From: Colin Cross <ccross@google.com>
Date: Tue, 24 Aug 2010 23:53:43 +0000 (-0700)
Subject: Revert "[ARM] tegra: stingray: Support soft reset"
X-Git-Tag: firefly_0821_release~9834^2~659
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=0949e63b76a38494192f843ad0c47353476d9dc1;p=firefly-linux-kernel-4.4.55.git

Revert "[ARM] tegra: stingray: Support soft reset"

This reverts commit 82567b733517f070013e16e7f450ce1c259592a3.
---

diff --git a/arch/arm/mach-tegra/board-stingray-power.c b/arch/arm/mach-tegra/board-stingray-power.c
index ffda3a90bdb6..a13a6b67520c 100644
--- a/arch/arm/mach-tegra/board-stingray-power.c
+++ b/arch/arm/mach-tegra/board-stingray-power.c
@@ -172,13 +172,6 @@ static int cpcap_validity_probe(struct platform_device *pdev)
 	} else
 		dev_info(&pdev->dev, "Not starting macro 14 (no hw support)\n");
 
-	/* Enable workaround to allow soft resets to work */
-	/* TODO: Only enable this on non-production hardware. */
-	cpcap_regacc_write(cpcap_di, CPCAP_REG_PGC,
-			   CPCAP_BIT_SYS_RST_MODE, CPCAP_BIT_SYS_RST_MODE);
-	err = cpcap_uc_start(cpcap_di, CPCAP_MACRO_15);
-	dev_info(&pdev->dev, "Started macro 15: %d\n", err);
-
 	return 0;
 }
 
diff --git a/arch/arm/mach-tegra/board-stingray.c b/arch/arm/mach-tegra/board-stingray.c
index 3e62d7c297a3..54b76252fa77 100644
--- a/arch/arm/mach-tegra/board-stingray.c
+++ b/arch/arm/mach-tegra/board-stingray.c
@@ -47,7 +47,6 @@
 #include <mach/i2s.h>
 #include <mach/audio.h>
 #include <mach/cpcap_audio.h>
-#include <mach/system.h>
 
 #include <linux/usb/android_composite.h>
 
@@ -786,17 +785,6 @@ static void __init tegra_stingray_fixup(struct machine_desc *desc, struct tag *t
 	mi->bank[1].size = SZ_512M - SZ_256K;
 }
 
-static void stingray_reset(char mode, const char *cmd)
-{
-	/* Signal to CPCAP to stop the uC. */
-	gpio_set_value(TEGRA_GPIO_PG3, 0);
-	mdelay(100);
-	gpio_set_value(TEGRA_GPIO_PG3, 1);
-	mdelay(100);
-
-	tegra_assert_system_reset();
-}
-
 static void stingray_power_off(void)
 {
 	printk(KERN_INFO "stingray_pm_power_off...\n");
@@ -814,11 +802,6 @@ static void stingray_power_off(void)
 
 static void __init stingray_power_off_init(void)
 {
-	tegra_gpio_enable(TEGRA_GPIO_PG3);
-	gpio_request(TEGRA_GPIO_PG3, "sys_restart_b");
-	gpio_direction_output(TEGRA_GPIO_PG3, 1);
-	tegra_reset = stingray_reset;
-
 	tegra_gpio_enable(TEGRA_GPIO_PV7);
 	if (!gpio_request(TEGRA_GPIO_PV7, "wdi"))
 		pm_power_off = stingray_power_off;
@@ -904,6 +887,10 @@ static void __init tegra_stingray_init(void)
 	gpio_request(TEGRA_GPIO_PV4, "usb_data_en");
 	gpio_direction_output(TEGRA_GPIO_PV4, 1);
 
+	tegra_gpio_enable(TEGRA_GPIO_PG3);
+	gpio_request(TEGRA_GPIO_PG3, "sys_restart_b");
+	gpio_direction_output(TEGRA_GPIO_PG3, 1);
+
 	/* ULPI_PHY_RESET_B (TEGRA_GPIO_PG2) can be initialized as
 	   output low when the kernel boots.
 	   FIXME: This will need to be evaluated for datacard scenarios