X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=arch%2Farm%2Fcpu%2Farmv7%2Fsunxi%2Fboard.c;h=5f39aa07cfb03dc66c35cc8b973f14ee49aeeda1;hb=37f4d0ec34a4333ae9417c512faf7242e8ebeae3;hp=f2cedbb1568a8eaf5dd7c8a3c6ef4acc085286a1;hpb=3e1b36bd584228b0a8070c8b63351aefda652523;p=oweals%2Fu-boot.git

diff --git a/arch/arm/cpu/armv7/sunxi/board.c b/arch/arm/cpu/armv7/sunxi/board.c
index f2cedbb156..5f39aa07cf 100644
--- a/arch/arm/cpu/armv7/sunxi/board.c
+++ b/arch/arm/cpu/armv7/sunxi/board.c
@@ -12,8 +12,6 @@
 
 #include <common.h>
 #include <i2c.h>
-#include <netdev.h>
-#include <miiphy.h>
 #include <serial.h>
 #ifdef CONFIG_SPL_BUILD
 #include <spl.h>
@@ -27,41 +25,65 @@
 
 #include <linux/compiler.h>
 
-#ifdef CONFIG_SPL_BUILD
-/* Pointer to the global data structure for SPL */
-DECLARE_GLOBAL_DATA_PTR;
+struct fel_stash {
+	uint32_t sp;
+	uint32_t lr;
+	uint32_t cpsr;
+	uint32_t sctlr;
+	uint32_t vbar;
+	uint32_t cr;
+};
 
-/* 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;
-}
+struct fel_stash fel_stash __attribute__((section(".data")));
 
-/* No confirmation data available in SPL yet. Hardcode bootmode */
-u32 spl_boot_mode(void)
+static int gpio_init(void)
 {
-	return MMCSD_MODE_RAW;
-}
+#if CONFIG_CONS_INDEX == 1 && defined(CONFIG_UART0_PORT_F)
+#if defined(CONFIG_MACH_SUN4I) || defined(CONFIG_MACH_SUN7I)
+	/* 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
-
-int gpio_init(void)
-{
-#if CONFIG_CONS_INDEX == 1 && (defined(CONFIG_SUN4I) || defined(CONFIG_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_pull(SUNXI_GPB(23), 1);
-#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_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_pull(SUNXI_GPB(20), 1);
-#elif CONFIG_CONS_INDEX == 2 && defined(CONFIG_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_pull(SUNXI_GPG(4), 1);
+#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_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_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);
 #else
 #error Unsupported console port number. Please fix pin mux settings in board.c
 #endif
@@ -69,25 +91,22 @@ int gpio_init(void)
 	return 0;
 }
 
-void reset_cpu(ulong addr)
+void spl_board_load_image(void)
 {
-	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);
-	}
+	debug("Returning to FEL sp=%x, lr=%x\n", fel_stash.sp, fel_stash.lr);
+	return_to_fel(fel_stash.sp, fel_stash.lr);
 }
 
-/* do some early init */
 void s_init(void)
 {
-#if !defined CONFIG_SPL_BUILD && (defined CONFIG_SUN7I || defined CONFIG_SUN6I)
+#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_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"
@@ -99,9 +118,46 @@ void s_init(void)
 	timer_init();
 	gpio_init();
 	i2c_init_board();
+}
 
 #ifdef CONFIG_SPL_BUILD
-	gd = &gdata;
+/* 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)
+{
+	/*
+	 * 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;
+}
+
+/* No confirmation data available in SPL yet. Hardcode bootmode */
+u32 spl_boot_mode(void)
+{
+	return MMCSD_MODE_RAW;
+}
+
+void board_init_f(ulong dummy)
+{
 	preloader_console_init();
 
 #ifdef CONFIG_SPL_I2C_SUPPORT
@@ -109,6 +165,38 @@ void s_init(void)
 	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)
+{
+#ifdef CONFIG_SUNXI_GEN_SUN4I
+	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);
+	}
+#endif
+#ifdef CONFIG_SUNXI_GEN_SUN6I
+	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_CFG_RESET, &wdog->cfg);
+	writel(WDT_MODE_EN, &wdog->mode);
+	writel(WDT_CTRL_KEY | WDT_CTRL_RESTART, &wdog->ctl);
+	while (1) { }
 #endif
 }
 
@@ -130,18 +218,11 @@ 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) {