X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=arch%2Farm%2Fcpu%2Farmv7%2Fsunxi%2Fboard.c;h=4785ac68a9a2241a05b53d96f60b8d674c9e69b1;hb=a69fdc7787bfa2f27eed74c2ee58c28ce932d502;hp=6e28bcd040686a3cc2c36b72cb5f7ff1234da796;hpb=ec0cc98f2cb7fa217ed0a1a54978e2d8f2fbc20c;p=platform%2Fkernel%2Fu-boot.git diff --git a/arch/arm/cpu/armv7/sunxi/board.c b/arch/arm/cpu/armv7/sunxi/board.c index 6e28bcd..4785ac6 100644 --- a/arch/arm/cpu/armv7/sunxi/board.c +++ b/arch/arm/cpu/armv7/sunxi/board.c @@ -11,9 +11,8 @@ */ #include +#include #include -#include -#include #include #ifdef CONFIG_SPL_BUILD #include @@ -22,11 +21,25 @@ #include #include #include +#include #include #include +#include +#include #include +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 __attribute__((section(".data"))); + static int gpio_init(void) { #if CONFIG_CONS_INDEX == 1 && defined(CONFIG_UART0_PORT_F) @@ -35,28 +48,45 @@ static int gpio_init(void) sunxi_gpio_set_cfgpin(SUNXI_GPB(22), SUNXI_GPIO_INPUT); sunxi_gpio_set_cfgpin(SUNXI_GPB(23), SUNXI_GPIO_INPUT); #endif - sunxi_gpio_set_cfgpin(SUNXI_GPF(2), SUNXI_GPF2_UART0_TX); - sunxi_gpio_set_cfgpin(SUNXI_GPF(4), SUNXI_GPF4_UART0_RX); +#if defined(CONFIG_MACH_SUN8I) + 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_SUN4I) || defined(CONFIG_MACH_SUN7I)) - sunxi_gpio_set_cfgpin(SUNXI_GPB(22), SUN4I_GPB22_UART0_TX); - sunxi_gpio_set_cfgpin(SUNXI_GPB(23), SUN4I_GPB23_UART0_RX); + 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_GPB19_UART0_TX); - sunxi_gpio_set_cfgpin(SUNXI_GPB(20), SUN5I_GPB20_UART0_RX); + 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_GPH20_UART0_TX); - sunxi_gpio_set_cfgpin(SUNXI_GPH(21), SUN6I_GPH21_UART0_RX); + 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_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_GPG3_UART1_TX); - sunxi_gpio_set_cfgpin(SUNXI_GPG(4), SUN5I_GPG4_UART1_RX); + 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_GPL2_R_UART_TX); - sunxi_gpio_set_cfgpin(SUNXI_GPL(3), SUN8I_GPL3_R_UART_RX); + 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); #else #error Unsupported console port number. Please fix pin mux settings in board.c @@ -65,21 +95,32 @@ static int gpio_init(void) return 0; } +void spl_board_load_image(void) +{ + debug("Returning to FEL sp=%x, lr=%x\n", fel_stash.sp, fel_stash.lr); + return_to_fel(fel_stash.sp, fel_stash.lr); +} + void s_init(void) { -#if defined CONFIG_MACH_SUN6I || defined CONFIG_MACH_SUN8I +#if defined CONFIG_MACH_SUN6I || defined CONFIG_MACH_SUN8I_A23 /* Magic (undocmented) value taken from boot0, without this DRAM * access gets messed up (seems cache related) */ setbits_le32(SUNXI_SRAMC_BASE + 0x44, 0x1800); #endif -#if !defined CONFIG_SPL_BUILD && (defined CONFIG_MACH_SUN7I || \ - defined CONFIG_MACH_SUN6I || defined CONFIG_MACH_SUN8I) +#if defined CONFIG_MACH_SUN6I || \ + defined CONFIG_MACH_SUN7I || \ + defined CONFIG_MACH_SUN8I /* Enable SMP mode for CPU0, by setting bit 6 of Auxiliary Ctl reg */ asm volatile( "mrc p15, 0, r0, c1, c0, 1\n" "orr r0, r0, #1 << 6\n" "mcr p15, 0, r0, c1, c0, 1\n"); #endif +#if defined CONFIG_MACH_SUN6I + /* Enable non-secure access to the RTC */ + tzpc_init(); +#endif clock_init(); timer_init(); @@ -88,14 +129,63 @@ void s_init(void) } #ifdef CONFIG_SPL_BUILD +DECLARE_GLOBAL_DATA_PTR; + /* The sunxi internal brom will try to loader external bootloader * from mmc0, nand flash, mmc2. - * Unfortunately we can't check how SPL was loaded so assume - * it's always the first SD/MMC controller */ u32 spl_boot_device(void) { - return BOOT_DEVICE_MMC1; + __maybe_unused struct mmc *mmc0, *mmc1; + /* + * 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. + */ + if (!is_boot0_magic(SPL_ADDR + 4)) /* eGON.BT0 */ + return BOOT_DEVICE_BOARD; + + /* The BROM will try to boot from mmc0 first, so try that first. */ +#ifdef CONFIG_MMC + mmc_initialize(gd->bd); + mmc0 = find_mmc_device(0); + if (sunxi_mmc_has_egon_boot_signature(mmc0)) + return BOOT_DEVICE_MMC1; +#endif + + /* Fallback to booting NAND if enabled. */ + if (IS_ENABLED(CONFIG_SPL_NAND_SUPPORT)) + return BOOT_DEVICE_NAND; + +#ifdef CONFIG_MMC + if (CONFIG_MMC_SUNXI_SLOT_EXTRA == 2) { + mmc1 = find_mmc_device(1); + if (sunxi_mmc_has_egon_boot_signature(mmc1)) { + /* + * spl_mmc.c: spl_mmc_load_image() is hard-coded to + * use find_mmc_device(0), no matter what we + * return. Swap mmc0 and mmc2 to make this work. + */ + mmc0->block_dev.dev = 1; + mmc1->block_dev.dev = 0; + return BOOT_DEVICE_MMC2; + } + } +#endif + + panic("Could not determine boot source\n"); + return -1; /* Never reached */ } /* No confirmation data available in SPL yet. Hardcode bootmode */ @@ -106,6 +196,7 @@ u32 spl_boot_mode(void) void board_init_f(ulong dummy) { + spl_init(); preloader_console_init(); #ifdef CONFIG_SPL_I2C_SUPPORT @@ -113,17 +204,12 @@ void board_init_f(ulong dummy) i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); #endif sunxi_board_init(); - - /* Clear the BSS. */ - memset(__bss_start, 0, __bss_end - __bss_start); - - board_init_r(NULL, 0); } #endif void reset_cpu(ulong addr) { -#if defined(CONFIG_MACH_SUN4I) || defined(CONFIG_MACH_SUN5I) || defined(CONFIG_MACH_SUN7I) +#ifdef CONFIG_SUNXI_GEN_SUN4I static const struct sunxi_wdog *wdog = &((struct sunxi_timer_reg *)SUNXI_TIMER_BASE)->wdog; @@ -135,7 +221,8 @@ void reset_cpu(ulong addr) /* sun5i sometimes gets stuck without this */ writel(WDT_MODE_RESET_EN | WDT_MODE_EN, &wdog->mode); } -#else /* CONFIG_MACH_SUN6I || CONFIG_MACH_SUN8I || .. */ +#endif +#ifdef CONFIG_SUNXI_GEN_SUN6I static const struct sunxi_wdog *wdog = ((struct sunxi_timer_reg *)SUNXI_TIMER_BASE)->wdog; @@ -143,6 +230,7 @@ void reset_cpu(ulong addr) writel(WDT_CFG_RESET, &wdog->cfg); writel(WDT_MODE_EN, &wdog->mode); writel(WDT_CTRL_KEY | WDT_CTRL_RESTART, &wdog->ctl); + while (1) { } #endif } @@ -164,18 +252,11 @@ int cpu_eth_init(bd_t *bis) __maybe_unused int rc; #ifdef CONFIG_MACPWR + gpio_request(CONFIG_MACPWR, "macpwr"); gpio_direction_output(CONFIG_MACPWR, 1); mdelay(200); #endif -#ifdef CONFIG_SUNXI_EMAC - rc = sunxi_emac_initialize(bis); - if (rc < 0) { - printf("sunxi: failed to initialize emac\n"); - return rc; - } -#endif - #ifdef CONFIG_SUNXI_GMAC rc = sunxi_gmac_initialize(bis); if (rc < 0) {