X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=arch%2Farm%2Fcpu%2Farmv7%2Fsunxi%2Fboard.c;h=e6730c0dfa1acdb0bda88406f32de0e6c42c31ae;hb=a881db09c073bfc043be8a7e909ac955fdd3794a;hp=6e28bcd040686a3cc2c36b72cb5f7ff1234da796;hpb=4608f37918e5d93d6b2b6909b325a5e6fb0a2346;p=oweals%2Fu-boot.git diff --git a/arch/arm/cpu/armv7/sunxi/board.c b/arch/arm/cpu/armv7/sunxi/board.c index 6e28bcd040..e6730c0dfa 100644 --- a/arch/arm/cpu/armv7/sunxi/board.c +++ b/arch/arm/cpu/armv7/sunxi/board.c @@ -12,8 +12,6 @@ #include #include -#include -#include #include #ifdef CONFIG_SPL_BUILD #include @@ -27,6 +25,17 @@ #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 +44,37 @@ 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_TX); + sunxi_gpio_set_cfgpin(SUNXI_GPF(4), SUN8I_GPF_UART0_RX); +#else + sunxi_gpio_set_cfgpin(SUNXI_GPF(2), SUNXI_GPF_UART0_TX); + sunxi_gpio_set_cfgpin(SUNXI_GPF(4), SUNXI_GPF_UART0_RX); +#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 == 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 @@ -65,15 +83,22 @@ 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" @@ -95,7 +120,34 @@ void s_init(void) */ u32 spl_boot_device(void) { - return BOOT_DEVICE_MMC1; +#ifdef CONFIG_SPL_FEL + /* + * This is the legacy compile time configuration for a special FEL + * enabled build. It has many restrictions and can only boot over USB. + */ + return BOOT_DEVICE_BOARD; +#else + /* + * When booting from the SD card, 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 branch is just making a decision at runtime whether to load + * the main u-boot binary from the SD card (if the "eGON.BT0" signature + * is found) or return to the FEL code in the BROM to wait and receive + * the main u-boot binary over USB. + */ + if (readl(4) == 0x4E4F4765 && readl(8) == 0x3054422E) /* eGON.BT0 */ + return BOOT_DEVICE_MMC1; + else + return BOOT_DEVICE_BOARD; +#endif } /* No confirmation data available in SPL yet. Hardcode bootmode */ @@ -123,7 +175,7 @@ void board_init_f(ulong dummy) 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 +187,8 @@ 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; @@ -168,14 +221,6 @@ int cpu_eth_init(bd_t *bis) 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) {