| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1299596817-19879-6-git-send-email-jamie@jamieiles.com>
Date: Tue, 8 Mar 2011 15:06:57 +0000
From: Jamie Iles <jamie@...ieiles.com>
To: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc: Jamie Iles <jamie@...ieiles.com>
Subject: [PATCHv6 5/5] picoxcell: support for the PC7302 development board
The PC7302 development board is capable of taking both PC3X2 and PC3X3
devices and features NOR flash, NAND flash, SPI NOR flash a serial
console, 100Mb Ethernet and a number of picoArray peripherals.
This patch provides initial support for running on the PC7302 board.
v4:
- reduce to the bare minimum for NOR flash booting.
v3:
- remove redundant __init declarations.
v2:
- multiplex the NAND CLE pin by pad name.
- convert to __raw_ io accessors.
Signed-off-by: Jamie Iles <jamie@...ieiles.com>
---
arch/arm/mach-picoxcell/Kconfig | 11 +++
arch/arm/mach-picoxcell/Makefile | 1 +
arch/arm/mach-picoxcell/board_pc7302.c | 109 ++++++++++++++++++++++++++++++++
3 files changed, 121 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-picoxcell/board_pc7302.c
diff --git a/arch/arm/mach-picoxcell/Kconfig b/arch/arm/mach-picoxcell/Kconfig
index 7b74a45..9e08542 100644
--- a/arch/arm/mach-picoxcell/Kconfig
+++ b/arch/arm/mach-picoxcell/Kconfig
@@ -1,2 +1,13 @@
if ARCH_PICOXCELL
+
+comment "Picochip picoXcell board selection"
+
+config BOARD_PC7302
+ bool "Support PC7302 Board"
+ default y
+ help
+ Include support for the picoChip PC7302 platform. This platform is
+ can take any of the PC3X2 or PC3X3 devices and includes SPI NOR
+ flash, parallel NOR flash and NAND flash.
+
endif
diff --git a/arch/arm/mach-picoxcell/Makefile b/arch/arm/mach-picoxcell/Makefile
index f6fc8de..69a9e6b 100644
--- a/arch/arm/mach-picoxcell/Makefile
+++ b/arch/arm/mach-picoxcell/Makefile
@@ -2,3 +2,4 @@ obj-y := picoxcell_core.o io.o axi2cfg.o \
time.o \
devices.o \
clk.o
+obj-$(CONFIG_BOARD_PC7302) += board_pc7302.o
diff --git a/arch/arm/mach-picoxcell/board_pc7302.c b/arch/arm/mach-picoxcell/board_pc7302.c
new file mode 100644
index 0000000..6d2b5e0
--- /dev/null
+++ b/arch/arm/mach-picoxcell/board_pc7302.c
@@ -0,0 +1,109 @@
+/*
+ * linux/arch/arm/mach-picoxcell/board_pc7302.c
+ *
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * 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.
+ *
+ * All enquiries to support@...ochip.com
+ */
+#include <linux/gpio.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/physmap.h>
+#include <linux/spi/flash.h>
+
+#include <mach/hardware.h>
+#include <asm/leds.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+#include "picoxcell_core.h"
+
+static long pc7302_panic_blink(int state)
+{
+ __raw_writel(state ? 0xFF : 0, IO_ADDRESS(PICOXCELL_GPIO_BASE +
+ GPIO_SW_PORT_C_DR_REG_OFFSET));
+ return 0;
+}
+
+static void pc7302_panic_init(void)
+{
+ /*
+ * We have a BOOT_ERROR pin on PC7302. Reuse that for signalling when
+ * the kernel panics. There is only 1 bit wired up to port C but it
+ * won't hurt to configure all of them.
+ */
+ __raw_writel(0xF, IO_ADDRESS(PICOXCELL_GPIO_BASE +
+ GPIO_SW_PORT_C_DDR_REG_OFFSET));
+ __raw_writel(0x0, IO_ADDRESS(PICOXCELL_GPIO_BASE +
+ GPIO_SW_PORT_C_CTL_REG_OFFSET));
+
+ panic_blink = pc7302_panic_blink;
+}
+
+static struct mtd_partition pc7302_nor_partitions[] = {
+ {
+ .name = "Boot",
+ .size = SZ_128K,
+ .offset = 0,
+ },
+ {
+ .name = "Boot Environment",
+ .size = SZ_128K,
+ .offset = MTDPART_OFS_APPEND,
+ },
+ {
+ .name = "Kernel",
+ .size = SZ_4M,
+ .offset = MTDPART_OFS_APPEND,
+ },
+ {
+ .name = "Application",
+ .size = MTDPART_SIZ_FULL,
+ .offset = MTDPART_OFS_APPEND,
+ },
+};
+
+static struct physmap_flash_data pc7302_nor_flash_data = {
+ .width = 1,
+ .parts = pc7302_nor_partitions,
+ .nr_parts = ARRAY_SIZE(pc7302_nor_partitions)
+};
+
+static struct resource pc7302_nor_resource = {
+ .start = PICOXCELL_FLASH_BASE,
+ .end = PICOXCELL_FLASH_BASE + SZ_128M - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device pc7302_nor = {
+ .name = "physmap-flash",
+ .id = -1,
+ .dev.platform_data = &pc7302_nor_flash_data,
+ .resource = &pc7302_nor_resource,
+ .num_resources = 1,
+};
+
+static void pc7302_init_nor(void)
+{
+ platform_device_register(&pc7302_nor);
+}
+
+static void __init pc7302_init(void)
+{
+ picoxcell_core_init();
+ pc7302_init_nor();
+ pc7302_panic_init();
+}
+
+MACHINE_START(PC7302, "PC7302")
+ .map_io = picoxcell_map_io,
+ .init_irq = picoxcell_init_irq,
+ .init_early = picoxcell_init_early,
+ .timer = &picoxcell_sys_timer,
+ .init_machine = pc7302_init,
+MACHINE_END
--
1.7.4
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists