Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2025-02-18 06:58:54 +00:00
Code Issues Projects Releases Packages Wiki Activity

board: freescale: ls1028a: mux changes for lpuart

Browse source 
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>
This commit is contained in:
Yuantian Tang 2020-03-19 16:48:23 +08:00 • committed by Priyanka Jain
parent 643f5b47ec
commit 7dfa44f72e
2 changed files with 39 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

32
board/freescale/ls1028a/ls1028a.c
View file

@ -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;
}

7
include/configs/ls1028aqds.h
View file

@ -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