[ARM] 3466/1: [2/3] Support for Philips PNX4008 platform: chip support

Patch from Vitaly Wool

This patch adds basic chip support for PNX4008 ARM platform.
It's basically the same as the previous one, but with the rmk's
comments taken into account.

Signed-off-by: Vitaly Wool <vwool@ru.mvista.com>
Signed-off-by: Dmitry Pervushin <dpervushin@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 207 insertions, 0 deletions

diff --git a/arch/arm/mach-pnx4008/core.c b/arch/arm/mach-pnx4008/core.c
new file mode 100644
index 00000000000..ba91daad64f
--- /dev/null
+++ b/arch/arm/mach-pnx4008/core.c
@@ -0,0 +1,207 @@
+/*
+ * arch/arm/mach-pnx4008/core.c
+ *
+ * PNX4008 core startup code
+ *
+ * Authors: Vitaly Wool, Dmitry Chigirev,
+ * Grigory Tolstolytkin, Dmitry Pervushin <source@mvista.com>
+ *
+ * Based on reference code received from Philips:
+ * Copyright (C) 2003 Philips Semiconductors
+ *
+ * 2005 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/serial_8250.h>
+#include <linux/device.h>
+#include <linux/spi/spi.h>
+
+#include <asm/hardware.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/setup.h>
+#include <asm/mach-types.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+#include <asm/system.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/map.h>
+#include <asm/mach/time.h>
+
+#include <asm/arch/irq.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/dma.h>
+
+struct resource spipnx_0_resources[] = {
+	{
+		.start = PNX4008_SPI1_BASE,
+		.end = PNX4008_SPI1_BASE + SZ_4K,
+		.flags = IORESOURCE_MEM,
+	}, {
+		.start = PER_SPI1_REC_XMIT,
+		.flags = IORESOURCE_DMA,
+	}, {
+		.start = SPI1_INT,
+		.flags = IORESOURCE_IRQ,
+	}, {
+		.flags = 0,
+	},
+};
+
+struct resource spipnx_1_resources[] = {
+	{
+		.start = PNX4008_SPI2_BASE,
+		.end = PNX4008_SPI2_BASE + SZ_4K,
+		.flags = IORESOURCE_MEM,
+	}, {
+		.start = PER_SPI2_REC_XMIT,
+		.flags = IORESOURCE_DMA,
+	}, {
+		.start = SPI2_INT,
+		.flags = IORESOURCE_IRQ,
+	}, {
+		.flags = 0,
+	}
+};
+
+static struct spi_board_info spi_board_info[] __initdata = {
+	{
+		.modalias	= "m25p80",
+		.max_speed_hz	= 1000000,
+		.bus_num	= 1,
+		.chip_select	= 0,
+	},
+};
+
+static struct platform_device spipnx_1 = {
+	.name = "spipnx",
+	.id = 1,
+	.num_resources = ARRAY_SIZE(spipnx_0_resources),
+	.resource = spipnx_0_resources,
+	.dev = {
+		.coherent_dma_mask = 0xFFFFFFFF,
+		},
+};
+
+static struct platform_device spipnx_2 = {
+	.name = "spipnx",
+	.id = 2,
+	.num_resources = ARRAY_SIZE(spipnx_1_resources),
+	.resource = spipnx_1_resources,
+	.dev = {
+		.coherent_dma_mask = 0xFFFFFFFF,
+		},
+};
+
+static struct plat_serial8250_port platform_serial_ports[] = {
+	{
+		.membase = (void *)__iomem(IO_ADDRESS(PNX4008_UART5_BASE)),
+		.mapbase = (unsigned long)PNX4008_UART5_BASE,
+		.irq = IIR5_INT,
+		.uartclk = PNX4008_UART_CLK,
+		.regshift = 2,
+		.iotype = UPIO_MEM,
+		.flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART | UPF_SKIP_TEST,
+	},
+	{
+		.membase = (void *)__iomem(IO_ADDRESS(PNX4008_UART3_BASE)),
+		.mapbase = (unsigned long)PNX4008_UART3_BASE,
+		.irq = IIR3_INT,
+		.uartclk = PNX4008_UART_CLK,
+		.regshift = 2,
+		.iotype = UPIO_MEM,
+		.flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART | UPF_SKIP_TEST,
+	 },
+	{}
+};
+
+static struct platform_device serial_device = {
+	.name = "serial8250",
+	.id = PLAT8250_DEV_PLATFORM,
+	.dev = {
+		.platform_data = &platform_serial_ports,
+	},
+};
+
+static struct platform_device *devices[] __initdata = {
+	&spipnx_1,
+	&spipnx_2,
+	&serial_device,
+};
+
+
+extern void pnx4008_uart_init(void);
+
+static void __init pnx4008_init(void)
+{
+	/*disable all START interrupt sources,
+	   and clear all START interrupt flags */
+	__raw_writel(0, START_INT_ER_REG(SE_PIN_BASE_INT));
+	__raw_writel(0, START_INT_ER_REG(SE_INT_BASE_INT));
+	__raw_writel(0xffffffff, START_INT_RSR_REG(SE_PIN_BASE_INT));
+	__raw_writel(0xffffffff, START_INT_RSR_REG(SE_INT_BASE_INT));
+
+	platform_add_devices(devices, ARRAY_SIZE(devices));
+	spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
+	/* Switch on the UART clocks */
+	pnx4008_uart_init();
+}
+
+static struct map_desc pnx4008_io_desc[] __initdata = {
+	{
+		.virtual 	= IO_ADDRESS(PNX4008_IRAM_BASE),
+		.pfn 		= __phys_to_pfn(PNX4008_IRAM_BASE),
+		.length		= SZ_64K,
+		.type 		= MT_DEVICE,
+	}, {
+		.virtual 	= IO_ADDRESS(PNX4008_NDF_FLASH_BASE),
+		.pfn 		= __phys_to_pfn(PNX4008_NDF_FLASH_BASE),
+		.length		= SZ_1M - SZ_128K,
+		.type 		= MT_DEVICE,
+	}, {
+		.virtual 	= IO_ADDRESS(PNX4008_JPEG_CONFIG_BASE),
+		.pfn 		= __phys_to_pfn(PNX4008_JPEG_CONFIG_BASE),
+		.length		= SZ_128K * 3,
+		.type 		= MT_DEVICE,
+	}, {
+		.virtual 	= IO_ADDRESS(PNX4008_DMA_CONFIG_BASE),
+		.pfn 		= __phys_to_pfn(PNX4008_DMA_CONFIG_BASE),
+		.length		= SZ_1M,
+		.type 		= MT_DEVICE,
+	}, {
+		.virtual 	= IO_ADDRESS(PNX4008_AHB2FAB_BASE),
+		.pfn 		= __phys_to_pfn(PNX4008_AHB2FAB_BASE),
+		.length		= SZ_1M,
+		.type 		= MT_DEVICE,
+	},
+};
+
+void __init pnx4008_map_io(void)
+{
+	iotable_init(pnx4008_io_desc, ARRAY_SIZE(pnx4008_io_desc));
+}
+
+extern struct sys_timer pnx4008_timer;
+
+MACHINE_START(PNX4008, "Philips PNX4008")
+	/* Maintainer: MontaVista Software Inc. */
+	.phys_io 		= 0x40090000,
+	.io_pg_offst 		= (0xf4090000 >> 18) & 0xfffc,
+	.boot_params		= 0x80000100,
+	.map_io 		= pnx4008_map_io,
+	.init_irq 		= pnx4008_init_irq,
+	.init_machine 		= pnx4008_init,
+	.timer 			= &pnx4008_timer,
+MACHINE_END