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authorGabor Juhos <juhosg@openwrt.org>2007-10-04 10:56:38 +0000
committerGabor Juhos <juhosg@openwrt.org>2007-10-04 10:56:38 +0000
commitf1e27efeddf41f343f28e27e3d99ba04f9b34c9b (patch)
tree523f83e2c10104386f2bc1cc1365a503b1c374da /target/linux/adm5120
parent3120f8a5c0c7be00ee96ba9117b58f9def394d75 (diff)
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NAND driver cleanups, thanks to Alexandros C. Couloumbis for testing * use generic NAND driver from now * add experimental support for RouterBOARD 150 NAND device
SVN-Revision: 9118
Diffstat (limited to 'target/linux/adm5120')
-rw-r--r--target/linux/adm5120/files/arch/mips/adm5120/boards/mikrotik.c159
-rw-r--r--target/linux/adm5120/files/arch/mips/adm5120/platform.c47
-rw-r--r--target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_defs.h2
-rw-r--r--target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_nand.h102
-rw-r--r--target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_platform.h14
-rw-r--r--target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_switch.h2
-rw-r--r--target/linux/adm5120/router_le/config-2.6.224
7 files changed, 292 insertions, 38 deletions
diff --git a/target/linux/adm5120/files/arch/mips/adm5120/boards/mikrotik.c b/target/linux/adm5120/files/arch/mips/adm5120/boards/mikrotik.c
index cec57f7e94..fee9db8031 100644
--- a/target/linux/adm5120/files/arch/mips/adm5120/boards/mikrotik.c
+++ b/target/linux/adm5120/files/arch/mips/adm5120/boards/mikrotik.c
@@ -1,11 +1,18 @@
/*
* $Id$
*
- * Mikrotik RouterBOARDs 1xx series
+ * Mikrotik RouterBOARD 1xx series
*
* Copyright (C) 2007 OpenWrt.org
* Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
*
+ * NAND initialization code was based on a driver for Linux 2.6.19+ which
+ * was derived from the driver for Linux 2.4.xx published by Mikrotik for
+ * their RouterBoard 1xx and 5xx series boards.
+ * Copyright (C) 2007 David Goodenough <david.goodenough@linkchoose.co.uk>
+ * Copyright (C) 2007 Florian Fainelli <florian@openwrt.org>
+ * The original Mikrotik code seems not to have a license.
+ *
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
@@ -25,13 +32,33 @@
#include <linux/kernel.h>
#include <linux/init.h>
+#include <linux/delay.h>
#include <asm/bootinfo.h>
#include <asm/gpio.h>
+#include <adm5120_defs.h>
+#include <adm5120_irq.h>
+#include <adm5120_nand.h>
#include <adm5120_board.h>
#include <adm5120_platform.h>
-#include <adm5120_irq.h>
+
+#define RB1XX_NAND_CHIP_DELAY 25
+
+#define RB150_NAND_BASE 0x1FC80000
+#define RB150_NAND_SIZE 1
+
+#define RB150_GPIO_NAND_READY ADM5120_GPIO_PIN0
+#define RB150_GPIO_NAND_NCE ADM5120_GPIO_PIN1
+#define RB150_GPIO_NAND_CLE ADM5120_GPIO_P2L2
+#define RB150_GPIO_NAND_ALE ADM5120_GPIO_P3L2
+
+#define RB150_NAND_DELAY 100
+
+#define RB150_NAND_WRITE(v) \
+ writeb((v),(void __iomem *)KSEG1ADDR(RB150_NAND_BASE))
+
+/*--------------------------------------------------------------------------*/
static struct adm5120_pci_irq rb1xx_pci_irqs[] __initdata = {
PCIIRQ(1, 0, 1, ADM5120_IRQ_PCI0),
@@ -39,7 +66,7 @@ static struct adm5120_pci_irq rb1xx_pci_irqs[] __initdata = {
PCIIRQ(3, 0, 1, ADM5120_IRQ_PCI2)
};
-static struct mtd_partition rb1xx_partitions[] = {
+static struct mtd_partition rb1xx_nor_partitions[] = {
{
.name = "booter",
.offset = 0,
@@ -52,24 +79,42 @@ static struct mtd_partition rb1xx_partitions[] = {
}
};
+static struct mtd_partition rb1xx_nand_partitions[] = {
+ {
+ .name = "kernel",
+ .offset = 0,
+ .size = 4 * 1024 * 1024,
+ } , {
+ .name = "rootfs",
+ .offset = MTDPART_OFS_NXTBLK,
+ .size = MTDPART_SIZ_FULL
+ }
+};
+
static struct platform_device *rb1xx_devices[] __initdata = {
&adm5120_flash0_device,
&adm5120_nand_device,
};
-static struct platform_device *rb150_devices[] __initdata = {
- &adm5120_flash0_device,
- /* TODO: nand device is not yet supported */
+/*
+ * We need to use the OLD Yaffs-1 OOB layout, otherwise the RB bootloader
+ * will not be able to find the kernel that we load. So set the oobinfo
+ * when creating the partitions
+ */
+static struct nand_ecclayout rb1xx_nand_ecclayout = {
+ .eccbytes = 6,
+ .eccpos = { 8, 9, 10, 13, 14, 15 },
+ .oobavail = 9,
+ .oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
};
-static void __init rb1xx_setup(void)
-{
- /* setup data for flash0 device */
- adm5120_flash0_data.nr_parts = ARRAY_SIZE(rb1xx_partitions);
- adm5120_flash0_data.parts = rb1xx_partitions;
-
- /* TODO: setup mac address */
-}
+static struct resource rb150_nand_resource[] = {
+ [0] = {
+ .start = RB150_NAND_BASE,
+ .end = RB150_NAND_BASE + RB150_NAND_SIZE-1,
+ .flags = IORESOURCE_MEM,
+ },
+};
#if 0
/*
@@ -110,6 +155,86 @@ static unsigned char rb_vlans[6] __initdata = {
#define rb192_vlans rb_vlans
#endif
+/*--------------------------------------------------------------------------*/
+
+static int rb150_nand_ready(struct mtd_info *mtd) {
+
+ return gpio_get_value(RB150_GPIO_NAND_READY);
+}
+
+static void rb150_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
+ unsigned int ctrl)
+{
+ if (ctrl & NAND_CTRL_CHANGE) {
+ gpio_set_value(RB150_GPIO_NAND_CLE, (ctrl & NAND_CLE) ? 1 : 0);
+ gpio_set_value(RB150_GPIO_NAND_ALE, (ctrl & NAND_ALE) ? 1 : 0);
+ gpio_set_value(RB150_GPIO_NAND_NCE, (ctrl & NAND_NCE) ? 0 : 1);
+ }
+
+ udelay(RB150_NAND_DELAY);
+
+ if (cmd != NAND_CMD_NONE)
+ RB150_NAND_WRITE(cmd);
+}
+
+/*--------------------------------------------------------------------------*/
+
+static void __init rb1xx_mac_setup(void)
+{
+ /* TODO */
+}
+
+static void __init rb1xx_flash_setup(void)
+{
+ /* setup data for flash0 device */
+ adm5120_flash0_data.nr_parts = ARRAY_SIZE(rb1xx_nor_partitions);
+ adm5120_flash0_data.parts = rb1xx_nor_partitions;
+
+ /* setup data for NAND device */
+ adm5120_nand_data.chip.nr_chips = 1;
+ adm5120_nand_data.chip.nr_partitions = ARRAY_SIZE(rb1xx_nand_partitions);
+ adm5120_nand_data.chip.partitions = rb1xx_nand_partitions;
+ adm5120_nand_data.chip.ecclayout = &rb1xx_nand_ecclayout;
+ adm5120_nand_data.chip.chip_delay = RB1XX_NAND_CHIP_DELAY;
+ adm5120_nand_data.chip.options = NAND_NO_AUTOINCR;
+}
+
+static void __init rb1xx_setup(void)
+{
+ /* enable NAND flash interface */
+ adm5120_nand_enable();
+
+ /* initialize NAND chip */
+ adm5120_nand_set_spn(1);
+ adm5120_nand_set_wpn(0);
+
+ rb1xx_flash_setup();
+ rb1xx_mac_setup();
+}
+
+static void __init rb150_setup(void)
+{
+ /* setup GPIO pins for NAND flash chip */
+ gpio_request(RB150_GPIO_NAND_READY, "nand-ready");
+ gpio_direction_input(RB150_GPIO_NAND_READY);
+ gpio_request(RB150_GPIO_NAND_NCE, "nand-nce");
+ gpio_direction_output(RB150_GPIO_NAND_NCE, 1);
+ gpio_request(RB150_GPIO_NAND_CLE, "nand-cle");
+ gpio_direction_output(RB150_GPIO_NAND_CLE, 0);
+ gpio_request(RB150_GPIO_NAND_ALE, "nand-ale");
+ gpio_direction_output(RB150_GPIO_NAND_ALE, 0);
+
+ adm5120_nand_device.num_resources = ARRAY_SIZE(rb150_nand_resource);
+ adm5120_nand_device.resource = rb150_nand_resource;
+ adm5120_nand_data.ctrl.cmd_ctrl = rb150_nand_cmd_ctrl;
+ adm5120_nand_data.ctrl.dev_ready = rb150_nand_ready;
+
+ rb1xx_flash_setup();
+ rb1xx_mac_setup();
+}
+
+/*--------------------------------------------------------------------------*/
+
static struct adm5120_board rb111_board __initdata = {
.mach_type = MACH_ADM5120_RB_111,
.name = "Mikrotik RouterBOARD 111",
@@ -161,11 +286,11 @@ static struct adm5120_board rb133c_board __initdata = {
static struct adm5120_board rb150_board __initdata = {
.mach_type = MACH_ADM5120_RB_150,
.name = "Mikrotik RouterBOARD 150",
- .board_setup = rb1xx_setup,
+ .board_setup = rb150_setup,
.eth_num_ports = 5,
.eth_vlans = rb15x_vlans,
- .num_devices = ARRAY_SIZE(rb150_devices),
- .devices = rb150_devices,
+ .num_devices = ARRAY_SIZE(rb1xx_devices),
+ .devices = rb1xx_devices,
};
static struct adm5120_board rb153_board __initdata = {
diff --git a/target/linux/adm5120/files/arch/mips/adm5120/platform.c b/target/linux/adm5120/files/arch/mips/adm5120/platform.c
index 2a795c950e..175e1a5d89 100644
--- a/target/linux/adm5120/files/arch/mips/adm5120/platform.c
+++ b/target/linux/adm5120/files/arch/mips/adm5120/platform.c
@@ -32,14 +32,12 @@
#include <asm/bootinfo.h>
#include <asm/gpio.h>
-#include <asm/mach-adm5120/adm5120_defs.h>
-#include <asm/mach-adm5120/adm5120_info.h>
-#include <asm/mach-adm5120/adm5120_irq.h>
-#include <asm/mach-adm5120/adm5120_switch.h>
-#include <asm/mach-adm5120/adm5120_platform.h>
-
-static void adm5120_uart_set_mctrl(struct amba_device *dev, void __iomem *base,
- unsigned int mctrl);
+#include <adm5120_defs.h>
+#include <adm5120_info.h>
+#include <adm5120_irq.h>
+#include <adm5120_switch.h>
+#include <adm5120_nand.h>
+#include <adm5120_platform.h>
#if 1
/*
@@ -120,20 +118,23 @@ struct platform_device adm5120_flash1_device = {
/* NAND flash */
struct resource adm5120_nand_resource[] = {
[0] = {
- .start = ADM5120_SRAM1_BASE,
- .end = ADM5120_SRAM1_BASE+ADM5120_MPMC_SIZE-1,
+ .start = ADM5120_NAND_BASE,
+ .end = ADM5120_NAND_BASE + ADM5120_NAND_SIZE-1,
.flags = IORESOURCE_MEM,
},
};
-struct adm5120_nand_platform_data adm5120_nand_data;
+struct platform_nand_data adm5120_nand_data = {
+ .ctrl.dev_ready = adm5120_nand_ready,
+ .ctrl.cmd_ctrl = adm5120_nand_cmd_ctrl,
+};
struct platform_device adm5120_nand_device = {
- .name = "adm5120-nand",
+ .name = "gen_nand",
.id = -1,
- .dev.platform_data = &adm5120_nand_data,
.num_resources = ARRAY_SIZE(adm5120_nand_resource),
.resource = adm5120_nand_resource,
+ .dev.platform_data = &adm5120_nand_data,
};
/* built-in UARTs */
@@ -173,7 +174,25 @@ struct amba_device adm5120_uart1_device = {
.periphid = 0x0041010,
};
-static void adm5120_uart_set_mctrl(struct amba_device *dev, void __iomem *base,
+void adm5120_uart_set_mctrl(struct amba_device *dev, void __iomem *base,
unsigned int mctrl)
{
}
+
+int adm5120_nand_ready(struct mtd_info *mtd)
+{
+ return ((adm5120_nand_get_status() & ADM5120_NAND_STATUS_READY) != 0);
+}
+
+void adm5120_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
+{
+ if (ctrl & NAND_CTRL_CHANGE) {
+ adm5120_nand_set_cle(ctrl & NAND_CLE);
+ adm5120_nand_set_ale(ctrl & NAND_ALE);
+ adm5120_nand_set_cen(ctrl & NAND_NCE);
+ }
+
+ if (cmd != NAND_CMD_NONE)
+ NAND_WRITE_REG(NAND_REG_DATA, cmd);
+}
+
diff --git a/target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_defs.h b/target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_defs.h
index f5ab1b3f1c..d39620aabb 100644
--- a/target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_defs.h
+++ b/target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_defs.h
@@ -29,6 +29,7 @@
#define ADM5120_SDRAM0_BASE 0x00000000
#define ADM5120_SDRAM1_BASE 0x01000000
#define ADM5120_SRAM1_BASE 0x10000000
+#define ADM5120_NAND_BASE ADM5120_SRAM1_BASE
#define ADM5120_MPMC_BASE 0x11000000
#define ADM5120_USBC_BASE 0x11200000
#define ADM5120_PCIMEM_BASE 0x11400000
@@ -41,6 +42,7 @@
#define ADM5120_UART1_BASE 0x12800000
#define ADM5120_SRAM0_BASE 0x1FC00000
+#define ADM5120_NAND_SIZE 0xB
#define ADM5120_MPMC_SIZE 0x1000
#define ADM5120_USBC_SIZE 0x84
#define ADM5120_PCIMEM_SIZE (ADM5120_PCIIO_BASE - ADM5120_PCIMEM_BASE)
diff --git a/target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_nand.h b/target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_nand.h
new file mode 100644
index 0000000000..8d86fc6e78
--- /dev/null
+++ b/target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_nand.h
@@ -0,0 +1,102 @@
+/*
+ * ADM5120 NAND interface definitions
+ *
+ * This header file defines the hardware registers of the ADM5120 SoC
+ * built-in NAND interface.
+ *
+ * Copyright (C) 2007 OpenWrt.org
+ * Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
+ *
+ * NAND interface routines was based on a driver for Linux 2.6.19+ which
+ * was derived from the driver for Linux 2.4.xx published by Mikrotik for
+ * their RouterBoard 1xx and 5xx series boards.
+ * Copyright (C) 2007 David Goodenough <david.goodenough@linkchoose.co.uk>
+ * Copyright (C) 2007 Florian Fainelli <florian@openwrt.org>
+ * The original Mikrotik code seems not to have a license.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef _ADM5120_NAND_H_
+#define _ADM5120_NAND_H_
+
+#include <linux/types.h>
+#include <linux/io.h>
+
+#include <adm5120_defs.h>
+#include <adm5120_switch.h>
+
+/* NAND control registers */
+#define NAND_REG_DATA 0x0 /* data register */
+#define NAND_REG_SET_CEn 0x1 /* CE# low */
+#define NAND_REG_CLR_CEn 0x2 /* CE# high */
+#define NAND_REG_CLR_CLE 0x3 /* CLE low */
+#define NAND_REG_SET_CLE 0x4 /* CLE high */
+#define NAND_REG_CLR_ALE 0x5 /* ALE low */
+#define NAND_REG_SET_ALE 0x6 /* ALE high */
+#define NAND_REG_SET_SPn 0x7 /* SP# low (use spare area) */
+#define NAND_REG_CLR_SPn 0x8 /* SP# high (do not use spare area) */
+#define NAND_REG_SET_WPn 0x9 /* WP# low */
+#define NAND_REG_CLR_WPn 0xA /* WP# high */
+#define NAND_REG_STATUS 0xB /* Status register */
+
+#define ADM5120_NAND_STATUS_READY 0x80
+
+#define NAND_READ_REG(r) \
+ readb((void __iomem *)KSEG1ADDR(ADM5120_NAND_BASE) + (r))
+#define NAND_WRITE_REG(r, v) \
+ writeb((v),(void __iomem *)KSEG1ADDR(ADM5120_NAND_BASE) + (r))
+
+/*-------------------------------------------------------------------------*/
+
+static inline void adm5120_nand_enable(void)
+{
+ SW_WRITE_REG(BW_CNTL1, BW_CNTL1_NAND_ENABLE);
+ SW_WRITE_REG(BOOT_DONE, 1);
+}
+
+static inline void adm5120_nand_set_wpn(unsigned int set)
+{
+ NAND_WRITE_REG((set) ? NAND_REG_SET_WPn : NAND_REG_CLR_WPn, 1);
+}
+
+static inline void adm5120_nand_set_spn(unsigned int set)
+{
+ NAND_WRITE_REG((set) ? NAND_REG_SET_SPn : NAND_REG_CLR_SPn, 1);
+}
+
+static inline void adm5120_nand_set_cle(unsigned int set)
+{
+ NAND_WRITE_REG((set) ? NAND_REG_SET_CLE : NAND_REG_CLR_CLE, 1);
+}
+
+static inline void adm5120_nand_set_ale(unsigned int set)
+{
+ NAND_WRITE_REG((set) ? NAND_REG_SET_ALE : NAND_REG_CLR_ALE, 1);
+}
+
+static inline void adm5120_nand_set_cen(unsigned int set)
+{
+ NAND_WRITE_REG((set) ? NAND_REG_SET_CEn : NAND_REG_CLR_CEn, 1);
+}
+
+static inline u8 adm5120_nand_get_status(void)
+{
+ return NAND_READ_REG(NAND_REG_STATUS);
+}
+
+#endif /* _ADM5120_NAND_H_ */
diff --git a/target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_platform.h b/target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_platform.h
index 9b2c98dc9b..b20c483b84 100644
--- a/target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_platform.h
+++ b/target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_platform.h
@@ -31,6 +31,7 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/mtd/partitions.h>
+#include <linux/mtd/nand.h>
#include <linux/amba/bus.h>
#include <linux/amba/serial.h>
@@ -44,10 +45,6 @@ struct adm5120_flash_platform_data {
#endif
};
-struct adm5120_nand_platform_data {
- /* TODO : not yet implemented */
-};
-
struct adm5120_switch_platform_data {
/* TODO: not yet implemented */
};
@@ -73,7 +70,7 @@ static inline void adm5120_pci_set_irq_map(unsigned int nr_irqs,
extern struct adm5120_flash_platform_data adm5120_flash0_data;
extern struct adm5120_flash_platform_data adm5120_flash1_data;
-extern struct adm5120_nand_platform_data adm5120_nand_data;
+extern struct platform_nand_data adm5120_nand_data;
extern struct adm5120_switch_platform_data adm5120_switch_data;
extern struct amba_pl010_data adm5120_uart0_data;
extern struct amba_pl010_data adm5120_uart1_data;
@@ -86,4 +83,11 @@ extern struct platform_device adm5120_switch_device;
extern struct amba_device adm5120_uart0_device;
extern struct amba_device adm5120_uart1_device;
+extern void adm5120_uart_set_mctrl(struct amba_device *dev, void __iomem *base,
+ unsigned int mctrl);
+
+extern void adm5120_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
+ unsigned int ctrl);
+extern int adm5120_nand_ready(struct mtd_info *mtd);
+
#endif /* _ADM5120_PLATFORM_H_ */
diff --git a/target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_switch.h b/target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_switch.h
index f3c05f6ef3..c3af94ba74 100644
--- a/target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_switch.h
+++ b/target/linux/adm5120/files/include/asm-mips/mach-adm5120/adm5120_switch.h
@@ -171,6 +171,8 @@
#define P5TBC_SHIFT 8
#define P5RBC_SHIFT 12
+#define BW_CNTL1_NAND_ENABLE 0x100
+
/* PHY_CNTL0 register bits */
#define PHY_CNTL0_PHYA_MASK BITMASK(5)
#define PHY_CNTL0_PHYR_MASK BITMASK(5)
diff --git a/target/linux/adm5120/router_le/config-2.6.22 b/target/linux/adm5120/router_le/config-2.6.22
index a331c2a134..0f93b1affa 100644
--- a/target/linux/adm5120/router_le/config-2.6.22
+++ b/target/linux/adm5120/router_le/config-2.6.22
@@ -154,14 +154,14 @@ CONFIG_MTD_MAP_BANK_WIDTH_4=y
# CONFIG_MTD_MTDRAM is not set
CONFIG_MTD_MYLOADER_PARTS=y
CONFIG_MTD_NAND=y
-CONFIG_MTD_NAND_ADM5120=y
+# CONFIG_MTD_NAND_ADM5120 is not set
# CONFIG_MTD_NAND_CAFE is not set
# CONFIG_MTD_NAND_DISKONCHIP is not set
# CONFIG_MTD_NAND_ECC_SMC is not set
CONFIG_MTD_NAND_IDS=y
# CONFIG_MTD_NAND_MUSEUM_IDS is not set
# CONFIG_MTD_NAND_NANDSIM is not set
-# CONFIG_MTD_NAND_PLATFORM is not set
+CONFIG_MTD_NAND_PLATFORM=y
# CONFIG_MTD_NAND_VERIFY_WRITE is not set
# CONFIG_MTD_ONENAND is not set
CONFIG_MTD_PARTITIONS=y