From: Jagannadha Sutradharudu Teki jagannadha.sutradharudu-teki@xilinx.com
Added support to find the bootmodes by reading slcr bootmode register. this can be helpful to autoboot the configurations w.r.t a specified bootmode.
Added this functionality on board_late_init as it's not needed for normal initializtion part.
Signed-off-by: Jagannadha Sutradharudu Teki jaganna@xilinx.com Signed-off-by: Michal Simek michal.simek@xilinx.com
---
Changes in v1: - Remove doc compare to origin Jagan version
arch/arm/cpu/armv7/zynq/slcr.c | 6 ++++++ arch/arm/include/asm/arch-zynq/sys_proto.h | 1 + board/xilinx/zynq/board.c | 25 +++++++++++++++++++++++++ include/configs/zynq.h | 1 + 4 files changed, 33 insertions(+)
diff --git a/arch/arm/cpu/armv7/zynq/slcr.c b/arch/arm/cpu/armv7/zynq/slcr.c index 717ec65..b4c11c3 100644 --- a/arch/arm/cpu/armv7/zynq/slcr.c +++ b/arch/arm/cpu/armv7/zynq/slcr.c @@ -101,6 +101,12 @@ void zynq_slcr_devcfg_enable(void) zynq_slcr_lock(); }
+u32 zynq_slcr_get_boot_mode(void) +{ + /* Get the bootmode register value */ + return readl(&slcr_base->boot_mode); +} + u32 zynq_slcr_get_idcode(void) { return (readl(&slcr_base->pss_idcode) & SLCR_IDCODE_MASK) >> diff --git a/arch/arm/include/asm/arch-zynq/sys_proto.h b/arch/arm/include/asm/arch-zynq/sys_proto.h index bb089b6..86e7db5 100644 --- a/arch/arm/include/asm/arch-zynq/sys_proto.h +++ b/arch/arm/include/asm/arch-zynq/sys_proto.h @@ -13,6 +13,7 @@ extern void zynq_slcr_cpu_reset(void); extern void zynq_slcr_gem_clk_setup(u32 gem_id, u32 rclk, u32 clk); extern void zynq_slcr_devcfg_disable(void); extern void zynq_slcr_devcfg_enable(void); +extern u32 zynq_slcr_get_boot_mode(void); extern u32 zynq_slcr_get_idcode(void); extern void zynq_ddrc_init(void);
diff --git a/board/xilinx/zynq/board.c b/board/xilinx/zynq/board.c index 6b691f3..6629b20 100644 --- a/board/xilinx/zynq/board.c +++ b/board/xilinx/zynq/board.c @@ -13,6 +13,12 @@
DECLARE_GLOBAL_DATA_PTR;
+/* Bootmode setting values */ +#define ZYNQ_BM_MASK 0x0F +#define ZYNQ_BM_NOR 0x02 +#define ZYNQ_BM_SD 0x05 +#define ZYNQ_BM_JTAG 0x0 + #ifdef CONFIG_FPGA Xilinx_desc fpga;
@@ -60,6 +66,25 @@ int board_init(void) return 0; }
+int board_late_init(void) +{ + switch ((zynq_slcr_get_boot_mode()) & ZYNQ_BM_MASK) { + case ZYNQ_BM_NOR: + setenv("modeboot", "norboot"); + break; + case ZYNQ_BM_SD: + setenv("modeboot", "sdboot"); + break; + case ZYNQ_BM_JTAG: + setenv("modeboot", "jtagboot"); + break; + default: + setenv("modeboot", ""); + break; + } + + return 0; +}
#ifdef CONFIG_CMD_NET int board_eth_init(bd_t *bis) diff --git a/include/configs/zynq.h b/include/configs/zynq.h index ed7de6c..5e7adc2 100644 --- a/include/configs/zynq.h +++ b/include/configs/zynq.h @@ -153,6 +153,7 @@
#define CONFIG_CMDLINE_EDITING #define CONFIG_AUTO_COMPLETE +#define CONFIG_BOARD_LATE_INIT #define CONFIG_SYS_LONGHELP #define CONFIG_SYS_MAXARGS 15 /* max number of command args */ #define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */ -- 1.8.2.3