[PATCH v3 14/16] ARM: tegra: board2: add generic late init

[Svyatoslav Ryhel]

Board specific late init allows vendors to set up different device
or board specific env variables (like serial number, platform name).
In case this information is missing, u-boot will lack info regards
serial or platform.

To avoid this prior nvidia_board_late_init internal generic function
is called which fills required data. In this case platform name is
obtained from get_chip and serialno is filled with SoC id.

Though SoC id is not dedicated to be devices serial but it fits well
in case of restriction of data about device and since SoC is basically
a main chip of the device.

Tested-by: Andreas Westman Dorcsak <hedmoo at yahoo.com> # ASUS Transformers
Tested-by: Svyatoslav Ryhel <clamor95 at gmail.com> # Nvidia Tegratab
Signed-off-by: Svyatoslav Ryhel <clamor95 at gmail.com>
Reviewed-by: Simon Glass <sjg at chromium.org>
---
 arch/arm/mach-tegra/board2.c | 43 ++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/arch/arm/mach-tegra/board2.c b/arch/arm/mach-tegra/board2.c
index 981768bb0e..cd405874d3 100644
--- a/arch/arm/mach-tegra/board2.c
+++ b/arch/arm/mach-tegra/board2.c
@@ -26,6 +26,10 @@
 #include <asm/arch-tegra/gpu.h>
 #include <asm/arch-tegra/usb.h>
 #include <asm/arch-tegra/xusb-padctl.h>
+#ifndef CONFIG_TEGRA186
+#include <asm/arch-tegra/fuse.h>
+#include <asm/arch/gp_padctrl.h>
+#endif
 #if IS_ENABLED(CONFIG_TEGRA_CLKRST)
 #include <asm/arch/clock.h>
 #endif
@@ -256,6 +260,37 @@ int board_early_init_f(void)
 }
 #endif	/* EARLY_INIT */
 
+#ifndef CONFIG_TEGRA186
+static void nvidia_board_late_init_generic(void)
+{
+	char serialno_str[17];
+
+	/* Set chip id as serialno */
+	sprintf(serialno_str, "%016llx", tegra_chip_uid());
+	env_set("serial#", serialno_str);
+
+	switch (tegra_get_chip()) {
+	case CHIPID_TEGRA20:
+		env_set("platform", "tegra20");
+		break;
+	case CHIPID_TEGRA30:
+		env_set("platform", "tegra30");
+		break;
+	case CHIPID_TEGRA114:
+		env_set("platform", "tegra114");
+		break;
+	case CHIPID_TEGRA124:
+		env_set("platform", "tegra124");
+		break;
+	case CHIPID_TEGRA210:
+		env_set("platform", "tegra210");
+		break;
+	default:
+		return;
+	}
+}
+#endif
+
 int board_late_init(void)
 {
 #if defined(CONFIG_TEGRA_SUPPORT_NON_SECURE)
@@ -268,6 +303,14 @@ int board_late_init(void)
 #endif
 	start_cpu_fan();
 	cboot_late_init();
+
+	/*
+	 * Perform generic env setup in case
+	 * vendor does not provide it.
+	 */
+#ifndef CONFIG_TEGRA186
+	nvidia_board_late_init_generic();
+#endif
 	nvidia_board_late_init();
 
 	return 0;
-- 
2.39.2