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arm64: zynqmp: Dont write to system timestamp generator

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Remove incorrect code of writing to system timestamp
counter registers. This register writes does nothing
and can be removed.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Siva Durga Prasad Paladugu 2017-02-21 17:58:29 +05:30 committed by Michal Simek
parent 90a35db410
commit 4b5b0fcd21
2 changed files with 0 additions and 15 deletions
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9
arch/arm/include/asm/arch-zynqmp/hardware.h
View File

@ -48,18 +48,9 @@ struct crlapb_regs {
#define crlapb_base ((struct crlapb_regs *)ZYNQMP_CRL_APB_BASEADDR) #define crlapb_base ((struct crlapb_regs *)ZYNQMP_CRL_APB_BASEADDR)
#define ZYNQMP_IOU_SCNTR_SECURE 0xFF260000 #define ZYNQMP_IOU_SCNTR_SECURE 0xFF260000
#define ZYNQMP_IOU_SCNTR 0xFF250000
#define ZYNQMP_IOU_SCNTR_COUNTER_CONTROL_REGISTER_EN 0x1 #define ZYNQMP_IOU_SCNTR_COUNTER_CONTROL_REGISTER_EN 0x1
#define ZYNQMP_IOU_SCNTR_COUNTER_CONTROL_REGISTER_HDBG 0x2 #define ZYNQMP_IOU_SCNTR_COUNTER_CONTROL_REGISTER_HDBG 0x2
struct iou_scntr {
u32 counter_control_register;
u32 reserved0[7];
u32 base_frequency_id_register;
};
#define iou_scntr ((struct iou_scntr *)ZYNQMP_IOU_SCNTR)
struct iou_scntr_secure { struct iou_scntr_secure {
u32 counter_control_register; u32 counter_control_register;
u32 reserved0[7]; u32 reserved0[7];

6
board/xilinx/zynqmp/zynqmp.c
View File

@ -170,12 +170,6 @@ int board_early_init_r(void)
writel(ZYNQMP_IOU_SCNTR_COUNTER_CONTROL_REGISTER_EN, writel(ZYNQMP_IOU_SCNTR_COUNTER_CONTROL_REGISTER_EN,
&iou_scntr_secure->counter_control_register); &iou_scntr_secure->counter_control_register);
} }
/* Program freq register in System counter and enable system counter */
writel(gd->cpu_clk, &iou_scntr->base_frequency_id_register);
writel(ZYNQMP_IOU_SCNTR_COUNTER_CONTROL_REGISTER_HDBG |
ZYNQMP_IOU_SCNTR_COUNTER_CONTROL_REGISTER_EN,
&iou_scntr->counter_control_register);
return 0; return 0;
} }