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u-boot/arch/arm/mach-sunxi/board.c
Andre Przywara e943753dc2 sunxi: Fix old GMAC pinmux setup 
Commit 5bc4cd05d7 ("sunxi: move non-essential code out of s_init()")
moved the call to eth_init_board() from s_init() into board_init_f().
This means it's now only called from the SPL, which makes sense for
most of the other moved low-level functions. However the GMAC pinmux and
clock setup in eth_init_board() was not happy about that, so it broke
the sun7i GMAC.

Since Ethernet is of no use in the SPL anyway, just move the call into
board_init(), which is only run in U-Boot proper.

This fixes Ethernet operation for the A20 SoCs, which broke in
v2022.04-rc1, with the above mentioned commit.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Tested-by: Petr Štetiar <ynezz@true.cz> [a20-olinuxino-lime2]
2022-03-26 00:16:06 +00:00

389 lines
12 KiB
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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2012 Henrik Nordstrom <henrik@henriknordstrom.net>
*
* (C) Copyright 2007-2011
* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
* Tom Cubie <tangliang@allwinnertech.com>
*
* Some init for sunxi platform.
*/
#include <common.h>
#include <cpu_func.h>
#include <init.h>
#include <log.h>
#include <mmc.h>
#include <i2c.h>
#include <serial.h>
#include <spl.h>
#include <asm/cache.h>
#include <asm/gpio.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/spl.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/timer.h>
#include <asm/arch/tzpc.h>
#include <asm/arch/mmc.h>
#include <linux/compiler.h>
struct fel_stash {
uint32_t sp;
uint32_t lr;
uint32_t cpsr;
uint32_t sctlr;
uint32_t vbar;
uint32_t cr;
};
struct fel_stash fel_stash __section(".data");
#ifdef CONFIG_ARM64
#include <asm/armv8/mmu.h>
static struct mm_region sunxi_mem_map[] = {
{
/* SRAM, MMIO regions */
.virt = 0x0UL,
.phys = 0x0UL,
.size = 0x40000000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
PTE_BLOCK_NON_SHARE
}, {
/* RAM */
.virt = 0x40000000UL,
.phys = 0x40000000UL,
.size = CONFIG_SUNXI_DRAM_MAX_SIZE,
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_INNER_SHARE
}, {
/* List terminator */
0,
}
};
struct mm_region *mem_map = sunxi_mem_map;
ulong board_get_usable_ram_top(ulong total_size)
{
/* Some devices (like the EMAC) have a 32-bit DMA limit. */
if (gd->ram_top > (1ULL << 32))
return 1ULL << 32;
return gd->ram_top;
}
#endif
#ifdef CONFIG_SPL_BUILD
static int gpio_init(void)
{
__maybe_unused uint val;
#if CONFIG_CONS_INDEX == 1 && defined(CONFIG_UART0_PORT_F)
#if defined(CONFIG_MACH_SUN4I) || \
defined(CONFIG_MACH_SUN7I) || \
defined(CONFIG_MACH_SUN8I_R40)
/* disable GPB22,23 as uart0 tx,rx to avoid conflict */
sunxi_gpio_set_cfgpin(SUNXI_GPB(22), SUNXI_GPIO_INPUT);
sunxi_gpio_set_cfgpin(SUNXI_GPB(23), SUNXI_GPIO_INPUT);
#endif
#if (defined(CONFIG_MACH_SUN8I) && !defined(CONFIG_MACH_SUN8I_R40)) || \
defined(CONFIG_MACH_SUNIV)
sunxi_gpio_set_cfgpin(SUNXI_GPF(2), SUN8I_GPF_UART0);
sunxi_gpio_set_cfgpin(SUNXI_GPF(4), SUN8I_GPF_UART0);
#else
sunxi_gpio_set_cfgpin(SUNXI_GPF(2), SUNXI_GPF_UART0);
sunxi_gpio_set_cfgpin(SUNXI_GPF(4), SUNXI_GPF_UART0);
#endif
sunxi_gpio_set_pull(SUNXI_GPF(4), 1);
#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUNIV)
sunxi_gpio_set_cfgpin(SUNXI_GPE(0), SUNIV_GPE_UART0);
sunxi_gpio_set_cfgpin(SUNXI_GPE(1), SUNIV_GPE_UART0);
sunxi_gpio_set_pull(SUNXI_GPE(1), SUNXI_GPIO_PULL_UP);
#elif CONFIG_CONS_INDEX == 1 && (defined(CONFIG_MACH_SUN4I) || \
defined(CONFIG_MACH_SUN7I) || \
defined(CONFIG_MACH_SUN8I_R40))
sunxi_gpio_set_cfgpin(SUNXI_GPB(22), SUN4I_GPB_UART0);
sunxi_gpio_set_cfgpin(SUNXI_GPB(23), SUN4I_GPB_UART0);
sunxi_gpio_set_pull(SUNXI_GPB(23), SUNXI_GPIO_PULL_UP);
#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN5I)
sunxi_gpio_set_cfgpin(SUNXI_GPB(19), SUN5I_GPB_UART0);
sunxi_gpio_set_cfgpin(SUNXI_GPB(20), SUN5I_GPB_UART0);
sunxi_gpio_set_pull(SUNXI_GPB(20), SUNXI_GPIO_PULL_UP);
#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN6I)
sunxi_gpio_set_cfgpin(SUNXI_GPH(20), SUN6I_GPH_UART0);
sunxi_gpio_set_cfgpin(SUNXI_GPH(21), SUN6I_GPH_UART0);
sunxi_gpio_set_pull(SUNXI_GPH(21), SUNXI_GPIO_PULL_UP);
#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN8I_A33)
sunxi_gpio_set_cfgpin(SUNXI_GPB(0), SUN8I_A33_GPB_UART0);
sunxi_gpio_set_cfgpin(SUNXI_GPB(1), SUN8I_A33_GPB_UART0);
sunxi_gpio_set_pull(SUNXI_GPB(1), SUNXI_GPIO_PULL_UP);
#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUNXI_H3_H5)
sunxi_gpio_set_cfgpin(SUNXI_GPA(4), SUN8I_H3_GPA_UART0);
sunxi_gpio_set_cfgpin(SUNXI_GPA(5), SUN8I_H3_GPA_UART0);
sunxi_gpio_set_pull(SUNXI_GPA(5), SUNXI_GPIO_PULL_UP);
#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN50I)
sunxi_gpio_set_cfgpin(SUNXI_GPB(8), SUN50I_GPB_UART0);
sunxi_gpio_set_cfgpin(SUNXI_GPB(9), SUN50I_GPB_UART0);
sunxi_gpio_set_pull(SUNXI_GPB(9), SUNXI_GPIO_PULL_UP);
#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN50I_H6)
sunxi_gpio_set_cfgpin(SUNXI_GPH(0), SUN50I_H6_GPH_UART0);
sunxi_gpio_set_cfgpin(SUNXI_GPH(1), SUN50I_H6_GPH_UART0);
sunxi_gpio_set_pull(SUNXI_GPH(1), SUNXI_GPIO_PULL_UP);
#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN50I_H616)
sunxi_gpio_set_cfgpin(SUNXI_GPH(0), SUN50I_H616_GPH_UART0);
sunxi_gpio_set_cfgpin(SUNXI_GPH(1), SUN50I_H616_GPH_UART0);
sunxi_gpio_set_pull(SUNXI_GPH(1), SUNXI_GPIO_PULL_UP);
#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN8I_A83T)
sunxi_gpio_set_cfgpin(SUNXI_GPB(9), SUN8I_A83T_GPB_UART0);
sunxi_gpio_set_cfgpin(SUNXI_GPB(10), SUN8I_A83T_GPB_UART0);
sunxi_gpio_set_pull(SUNXI_GPB(10), SUNXI_GPIO_PULL_UP);
#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN8I_V3S)
sunxi_gpio_set_cfgpin(SUNXI_GPB(8), SUN8I_V3S_GPB_UART0);
sunxi_gpio_set_cfgpin(SUNXI_GPB(9), SUN8I_V3S_GPB_UART0);
sunxi_gpio_set_pull(SUNXI_GPB(9), SUNXI_GPIO_PULL_UP);
#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN9I)
sunxi_gpio_set_cfgpin(SUNXI_GPH(12), SUN9I_GPH_UART0);
sunxi_gpio_set_cfgpin(SUNXI_GPH(13), SUN9I_GPH_UART0);
sunxi_gpio_set_pull(SUNXI_GPH(13), SUNXI_GPIO_PULL_UP);
#elif CONFIG_CONS_INDEX == 2 && defined(CONFIG_MACH_SUN5I)
sunxi_gpio_set_cfgpin(SUNXI_GPG(3), SUN5I_GPG_UART1);
sunxi_gpio_set_cfgpin(SUNXI_GPG(4), SUN5I_GPG_UART1);
sunxi_gpio_set_pull(SUNXI_GPG(4), SUNXI_GPIO_PULL_UP);
#elif CONFIG_CONS_INDEX == 3 && defined(CONFIG_MACH_SUN8I)
sunxi_gpio_set_cfgpin(SUNXI_GPB(0), SUN8I_GPB_UART2);
sunxi_gpio_set_cfgpin(SUNXI_GPB(1), SUN8I_GPB_UART2);
sunxi_gpio_set_pull(SUNXI_GPB(1), SUNXI_GPIO_PULL_UP);
#elif CONFIG_CONS_INDEX == 5 && defined(CONFIG_MACH_SUN8I)
sunxi_gpio_set_cfgpin(SUNXI_GPL(2), SUN8I_GPL_R_UART);
sunxi_gpio_set_cfgpin(SUNXI_GPL(3), SUN8I_GPL_R_UART);
sunxi_gpio_set_pull(SUNXI_GPL(3), SUNXI_GPIO_PULL_UP);
#elif CONFIG_CONS_INDEX == 2 && defined(CONFIG_MACH_SUN8I) && \
!defined(CONFIG_MACH_SUN8I_R40)
sunxi_gpio_set_cfgpin(SUNXI_GPG(6), SUN8I_GPG_UART1);
sunxi_gpio_set_cfgpin(SUNXI_GPG(7), SUN8I_GPG_UART1);
sunxi_gpio_set_pull(SUNXI_GPG(7), SUNXI_GPIO_PULL_UP);
#else
#error Unsupported console port number. Please fix pin mux settings in board.c
#endif
#ifdef CONFIG_SUN50I_GEN_H6
/* Update PIO power bias configuration by copy hardware detected value */
val = readl(SUNXI_PIO_BASE + SUN50I_H6_GPIO_POW_MOD_VAL);
writel(val, SUNXI_PIO_BASE + SUN50I_H6_GPIO_POW_MOD_SEL);
val = readl(SUNXI_R_PIO_BASE + SUN50I_H6_GPIO_POW_MOD_VAL);
writel(val, SUNXI_R_PIO_BASE + SUN50I_H6_GPIO_POW_MOD_SEL);
#endif
return 0;
}
static int spl_board_load_image(struct spl_image_info *spl_image,
struct spl_boot_device *bootdev)
{
debug("Returning to FEL sp=%x, lr=%x\n", fel_stash.sp, fel_stash.lr);
return_to_fel(fel_stash.sp, fel_stash.lr);
return 0;
}
SPL_LOAD_IMAGE_METHOD("FEL", 0, BOOT_DEVICE_BOARD, spl_board_load_image);
#endif
#define SUNXI_INVALID_BOOT_SOURCE -1
static int suniv_get_boot_source(void)
{
/* Get the last function call from BootROM's stack. */
u32 brom_call = *(u32 *)(uintptr_t)(fel_stash.sp - 4);
/* translate SUNIV BootROM stack to standard SUNXI boot sources */
switch (brom_call) {
case SUNIV_BOOTED_FROM_MMC0:
return SUNXI_BOOTED_FROM_MMC0;
case SUNIV_BOOTED_FROM_SPI:
return SUNXI_BOOTED_FROM_SPI;
case SUNIV_BOOTED_FROM_MMC1:
return SUNXI_BOOTED_FROM_MMC2;
/* SPI NAND is not supported yet. */
case SUNIV_BOOTED_FROM_NAND:
return SUNXI_INVALID_BOOT_SOURCE;
}
/* If we get here something went wrong try to boot from FEL.*/
printf("Unknown boot source from BROM: 0x%x\n", brom_call);
return SUNXI_INVALID_BOOT_SOURCE;
}
static int sunxi_get_boot_source(void)
{
/*
* On the ARMv5 SoCs, the SPL header in SRAM is overwritten by the
* exception vectors in U-Boot proper, so we won't find any
* information there. Also the FEL stash is only valid in the SPL,
* so we can't use that either. So if this is called from U-Boot
* proper, just return MMC0 as a placeholder, for now.
*/
if (IS_ENABLED(CONFIG_MACH_SUNIV) &&
!IS_ENABLED(CONFIG_SPL_BUILD))
return SUNXI_BOOTED_FROM_MMC0;
if (!is_boot0_magic(SPL_ADDR + 4)) /* eGON.BT0 */
return SUNXI_INVALID_BOOT_SOURCE;
if (IS_ENABLED(CONFIG_MACH_SUNIV))
return suniv_get_boot_source();
else
return readb(SPL_ADDR + 0x28);
}
/* The sunxi internal brom will try to loader external bootloader
* from mmc0, nand flash, mmc2.
*/
uint32_t sunxi_get_boot_device(void)
{
int boot_source = sunxi_get_boot_source();
/*
* When booting from the SD card or NAND memory, the "eGON.BT0"
* signature is expected to be found in memory at the address 0x0004
* (see the "mksunxiboot" tool, which generates this header).
*
* When booting in the FEL mode over USB, this signature is patched in
* memory and replaced with something else by the 'fel' tool. This other
* signature is selected in such a way, that it can't be present in a
* valid bootable SD card image (because the BROM would refuse to
* execute the SPL in this case).
*
* This checks for the signature and if it is not found returns to
* the FEL code in the BROM to wait and receive the main u-boot
* binary over USB. If it is found, it determines where SPL was
* read from.
*/
switch (boot_source) {
case SUNXI_INVALID_BOOT_SOURCE:
return BOOT_DEVICE_BOARD;
case SUNXI_BOOTED_FROM_MMC0:
case SUNXI_BOOTED_FROM_MMC0_HIGH:
return BOOT_DEVICE_MMC1;
case SUNXI_BOOTED_FROM_NAND:
return BOOT_DEVICE_NAND;
case SUNXI_BOOTED_FROM_MMC2:
case SUNXI_BOOTED_FROM_MMC2_HIGH:
return BOOT_DEVICE_MMC2;
case SUNXI_BOOTED_FROM_SPI:
return BOOT_DEVICE_SPI;
}
panic("Unknown boot source %d\n", boot_source);
return -1; /* Never reached */
}
#ifdef CONFIG_SPL_BUILD
static u32 sunxi_get_spl_size(void)
{
if (!is_boot0_magic(SPL_ADDR + 4)) /* eGON.BT0 */
return 0;
return readl(SPL_ADDR + 0x10);
}
/*
* The eGON SPL image can be located at 8KB or at 128KB into an SD card or
* an eMMC device. The boot source has bit 4 set in the latter case.
* By adding 120KB to the normal offset when booting from a "high" location
* we can support both cases.
* Also U-Boot proper is located at least 32KB after the SPL, but will
* immediately follow the SPL if that is bigger than that.
*/
unsigned long spl_mmc_get_uboot_raw_sector(struct mmc *mmc,
unsigned long raw_sect)
{
unsigned long spl_size = sunxi_get_spl_size();
unsigned long sector;
sector = max(raw_sect, spl_size / 512);
switch (sunxi_get_boot_source()) {
case SUNXI_BOOTED_FROM_MMC0_HIGH:
case SUNXI_BOOTED_FROM_MMC2_HIGH:
sector += (128 - 8) * 2;
break;
}
return sector;
}
u32 spl_boot_device(void)
{
return sunxi_get_boot_device();
}
__weak void sunxi_sram_init(void)
{
}
void board_init_f(ulong dummy)
{
sunxi_sram_init();
#if defined CONFIG_MACH_SUN6I || defined CONFIG_MACH_SUN8I_H3
/* Enable non-secure access to some peripherals */
tzpc_init();
#endif
clock_init();
timer_init();
gpio_init();
spl_init();
preloader_console_init();
#if CONFIG_IS_ENABLED(I2C) && CONFIG_IS_ENABLED(SYS_I2C_LEGACY)
/* Needed early by sunxi_board_init if PMU is enabled */
i2c_init_board();
i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
#endif
sunxi_board_init();
}
#endif
#if !CONFIG_IS_ENABLED(SYSRESET)
void reset_cpu(void)
{
#if defined(CONFIG_SUNXI_GEN_SUN4I) || defined(CONFIG_MACH_SUN8I_R40)
static const struct sunxi_wdog *wdog =
&((struct sunxi_timer_reg *)SUNXI_TIMER_BASE)->wdog;
/* Set the watchdog for its shortest interval (.5s) and wait */
writel(WDT_MODE_RESET_EN | WDT_MODE_EN, &wdog->mode);
writel(WDT_CTRL_KEY | WDT_CTRL_RESTART, &wdog->ctl);
while (1) {
/* sun5i sometimes gets stuck without this */
writel(WDT_MODE_RESET_EN | WDT_MODE_EN, &wdog->mode);
}
#elif defined(CONFIG_SUNXI_GEN_SUN6I) || defined(CONFIG_SUN50I_GEN_H6)
#if defined(CONFIG_MACH_SUN50I_H6)
/* WDOG is broken for some H6 rev. use the R_WDOG instead */
static const struct sunxi_wdog *wdog =
(struct sunxi_wdog *)SUNXI_R_WDOG_BASE;
#else
static const struct sunxi_wdog *wdog =
((struct sunxi_timer_reg *)SUNXI_TIMER_BASE)->wdog;
#endif
/* Set the watchdog for its shortest interval (.5s) and wait */
writel(WDT_CFG_RESET, &wdog->cfg);
writel(WDT_MODE_EN, &wdog->mode);
writel(WDT_CTRL_KEY | WDT_CTRL_RESTART, &wdog->ctl);
while (1) { }
#endif
}
#endif
#if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF) && !defined(CONFIG_ARM64)
void enable_caches(void)
{
/* Enable D-cache. I-cache is already enabled in start.S */
dcache_enable();
}
#endif
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