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https://github.com/smaeul/u-boot.git
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c74b2108e3
Add support for the following DaVinci boards: - DV_EVM - SCHMOOGIE - SONATA Changes: - Split into separate board directories - Removed changes to MTD_DEBUG (or whatever it's called) - New CONFIG_CMD party line followed - Some cosmetic fixes, cleanup etc. - Patches against the latest U-Boot tree as of now. - Fixed CONFIG_CMD_NET in net files. - Fixed CONFIG_CMD_EEPROM for schmoogie. - Made sure it compiles and works (forceenv() link problem) on SCHMOOGIE and DV_EVM. Can't check if it works on SONATA, don't have a board any more, but it at least compiles. Here is an excerpt from session log on SCHMOOGIE... U-Boot 1.2.0-g6c33c785-dirty (Aug 7 2007 - 13:07:17) DRAM: 128 MB NAND: 128 MiB In: serial Out: serial Err: serial ARM Clock : 297MHz DDR Clock : 162MHz ETH PHY : DP83848 @ 0x01 U-Boot > iprobe Valid chip addresses: 1B 38 3A 3D 3F 50 5D 6F U-Boot > ping 192.168.253.10 host 192.168.253.10 is alive U-Boot > Signed-off-by: Sergey Kubushyn <ksi@koi8.net> Acked-by: Dirk Behme <dirk.behme@gmail.com> Acked-by: Zach Sadecki <Zach.Sadecki@ripcode.com> Acked-by: Stefan Roese <sr@denx.de>
101 lines
2.2 KiB
ArmAsm
101 lines
2.2 KiB
ArmAsm
/*
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* Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
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*
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* Board-specific low level initialization code. Called at the very end
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* of cpu/arm926ejs/davinci/lowlevel_init.S. Just returns if there is no
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* initialization required.
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*
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* For _OLDER_ Sonata boards sets up GPIO4 to control NAND WP line. Newer
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* Sonata boards, AFAIK, don't use this so it's just return by default. Ask
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* Visioneering if they reinvented the wheel once again to make sure :)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <config.h>
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.globl dv_board_init
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dv_board_init:
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#ifdef SONATA_BOARD_GPIOWP
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/* Set PINMUX0 to enable GPIO4 */
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ldr r0, _PINMUX0
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ldr r1, GPIO4_EN_MASK
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ldr r2, [r0]
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and r2, r2, r1
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str r2, [r0]
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/* Enable GPIO LPSC module */
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ldr r0, PTSTAT
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gpio_ptstat_loop1:
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ldr r2, [r0]
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tst r2, $0x00000001
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bne gpio_ptstat_loop1
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ldr r1, MDCTL_GPIO
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ldr r2, [r1]
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and r2, r2, $0xfffffff8
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orr r2, r2, $0x00000003
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str r2, [r1]
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orr r2, r2, $0x00000200
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str r2, [r1]
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ldr r1, PTCMD
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mov r2, $0x00000001
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str r2, [r1]
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gpio_ptstat_loop2:
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ldr r2, [r0]
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tst r2, $0x00000001
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bne gpio_ptstat_loop2
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ldr r0, MDSTAT_GPIO
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gpio_mdstat_loop:
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ldr r2, [r0]
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and r2, r2, $0x0000001f
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teq r2, $0x00000003
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bne gpio_mdstat_loop
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/* GPIO4 -> output */
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ldr r0, GPIO_DIR01
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mov r1, $0x10
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ldr r2, [r0]
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bic r2, r2, r0
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str r2, [r0]
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/* Set it to 0 (Write Protect) */
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ldr r0, GPIO_CLR_DATA01
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str r1, [r0]
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#endif
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mov pc, lr
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#ifdef SONATA_BOARD_GPIOWP
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.ltorg
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GPIO4_EN_MASK:
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.word 0xf77fffff
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MDCTL_GPIO:
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.word 0x01c41a68
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MDSTAT_GPIO:
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.word 0x01c41868
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GPIO_DIR01:
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.word 0x01c67010
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GPIO_CLR_DATA01:
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.word 0x01c6701c
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#endif
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