[ARM] pxa: add initial support for Cogent CSB726 board

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>

5 files changed, 355 insertions, 1 deletions

diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index 33214c1e0607..ff1872db5b3d 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -393,6 +393,14 @@ config PCM990_DISPLAY_NONE
 
 endchoice
 
+config MACH_CSB726
+        bool "Enable Cogent CSB726 System On a Module"
+        select PXA27x
+        select IWMMXT
+        help
+          Say Y here if you intend to run this kernel on a Cogent
+          CSB726 System On Module.
+
 config PXA_EZX
         bool "Motorola EZX Platform"
         select PXA27x
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index 361fcfa7531a..96a72f02c136 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -75,6 +75,7 @@ obj-$(CONFIG_MACH_CM_X300)      += cm-x300.o
 obj-$(CONFIG_PXA_EZX)           += ezx.o
 
 obj-$(CONFIG_MACH_INTELMOTE2)   += imote2.o
+obj-$(CONFIG_MACH_CSB726)       += csb726.o
 
 # Support for blinky lights
 led-y := leds.o
diff --git a/arch/arm/mach-pxa/csb726.c b/arch/arm/mach-pxa/csb726.c
new file mode 100644
index 000000000000..2b289f83a61a
--- /dev/null
+++ b/arch/arm/mach-pxa/csb726.c
@@ -0,0 +1,318 @@
+/*
+ *  Support for Cogent CSB726
+ *
+ *  Copyright (c) 2008 Dmitry Eremin-Solenikov
+ *
+ *  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/init.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mtd/partitions.h>
+#include <linux/sm501.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <mach/csb726.h>
+#include <mach/mfp-pxa27x.h>
+#include <mach/i2c.h>
+#include <mach/mmc.h>
+#include <mach/ohci.h>
+#include <mach/pxa2xx-regs.h>
+
+#include "generic.h"
+#include "devices.h"
+
+/*
+ * n/a: 2, 5, 6, 7, 8, 23, 24, 25, 26, 27, 87, 88, 89,
+ * nu: 58 -- 77, 90, 91, 93, 102, 105-108, 114-116,
+ * XXX: 21,
+ * XXX: 79 CS_3 for LAN9215 or PSKTSEL on R2, R3
+ * XXX: 33 CS_5 for LAN9215 on R1
+ */
+
+static unsigned long csb726_pin_config[] = {
+        GPIO78_nCS_2, /* EXP_CS */
+        GPIO79_nCS_3, /* SMSC9215 */
+        GPIO80_nCS_4, /* SM501 */
+
+        GPIO52_GPIO, /* #SMSC9251 int */
+        GPIO53_GPIO, /* SM501 int */
+
+        GPIO1_GPIO, /* GPIO0 */
+        GPIO11_GPIO, /* GPIO1 */
+        GPIO9_GPIO, /* GPIO2 */
+        GPIO10_GPIO, /* GPIO3 */
+        GPIO16_PWM0_OUT, /* or GPIO4 */
+        GPIO17_PWM1_OUT, /* or GPIO5 */
+        GPIO94_GPIO, /* GPIO6 */
+        GPIO95_GPIO, /* GPIO7 */
+        GPIO96_GPIO, /* GPIO8 */
+        GPIO97_GPIO, /* GPIO9 */
+        GPIO15_GPIO, /* EXP_IRQ */
+        GPIO18_RDY, /* EXP_WAIT */
+
+        GPIO0_GPIO, /* PWR_INT */
+        GPIO104_GPIO, /* PWR_OFF */
+
+        GPIO12_GPIO, /* touch irq */
+
+        GPIO13_SSP2_TXD,
+        GPIO14_SSP2_SFRM,
+        MFP_CFG_OUT(GPIO19, AF1, DRIVE_LOW),/* SSP2_SYSCLK */
+        GPIO22_SSP2_SCLK,
+
+        GPIO81_SSP3_TXD,
+        GPIO82_SSP3_RXD,
+        GPIO83_SSP3_SFRM,
+        GPIO84_SSP3_SCLK,
+
+        GPIO20_GPIO, /* SDIO int */
+        GPIO32_MMC_CLK,
+        GPIO92_MMC_DAT_0,
+        GPIO109_MMC_DAT_1,
+        GPIO110_MMC_DAT_2,
+        GPIO111_MMC_DAT_3,
+        GPIO112_MMC_CMD,
+        GPIO100_GPIO, /* SD CD */
+        GPIO101_GPIO, /* SD WP */
+
+        GPIO28_AC97_BITCLK,
+        GPIO29_AC97_SDATA_IN_0,
+        GPIO30_AC97_SDATA_OUT,
+        GPIO31_AC97_SYNC,
+        GPIO113_AC97_nRESET,
+
+        GPIO34_FFUART_RXD,
+        GPIO35_FFUART_CTS,
+        GPIO36_FFUART_DCD,
+        GPIO37_FFUART_DSR,
+        GPIO38_FFUART_RI,
+        GPIO39_FFUART_TXD,
+        GPIO40_FFUART_DTR,
+        GPIO41_FFUART_RTS,
+
+        GPIO42_BTUART_RXD,
+        GPIO43_BTUART_TXD,
+        GPIO44_BTUART_CTS,
+        GPIO45_BTUART_RTS,
+
+        GPIO46_STUART_RXD,
+        GPIO47_STUART_TXD,
+
+        GPIO48_nPOE,
+        GPIO49_nPWE,
+        GPIO50_nPIOR,
+        GPIO51_nPIOW,
+        GPIO54_nPCE_2,
+        GPIO55_nPREG,
+        GPIO56_nPWAIT,
+        GPIO57_nIOIS16, /* maybe unused */
+        GPIO85_nPCE_1,
+        GPIO98_GPIO, /* CF IRQ */
+        GPIO99_GPIO, /* CF CD */
+        GPIO103_GPIO, /* Reset */
+
+        GPIO117_I2C_SCL,
+        GPIO118_I2C_SDA,
+};
+
+static struct pxamci_platform_data csb726_mci_data;
+
+static int csb726_mci_init(struct device *dev,
+                irq_handler_t detect, void *data)
+{
+        int err;
+
+        csb726_mci_data.detect_delay = msecs_to_jiffies(500);
+
+        err = gpio_request(CSB726_GPIO_MMC_DETECT, "MMC detect");
+        if (err)
+                goto err_det_req;
+
+        err = gpio_direction_input(CSB726_GPIO_MMC_DETECT);
+        if (err)
+                goto err_det_dir;
+
+        err = gpio_request(CSB726_GPIO_MMC_RO, "MMC ro");
+        if (err)
+                goto err_ro_req;
+
+        err = gpio_direction_input(CSB726_GPIO_MMC_RO);
+        if (err)
+                goto err_ro_dir;
+
+        err = request_irq(gpio_to_irq(CSB726_GPIO_MMC_DETECT), detect,
+                        IRQF_DISABLED, "MMC card detect", data);
+        if (err)
+                goto err_irq;
+
+        return 0;
+
+err_irq:
+err_ro_dir:
+        gpio_free(CSB726_GPIO_MMC_RO);
+err_ro_req:
+err_det_dir:
+        gpio_free(CSB726_GPIO_MMC_DETECT);
+err_det_req:
+        return err;
+}
+
+static int csb726_mci_get_ro(struct device *dev)
+{
+        return gpio_get_value(CSB726_GPIO_MMC_RO);
+}
+
+static void csb726_mci_exit(struct device *dev, void *data)
+{
+        free_irq(gpio_to_irq(CSB726_GPIO_MMC_DETECT), data);
+        gpio_free(CSB726_GPIO_MMC_RO);
+        gpio_free(CSB726_GPIO_MMC_DETECT);
+}
+
+static struct pxamci_platform_data csb726_mci = {
+        .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
+        .init           = csb726_mci_init,
+        .get_ro         = csb726_mci_get_ro,
+        /* FIXME setpower */
+        .exit           = csb726_mci_exit,
+};
+
+static struct pxaohci_platform_data csb726_ohci_platform_data = {
+        .port_mode      = PMM_NPS_MODE,
+        .flags          = ENABLE_PORT1 | NO_OC_PROTECTION,
+};
+
+static struct mtd_partition csb726_flash_partitions[] = {
+        {
+                .name           = "Bootloader",
+                .offset         = 0,
+                .size           = CSB726_FLASH_uMON,
+                .mask_flags     = MTD_WRITEABLE  /* force read-only */
+        },
+        {
+                .name           = "root",
+                .offset         = MTDPART_OFS_APPEND,
+                .size           = MTDPART_SIZ_FULL,
+        }
+};
+
+static struct physmap_flash_data csb726_flash_data = {
+        .width          = 2,
+        .parts          = csb726_flash_partitions,
+        .nr_parts       = ARRAY_SIZE(csb726_flash_partitions),
+};
+
+static struct resource csb726_flash_resources[] = {
+        {
+                .start          = PXA_CS0_PHYS,
+                .end            = PXA_CS0_PHYS + CSB726_FLASH_SIZE - 1 ,
+                .flags          = IORESOURCE_MEM,
+        }
+};
+
+static struct platform_device csb726_flash = {
+        .name           = "physmap-flash",
+        .dev            = {
+                .platform_data  = &csb726_flash_data,
+        },
+        .resource       = csb726_flash_resources,
+        .num_resources  = ARRAY_SIZE(csb726_flash_resources),
+};
+
+static struct resource csb726_sm501_resources[] = {
+        {
+                .start          = PXA_CS4_PHYS,
+                .end            = PXA_CS4_PHYS + SZ_8M - 1,
+                .flags          = IORESOURCE_MEM,
+                .name           = "sm501-localmem",
+        },
+        {
+                .start          = PXA_CS4_PHYS + SZ_64M - SZ_2M,
+                .end            = PXA_CS4_PHYS + SZ_64M - 1,
+                .flags          = IORESOURCE_MEM,
+                .name           = "sm501-regs",
+        },
+        {
+                .start          = CSB726_IRQ_SM501,
+                .end            = CSB726_IRQ_SM501,
+                .flags          = IORESOURCE_IRQ,
+        },
+};
+
+static struct sm501_initdata csb726_sm501_initdata = {
+/*      .devices        = SM501_USE_USB_HOST, */
+        .devices        = SM501_USE_USB_HOST | SM501_USE_UART0 | SM501_USE_UART1,
+};
+
+static struct sm501_platdata csb726_sm501_platdata = {
+        .init           = &csb726_sm501_initdata,
+};
+
+static struct platform_device csb726_sm501 = {
+        .name           = "sm501",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(csb726_sm501_resources),
+        .resource       = csb726_sm501_resources,
+        .dev            = {
+                .platform_data = &csb726_sm501_platdata,
+        },
+};
+
+static struct resource csb726_lan_resources[] = {
+        {
+                .start  = PXA_CS3_PHYS,
+                .end    = PXA_CS3_PHYS + SZ_64K - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        {
+                .start  = CSB726_IRQ_LAN,
+                .end    = CSB726_IRQ_LAN,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device csb726_lan = {
+        .name           = "smc911x",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(csb726_lan_resources),
+        .resource       = csb726_lan_resources,
+};
+
+static struct platform_device *devices[] __initdata = {
+        &csb726_flash,
+        &csb726_sm501,
+        &csb726_lan,
+};
+
+static void __init csb726_init(void)
+{
+        pxa2xx_mfp_config(ARRAY_AND_SIZE(csb726_pin_config));
+/*      MSC1 = 0x7ffc3ffc; *//* LAN9215/EXP_CS */
+/*      MSC2 = 0x06697ff4; *//* none/SM501 */
+        MSC2 = (MSC2 & ~0xffff) | 0x7ff4; /* SM501 */
+
+        pxa_set_i2c_info(NULL);
+        pxa27x_set_i2c_power_info(NULL);
+        pxa_set_mci_info(&csb726_mci);
+        pxa_set_ohci_info(&csb726_ohci_platform_data);
+
+        platform_add_devices(devices, ARRAY_SIZE(devices));
+}
+
+MACHINE_START(CSB726, "Cogent CSB726")
+        .phys_io        = 0x40000000,
+        .boot_params    = 0xa0000100,
+        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
+        .map_io         = pxa_map_io,
+        .init_irq       = pxa27x_init_irq,
+        .init_machine   = csb726_init,
+        .timer          = &pxa_timer,
+MACHINE_END
diff --git a/arch/arm/mach-pxa/include/mach/csb726.h b/arch/arm/mach-pxa/include/mach/csb726.h
new file mode 100644
index 000000000000..747ab1a71f2f
--- /dev/null
+++ b/arch/arm/mach-pxa/include/mach/csb726.h
@@ -0,0 +1,26 @@
+/*
+ *  Support for Cogent CSB726
+ *
+ *  Copyright (c) 2008 Dmitry Baryshkov
+ *
+ *  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.
+ *
+ */
+#ifndef CSB726_H
+#define CSB726_H
+
+#define CSB726_GPIO_IRQ_LAN     52
+#define CSB726_GPIO_IRQ_SM501   53
+#define CSB726_GPIO_MMC_DETECT  100
+#define CSB726_GPIO_MMC_RO      101
+
+#define CSB726_FLASH_SIZE       (64 * 1024 * 1024)
+#define CSB726_FLASH_uMON       (8 * 1024 * 1024)
+
+#define CSB726_IRQ_LAN          gpio_to_irq(CSB726_GPIO_IRQ_LAN)
+#define CSB726_IRQ_SM501        gpio_to_irq(CSB726_GPIO_IRQ_SM501)
+
+#endif
+
diff --git a/arch/arm/mach-pxa/include/mach/uncompress.h b/arch/arm/mach-pxa/include/mach/uncompress.h
index f4b029c03957..5706cea95d11 100644
--- a/arch/arm/mach-pxa/include/mach/uncompress.h
+++ b/arch/arm/mach-pxa/include/mach/uncompress.h
@@ -35,7 +35,8 @@ static inline void flush(void)
 
 static inline void arch_decomp_setup(void)
 {
-        if (machine_is_littleton() || machine_is_intelmote2())
+        if (machine_is_littleton() || machine_is_intelmote2()
+                        || machine_is_csb726())
                 UART = STUART;
 }