diff options
Diffstat (limited to 'arch/arm/mach-lpc32xx')
| -rw-r--r-- | arch/arm/mach-lpc32xx/Kconfig | 11 | ||||
| -rw-r--r-- | arch/arm/mach-lpc32xx/common.c | 24 | ||||
| -rw-r--r-- | arch/arm/mach-lpc32xx/common.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-lpc32xx/include/mach/board.h | 15 | ||||
| -rw-r--r-- | arch/arm/mach-lpc32xx/include/mach/entry-macro.S | 28 | ||||
| -rw-r--r-- | arch/arm/mach-lpc32xx/include/mach/hardware.h | 25 | ||||
| -rw-r--r-- | arch/arm/mach-lpc32xx/include/mach/uncompress.h | 50 | ||||
| -rw-r--r-- | arch/arm/mach-lpc32xx/lpc32xx.h (renamed from arch/arm/mach-lpc32xx/include/mach/platform.h) | 18 | ||||
| -rw-r--r-- | arch/arm/mach-lpc32xx/pm.c | 3 | ||||
| -rw-r--r-- | arch/arm/mach-lpc32xx/serial.c | 33 | ||||
| -rw-r--r-- | arch/arm/mach-lpc32xx/suspend.S | 3 |
11 files changed, 80 insertions, 131 deletions
diff --git a/arch/arm/mach-lpc32xx/Kconfig b/arch/arm/mach-lpc32xx/Kconfig new file mode 100644 index 000000000000..ec87c65f4536 --- /dev/null +++ b/arch/arm/mach-lpc32xx/Kconfig @@ -0,0 +1,11 @@ +# SPDX-License-Identifier: GPL-2.0-only + +config ARCH_LPC32XX + bool "NXP LPC32XX" + depends on ARCH_MULTI_V5 + select ARM_AMBA + select CLKSRC_LPC32XX + select CPU_ARM926T + select GPIOLIB + help + Support for the NXP LPC32XX family of processors diff --git a/arch/arm/mach-lpc32xx/common.c b/arch/arm/mach-lpc32xx/common.c index 5b71b4fab2cd..304ea61a0716 100644 --- a/arch/arm/mach-lpc32xx/common.c +++ b/arch/arm/mach-lpc32xx/common.c @@ -8,12 +8,12 @@ */ #include <linux/init.h> +#include <linux/soc/nxp/lpc32xx-misc.h> #include <asm/mach/map.h> #include <asm/system_info.h> -#include <mach/hardware.h> -#include <mach/platform.h> +#include "lpc32xx.h" #include "common.h" /* @@ -32,7 +32,7 @@ void lpc32xx_get_uid(u32 devid[4]) */ #define LPC32XX_IRAM_BANK_SIZE SZ_128K static u32 iram_size; -u32 lpc32xx_return_iram_size(void) +u32 lpc32xx_return_iram(void __iomem **mapbase, dma_addr_t *dmaaddr) { if (iram_size == 0) { u32 savedval1, savedval2; @@ -53,10 +53,26 @@ u32 lpc32xx_return_iram_size(void) } else iram_size = LPC32XX_IRAM_BANK_SIZE * 2; } + if (dmaaddr) + *dmaaddr = LPC32XX_IRAM_BASE; + if (mapbase) + *mapbase = io_p2v(LPC32XX_IRAM_BASE); return iram_size; } -EXPORT_SYMBOL_GPL(lpc32xx_return_iram_size); +EXPORT_SYMBOL_GPL(lpc32xx_return_iram); + +void lpc32xx_set_phy_interface_mode(phy_interface_t mode) +{ + u32 tmp = __raw_readl(LPC32XX_CLKPWR_MACCLK_CTRL); + tmp &= ~LPC32XX_CLKPWR_MACCTRL_PINS_MSK; + if (mode == PHY_INTERFACE_MODE_MII) + tmp |= LPC32XX_CLKPWR_MACCTRL_USE_MII_PINS; + else + tmp |= LPC32XX_CLKPWR_MACCTRL_USE_RMII_PINS; + __raw_writel(tmp, LPC32XX_CLKPWR_MACCLK_CTRL); +} +EXPORT_SYMBOL_GPL(lpc32xx_set_phy_interface_mode); static struct map_desc lpc32xx_io_desc[] __initdata = { { diff --git a/arch/arm/mach-lpc32xx/common.h b/arch/arm/mach-lpc32xx/common.h index 8e597ce48a73..32f0ad217807 100644 --- a/arch/arm/mach-lpc32xx/common.h +++ b/arch/arm/mach-lpc32xx/common.h @@ -23,7 +23,6 @@ extern void __init lpc32xx_serial_init(void); */ extern void lpc32xx_get_uid(u32 devid[4]); -extern u32 lpc32xx_return_iram_size(void); /* * Pointers used for sizing and copying suspend function data */ diff --git a/arch/arm/mach-lpc32xx/include/mach/board.h b/arch/arm/mach-lpc32xx/include/mach/board.h deleted file mode 100644 index 476513d970a4..000000000000 --- a/arch/arm/mach-lpc32xx/include/mach/board.h +++ /dev/null @@ -1,15 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* - * arm/arch/mach-lpc32xx/include/mach/board.h - * - * Author: Kevin Wells <kevin.wells@nxp.com> - * - * Copyright (C) 2010 NXP Semiconductors - */ - -#ifndef __ASM_ARCH_BOARD_H -#define __ASM_ARCH_BOARD_H - -extern u32 lpc32xx_return_iram_size(void); - -#endif /* __ASM_ARCH_BOARD_H */ diff --git a/arch/arm/mach-lpc32xx/include/mach/entry-macro.S b/arch/arm/mach-lpc32xx/include/mach/entry-macro.S deleted file mode 100644 index eec0f5f7e722..000000000000 --- a/arch/arm/mach-lpc32xx/include/mach/entry-macro.S +++ /dev/null @@ -1,28 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* - * arch/arm/mach-lpc32xx/include/mach/entry-macro.S - * - * Author: Kevin Wells <kevin.wells@nxp.com> - * - * Copyright (C) 2010 NXP Semiconductors - */ - -#include <mach/hardware.h> -#include <mach/platform.h> - -#define LPC32XX_INTC_MASKED_STATUS_OFS 0x8 - - .macro get_irqnr_preamble, base, tmp - ldr \base, =IO_ADDRESS(LPC32XX_MIC_BASE) - .endm - -/* - * Return IRQ number in irqnr. Also return processor Z flag status in CPSR - * as set if an interrupt is pending. - */ - .macro get_irqnr_and_base, irqnr, irqstat, base, tmp - ldr \irqstat, [\base, #LPC32XX_INTC_MASKED_STATUS_OFS] - clz \irqnr, \irqstat - rsb \irqnr, \irqnr, #31 - teq \irqstat, #0 - .endm diff --git a/arch/arm/mach-lpc32xx/include/mach/hardware.h b/arch/arm/mach-lpc32xx/include/mach/hardware.h deleted file mode 100644 index 4866f096ffce..000000000000 --- a/arch/arm/mach-lpc32xx/include/mach/hardware.h +++ /dev/null @@ -1,25 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* - * arch/arm/mach-lpc32xx/include/mach/hardware.h - * - * Copyright (c) 2005 MontaVista Software, Inc. <source@mvista.com> - */ - -#ifndef __ASM_ARCH_HARDWARE_H -#define __ASM_ARCH_HARDWARE_H - -/* - * Start of virtual addresses for IO devices - */ -#define IO_BASE 0xF0000000 - -/* - * This macro relies on fact that for all HW i/o addresses bits 20-23 are 0 - */ -#define IO_ADDRESS(x) IOMEM(((((x) & 0xff000000) >> 4) | ((x) & 0xfffff)) |\ - IO_BASE) - -#define io_p2v(x) ((void __iomem *) (unsigned long) IO_ADDRESS(x)) -#define io_v2p(x) ((((x) & 0x0ff00000) << 4) | ((x) & 0x000fffff)) - -#endif diff --git a/arch/arm/mach-lpc32xx/include/mach/uncompress.h b/arch/arm/mach-lpc32xx/include/mach/uncompress.h deleted file mode 100644 index a568812a0b91..000000000000 --- a/arch/arm/mach-lpc32xx/include/mach/uncompress.h +++ /dev/null @@ -1,50 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* - * arch/arm/mach-lpc32xx/include/mach/uncompress.h - * - * Author: Kevin Wells <kevin.wells@nxp.com> - * - * Copyright (C) 2010 NXP Semiconductors - */ - -#ifndef __ASM_ARM_ARCH_UNCOMPRESS_H -#define __ASM_ARM_ARCH_UNCOMPRESS_H - -#include <linux/io.h> - -#include <mach/hardware.h> -#include <mach/platform.h> - -/* - * Uncompress output is hardcoded to standard UART 5 - */ - -#define UART_FIFO_CTL_TX_RESET (1 << 2) -#define UART_STATUS_TX_MT (1 << 6) - -#define _UARTREG(x) (void __iomem *)(LPC32XX_UART5_BASE + (x)) - -#define LPC32XX_UART_DLLFIFO_O 0x00 -#define LPC32XX_UART_IIRFCR_O 0x08 -#define LPC32XX_UART_LSR_O 0x14 - -static inline void putc(int ch) -{ - /* Wait for transmit FIFO to empty */ - while ((__raw_readl(_UARTREG(LPC32XX_UART_LSR_O)) & - UART_STATUS_TX_MT) == 0) - ; - - __raw_writel((u32) ch, _UARTREG(LPC32XX_UART_DLLFIFO_O)); -} - -static inline void flush(void) -{ - __raw_writel(__raw_readl(_UARTREG(LPC32XX_UART_IIRFCR_O)) | - UART_FIFO_CTL_TX_RESET, _UARTREG(LPC32XX_UART_IIRFCR_O)); -} - -/* NULL functions; we don't presently need them */ -#define arch_decomp_setup() - -#endif diff --git a/arch/arm/mach-lpc32xx/include/mach/platform.h b/arch/arm/mach-lpc32xx/lpc32xx.h index 1c53790444fc..5eeb884a1993 100644 --- a/arch/arm/mach-lpc32xx/include/mach/platform.h +++ b/arch/arm/mach-lpc32xx/lpc32xx.h @@ -7,8 +7,8 @@ * Copyright (C) 2010 NXP Semiconductors */ -#ifndef __ASM_ARCH_PLATFORM_H -#define __ASM_ARCH_PLATFORM_H +#ifndef __ARM_LPC32XX_H +#define __ARM_LPC32XX_H #define _SBF(f, v) ((v) << (f)) #define _BIT(n) _SBF(n, 1) @@ -700,4 +700,18 @@ #define LPC32XX_USB_OTG_DEV_CLOCK_ON _BIT(1) #define LPC32XX_USB_OTG_HOST_CLOCK_ON _BIT(0) +/* + * Start of virtual addresses for IO devices + */ +#define IO_BASE 0xF0000000 + +/* + * This macro relies on fact that for all HW i/o addresses bits 20-23 are 0 + */ +#define IO_ADDRESS(x) IOMEM(((((x) & 0xff000000) >> 4) | ((x) & 0xfffff)) |\ + IO_BASE) + +#define io_p2v(x) ((void __iomem *) (unsigned long) IO_ADDRESS(x)) +#define io_v2p(x) ((((x) & 0x0ff00000) << 4) | ((x) & 0x000fffff)) + #endif diff --git a/arch/arm/mach-lpc32xx/pm.c b/arch/arm/mach-lpc32xx/pm.c index 32bca351a73b..b27fa1b9f56c 100644 --- a/arch/arm/mach-lpc32xx/pm.c +++ b/arch/arm/mach-lpc32xx/pm.c @@ -70,8 +70,7 @@ #include <asm/cacheflush.h> -#include <mach/hardware.h> -#include <mach/platform.h> +#include "lpc32xx.h" #include "common.h" #define TEMP_IRAM_AREA IO_ADDRESS(LPC32XX_IRAM_BASE) diff --git a/arch/arm/mach-lpc32xx/serial.c b/arch/arm/mach-lpc32xx/serial.c index 3f9b30df9f0e..3e765c4bf986 100644 --- a/arch/arm/mach-lpc32xx/serial.c +++ b/arch/arm/mach-lpc32xx/serial.c @@ -16,8 +16,7 @@ #include <linux/clk.h> #include <linux/io.h> -#include <mach/hardware.h> -#include <mach/platform.h> +#include "lpc32xx.h" #include "common.h" #define LPC32XX_SUART_FIFO_SIZE 64 @@ -60,6 +59,36 @@ static struct uartinit uartinit_data[] __initdata = { }, }; +/* LPC3250 Errata HSUART.1: Hang workaround via loopback mode on inactivity */ +void lpc32xx_loopback_set(resource_size_t mapbase, int state) +{ + int bit; + u32 tmp; + + switch (mapbase) { + case LPC32XX_HS_UART1_BASE: + bit = 0; + break; + case LPC32XX_HS_UART2_BASE: + bit = 1; + break; + case LPC32XX_HS_UART7_BASE: + bit = 6; + break; + default: + WARN(1, "lpc32xx_hs: Warning: Unknown port at %08x\n", mapbase); + return; + } + + tmp = readl(LPC32XX_UARTCTL_CLOOP); + if (state) + tmp |= (1 << bit); + else + tmp &= ~(1 << bit); + writel(tmp, LPC32XX_UARTCTL_CLOOP); +} +EXPORT_SYMBOL_GPL(lpc32xx_loopback_set); + void __init lpc32xx_serial_init(void) { u32 tmp, clkmodes = 0; diff --git a/arch/arm/mach-lpc32xx/suspend.S b/arch/arm/mach-lpc32xx/suspend.S index 374f9f07fe48..3f0a8282ef6f 100644 --- a/arch/arm/mach-lpc32xx/suspend.S +++ b/arch/arm/mach-lpc32xx/suspend.S @@ -11,8 +11,7 @@ */ #include <linux/linkage.h> #include <asm/assembler.h> -#include <mach/platform.h> -#include <mach/hardware.h> +#include "lpc32xx.h" /* Using named register defines makes the code easier to follow */ #define WORK1_REG r0 |