diff options
| -rw-r--r-- | arch/arm/mach-zynq/include/mach/ps7_init_gpl.h | 28 | ||||
| -rw-r--r-- | arch/arm/mach-zynq/ps7_spl_init.c | 109 | ||||
| -rw-r--r-- | board/topic/zynq/Makefile | 2 | ||||
| -rw-r--r-- | board/topic/zynq/ps7_init_common.c | 117 | ||||
| -rw-r--r-- | board/topic/zynq/ps7_init_gpl.h | 34 | ||||
| -rw-r--r-- | board/topic/zynq/zynq-topic-miami/ps7_init_gpl.c | 2 | ||||
| -rw-r--r-- | board/topic/zynq/zynq-topic-miamilite/ps7_init_gpl.c | 2 | ||||
| -rw-r--r-- | board/topic/zynq/zynq-topic-miamiplus/ps7_init_gpl.c | 2 |
8 files changed, 140 insertions, 156 deletions
diff --git a/arch/arm/mach-zynq/include/mach/ps7_init_gpl.h b/arch/arm/mach-zynq/include/mach/ps7_init_gpl.h index 6e30108..c7c716e 100644 --- a/arch/arm/mach-zynq/include/mach/ps7_init_gpl.h +++ b/arch/arm/mach-zynq/include/mach/ps7_init_gpl.h @@ -1,5 +1,6 @@ /* - * (c) Copyright 2010-2017 Xilinx, Inc. All rights reserved. + * (c) Copyright 2010-2014 Xilinx, Inc. All rights reserved. + * (c) Copyright 2016 Topic Embedded Products. * * SPDX-License-Identifier: GPL-2.0+ */ @@ -7,8 +8,33 @@ #ifndef _ASM_ARCH_PS7_INIT_GPL_H #define _ASM_ARCH_PS7_INIT_GPL_H +/* Opcode exit is 0 all the time */ +#define OPCODE_EXIT 0U +#define OPCODE_MASKWRITE 0U +#define OPCODE_MASKPOLL 1U +#define OPCODE_MASKDELAY 2U +#define OPCODE_ADDRESS_MASK (~3U) + +/* Sentinel */ +#define EMIT_EXIT() OPCODE_EXIT +/* Opcode is in lower 2 bits of address, address is always 4-byte aligned */ +#define EMIT_MASKWRITE(addr, mask, val) OPCODE_MASKWRITE | addr, mask, val +#define EMIT_MASKPOLL(addr, mask) OPCODE_MASKPOLL | addr, mask +#define EMIT_MASKDELAY(addr, mask) OPCODE_MASKDELAY | addr, mask + +/* Returns codes of ps7_init* */ +#define PS7_INIT_SUCCESS (0) +#define PS7_INIT_CORRUPT (1) +#define PS7_INIT_TIMEOUT (2) +#define PS7_POLL_FAILED_DDR_INIT (3) +#define PS7_POLL_FAILED_DMA (4) +#define PS7_POLL_FAILED_PLL (5) + /* Called by spl.c */ int ps7_init(void); int ps7_post_config(void); +/* Defined in ps7_init_common.c */ +int ps7_config(unsigned long *ps7_config_init); + #endif /* _ASM_ARCH_PS7_INIT_GPL_H */ diff --git a/arch/arm/mach-zynq/ps7_spl_init.c b/arch/arm/mach-zynq/ps7_spl_init.c index 6adf852..1800995 100644 --- a/arch/arm/mach-zynq/ps7_spl_init.c +++ b/arch/arm/mach-zynq/ps7_spl_init.c @@ -1,5 +1,6 @@ /* * (c) Copyright 2010-2017 Xilinx, Inc. All rights reserved. + * (c) Copyright 2016 Topic Embedded Products. * * SPDX-License-Identifier: GPL-2.0+ */ @@ -25,3 +26,111 @@ __weak int ps7_post_config(void) */ return 0; } + +/* For delay calculation using global registers*/ +#define SCU_GLOBAL_TIMER_COUNT_L32 0xF8F00200 +#define SCU_GLOBAL_TIMER_COUNT_U32 0xF8F00204 +#define SCU_GLOBAL_TIMER_CONTROL 0xF8F00208 +#define SCU_GLOBAL_TIMER_AUTO_INC 0xF8F00218 +#define APU_FREQ 666666666 + +#define PS7_MASK_POLL_TIME 100000000 + +/* IO accessors. No memory barriers desired. */ +static inline void iowrite(unsigned long val, unsigned long addr) +{ + __raw_writel(val, addr); +} + +static inline unsigned long ioread(unsigned long addr) +{ + return __raw_readl(addr); +} + +/* start timer */ +static void perf_start_clock(void) +{ + iowrite((1 << 0) | /* Timer Enable */ + (1 << 3) | /* Auto-increment */ + (0 << 8), /* Pre-scale */ + SCU_GLOBAL_TIMER_CONTROL); +} + +/* Compute mask for given delay in miliseconds*/ +static int get_number_of_cycles_for_delay(unsigned int delay) +{ + return (APU_FREQ / (2 * 1000)) * delay; +} + +/* stop timer */ +static void perf_disable_clock(void) +{ + iowrite(0, SCU_GLOBAL_TIMER_CONTROL); +} + +/* stop timer and reset timer count regs */ +static void perf_reset_clock(void) +{ + perf_disable_clock(); + iowrite(0, SCU_GLOBAL_TIMER_COUNT_L32); + iowrite(0, SCU_GLOBAL_TIMER_COUNT_U32); +} + +static void perf_reset_and_start_timer(void) +{ + perf_reset_clock(); + perf_start_clock(); +} + +int __weak ps7_config(unsigned long *ps7_config_init) +{ + unsigned long *ptr = ps7_config_init; + unsigned long opcode; + unsigned long addr; + unsigned long val; + unsigned long mask; + unsigned int numargs; + int i; + int delay; + + for (;;) { + opcode = ptr[0]; + if (opcode == OPCODE_EXIT) + return PS7_INIT_SUCCESS; + addr = (opcode & OPCODE_ADDRESS_MASK); + + switch (opcode & ~OPCODE_ADDRESS_MASK) { + case OPCODE_MASKWRITE: + numargs = 3; + mask = ptr[1]; + val = ptr[2]; + iowrite((ioread(addr) & ~mask) | (val & mask), addr); + break; + + case OPCODE_MASKPOLL: + numargs = 2; + mask = ptr[1]; + i = 0; + while (!(ioread(addr) & mask)) { + if (i == PS7_MASK_POLL_TIME) + return PS7_INIT_TIMEOUT; + i++; + } + break; + + case OPCODE_MASKDELAY: + numargs = 2; + mask = ptr[1]; + delay = get_number_of_cycles_for_delay(mask); + perf_reset_and_start_timer(); + while (ioread(addr) < delay) + ; + break; + + default: + return PS7_INIT_CORRUPT; + } + + ptr += numargs; + } +} diff --git a/board/topic/zynq/Makefile b/board/topic/zynq/Makefile index eaf59cd..7893482 100644 --- a/board/topic/zynq/Makefile +++ b/board/topic/zynq/Makefile @@ -7,4 +7,4 @@ obj-y := board.o # Remove quotes hw-platform-y :=$(shell echo $(CONFIG_DEFAULT_DEVICE_TREE)) -obj-$(CONFIG_SPL_BUILD) += $(hw-platform-y)/ps7_init_gpl.o ps7_init_common.o +obj-$(CONFIG_SPL_BUILD) += $(hw-platform-y)/ps7_init_gpl.o diff --git a/board/topic/zynq/ps7_init_common.c b/board/topic/zynq/ps7_init_common.c deleted file mode 100644 index b1d45c2..0000000 --- a/board/topic/zynq/ps7_init_common.c +++ /dev/null @@ -1,117 +0,0 @@ -/* - * (c) Copyright 2010-2014 Xilinx, Inc. All rights reserved. - * (c) Copyright 2016 Topic Embedded Products. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include "ps7_init_gpl.h" -#include <asm/io.h> - -/* For delay calculation using global registers*/ -#define SCU_GLOBAL_TIMER_COUNT_L32 0xF8F00200 -#define SCU_GLOBAL_TIMER_COUNT_U32 0xF8F00204 -#define SCU_GLOBAL_TIMER_CONTROL 0xF8F00208 -#define SCU_GLOBAL_TIMER_AUTO_INC 0xF8F00218 -#define APU_FREQ 666666666 - -#define PS7_MASK_POLL_TIME 100000000 - -/* IO accessors. No memory barriers desired. */ -static inline void iowrite(unsigned long val, unsigned long addr) -{ - __raw_writel(val, addr); -} - -static inline unsigned long ioread(unsigned long addr) -{ - return __raw_readl(addr); -} - -/* start timer */ -static void perf_start_clock(void) -{ - iowrite((1 << 0) | /* Timer Enable */ - (1 << 3) | /* Auto-increment */ - (0 << 8), /* Pre-scale */ - SCU_GLOBAL_TIMER_CONTROL); -} - -/* Compute mask for given delay in miliseconds*/ -static int get_number_of_cycles_for_delay(unsigned int delay) -{ - return (APU_FREQ / (2 * 1000)) * delay; -} - -/* stop timer */ -static void perf_disable_clock(void) -{ - iowrite(0, SCU_GLOBAL_TIMER_CONTROL); -} - -/* stop timer and reset timer count regs */ -static void perf_reset_clock(void) -{ - perf_disable_clock(); - iowrite(0, SCU_GLOBAL_TIMER_COUNT_L32); - iowrite(0, SCU_GLOBAL_TIMER_COUNT_U32); -} - -static void perf_reset_and_start_timer(void) -{ - perf_reset_clock(); - perf_start_clock(); -} - -int ps7_config(unsigned long *ps7_config_init) -{ - unsigned long *ptr = ps7_config_init; - unsigned long opcode; - unsigned long addr; - unsigned long val; - unsigned long mask; - unsigned int numargs; - int i; - int delay; - - for (;;) { - opcode = ptr[0]; - if (opcode == OPCODE_EXIT) - return PS7_INIT_SUCCESS; - addr = (opcode & OPCODE_ADDRESS_MASK); - - switch (opcode & ~OPCODE_ADDRESS_MASK) { - case OPCODE_MASKWRITE: - numargs = 3; - mask = ptr[1]; - val = ptr[2]; - iowrite((ioread(addr) & ~mask) | (val & mask), addr); - break; - - case OPCODE_MASKPOLL: - numargs = 2; - mask = ptr[1]; - i = 0; - while (!(ioread(addr) & mask)) { - if (i == PS7_MASK_POLL_TIME) - return PS7_INIT_TIMEOUT; - i++; - } - break; - - case OPCODE_MASKDELAY: - numargs = 2; - mask = ptr[1]; - delay = get_number_of_cycles_for_delay(mask); - perf_reset_and_start_timer(); - while (ioread(addr) < delay) - ; - break; - - default: - return PS7_INIT_CORRUPT; - } - - ptr += numargs; - } -} diff --git a/board/topic/zynq/ps7_init_gpl.h b/board/topic/zynq/ps7_init_gpl.h deleted file mode 100644 index ef719ac..0000000 --- a/board/topic/zynq/ps7_init_gpl.h +++ /dev/null @@ -1,34 +0,0 @@ -/* - * (c) Copyright 2010-2014 Xilinx, Inc. All rights reserved. - * (c) Copyright 2016 Topic Embedded Products. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#define OPCODE_EXIT 0U -#define OPCODE_MASKWRITE 0U -#define OPCODE_MASKPOLL 1U -#define OPCODE_MASKDELAY 2U -#define OPCODE_ADDRESS_MASK (~3U) - -/* Sentinel */ -#define EMIT_EXIT() OPCODE_EXIT -/* Opcode is in lower 2 bits of address, address is always 4-byte aligned */ -#define EMIT_MASKWRITE(addr, mask, val) OPCODE_MASKWRITE | addr, mask, val -#define EMIT_MASKPOLL(addr, mask) OPCODE_MASKPOLL | addr, mask -#define EMIT_MASKDELAY(addr, mask) OPCODE_MASKDELAY | addr, mask - -/* Returns codes of ps7_init* */ -#define PS7_INIT_SUCCESS (0) -#define PS7_INIT_CORRUPT (1) -#define PS7_INIT_TIMEOUT (2) -#define PS7_POLL_FAILED_DDR_INIT (3) -#define PS7_POLL_FAILED_DMA (4) -#define PS7_POLL_FAILED_PLL (5) - -/* Called by spl.c */ -int ps7_init(void); -int ps7_post_config(void); - -/* Defined in ps7_init_common.c */ -int ps7_config(unsigned long *ps7_config_init); diff --git a/board/topic/zynq/zynq-topic-miami/ps7_init_gpl.c b/board/topic/zynq/zynq-topic-miami/ps7_init_gpl.c index b195d7a..ceed043 100644 --- a/board/topic/zynq/zynq-topic-miami/ps7_init_gpl.c +++ b/board/topic/zynq/zynq-topic-miami/ps7_init_gpl.c @@ -5,7 +5,7 @@ * SPDX-License-Identifier: GPL-2.0+ */ -#include "../ps7_init_gpl.h" +#include <asm/arch/ps7_init_gpl.h> static unsigned long ps7_pll_init_data_3_0[] = { EMIT_MASKWRITE(0XF8000008, 0x0000FFFFU, 0x0000DF0DU), diff --git a/board/topic/zynq/zynq-topic-miamilite/ps7_init_gpl.c b/board/topic/zynq/zynq-topic-miamilite/ps7_init_gpl.c index ec0cc7d..1205d19 100644 --- a/board/topic/zynq/zynq-topic-miamilite/ps7_init_gpl.c +++ b/board/topic/zynq/zynq-topic-miamilite/ps7_init_gpl.c @@ -5,7 +5,7 @@ * SPDX-License-Identifier: GPL-2.0+ */ -#include "../ps7_init_gpl.h" +#include <asm/arch/ps7_init_gpl.h> static unsigned long ps7_pll_init_data_3_0[] = { EMIT_MASKWRITE(0xF8000008, 0x0000FFFFU, 0x0000DF0DU), diff --git a/board/topic/zynq/zynq-topic-miamiplus/ps7_init_gpl.c b/board/topic/zynq/zynq-topic-miamiplus/ps7_init_gpl.c index 5a92336..f42632b 100644 --- a/board/topic/zynq/zynq-topic-miamiplus/ps7_init_gpl.c +++ b/board/topic/zynq/zynq-topic-miamiplus/ps7_init_gpl.c @@ -5,7 +5,7 @@ * SPDX-License-Identifier: GPL-2.0+ */ -#include "../ps7_init_gpl.h" +#include <asm/arch/ps7_init_gpl.h> static unsigned long ps7_pll_init_data_3_0[] = { EMIT_MASKWRITE(0XF8000008, 0x0000FFFFU, 0x0000DF0DU), |