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Diffstat (limited to 'board/ti/am335x/board.c')
-rw-r--r--board/ti/am335x/board.c154
1 files changed, 121 insertions, 33 deletions
diff --git a/board/ti/am335x/board.c b/board/ti/am335x/board.c
index 0ed16ca..fc1353a 100644
--- a/board/ti/am335x/board.c
+++ b/board/ti/am335x/board.c
@@ -47,11 +47,19 @@ DECLARE_GLOBAL_DATA_PTR;
#define GPIO_MUX_MII_CTRL GPIO_TO_PIN(3, 10)
#define GPIO_FET_SWITCH_CTRL GPIO_TO_PIN(0, 7)
#define GPIO_PHY_RESET GPIO_TO_PIN(2, 5)
+#define GPIO_ETH0_MODE GPIO_TO_PIN(0, 11)
+#define GPIO_ETH1_MODE GPIO_TO_PIN(1, 26)
-#if defined(CONFIG_SPL_BUILD) || \
- (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_DM_ETH))
static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
-#endif
+
+#define GPIO0_RISINGDETECT (AM33XX_GPIO0_BASE + OMAP_GPIO_RISINGDETECT)
+#define GPIO1_RISINGDETECT (AM33XX_GPIO1_BASE + OMAP_GPIO_RISINGDETECT)
+
+#define GPIO0_IRQSTATUS1 (AM33XX_GPIO0_BASE + OMAP_GPIO_IRQSTATUS1)
+#define GPIO1_IRQSTATUS1 (AM33XX_GPIO1_BASE + OMAP_GPIO_IRQSTATUS1)
+
+#define GPIO0_IRQSTATUSRAW (AM33XX_GPIO0_BASE + 0x024)
+#define GPIO1_IRQSTATUSRAW (AM33XX_GPIO1_BASE + 0x024)
/*
* Read header information from EEPROM into global structure.
@@ -492,9 +500,9 @@ void sdram_init(void)
}
#endif
-#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
+#if !defined(CONFIG_SPL_BUILD) || \
(defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
-static void request_and_set_gpio(int gpio, char *name)
+static void request_and_set_gpio(int gpio, char *name, int val)
{
int ret;
@@ -510,7 +518,7 @@ static void request_and_set_gpio(int gpio, char *name)
goto err_free_gpio;
}
- gpio_set_value(gpio, 1);
+ gpio_set_value(gpio, val);
return;
@@ -518,7 +526,8 @@ err_free_gpio:
gpio_free(gpio);
}
-#define REQUEST_AND_SET_GPIO(N) request_and_set_gpio(N, #N);
+#define REQUEST_AND_SET_GPIO(N) request_and_set_gpio(N, #N, 1);
+#define REQUEST_AND_CLR_GPIO(N) request_and_set_gpio(N, #N, 0);
/**
* RMII mode on ICEv2 board needs 50MHz clock. Given the clock
@@ -548,20 +557,76 @@ int board_init(void)
#if defined(CONFIG_NOR) || defined(CONFIG_NAND)
gpmc_init();
#endif
-#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD))
- int rv;
+#if !defined(CONFIG_SPL_BUILD) || \
+ (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
if (board_is_icev2()) {
+ int rv;
+ u32 reg;
+
REQUEST_AND_SET_GPIO(GPIO_PR1_MII_CTRL);
- REQUEST_AND_SET_GPIO(GPIO_MUX_MII_CTRL);
+ /* Make J19 status available on GPIO1_26 */
+ REQUEST_AND_CLR_GPIO(GPIO_MUX_MII_CTRL);
+
REQUEST_AND_SET_GPIO(GPIO_FET_SWITCH_CTRL);
+ /*
+ * Both ports can be set as RMII-CPSW or MII-PRU-ETH using
+ * jumpers near the port. Read the jumper value and set
+ * the pinmux, external mux and PHY clock accordingly.
+ * As jumper line is overridden by PHY RX_DV pin immediately
+ * after bootstrap (power-up/reset), we need to sample
+ * it during PHY reset using GPIO rising edge detection.
+ */
REQUEST_AND_SET_GPIO(GPIO_PHY_RESET);
+ /* Enable rising edge IRQ on GPIO0_11 and GPIO 1_26 */
+ reg = readl(GPIO0_RISINGDETECT) | BIT(11);
+ writel(reg, GPIO0_RISINGDETECT);
+ reg = readl(GPIO1_RISINGDETECT) | BIT(26);
+ writel(reg, GPIO1_RISINGDETECT);
+ /* Reset PHYs to capture the Jumper setting */
+ gpio_set_value(GPIO_PHY_RESET, 0);
+ udelay(2); /* PHY datasheet states 1uS min. */
+ gpio_set_value(GPIO_PHY_RESET, 1);
+
+ reg = readl(GPIO0_IRQSTATUSRAW) & BIT(11);
+ if (reg) {
+ writel(reg, GPIO0_IRQSTATUS1); /* clear irq */
+ /* RMII mode */
+ printf("ETH0, CPSW\n");
+ } else {
+ /* MII mode */
+ printf("ETH0, PRU\n");
+ cdce913_data.pdiv3 = 4; /* 25MHz PHY clk */
+ }
+
+ reg = readl(GPIO1_IRQSTATUSRAW) & BIT(26);
+ if (reg) {
+ writel(reg, GPIO1_IRQSTATUS1); /* clear irq */
+ /* RMII mode */
+ printf("ETH1, CPSW\n");
+ gpio_set_value(GPIO_MUX_MII_CTRL, 1);
+ } else {
+ /* MII mode */
+ printf("ETH1, PRU\n");
+ cdce913_data.pdiv2 = 4; /* 25MHz PHY clk */
+ }
+
+ /* disable rising edge IRQs */
+ reg = readl(GPIO0_RISINGDETECT) & ~BIT(11);
+ writel(reg, GPIO0_RISINGDETECT);
+ reg = readl(GPIO1_RISINGDETECT) & ~BIT(26);
+ writel(reg, GPIO1_RISINGDETECT);
rv = setup_clock_synthesizer(&cdce913_data);
if (rv) {
printf("Clock synthesizer setup failed %d\n", rv);
return rv;
}
+
+ /* reset PHYs */
+ gpio_set_value(GPIO_PHY_RESET, 0);
+ udelay(2); /* PHY datasheet states 1uS min. */
+ gpio_set_value(GPIO_PHY_RESET, 1);
}
#endif
@@ -571,6 +636,11 @@ int board_init(void)
#ifdef CONFIG_BOARD_LATE_INIT
int board_late_init(void)
{
+#if !defined(CONFIG_SPL_BUILD)
+ uint8_t mac_addr[6];
+ uint32_t mac_hi, mac_lo;
+#endif
+
#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
int rc;
char *name = NULL;
@@ -584,6 +654,39 @@ int board_late_init(void)
set_board_info_env(name);
#endif
+#if !defined(CONFIG_SPL_BUILD)
+ /* try reading mac address from efuse */
+ mac_lo = readl(&cdev->macid0l);
+ mac_hi = readl(&cdev->macid0h);
+ mac_addr[0] = mac_hi & 0xFF;
+ mac_addr[1] = (mac_hi & 0xFF00) >> 8;
+ mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
+ mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
+ mac_addr[4] = mac_lo & 0xFF;
+ mac_addr[5] = (mac_lo & 0xFF00) >> 8;
+
+ if (!getenv("ethaddr")) {
+ printf("<ethaddr> not set. Validating first E-fuse MAC\n");
+
+ if (is_valid_ethaddr(mac_addr))
+ eth_setenv_enetaddr("ethaddr", mac_addr);
+ }
+
+ mac_lo = readl(&cdev->macid1l);
+ mac_hi = readl(&cdev->macid1h);
+ mac_addr[0] = mac_hi & 0xFF;
+ mac_addr[1] = (mac_hi & 0xFF00) >> 8;
+ mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
+ mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
+ mac_addr[4] = mac_lo & 0xFF;
+ mac_addr[5] = (mac_lo & 0xFF00) >> 8;
+
+ if (!getenv("eth1addr")) {
+ if (is_valid_ethaddr(mac_addr))
+ eth_setenv_enetaddr("eth1addr", mac_addr);
+ }
+#endif
+
return 0;
}
#endif
@@ -652,11 +755,15 @@ static struct cpsw_platform_data cpsw_data = {
int board_eth_init(bd_t *bis)
{
int rv, n = 0;
+#if defined(CONFIG_USB_ETHER) && \
+ (!defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_USBETH_SUPPORT))
uint8_t mac_addr[6];
uint32_t mac_hi, mac_lo;
- __maybe_unused struct ti_am_eeprom *header;
- /* try reading mac address from efuse */
+ /*
+ * use efuse mac address for USB ethernet as we know that
+ * both CPSW and USB ethernet will never be active at the same time
+ */
mac_lo = readl(&cdev->macid0l);
mac_hi = readl(&cdev->macid0h);
mac_addr[0] = mac_hi & 0xFF;
@@ -665,32 +772,13 @@ int board_eth_init(bd_t *bis)
mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
mac_addr[4] = mac_lo & 0xFF;
mac_addr[5] = (mac_lo & 0xFF00) >> 8;
+#endif
+
#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
(defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
- if (!getenv("ethaddr")) {
- printf("<ethaddr> not set. Validating first E-fuse MAC\n");
-
- if (is_valid_ethaddr(mac_addr))
- eth_setenv_enetaddr("ethaddr", mac_addr);
- }
#ifdef CONFIG_DRIVER_TI_CPSW
-
- mac_lo = readl(&cdev->macid1l);
- mac_hi = readl(&cdev->macid1h);
- mac_addr[0] = mac_hi & 0xFF;
- mac_addr[1] = (mac_hi & 0xFF00) >> 8;
- mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
- mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
- mac_addr[4] = mac_lo & 0xFF;
- mac_addr[5] = (mac_lo & 0xFF00) >> 8;
-
- if (!getenv("eth1addr")) {
- if (is_valid_ethaddr(mac_addr))
- eth_setenv_enetaddr("eth1addr", mac_addr);
- }
-
if (read_eeprom() < 0)
puts("Could not get board ID.\n");
generated by cgit v0.10.2 at 2024-08-04 02:21:12 (GMT)