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Message-Id: <1232460738-4714-1-git-send-email-anemo@mba.ocn.ne.jp>
Date: Tue, 20 Jan 2009 23:12:15 +0900
From: Atsushi Nemoto <anemo@....ocn.ne.jp>
To: linux-mips@...ux-mips.org
Cc: ralf@...ux-mips.org, linux-mtd@...ts.infradead.org,
dwmw2@...radead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/5] TXx9: Add NDFMC support
Add platform support for NAND Flash Memory Controller of TXx9 SoCs.
Signed-off-by: Atsushi Nemoto <anemo@....ocn.ne.jp>
---
arch/mips/include/asm/txx9/ndfmc.h | 30 ++++++++++++++++++++++++++++++
arch/mips/include/asm/txx9/tx4938.h | 1 +
arch/mips/include/asm/txx9/tx4939.h | 2 ++
arch/mips/txx9/generic/setup.c | 21 +++++++++++++++++++++
arch/mips/txx9/generic/setup_tx4938.c | 21 +++++++++++++++++++++
arch/mips/txx9/generic/setup_tx4939.c | 17 +++++++++++++++++
arch/mips/txx9/rbtx4938/setup.c | 2 ++
arch/mips/txx9/rbtx4939/setup.c | 4 ++++
8 files changed, 98 insertions(+), 0 deletions(-)
create mode 100644 arch/mips/include/asm/txx9/ndfmc.h
diff --git a/arch/mips/include/asm/txx9/ndfmc.h b/arch/mips/include/asm/txx9/ndfmc.h
new file mode 100644
index 0000000..fa67f3d
--- /dev/null
+++ b/arch/mips/include/asm/txx9/ndfmc.h
@@ -0,0 +1,30 @@
+/*
+ * 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.
+ *
+ * (C) Copyright TOSHIBA CORPORATION 2007
+ */
+#ifndef __ASM_TXX9_NDFMC_H
+#define __ASM_TXX9_NDFMC_H
+
+#define NDFMC_PLAT_FLAG_USE_BSPRT 0x01
+#define NDFMC_PLAT_FLAG_NO_RSTR 0x02
+#define NDFMC_PLAT_FLAG_HOLDADD 0x04
+#define NDFMC_PLAT_FLAG_DUMMYWRITE 0x08
+
+struct txx9ndfmc_platform_data {
+ unsigned int shift;
+ unsigned int gbus_clock;
+ unsigned int hold; /* hold time in nanosecond */
+ unsigned int spw; /* strobe pulse width in nanosecond */
+ unsigned int flags;
+ unsigned char ch_mask; /* available channel bitmask */
+ unsigned char wp_mask; /* write-protect bitmask */
+ unsigned char wide_mask; /* 16bit-nand bitmask */
+};
+
+void txx9_ndfmc_init(unsigned long baseaddr,
+ const struct txx9ndfmc_platform_data *plat_data);
+
+#endif /* __ASM_TXX9_NDFMC_H */
diff --git a/arch/mips/include/asm/txx9/tx4938.h b/arch/mips/include/asm/txx9/tx4938.h
index 0b06815..cd8bc20 100644
--- a/arch/mips/include/asm/txx9/tx4938.h
+++ b/arch/mips/include/asm/txx9/tx4938.h
@@ -291,6 +291,7 @@ int tx4938_pcic1_map_irq(const struct pci_dev *dev, u8 slot);
void tx4938_setup_pcierr_irq(void);
void tx4938_irq_init(void);
void tx4938_mtd_init(int ch);
+void tx4938_ndfmc_init(unsigned int hold, unsigned int spw);
struct tx4938ide_platform_info {
/*
diff --git a/arch/mips/include/asm/txx9/tx4939.h b/arch/mips/include/asm/txx9/tx4939.h
index 964ef7e..af456c7 100644
--- a/arch/mips/include/asm/txx9/tx4939.h
+++ b/arch/mips/include/asm/txx9/tx4939.h
@@ -541,6 +541,8 @@ void tx4939_irq_init(void);
int tx4939_irq(void);
void tx4939_mtd_init(int ch);
void tx4939_ata_init(void);
+void tx4939_ndfmc_init(unsigned int hold, unsigned int spw,
+ unsigned char ch_mask, unsigned char wide_mask);
void tx4939_rtc_init(void);
#endif /* __ASM_TXX9_TX4939_H */
diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
index a13a08b..8a266c6 100644
--- a/arch/mips/txx9/generic/setup.c
+++ b/arch/mips/txx9/generic/setup.c
@@ -32,6 +32,7 @@
#include <asm/txx9/generic.h>
#include <asm/txx9/pci.h>
#include <asm/txx9tmr.h>
+#include <asm/txx9/ndfmc.h>
#ifdef CONFIG_CPU_TX49XX
#include <asm/txx9/tx4938.h>
#endif
@@ -691,6 +692,26 @@ void __init txx9_physmap_flash_init(int no, unsigned long addr,
#endif
}
+void __init txx9_ndfmc_init(unsigned long baseaddr,
+ const struct txx9ndfmc_platform_data *pdata)
+{
+#if defined(CONFIG_MTD_NAND_TXX9NDFMC) || \
+ defined(CONFIG_MTD_NAND_TXX9NDFMC_MODULE)
+ struct resource res = {
+ .start = baseaddr,
+ .end = baseaddr + 0x1000 - 1,
+ .flags = IORESOURCE_MEM,
+ };
+ struct platform_device *pdev = platform_device_alloc("txx9ndfmc", -1);
+
+ if (!pdev ||
+ platform_device_add_resources(pdev, &res, 1) ||
+ platform_device_add_data(pdev, pdata, sizeof(*pdata)) ||
+ platform_device_add(pdev))
+ platform_device_put(pdev);
+#endif
+}
+
#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
static DEFINE_SPINLOCK(txx9_iocled_lock);
diff --git a/arch/mips/txx9/generic/setup_tx4938.c b/arch/mips/txx9/generic/setup_tx4938.c
index 25819ff..f0844f8 100644
--- a/arch/mips/txx9/generic/setup_tx4938.c
+++ b/arch/mips/txx9/generic/setup_tx4938.c
@@ -23,6 +23,7 @@
#include <asm/txx9tmr.h>
#include <asm/txx9pio.h>
#include <asm/txx9/generic.h>
+#include <asm/txx9/ndfmc.h>
#include <asm/txx9/tx4938.h>
static void __init tx4938_wdr_init(void)
@@ -382,6 +383,26 @@ void __init tx4938_ata_init(unsigned int irq, unsigned int shift, int tune)
platform_device_put(pdev);
}
+void __init tx4938_ndfmc_init(unsigned int hold, unsigned int spw)
+{
+ struct txx9ndfmc_platform_data plat_data = {
+ .shift = 1,
+ .gbus_clock = txx9_gbus_clock,
+ .hold = hold,
+ .spw = spw,
+ .ch_mask = 1,
+ };
+ unsigned long baseaddr = TX4938_NDFMC_REG & 0xfffffffffULL;
+
+#ifdef __BIG_ENDIAN
+ baseaddr += 4;
+#endif
+ if ((__raw_readq(&tx4938_ccfgptr->pcfg) &
+ (TX4938_PCFG_ATA_SEL|TX4938_PCFG_ISA_SEL|TX4938_PCFG_NDF_SEL)) ==
+ TX4938_PCFG_NDF_SEL)
+ txx9_ndfmc_init(baseaddr, &plat_data);
+}
+
static void __init tx4938_stop_unused_modules(void)
{
__u64 pcfg, rst = 0, ckd = 0;
diff --git a/arch/mips/txx9/generic/setup_tx4939.c b/arch/mips/txx9/generic/setup_tx4939.c
index 5544096..ec56b91 100644
--- a/arch/mips/txx9/generic/setup_tx4939.c
+++ b/arch/mips/txx9/generic/setup_tx4939.c
@@ -27,6 +27,7 @@
#include <asm/txx9irq.h>
#include <asm/txx9tmr.h>
#include <asm/txx9/generic.h>
+#include <asm/txx9/ndfmc.h>
#include <asm/txx9/tx4939.h>
static void __init tx4939_wdr_init(void)
@@ -435,6 +436,22 @@ void __init tx4939_ata_init(void)
platform_device_register(&ata1_dev);
}
+void __init tx4939_ndfmc_init(unsigned int hold, unsigned int spw,
+ unsigned char ch_mask, unsigned char wide_mask)
+{
+ struct txx9ndfmc_platform_data plat_data = {
+ .shift = 1,
+ .gbus_clock = txx9_gbus_clock,
+ .hold = hold,
+ .spw = spw,
+ .flags = NDFMC_PLAT_FLAG_NO_RSTR | NDFMC_PLAT_FLAG_HOLDADD |
+ NDFMC_PLAT_FLAG_DUMMYWRITE,
+ .ch_mask = ch_mask,
+ .wide_mask = wide_mask,
+ };
+ txx9_ndfmc_init(TX4939_NDFMC_REG & 0xfffffffffULL, &plat_data);
+}
+
void __init tx4939_rtc_init(void)
{
static struct resource res[] = {
diff --git a/arch/mips/txx9/rbtx4938/setup.c b/arch/mips/txx9/rbtx4938/setup.c
index 547ff29..65d13df 100644
--- a/arch/mips/txx9/rbtx4938/setup.c
+++ b/arch/mips/txx9/rbtx4938/setup.c
@@ -352,6 +352,8 @@ static void __init rbtx4938_device_init(void)
rbtx4938_ne_init();
tx4938_wdt_init();
rbtx4938_mtd_init();
+ /* TC58DVM82A1FT: tDH=10ns, tWP=tRP=tREADID=35ns */
+ tx4938_ndfmc_init(10, 35);
tx4938_ata_init(RBTX4938_IRQ_IOC_ATA, 0, 1);
txx9_iocled_init(RBTX4938_LED_ADDR - IO_BASE, -1, 8, 1, "green", NULL);
}
diff --git a/arch/mips/txx9/rbtx4939/setup.c b/arch/mips/txx9/rbtx4939/setup.c
index 656603b..74839f2 100644
--- a/arch/mips/txx9/rbtx4939/setup.c
+++ b/arch/mips/txx9/rbtx4939/setup.c
@@ -333,6 +333,10 @@ static void __init rbtx4939_device_init(void)
platform_device_add_data(pdev, &smc_pdata, sizeof(smc_pdata)) ||
platform_device_add(pdev))
platform_device_put(pdev);
+ /* TC58DVM82A1FT: tDH=10ns, tWP=tRP=tREADID=35ns */
+ tx4939_ndfmc_init(10, 35,
+ (1 << 1) | (1 << 2),
+ (1 << 2)); /* ch1:8bit, ch2:16bit */
rbtx4939_led_setup();
tx4939_wdt_init();
tx4939_ata_init();
--
1.5.6.3
--
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