From db5e443ad7dcb76cb03cea79e1072c558e1daa1d Mon Sep 17 00:00:00 2001 From: Ye Li Date: Fri, 24 Feb 2017 15:24:20 +0800 Subject: MLK-14250-4 mx6dq/dl/dqp: Add plugin boot support for sabre boards Add plugin.S for plugin boot initialization on mx6dq/dl/dqp sabresd and sabreauto boards. Need to set "CONFIG_USE_IMXIMG_PLUGIN" for this feature. Add the configurations for the plugin enabled buiding. Signed-off-by: Ye Li --- board/freescale/mx6sabresd/mx6dlsabresd.cfg | 11 +- board/freescale/mx6sabresd/mx6q_4x_mt41j128.cfg | 11 +- board/freescale/mx6sabresd/plugin.S | 682 ++++++++++++++++++++++++ 3 files changed, 702 insertions(+), 2 deletions(-) create mode 100644 board/freescale/mx6sabresd/plugin.S (limited to 'board/freescale/mx6sabresd') diff --git a/board/freescale/mx6sabresd/mx6dlsabresd.cfg b/board/freescale/mx6sabresd/mx6dlsabresd.cfg index be9f87f..9e2cbee 100644 --- a/board/freescale/mx6sabresd/mx6dlsabresd.cfg +++ b/board/freescale/mx6sabresd/mx6dlsabresd.cfg @@ -1,5 +1,5 @@ /* - * Copyright (C) 2014 Freescale Semiconductor, Inc. + * Copyright (C) 2014-2016 Freescale Semiconductor, Inc. * * SPDX-License-Identifier: GPL-2.0+ * @@ -9,6 +9,9 @@ * The syntax is taken as close as possible with the kwbimage */ +#define __ASSEMBLY__ +#include + /* image version */ IMAGE_VERSION 2 @@ -20,6 +23,11 @@ IMAGE_VERSION 2 BOOT_FROM sd +#ifdef CONFIG_USE_IMXIMG_PLUGIN +/*PLUGIN plugin-binary-file IRAM_FREE_START_ADDR*/ +PLUGIN board/freescale/mx6sabresd/plugin.bin 0x00907000 +#else + /* * Device Configuration Data (DCD) * @@ -129,3 +137,4 @@ DATA 4 0x020e0010 0xF00000CF /* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */ DATA 4 0x020e0018 0x007F007F DATA 4 0x020e001c 0x007F007F +#endif diff --git a/board/freescale/mx6sabresd/mx6q_4x_mt41j128.cfg b/board/freescale/mx6sabresd/mx6q_4x_mt41j128.cfg index bb6c60b..3f9b7c5 100644 --- a/board/freescale/mx6sabresd/mx6q_4x_mt41j128.cfg +++ b/board/freescale/mx6sabresd/mx6q_4x_mt41j128.cfg @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011 Freescale Semiconductor, Inc. + * Copyright (C) 2011-2016 Freescale Semiconductor, Inc. * Jason Liu * * SPDX-License-Identifier: GPL-2.0+ @@ -10,6 +10,9 @@ * The syntax is taken as close as possible with the kwbimage */ +#define __ASSEMBLY__ +#include + /* image version */ IMAGE_VERSION 2 @@ -19,6 +22,11 @@ IMAGE_VERSION 2 */ BOOT_FROM sd +#ifdef CONFIG_USE_IMXIMG_PLUGIN +/*PLUGIN plugin-binary-file IRAM_FREE_START_ADDR*/ +PLUGIN board/freescale/mx6sabresd/plugin.bin 0x00907000 +#else + /* * Device Configuration Data (DCD) * @@ -167,3 +175,4 @@ DATA 4 0x020e001c 0x007F007F * This sets CKO1 at ahb_clk_root/8 = 132/8 = 16.5 MHz */ DATA 4 0x020c4060 0x000000fb +#endif diff --git a/board/freescale/mx6sabresd/plugin.S b/board/freescale/mx6sabresd/plugin.S new file mode 100644 index 0000000..a45487f --- /dev/null +++ b/board/freescale/mx6sabresd/plugin.S @@ -0,0 +1,682 @@ +/* + * Copyright (C) 2012-2016 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include + +/* DDR script */ +.macro imx6dqpsabresd_ddr_setting + ldr r0, =IOMUXC_BASE_ADDR + ldr r1, =0x000c0000 + str r1, [r0, #0x798] + ldr r1, =0x00000000 + str r1, [r0, #0x758] + + ldr r1, =0x00000030 + str r1, [r0, #0x588] + str r1, [r0, #0x594] + str r1, [r0, #0x56c] + str r1, [r0, #0x578] + str r1, [r0, #0x74c] + str r1, [r0, #0x57c] + + ldr r1, =0x00000000 + str r1, [r0, #0x58c] + + ldr r1, =0x00000030 + str r1, [r0, #0x59c] + str r1, [r0, #0x5a0] + str r1, [r0, #0x78c] + + ldr r1, =0x00020000 + str r1, [r0, #0x750] + + ldr r1, =0x00000030 + str r1, [r0, #0x5a8] + str r1, [r0, #0x5b0] + str r1, [r0, #0x524] + str r1, [r0, #0x51c] + str r1, [r0, #0x518] + str r1, [r0, #0x50c] + str r1, [r0, #0x5b8] + str r1, [r0, #0x5c0] + + ldr r1, =0x00018200 + str r1, [r0, #0x534] + ldr r1, =0x00008000 + str r1, [r0, #0x538] + ldr r1, =0x00018200 + str r1, [r0, #0x53c] + str r1, [r0, #0x540] + str r1, [r0, #0x544] + str r1, [r0, #0x548] + str r1, [r0, #0x54c] + str r1, [r0, #0x550] + + ldr r1, =0x00020000 + str r1, [r0, #0x774] + + ldr r1, =0x00000030 + str r1, [r0, #0x784] + str r1, [r0, #0x788] + str r1, [r0, #0x794] + str r1, [r0, #0x79c] + str r1, [r0, #0x7a0] + str r1, [r0, #0x7a4] + str r1, [r0, #0x7a8] + str r1, [r0, #0x748] + str r1, [r0, #0x5ac] + str r1, [r0, #0x5b4] + str r1, [r0, #0x528] + str r1, [r0, #0x520] + str r1, [r0, #0x514] + str r1, [r0, #0x510] + str r1, [r0, #0x5bc] + str r1, [r0, #0x5c4] + + ldr r0, =MMDC_P0_BASE_ADDR + ldr r2, =0xa1390003 + str r2, [r0, #0x800] + + ldr r2, =0x001b001e + str r2, [r0, #0x80c] + ldr r2, =0x002e0029 + str r2, [r0, #0x810] + + ldr r1, =MMDC_P1_BASE_ADDR + ldr r2, =0x001b002a + str r2, [r1, #0x80c] + ldr r2, =0x0019002c + str r2, [r1, #0x810] + + ldr r2, =0x43240334 + str r2, [r0, #0x83c] + ldr r2, =0x0324031a + str r2, [r0, #0x840] + + ldr r2, =0x43340344 + str r2, [r1, #0x83c] + ldr r2, =0x03280276 + str r2, [r1, #0x840] + + ldr r2, =0x44383A3E + str r2, [r0, #0x848] + ldr r2, =0x3C3C3846 + str r2, [r1, #0x848] + + ldr r2, =0x2e303230 + str r2, [r0, #0x850] + ldr r2, =0x38283E34 + str r2, [r1, #0x850] + + ldr r2, =0x33333333 + str r2, [r0, #0x81c] + str r2, [r0, #0x820] + str r2, [r0, #0x824] + str r2, [r0, #0x828] + str r2, [r1, #0x81c] + str r2, [r1, #0x820] + str r2, [r1, #0x824] + str r2, [r1, #0x828] + + ldr r2, =0x24912489 + str r2, [r0, #0x8c0] + ldr r2, =0x24914452 + str r2, [r1, #0x8c0] + + ldr r2, =0x00000800 + str r2, [r0, #0x8b8] + str r2, [r1, #0x8b8] + + ldr r2, =0x00020036 + str r2, [r0, #0x004] + ldr r2, =0x24444040 + str r2, [r0, #0x008] + + ldr r2, =0x555A7955 + str r2, [r0, #0x00c] + ldr r2, =0xFF320F64 + str r2, [r0, #0x010] + + ldr r2, =0x01FF00DB + str r2, [r0, #0x014] + ldr r2, =0x00011740 + str r2, [r0, #0x018] + + ldr r2, =0x00008000 + str r2, [r0, #0x01c] + ldr r2, =0x000026d2 + str r2, [r0, #0x02c] + ldr r2, =0x005A1023 + str r2, [r0, #0x030] + ldr r2, =0x00000027 + str r2, [r0, #0x040] + + ldr r2, =0x14420000 + str r2, [r0, #0x400] + + ldr r2, =0x831A0000 + str r2, [r0, #0x000] + + ldr r2, =0x00400C58 + str r2, [r0, #0x890] + + ldr r3, =0x00bb0000 + ldr r2, =0x00000000 + str r2, [r3, #0x008] + ldr r2, =0x2891E41A + str r2, [r3, #0x00C] + ldr r2, =0x00000564 + str r2, [r3, #0x038] + ldr r2, =0x00000040 + str r2, [r3, #0x014] + ldr r2, =0x00000020 + str r2, [r3, #0x028] + ldr r2, =0x00000020 + str r2, [r3, #0x02c] + + ldr r2, =0x04088032 + str r2, [r0, #0x01c] + ldr r2, =0x00008033 + str r2, [r0, #0x01c] + ldr r2, =0x00048031 + str r2, [r0, #0x01c] + ldr r2, =0x09408030 + str r2, [r0, #0x01c] + ldr r2, =0x04008040 + str r2, [r0, #0x01c] + + ldr r2, =0x00005800 + str r2, [r0, #0x020] + ldr r2, =0x00011117 + str r2, [r0, #0x818] + str r2, [r1, #0x818] + ldr r2, =0x00025576 + str r2, [r0, #0x004] + ldr r2, =0x00011006 + str r2, [r0, #0x404] + ldr r2, =0x00000000 + str r2, [r0, #0x01c] +.endm + +.macro imx6dqsabresd_ddr_setting + ldr r0, =IOMUXC_BASE_ADDR + ldr r1, =0x000c0000 + str r1, [r0, #0x798] + ldr r1, =0x00000000 + str r1, [r0, #0x758] + + ldr r1, =0x00000030 + str r1, [r0, #0x588] + str r1, [r0, #0x594] + str r1, [r0, #0x56c] + str r1, [r0, #0x578] + str r1, [r0, #0x74c] + str r1, [r0, #0x57c] + + ldr r1, =0x00000000 + str r1, [r0, #0x58c] + + ldr r1, =0x00000030 + str r1, [r0, #0x59c] + str r1, [r0, #0x5a0] + str r1, [r0, #0x78c] + + ldr r1, =0x00020000 + str r1, [r0, #0x750] + + ldr r1, =0x00000030 + str r1, [r0, #0x5a8] + str r1, [r0, #0x5b0] + str r1, [r0, #0x524] + str r1, [r0, #0x51c] + str r1, [r0, #0x518] + str r1, [r0, #0x50c] + str r1, [r0, #0x5b8] + str r1, [r0, #0x5c0] + + ldr r1, =0x00020000 + str r1, [r0, #0x774] + + ldr r1, =0x00000030 + str r1, [r0, #0x784] + str r1, [r0, #0x788] + str r1, [r0, #0x794] + str r1, [r0, #0x79c] + str r1, [r0, #0x7a0] + str r1, [r0, #0x7a4] + str r1, [r0, #0x7a8] + str r1, [r0, #0x748] + str r1, [r0, #0x5ac] + str r1, [r0, #0x5b4] + str r1, [r0, #0x528] + str r1, [r0, #0x520] + str r1, [r0, #0x514] + str r1, [r0, #0x510] + str r1, [r0, #0x5bc] + str r1, [r0, #0x5c4] + + ldr r0, =MMDC_P0_BASE_ADDR + ldr r2, =0xa1390003 + str r2, [r0, #0x800] + + ldr r2, =0x001F001F + str r2, [r0, #0x80c] + str r2, [r0, #0x810] + ldr r1, =MMDC_P1_BASE_ADDR + str r2, [r1, #0x80c] + str r2, [r1, #0x810] + + ldr r2, =0x43270338 + str r2, [r0, #0x83c] + ldr r2, =0x03200314 + str r2, [r0, #0x840] + + ldr r2, =0x431A032F + str r2, [r1, #0x83c] + ldr r2, =0x03200263 + str r2, [r1, #0x840] + + ldr r2, =0x4B434748 + str r2, [r0, #0x848] + ldr r2, =0x4445404C + str r2, [r1, #0x848] + + ldr r2, =0x38444542 + str r2, [r0, #0x850] + ldr r2, =0x4935493A + str r2, [r1, #0x850] + + ldr r2, =0x33333333 + str r2, [r0, #0x81c] + str r2, [r0, #0x820] + str r2, [r0, #0x824] + str r2, [r0, #0x828] + str r2, [r1, #0x81c] + str r2, [r1, #0x820] + str r2, [r1, #0x824] + str r2, [r1, #0x828] + + ldr r2, =0x00000800 + str r2, [r0, #0x8b8] + str r2, [r1, #0x8b8] + + ldr r2, =0x00020036 + str r2, [r0, #0x004] + ldr r2, =0x09444040 + str r2, [r0, #0x008] + + ldr r2, =0x555A7975 + str r2, [r0, #0x00c] + ldr r2, =0xFF538F64 + str r2, [r0, #0x010] + + ldr r2, =0x01FF00DB + str r2, [r0, #0x014] + ldr r2, =0x00001740 + str r2, [r0, #0x018] + + ldr r2, =0x00008000 + str r2, [r0, #0x01c] + ldr r2, =0x000026d2 + str r2, [r0, #0x02c] + ldr r2, =0x005A1023 + str r2, [r0, #0x030] + ldr r2, =0x00000027 + str r2, [r0, #0x040] + + ldr r2, =0x831A0000 + str r2, [r0, #0x000] + + ldr r2, =0x04088032 + str r2, [r0, #0x01c] + ldr r2, =0x00008033 + str r2, [r0, #0x01c] + ldr r2, =0x00048031 + str r2, [r0, #0x01c] + ldr r2, =0x09408030 + str r2, [r0, #0x01c] + ldr r2, =0x04008040 + str r2, [r0, #0x01c] + + ldr r2, =0x00005800 + str r2, [r0, #0x020] + ldr r2, =0x00011117 + str r2, [r0, #0x818] + str r2, [r1, #0x818] + ldr r2, =0x00025576 + str r2, [r0, #0x004] + ldr r2, =0x00011006 + str r2, [r0, #0x404] + ldr r2, =0x00000000 + str r2, [r0, #0x01c] +.endm + +.macro imx6dlsabresd_ddr_setting + ldr r0, =IOMUXC_BASE_ADDR + ldr r1, =0x000c0000 + str r1, [r0, #0x774] + ldr r1, =0x00000000 + str r1, [r0, #0x754] + + ldr r1, =0x00000030 + str r1, [r0, #0x4ac] + str r1, [r0, #0x4b0] + str r1, [r0, #0x464] + str r1, [r0, #0x490] + str r1, [r0, #0x74c] + str r1, [r0, #0x494] + + ldr r1, =0x00000000 + str r1, [r0, #0x4a0] + + ldr r1, =0x00000030 + str r1, [r0, #0x4b4] + str r1, [r0, #0x4b8] + str r1, [r0, #0x76c] + + ldr r1, =0x00020000 + str r1, [r0, #0x750] + + ldr r1, =0x00000030 + str r1, [r0, #0x4bc] + str r1, [r0, #0x4c0] + str r1, [r0, #0x4c4] + str r1, [r0, #0x4c8] + str r1, [r0, #0x4cc] + str r1, [r0, #0x4d0] + str r1, [r0, #0x4d4] + str r1, [r0, #0x4d8] + + ldr r1, =0x00020000 + str r1, [r0, #0x760] + + ldr r1, =0x00000030 + str r1, [r0, #0x764] + str r1, [r0, #0x770] + str r1, [r0, #0x778] + str r1, [r0, #0x77c] + str r1, [r0, #0x780] + str r1, [r0, #0x784] + str r1, [r0, #0x78c] + str r1, [r0, #0x748] + str r1, [r0, #0x470] + str r1, [r0, #0x474] + str r1, [r0, #0x478] + str r1, [r0, #0x47c] + str r1, [r0, #0x480] + str r1, [r0, #0x484] + str r1, [r0, #0x488] + str r1, [r0, #0x48c] + + ldr r0, =MMDC_P0_BASE_ADDR + ldr r2, =0xa1390003 + str r2, [r0, #0x800] + + ldr r2, =0x001f001f + str r2, [r0, #0x80c] + str r2, [r0, #0x810] + ldr r1, =MMDC_P1_BASE_ADDR + str r2, [r1, #0x80c] + str r2, [r1, #0x810] + + ldr r2, =0x4220021F + str r2, [r0, #0x83c] + ldr r2, =0x0207017E + str r2, [r0, #0x840] + + ldr r2, =0x4201020C + str r2, [r1, #0x83c] + ldr r2, =0x01660172 + str r2, [r1, #0x840] + + ldr r2, =0x4A4D4E4D + str r2, [r0, #0x848] + ldr r2, =0x4A4F5049 + str r2, [r1, #0x848] + + ldr r2, =0x3F3C3D31 + str r2, [r0, #0x850] + ldr r2, =0x3238372B + str r2, [r1, #0x850] + + ldr r2, =0x33333333 + str r2, [r0, #0x81c] + str r2, [r0, #0x820] + str r2, [r0, #0x824] + str r2, [r0, #0x828] + str r2, [r1, #0x81c] + str r2, [r1, #0x820] + str r2, [r1, #0x824] + str r2, [r1, #0x828] + + ldr r2, =0x00000800 + str r2, [r0, #0x8b8] + str r2, [r1, #0x8b8] + + ldr r2, =0x0002002D + str r2, [r0, #0x004] + ldr r2, =0x00333030 + str r2, [r0, #0x008] + + ldr r2, =0x3F435313 + str r2, [r0, #0x00c] + ldr r2, =0xB66E8B63 + str r2, [r0, #0x010] + + ldr r2, =0x01FF00DB + str r2, [r0, #0x014] + ldr r2, =0x00001740 + str r2, [r0, #0x018] + + ldr r2, =0x00008000 + str r2, [r0, #0x01c] + ldr r2, =0x000026d2 + str r2, [r0, #0x02c] + ldr r2, =0x00431023 + str r2, [r0, #0x030] + ldr r2, =0x00000027 + str r2, [r0, #0x040] + + ldr r2, =0x831A0000 + str r2, [r0, #0x000] + + ldr r2, =0x04008032 + str r2, [r0, #0x01c] + ldr r2, =0x00008033 + str r2, [r0, #0x01c] + ldr r2, =0x00048031 + str r2, [r0, #0x01c] + ldr r2, =0x05208030 + str r2, [r0, #0x01c] + ldr r2, =0x04008040 + str r2, [r0, #0x01c] + + ldr r2, =0x00005800 + str r2, [r0, #0x020] + ldr r2, =0x00011117 + str r2, [r0, #0x818] + str r2, [r1, #0x818] + ldr r2, =0x0002556D + str r2, [r0, #0x004] + ldr r2, =0x00011006 + str r2, [r0, #0x404] + ldr r2, =0x00000000 + str r2, [r0, #0x01c] +.endm + +.macro imx6solosabresd_ddr_setting + ldr r0, =IOMUXC_BASE_ADDR + ldr r1, =0x000c0000 + str r1, [r0, #0x774] + ldr r1, =0x00000000 + str r1, [r0, #0x754] + + ldr r1, =0x00000030 + str r1, [r0, #0x4ac] + str r1, [r0, #0x4b0] + str r1, [r0, #0x464] + str r1, [r0, #0x490] + str r1, [r0, #0x74c] + str r1, [r0, #0x494] + + ldr r1, =0x00000000 + str r1, [r0, #0x4a0] + + ldr r1, =0x00000030 + str r1, [r0, #0x4b4] + str r1, [r0, #0x4b8] + str r1, [r0, #0x76c] + + ldr r1, =0x00020000 + str r1, [r0, #0x750] + + ldr r1, =0x00000030 + str r1, [r0, #0x4bc] + str r1, [r0, #0x4c0] + str r1, [r0, #0x4c4] + str r1, [r0, #0x4c8] + + ldr r1, =0x00020000 + str r1, [r0, #0x760] + + ldr r1, =0x00000030 + str r1, [r0, #0x764] + str r1, [r0, #0x770] + str r1, [r0, #0x778] + str r1, [r0, #0x77c] + str r1, [r0, #0x470] + str r1, [r0, #0x474] + str r1, [r0, #0x478] + str r1, [r0, #0x47c] + + ldr r0, =MMDC_P0_BASE_ADDR + ldr r2, =0xa1390003 + str r2, [r0, #0x800] + + ldr r2, =0x001F001F + str r2, [r0, #0x80c] + str r2, [r0, #0x810] + + ldr r2, =0x42190219 + str r2, [r0, #0x83c] + ldr r2, =0x017B0177 + str r2, [r0, #0x840] + + ldr r2, =0x4B4D4E4D + str r2, [r0, #0x848] + + ldr r2, =0x3F3E2D36 + str r2, [r0, #0x850] + + ldr r2, =0x33333333 + str r2, [r0, #0x81c] + str r2, [r0, #0x820] + str r2, [r0, #0x824] + str r2, [r0, #0x828] + + ldr r2, =0x00000800 + str r2, [r0, #0x8b8] + + ldr r2, =0x0002002D + str r2, [r0, #0x004] + ldr r2, =0x00333030 + str r2, [r0, #0x008] + + ldr r2, =0x3F435313 + str r2, [r0, #0x00c] + ldr r2, =0xB66E8B63 + str r2, [r0, #0x010] + + ldr r2, =0x01FF00DB + str r2, [r0, #0x014] + ldr r2, =0x00001740 + str r2, [r0, #0x018] + + ldr r2, =0x00008000 + str r2, [r0, #0x01c] + ldr r2, =0x000026d2 + str r2, [r0, #0x02c] + ldr r2, =0x00431023 + str r2, [r0, #0x030] + ldr r2, =0x00000017 + str r2, [r0, #0x040] + + ldr r2, =0x83190000 + str r2, [r0, #0x000] + + ldr r2, =0x04008032 + str r2, [r0, #0x01c] + ldr r2, =0x00008033 + str r2, [r0, #0x01c] + ldr r2, =0x00048031 + str r2, [r0, #0x01c] + ldr r2, =0x05208030 + str r2, [r0, #0x01c] + ldr r2, =0x04008040 + str r2, [r0, #0x01c] + + ldr r2, =0x00005800 + str r2, [r0, #0x020] + ldr r2, =0x00011117 + str r2, [r0, #0x818] + ldr r2, =0x0002556D + str r2, [r0, #0x004] + ldr r2, =0x00011006 + str r2, [r0, #0x404] + ldr r2, =0x00000000 + str r2, [r0, #0x01c] +.endm +.macro imx6_clock_gating + ldr r0, =CCM_BASE_ADDR + ldr r1, =0x00C03F3F + str r1, [r0, #0x068] + ldr r1, =0x0030FC03 + str r1, [r0, #0x06c] + ldr r1, =0x0FFFC000 + str r1, [r0, #0x070] + ldr r1, =0x3FF00000 + str r1, [r0, #0x074] + ldr r1, =0x00FFF300 + str r1, [r0, #0x078] + ldr r1, =0x0F0000C3 + str r1, [r0, #0x07c] + ldr r1, =0x000003FF + str r1, [r0, #0x080] +.endm + +.macro imx6_qos_setting + ldr r0, =IOMUXC_BASE_ADDR + ldr r1, =0xF00000CF + str r1, [r0, #0x10] + +#if defined(CONFIG_MX6QP) + ldr r1, =0x77177717 + str r1, [r0, #0x18] + str r1, [r0, #0x1c] +#else + ldr r1, =0x007F007F + str r1, [r0, #0x18] + str r1, [r0, #0x1c] +#endif +.endm + +.macro imx6_ddr_setting +#if defined (CONFIG_MX6SOLO) + imx6solosabresd_ddr_setting +#elif defined (CONFIG_MX6DL) + imx6dlsabresd_ddr_setting +#elif defined (CONFIG_MX6QP) + imx6dqpsabresd_ddr_setting +#elif defined (CONFIG_MX6Q) + imx6dqsabresd_ddr_setting +#else + #error "SOC not configured" +#endif + +.endm + +/* include the common plugin code here */ +#include -- cgit v1.1