From: Greg Meiste <w30289@motorola.com>
Date: Wed, 16 Feb 2011 16:52:47 +0000 (-0600)
Subject: [ARM] tegra: stingray: Add support for product_type
X-Git-Tag: firefly_0821_release~9834^2~108
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=0518b282b5c1e25aa9d2acc33adad1b34661df32;p=firefly-linux-kernel-4.4.55.git

[ARM] tegra: stingray: Add support for product_type

Stingray bootloader 1036 adds product_type to the kernel command
line to tell the kernel what hardware is present. For example, if
a CDMA modem and wifi were both present, the bootloader would pass
product_type=cw. If a LTE datacard was added, it would change to
product_type=clw.

Change-Id: I1f5663bb1a72e0b6cc7d0dcb65b6036140fbf777
Signed-off-by: Greg Meiste <w30289@motorola.com>
---

diff --git a/arch/arm/mach-tegra/board-stingray.c b/arch/arm/mach-tegra/board-stingray.c
index dc46ee5f89fd..8bfcfb0aeda1 100644
--- a/arch/arm/mach-tegra/board-stingray.c
+++ b/arch/arm/mach-tegra/board-stingray.c
@@ -718,6 +718,38 @@ static int __init mot_bm_recovery_setup(char *options)
 }
 __setup("rec", mot_bm_recovery_setup);
 
+#define PRODUCT_TYPE_MAX_LEN 4
+static char product_type[PRODUCT_TYPE_MAX_LEN + 1] = "cw";
+static int __init stingray_product_type_parse(char *s)
+{
+	strncpy(product_type, s, PRODUCT_TYPE_MAX_LEN);
+	product_type[PRODUCT_TYPE_MAX_LEN] = '\0';
+	printk(KERN_INFO "product_type=%s\n", product_type);
+
+	return 1;
+}
+__setup("product_type=", stingray_product_type_parse);
+
+bool stingray_hw_has_cdma(void)
+{
+	return strstr(product_type, "c") != NULL;
+}
+
+bool stingray_hw_has_lte(void)
+{
+	return strstr(product_type, "l") != NULL;
+}
+
+bool stingray_hw_has_wifi(void)
+{
+	return strstr(product_type, "w") != NULL;
+}
+
+bool stingray_hw_has_umts(void)
+{
+	return strstr(product_type, "u") != NULL;
+}
+
 static void stingray_usb_init(void)
 {
 	char *src;
diff --git a/arch/arm/mach-tegra/board-stingray.h b/arch/arm/mach-tegra/board-stingray.h
index 0c1b790935dc..74c4641d3294 100644
--- a/arch/arm/mach-tegra/board-stingray.h
+++ b/arch/arm/mach-tegra/board-stingray.h
@@ -33,6 +33,11 @@ int stingray_qbp_usb_hw_bypass_enabled(void);
 void stingray_init_emc(void);
 void change_power_brcm_4329(bool);
 
+bool stingray_hw_has_cdma(void);
+bool stingray_hw_has_lte(void);
+bool stingray_hw_has_wifi(void);
+bool stingray_hw_has_umts(void);
+
 /* as defined in the bootloader*/
 #define HWREV(x)    (((x)>>16) & 0xFFFF)
 #define INSTANCE(x) ((x) & 0xFFFF)