From: hhb <hhb@rock-chips.com>
Date: Tue, 6 Aug 2013 10:33:47 +0000 (+0800)
Subject: rk gps: add soc gps board level code
X-Git-Tag: firefly_0821_release~6742
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e350cd591af505493409867eb667b137ea48103f;p=firefly-linux-kernel-4.4.55.git

rk gps: add soc gps board level code
---

diff --git a/arch/arm/mach-rk3026/board-rk3028a-tb.c b/arch/arm/mach-rk3026/board-rk3028a-tb.c
index eea778b56b6b..f16a857aa973 100755
--- a/arch/arm/mach-rk3026/board-rk3028a-tb.c
+++ b/arch/arm/mach-rk3026/board-rk3028a-tb.c
@@ -59,6 +59,10 @@
         #include "../../../drivers/video/rockchip/hdmi/rk_hdmi.h"
 #endif
 
+#if defined(CONFIG_GPS_RK)
+#include "../../../drivers/misc/gps/rk_gps/rk_gps.h"
+#endif
+
 #include "board-rk3026-tb-camera.c"
 
 /***********************************************************
@@ -1024,6 +1028,111 @@ void __sramfunc board_pmu_resume(void)
 	#endif
 }
 
+#if defined(CONFIG_GPS_RK)
+#define GPS_OSCEN_PIN 	RK2928_PIN1_PB0
+#define GPS_RXEN_PIN 	RK2928_PIN1_PB0
+
+int rk_gps_io_init(void)
+{
+	printk("%s \n", __FUNCTION__);
+	
+	gpio_request(GPS_OSCEN_PIN, NULL);
+	gpio_direction_output(GPS_OSCEN_PIN, GPIO_LOW);	
+	
+	iomux_set(GPS_CLK);//GPS_CLK
+	iomux_set(GPS_MAG);//GPS_MAG
+	iomux_set(GPS_SIGN);//GPS_SIGN
+#if 0
+	gpio_request(RK30_PIN1_PA6, NULL);
+	gpio_direction_output(RK30_PIN1_PA6, GPIO_LOW);
+
+	gpio_request(RK30_PIN1_PA5, NULL);
+	gpio_direction_output(RK30_PIN1_PA5, GPIO_LOW);	
+
+	gpio_request(RK30_PIN1_PA7, NULL);
+	gpio_direction_output(RK30_PIN1_PA7, GPIO_LOW);		
+#endif	
+	return 0;
+}
+int rk_gps_power_up(void)
+{
+	printk("%s \n", __FUNCTION__);
+
+	return 0;
+}
+
+int rk_gps_power_down(void)
+{
+	printk("%s \n", __FUNCTION__);
+
+	return 0;
+}
+
+int rk_gps_reset_set(int level)
+{
+	return 0;
+}
+int rk_enable_hclk_gps(void)
+{
+	struct clk *gps_aclk = NULL;
+	gps_aclk = clk_get(NULL, "aclk_gps");
+	if(gps_aclk) {
+		clk_enable(gps_aclk);
+		clk_put(gps_aclk);
+		printk("%s \n", __FUNCTION__);
+	}
+	else
+		printk("get gps aclk fail\n");
+	return 0;
+}
+int rk_disable_hclk_gps(void)
+{
+	struct clk *gps_aclk = NULL;
+	gps_aclk = clk_get(NULL, "aclk_gps");
+	if(gps_aclk) {
+		//TO wait long enough until GPS ISR is finished.
+		msleep(5);
+		clk_disable(gps_aclk);
+		clk_put(gps_aclk);
+		printk("%s \n", __FUNCTION__);
+	}	
+	else
+		printk("get gps aclk fail\n");
+	return 0;
+}
+struct rk_gps_data rk_gps_info = {
+	.io_init = rk_gps_io_init,
+	.power_up = rk_gps_power_up,
+	.power_down = rk_gps_power_down,
+	.reset = rk_gps_reset_set,
+	.enable_hclk_gps = rk_enable_hclk_gps,
+	.disable_hclk_gps = rk_disable_hclk_gps,
+	.GpsSign = RK2928_PIN1_PA5,
+	.GpsMag = RK2928_PIN1_PA4,        //GPIO index
+	.GpsClk = RK2928_PIN1_PA2,        //GPIO index
+	.GpsVCCEn = GPS_OSCEN_PIN,     //GPIO index
+#if 0	
+	.GpsSpi_CSO = RK30_PIN1_PA4,    //GPIO index
+	.GpsSpiClk = RK30_PIN1_PA5,     //GPIO index
+	.GpsSpiMOSI = RK30_PIN1_PA7,	  //GPIO index
+#endif	
+	.GpsIrq = IRQ_GPS,
+	.GpsSpiEn = 0,
+	.GpsAdcCh = 2,
+	.u32GpsPhyAddr = RK2928_GPS_PHYS,
+	.u32GpsPhySize = RK2928_GPS_SIZE,
+};
+
+struct platform_device rk_device_gps = {
+	.name = "gps_hv5820b",
+	.id = -1,
+	.dev		= {
+	.platform_data = &rk_gps_info,
+		}
+	};
+#endif
+
+
 /***********************************************************
 *	i2c
 ************************************************************/
@@ -1130,6 +1239,9 @@ static struct platform_device *devices[] __initdata = {
 #ifdef CONFIG_SND_SOC_RK3026
 	&rk3026_codec,
 #endif
+#ifdef CONFIG_GPS_RK
+	&rk_device_gps,
+#endif
 };
 
 static void rk30_pm_power_off(void)
@@ -1183,6 +1295,10 @@ static void __init rk30_reserve(void)
 
 #ifdef CONFIG_VIDEO_RK29
 	rk30_camera_request_reserve_mem();
+#endif
+#ifdef CONFIG_GPS_RK
+	//it must be more than 8MB
+	rk_gps_info.u32MemoryPhyAddr = board_mem_reserve_add("gps", SZ_8M);
 #endif
 	board_mem_reserved();
 }