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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/mach-sa1100/badge4.c
downloadconfigs-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/arm/mach-sa1100/badge4.c')
-rw-r--r--arch/arm/mach-sa1100/badge4.c293
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diff --git a/arch/arm/mach-sa1100/badge4.c b/arch/arm/mach-sa1100/badge4.c
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+++ b/arch/arm/mach-sa1100/badge4.c
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+/*
+ * linux/arch/arm/mach-sa1100/badge4.c
+ *
+ * BadgePAD 4 specific initialization
+ *
+ * Tim Connors <connors@hpl.hp.com>
+ * Christopher Hoover <ch@hpl.hp.com>
+ *
+ * Copyright (C) 2002 Hewlett-Packard Company
+ *
+ * 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/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/tty.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/errno.h>
+
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/setup.h>
+#include <asm/arch/irqs.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+#include <asm/mach/map.h>
+#include <asm/hardware/sa1111.h>
+#include <asm/mach/serial_sa1100.h>
+
+#include <asm/arch/badge4.h>
+
+#include "generic.h"
+
+static struct resource sa1111_resources[] = {
+ [0] = {
+ .start = BADGE4_SA1111_BASE,
+ .end = BADGE4_SA1111_BASE + 0x00001fff,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = BADGE4_IRQ_GPIO_SA1111,
+ .end = BADGE4_IRQ_GPIO_SA1111,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static u64 sa1111_dmamask = 0xffffffffUL;
+
+static struct platform_device sa1111_device = {
+ .name = "sa1111",
+ .id = 0,
+ .dev = {
+ .dma_mask = &sa1111_dmamask,
+ .coherent_dma_mask = 0xffffffff,
+ },
+ .num_resources = ARRAY_SIZE(sa1111_resources),
+ .resource = sa1111_resources,
+};
+
+static struct platform_device *devices[] __initdata = {
+ &sa1111_device,
+};
+
+static int __init badge4_sa1111_init(void)
+{
+ /*
+ * Ensure that the memory bus request/grant signals are setup,
+ * and the grant is held in its inactive state
+ */
+ sa1110_mb_disable();
+
+ /*
+ * Probe for SA1111.
+ */
+ return platform_add_devices(devices, ARRAY_SIZE(devices));
+}
+
+
+/*
+ * 1 x Intel 28F320C3 Advanced+ Boot Block Flash (32 Mi bit)
+ * Eight 4 KiW Parameter Bottom Blocks (64 KiB)
+ * Sixty-three 32 KiW Main Blocks (4032 Ki b)
+ *
+ * <or>
+ *
+ * 1 x Intel 28F640C3 Advanced+ Boot Block Flash (64 Mi bit)
+ * Eight 4 KiW Parameter Bottom Blocks (64 KiB)
+ * One-hundred-twenty-seven 32 KiW Main Blocks (8128 Ki b)
+ */
+static struct mtd_partition badge4_partitions[] = {
+ {
+ .name = "BLOB boot loader",
+ .offset = 0,
+ .size = 0x0000A000
+ }, {
+ .name = "params",
+ .offset = MTDPART_OFS_APPEND,
+ .size = 0x00006000
+ }, {
+ .name = "root",
+ .offset = MTDPART_OFS_APPEND,
+ .size = MTDPART_SIZ_FULL
+ }
+};
+
+static struct flash_platform_data badge4_flash_data = {
+ .map_name = "cfi_probe",
+ .parts = badge4_partitions,
+ .nr_parts = ARRAY_SIZE(badge4_partitions),
+};
+
+static struct resource badge4_flash_resource = {
+ .start = SA1100_CS0_PHYS,
+ .end = SA1100_CS0_PHYS + SZ_64M - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+static int five_v_on __initdata = 0;
+
+static int __init five_v_on_setup(char *ignore)
+{
+ five_v_on = 1;
+ return 1;
+}
+__setup("five_v_on", five_v_on_setup);
+
+
+static int __init badge4_init(void)
+{
+ int ret;
+
+ if (!machine_is_badge4())
+ return -ENODEV;
+
+ /* LCD */
+ GPCR = (BADGE4_GPIO_LGP2 | BADGE4_GPIO_LGP3 |
+ BADGE4_GPIO_LGP4 | BADGE4_GPIO_LGP5 |
+ BADGE4_GPIO_LGP6 | BADGE4_GPIO_LGP7 |
+ BADGE4_GPIO_LGP8 | BADGE4_GPIO_LGP9 |
+ BADGE4_GPIO_GPA_VID | BADGE4_GPIO_GPB_VID |
+ BADGE4_GPIO_GPC_VID);
+ GPDR &= ~BADGE4_GPIO_INT_VID;
+ GPDR |= (BADGE4_GPIO_LGP2 | BADGE4_GPIO_LGP3 |
+ BADGE4_GPIO_LGP4 | BADGE4_GPIO_LGP5 |
+ BADGE4_GPIO_LGP6 | BADGE4_GPIO_LGP7 |
+ BADGE4_GPIO_LGP8 | BADGE4_GPIO_LGP9 |
+ BADGE4_GPIO_GPA_VID | BADGE4_GPIO_GPB_VID |
+ BADGE4_GPIO_GPC_VID);
+
+ /* SDRAM SPD i2c */
+ GPCR = (BADGE4_GPIO_SDSDA | BADGE4_GPIO_SDSCL);
+ GPDR |= (BADGE4_GPIO_SDSDA | BADGE4_GPIO_SDSCL);
+
+ /* uart */
+ GPCR = (BADGE4_GPIO_UART_HS1 | BADGE4_GPIO_UART_HS2);
+ GPDR |= (BADGE4_GPIO_UART_HS1 | BADGE4_GPIO_UART_HS2);
+
+ /* CPLD muxsel0 input for mux/adc chip select */
+ GPCR = BADGE4_GPIO_MUXSEL0;
+ GPDR |= BADGE4_GPIO_MUXSEL0;
+
+ /* test points: J5, J6 as inputs, J7 outputs */
+ GPDR &= ~(BADGE4_GPIO_TESTPT_J5 | BADGE4_GPIO_TESTPT_J6);
+ GPCR = BADGE4_GPIO_TESTPT_J7;
+ GPDR |= BADGE4_GPIO_TESTPT_J7;
+
+ /* 5V supply rail. */
+ GPCR = BADGE4_GPIO_PCMEN5V; /* initially off */
+ GPDR |= BADGE4_GPIO_PCMEN5V;
+
+ /* CPLD sdram type inputs; set up by blob */
+ //GPDR |= (BADGE4_GPIO_SDTYP1 | BADGE4_GPIO_SDTYP0);
+ printk(KERN_DEBUG __FILE__ ": SDRAM CPLD typ1=%d typ0=%d\n",
+ !!(GPLR & BADGE4_GPIO_SDTYP1),
+ !!(GPLR & BADGE4_GPIO_SDTYP0));
+
+ /* SA1111 reset pin; set up by blob */
+ //GPSR = BADGE4_GPIO_SA1111_NRST;
+ //GPDR |= BADGE4_GPIO_SA1111_NRST;
+
+
+ /* power management cruft */
+ PGSR = 0;
+ PWER = 0;
+ PCFR = 0;
+ PSDR = 0;
+
+ PWER |= PWER_GPIO26; /* wake up on an edge from TESTPT_J5 */
+ PWER |= PWER_RTC; /* wake up if rtc fires */
+
+ /* drive sa1111_nrst during sleep */
+ PGSR |= BADGE4_GPIO_SA1111_NRST;
+ /* drive CPLD as is during sleep */
+ PGSR |= (GPLR & (BADGE4_GPIO_SDTYP0|BADGE4_GPIO_SDTYP1));
+
+
+ /* Now bring up the SA-1111. */
+ ret = badge4_sa1111_init();
+ if (ret < 0)
+ printk(KERN_ERR
+ "%s: SA-1111 initialization failed (%d)\n",
+ __FUNCTION__, ret);
+
+
+ /* maybe turn on 5v0 from the start */
+ badge4_set_5V(BADGE4_5V_INITIALLY, five_v_on);
+
+ sa11x0_set_flash_data(&badge4_flash_data, &badge4_flash_resource, 1);
+
+ return 0;
+}
+
+arch_initcall(badge4_init);
+
+
+static unsigned badge4_5V_bitmap = 0;
+
+void badge4_set_5V(unsigned subsystem, int on)
+{
+ unsigned long flags;
+ unsigned old_5V_bitmap;
+
+ local_irq_save(flags);
+
+ old_5V_bitmap = badge4_5V_bitmap;
+
+ if (on) {
+ badge4_5V_bitmap |= subsystem;
+ } else {
+ badge4_5V_bitmap &= ~subsystem;
+ }
+
+ /* detect on->off and off->on transitions */
+ if ((!old_5V_bitmap) && (badge4_5V_bitmap)) {
+ /* was off, now on */
+ printk(KERN_INFO "%s: enabling 5V supply rail\n", __FUNCTION__);
+ GPSR = BADGE4_GPIO_PCMEN5V;
+ } else if ((old_5V_bitmap) && (!badge4_5V_bitmap)) {
+ /* was on, now off */
+ printk(KERN_INFO "%s: disabling 5V supply rail\n", __FUNCTION__);
+ GPCR = BADGE4_GPIO_PCMEN5V;
+ }
+
+ local_irq_restore(flags);
+}
+EXPORT_SYMBOL(badge4_set_5V);
+
+
+static struct map_desc badge4_io_desc[] __initdata = {
+ /* virtual physical length type */
+ {0xf1000000, 0x08000000, 0x00100000, MT_DEVICE },/* SRAM bank 1 */
+ {0xf2000000, 0x10000000, 0x00100000, MT_DEVICE },/* SRAM bank 2 */
+ {0xf4000000, 0x48000000, 0x00100000, MT_DEVICE } /* SA-1111 */
+};
+
+static void
+badge4_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
+{
+ if (!state) {
+ Ser1SDCR0 |= SDCR0_UART;
+ }
+}
+
+static struct sa1100_port_fns badge4_port_fns __initdata = {
+ //.get_mctrl = badge4_get_mctrl,
+ //.set_mctrl = badge4_set_mctrl,
+ .pm = badge4_uart_pm,
+};
+
+static void __init badge4_map_io(void)
+{
+ sa1100_map_io();
+ iotable_init(badge4_io_desc, ARRAY_SIZE(badge4_io_desc));
+
+ sa1100_register_uart_fns(&badge4_port_fns);
+ sa1100_register_uart(0, 3);
+ sa1100_register_uart(1, 1);
+}
+
+MACHINE_START(BADGE4, "Hewlett-Packard Laboratories BadgePAD 4")
+ BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
+ BOOT_PARAMS(0xc0000100)
+ MAPIO(badge4_map_io)
+ INITIRQ(sa1100_init_irq)
+ .timer = &sa1100_timer,
+MACHINE_END