arch/arm/mach-sa110/jornada820.c : Add skeleton machine file * Jornada820 was working in the early 2.6.x series so lets slowly bring it back into the spotlight.

1 files changed, 160 insertions, 0 deletions

diff --git a/arch/arm/mach-sa1100/jornada820.c b/arch/arm/mach-sa1100/jornada820.c
new file mode 100644
index 00000000000000..1e8a7a68a8bc70
--- /dev/null
+++ b/arch/arm/mach-sa1100/jornada820.c
@@ -0,0 +1,160 @@
+/*
+ * linux/arch/arm/mach-sa1100/jornada820.c
+ * Jornada 820 fixup and initialization code.
+ * 2004/01/22 George Almasi (galmasi@optonline.net)
+ * Modelled after the Jornada 720 code.
+ * 
+ * $Id: jornada820.c,v 1.16 2005/07/29 11:09:24 fare Exp $
+ */
+
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/device.h>
+#include <asm/setup.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/serial_sa1100.h>
+#include <asm/irq.h>
+#include <asm/hardware.h>
+#include <asm/hardware/sa1101.h>
+#include <asm/hardware/ssp.h>
+#include <asm/delay.h>
+#include "generic.h"
+
+
+static struct resource sa1101_resources[] = {
+	[0] = {
+		.start  = JORNADA820_SA1101_BASE,
+		.end    = JORNADA820_SA1101_BASE+0x3ffffff,
+		.flags  = IORESOURCE_MEM,
+	},
+/* DO WE NEED SOMETHING LIKE THIS? (Excerpted from jornada720.c)
+        [1] = {
+                .start          = IRQ_GPIO1,
+                .end            = IRQ_GPIO1,
+                .flags          = IORESOURCE_IRQ,
+        },
+*/
+};
+
+/* jornada720 has something about dma mask... */
+
+static struct platform_device sa1101_device = {
+	.name       = "sa1101-bus",
+	.id     = 0,
+	.num_resources  = ARRAY_SIZE(sa1101_resources),
+	.resource   = sa1101_resources,
+};
+
+static struct platform_device *devices[] __initdata = {
+	&sa1101_device,
+};
+
+
+/* *********************************************************************** */
+/* Initialize the Jornada 820.                                             */
+/* *********************************************************************** */
+
+static int __init jornada820_init(void)
+{
+  printk("In jornada820_init\n");
+
+  /* allow interrupts: */
+  /* audio et al. */
+  set_irq_type(GPIO_JORNADA820_UCB1200_IRQ, IRQT_RISING);
+  /* sa1101 mux */
+  set_irq_type(GPIO_JORNADA820_SA1101_CHAIN_IRQ, IRQT_RISING);
+
+#if 0
+  /* TODO: write the drivers to use these events */
+  /*  ser1 */
+  set_irq_type(GPIO_JORNADA820_POWERD_IRQ, IRQT_PROBE);
+  /*  serial port */
+  set_irq_type(GPIO_JORNADA820_SERIAL_IRQ, IRQT_PROBE);
+  /*  serial what ? */
+  set_irq_type(GPIO_JORNADA820_DTRDSR_IRQ, IRQT_PROBE);
+  /*  ledbutton */
+  set_irq_type(GPIO_JORNADA820_LEDBUTTON_IRQ, IRQT_RISING);
+#endif
+
+#if 0
+  /* TODO: This should reset the SA1101 
+  GPDR |= GPIO_GPIO20;
+  GPSR = GPIO_GPIO20;
+  udelay(1);
+  GPCR = GPIO_GPIO20;
+  udelay(1);
+  */
+#endif
+
+  /* ------------------- */
+  /* Initialize the SSP  */
+  /* ------------------- */
+  
+  Ser4MCCR0 &= ~MCCR0_MCE;       /* disable MCP */
+  PPAR |= PPAR_SSPGPIO;          /* assign alternate pins to SSP */
+  GAFR |= (GPIO_GPIO10 | GPIO_GPIO11 | GPIO_GPIO12 | GPIO_GPIO13);
+  GPDR |= (GPIO_GPIO10 | GPIO_GPIO12 | GPIO_GPIO13);
+  GPDR &= ~GPIO_GPIO11;
+
+  if (ssp_init()) printk("ssp_init() failed.\n");
+
+  /* we mess with the SSCR0 directly, because there is no ssp_setreg() API, that
+     can be called by the keyboard driver */
+
+    /* 8 bit, Motorola, enable, 460800 bit rate */
+  Ser4SSCR0 = SSCR0_DataSize(8)+SSCR0_Motorola+SSCR0_SSE+SSCR0_SerClkDiv(8);
+//  Ser4SSCR1 = SSCR1_RIE | SSCR1_SClkIactH | SSCR1_SClk1_2P;
+
+  ssp_enable();
+
+  Ser4MCCR0 |= MCCR0_MCE;       /* reenable MCP */
+				/* XXX - Not in matan's kernel(?) */
+
+  /* Initialize the 1101. */
+  GAFR |= GPIO_32_768kHz;
+  GPDR |= GPIO_32_768kHz;
+
+  TUCR = TUCR_3_6864MHz; /* */
+
+//  sa1101_probe(sa1101_device); // should be done by the device management
+  sa1101_wake();
+  sa1101_init_irq (GPIO_JORNADA820_SA1101_CHAIN_IRQ);
+
+  return platform_add_devices(devices, ARRAY_SIZE(devices));
+
+}
+
+arch_initcall(jornada820_init);
+
+/* *********************************************************************** */
+/*              map Jornada 820-specific IO (think SA1101)                 */
+/* *********************************************************************** */
+
+static struct map_desc jornada820_io_desc[] __initdata = {
+  /* virtual     physical    length      type */
+  { 0xf4000000, JORNADA820_SA1101_BASE, 0x00400000, MT_DEVICE } /* SA-1101 */
+};
+
+static void __init jornada820_map_io(void)
+{
+  sa1100_map_io();
+  iotable_init(jornada820_io_desc, ARRAY_SIZE(jornada820_io_desc));
+  
+  /* rs232 out */
+  sa1100_register_uart(0, 3);
+
+  /* internal diag. */
+  sa1100_register_uart(1, 1);
+}
+
+MACHINE_START(JORNADA820, "HP Jornada 820")
+     BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
+     BOOT_PARAMS(0xc0200100)
+     MAPIO(jornada820_map_io)
+     INITIRQ(sa1100_init_irq)
+//   .init_machine   = jornada820_init,
+     .timer          = &sa1100_timer,
+     SOFT_REBOOT
+     MAINTAINER("http://jornada820.sourceforge.net/")
+MACHINE_END