LG Optimus Black (P970) codename sniper support

The LG Optimus Black (P970) codename sniper is a smartphone that was designed
and manufactured by LG Electronics (LGE) and released back in 2011.

It is using an OMAP3630 SoC GP version, which allows running U-Boot and the
U-Boot SPL from the ground up. This port is aimed at running an Android version
such as Replicant, the fully free Android distribution. However, support for
upstream Linux with device-tree and common GNU/Linux distros boot commands
could be added in the future.

For more information about the journey to freeing this device, please read the
series of blog posts at:
http://code.paulk.fr/article20/a-hacker-s-journey-freeing-a-phone-from-the-ground-up-first-part

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Tom Rini <trini@konsulko.com>
[trini: Add CONFIG_OF_SUPPORT]
Signed-off-by: Tom Rini <trini@konsulko.com>

arch/arm/cpu/armv7/omap3/Kconfig

@@ -114,6 +114,13 @@ config TARGET_OMAP3_CAIRO
 	select DM_SERIAL
 	select DM_GPIO
 
+config TARGET_SNIPER
+	bool "Sniper"
+	select SUPPORT_SPL
+	select DM
+	select DM_SERIAL
+	select DM_GPIO
+
 endchoice
 
 config SYS_SOC
@@ -142,5 +149,6 @@ source "board/nokia/rx51/Kconfig"
 source "board/technexion/tao3530/Kconfig"
 source "board/technexion/twister/Kconfig"
 source "board/quipos/cairo/Kconfig"
+source "board/lge/sniper/Kconfig"
 
 endif

board/lge/sniper/Kconfig

+if TARGET_SNIPER
+
+config SYS_BOARD
+	default "sniper"
+
+config SYS_VENDOR
+	default "lge"
+
+config SYS_CONFIG_NAME
+	default "sniper"
+
+endif

board/lge/sniper/MAINTAINERS

+SNIPER BOARD
+M:	Paul Kocialkowski <contact@paulk.fr>
+S:	Maintained
+F:	board/lge/sniper/
+F:	include/configs/sniper.h
+F:	configs/sniper_defconfig

board/lge/sniper/Makefile

+#
+# LG Optimus Black (P970) codename sniper board
+#
+# Copyright (C) 2015 Paul Kocialkowski <contact@paulk.fr>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y := sniper.o

board/lge/sniper/sniper.c

+/*
+ * LG Optimus Black (P970) codename sniper board
+ *
+ * Copyright (C) 2015 Paul Kocialkowski <contact@paulk.fr>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <config.h>
+#include <common.h>
+#include <dm.h>
+#include <asm/arch/mmc_host_def.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/mem.h>
+#include <asm/io.h>
+#include <ns16550.h>
+#include <twl4030.h>
+#include "sniper.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+const omap3_sysinfo sysinfo = {
+	.mtype = DDR_STACKED,
+	.board_string = "Sniper",
+	.nand_string = "MMC"
+};
+
+static const struct ns16550_platdata serial_omap_platdata = {
+	.base = OMAP34XX_UART3,
+	.reg_shift = 2,
+	.clock = V_NS16550_CLK
+};
+
+U_BOOT_DEVICE(sniper_serial) = {
+	.name = "serial_omap",
+	.platdata = &serial_omap_platdata
+};
+
+#ifdef CONFIG_SPL_BUILD
+void get_board_mem_timings(struct board_sdrc_timings *timings)
+{
+	timings->mcfg = HYNIX_V_MCFG_200(256 << 20);
+	timings->ctrla = HYNIX_V_ACTIMA_200;
+	timings->ctrlb = HYNIX_V_ACTIMB_200;
+	timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
+	timings->mr = MICRON_V_MR_165;
+}
+#endif
+
+u32 get_board_rev(void)
+{
+	/* Sold devices are expected to be at least revision F. */
+	return 6;
+}
+
+int board_init(void)
+{
+	/* GPMC init */
+	gpmc_init();
+
+	/* MACH number */
+	gd->bd->bi_arch_number = 3000;
+
+	/* ATAGs location */
+	gd->bd->bi_boot_params = OMAP34XX_SDRC_CS0 + 0x100;
+
+	return 0;
+}
+
+void set_muxconf_regs(void)
+{
+	MUX_SNIPER();
+}
+
+#ifndef CONFIG_SPL_BUILD
+int board_mmc_init(bd_t *bis)
+{
+	return omap_mmc_init(1, 0, 0, -1, -1);
+}
+#endif
+
+void board_mmc_power_init(void)
+{
+	twl4030_power_mmc_init(1);
+}

configs/sniper_defconfig

+CONFIG_ARM=y
+CONFIG_OMAP34XX=y
+CONFIG_TARGET_SNIPER=y
+CONFIG_SPL=y
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_FPGA is not set

include/configs/sniper.h

+/*
+ * LG Optimus Black (P970) codename sniper config
+ *
+ * Copyright (C) 2015 Paul Kocialkowski <contact@paulk.fr>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#include <asm/arch/cpu.h>
+#include <asm/arch/omap.h>
+
+/*
+ * CPU
+ */
+
+#define CONFIG_SYS_CACHELINE_SIZE	64
+
+#define CONFIG_ARM_ARCH_CP15_ERRATA
+#define CONFIG_ARM_ERRATA_454179
+#define CONFIG_ARM_ERRATA_430973
+#define CONFIG_ARM_ERRATA_621766
+
+/*
+ * Platform
+ */
+
+#define CONFIG_OMAP
+#define CONFIG_OMAP_COMMON
+
+/*
+ * Board
+ */
+
+#define CONFIG_SYS_GENERIC_BOARD
+
+/*
+ * Clocks
+ */
+
+#define CONFIG_SYS_TIMERBASE	OMAP34XX_GPT2
+#define CONFIG_SYS_PTV		2
+
+#define V_NS16550_CLK		48000000
+#define V_OSCK			26000000
+#define V_SCLK			(V_OSCK >> 1)
+
+/*
+ * DRAM
+ */
+
+#define CONFIG_SDRC
+#define CONFIG_NR_DRAM_BANKS	2
+#define PHYS_SDRAM_1		OMAP34XX_SDRC_CS0
+#define PHYS_SDRAM_2		OMAP34XX_SDRC_CS1
+
+/*
+ * Memory
+ */
+
+#define CONFIG_SYS_TEXT_BASE		0x80100000
+#define CONFIG_SYS_SDRAM_BASE		OMAP34XX_SDRC_CS0
+#define CONFIG_SYS_INIT_RAM_ADDR	0x4020F800
+#define CONFIG_SYS_INIT_RAM_SIZE	0x800
+#define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_INIT_RAM_ADDR + \
+					 CONFIG_SYS_INIT_RAM_SIZE - \
+					 GENERATED_GBL_DATA_SIZE)
+
+#define CONFIG_SYS_MALLOC_LEN		(1024 * 1024 + CONFIG_ENV_SIZE)
+
+/*
+ * GPIO
+ */
+
+#define CONFIG_OMAP_GPIO
+#define CONFIG_OMAP3_GPIO_2
+#define CONFIG_OMAP3_GPIO_3
+#define CONFIG_OMAP3_GPIO_4
+#define CONFIG_OMAP3_GPIO_5
+#define CONFIG_OMAP3_GPIO_6
+
+/*
+ * I2C
+ */
+
+#define CONFIG_SYS_I2C
+#define CONFIG_SYS_OMAP24_I2C_SPEED	400000
+#define CONFIG_SYS_OMAP24_I2C_SLAVE	1
+#define CONFIG_SYS_I2C_OMAP34XX
+#define CONFIG_I2C_MULTI_BUS
+
+#define CONFIG_CMD_I2C
+
+/*
+ * Flash
+ */
+
+#define CONFIG_SYS_NO_FLASH
+
+/*
+ * MMC
+ */
+
+#define CONFIG_GENERIC_MMC
+#define CONFIG_MMC
+#define CONFIG_OMAP_HSMMC
+
+#define CONFIG_CMD_MMC
+
+/*
+ * Power
+ */
+
+#define CONFIG_TWL4030_POWER
+
+/*
+ * Input
+ */
+
+#define CONFIG_TWL4030_INPUT
+
+/*
+ * Partitions
+ */
+
+#define CONFIG_PARTITION_UUIDS
+#define CONFIG_DOS_PARTITION
+#define CONFIG_EFI_PARTITION
+
+#define CONFIG_CMD_PART
+
+/*
+ * Filesystems
+ */
+
+#define CONFIG_CMD_FS_GENERIC
+#define CONFIG_CMD_EXT2
+#define CONFIG_CMD_EXT4
+#define CONFIG_CMD_FAT
+
+/*
+ * SPL
+ */
+
+#define CONFIG_SPL_FRAMEWORK
+
+#define CONFIG_SPL_TEXT_BASE		0x40200000
+#define CONFIG_SPL_MAX_SIZE		(54 * 1024)
+#define CONFIG_SPL_BSS_START_ADDR	0x80000000
+#define CONFIG_SPL_BSS_MAX_SIZE		(512 * 1024)
+#define CONFIG_SYS_SPL_MALLOC_START	0x80208000
+#define CONFIG_SYS_SPL_MALLOC_SIZE	(1024 * 1024)
+#define CONFIG_SPL_STACK		LOW_LEVEL_SRAM_STACK
+
+#define CONFIG_SPL_LDSCRIPT		"$(CPUDIR)/omap-common/u-boot-spl.lds"
+#define CONFIG_SPL_BOARD_INIT
+
+#define CONFIG_SPL_LIBGENERIC_SUPPORT
+#define CONFIG_SPL_LIBCOMMON_SUPPORT
+#define CONFIG_SPL_LIBDISK_SUPPORT
+#define CONFIG_SPL_SERIAL_SUPPORT
+#define CONFIG_SPL_POWER_SUPPORT
+#define CONFIG_SPL_GPIO_SUPPORT
+#define CONFIG_SPL_I2C_SUPPORT
+#define CONFIG_SPL_MMC_SUPPORT
+#define CONFIG_SPL_FAT_SUPPORT
+
+#define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION	2
+
+#define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION		1
+#define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME			"u-boot.img"
+
+/*
+ * Console
+ */
+
+#define CONFIG_SYS_CONSOLE_IS_IN_ENV
+
+#define CONFIG_DISPLAY_CPUINFO
+#define CONFIG_DISPLAY_BOARDINFO
+
+#define CONFIG_AUTO_COMPLETE
+
+#define CONFIG_SYS_PROMPT	"Sniper # "
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_SYS_HUSH_PARSER
+
+#define CONFIG_SYS_MAXARGS	16
+#define CONFIG_SYS_CBSIZE	512
+#define CONFIG_SYS_PBSIZE	(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) \
+				 + 16)
+
+/*
+ * Serial
+ */
+
+
+#ifndef CONFIG_SPL_BUILD
+#define CONFIG_OMAP_SERIAL
+#else
+#define CONFIG_SYS_NS16550_SERIAL
+#define CONFIG_SYS_NS16550_REG_SIZE	(-4)
+#define CONFIG_SYS_NS16550_CLK		V_NS16550_CLK
+#endif
+
+#define CONFIG_SYS_NS16550
+#define CONFIG_SYS_NS16550_COM3		OMAP34XX_UART3
+#define CONFIG_CONS_INDEX		3
+#define CONFIG_SERIAL3			3
+
+#define CONFIG_BAUDRATE			115200
+#define CONFIG_SYS_BAUDRATE_TABLE	{ 4800, 9600, 19200, 38400, 57600, \
+					  115200 }
+
+/*
+ * Environment
+ */
+
+#define CONFIG_ENV_SIZE		(128 * 1024)
+#define CONFIG_ENV_IS_NOWHERE
+
+#define CONFIG_ENV_OVERWRITE
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	"kernel_addr_r=0x82000000\0" \
+	"boot_mmc_dev=0\0" \
+	"kernel_mmc_part=3\0" \
+	"recovery_mmc_part=4\0" \
+	"bootargs=console=ttyO2 vram=5M,0x9FA00000 omapfb.vram=0:5M\0"
+
+/*
+ * ATAGs / Device Tree
+ */
+
+#define CONFIG_OF_LIBFDT
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_CMDLINE_TAG
+#define CONFIG_INITRD_TAG
+#define CONFIG_REVISION_TAG
+
+/*
+ * Boot
+ */
+
+#define CONFIG_SYS_LOAD_ADDR	0x82000000
+#define CONFIG_BOOTDELAY	1
+
+#define CONFIG_ANDROID_BOOT_IMAGE
+
+#define CONFIG_BOOTCOMMAND \
+	"setenv boot_mmc_part ${kernel_mmc_part}; " \
+	"part start mmc ${boot_mmc_dev} ${boot_mmc_part} boot_mmc_start; " \
+	"part size mmc ${boot_mmc_dev} ${boot_mmc_part} boot_mmc_size; " \
+	"mmc dev ${boot_mmc_dev}; " \
+	"mmc read ${kernel_addr_r} ${boot_mmc_start} ${boot_mmc_size} && " \
+	"bootm ${kernel_addr_r};"
+
+/*
+ * Defaults
+ */
+
+#include <config_defaults.h>
+
+#endif