[PATCH 22/22] ARM: omap1: enable multiplatform

From: Arnd Bergmann
Date: Thu Aug 08 2019 - 17:48:56 EST

With all the header files out of the way, and the clock driver
converted to drivers/clk/, 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.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
arch/arm/Kconfig | 18 ---
arch/arm/configs/omap1_defconfig | 3 +
arch/arm/mach-omap1/Kconfig | 20 ++-
arch/arm/mach-omap1/Makefile | 4 +
arch/arm/mach-omap1/hardware.h | 2 +-
arch/arm/mach-omap1/include/mach/uncompress.h | 117 ------------------
arch/arm/mach-omap1/serial.c | 3 +-
.../mach-omap1/{include/mach => }/serial.h | 0
arch/arm/plat-omap/Makefile | 1 +
9 files changed, 26 insertions(+), 142 deletions(-)
delete mode 100644 arch/arm/mach-omap1/include/mach/uncompress.h
rename arch/arm/mach-omap1/{include/mach => }/serial.h (100%)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 17a21f75f386..8542dfc5cf84 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -490,24 +490,6 @@ config ARCH_S3C24XX
(<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
Samsung SMDK2410 development board (and derivatives).

-config ARCH_OMAP1
- bool "TI OMAP1"
- select ARCH_HAS_HOLES_MEMORYMODEL
- select ARCH_OMAP
- select CLKDEV_LOOKUP
- select CLKSRC_MMIO
- select COMMON_CLK
- select FORCE_PCI if PCCARD
- select GENERIC_CLOCKEVENTS
- select GENERIC_IRQ_CHIP
- select GENERIC_IRQ_MULTI_HANDLER
- select GPIOLIB
- select HAVE_IDE
- 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 0c43c589f191..902125f89315 100644
--- a/arch/arm/configs/omap1_defconfig
+++ b/arch/arm/configs/omap1_defconfig
@@ -20,6 +20,9 @@ CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ 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 6a2c441ab579..5b1d3a24462f 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
+ select ARCH_HAS_HOLES_MEMORYMODEL
+ select ARCH_OMAP
+ select CLKSRC_MMIO
+ select FORCE_PCI if PCCARD
+ select GPIOLIB
+ select HAVE_IDE
+ help
+ Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
+
if ARCH_OMAP1

menu "TI OMAP1 specific features"
@@ -14,27 +26,27 @@ config ARCH_OMAP1_AUTO
select MACH_OMAP_GENERIC if (ARCH_OMAP15XX || ARCH_OMAP16XX)

config ARCH_OMAP730
- depends on ARCH_OMAP1
+ 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_OMAP1
+ depends on ARCH_MULTI_V5
bool "OMAP850 Based System"
select ARCH_OMAP_OTG
select CPU_ARM926T

config ARCH_OMAP15XX
- depends on ARCH_OMAP1
+ depends on ARCH_MULTI_V4T
default y
bool "OMAP15xx Based System"
select CPU_ARM925T
select OMAP_MPU_TIMER

config ARCH_OMAP16XX
- depends on ARCH_OMAP1
+ depends on ARCH_MULTI_V5
bool "OMAP16xx Based System"
select ARCH_OMAP_OTG
select CPU_ARM926T
diff --git a/arch/arm/mach-omap1/Makefile b/arch/arm/mach-omap1/Makefile
index 1337d7a2754c..1f0f97868953 100644
--- a/arch/arm/mach-omap1/Makefile
+++ b/arch/arm/mach-omap1/Makefile
@@ -3,6 +3,10 @@
# Makefile for the linux kernel.
#

+ccflags-$(CONFIG_ARCH_MULTIPLATFORM) += -I$(srctree)/arch/arm/mach-omap1/include
+asflags-$(CONFIG_ARCH_MULTIPLATFORM) += -I$(srctree)/arch/arm/mach-omap1/include
+ccflags-$(CONFIG_ARCH_MULTIPLATFORM) += -I$(srctree)/arch/arm/plat-omap/include
+
# Common support
obj-y := io.o id.o sram-init.o sram.o time.o irq.o mux.o flash.o \
serial.o devices.o dma.o fb.o
diff --git a/arch/arm/mach-omap1/hardware.h b/arch/arm/mach-omap1/hardware.h
index 2cfc342c069c..232b8deef907 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 0x01000000 /* Virtual IO = 0xfefb0000 */
#define OMAP1_IO_ADDRESS(pa) IOMEM((pa) - OMAP1_IO_OFFSET)

-#include <mach/serial.h>
+#include "serial.h"

/*
* ---------------------------------------------------------------------------
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 <glonnon@xxxxxxxxxxxx>
- *
- * Rewritten by:
- * Author: <source@xxxxxxxxxx>
- * 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 <linux/types.h>
-#include <linux/serial_reg.h>
-
-#include <asm/memory.h>
-#include <asm/mach-types.h>
-
-#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 d6d1843337a5..a8db332dc72e 100644
--- a/arch/arm/mach-omap1/serial.c
+++ b/arch/arm/mach-omap1/serial.c
@@ -19,8 +19,7 @@

#include <asm/mach-types.h>

-#include <mach/serial.h>
-
+#include "serial.h"
#include "mux.h"
#include "pm.h"
#include "soc.h"
diff --git a/arch/arm/mach-omap1/include/mach/serial.h b/arch/arm/mach-omap1/serial.h
similarity index 100%
rename from arch/arm/mach-omap1/include/mach/serial.h
rename to arch/arm/mach-omap1/serial.h
diff --git a/arch/arm/plat-omap/Makefile b/arch/arm/plat-omap/Makefile
index 371f2ed00eda..a11c96a093c9 100644
--- a/arch/arm/plat-omap/Makefile
+++ b/arch/arm/plat-omap/Makefile
@@ -4,6 +4,7 @@
#

ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/arch/arm/plat-omap/include
+ccflags-$(CONFIG_ARCH_OMAP1) += -I$(srctree)/arch/arm/mach-omap1/include

# Common support
obj-y := sram.o dma.o counter_32k.o
--
2.20.0