONFIG_CS0_BASE + GPMC_CONFIG5)
pll_ctl_add:
.word CM_CLKEN_PLL
pll_div_add1:
.word CM_CLKSEL1_PLL
pll_div_add2:
.word CM_CLKSEL_CORE
pll_div_add3:
.word CM_CLKSEL_WKUP
pll_div_val3:
.word (WKUP_RSM << 1)
pll_div_add4:
.word CM_CLKSEL_GFX
pll_div_val4:
.word (GFX_DIV << 0)
pll_div_add5:
.word CM_CLKSEL1_EMU
pll_div_val5:
.word CLSEL1_EMU_VAL
#endif
ENTRY(lowlevel_init)
ldr sp, SRAM_STACK
str ip, [sp] /* stash ip register */
mov ip, lr /* save link reg across call */
#if !defined(CONFIG_SYS_NAND_BOOT) && !defined(CONFIG_SYS_ONENAND_BOOT)
/*
* No need to copy/exec the clock code - DPLL adjust already done
* in NAND/oneNAND Boot.
*/
ldr r1, =SRAM_CLK_CODE
bl cpy_clk_code
#endif /* NAND Boot */
mov lr, ip /* restore link reg */
ldr ip, [sp] /* restore save ip */
/* tail-call s_init to setup pll, mux, memory */
b s_init
ENDPROC(lowlevel_init)
/* the literal pools origin */
.ltorg
REG_CONTROL_STATUS:
.word CONTROL_STATUS
SRAM_STACK:
.word LOW_LEVEL_SRAM_STACK
/* DPLL(1-4) PARAM TABLES */
/*
* Each of the tables has M, N, FREQSEL, M2 values defined for nominal
* OPP (1.2V). The fields are defined according to dpll_param struct (clock.c).
* The values are defined for all possible sysclk and for ES1 and ES2.
*/
mpu_dpll_param:
/* 12MHz */
/* ES1 */
.word MPU_M_12_ES1, MPU_N_12_ES1, MPU_FSEL_12_ES1, MPU_M2_12_ES1
/* ES2 */
.word MPU_M_12_ES2, MPU_N_12_ES2, MPU_FSEL_12_ES2, MPU_M2_ES2
/* 3410 */
.word MPU_M_12, MPU_N_12, MPU_FSEL_12, MPU_M2_12
/* 13MHz */
/* ES1 */
.word MPU_M_13_ES1, MPU_N_13_ES1, MPU_FSEL_13_ES1, MPU_M2_13_ES1
/* ES2 */
.word MPU_M_13_ES2, MPU_N_13_ES2, MPU_FSEL_13_ES2, MPU_M2_13_ES2
/* 3410 */
.word MPU_M_13, MPU_N_13, MPU_FSEL_13, MPU_M2_13
/* 19.2MHz */
/* ES1 */
.word MPU_M_19P2_ES1, MPU_N_19P2_ES1, MPU_FSEL_19P2_ES1, MPU_M2_19P2_ES1
/* ES2 */
.word MPU_M_19P2_ES2, MPU_N_19P2_ES2, MPU_FSEL_19P2_ES2, MPU_M2_19P2_ES2
/* 3410 */
.word MPU_M_19P2, MPU_N_19P2, MPU_FSEL_19P2, MPU_M2_19P2
/* 26MHz */
/* ES1 */
.word MPU_M_26_ES1, MPU_N_26_ES1, MPU_FSEL_26_ES1, MPU_M2_26_ES1
/* ES2 */
.word MPU_M_26_ES2, MPU_N_26_ES2, MPU_FSEL_26_ES2, MPU_M2_26_ES2
/* 3410 */
.word MPU_M_26, MPU_N_26, MPU_FSEL_26, MPU_M2_26
/* 38.4MHz */
/* ES1 */
.word MPU_M_38P4_ES1, MPU_N_38P4_ES1, MPU_FSEL_38P4_ES1, MPU_M2_38P4_ES1
/* ES2 */
.word MPU_M_38P4_ES2, MPU_N_38P4_ES2, MPU_FSEL_38P4_ES2, MPU_M2_38P4_ES2
/* 3410 */
.word MPU_M_38P4, MPU_N_38P4, MPU_FSEL_38P4, MPU_M2_38P4
.globl get_mpu_dpll_param
get_mpu_dpll_param:
adr r0, mpu_dpll_param
mov pc, lr
iva_dpll_param:
/* 12MHz */
/* ES1 */
.word IVA_M_12_ES1, IVA_N_12_ES1, IVA_FSEL_12_ES1, IVA_M2_12_ES1
/* ES2 */
.word IVA_M_12_ES2, IVA_N_12_ES2, IVA_FSEL_12_ES2, IVA_M2_12_ES2
/* 3410 */
.word IVA_M_12, IVA_N_12, IVA_FSEL_12, IVA_M2_12
/* 13MHz */
/* ES1 */
.word IVA_M_13_ES1, IVA_N_13_ES1, IVA_FSEL_13_ES1, IVA_M2_13_ES1
/* ES2 */
.word IVA_M_13_ES2, IVA_N_13_ES2, IVA_FSEL_13_ES2, IVA_M2_13_ES2
/* 3410 */
.word IVA_M_13, IVA_N_13, IVA_FSEL_13, IVA_M2_13
/* 19.2MHz */
/* ES1 */
.word IVA_M_19P2_ES1, IVA_N_19P2_ES1, IVA_FSEL_19P2_ES1, IVA_M2_19P2_ES1
/* ES2 */
.word IVA_M_19P2_ES2, IVA_N_19P2_ES2, IVA_FSEL_19P2_ES2, IVA_M2_19P2_ES2
/* 3410 */
.word IVA_M_19P2, IVA_N_19P2, IVA_FSEL_19P2, IVA_M2_19P2
/* 26MHz */
/* ES1 */
.word IVA_M_26_ES1, IVA_N_26_ES1, IVA_FSEL_26_ES1, IVA_M2_26_ES1
/* ES2 */
.word IVA_M_26_ES2, IVA_N_26_ES2, IVA_FSEL_26_ES2, IVA_M2_26_ES2
/* 3410 */
.word IVA_M_26, IVA_N_26, IVA_FSEL_26, IVA_M2_26
/* 38.4MHz */
/* ES1 */
.word IVA_M_38P4_ES1, IVA_N_38P4_ES1, IVA_FSEL_38P4_ES1, IVA_M2_38P4_ES1
/* ES2 */
.word IVA_M_38P4_ES2, IVA_N_38P4_ES2, IVA_FSEL_38P4_ES2, IVA_M2_38P4_ES2
/* 3410 */
.word IVA_M_38P4, IVA_N_38P4, IVA_FSEL_38P4, IVA_M2_38P4
.globl get_iva_dpll_param
get_iva_dpll_param:
adr r0, iva_dpll_param
mov pc, lr
/* Core DPLL targets for L3 at 166 & L133 */
core_dpll_param:
/* 12MHz */
/* ES1 */
.word CORE_M_12_ES1, CORE_N_12_ES1, CORE_FSL_12_ES1, CORE_M2_12_ES1
/* ES2 */
.word CORE_M_12, CORE_N_12, CORE_FSEL_12, CORE_M2_12
/* 3410 */
.word CORE_M_12, CORE_N_12, CORE_FSEL_12, CORE_M2_12
/* 13MHz */
/* ES1 */
.word CORE_M_13_ES1, CORE_N_13_ES1, CORE_FSL_13_ES1, CORE_M2_13_ES1
/* ES2 */
.word CORE_M_13, CORE_N_13, CORE_FSEL_13, CORE_M2_13
/* 3410 */
.word CORE_M_13, CORE_N_13, CORE_FSEL_13, CORE_M2_13
/* 19.2MHz */
/* ES1 */
.word CORE_M_19P2_ES1, CORE_N_19P2_ES1, CORE_FSL_19P2_ES1, CORE_M2_19P2_ES1
/* ES2 */
.word CORE_M_19P2, CORE_N_19P2, CORE_FSEL_19P2, CORE_M2_19P2
/* 3410 */
.word CORE_M_19P2, CORE_N_19P2, CORE_FSEL_19P2, CORE_M2_19P2
/* 26MHz */
/* ES1 */
.word CORE_M_26_ES1, CORE_N_26_ES1, CORE_FSL_26_ES1, CORE_M2_26_ES1
/* ES2 */
.word CORE_M_26, CORE_N_26, CORE_FSEL_26, CORE_M2_26
/* 3410 */
.word CORE_M_26, CORE_N_26, CORE_FSEL_26, CORE_M2_26
/* 38.4MHz */
/* ES1 */
.word CORE_M_38P4_ES1, CORE_N_38P4_ES1, CORE_FSL_38P4_ES1, CORE_M2_38P4_ES1
/* ES2 */
.word CORE_M_38P4, CORE_N_38P4, CORE_FSEL_38P4, CORE_M2_38P4
/* 3410 */
.word CORE_M_38P4, CORE_N_38P4, CORE_FSEL_38P4, CORE_M2_38P4
.globl get_core_dpll_param
get_core_dpll_param:
adr r0, core_dpll_param
mov pc, lr
/* PER DPLL values are same for both ES1 and ES2 */
per_dpll_param:
/* 12MHz */
.word PER_M_12, PER_N_12, PER_FSEL_12, PER_M2_12
/* 13MHz */
.word PER_M_13, PER_N_13, PER_FSEL_13, PER_M2_13
/* 19.2MHz */
.word PER_M_19P2, PER_N_19P2, PER_FSEL_19P2, PER_M2_19P2
/* 26MHz */
.word PER_M_26, PER_N_26, PER_FSEL_26, PER_M2_26
/* 38.4MHz */
.word PER_M_38P4, PER_N_38P4, PER_FSEL_38P4, PER_M2_38P4
.globl get_per_dpll_param
get_per_dpll_param:
adr r0, per_dpll_param
mov pc, lr
/* PER2 DPLL values */
per2_dpll_param:
/* 12MHz */
.word PER2_M_12, PER2_N_12, PER2_FSEL_12, PER2_M2_12
/* 13MHz */
.word PER2_M_13, PER2_N_13, PER2_FSEL_13, PER2_M2_13
/* 19.2MHz */
.word PER2_M_19P2, PER2_N_19P2, PER2_FSEL_19P2, PER2_M2_19P2
/* 26MHz */
.word PER2_M_26, PER2_N_26, PER2_FSEL_26, PER2_M2_26
/* 38.4MHz */
.word PER2_M_38P4, PER2_N_38P4, PER2_FSEL_38P4, PER2_M2_38P4
.globl get_per2_dpll_param
get_per2_dpll_param:
adr r0, per2_dpll_param
mov pc, lr
/*
* Tables for 36XX/37XX devices
*
*/
mpu_36x_dpll_param:
/* 12MHz */
.word 50, 0, 0, 1
/* 13MHz */
.word 600, 12, 0, 1
/* 19.2MHz */
.word 125, 3, 0, 1
/* 26MHz */
.word 300, 12, 0, 1
/* 38.4MHz */
.word 125, 7, 0, 1
iva_36x_dpll_param:
/* 12MHz */
.word 130, 2, 0, 1
/* 13MHz */
.word 20, 0, 0, 1
/* 19.2MHz */
.word 325, 11, 0, 1
/* 26MHz */
.word 10, 0, 0, 1
/* 38.4MHz */
.word 325, 23, 0, 1
core_36x_dpll_param:
/* 12MHz */
.word 100, 2, 0, 1
/* 13MHz */
.word 400, 12, 0, 1
/* 19.2MHz */
.word 375, 17, 0, 1
/* 26MHz */
.word 200, 12, 0, 1
/* 38.4MHz */
.word 375, 35, 0, 1
per_36x_dpll_param:
/* SYSCLK M N M2 M3 M4 M5 M6 m2DIV */
.word 12000, 360, 4, 9, 16, 5, 4, 3, 1
.word 13000, 864, 12, 9, 16, 9, 4, 3, 1
.word 19200, 360, 7, 9, 16, 5, 4, 3, 1
.word 26000, 432, 12, 9, 16, 9, 4, 3, 1
.word 38400, 360, 15, 9, 16, 5, 4, 3, 1
per2_36x_dpll_param:
/* 12MHz */
.word PER2_36XX_M_12, PER2_36XX_N_12, 0, PER2_36XX_M2_12
/* 13MHz */
.word PER2_36XX_M_13, PER2_36XX_N_13, 0, PER2_36XX_M2_13
/* 19.2MHz */
.word PER2_36XX_M_19P2, PER2_36XX_N_19P2, 0, PER2_36XX_M2_19P2
/* 26MHz */
.word PER2_36XX_M_26, PER2_36XX_N_26, 0, PER2_36XX_M2_26
/* 38.4MHz */
.word PER2_36XX_M_38P4, PER2_36XX_N_38P4, 0, PER2_36XX_M2_38P4
ENTRY(get_36x_mpu_dpll_param)
adr r0, mpu_36x_dpll_param
mov pc, lr
ENDPROC(get_36x_mpu_dpll_param)
ENTRY(get_36x_iva_dpll_param)
adr r0, iva_36x_dpll_param
mov pc, lr
ENDPROC(get_36x_iva_dpll_param)
ENTRY(get_36x_core_dpll_param)
adr r0, core_36x_dpll_param
mov pc, lr
ENDPROC(get_36x_core_dpll_param)
ENTRY(get_36x_per_dpll_param)
adr r0, per_36x_dpll_param
mov pc, lr
ENDPROC(get_36x_per_dpll_param)
ENTRY(get_36x_per2_dpll_param)
adr r0, per2_36x_dpll_param
mov pc, lr
ENDPROC(get_36x_per2_dpll_param)
source/bootloader/u-boot-2020.01/arch/arm/mach-omap2/omap3/prcm-regs.c
+14
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@@ -0,0 +1,14 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* HW regs data for OMAP3.
*
* (C) Copyright 2017 Linaro Ltd.
* Sam Protsenko <semen.protsenko@linaro.org>
*/
#include <asm/arch/omap.h>
#include <asm/omap_common.h>
struct omap_sys_ctrl_regs const omap3_ctrl = {
.control_status = OMAP34XX_CTRL_BASE + 0x2F0,
};
source/bootloader/u-boot-2020.01/arch/arm/mach-omap2/omap3/sdrc.c
+242
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// SPDX-License-Identifier: GPL-2.0+
/*
* Functions related to OMAP3 SDRC.
*
* This file has been created after exctracting and consolidating
* the SDRC related content from mem.c and board.c, also created
* generic init function (mem_init).
*
* Copyright (C) 2004-2010
* Texas Instruments Incorporated - http://www.ti.com/
*
* Copyright (C) 2011
* Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
*
* Author :
* Vaibhav Hiremath <hvaibhav@ti.com>
*
* Original implementation by (mem.c, board.c) :
* Sunil Kumar <sunilsaini05@gmail.com>
* Shashi Ranjan <shashiranjanmca05@gmail.com>
* Manikandan Pillai <mani.pillai@ti.com>
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/mem.h>
#include <asm/arch/sys_proto.h>
DECLARE_GLOBAL_DATA_PTR;
extern omap3_sysinfo sysinfo;
static struct sdrc *sdrc_base = (struct sdrc *)OMAP34XX_SDRC_BASE;
/*
* is_mem_sdr -
* - Return 1 if mem type in use is SDR
*/
u32 is_mem_sdr(void)
{
if (readl(&sdrc_base->cs[CS0].mr) == SDRC_MR_0_SDR)
return 1;
return 0;
}
/*
* make_cs1_contiguous -
* - When we have CS1 populated we want to have it mapped after cs0 to allow
* command line mem=xyz use all memory with out discontinuous support
* compiled in. We could do it in the ATAG, but there really is two banks...
*/
void make_cs1_contiguous(void)
{
u32 size, a_add_low, a_add_high;
size = get_sdr_cs_size(CS0);
size >>= 25; /* divide by 32 MiB to find size to offset CS1 */
a_add_high = (size & 3) << 8; /* set up low field */
a_add_low = (size & 0x3C) >> 2; /* set up high field */
writel((a_add_high | a_add_low), &sdrc_base->cs_cfg);
}
/*
* get_sdr_cs_size -
* - Get size of chip select 0/1
*/
u32 get_sdr_cs_size(u32 cs)
{
u32 size;
/* get ram size field */
size = readl(&sdrc_base->cs[cs].mcfg) >> 8;
size &= 0x3FF; /* remove unwanted bits */
size <<= 21; /* multiply by 2 MiB to find size in MB */
return size;
}
/*
* get_sdr_cs_offset -
* - Get offset of cs from cs0 start
*/
u32 get_sdr_cs_offset(u32 cs)
{
u32 offset;
if (!cs)
return 0;
offset = readl(&sdrc_base->cs_cfg);
offset = (offset & 15) << 27 | (offset & 0x300) << 17;
return offset;
}
/*
* write_sdrc_timings -
* - Takes CS and associated timings and initalize SDRAM
* - Test CS to make sure it's OK for use
*/
static void write_sdrc_timings(u32 cs, struct sdrc_actim *sdrc_actim_base,
struct board_sdrc_timings *timings)
{
/* Setup timings we got from the board. */
writel(timings->mcfg, &sdrc_base->cs[cs].mcfg);
writel(timings->ctrla, &sdrc_actim_base->ctrla);
writel(timings->ctrlb, &sdrc_actim_base->ctrlb);
writel(timings->rfr_ctrl, &sdrc_base->cs[cs].rfr_ctrl);
writel(CMD_NOP, &sdrc_base->cs[cs].manual);
writel(CMD_PRECHARGE, &sdrc_base->cs[cs].manual);
writel(CMD_AUTOREFRESH, &sdrc_base->cs[cs].manual);
writel(CMD_AUTOREFRESH, &sdrc_base->cs[cs].manual);
writel(timings->mr, &sdrc_base->cs[cs].mr);
/*
* Test ram in this bank
* Disable if bad or not present
*/
if (!mem_ok(cs))
writel(0, &sdrc_base->cs[cs].mcfg);
}
/*
* do_sdrc_init -
* - Code called once in C-Stack only context for CS0 and with early being
* true and a possible 2nd time depending on memory configuration from
* stack+global context.
*/
void do_sdrc_init(u32 cs, u32 early)
{
struct sdrc_actim *sdrc_actim_base0, *sdrc_actim_base1;
struct board_sdrc_timings timings;
sdrc_actim_base0 = (struct sdrc_actim *)SDRC_ACTIM_CTRL0_BASE;
sdrc_actim_base1 = (struct sdrc_actim *)SDRC_ACTIM_CTRL1_BASE;
/* set some default timings */
timings.sharing = SDRC_SHARING;
/*
* When called in the early context this may be SPL and we will
* need to set all of the timings. This ends up being board
* specific so we call a helper function to take care of this
* for us. Otherwise, to be safe, we need to copy the settings
* from the first bank to the second. We will setup CS0,
* then set cs_cfg to the appropriate value then try and
* setup CS1.
*/
#ifdef CONFIG_SPL_BUILD
/* set/modify board-specific timings */
get_board_mem_timings(&timings);
#endif
if (early) {
/* reset sdrc controller */
writel(SOFTRESET, &sdrc_base->sysconfig);
wait_on_value(RESETDONE, RESETDONE, &sdrc_base->status,
12000000);
writel(0, &sdrc_base->sysconfig);
/* setup sdrc to ball mux */
writel(timings.sharing, &sdrc_base->sharing);
/* Disable Power Down of CKE because of 1 CKE on combo part */
writel(WAKEUPPROC | SRFRONRESET | PAGEPOLICY_HIGH,
&sdrc_base->power);
writel(ENADLL | DLLPHASE_90, &sdrc_base->dlla_ctrl);
sdelay(0x20000);
#ifdef CONFIG_SPL_BUILD
write_sdrc_timings(CS0, sdrc_actim_base0, &timings);
make_cs1_contiguous();
write_sdrc_timings(CS1, sdrc_actim_base1, &timings);
#endif
}
/*
* If we aren't using SPL we have been loaded by some
* other means which may not have correctly initialized
* both CS0 and CS1 (such as some older versions of x-loader)
* so we may be asked now to setup CS1.
*/
if (cs == CS1) {
timings.mcfg = readl(&sdrc_base->cs[CS0].mcfg),
timings.rfr_ctrl = readl(&sdrc_base->cs[CS0].rfr_ctrl);
timings.ctrla = readl(&sdrc_actim_base0->ctrla);
timings.ctrlb = readl(&sdrc_actim_base0->ctrlb);
timings.mr = readl(&sdrc_base->cs[CS0].mr);
write_sdrc_timings(cs, sdrc_actim_base1, &timings);
}
}
/*
* dram_init -
* - Sets uboots idea of sdram size
*/
int dram_init(void)
{
unsigned int size0 = 0, size1 = 0;
size0 = get_sdr_cs_size(CS0);
/*
* We always need to have cs_cfg point at where the second
* bank would be, if present. Failure to do so can lead to
* strange situations where memory isn't detected and
* configured correctly. CS0 will already have been setup
* at this point.
*/
make_cs1_contiguous();
do_sdrc_init(CS1, NOT_EARLY);
size1 = get_sdr_cs_size(CS1);
gd->ram_size = size0 + size1;
return 0;
}
int dram_init_banksize(void)
{
unsigned int size0 = 0, size1 = 0;
size0 = get_sdr_cs_size(CS0);
size1 = get_sdr_cs_size(CS1);
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
gd->bd->bi_dram[0].size = size0;
gd->bd->bi_dram[1].start = PHYS_SDRAM_1 + get_sdr_cs_offset(CS1);
gd->bd->bi_dram[1].size = size1;
return 0;
}
/*
* mem_init -
* - Init the sdrc chip,
* - Selects CS0 and CS1,
*/
void mem_init(void)
{
/* only init up first bank here */
do_sdrc_init(CS0, EARLY_INIT);
}
source/bootloader/u-boot-2020.01/arch/arm/mach-omap2/omap3/spl_id_nand.c
+56
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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2011
* Texas Instruments, <www.ti.com>
*
* Author :
* Tom Rini <trini@ti.com>
*
* Initial Code from:
* Richard Woodruff <r-woodruff2@ti.com>
* Jian Zhang <jzhang@ti.com>
*/
#include <common.h>
#include <jffs2/load_kernel.h>
#include <linux/mtd/rawnand.h>
#include <linux/mtd/omap_gpmc.h>
#include <asm/io.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mem.h>
/*
* Many boards will want to know the results of the NAND_CMD_READID command
* in order to decide what to do about DDR initialization. This function
* allows us to do that very early and to pass those results back to the
* board so it can make whatever decisions need to be made.
*/
int identify_nand_chip(int *mfr, int *id)
{
int loops = 1000;
/* Make sure that we have setup GPMC for NAND correctly. */
set_gpmc_cs0(MTD_DEV_TYPE_NAND);
sdelay(2000);
/* Issue a RESET and then READID */
writeb(NAND_CMD_RESET, &gpmc_cfg->cs[0].nand_cmd);
writeb(NAND_CMD_STATUS, &gpmc_cfg->cs[0].nand_cmd);
while ((readl(&gpmc_cfg->cs[0].nand_dat) & NAND_STATUS_READY)
!= NAND_STATUS_READY) {
sdelay(100);
if (--loops == 0)
return 1;
}
writeb(NAND_CMD_READID, &gpmc_cfg->cs[0].nand_cmd);
/* Set the address to read to 0x0 */
writeb(0x0, &gpmc_cfg->cs[0].nand_adr);
/* Read off the manufacturer and device id. */
*mfr = readb(&gpmc_cfg->cs[0].nand_dat);
*id = readb(&gpmc_cfg->cs[0].nand_dat);
return 0;
}
source/bootloader/u-boot-2020.01/arch/arm/mach-omap2/omap3/sys_info.c
+373
View File
@@ -0,0 +1,373 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2008
* Texas Instruments, <www.ti.com>
*
* Author :
* Manikandan Pillai <mani.pillai@ti.com>
*
* Derived from Beagle Board and 3430 SDP code by
* Richard Woodruff <r-woodruff2@ti.com>
* Syed Mohammed Khasim <khasim@ti.com>
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/mem.h> /* get mem tables */
#include <asm/arch/sys_proto.h>
#include <asm/bootm.h>
#include <asm/omap_common.h>
#include <i2c.h>
#include <linux/compiler.h>
extern omap3_sysinfo sysinfo;
static struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
#ifdef CONFIG_DISPLAY_CPUINFO
static char *rev_s[CPU_3XX_MAX_REV] = {
"1.0",
"2.0",
"2.1",
"3.0",
"3.1",
"UNKNOWN",
"UNKNOWN",
"3.1.2"};
/* this is the revision table for 37xx CPUs */
static char *rev_s_37xx[CPU_37XX_MAX_REV] = {
"1.0",
"1.1",
"1.2"};
#endif /* CONFIG_DISPLAY_CPUINFO */
void omap_die_id(unsigned int *die_id)
{
struct ctrl_id *id_base = (struct ctrl_id *)OMAP34XX_ID_L4_IO_BASE;
die_id[0] = readl(&id_base->die_id_0);
die_id[1] = readl(&id_base->die_id_1);
die_id[2] = readl(&id_base->die_id_2);
die_id[3] = readl(&id_base->die_id_3);
}
/******************************************
* get_cpu_type(void) - extract cpu info
******************************************/
u32 get_cpu_type(void)
{
return readl(&ctrl_base->ctrl_omap_stat);
}
/******************************************
* get_cpu_id(void) - extract cpu id
* returns 0 for ES1.0, cpuid otherwise
******************************************/
u32 get_cpu_id(void)
{
struct ctrl_id *id_base;
u32 cpuid = 0;
/*
* On ES1.0 the IDCODE register is not exposed on L4
* so using CPU ID to differentiate between ES1.0 and > ES1.0.
*/
__asm__ __volatile__("mrc p15, 0, %0, c0, c0, 0":"=r"(cpuid));
if ((cpuid & 0xf) == 0x0) {
return 0;
} else {
/* Decode the IDs on > ES1.0 */
id_base = (struct ctrl_id *) OMAP34XX_ID_L4_IO_BASE;
cpuid = readl(&id_base->idcode);
}
return cpuid;
}
/******************************************
* get_cpu_family(void) - extract cpu info
******************************************/
u32 get_cpu_family(void)
{
u16 hawkeye;
u32 cpu_family;
u32 cpuid = get_cpu_id();
if (cpuid == 0)
return CPU_OMAP34XX;
hawkeye = (cpuid >> HAWKEYE_SHIFT) & 0xffff;
switch (hawkeye) {
case HAWKEYE_OMAP34XX:
cpu_family = CPU_OMAP34XX;
break;
case HAWKEYE_AM35XX:
cpu_family = CPU_AM35XX;
break;
case HAWKEYE_OMAP36XX:
cpu_family = CPU_OMAP36XX;
break;
default:
cpu_family = CPU_OMAP34XX;
}
return cpu_family;
}
/******************************************
* get_cpu_rev(void) - extract version info
******************************************/
u32 get_cpu_rev(void)
{
u32 cpuid = get_cpu_id();
if (cpuid == 0)
return CPU_3XX_ES10;
else
return (cpuid >> CPU_3XX_ID_SHIFT) & 0xf;
}
/*****************************************************************
* get_sku_id(void) - read sku_id to get info on max clock rate
*****************************************************************/
u32 get_sku_id(void)
{
struct ctrl_id *id_base = (struct ctrl_id *)OMAP34XX_ID_L4_IO_BASE;
return readl(&id_base->sku_id) & SKUID_CLK_MASK;
}
/***************************************************************************
* get_gpmc0_base() - Return current address hardware will be
* fetching from. The below effectively gives what is correct, its a bit
* mis-leading compared to the TRM. For the most general case the mask
* needs to be also taken into account this does work in practice.
* - for u-boot we currently map:
* -- 0 to nothing,
* -- 4 to flash
* -- 8 to enent
* -- c to wifi
****************************************************************************/
u32 get_gpmc0_base(void)
{
u32 b;
b = readl(&gpmc_cfg->cs[0].config7);
b &= 0x1F; /* keep base [5:0] */
b = b << 24; /* ret 0x0b000000 */
return b;
}
/*******************************************************************
* get_gpmc0_width() - See if bus is in x8 or x16 (mainly for nand)
*******************************************************************/
u32 get_gpmc0_width(void)
{
return WIDTH_16BIT;
}
/*************************************************************************
* get_board_rev() - setup to pass kernel board revision information
* returns:(bit[0-3] sub version, higher bit[7-4] is higher version)
*************************************************************************/
#ifdef CONFIG_REVISION_TAG
u32 __weak get_board_rev(void)
{
return 0x20;
}
#endif
/********************************************************
* get_base(); get upper addr of current execution
*******************************************************/
static u32 get_base(void)
{
u32 val;
__asm__ __volatile__("mov %0, pc \n":"=r"(val)::"memory");
val &= 0xF0000000;
val >>= 28;
return val;
}
/********************************************************
* is_running_in_flash() - tell if currently running in
* FLASH.
*******************************************************/
u32 is_running_in_flash(void)
{
if (get_base() < 4)
return 1; /* in FLASH */
return 0; /* running in SRAM or SDRAM */
}
/********************************************************
* is_running_in_sram() - tell if currently running in
* SRAM.
*******************************************************/
u32 is_running_in_sram(void)
{
if (get_base() == 4)
return 1; /* in SRAM */
return 0; /* running in FLASH or SDRAM */
}
/********************************************************
* is_running_in_sdram() - tell if currently running in
* SDRAM.
*******************************************************/
u32 is_running_in_sdram(void)
{
if (get_base() > 4)
return 1; /* in SDRAM */
return 0; /* running in SRAM or FLASH */
}
/***************************************************************
* get_boot_type() - Is this an XIP type device or a stream one
* bits 4-0 specify type. Bit 5 says mem/perif
***************************************************************/
u32 get_boot_type(void)
{
return (readl(&ctrl_base->status) & SYSBOOT_MASK);
}
#ifdef CONFIG_DISPLAY_CPUINFO
/**
* Print CPU information
*/
int print_cpuinfo (void)
{
char *cpu_family_s, *cpu_s, *sec_s, *max_clk;
switch (get_cpu_family()) {
case CPU_OMAP34XX:
cpu_family_s = "OMAP";
switch (get_cpu_type()) {
case OMAP3503:
cpu_s = "3503";
break;
case OMAP3515:
cpu_s = "3515";
break;
case OMAP3525:
cpu_s = "3525";
break;
case OMAP3530:
cpu_s = "3530";
break;
default:
cpu_s = "35XX";
break;
}
if ((get_cpu_rev() >= CPU_3XX_ES31) &&
(get_sku_id() == SKUID_CLK_720MHZ))
max_clk = "720 MHz";
else
max_clk = "600 MHz";
break;
case CPU_AM35XX:
cpu_family_s = "AM";
switch (get_cpu_type()) {
case AM3505:
cpu_s = "3505";
break;
case AM3517:
cpu_s = "3517";
break;
default:
cpu_s = "35XX";
break;
}
max_clk = "600 MHz";
break;
case CPU_OMAP36XX:
switch (get_cpu_type()) {
case AM3703:
cpu_family_s = "AM";
cpu_s = "3703";
max_clk = "800 MHz";
break;
case AM3703_1GHZ:
cpu_family_s = "AM";
cpu_s = "3703";
max_clk = "1 GHz";
break;
case AM3715:
cpu_family_s = "AM";
cpu_s = "3715";
max_clk = "800 MHz";
break;
case AM3715_1GHZ:
cpu_family_s = "AM";
cpu_s = "3715";
max_clk = "1 GHz";
break;
case OMAP3725:
cpu_family_s = "OMAP";
cpu_s = "3625/3725";
max_clk = "800 MHz";
break;
case OMAP3725_1GHZ:
cpu_family_s = "OMAP";
cpu_s = "3625/3725";
max_clk = "1 GHz";
break;
case OMAP3730:
cpu_family_s = "OMAP";
cpu_s = "3630/3730";
max_clk = "800 MHz";
break;
case OMAP3730_1GHZ:
cpu_family_s = "OMAP";
cpu_s = "3630/3730";
max_clk = "1 GHz";
break;
default:
cpu_family_s = "OMAP/AM";
cpu_s = "36XX/37XX";
max_clk = "1 GHz";
break;
}
break;
default:
cpu_family_s = "OMAP";
cpu_s = "35XX";
max_clk = "600 MHz";
}
switch (get_device_type()) {
case TST_DEVICE:
sec_s = "TST";
break;
case EMU_DEVICE:
sec_s = "EMU";
break;
case HS_DEVICE:
sec_s = "HS";
break;
case GP_DEVICE:
sec_s = "GP";
break;
default:
sec_s = "?";
}
if (CPU_OMAP36XX == get_cpu_family())
printf("%s%s-%s ES%s, CPU-OPP2, L3-200MHz, Max CPU Clock %s\n",
cpu_family_s, cpu_s, sec_s,
rev_s_37xx[get_cpu_rev()], max_clk);
else
printf("%s%s-%s ES%s, CPU-OPP2, L3-165MHz, Max CPU Clock %s\n",
cpu_family_s, cpu_s, sec_s,
rev_s[get_cpu_rev()], max_clk);
return 0;
}
#endif /* CONFIG_DISPLAY_CPUINFO */