MIPS: Alchemy: one kernel for DB1000/DB1500/DB1100
These 3 boards are very similar; with this patch a single kernel image
which runs on all three can be built.
Tested on DB1500 and DB1100.
Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2872/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/alchemy/Kconfig b/arch/mips/alchemy/Kconfig
index e1b3be7..0faaab2 100644
--- a/arch/mips/alchemy/Kconfig
+++ b/arch/mips/alchemy/Kconfig
@@ -27,17 +27,12 @@
select SYS_HAS_EARLY_PRINTK
config MIPS_DB1000
- bool "Alchemy DB1000 board"
+ bool "Alchemy DB1000/DB1500/DB1100 boards"
select ALCHEMY_GPIOINT_AU1000
select DMA_NONCOHERENT
select HW_HAS_PCI
- select SYS_SUPPORTS_LITTLE_ENDIAN
- select SYS_HAS_EARLY_PRINTK
-
-config MIPS_DB1100
- bool "Alchemy DB1100 board"
- select ALCHEMY_GPIOINT_AU1000
- select DMA_NONCOHERENT
+ select MIPS_DISABLE_OBSOLETE_IDE
+ select SYS_SUPPORTS_BIG_ENDIAN
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_HAS_EARLY_PRINTK
@@ -57,16 +52,6 @@
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_HAS_EARLY_PRINTK
-config MIPS_DB1500
- bool "Alchemy DB1500 board"
- select ALCHEMY_GPIOINT_AU1000
- select DMA_NONCOHERENT
- select HW_HAS_PCI
- select MIPS_DISABLE_OBSOLETE_IDE
- select SYS_SUPPORTS_BIG_ENDIAN
- select SYS_SUPPORTS_LITTLE_ENDIAN
- select SYS_HAS_EARLY_PRINTK
-
config MIPS_DB1550
bool "Alchemy DB1550 board"
select ALCHEMY_GPIOINT_AU1000
diff --git a/arch/mips/alchemy/Platform b/arch/mips/alchemy/Platform
index bbdcc15..33f80e8 100644
--- a/arch/mips/alchemy/Platform
+++ b/arch/mips/alchemy/Platform
@@ -26,27 +26,13 @@
load-$(CONFIG_MIPS_PB1550) += 0xffffffff80100000
#
-# AMD Alchemy Db1000 eval board
+# AMD Alchemy Db1000/Db1500/Db1100 eval boards
#
platform-$(CONFIG_MIPS_DB1000) += alchemy/devboards/
cflags-$(CONFIG_MIPS_DB1000) += -I$(srctree)/arch/mips/include/asm/mach-db1x00
load-$(CONFIG_MIPS_DB1000) += 0xffffffff80100000
#
-# AMD Alchemy Db1100 eval board
-#
-platform-$(CONFIG_MIPS_DB1100) += alchemy/devboards/
-cflags-$(CONFIG_MIPS_DB1100) += -I$(srctree)/arch/mips/include/asm/mach-db1x00
-load-$(CONFIG_MIPS_DB1100) += 0xffffffff80100000
-
-#
-# AMD Alchemy Db1500 eval board
-#
-platform-$(CONFIG_MIPS_DB1500) += alchemy/devboards/
-cflags-$(CONFIG_MIPS_DB1500) += -I$(srctree)/arch/mips/include/asm/mach-db1x00
-load-$(CONFIG_MIPS_DB1500) += 0xffffffff80100000
-
-#
# AMD Alchemy Db1550 eval board
#
platform-$(CONFIG_MIPS_DB1550) += alchemy/devboards/
diff --git a/arch/mips/alchemy/devboards/Makefile b/arch/mips/alchemy/devboards/Makefile
index 2fbf179..3c37fb3 100644
--- a/arch/mips/alchemy/devboards/Makefile
+++ b/arch/mips/alchemy/devboards/Makefile
@@ -7,9 +7,7 @@
obj-$(CONFIG_MIPS_PB1100) += pb1100.o
obj-$(CONFIG_MIPS_PB1500) += pb1500.o
obj-$(CONFIG_MIPS_PB1550) += pb1550.o
-obj-$(CONFIG_MIPS_DB1000) += db1x00.o
-obj-$(CONFIG_MIPS_DB1100) += db1x00.o
+obj-$(CONFIG_MIPS_DB1000) += db1000.o
obj-$(CONFIG_MIPS_DB1200) += db1200.o
obj-$(CONFIG_MIPS_DB1300) += db1300.o
-obj-$(CONFIG_MIPS_DB1500) += db1x00.o
obj-$(CONFIG_MIPS_DB1550) += db1550.o
diff --git a/arch/mips/alchemy/devboards/db1x00.c b/arch/mips/alchemy/devboards/db1000.c
similarity index 69%
rename from arch/mips/alchemy/devboards/db1x00.c
rename to arch/mips/alchemy/devboards/db1000.c
index 589ae24..57ed5f1 100644
--- a/arch/mips/alchemy/devboards/db1x00.c
+++ b/arch/mips/alchemy/devboards/db1000.c
@@ -32,28 +32,37 @@
#include <prom.h>
#include "platform.h"
+#define F_SWAPPED (bcsr_read(BCSR_STATUS) & BCSR_STATUS_DB1000_SWAPBOOT)
+
struct pci_dev;
+static const char *board_type_str(void)
+{
+ switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
+ case BCSR_WHOAMI_DB1000:
+ return "DB1000";
+ case BCSR_WHOAMI_DB1500:
+ return "DB1500";
+ case BCSR_WHOAMI_DB1100:
+ return "DB1100";
+ default:
+ return "(unknown)";
+ }
+}
+
const char *get_system_type(void)
{
- return "Alchemy Db1x00";
+ return board_type_str();
}
void __init board_setup(void)
{
-#ifdef CONFIG_MIPS_DB1000
- printk(KERN_INFO "AMD Alchemy Au1000/Db1000 Board\n");
-#endif
-#ifdef CONFIG_MIPS_DB1500
- printk(KERN_INFO "AMD Alchemy Au1500/Db1500 Board\n");
-#endif
-#ifdef CONFIG_MIPS_DB1100
- printk(KERN_INFO "AMD Alchemy Au1100/Db1100 Board\n");
-#endif
/* initialize board register space */
bcsr_init(DB1000_BCSR_PHYS_ADDR,
DB1000_BCSR_PHYS_ADDR + DB1000_BCSR_HEXLED_OFS);
+ printk(KERN_INFO "AMD Alchemy %s Board\n", board_type_str());
+
#if defined(CONFIG_IRDA) && defined(CONFIG_AU1000_FIR)
{
u32 pin_func;
@@ -72,35 +81,6 @@
alchemy_gpio1_input_enable();
}
-/* DB1xxx PCMCIA interrupt sources:
- * CD0/1 GPIO0/3
- * STSCHG0/1 GPIO1/4
- * CARD0/1 GPIO2/5
- */
-
-#define F_SWAPPED (bcsr_read(BCSR_STATUS) & BCSR_STATUS_DB1000_SWAPBOOT)
-
-#if defined(CONFIG_MIPS_DB1000)
-#define DB1XXX_PCMCIA_CD0 AU1000_GPIO0_INT
-#define DB1XXX_PCMCIA_STSCHG0 AU1000_GPIO1_INT
-#define DB1XXX_PCMCIA_CARD0 AU1000_GPIO2_INT
-#define DB1XXX_PCMCIA_CD1 AU1000_GPIO3_INT
-#define DB1XXX_PCMCIA_STSCHG1 AU1000_GPIO4_INT
-#define DB1XXX_PCMCIA_CARD1 AU1000_GPIO5_INT
-#elif defined(CONFIG_MIPS_DB1100)
-#define DB1XXX_PCMCIA_CD0 AU1100_GPIO0_INT
-#define DB1XXX_PCMCIA_STSCHG0 AU1100_GPIO1_INT
-#define DB1XXX_PCMCIA_CARD0 AU1100_GPIO2_INT
-#define DB1XXX_PCMCIA_CD1 AU1100_GPIO3_INT
-#define DB1XXX_PCMCIA_STSCHG1 AU1100_GPIO4_INT
-#define DB1XXX_PCMCIA_CARD1 AU1100_GPIO5_INT
-#elif defined(CONFIG_MIPS_DB1500)
-#define DB1XXX_PCMCIA_CD0 AU1500_GPIO0_INT
-#define DB1XXX_PCMCIA_STSCHG0 AU1500_GPIO1_INT
-#define DB1XXX_PCMCIA_CARD0 AU1500_GPIO2_INT
-#define DB1XXX_PCMCIA_CD1 AU1500_GPIO3_INT
-#define DB1XXX_PCMCIA_STSCHG1 AU1500_GPIO4_INT
-#define DB1XXX_PCMCIA_CARD1 AU1500_GPIO5_INT
static int db1500_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
{
@@ -141,13 +121,14 @@
static int __init db1500_pci_init(void)
{
- return platform_device_register(&db1500_pci_host_dev);
+ if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1500)
+ return platform_device_register(&db1500_pci_host_dev);
+ return 0;
}
/* must be arch_initcall; MIPS PCI scans busses in a subsys_initcall */
arch_initcall(db1500_pci_init);
-#endif
-#ifdef CONFIG_MIPS_DB1100
+
static struct resource au1100_lcd_resources[] = {
[0] = {
.start = AU1100_LCD_PHYS_ADDR,
@@ -173,7 +154,6 @@
.num_resources = ARRAY_SIZE(au1100_lcd_resources),
.resource = au1100_lcd_resources,
};
-#endif
static struct resource alchemy_ac97c_res[] = {
[0] = {
@@ -214,14 +194,53 @@
.name = "db1000-audio",
};
-static int __init db1xxx_dev_init(void)
+static struct platform_device *db1x00_devs[] = {
+ &db1x00_codec_dev,
+ &alchemy_ac97c_dma_dev,
+ &alchemy_ac97c_dev,
+ &db1x00_audio_dev,
+};
+
+static struct platform_device *db1100_devs[] = {
+ &au1100_lcd_device,
+};
+
+static int __init db1000_dev_init(void)
{
- irq_set_irq_type(DB1XXX_PCMCIA_CD0, IRQ_TYPE_EDGE_BOTH);
- irq_set_irq_type(DB1XXX_PCMCIA_CD1, IRQ_TYPE_EDGE_BOTH);
- irq_set_irq_type(DB1XXX_PCMCIA_CARD0, IRQ_TYPE_LEVEL_LOW);
- irq_set_irq_type(DB1XXX_PCMCIA_CARD1, IRQ_TYPE_LEVEL_LOW);
- irq_set_irq_type(DB1XXX_PCMCIA_STSCHG0, IRQ_TYPE_LEVEL_LOW);
- irq_set_irq_type(DB1XXX_PCMCIA_STSCHG1, IRQ_TYPE_LEVEL_LOW);
+ int board = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
+ int c0, c1, d0, d1, s0, s1;
+
+ if (board == BCSR_WHOAMI_DB1500) {
+ c0 = AU1500_GPIO2_INT;
+ c1 = AU1500_GPIO5_INT;
+ d0 = AU1500_GPIO0_INT;
+ d1 = AU1500_GPIO3_INT;
+ s0 = AU1500_GPIO1_INT;
+ s1 = AU1500_GPIO4_INT;
+ } else if (board == BCSR_WHOAMI_DB1100) {
+ c0 = AU1100_GPIO2_INT;
+ c1 = AU1100_GPIO5_INT;
+ d0 = AU1100_GPIO0_INT;
+ d1 = AU1100_GPIO3_INT;
+ s0 = AU1100_GPIO1_INT;
+ s1 = AU1100_GPIO4_INT;
+ platform_add_devices(db1100_devs, ARRAY_SIZE(db1100_devs));
+ } else if (board == BCSR_WHOAMI_DB1000) {
+ c0 = AU1000_GPIO2_INT;
+ c1 = AU1000_GPIO5_INT;
+ d0 = AU1000_GPIO0_INT;
+ d1 = AU1000_GPIO3_INT;
+ s0 = AU1000_GPIO1_INT;
+ s1 = AU1000_GPIO4_INT;
+ } else
+ return 0; /* unknown board, no further dev setup to do */
+
+ irq_set_irq_type(d0, IRQ_TYPE_EDGE_BOTH);
+ irq_set_irq_type(d1, IRQ_TYPE_EDGE_BOTH);
+ irq_set_irq_type(c0, IRQ_TYPE_LEVEL_LOW);
+ irq_set_irq_type(c1, IRQ_TYPE_LEVEL_LOW);
+ irq_set_irq_type(s0, IRQ_TYPE_LEVEL_LOW);
+ irq_set_irq_type(s1, IRQ_TYPE_LEVEL_LOW);
db1x_register_pcmcia_socket(
AU1000_PCMCIA_ATTR_PHYS_ADDR,
@@ -230,8 +249,7 @@
AU1000_PCMCIA_MEM_PHYS_ADDR + 0x000400000 - 1,
AU1000_PCMCIA_IO_PHYS_ADDR,
AU1000_PCMCIA_IO_PHYS_ADDR + 0x000010000 - 1,
- DB1XXX_PCMCIA_CARD0, DB1XXX_PCMCIA_CD0,
- /*DB1XXX_PCMCIA_STSCHG0*/0, 0, 0);
+ c0, d0, /*s0*/0, 0, 0);
db1x_register_pcmcia_socket(
AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004000000,
@@ -240,17 +258,10 @@
AU1000_PCMCIA_MEM_PHYS_ADDR + 0x004400000 - 1,
AU1000_PCMCIA_IO_PHYS_ADDR + 0x004000000,
AU1000_PCMCIA_IO_PHYS_ADDR + 0x004010000 - 1,
- DB1XXX_PCMCIA_CARD1, DB1XXX_PCMCIA_CD1,
- /*DB1XXX_PCMCIA_STSCHG1*/0, 0, 1);
-#ifdef CONFIG_MIPS_DB1100
- platform_device_register(&au1100_lcd_device);
-#endif
- platform_device_register(&db1x00_codec_dev);
- platform_device_register(&alchemy_ac97c_dma_dev);
- platform_device_register(&alchemy_ac97c_dev);
- platform_device_register(&db1x00_audio_dev);
+ c1, d1, /*s1*/0, 0, 1);
+ platform_add_devices(db1x00_devs, ARRAY_SIZE(db1x00_devs));
db1x_register_norflash(32 << 20, 4 /* 32bit */, F_SWAPPED);
return 0;
}
-device_initcall(db1xxx_dev_init);
+device_initcall(db1000_dev_init);
diff --git a/arch/mips/alchemy/devboards/prom.c b/arch/mips/alchemy/devboards/prom.c
index 3a73f96..93a2210 100644
--- a/arch/mips/alchemy/devboards/prom.c
+++ b/arch/mips/alchemy/devboards/prom.c
@@ -34,8 +34,8 @@
#include <prom.h>
#if defined(CONFIG_MIPS_DB1000) || \
- defined(CONFIG_MIPS_PB1100) || defined(CONFIG_MIPS_DB1100) || \
- defined(CONFIG_MIPS_PB1500) || defined(CONFIG_MIPS_DB1500)
+ defined(CONFIG_MIPS_PB1100) || \
+ defined(CONFIG_MIPS_PB1500)
#define ALCHEMY_BOARD_DEFAULT_MEMSIZE 0x04000000
#else /* Au1550/Au1200-based develboards */