[PATCH 21/22] ARM: gemini: convert to ARMv4 multiplatform
From: Linus Walleij
Date: Sun Jan 22 2017 - 07:25:25 EST
This converts the Gemini platform to ARMv4 multiplatform, deleting
the local <mach/*> include directory, moving an idiomatic local
idling function into the .machine_init() call and getting rid of
the Makefile.boot finally.
Cc: Janos Laube <janos.dev@xxxxxxxxx>
Cc: Paulius Zaleckas <paulius.zaleckas@xxxxxxxxx>
Cc: Hans Ulli Kroll <ulli.kroll@xxxxxxxxxxxxxx>
Cc: Florian Fainelli <f.fainelli@xxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
arch/arm/Kconfig | 23 +--------
arch/arm/mach-gemini/Kconfig | 12 +++++
arch/arm/mach-gemini/Makefile | 2 +-
arch/arm/mach-gemini/Makefile.boot | 1 -
arch/arm/mach-gemini/board-dt.c | 24 +++++++++
arch/arm/mach-gemini/idle.c | 31 -----------
arch/arm/mach-gemini/include/mach/hardware.h | 71 --------------------------
arch/arm/mach-gemini/include/mach/uncompress.h | 42 ---------------
8 files changed, 39 insertions(+), 167 deletions(-)
create mode 100644 arch/arm/mach-gemini/Kconfig
delete mode 100644 arch/arm/mach-gemini/Makefile.boot
delete mode 100644 arch/arm/mach-gemini/idle.c
delete mode 100644 arch/arm/mach-gemini/include/mach/hardware.h
delete mode 100644 arch/arm/mach-gemini/include/mach/uncompress.h
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 2e99bf1c5c53..6683d266950d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -353,27 +353,6 @@ config ARM_SINGLE_ARMV7M
select SPARSE_IRQ
select USE_OF
-config ARCH_GEMINI
- bool "Cortina Systems Gemini"
- select ARM_APPENDED_DTB # Old Redboot bootloaders deployed
- select ARM_PATCH_PHYS_VIRT
- select AUTO_ZRELADDR
- select CLKSRC_MMIO
- select CLKSRC_OF
- select CPU_FA526
- select GEMINI_TIMER
- select GENERIC_CLOCKEVENTS
- select GPIO_GEMINI
- select GPIOLIB
- select MULTI_IRQ_HANDLER
- select POWER_RESET
- select POWER_RESET_SYSCON
- select SERIAL_OF_PLATFORM
- select SPARSE_IRQ
- select USE_OF
- help
- Support for the Cortina Systems Gemini family SoCs
-
config ARCH_EBSA110
bool "EBSA-110"
select ARCH_USES_GETTIMEOFFSET
@@ -754,6 +733,8 @@ source "arch/arm/mach-ep93xx/Kconfig"
source "arch/arm/mach-footbridge/Kconfig"
+source "arch/arm/mach-gemini/Kconfig"
+
source "arch/arm/mach-highbank/Kconfig"
source "arch/arm/mach-hisi/Kconfig"
diff --git a/arch/arm/mach-gemini/Kconfig b/arch/arm/mach-gemini/Kconfig
new file mode 100644
index 000000000000..798abb16bb88
--- /dev/null
+++ b/arch/arm/mach-gemini/Kconfig
@@ -0,0 +1,12 @@
+menuconfig ARCH_GEMINI
+ bool "Cortina Systems Gemini"
+ depends on ARCH_MULTI_V4
+ select ARM_APPENDED_DTB # Old Redboot bootloaders deployed
+ select GEMINI_TIMER
+ select GPIO_GEMINI
+ select GPIOLIB
+ select POWER_RESET
+ select POWER_RESET_SYSCON
+ select SERIAL_OF_PLATFORM
+ help
+ Support for the Cortina Systems Gemini family SoCs
diff --git a/arch/arm/mach-gemini/Makefile b/arch/arm/mach-gemini/Makefile
index 30c5acffe948..ca0db5477180 100644
--- a/arch/arm/mach-gemini/Makefile
+++ b/arch/arm/mach-gemini/Makefile
@@ -1,2 +1,2 @@
# Makefile for Cortina systems Gemini
-obj-y := idle.o board-dt.o
+obj-y := board-dt.o
diff --git a/arch/arm/mach-gemini/Makefile.boot b/arch/arm/mach-gemini/Makefile.boot
deleted file mode 100644
index 8e3d1c6e1e38..000000000000
--- a/arch/arm/mach-gemini/Makefile.boot
+++ /dev/null
@@ -1 +0,0 @@
-# Empty on purpose
diff --git a/arch/arm/mach-gemini/board-dt.c b/arch/arm/mach-gemini/board-dt.c
index 2983246d9c63..aabed8409779 100644
--- a/arch/arm/mach-gemini/board-dt.c
+++ b/arch/arm/mach-gemini/board-dt.c
@@ -7,6 +7,8 @@
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
+#include <asm/system_misc.h>
+#include <asm/proc-fns.h>
/* Can we just use CONFIG_DEBUG_UART_PHYS and CONFIG_DEBUG_UART_VIRT? */
#define GEMINI_UART_BASE 0x42000000
@@ -27,6 +29,27 @@ static void __init gemini_map_io(void)
iotable_init(gemini_io_desc, ARRAY_SIZE(gemini_io_desc));
}
+static void gemini_idle(void)
+{
+ /*
+ * Because of broken hardware we have to enable interrupts or the CPU
+ * will never wakeup... Acctualy it is not very good to enable
+ * interrupts first since scheduler can miss a tick, but there is
+ * no other way around this. Platforms that needs it for power saving
+ * should enable it in init code, since by default it is
+ * disabled.
+ */
+
+ /* FIXME: Enabling interrupts here is racy! */
+ local_irq_enable();
+ cpu_do_idle();
+}
+
+static void __init gemini_init_machine(void)
+{
+ arm_pm_idle = gemini_idle;
+}
+
static const char *gemini_board_compat[] = {
"cortina,gemini",
NULL,
@@ -34,5 +57,6 @@ static const char *gemini_board_compat[] = {
DT_MACHINE_START(GEMINI_DT, "Gemini (Device Tree)")
.map_io = gemini_map_io,
+ .init_machine = gemini_init_machine,
.dt_compat = gemini_board_compat,
MACHINE_END
diff --git a/arch/arm/mach-gemini/idle.c b/arch/arm/mach-gemini/idle.c
deleted file mode 100644
index ddf8ec9d203b..000000000000
--- a/arch/arm/mach-gemini/idle.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * arch/arm/mach-gemini/idle.c
- */
-
-#include <linux/init.h>
-#include <asm/system_misc.h>
-#include <asm/proc-fns.h>
-
-static void gemini_idle(void)
-{
- /*
- * Because of broken hardware we have to enable interrupts or the CPU
- * will never wakeup... Acctualy it is not very good to enable
- * interrupts first since scheduler can miss a tick, but there is
- * no other way around this. Platforms that needs it for power saving
- * should enable it in init code, since by default it is
- * disabled.
- */
-
- /* FIXME: Enabling interrupts here is racy! */
- local_irq_enable();
- cpu_do_idle();
-}
-
-static int __init gemini_idle_init(void)
-{
- arm_pm_idle = gemini_idle;
- return 0;
-}
-
-arch_initcall(gemini_idle_init);
diff --git a/arch/arm/mach-gemini/include/mach/hardware.h b/arch/arm/mach-gemini/include/mach/hardware.h
deleted file mode 100644
index f0390f184742..000000000000
--- a/arch/arm/mach-gemini/include/mach/hardware.h
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * This file contains the hardware definitions for Gemini.
- *
- * Copyright (C) 2001-2006 Storlink, Corp.
- * Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@xxxxxxxxxxxx>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-#ifndef __MACH_HARDWARE_H
-#define __MACH_HARDWARE_H
-
-/*
- * Memory Map definitions
- */
-#ifdef CONFIG_GEMINI_MEM_SWAP
-# define GEMINI_DRAM_BASE 0x00000000
-# define GEMINI_SRAM_BASE 0x70000000
-#else
-# define GEMINI_SRAM_BASE 0x00000000
-# define GEMINI_DRAM_BASE 0x10000000
-#endif
-#define GEMINI_FLASH_BASE 0x30000000
-#define GEMINI_GLOBAL_BASE 0x40000000
-#define GEMINI_WAQTCHDOG_BASE 0x41000000
-#define GEMINI_UART_BASE 0x42000000
-#define GEMINI_TIMER_BASE 0x43000000
-#define GEMINI_LCD_BASE 0x44000000
-#define GEMINI_RTC_BASE 0x45000000
-#define GEMINI_SATA_BASE 0x46000000
-#define GEMINI_LPC_HOST_BASE 0x47000000
-#define GEMINI_LPC_IO_BASE 0x47800000
-#define GEMINI_INTERRUPT_BASE 0x48000000
-/* TODO: Different interrupt controllers when SMP
- * #define GEMINI_INTERRUPT0_BASE 0x48000000
- * #define GEMINI_INTERRUPT1_BASE 0x49000000
- */
-#define GEMINI_SSP_CTRL_BASE 0x4A000000
-#define GEMINI_POWER_CTRL_BASE 0x4B000000
-#define GEMINI_CIR_BASE 0x4C000000
-#define GEMINI_GPIO_BASE(x) (0x4D000000 + (x) * 0x1000000)
-#define GEMINI_PCI_IO_BASE 0x50000000
-#define GEMINI_PCI_MEM_BASE 0x58000000
-#define GEMINI_TOE_BASE 0x60000000
-#define GEMINI_GMAC0_BASE 0x6000A000
-#define GEMINI_GMAC1_BASE 0x6000E000
-#define GEMINI_SECURITY_BASE 0x62000000
-#define GEMINI_IDE0_BASE 0x63000000
-#define GEMINI_IDE1_BASE 0x63400000
-#define GEMINI_RAID_BASE 0x64000000
-#define GEMINI_FLASH_CTRL_BASE 0x65000000
-#define GEMINI_DRAM_CTRL_BASE 0x66000000
-#define GEMINI_GENERAL_DMA_BASE 0x67000000
-#define GEMINI_USB0_BASE 0x68000000
-#define GEMINI_USB1_BASE 0x69000000
-#define GEMINI_BIG_ENDIAN_BASE 0x80000000
-
-
-/*
- * UART Clock when System clk is 150MHz
- */
-#define UART_CLK 48000000
-
-/*
- * macro to get at IO space when running virtually
- */
-#define IO_ADDRESS(x) IOMEM((((x) & 0xFFF00000) >> 4) | ((x) & 0x000FFFFF) | 0xF0000000)
-
-#endif
diff --git a/arch/arm/mach-gemini/include/mach/uncompress.h b/arch/arm/mach-gemini/include/mach/uncompress.h
deleted file mode 100644
index 02e225673acb..000000000000
--- a/arch/arm/mach-gemini/include/mach/uncompress.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@xxxxxxxxxxxx>
- *
- * Based on mach-pxa/include/mach/uncompress.h:
- * Copyright: (C) 2001 MontaVista Software Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#ifndef __MACH_UNCOMPRESS_H
-#define __MACH_UNCOMPRESS_H
-
-#include <linux/serial_reg.h>
-#include <mach/hardware.h>
-
-static volatile unsigned long * const UART = (unsigned long *)GEMINI_UART_BASE;
-
-/*
- * The following code assumes the serial port has already been
- * initialized by the bootloader. If you didn't setup a port in
- * your bootloader then nothing will appear (which might be desired).
- */
-static inline void putc(char c)
-{
- while (!(UART[UART_LSR] & UART_LSR_THRE))
- barrier();
- UART[UART_TX] = c;
-}
-
-static inline void flush(void)
-{
-}
-
-/*
- * nothing to do
- */
-#define arch_decomp_setup()
-
-#endif /* __MACH_UNCOMPRESS_H */
--
2.9.3