From b55636bb42025579c114ee09089423378c117704 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 20 Feb 2010 20:45:00 +0000
Subject: [PATCH] [xburst] Add per board struct describing the external clock
 setup.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19783 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 .../include/asm/mach-jz4740/board-qi_lb60.h   |  5 ---
 .../arch/mips/include/asm/mach-jz4740/clock.h |  1 -
 .../mips/include/asm/mach-jz4740/jz4740.h     |  3 --
 .../arch/mips/jz4740/board-n526.c             | 45 +++++++------------
 .../arch/mips/jz4740/board-qi_lb60.c          | 12 +++--
 .../files-2.6.32/arch/mips/jz4740/clock.c     |  5 ++-
 .../files-2.6.32/arch/mips/jz4740/clock.h     | 11 +++++
 .../files-2.6.32/arch/mips/jz4740/reset.c     |  4 +-
 .../files-2.6.32/arch/mips/jz4740/setup.c     |  6 +--
 .../files-2.6.32/arch/mips/jz4740/time.c      | 10 +----
 10 files changed, 47 insertions(+), 55 deletions(-)

diff --git a/target/linux/xburst/files-2.6.32/arch/mips/include/asm/mach-jz4740/board-qi_lb60.h b/target/linux/xburst/files-2.6.32/arch/mips/include/asm/mach-jz4740/board-qi_lb60.h
index e5de9da7a4..cfbf0733b2 100644
--- a/target/linux/xburst/files-2.6.32/arch/mips/include/asm/mach-jz4740/board-qi_lb60.h
+++ b/target/linux/xburst/files-2.6.32/arch/mips/include/asm/mach-jz4740/board-qi_lb60.h
@@ -20,11 +20,6 @@
 #define __ASM_JZ4740_QI_LB60_H__
 
 #include <linux/gpio.h>
-/*
- * Frequencies of on-board oscillators
- */
-#define JZ_EXTAL		12000000  /* Main extal freq: 12 MHz */
-#define JZ_EXTAL_RTC		32768     /* RTC extal freq: 32.768 KHz */
 
 /*
  * GPIO
diff --git a/target/linux/xburst/files-2.6.32/arch/mips/include/asm/mach-jz4740/clock.h b/target/linux/xburst/files-2.6.32/arch/mips/include/asm/mach-jz4740/clock.h
index c75c07b374..1f8e53b25a 100644
--- a/target/linux/xburst/files-2.6.32/arch/mips/include/asm/mach-jz4740/clock.h
+++ b/target/linux/xburst/files-2.6.32/arch/mips/include/asm/mach-jz4740/clock.h
@@ -23,7 +23,6 @@ enum jz4740_wait_mode
 	JZ4740_WAIT_MODE_SLEEP,
 };
 
-int jz_init_clocks(unsigned long ext_rate);
 void jz4740_clock_set_wait_mode(enum jz4740_wait_mode mode);
 
 void jz4740_clock_udc_enable_auto_suspend(void);
diff --git a/target/linux/xburst/files-2.6.32/arch/mips/include/asm/mach-jz4740/jz4740.h b/target/linux/xburst/files-2.6.32/arch/mips/include/asm/mach-jz4740/jz4740.h
index 7f9293a9aa..9885db2430 100644
--- a/target/linux/xburst/files-2.6.32/arch/mips/include/asm/mach-jz4740/jz4740.h
+++ b/target/linux/xburst/files-2.6.32/arch/mips/include/asm/mach-jz4740/jz4740.h
@@ -26,9 +26,6 @@
 #include <asm/mach-jz4740/board-qi_lb60.h>
 #endif
 
-/* Add other platform definition here ... */
-
-
 /*------------------------------------------------------------------
  * Follows are related to platform definitions
  */
diff --git a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-n526.c b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-n526.c
index fa46278072..6e65417eb9 100644
--- a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-n526.c
+++ b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-n526.c
@@ -22,7 +22,6 @@
 #include <linux/mtd/jz4740_nand.h>
 #include <linux/jz4740_fb.h>
 #include <linux/power_supply.h>
-#include <linux/power/jz4740-battery.h>
 #include <linux/mmc/jz4740_mmc.h>
 
 #include <video/broadsheetfb.h>
@@ -35,6 +34,8 @@
 #include <linux/i2c.h>
 #include <linux/i2c-gpio.h>
 
+#include "clock.h"
+
 /* NAND */
 static struct nand_ecclayout n526_ecclayout = {
 	.eccbytes = 36,
@@ -73,19 +74,6 @@ static struct jz_nand_platform_data n526_nand_pdata = {
 	.busy_gpio = 94,
 };
 
-
-/* Battery */
-/*static struct jz_batt_info n526_battery_pdata = {
-	.dc_dect_gpio	= GPIO_DC_DETE_N,
-	.usb_dect_gpio	= GPIO_USB_DETE,
-	.charg_stat_gpio  = GPIO_CHARG_STAT_N,
-
-	.min_voltag	= 3600000,
-	.max_voltag	= 4200000,
-	.batt_tech	= POWER_SUPPLY_TECHNOLOGY_LIPO,
-};*/
-
-
 static struct jz4740_mmc_platform_data n526_mmc_pdata = {
 	.gpio_card_detect	= JZ_GPIO_PORTD(7),
 	.card_detect_active_low = 1,
@@ -144,7 +132,6 @@ value)
 
 static int n526_eink_wait(struct broadsheetfb_par *par)
 {
-	int i = 0;
 	wait_event(par->waitq, gpio_get_value(JZ_GPIO_PORTB(17)));
 
 	return 0;
@@ -171,36 +158,35 @@ static void n526_eink_set_hdb(struct broadsheetfb_par *par, u16 value)
 
 static int n526_eink_init(struct broadsheetfb_par *par)
 {
-	int i = 0;
+	int i;
 
-	gpio_request(JZ_GPIO_PORTD(1), "display reset?");
+	gpio_request(JZ_GPIO_PORTD(1), "display reset");
 	gpio_direction_output(JZ_GPIO_PORTD(1), 1);
 	mdelay(10);
 	gpio_set_value(JZ_GPIO_PORTD(1), 0);
 
-	gpio_request(JZ_GPIO_PORTB(18), "foobar");
+	gpio_request(JZ_GPIO_PORTB(18), "eink enable");
 	gpio_direction_output(JZ_GPIO_PORTB(18), 0);
 
 	gpio_request(JZ_GPIO_PORTB(29), "foobar");
 	gpio_direction_output(JZ_GPIO_PORTB(29), 1);
 
-
 	for(i = 1; i < ARRAY_SIZE(n526_eink_ctrl_gpios); ++i) {
-		gpio_request(n526_eink_ctrl_gpios[i], "foobar");
+		gpio_request(n526_eink_ctrl_gpios[i], "eink display ctrl");
 		gpio_direction_output(n526_eink_ctrl_gpios[i], 0);
 	}
 
 	gpio_request(JZ_GPIO_PORTC(22), "foobar");
 	gpio_direction_input(JZ_GPIO_PORTC(22));
-	gpio_request(JZ_GPIO_PORTC(21), "foobar");
+	gpio_request(JZ_GPIO_PORTC(21), "eink nRD");
 	gpio_direction_output(JZ_GPIO_PORTC(21), 1);
 
 	for(i = 0; i < 16; ++i) {
-		gpio_request(JZ_GPIO_PORTC(i), "display data");
+		gpio_request(JZ_GPIO_PORTC(i), "eink display data");
 	}
 	jz_gpio_port_direction_output(JZ_GPIO_PORTC(0), 0xffff);
 
-	gpio_direction_output(JZ_GPIO_PORTB(18), 1);
+	gpio_set_value(JZ_GPIO_PORTB(18), 1);
 
 	return 0;
 }
@@ -218,12 +204,12 @@ static int n526_eink_setup_irq(struct fb_info *info)
 	int ret;
 	struct broadsheetfb_par *par = info->par;
 
-	gpio_request(JZ_GPIO_PORTB(17), "foobar");
+	gpio_request(JZ_GPIO_PORTB(17), "eink busy");
 	gpio_direction_input(JZ_GPIO_PORTB(17));
 
 	ret = request_irq(gpio_to_irq(JZ_GPIO_PORTB(17)), n526_eink_busy_irq,
 				IRQF_DISABLED | IRQF_TRIGGER_RISING,
-				"eInk busyline", par);
+				"eink busyline", par);
 	if (ret)
 		printk("n526 display: Failed to request busyline irq: %d\n", ret);
 	return 0;
@@ -294,7 +280,6 @@ static struct i2c_board_info n526_i2c_board_info = {
 	.addr = 0x54,
 };
 
-
 static struct platform_device *jz_platform_devices[] __initdata = {
 	&jz4740_usb_ohci_device,
 	&jz4740_usb_gdt_device,
@@ -314,7 +299,6 @@ static int __init n526_init_platform_devices(void)
 {
 
 	jz4740_nand_device.dev.platform_data = &n526_nand_pdata;
-/*	jz4740_battery_device.dev.platform_data = &n526_battery_pdata;*/
 	jz4740_mmc_device.dev.platform_data = &n526_mmc_pdata;
 
 	n526_i2c_board_info.irq = gpio_to_irq(JZ_GPIO_PORTD(14)),
@@ -325,16 +309,19 @@ static int __init n526_init_platform_devices(void)
 
 }
 
+struct jz4740_clock_board_data jz4740_clock_bdata = {
+	.ext_rate = 12000000,
+	.rtc_rate = 32768,
+};
 
 extern int jz_gpiolib_init(void);
-extern int jz_init_clocks(unsigned long extal);
 
 static int __init n526_board_setup(void)
 {
 	if (jz_gpiolib_init())
 		panic("Failed to initalize jz gpio\n");
-	jz_init_clocks(12000000);
 
+	jz4740_init_clocks();
 	board_gpio_setup();
 
 	if (n526_init_platform_devices())
diff --git a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-qi_lb60.c b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-qi_lb60.c
index 249d4c5fd5..bf0863626b 100644
--- a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-qi_lb60.c
+++ b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-qi_lb60.c
@@ -31,6 +31,7 @@
 #include <linux/power/gpio-charger.h>
 #include <linux/mmc/jz4740_mmc.h>
 
+#include "clock.h"
 
 /* NAND */
 static struct nand_ecclayout qi_lb60_ecclayout_1gb = {
@@ -118,7 +119,6 @@ static struct jz_nand_platform_data qi_lb60_nand_pdata = {
 	.busy_gpio = 94,
 };
 
-
 /* Keyboard*/
 
 /* #define KEEP_UART_ALIVE
@@ -387,12 +387,18 @@ static int __init qi_lb60_init_platform_devices(void)
 					ARRAY_SIZE(jz_platform_devices));
 
 }
+
+struct jz4740_clock_board_data jz4740_clock_bdata = {
+	.ext_rate = 12000000,
+	.rtc_rate = 32768,
+};
+
 extern int jz_gpiolib_init(void);
-extern int jz_init_clocks(unsigned long extal);
 
 static __init int board_avt2(char *str)
 {
 	qi_lb60_mmc_pdata.card_detect_active_low = 1;
+	qi_lb60_mmc_pdata.power_active_low	= 1;
 
 	return 1;
 }
@@ -404,8 +410,8 @@ static int __init qi_lb60_board_setup(void)
 	printk("Qi Hardware JZ4740 QI_LB60 setup\n");
 	if (jz_gpiolib_init())
 		panic("Failed to initalize jz gpio\n");
-	jz_init_clocks(12000000);
 
+	jz_init_clocks();
 	board_gpio_setup();
 
 	if (qi_lb60_init_platform_devices())
diff --git a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/clock.c b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/clock.c
index 1b32a8dee9..26ae08d7c1 100644
--- a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/clock.c
+++ b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/clock.c
@@ -873,7 +873,7 @@ void jz4740_clock_udc_enable_auto_suspend(void)
 }
 EXPORT_SYMBOL_GPL(jz4740_clock_udc_enable_auto_suspend);
 
-int jz_init_clocks(unsigned long ext_rate)
+int jz_init_clocks(void)
 {
 	uint32_t val;
 
@@ -883,7 +883,8 @@ int jz_init_clocks(unsigned long ext_rate)
 
 	spin_lock_init(&jz_clock_lock);
 
-	jz_clk_ext.rate = ext_rate;
+	jz_clk_ext.rate = jz4740_clock_bdata.ext_rate;
+	jz_clk_rtc.rate = jz4740_clock_bdata.rtc_rate;
 
 	val = jz_clk_reg_read(JZ_REG_CLOCK_SPI);
 
diff --git a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/clock.h b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/clock.h
index 88ce07d16d..e0fd9ece5d 100644
--- a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/clock.h
+++ b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/clock.h
@@ -16,6 +16,17 @@
 #ifndef __JZ4740_CLOCK_H__
 #define __JZ4740_CLOCK_H__
 
+struct jz4740_clock_board_data {
+	unsigned long ext_rate;
+	unsigned long rtc_rate;
+};
+
+extern struct jz4740_clock_board_data jz4740_clock_bdata;
+
+int jz_init_clocks(void);
+
+struct clk;
+
 struct clk_ops {
 	unsigned long (*get_rate)(struct clk* clk);
 	unsigned long (*round_rate)(struct clk *clk, unsigned long rate);
diff --git a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/reset.c b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/reset.c
index a4b2292f10..e4fd522b87 100644
--- a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/reset.c
+++ b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/reset.c
@@ -21,12 +21,14 @@
 #include <asm/mach-jz4740/timer.h>
 #include <asm/mach-jz4740/jz4740.h>
 
+#include "clock.h"
+
 void jz_restart(char *command)
 {
 	printk(KERN_NOTICE "Restarting after 4 ms\n");
 	REG_WDT_TCSR = WDT_TCSR_PRESCALE4 | WDT_TCSR_EXT_EN;
 	REG_WDT_TCNT = 0;
-	REG_WDT_TDR = JZ_EXTAL/1000;   /* reset after 4ms */
+	REG_WDT_TDR = jz4740_clock_bdata.ext_rate / 1000;   /* reset after 4ms */
 	jz4740_timer_enable_watchdog();
 	REG_WDT_TCER = WDT_TCER_TCEN;  /* wdt start */
 	while (1);
diff --git a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/setup.c b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/setup.c
index 466d5fd016..f475ff6dd1 100644
--- a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/setup.c
+++ b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/setup.c
@@ -41,12 +41,12 @@
 #include <asm/mach-jz4740/clock.h>
 #include <asm/mach-jz4740/serial.h>
 
+#include "clock.h"
+
 extern char *__init prom_getcmdline(void);
-extern void __init jz_board_setup(void);
 extern void jz_restart(char *);
 extern void jz_halt(void);
 extern void jz_power_off(void);
-extern void jz_time_init(void);
 
 static void __init jz_serial_setup(void)
 {
@@ -57,7 +57,7 @@ static void __init jz_serial_setup(void)
 	s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
 	s.iotype = SERIAL_IO_MEM;
 	s.regshift = 2;
-	s.uartclk = JZ_EXTAL;
+	s.uartclk = jz4740_clock_bdata.ext_rate;
 
 	s.line = 0;
 	s.membase = (u8 *)UART0_BASE;
diff --git a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/time.c b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/time.c
index b811fcd446..d9c5eba61c 100644
--- a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/time.c
+++ b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/time.c
@@ -22,6 +22,7 @@
 #include <asm/mach-jz4740/irq.h>
 #include <asm/mach-jz4740/jz4740.h>
 #include <asm/time.h>
+#include "clock.h"
 
 #define JZ_REG_TIMER_STOP		0x1C
 #define JZ_REG_TIMER_STOP_SET		0x2C
@@ -216,7 +217,6 @@ void __init plat_time_init(void)
 {
     int ret;
 	uint32_t clk_rate;
-	struct clk *ext_clk;
 
 	jz4740_timer_base = ioremap(CPHYSADDR(TCU_BASE), 0x100);
 
@@ -225,13 +225,7 @@ void __init plat_time_init(void)
 	    return;
 	}
 
-	/*ext_clk = clk_get(NULL, "ext");
-	clk_rate = clk_get_rate(ext_clk) >> 4;
-	clk_put(ext_clk);*/
-
-
-	clk_rate = JZ_EXTAL >> 4;
-
+	clk_rate = jz4740_clock_bdata.ext_rate >> 4;
     jz4740_jiffies_per_tick = DIV_ROUND_CLOSEST(clk_rate, HZ);
 
 	clockevent_set_clock(&jz4740_clockevent, clk_rate);