From 7036440eab3e2d47a775d4616909f8235488d714 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 30 May 2022 14:46:17 +0200 Subject: ARM: omap1: enable multiplatform With all the header files out of the way, and the clock driver converted to the common framework, nothing stops us from building OMAP together with the other platforms. As usual, the decompressor support is a victim here, and is only available when CONFIG_DEBUG_LL is configured for the particular board. Acked-by: Tony Lindgren Signed-off-by: Arnd Bergmann --- arch/arm/Kconfig | 13 --- arch/arm/configs/omap1_defconfig | 3 + arch/arm/mach-omap1/Kconfig | 16 ++++ arch/arm/mach-omap1/hardware.h | 2 +- arch/arm/mach-omap1/include/mach/serial.h | 48 ----------- arch/arm/mach-omap1/include/mach/uncompress.h | 117 -------------------------- arch/arm/mach-omap1/serial.c | 3 +- arch/arm/mach-omap1/serial.h | 48 +++++++++++ 8 files changed, 69 insertions(+), 181 deletions(-) delete mode 100644 arch/arm/mach-omap1/include/mach/serial.h delete mode 100644 arch/arm/mach-omap1/include/mach/uncompress.h create mode 100644 arch/arm/mach-omap1/serial.h (limited to 'arch/arm') diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index f182f32145a8..7630ba9cb6cc 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -396,19 +396,6 @@ config ARCH_SA1100 help Support for StrongARM 11x0 based boards. -config ARCH_OMAP1 - bool "TI OMAP1" - depends on CPU_LITTLE_ENDIAN - select CLKSRC_MMIO - select FORCE_PCI if PCCARD - select GENERIC_IRQ_CHIP - select GPIOLIB - select HAVE_LEGACY_CLK - select IRQ_DOMAIN - select SPARSE_IRQ - help - Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx) - endchoice menu "Multiple platform selection" diff --git a/arch/arm/configs/omap1_defconfig b/arch/arm/configs/omap1_defconfig index 3148567b66b6..14c17a218ec5 100644 --- a/arch/arm/configs/omap1_defconfig +++ b/arch/arm/configs/omap1_defconfig @@ -17,6 +17,9 @@ CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODULE_FORCE_UNLOAD=y # CONFIG_BLK_DEV_BSG is not set +CONFIG_ARCH_MULTI_V4T=y +CONFIG_ARCH_MULTI_V5=y +# CONFIG_ARCH_MULTI_V7 is not set CONFIG_ARCH_OMAP=y CONFIG_ARCH_OMAP1=y CONFIG_OMAP_RESET_CLOCKS=y diff --git a/arch/arm/mach-omap1/Kconfig b/arch/arm/mach-omap1/Kconfig index d4b0cd91a4f9..0ac0567f721d 100644 --- a/arch/arm/mach-omap1/Kconfig +++ b/arch/arm/mach-omap1/Kconfig @@ -1,4 +1,16 @@ # SPDX-License-Identifier: GPL-2.0-only +menuconfig ARCH_OMAP1 + bool "TI OMAP1" + depends on ARCH_MULTI_V4T || ARCH_MULTI_V5 + depends on CPU_LITTLE_ENDIAN + select ARCH_HAS_HOLES_MEMORYMODEL + select ARCH_OMAP + select CLKSRC_MMIO + select FORCE_PCI if PCCARD + select GPIOLIB + help + Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx) + if ARCH_OMAP1 menu "TI OMAP1 specific features" @@ -6,23 +18,27 @@ menu "TI OMAP1 specific features" comment "OMAP Core Type" config ARCH_OMAP730 + depends on ARCH_MULTI_V5 bool "OMAP730 Based System" select ARCH_OMAP_OTG select CPU_ARM926T select OMAP_MPU_TIMER config ARCH_OMAP850 + depends on ARCH_MULTI_V5 bool "OMAP850 Based System" select ARCH_OMAP_OTG select CPU_ARM926T config ARCH_OMAP15XX + depends on ARCH_MULTI_V4T default y bool "OMAP15xx Based System" select CPU_ARM925T select OMAP_MPU_TIMER config ARCH_OMAP16XX + depends on ARCH_MULTI_V5 bool "OMAP16xx Based System" select ARCH_OMAP_OTG select CPU_ARM926T diff --git a/arch/arm/mach-omap1/hardware.h b/arch/arm/mach-omap1/hardware.h index 738becbd2972..c228234a1ed4 100644 --- a/arch/arm/mach-omap1/hardware.h +++ b/arch/arm/mach-omap1/hardware.h @@ -64,7 +64,7 @@ static inline u32 omap_cs3_phys(void) #define OMAP1_IO_OFFSET 0x00f00000 /* Virtual IO = 0xff0b0000 */ #define OMAP1_IO_ADDRESS(pa) IOMEM((pa) - OMAP1_IO_OFFSET) -#include +#include "serial.h" /* * --------------------------------------------------------------------------- diff --git a/arch/arm/mach-omap1/include/mach/serial.h b/arch/arm/mach-omap1/include/mach/serial.h deleted file mode 100644 index 4700e384c3d9..000000000000 --- a/arch/arm/mach-omap1/include/mach/serial.h +++ /dev/null @@ -1,48 +0,0 @@ -/* - * Copyright (C) 2009 Texas Instruments - * Added OMAP4 support- Santosh Shilimkar - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#ifndef __ASM_ARCH_SERIAL_H -#define __ASM_ARCH_SERIAL_H - -#include - -/* - * Memory entry used for the DEBUG_LL UART configuration, relative to - * start of RAM. See also uncompress.h and debug-macro.S. - * - * Note that using a memory location for storing the UART configuration - * has at least two limitations: - * - * 1. Kernel uncompress code cannot overlap OMAP_UART_INFO as the - * uncompress code could then partially overwrite itself - * 2. We assume printascii is called at least once before paging_init, - * and addruart has a chance to read OMAP_UART_INFO - */ -#define OMAP_UART_INFO_OFS 0x3ffc - -#define OMAP_PORT_SHIFT 2 -#define OMAP7XX_PORT_SHIFT 0 - -#define OMAP1510_BASE_BAUD (12000000/16) -#define OMAP16XX_BASE_BAUD (48000000/16) - -/* - * DEBUG_LL port encoding stored into the UART1 scratchpad register by - * decomp_setup in uncompress.h - */ -#define OMAP1UART1 11 -#define OMAP1UART2 12 -#define OMAP1UART3 13 - -#ifndef __ASSEMBLER__ -extern void omap_serial_init(void); -#endif - -#endif diff --git a/arch/arm/mach-omap1/include/mach/uncompress.h b/arch/arm/mach-omap1/include/mach/uncompress.h deleted file mode 100644 index 9cca6a56788f..000000000000 --- a/arch/arm/mach-omap1/include/mach/uncompress.h +++ /dev/null @@ -1,117 +0,0 @@ -/* - * arch/arm/plat-omap/include/mach/uncompress.h - * - * Serial port stubs for kernel decompress status messages - * - * Initially based on: - * linux-2.4.15-rmk1-dsplinux1.6/arch/arm/plat-omap/include/mach1510/uncompress.h - * Copyright (C) 2000 RidgeRun, Inc. - * Author: Greg Lonnon - * - * Rewritten by: - * Author: - * 2004 (c) MontaVista Software, Inc. - * - * This file is licensed under the terms of the GNU General Public License - * version 2. This program is licensed "as is" without any warranty of any - * kind, whether express or implied. - */ - -#include -#include - -#include -#include - -#include "serial.h" - -#define MDR1_MODE_MASK 0x07 - -volatile u8 *uart_base; -int uart_shift; - -/* - * Store the DEBUG_LL uart number into memory. - * See also debug-macro.S, and serial.c for related code. - */ -static void set_omap_uart_info(unsigned char port) -{ - /* - * Get address of some.bss variable and round it down - * a la CONFIG_AUTO_ZRELADDR. - */ - u32 ram_start = (u32)&uart_shift & 0xf8000000; - u32 *uart_info = (u32 *)(ram_start + OMAP_UART_INFO_OFS); - *uart_info = port; -} - -static inline void putc(int c) -{ - if (!uart_base) - return; - - /* Check for UART 16x mode */ - if ((uart_base[UART_OMAP_MDR1 << uart_shift] & MDR1_MODE_MASK) != 0) - return; - - while (!(uart_base[UART_LSR << uart_shift] & UART_LSR_THRE)) - barrier(); - uart_base[UART_TX << uart_shift] = c; -} - -static inline void flush(void) -{ -} - -/* - * Macros to configure UART1 and debug UART - */ -#define _DEBUG_LL_ENTRY(mach, dbg_uart, dbg_shft, dbg_id) \ - if (machine_is_##mach()) { \ - uart_base = (volatile u8 *)(dbg_uart); \ - uart_shift = (dbg_shft); \ - port = (dbg_id); \ - set_omap_uart_info(port); \ - break; \ - } - -#define DEBUG_LL_OMAP7XX(p, mach) \ - _DEBUG_LL_ENTRY(mach, OMAP1_UART##p##_BASE, OMAP7XX_PORT_SHIFT, \ - OMAP1UART##p) - -#define DEBUG_LL_OMAP1(p, mach) \ - _DEBUG_LL_ENTRY(mach, OMAP1_UART##p##_BASE, OMAP_PORT_SHIFT, \ - OMAP1UART##p) - -static inline void arch_decomp_setup(void) -{ - int port = 0; - - /* - * Initialize the port based on the machine ID from the bootloader. - * Note that we're using macros here instead of switch statement - * as machine_is functions are optimized out for the boards that - * are not selected. - */ - do { - /* omap7xx/8xx based boards using UART1 with shift 0 */ - DEBUG_LL_OMAP7XX(1, herald); - DEBUG_LL_OMAP7XX(1, omap_perseus2); - - /* omap15xx/16xx based boards using UART1 */ - DEBUG_LL_OMAP1(1, ams_delta); - DEBUG_LL_OMAP1(1, nokia770); - DEBUG_LL_OMAP1(1, omap_h2); - DEBUG_LL_OMAP1(1, omap_h3); - DEBUG_LL_OMAP1(1, omap_innovator); - DEBUG_LL_OMAP1(1, omap_osk); - DEBUG_LL_OMAP1(1, omap_palmte); - DEBUG_LL_OMAP1(1, omap_palmz71); - - /* omap15xx/16xx based boards using UART2 */ - DEBUG_LL_OMAP1(2, omap_palmtt); - - /* omap15xx/16xx based boards using UART3 */ - DEBUG_LL_OMAP1(3, sx1); - } while (0); -} diff --git a/arch/arm/mach-omap1/serial.c b/arch/arm/mach-omap1/serial.c index 299ae1106187..88928fc33b2e 100644 --- a/arch/arm/mach-omap1/serial.c +++ b/arch/arm/mach-omap1/serial.c @@ -19,8 +19,7 @@ #include -#include - +#include "serial.h" #include "mux.h" #include "pm.h" #include "soc.h" diff --git a/arch/arm/mach-omap1/serial.h b/arch/arm/mach-omap1/serial.h new file mode 100644 index 000000000000..4700e384c3d9 --- /dev/null +++ b/arch/arm/mach-omap1/serial.h @@ -0,0 +1,48 @@ +/* + * Copyright (C) 2009 Texas Instruments + * Added OMAP4 support- Santosh Shilimkar + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __ASM_ARCH_SERIAL_H +#define __ASM_ARCH_SERIAL_H + +#include + +/* + * Memory entry used for the DEBUG_LL UART configuration, relative to + * start of RAM. See also uncompress.h and debug-macro.S. + * + * Note that using a memory location for storing the UART configuration + * has at least two limitations: + * + * 1. Kernel uncompress code cannot overlap OMAP_UART_INFO as the + * uncompress code could then partially overwrite itself + * 2. We assume printascii is called at least once before paging_init, + * and addruart has a chance to read OMAP_UART_INFO + */ +#define OMAP_UART_INFO_OFS 0x3ffc + +#define OMAP_PORT_SHIFT 2 +#define OMAP7XX_PORT_SHIFT 0 + +#define OMAP1510_BASE_BAUD (12000000/16) +#define OMAP16XX_BASE_BAUD (48000000/16) + +/* + * DEBUG_LL port encoding stored into the UART1 scratchpad register by + * decomp_setup in uncompress.h + */ +#define OMAP1UART1 11 +#define OMAP1UART2 12 +#define OMAP1UART3 13 + +#ifndef __ASSEMBLER__ +extern void omap_serial_init(void); +#endif + +#endif -- cgit v1.2.3