diff options
| author | jmcneill <jmcneill@NetBSD.org> | 2022-10-31 22:23:38 +0000 |
|---|---|---|
| committer | jmcneill <jmcneill@NetBSD.org> | 2022-10-31 22:23:38 +0000 |
| commit | 5cc4e6896a41dcff742f6896e04b6c3d88a5f604 (patch) | |
| tree | dd17c8584da6fc652ae844503597750bcb7dbe20 /sys | |
| parent | 89356838a7e6aa911769d2527fbeff133d6135ac (diff) | |
Implement zynq_platform_reset()
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/arch/arm/xilinx/zynq_platform.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/sys/arch/arm/xilinx/zynq_platform.c b/sys/arch/arm/xilinx/zynq_platform.c index 53e5b6f6d7d..c1fd44a8d12 100644 --- a/sys/arch/arm/xilinx/zynq_platform.c +++ b/sys/arch/arm/xilinx/zynq_platform.c @@ -1,4 +1,4 @@ -/* $NetBSD: zynq_platform.c,v 1.9 2022/10/28 20:37:03 jmcneill Exp $ */ +/* $NetBSD: zynq_platform.c,v 1.10 2022/10/31 22:23:38 jmcneill Exp $ */ /*- * Copyright (c) 2019 The NetBSD Foundation, Inc. @@ -35,7 +35,7 @@ #include "arml2cc.h" #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: zynq_platform.c,v 1.9 2022/10/28 20:37:03 jmcneill Exp $"); +__KERNEL_RCSID(0, "$NetBSD: zynq_platform.c,v 1.10 2022/10/31 22:23:38 jmcneill Exp $"); #include <sys/param.h> #include <sys/bus.h> @@ -69,7 +69,11 @@ __KERNEL_RCSID(0, "$NetBSD: zynq_platform.c,v 1.9 2022/10/28 20:37:03 jmcneill E #define ZYNQ_IOREG_PBASE 0xe0000000 #define ZYNQ_IOREG_SIZE 0x00200000 -#define ZYNQ_GPV_VBASE (ZYNQ_IOREG_VBASE + ZYNQ_IOREG_SIZE) +#define ZYNQ_SLCR_VBASE (ZYNQ_IOREG_VBASE + ZYNQ_IOREG_SIZE) +#define ZYNQ_SLCR_PBASE 0xf8000000 +#define ZYNQ_SLCR_SIZE 0x00100000 + +#define ZYNQ_GPV_VBASE (ZYNQ_SLCR_VBASE + ZYNQ_SLCR_SIZE) #define ZYNQ_GPV_PBASE 0xf8900000 #define ZYNQ_GPV_SIZE 0x00100000 @@ -87,6 +91,12 @@ __KERNEL_RCSID(0, "$NetBSD: zynq_platform.c,v 1.9 2022/10/28 20:37:03 jmcneill E #define ZYNQ7000_CPU1_ENTRY 0xfffffff0 #define ZYNQ7000_CPU1_ENTRY_SZ 4 +/* SLCR registers */ +#define SLCR_UNLOCK 0x008 +#define UNLOCK_KEY 0xdf0d +#define PSS_RST_CTRL 0x200 +#define SOFT_RST __BIT(0) + extern struct bus_space arm_generic_bs_tag; extern struct arm32_bus_dma_tag arm_generic_dma_tag; @@ -99,6 +109,9 @@ zynq_platform_devmap(void) DEVMAP_ENTRY(ZYNQ_IOREG_VBASE, ZYNQ_IOREG_PBASE, ZYNQ_IOREG_SIZE), + DEVMAP_ENTRY(ZYNQ_SLCR_VBASE, + ZYNQ_SLCR_PBASE, + ZYNQ_SLCR_SIZE), DEVMAP_ENTRY(ZYNQ_GPV_VBASE, ZYNQ_GPV_PBASE, ZYNQ_GPV_SIZE), @@ -232,7 +245,11 @@ zynq_platform_bootstrap(void) static void zynq_platform_reset(void) { + bus_space_tag_t bst = &arm_generic_bs_tag; + bus_space_handle_t bsh = ZYNQ_SLCR_VBASE; + bus_space_write_4(bst, bsh, SLCR_UNLOCK, UNLOCK_KEY); + bus_space_write_4(bst, bsh, PSS_RST_CTRL, SOFT_RST); } static const struct arm_platform zynq_platform = { |
