From 1748990ab2a0e995beeed6b3856335f579bb77d9 Mon Sep 17 00:00:00 2001 From: Chuanhua Han Date: Thu, 1 Aug 2019 16:36:57 +0800 Subject: [PATCH] armv8: ls1088aqds: support DSPI mode by hwconfig BRDCFG4[USBOSC] and BRDCFG5[SPR] register field of Qixis device is used to control SPI and other IP signal routing. USBOSC: 0= SPI_CLK used as external USB REFCLK input driven with 24.000 MHz. SPI devices are unusable in this mode. 1= SPI_CLK used as SPI clock. SPI devices are usable in this mode. USB block is clocked from internal sources SPR[3:2]: SPI_CS / SDHC_DAT4:7 Routing (schematic net CFG_SPI_ROUTE[3:2]): 00= SDHC/eMMC 8-bit 01= SD Card Rev 2.0/3.0 10= SPI on-board memory 11= TDM Riser / SPI off-board connector. The default value is 00 if an SDCard/eMMC card is selected as the boot device. SPR[1:0]: SPI_SIN/SOUT/SCK Routing (schematic net CFG_SPI_ROUTE[1:0]): 00= SDHC Sync loop 01= TDM Riser / SPI off-board connector. 10= SPI on-board memory. 11= SPI off-board connector. By default, the SPI feature is not available, so we need to configure the above register fields to select the route to the SPI feature. Signed-off-by: Chuanhua Han Reviewed-by: Prabhakar Kushwaha --- board/freescale/ls1088a/ls1088a.c | 26 +++++++++++++++++++++++++ board/freescale/ls1088a/ls1088a_qixis.h | 11 +++++++++++ include/configs/ls1088aqds.h | 2 ++ 3 files changed, 39 insertions(+) diff --git a/board/freescale/ls1088a/ls1088a.c b/board/freescale/ls1088a/ls1088a.c index 1033d44409..b851e159bc 100644 --- a/board/freescale/ls1088a/ls1088a.c +++ b/board/freescale/ls1088a/ls1088a.c @@ -591,6 +591,32 @@ int misc_init_r(void) QIXIS_WRITE(brdcfg[5], brdcfg5); } #endif + +#ifdef CONFIG_TARGET_LS1088AQDS + u8 brdcfg4, brdcfg5; + + if (hwconfig("dspi-on-board")) { + brdcfg4 = QIXIS_READ(brdcfg[4]); + brdcfg4 &= ~BRDCFG4_USBOSC_MASK; + brdcfg4 |= BRDCFG4_SPI; + QIXIS_WRITE(brdcfg[4], brdcfg4); + + brdcfg5 = QIXIS_READ(brdcfg[5]); + brdcfg5 &= ~BRDCFG5_SPR_MASK; + brdcfg5 |= BRDCFG5_SPI_ON_BOARD; + QIXIS_WRITE(brdcfg[5], brdcfg5); + } else if (hwconfig("dspi-off-board")) { + brdcfg4 = QIXIS_READ(brdcfg[4]); + brdcfg4 &= ~BRDCFG4_USBOSC_MASK; + brdcfg4 |= BRDCFG4_SPI; + QIXIS_WRITE(brdcfg[4], brdcfg4); + + brdcfg5 = QIXIS_READ(brdcfg[5]); + brdcfg5 &= ~BRDCFG5_SPR_MASK; + brdcfg5 |= BRDCFG5_SPI_OFF_BOARD; + QIXIS_WRITE(brdcfg[5], brdcfg5); + } +#endif return 0; } #endif diff --git a/board/freescale/ls1088a/ls1088a_qixis.h b/board/freescale/ls1088a/ls1088a_qixis.h index c58852617f..e3502eb1d1 100644 --- a/board/freescale/ls1088a/ls1088a_qixis.h +++ b/board/freescale/ls1088a/ls1088a_qixis.h @@ -41,4 +41,15 @@ #define BRDCFG5_SPISDHC_MASK 0x0C #define BRDCFG5_FORCE_SD 0x08 +/* Definitions of QIXIS Registers for LS1088AQDS */ + +/* BRDCFG4 */ +#define BRDCFG4_USBOSC_MASK 0x01 +#define BRDCFG4_SPI 0x01 + +/* BRDCFG5 */ +#define BRDCFG5_SPR_MASK 0x0f +#define BRDCFG5_SPI_ON_BOARD 0x0a +#define BRDCFG5_SPI_OFF_BOARD 0x0f + #endif diff --git a/include/configs/ls1088aqds.h b/include/configs/ls1088aqds.h index 8b62bbe684..85e20617e6 100644 --- a/include/configs/ls1088aqds.h +++ b/include/configs/ls1088aqds.h @@ -17,6 +17,8 @@ unsigned long get_board_ddr_clk(void); #ifdef CONFIG_TFABOOT #define CONFIG_SYS_MMC_ENV_DEV 0 +#define CONFIG_MISC_INIT_R + #define CONFIG_ENV_SIZE 0x20000 #define CONFIG_ENV_OFFSET 0x500000 #define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + \ -- 2.25.1