Merge branch for-rmk-devel of git://aeryn.fluff.org.uk/bjdooks/linux into devel

9 files changed, 368 insertions, 4 deletions

diff --git a/arch/arm/mach-s3c6400/Kconfig b/arch/arm/mach-s3c6400/Kconfig
index 6da82b5c09b..f5af212066c 100644
--- a/arch/arm/mach-s3c6400/Kconfig
+++ b/arch/arm/mach-s3c6400/Kconfig
@@ -5,4 +5,27 @@
 #
 # Licensed under GPLv2
 
-# Currently nothing here, this will be added later
+# Configuration options for the S3C6410 CPU
+
+config CPU_S3C6400
+	bool
+	select CPU_S3C6400_INIT
+	select CPU_S3C6400_CLOCK
+	help
+	  Enable S3C6400 CPU support
+
+config S3C6400_SETUP_SDHCI
+	bool
+	help
+	  Internal configuration for default SDHCI
+	  setup for S3C6400.
+
+# S36400 Macchine support
+
+config MACH_SMDK6400
+       bool "SMDK6400"
+	select CPU_S3C6400
+	select S3C_DEV_HSMMC
+	select S3C6400_SETUP_SDHCI
+	help
+	  Machine support for the Samsung SMDK6400
diff --git a/arch/arm/mach-s3c6400/Makefile b/arch/arm/mach-s3c6400/Makefile
index 8f397db25b8..df1ce4aa03e 100644
--- a/arch/arm/mach-s3c6400/Makefile
+++ b/arch/arm/mach-s3c6400/Makefile
@@ -12,4 +12,12 @@ obj-				:=
 
 # Core support for S3C6400 system
 
-obj-n				+= blank.o
+obj-$(CONFIG_CPU_S3C6400)	+= s3c6400.o
+
+# setup support
+
+obj-$(CONFIG_S3C6400_SETUP_SDHCI) += setup-sdhci.o
+
+# Machine support
+
+obj-$(CONFIG_MACH_SMDK6400)	+= mach-smdk6400.o
diff --git a/arch/arm/mach-s3c6400/include/mach/dma.h b/arch/arm/mach-s3c6400/include/mach/dma.h
index 9771ac2cb07..1067619f0ba 100644
--- a/arch/arm/mach-s3c6400/include/mach/dma.h
+++ b/arch/arm/mach-s3c6400/include/mach/dma.h
@@ -11,6 +11,63 @@
 #ifndef __ASM_ARCH_DMA_H
 #define __ASM_ARCH_DMA_H __FILE__
 
-/* currently nothing here, placeholder */
+#define S3C_DMA_CHANNELS	(16)
+
+/* see mach-s3c2410/dma.h for notes on dma channel numbers */
+
+/* Note, for the S3C64XX architecture we keep the DMACH_
+ * defines in the order they are allocated to [S]DMA0/[S]DMA1
+ * so that is easy to do DHACH_ -> DMA controller conversion
+ */
+enum dma_ch {
+	/* DMA0/SDMA0 */
+	DMACH_UART0 = 0,
+	DMACH_UART0_SRC2,
+	DMACH_UART1,
+	DMACH_UART1_SRC2,
+	DMACH_UART2,
+	DMACH_UART2_SRC2,
+	DMACH_UART3,
+	DMACH_UART3_SRC2,
+	DMACH_PCM0_TX,
+	DMACH_PCM0_RX,
+	DMACH_I2S0_OUT,
+	DMACH_I2S0_IN,
+	DMACH_SPI0_TX,
+	DMACH_SPI0_RX,
+	DMACH_HSI_I2SV40_TX,
+	DMACH_HSI_I2SV40_RX,
+
+	/* DMA1/SDMA1 */
+	DMACH_PCM1_TX = 16,
+	DMACH_PCM1_RX,
+	DMACH_I2S1_OUT,
+	DMACH_I2S1_IN,
+	DMACH_SPI1_TX,
+	DMACH_SPI1_RX,
+	DMACH_AC97_PCMOUT,
+	DMACH_AC97_PCMIN,
+	DMACH_AC97_MICIN,
+	DMACH_PWM,
+	DMACH_IRDA,
+	DMACH_EXTERNAL,
+	DMACH_RES1,
+	DMACH_RES2,
+	DMACH_SECURITY_RX,	/* SDMA1 only */
+	DMACH_SECURITY_TX,	/* SDMA1 only */
+	DMACH_MAX		/* the end */
+};
+
+static __inline__ int s3c_dma_has_circular(void)
+{
+	/* we will be supporting ciruclar buffers as soon as we have DMA
+	 * engine support.
+	 */
+	return 1;
+}
+
+#define S3C2410_DMAF_CIRCULAR		(1 << 0)
+
+#include <plat/dma.h>
 
 #endif /* __ASM_ARCH_IRQ_H */
diff --git a/arch/arm/mach-s3c6400/include/mach/map.h b/arch/arm/mach-s3c6400/include/mach/map.h
index 8199972ed5b..5057d9948d3 100644
--- a/arch/arm/mach-s3c6400/include/mach/map.h
+++ b/arch/arm/mach-s3c6400/include/mach/map.h
@@ -39,6 +39,8 @@
 #define S3C_VA_UART3		S3C_VA_UARTx(3)
 
 #define S3C64XX_PA_FB		(0x77100000)
+#define S3C64XX_PA_USB_HSOTG	(0x7C000000)
+#define S3C64XX_PA_WATCHDOG	(0x7E004000)
 #define S3C64XX_PA_SYSCON	(0x7E00F000)
 #define S3C64XX_PA_IIS0		(0x7F002000)
 #define S3C64XX_PA_IIS1		(0x7F003000)
@@ -57,6 +59,8 @@
 #define S3C64XX_PA_MODEM	(0x74108000)
 #define S3C64XX_VA_MODEM	S3C_ADDR(0x00600000)
 
+#define S3C64XX_PA_USBHOST	(0x74300000)
+
 /* place VICs close together */
 #define S3C_VA_VIC0		(S3C_VA_IRQ + 0x00)
 #define S3C_VA_VIC1		(S3C_VA_IRQ + 0x10000)
@@ -69,5 +73,7 @@
 #define S3C_PA_IIC		S3C64XX_PA_IIC0
 #define S3C_PA_IIC1		S3C64XX_PA_IIC1
 #define S3C_PA_FB		S3C64XX_PA_FB
+#define S3C_PA_USBHOST		S3C64XX_PA_USBHOST
+#define S3C_PA_USB_HSOTG	S3C64XX_PA_USB_HSOTG
 
 #endif /* __ASM_ARCH_6400_MAP_H */
diff --git a/arch/arm/mach-s3c6400/include/mach/regs-clock.h b/arch/arm/mach-s3c6400/include/mach/regs-clock.h
new file mode 100644
index 00000000000..a6c7f4eb3a1
--- /dev/null
+++ b/arch/arm/mach-s3c6400/include/mach/regs-clock.h
@@ -0,0 +1,16 @@
+/* linux/arch/arm/mach-s3c6400/include/mach/regs-clock.h
+ *
+ * Copyright 2008 Openmoko, Inc.
+ * Copyright 2008 Simtec Electronics
+ *	http://armlinux.simtec.co.uk/
+ *	Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C64XX - clock register compatibility with s3c24xx
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <plat/regs-clock.h>
+
diff --git a/arch/arm/mach-s3c6400/include/mach/system.h b/arch/arm/mach-s3c6400/include/mach/system.h
index 090cfd969bc..2e58cb7a714 100644
--- a/arch/arm/mach-s3c6400/include/mach/system.h
+++ b/arch/arm/mach-s3c6400/include/mach/system.h
@@ -11,6 +11,8 @@
 #ifndef __ASM_ARCH_SYSTEM_H
 #define __ASM_ARCH_SYSTEM_H __FILE__
 
+#include <plat/watchdog-reset.h>
+
 static void arch_idle(void)
 {
 	/* nothing here yet */
@@ -18,7 +20,11 @@ static void arch_idle(void)
 
 static void arch_reset(char mode, const char *cmd)
 {
-	/* nothing here yet */
+	if (mode != 's')
+		arch_wdt_reset();
+
+	/* if all else fails, or mode was for soft, jump to 0 */
+	cpu_reset(0);
 }
 
 #endif /* __ASM_ARCH_IRQ_H */
diff --git a/arch/arm/mach-s3c6400/mach-smdk6400.c b/arch/arm/mach-s3c6400/mach-smdk6400.c
new file mode 100644
index 00000000000..ab19285389a
--- /dev/null
+++ b/arch/arm/mach-s3c6400/mach-smdk6400.c
@@ -0,0 +1,96 @@
+/* linux/arch/arm/mach-s3c6400/mach-smdk6400.c
+ *
+ * Copyright 2008 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *	http://armlinux.simtec.co.uk/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/timer.h>
+#include <linux/init.h>
+#include <linux/serial_core.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/io.h>
+
+#include <asm/mach-types.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <mach/hardware.h>
+#include <mach/map.h>
+
+#include <plat/regs-serial.h>
+
+#include <plat/s3c6400.h>
+#include <plat/clock.h>
+#include <plat/devs.h>
+#include <plat/cpu.h>
+#include <plat/iic.h>
+
+#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
+#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
+#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
+
+static struct s3c2410_uartcfg smdk6400_uartcfgs[] __initdata = {
+	[0] = {
+		.hwport	     = 0,
+		.flags	     = 0,
+		.ucon	     = 0x3c5,
+		.ulcon	     = 0x03,
+		.ufcon	     = 0x51,
+	},
+	[1] = {
+		.hwport	     = 1,
+		.flags	     = 0,
+		.ucon	     = 0x3c5,
+		.ulcon	     = 0x03,
+		.ufcon	     = 0x51,
+	},
+};
+
+static struct map_desc smdk6400_iodesc[] = {};
+
+static void __init smdk6400_map_io(void)
+{
+	s3c64xx_init_io(smdk6400_iodesc, ARRAY_SIZE(smdk6400_iodesc));
+	s3c24xx_init_clocks(12000000);
+	s3c24xx_init_uarts(smdk6400_uartcfgs, ARRAY_SIZE(smdk6400_uartcfgs));
+}
+
+static struct platform_device *smdk6400_devices[] __initdata = {
+	&s3c_device_hsmmc1,
+	&s3c_device_i2c0,
+};
+
+static struct i2c_board_info i2c_devs[] __initdata = {
+	{ I2C_BOARD_INFO("wm8753", 0x1A), },
+	{ I2C_BOARD_INFO("24c08", 0x50), },
+};
+
+static void __init smdk6400_machine_init(void)
+{
+	i2c_register_board_info(0, i2c_devs, ARRAY_SIZE(i2c_devs));
+	platform_add_devices(smdk6400_devices, ARRAY_SIZE(smdk6400_devices));
+}
+
+MACHINE_START(SMDK6400, "SMDK6400")
+	/* Maintainer: Ben Dooks <ben@fluff.org> */
+	.phys_io	= S3C_PA_UART & 0xfff00000,
+	.io_pg_offst	= (((u32)S3C_VA_UART) >> 18) & 0xfffc,
+	.boot_params	= S3C64XX_PA_SDRAM + 0x100,
+
+	.init_irq	= s3c6400_init_irq,
+	.map_io		= smdk6400_map_io,
+	.init_machine	= smdk6400_machine_init,
+	.timer		= &s3c24xx_timer,
+MACHINE_END
diff --git a/arch/arm/mach-s3c6400/s3c6400.c b/arch/arm/mach-s3c6400/s3c6400.c
new file mode 100644
index 00000000000..1ece887d90b
--- /dev/null
+++ b/arch/arm/mach-s3c6400/s3c6400.c
@@ -0,0 +1,89 @@
+/* linux/arch/arm/mach-s3c6410/cpu.c
+ *
+ * Copyright 2009 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *	http://armlinux.simtec.co.uk/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/timer.h>
+#include <linux/init.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/sysdev.h>
+#include <linux/serial_core.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <mach/hardware.h>
+#include <asm/irq.h>
+
+#include <plat/cpu-freq.h>
+#include <plat/regs-serial.h>
+#include <plat/regs-clock.h>
+
+#include <plat/cpu.h>
+#include <plat/devs.h>
+#include <plat/clock.h>
+#include <plat/sdhci.h>
+#include <plat/iic-core.h>
+#include <plat/s3c6400.h>
+
+void __init s3c6400_map_io(void)
+{
+	/* setup SDHCI */
+
+	s3c6400_default_sdhci0();
+	s3c6400_default_sdhci1();
+
+	/* the i2c devices are directly compatible with s3c2440 */
+	s3c_i2c0_setname("s3c2440-i2c");
+}
+
+void __init s3c6400_init_clocks(int xtal)
+{
+	printk(KERN_DEBUG "%s: initialising clocks\n", __func__);
+	s3c24xx_register_baseclocks(xtal);
+	s3c64xx_register_clocks();
+	s3c6400_register_clocks(S3C6400_CLKDIV0_ARM_MASK);
+	s3c6400_setup_clocks();
+}
+
+void __init s3c6400_init_irq(void)
+{
+	/* VIC0 does not have IRQS 5..7,
+	 * VIC1 is fully populated. */
+	s3c64xx_init_irq(~0 & ~(0xf << 5), ~0);
+}
+
+struct sysdev_class s3c6400_sysclass = {
+	.name	= "s3c6400-core",
+};
+
+static struct sys_device s3c6400_sysdev = {
+	.cls	= &s3c6400_sysclass,
+};
+
+static int __init s3c6400_core_init(void)
+{
+	return sysdev_class_register(&s3c6400_sysclass);
+}
+
+core_initcall(s3c6400_core_init);
+
+int __init s3c6400_init(void)
+{
+	printk("S3C6400: Initialising architecture\n");
+
+	return sysdev_register(&s3c6400_sysdev);
+}
diff --git a/arch/arm/mach-s3c6400/setup-sdhci.c b/arch/arm/mach-s3c6400/setup-sdhci.c
new file mode 100644
index 00000000000..b93dafbee1f
--- /dev/null
+++ b/arch/arm/mach-s3c6400/setup-sdhci.c
@@ -0,0 +1,63 @@
+/* linux/arch/arm/mach-s3c6410/setup-sdhci.c
+ *
+ * Copyright 2008 Simtec Electronics
+ * Copyright 2008 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *	http://armlinux.simtec.co.uk/
+ *
+ * S3C6410 - Helper functions for settign up SDHCI device(s) (HSMMC)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+
+#include <linux/mmc/card.h>
+#include <linux/mmc/host.h>
+
+#include <plat/regs-sdhci.h>
+#include <plat/sdhci.h>
+
+/* clock sources for the mmc bus clock, order as for the ctrl2[5..4] */
+
+char *s3c6400_hsmmc_clksrcs[4] = {
+	[0] = "hsmmc",
+	[1] = "hsmmc",
+	[2] = "mmc_bus",
+	/* [3] = "48m", - note not succesfully used yet */
+};
+
+void s3c6400_setup_sdhci_cfg_card(struct platform_device *dev,
+				  void __iomem *r,
+				  struct mmc_ios *ios,
+				  struct mmc_card *card)
+{
+	u32 ctrl2, ctrl3;
+
+	ctrl2 = readl(r + S3C_SDHCI_CONTROL2);
+	ctrl2 &= S3C_SDHCI_CTRL2_SELBASECLK_MASK;
+	ctrl2 |= (S3C64XX_SDHCI_CTRL2_ENSTAASYNCCLR |
+		  S3C64XX_SDHCI_CTRL2_ENCMDCNFMSK |
+		  S3C_SDHCI_CTRL2_ENFBCLKRX |
+		  S3C_SDHCI_CTRL2_DFCNT_NONE |
+		  S3C_SDHCI_CTRL2_ENCLKOUTHOLD);
+
+	if (ios->clock < 25 * 1000000)
+		ctrl3 = (S3C_SDHCI_CTRL3_FCSEL3 |
+			 S3C_SDHCI_CTRL3_FCSEL2 |
+			 S3C_SDHCI_CTRL3_FCSEL1 |
+			 S3C_SDHCI_CTRL3_FCSEL0);
+	else
+		ctrl3 = (S3C_SDHCI_CTRL3_FCSEL1 | S3C_SDHCI_CTRL3_FCSEL0);
+
+	printk(KERN_INFO "%s: CTRL 2=%08x, 3=%08x\n", __func__, ctrl2, ctrl3);
+	writel(ctrl2, r + S3C_SDHCI_CONTROL2);
+	writel(ctrl3, r + S3C_SDHCI_CONTROL3);
+}
+