board: freescale: ls1028a: mux changes for lpuart
mux changes in board file to enable lpuart1 and macro
define for lpuart1 used for mux changes in board configuation
register 13
Signed-off-by: Vabhav Sharma <vabhav.sharma@nxp.com>
Signed-off-by: Yuantian Tang <andy.tang@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/board/freescale/ls1028a/ls1028a.c b/board/freescale/ls1028a/ls1028a.c
index 0b7504a..1e2973f 100644
--- a/board/freescale/ls1028a/ls1028a.c
+++ b/board/freescale/ls1028a/ls1028a.c
@@ -31,6 +31,7 @@
int config_board_mux(void)
{
+#ifndef CONFIG_LPUART
#if defined(CONFIG_TARGET_LS1028AQDS) && defined(CONFIG_FSL_QIXIS)
u8 reg;
@@ -55,9 +56,18 @@
reg &= ~(0xc0);
QIXIS_WRITE(brdcfg[15], reg);
#endif
+#endif
+
return 0;
}
+#ifdef CONFIG_LPUART
+u32 get_lpuart_clk(void)
+{
+ return gd->bus_clk / CONFIG_SYS_FSL_LPUART_CLK_DIV;
+}
+#endif
+
int board_init(void)
{
#ifdef CONFIG_ENV_IS_NOWHERE
@@ -120,11 +130,33 @@
int board_early_init_f(void)
{
+#ifdef CONFIG_LPUART
+ u8 uart;
+#endif
+
#ifdef CONFIG_SYS_I2C_EARLY_INIT
i2c_early_init_f();
#endif
fsl_lsch3_early_init_f();
+
+#ifdef CONFIG_LPUART
+ /*
+ * Field| Function
+ * --------------------------------------------------------------
+ * 7-6 | Controls I2C3 routing (net CFG_MUX_I2C3):
+ * I2C3 | 11= Routes {SCL, SDA} to LPUART1 header as {SOUT, SIN}.
+ * --------------------------------------------------------------
+ * 5-4 | Controls I2C4 routing (net CFG_MUX_I2C4):
+ * I2C4 |11= Routes {SCL, SDA} to LPUART1 header as {CTS_B, RTS_B}.
+ */
+ /* use lpuart0 as system console */
+ uart = QIXIS_READ(brdcfg[13]);
+ uart &= ~CFG_LPUART_MUX_MASK;
+ uart |= CFG_LPUART_EN;
+ QIXIS_WRITE(brdcfg[13], uart);
+#endif
+
return 0;
}
diff --git a/include/configs/ls1028aqds.h b/include/configs/ls1028aqds.h
index 818b994..b910169 100644
--- a/include/configs/ls1028aqds.h
+++ b/include/configs/ls1028aqds.h
@@ -66,6 +66,13 @@
#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE
#endif
+/* LPUART */
+#ifdef CONFIG_LPUART
+#define CONFIG_LPUART_32B_REG
+#define CFG_LPUART_MUX_MASK 0xf0
+#define CFG_LPUART_EN 0xf0
+#endif
+
/* SATA */
#define CONFIG_SCSI_AHCI_PLAT