From 44cdb5b6a10a7eb2e240866cb842e44ff9999960 Mon Sep 17 00:00:00 2001 From: Yangbo Lu Date: Mon, 27 Nov 2017 15:40:17 +0800 Subject: [PATCH] armv8: ls1088ardb: support force SDHC mode by hwconfig The BRDCFG5[SPISDHC] register field of Qixis device is used to control SPI and SDHC signal routing. 10 = Force SDHC Mode - SPI_CS[0] is routed to CPLD for SDHC_VS use. - SPI_CS[1] is unused. - SPI_CS[2:3] are routed to the TDMRiser slot. 11 = Force eMMC Mode - SPI_CS[0:3] are routed to the eMMC card. 0X = Auto Mode - If SDHC_CS_B=0 (SDHC card installed): Use SDHC mode described above. - Else SDHC_CS_B=1 (no SDHC card installed): Use eMMC mode described above. In default the hardware uses auto mode, but sometimes we need to use force SDHC mode to support SD card hotplug, or SD sleep waking up in kernel. This patch is to support force SDHC mode by hwconfig. Signed-off-by: Yangbo Lu Reviewed-by: York Sun --- board/freescale/ls1088a/ls1088a.c | 18 ++++++++++++++++++ board/freescale/ls1088a/ls1088a_qixis.h | 6 ++++++ include/configs/ls1088ardb.h | 2 ++ 3 files changed, 26 insertions(+) diff --git a/board/freescale/ls1088a/ls1088a.c b/board/freescale/ls1088a/ls1088a.c index 9daa007590..cb589575b3 100644 --- a/board/freescale/ls1088a/ls1088a.c +++ b/board/freescale/ls1088a/ls1088a.c @@ -18,6 +18,7 @@ #include #include #include +#include #include "../common/qixis.h" #include "ls1088a_qixis.h" @@ -296,6 +297,23 @@ void board_retimer_init(void) select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT); } +#ifdef CONFIG_MISC_INIT_R +int misc_init_r(void) +{ +#ifdef CONFIG_TARGET_LS1088ARDB + u8 brdcfg5; + + if (hwconfig("esdhc-force-sd")) { + brdcfg5 = QIXIS_READ(brdcfg[5]); + brdcfg5 &= ~BRDCFG5_SPISDHC_MASK; + brdcfg5 |= BRDCFG5_FORCE_SD; + QIXIS_WRITE(brdcfg[5], brdcfg5); + } +#endif + return 0; +} +#endif + int board_init(void) { init_final_memctl_regs(); diff --git a/board/freescale/ls1088a/ls1088a_qixis.h b/board/freescale/ls1088a/ls1088a_qixis.h index 4790461b47..6cad396cff 100644 --- a/board/freescale/ls1088a/ls1088a_qixis.h +++ b/board/freescale/ls1088a/ls1088a_qixis.h @@ -36,4 +36,10 @@ #define BRDCFG9_SFPTX_MASK 0x10 #define BRDCFG9_SFPTX_SHIFT 4 +/* Definitions of QIXIS Registers for LS1088ARDB */ + +/* BRDCFG5 */ +#define BRDCFG5_SPISDHC_MASK 0x0C +#define BRDCFG5_FORCE_SD 0x08 + #endif diff --git a/include/configs/ls1088ardb.h b/include/configs/ls1088ardb.h index 1da8153a4e..1438bec1af 100644 --- a/include/configs/ls1088ardb.h +++ b/include/configs/ls1088ardb.h @@ -11,6 +11,8 @@ #define CONFIG_DISPLAY_BOARDINFO_LATE +#define CONFIG_MISC_INIT_R + #if defined(CONFIG_QSPI_BOOT) #define CONFIG_ENV_SIZE 0x2000 /* 8KB */ #define CONFIG_ENV_OFFSET 0x300000 /* 3MB */ -- 2.39.2