mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-18 07:58:52 +09:00
![Marek Vasut](/assets/img/avatar_default.png)
Make sure value in register r0 and r1 is preserved and passed to the board_init_ll() and mxs_common_spl_init() where it can be processed further. The value in r0 can be configured during the BootStream generation to arbitary value, r1 contains pointer to return value from CALL'd function. This patch also clears the value in r0 before returning to BootROM to make sure the BootROM is not confused by this value. Finally, this patch cleans up some comments in the start.S file. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de>
92 lines
3.1 KiB
C
92 lines
3.1 KiB
C
/*
|
|
* Olimex MX23 Olinuxino Boot setup
|
|
*
|
|
* Copyright (C) 2013 Marek Vasut <marex@denx.de>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <config.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/iomux-mx23.h>
|
|
#include <asm/arch/imx-regs.h>
|
|
#include <asm/arch/sys_proto.h>
|
|
|
|
#define MUX_CONFIG_EMI (MXS_PAD_3V3 | MXS_PAD_12MA | MXS_PAD_PULLUP)
|
|
#define MUX_CONFIG_SSP (MXS_PAD_8MA | MXS_PAD_PULLUP)
|
|
|
|
const iomux_cfg_t iomux_setup[] = {
|
|
/* DUART */
|
|
MX23_PAD_PWM0__DUART_RX,
|
|
MX23_PAD_PWM1__DUART_TX,
|
|
|
|
/* EMI */
|
|
MX23_PAD_EMI_D00__EMI_D00 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_D01__EMI_D01 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_D02__EMI_D02 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_D03__EMI_D03 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_D04__EMI_D04 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_D05__EMI_D05 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_D06__EMI_D06 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_D07__EMI_D07 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_D08__EMI_D08 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_D09__EMI_D09 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_D10__EMI_D10 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_D11__EMI_D11 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_D12__EMI_D12 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_D13__EMI_D13 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_D14__EMI_D14 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_D15__EMI_D15 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_DQM0__EMI_DQM0 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_DQM1__EMI_DQM1 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_DQS0__EMI_DQS0 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_DQS1__EMI_DQS1 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_CLK__EMI_CLK | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_CLKN__EMI_CLKN | MUX_CONFIG_EMI,
|
|
|
|
MX23_PAD_EMI_A00__EMI_A00 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_A01__EMI_A01 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_A02__EMI_A02 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_A03__EMI_A03 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_A04__EMI_A04 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_A05__EMI_A05 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_A06__EMI_A06 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_A07__EMI_A07 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_A08__EMI_A08 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_A09__EMI_A09 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_A10__EMI_A10 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_A11__EMI_A11 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_A12__EMI_A12 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_BA0__EMI_BA0 | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_BA1__EMI_BA1 | MUX_CONFIG_EMI,
|
|
|
|
MX23_PAD_EMI_CASN__EMI_CASN | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_CE0N__EMI_CE0N | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_CE1N__EMI_CE1N | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_CKE__EMI_CKE | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_RASN__EMI_RASN | MUX_CONFIG_EMI,
|
|
MX23_PAD_EMI_WEN__EMI_WEN | MUX_CONFIG_EMI,
|
|
|
|
/* Green LED */
|
|
MX23_PAD_SSP1_DETECT__GPIO_2_1 |
|
|
(MXS_PAD_3V3 | MXS_PAD_4MA | MXS_PAD_NOPULL),
|
|
|
|
/* MMC 0 */
|
|
MX23_PAD_SSP1_CMD__SSP1_CMD | MUX_CONFIG_SSP,
|
|
MX23_PAD_SSP1_DATA0__SSP1_DATA0 | MUX_CONFIG_SSP,
|
|
MX23_PAD_SSP1_DATA1__SSP1_DATA1 | MUX_CONFIG_SSP,
|
|
MX23_PAD_SSP1_DATA2__SSP1_DATA2 | MUX_CONFIG_SSP,
|
|
MX23_PAD_SSP1_DATA3__SSP1_DATA3 | MUX_CONFIG_SSP,
|
|
MX23_PAD_SSP1_SCK__SSP1_SCK | MUX_CONFIG_SSP,
|
|
|
|
/* Ethernet */
|
|
MX23_PAD_GPMI_ALE__GPIO_0_17 |
|
|
(MXS_PAD_3V3 | MXS_PAD_12MA | MXS_PAD_NOPULL),
|
|
};
|
|
|
|
void board_init_ll(const uint32_t arg, const uint32_t *resptr)
|
|
{
|
|
mxs_common_spl_init(arg, resptr, iomux_setup, ARRAY_SIZE(iomux_setup));
|
|
}
|