diff options
| -rw-r--r-- | board/freescale/ls1028a/ls1028a.c | 32 | ||||
| -rw-r--r-- | include/configs/ls1028aqds.h | 7 |
2 files changed, 39 insertions, 0 deletions
diff --git a/board/freescale/ls1028a/ls1028a.c b/board/freescale/ls1028a/ls1028a.c index 0b7504aea1..1e2973f0c8 100644 --- a/board/freescale/ls1028a/ls1028a.c +++ b/board/freescale/ls1028a/ls1028a.c @@ -31,6 +31,7 @@ DECLARE_GLOBAL_DATA_PTR; int config_board_mux(void) { +#ifndef CONFIG_LPUART #if defined(CONFIG_TARGET_LS1028AQDS) && defined(CONFIG_FSL_QIXIS) u8 reg; @@ -55,9 +56,18 @@ int config_board_mux(void) 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 misc_init_r(void) 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 818b994b90..b91016987b 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 |