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

This commit is contained in:
lai
2026-09-06 03:52:57 +08:00
commit b1928b41c0
21813 changed files with 4413081 additions and 0 deletions
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# SPDX-License-Identifier: GPL-2.0+
#
# (C) Copyright 2012 Henrik Nordstrom <henrik@henriknordstrom.net>
#
# Based on some other Makefile
# (C) Copyright 2000-2003
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
obj-y += timer.o
obj-$(CONFIG_MACH_SUN6I) += tzpc.o
obj-$(CONFIG_MACH_SUN8I_H3) += tzpc.o
ifndef CONFIG_SPL_BUILD
obj-$(CONFIG_ARMV7_PSCI) += psci.o
endif
ifdef CONFIG_SPL_BUILD
obj-y += fel_utils.o
endif
@@ -0,0 +1,41 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Utility functions for FEL mode.
*
* Copyright (c) 2015 Google, Inc
*/
#include <asm-offsets.h>
#include <config.h>
#include <asm/system.h>
#include <linux/linkage.h>
ENTRY(save_boot_params)
ldr r0, =fel_stash
str sp, [r0, #0]
str lr, [r0, #4]
mrs lr, cpsr @ Read CPSR
str lr, [r0, #8]
mrc p15, 0, lr, c1, c0, 0 @ Read CP15 SCTLR Register
str lr, [r0, #12]
mrc p15, 0, lr, c12, c0, 0 @ Read VBAR
str lr, [r0, #16]
mrc p15, 0, lr, c1, c0, 0 @ Read CP15 Control Register
str lr, [r0, #20]
b save_boot_params_ret
ENDPROC(save_boot_params)
ENTRY(return_to_fel)
mov sp, r0
mov lr, r1
ldr r0, =fel_stash
ldr r1, [r0, #20]
mcr p15, 0, r1, c1, c0, 0 @ Write CP15 Control Register
ldr r1, [r0, #16]
mcr p15, 0, r1, c12, c0, 0 @ Write VBAR
ldr r1, [r0, #12]
mcr p15, 0, r1, c1, c0, 0 @ Write CP15 SCTLR Register
ldr r1, [r0, #8]
msr cpsr, r1 @ Write CPSR
bx lr
ENDPROC(return_to_fel)
@@ -0,0 +1,318 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2016
* Author: Chen-Yu Tsai <wens@csie.org>
*
* Based on assembly code by Marc Zyngier <marc.zyngier@arm.com>,
* which was based on code by Carl van Schaik <carl@ok-labs.com>.
*/
#include <config.h>
#include <common.h>
#include <asm/arch/cpu.h>
#include <asm/arch/cpucfg.h>
#include <asm/arch/prcm.h>
#include <asm/armv7.h>
#include <asm/gic.h>
#include <asm/io.h>
#include <asm/psci.h>
#include <asm/secure.h>
#include <asm/system.h>
#include <linux/bitops.h>
#define __irq __attribute__ ((interrupt ("IRQ")))
#define GICD_BASE (SUNXI_GIC400_BASE + GIC_DIST_OFFSET)
#define GICC_BASE (SUNXI_GIC400_BASE + GIC_CPU_OFFSET_A15)
/*
* R40 is different from other single cluster SoCs.
*
* The power clamps are located in the unused space after the per-core
* reset controls for core 3. The secondary core entry address register
* is in the SRAM controller address range.
*/
#define SUN8I_R40_PWROFF (0x110)
#define SUN8I_R40_PWR_CLAMP(cpu) (0x120 + (cpu) * 0x4)
#define SUN8I_R40_SRAMC_SOFT_ENTRY_REG0 (0xbc)
static void __secure cp15_write_cntp_tval(u32 tval)
{
asm volatile ("mcr p15, 0, %0, c14, c2, 0" : : "r" (tval));
}
static void __secure cp15_write_cntp_ctl(u32 val)
{
asm volatile ("mcr p15, 0, %0, c14, c2, 1" : : "r" (val));
}
static u32 __secure cp15_read_cntp_ctl(void)
{
u32 val;
asm volatile ("mrc p15, 0, %0, c14, c2, 1" : "=r" (val));
return val;
}
#define ONE_MS (COUNTER_FREQUENCY / 1000)
static void __secure __mdelay(u32 ms)
{
u32 reg = ONE_MS * ms;
cp15_write_cntp_tval(reg);
isb();
cp15_write_cntp_ctl(3);
do {
isb();
reg = cp15_read_cntp_ctl();
} while (!(reg & BIT(2)));
cp15_write_cntp_ctl(0);
isb();
}
static void __secure clamp_release(void __maybe_unused *clamp)
{
#if defined(CONFIG_MACH_SUN6I) || defined(CONFIG_MACH_SUN7I) || \
defined(CONFIG_MACH_SUN8I_H3) || \
defined(CONFIG_MACH_SUN8I_R40)
u32 tmp = 0x1ff;
do {
tmp >>= 1;
writel(tmp, clamp);
} while (tmp);
__mdelay(10);
#endif
}
static void __secure clamp_set(void __maybe_unused *clamp)
{
#if defined(CONFIG_MACH_SUN6I) || defined(CONFIG_MACH_SUN7I) || \
defined(CONFIG_MACH_SUN8I_H3) || \
defined(CONFIG_MACH_SUN8I_R40)
writel(0xff, clamp);
#endif
}
static void __secure sunxi_power_switch(void *clamp, void *pwroff_ptr, bool on,
int cpu)
{
u32 pwroff;
memcpy(&pwroff, pwroff_ptr, sizeof(u32));
if (on) {
/* Release power clamp */
clamp_release(clamp);
/* Clear power gating */
clrbits_le32(&pwroff, BIT(cpu));
} else {
/* Set power gating */
setbits_le32(&pwroff, BIT(cpu));
/* Activate power clamp */
clamp_set(clamp);
}
memcpy(pwroff_ptr, &pwroff, sizeof(u32));
}
#ifdef CONFIG_MACH_SUN8I_R40
/* secondary core entry address is programmed differently on R40 */
static void __secure sunxi_set_entry_address(void *entry)
{
writel((u32)entry,
SUNXI_SRAMC_BASE + SUN8I_R40_SRAMC_SOFT_ENTRY_REG0);
}
#else
static void __secure sunxi_set_entry_address(void *entry)
{
struct sunxi_cpucfg_reg *cpucfg =
(struct sunxi_cpucfg_reg *)SUNXI_CPUCFG_BASE;
writel((u32)entry, &cpucfg->priv0);
}
#endif
#ifdef CONFIG_MACH_SUN7I
/* sun7i (A20) is different from other single cluster SoCs */
static void __secure sunxi_cpu_set_power(int __always_unused cpu, bool on)
{
struct sunxi_cpucfg_reg *cpucfg =
(struct sunxi_cpucfg_reg *)SUNXI_CPUCFG_BASE;
sunxi_power_switch(&cpucfg->cpu1_pwr_clamp, &cpucfg->cpu1_pwroff,
on, 0);
}
#elif defined CONFIG_MACH_SUN8I_R40
static void __secure sunxi_cpu_set_power(int cpu, bool on)
{
struct sunxi_cpucfg_reg *cpucfg =
(struct sunxi_cpucfg_reg *)SUNXI_CPUCFG_BASE;
sunxi_power_switch((void *)cpucfg + SUN8I_R40_PWR_CLAMP(cpu),
(void *)cpucfg + SUN8I_R40_PWROFF,
on, 0);
}
#else /* ! CONFIG_MACH_SUN7I && ! CONFIG_MACH_SUN8I_R40 */
static void __secure sunxi_cpu_set_power(int cpu, bool on)
{
struct sunxi_prcm_reg *prcm =
(struct sunxi_prcm_reg *)SUNXI_PRCM_BASE;
sunxi_power_switch(&prcm->cpu_pwr_clamp[cpu], &prcm->cpu_pwroff,
on, cpu);
}
#endif /* CONFIG_MACH_SUN7I */
void __secure sunxi_cpu_power_off(u32 cpuid)
{
struct sunxi_cpucfg_reg *cpucfg =
(struct sunxi_cpucfg_reg *)SUNXI_CPUCFG_BASE;
u32 cpu = cpuid & 0x3;
/* Wait for the core to enter WFI */
while (1) {
if (readl(&cpucfg->cpu[cpu].status) & BIT(2))
break;
__mdelay(1);
}
/* Assert reset on target CPU */
writel(0, &cpucfg->cpu[cpu].rst);
/* Lock CPU (Disable external debug access) */
clrbits_le32(&cpucfg->dbg_ctrl1, BIT(cpu));
/* Power down CPU */
sunxi_cpu_set_power(cpuid, false);
/* Unlock CPU (Disable external debug access) */
setbits_le32(&cpucfg->dbg_ctrl1, BIT(cpu));
}
static u32 __secure cp15_read_scr(void)
{
u32 scr;
asm volatile ("mrc p15, 0, %0, c1, c1, 0" : "=r" (scr));
return scr;
}
static void __secure cp15_write_scr(u32 scr)
{
asm volatile ("mcr p15, 0, %0, c1, c1, 0" : : "r" (scr));
isb();
}
/*
* Although this is an FIQ handler, the FIQ is processed in monitor mode,
* which means there's no FIQ banked registers. This is the same as IRQ
* mode, so use the IRQ attribute to ask the compiler to handler entry
* and return.
*/
void __secure __irq psci_fiq_enter(void)
{
u32 scr, reg, cpu;
/* Switch to secure mode */
scr = cp15_read_scr();
cp15_write_scr(scr & ~BIT(0));
/* Validate reason based on IAR and acknowledge */
reg = readl(GICC_BASE + GICC_IAR);
/* Skip spurious interrupts 1022 and 1023 */
if (reg == 1023 || reg == 1022)
goto out;
/* End of interrupt */
writel(reg, GICC_BASE + GICC_EOIR);
dsb();
/* Get CPU number */
cpu = (reg >> 10) & 0x7;
/* Power off the CPU */
sunxi_cpu_power_off(cpu);
out:
/* Restore security level */
cp15_write_scr(scr);
}
int __secure psci_cpu_on(u32 __always_unused unused, u32 mpidr, u32 pc,
u32 context_id)
{
struct sunxi_cpucfg_reg *cpucfg =
(struct sunxi_cpucfg_reg *)SUNXI_CPUCFG_BASE;
u32 cpu = (mpidr & 0x3);
/* store target PC and context id */
psci_save(cpu, pc, context_id);
/* Set secondary core power on PC */
sunxi_set_entry_address(&psci_cpu_entry);
/* Assert reset on target CPU */
writel(0, &cpucfg->cpu[cpu].rst);
/* Invalidate L1 cache */
clrbits_le32(&cpucfg->gen_ctrl, BIT(cpu));
/* Lock CPU (Disable external debug access) */
clrbits_le32(&cpucfg->dbg_ctrl1, BIT(cpu));
/* Power up target CPU */
sunxi_cpu_set_power(cpu, true);
/* De-assert reset on target CPU */
writel(BIT(1) | BIT(0), &cpucfg->cpu[cpu].rst);
/* Unlock CPU (Disable external debug access) */
setbits_le32(&cpucfg->dbg_ctrl1, BIT(cpu));
return ARM_PSCI_RET_SUCCESS;
}
s32 __secure psci_cpu_off(void)
{
psci_cpu_off_common();
/* Ask CPU0 via SGI15 to pull the rug... */
writel(BIT(16) | 15, GICD_BASE + GICD_SGIR);
dsb();
/* Wait to be turned off */
while (1)
wfi();
}
void __secure psci_arch_init(void)
{
u32 reg;
/* SGI15 as Group-0 */
clrbits_le32(GICD_BASE + GICD_IGROUPRn, BIT(15));
/* Set SGI15 priority to 0 */
writeb(0, GICD_BASE + GICD_IPRIORITYRn + 15);
/* Be cool with non-secure */
writel(0xff, GICC_BASE + GICC_PMR);
/* Switch FIQEn on */
setbits_le32(GICC_BASE + GICC_CTLR, BIT(3));
reg = cp15_read_scr();
reg |= BIT(2); /* Enable FIQ in monitor mode */
reg &= ~BIT(0); /* Secure mode */
cp15_write_scr(reg);
}
@@ -0,0 +1 @@
/* Intentionally empty. Only needed to get FEL SPL link line right */
@@ -0,0 +1,113 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2007-2011
* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
* Tom Cubie <tangliang@allwinnertech.com>
*/
#include <common.h>
#include <time.h>
#include <asm/io.h>
#include <asm/arch/timer.h>
DECLARE_GLOBAL_DATA_PTR;
#define TIMER_MODE (0x0 << 7) /* continuous mode */
#define TIMER_DIV (0x0 << 4) /* pre scale 1 */
#define TIMER_SRC (0x1 << 2) /* osc24m */
#define TIMER_RELOAD (0x1 << 1) /* reload internal value */
#define TIMER_EN (0x1 << 0) /* enable timer */
#define TIMER_CLOCK (24 * 1000 * 1000)
#define COUNT_TO_USEC(x) ((x) / 24)
#define USEC_TO_COUNT(x) ((x) * 24)
#define TICKS_PER_HZ (TIMER_CLOCK / CONFIG_SYS_HZ)
#define TICKS_TO_HZ(x) ((x) / TICKS_PER_HZ)
#define TIMER_LOAD_VAL 0xffffffff
#define TIMER_NUM 0 /* we use timer 0 */
/* read the 32-bit timer */
static ulong read_timer(void)
{
struct sunxi_timer_reg *timers =
(struct sunxi_timer_reg *)SUNXI_TIMER_BASE;
struct sunxi_timer *timer = &timers->timer[TIMER_NUM];
/*
* The hardware timer counts down, therefore we invert to
* produce an incrementing timer.
*/
return ~readl(&timer->val);
}
/* init timer register */
int timer_init(void)
{
struct sunxi_timer_reg *timers =
(struct sunxi_timer_reg *)SUNXI_TIMER_BASE;
struct sunxi_timer *timer = &timers->timer[TIMER_NUM];
writel(TIMER_LOAD_VAL, &timer->inter);
writel(TIMER_MODE | TIMER_DIV | TIMER_SRC | TIMER_RELOAD | TIMER_EN,
&timer->ctl);
return 0;
}
/* timer without interrupts */
static ulong get_timer_masked(void)
{
/* current tick value */
ulong now = TICKS_TO_HZ(read_timer());
if (now >= gd->arch.lastinc) /* normal (non rollover) */
gd->arch.tbl += (now - gd->arch.lastinc);
else {
/* rollover */
gd->arch.tbl += (TICKS_TO_HZ(TIMER_LOAD_VAL)
- gd->arch.lastinc) + now;
}
gd->arch.lastinc = now;
return gd->arch.tbl;
}
ulong get_timer(ulong base)
{
return get_timer_masked() - base;
}
/* delay x useconds */
void __udelay(unsigned long usec)
{
long tmo = USEC_TO_COUNT(usec);
ulong now, last = read_timer();
while (tmo > 0) {
now = read_timer();
if (now > last) /* normal (non rollover) */
tmo -= now - last;
else /* rollover */
tmo -= TIMER_LOAD_VAL - last + now;
last = now;
}
}
/*
* This function is derived from PowerPC code (read timebase as long long).
* On ARM it just returns the timer value.
*/
unsigned long long get_ticks(void)
{
return get_timer(0);
}
/*
* This function is derived from PowerPC code (timebase clock frequency).
* On ARM it returns the number of timer ticks per second.
*/
ulong get_tbclk(void)
{
return CONFIG_SYS_HZ;
}
@@ -0,0 +1,26 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2015 Chen-Yu Tsai <wens@csie.org>
*/
#include <asm/io.h>
#include <asm/arch/cpu.h>
#include <asm/arch/tzpc.h>
/* Configure Trust Zone Protection Controller */
void tzpc_init(void)
{
struct sunxi_tzpc *tzpc = (struct sunxi_tzpc *)SUNXI_TZPC_BASE;
#ifdef CONFIG_MACH_SUN6I
/* Enable non-secure access to the RTC */
writel(SUN6I_TZPC_DECPORT0_RTC, &tzpc->decport0_set);
#endif
#ifdef CONFIG_MACH_SUN8I_H3
/* Enable non-secure access to all peripherals */
writel(SUN8I_H3_TZPC_DECPORT0_ALL, &tzpc->decport0_set);
writel(SUN8I_H3_TZPC_DECPORT1_ALL, &tzpc->decport1_set);
writel(SUN8I_H3_TZPC_DECPORT2_ALL, &tzpc->decport2_set);
#endif
}
@@ -0,0 +1,57 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2012
* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
* Tom Cubie <tangliang@allwinnertech.com>
*
* Based on omap-common/u-boot-spl.lds:
*
* (C) Copyright 2002
* Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
*
* (C) Copyright 2010
* Texas Instruments, <www.ti.com>
* Aneesh V <aneesh@ti.com>
*/
MEMORY { .sram : ORIGIN = IMAGE_TEXT_BASE,\
LENGTH = IMAGE_MAX_SIZE }
MEMORY { .sdram : ORIGIN = CONFIG_SPL_BSS_START_ADDR, \
LENGTH = CONFIG_SPL_BSS_MAX_SIZE }
OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
OUTPUT_ARCH(arm)
ENTRY(_start)
SECTIONS
{
.text :
{
__start = .;
*(.vectors)
arch/arm/cpu/armv7/start.o (.text)
*(.text*)
} > .sram
. = ALIGN(4);
.rodata : { *(SORT_BY_ALIGNMENT(.rodata*)) } >.sram
. = ALIGN(4);
.data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
. = ALIGN(4);
.u_boot_list : {
KEEP(*(SORT(.u_boot_list*)));
} > .sram
. = ALIGN(4);
__image_copy_end = .;
_end = .;
.bss :
{
. = ALIGN(4);
__bss_start = .;
*(.bss*)
. = ALIGN(4);
__bss_end = .;
} > .sdram
}