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iMX28: Initial support for iMX28 CPU This patch supports: - Timers - Debug UART - Clock Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Detlev Zundel <dzu@denx.de>
2011-11-08 23:18:08 +00:00
/*
mxs: Replace i.MX233 by i.MX23 on copyright header All other header are going to use i.MX23 so we change this for consistency. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2012-08-19 04:58:28 +00:00
* Freescale i.MX23/i.MX28 specific functions
iMX28: Initial support for iMX28 CPU This patch supports: - Timers - Debug UART - Clock Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Detlev Zundel <dzu@denx.de>
2011-11-08 23:18:08 +00:00
*
* Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
* on behalf of DENX Software Engineering GmbH
*
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
2013-07-08 07:37:19 +00:00
* SPDX-License-Identifier: GPL-2.0+
iMX28: Initial support for iMX28 CPU This patch supports: - Timers - Debug UART - Clock Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Detlev Zundel <dzu@denx.de>
2011-11-08 23:18:08 +00:00
*/
imx-common: consolidate macros and prototypes into sys_proto.h Move most macro definitions and prototypes into "arch/arm/include/asm/imx-common/sys_proto.h" to avoid duplicated function prototypes and marco definitions for different i.MX SoCs. This patch do not remove the sys_proto.h for different i.MX SoCs, because we need to modify lots of driver code and others. This patch remove duplicated macros and prototypes and incude "sys_proto.h" of imx-common for each sys_proto.h of different i.MX platforms. Then later we should avoid add stuff in sys_proto.h of each platform, and modify driver to include common sys_proto.h. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Reviewed-by: Stefano Babic <sbabic@denx.de>
2015-08-13 02:55:34 +00:00
#ifndef __MXS_SYS_PROTO_H__
#define __MXS_SYS_PROTO_H__
iMX28: Initial support for iMX28 CPU This patch supports: - Timers - Debug UART - Clock Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Detlev Zundel <dzu@denx.de>
2011-11-08 23:18:08 +00:00
imx-common: consolidate macros and prototypes into sys_proto.h Move most macro definitions and prototypes into "arch/arm/include/asm/imx-common/sys_proto.h" to avoid duplicated function prototypes and marco definitions for different i.MX SoCs. This patch do not remove the sys_proto.h for different i.MX SoCs, because we need to modify lots of driver code and others. This patch remove duplicated macros and prototypes and incude "sys_proto.h" of imx-common for each sys_proto.h of different i.MX platforms. Then later we should avoid add stuff in sys_proto.h of each platform, and modify driver to include common sys_proto.h. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Reviewed-by: Stefano Babic <sbabic@denx.de>
2015-08-13 02:55:34 +00:00
#include <asm/imx-common/sys_proto.h>
iMX28: Initial support for iMX28 CPU This patch supports: - Timers - Debug UART - Clock Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Detlev Zundel <dzu@denx.de>
2011-11-08 23:18:08 +00:00
mxs: mmc: Allow overriding default card detect implementation Some MXS based boards do not implement the card-detect signal. Allow user to specify alternate card-detect implementation. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de>
2013-01-22 15:01:03 +00:00
int mxsmmc_initialize(bd_t *bis, int id, int (*wp)(int), int (*cd)(int));
iMX28: Add SSP MMC driver Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Andy Fleming <afleming@gmail.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Detlev Zundel <dzu@denx.de> Acked-by: Andy Fleming <afleming@gmail.com>
2011-11-08 23:18:09 +00:00
i.MX28: Move SPL to arch/arm/cpu/arm926ejs/mx28 This moves SPL to common location so it can be reused by multiple boards. Also, this commit adjusts M28 SoM to avoid breakage due to the move. Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Wolfgang Denk <wd@denx.de> Cc: Detlev Zundel <dzu@denx.de> Cc: Stefano Babic <sbabic@denx.de>
2011-12-02 03:47:40 +00:00
#ifdef CONFIG_SPL_BUILD
mx23: Add iomux-mx23.h This has been copied from Linux source at revision 786f02b719f. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de>
2013-01-11 03:19:05 +00:00
#if defined(CONFIG_MX23)
#include <asm/arch/iomux-mx23.h>
#elif defined(CONFIG_MX28)
i.MX28: Move SPL to arch/arm/cpu/arm926ejs/mx28 This moves SPL to common location so it can be reused by multiple boards. Also, this commit adjusts M28 SoM to avoid breakage due to the move. Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Wolfgang Denk <wd@denx.de> Cc: Detlev Zundel <dzu@denx.de> Cc: Stefano Babic <sbabic@denx.de>
2011-12-02 03:47:40 +00:00
#include <asm/arch/iomux-mx28.h>
mx23: Add iomux-mx23.h This has been copied from Linux source at revision 786f02b719f. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de>
2013-01-11 03:19:05 +00:00
#endif
ARM: mxs: Receive r0 and r1 passed from BootROM 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>
2013-08-31 13:53:44 +00:00
void mxs_common_spl_init(const uint32_t arg, const uint32_t *resptr,
const iomux_cfg_t *iomux_setup,
const unsigned int iomux_size);
ARM: mxs: allow boards to select DC-DC switching clock source For some board designs, it might be useful to switch the DC-DC clock source to something else rather the default 24 MHz, e.g. for EMI reasons. For this, override the mxs_power_setup_dcdc_clocksource function in your board support files. Example: void mxs_power_setup_dcdc_clocksource(void) { mxs_power_switch_dcdc_clocksource(POWER_MISC_FREQSEL_20MHZ); } Signed-off-by: Michael Heimpold <mhei@heimpold.de> Cc: Marek Vasut <marex@denx.de> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Marek Vasut <marex@denx.de>
2015-12-13 11:08:37 +00:00
void mxs_power_switch_dcdc_clocksource(uint32_t freqsel);
i.MX28: Move SPL to arch/arm/cpu/arm926ejs/mx28 This moves SPL to common location so it can be reused by multiple boards. Also, this commit adjusts M28 SoM to avoid breakage due to the move. Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Wolfgang Denk <wd@denx.de> Cc: Detlev Zundel <dzu@denx.de> Cc: Stefano Babic <sbabic@denx.de>
2011-12-02 03:47:40 +00:00
#endif
mxs: Convert sys_proto.h prefixes to 'mxs' The sys_proto.h functions (except the boot modes) are compatible with i.MX233 and i.MX28 so we use 'mxs' prefix for its methods. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2012-08-13 09:53:12 +00:00
struct mxs_pair {
i.MX28: Implement boot pads sampling and reporting This patch implements code that samples i.MX28 boot pads and reports boot mode accordingly. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Detlev Zundel <dzu@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de>
2012-05-01 11:09:45 +00:00
uint8_t boot_pads;
uint8_t boot_mask;
const char *mode;
};
mxs: Convert sys_proto.h prefixes to 'mxs' The sys_proto.h functions (except the boot modes) are compatible with i.MX233 and i.MX28 so we use 'mxs' prefix for its methods. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2012-08-13 09:53:12 +00:00
static const struct mxs_pair mxs_boot_modes[] = {
mx23: Add boot mode description Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Stefano Babic <sbabic@denx.de>
2013-01-11 03:19:09 +00:00
#if defined(CONFIG_MX23)
{ 0x00, 0x0f, "USB" },
{ 0x01, 0x1f, "I2C, master" },
{ 0x02, 0x1f, "SSP SPI #1, master, NOR" },
{ 0x03, 0x1f, "SSP SPI #2, master, NOR" },
{ 0x04, 0x1f, "NAND" },
ARM: mxs: Setup stack in JTAG mode In case the MX23/MX28 is switched into JTAG mode via the BootMode select switches, the BootROM bypasses the CPU core registers initialization. This in turn means that the Stack Pointer (SP) register is not set as it is in every other mode of operation, but instead is only zeroed out. To prevent U-Boot SPL from crashing in this obscure JTAG mode, configure the SP to point at the CONFIG_SYS_INIT_SP_ADDR if the SP is zeroed out. Note that in case the SP is already configured, we must preserve that exact SP value and must not modify it. This is important since in every other mode but the JTAG mode, the SPL returns into the BootROM and BootROM in turn loads U-Boot itself. If the SP were to be corrupted, the BootROM won't be able to continue it's operation after returned from SPL and the system would crash. Finally, add the JTAG mode switch identifier, so it's not recognised as Unknown mode. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Otavio Salvador <otavio@ossystems.com.br>
2013-09-19 23:36:44 +00:00
{ 0x06, 0x1f, "JTAG" },
mx23: Add boot mode description Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Stefano Babic <sbabic@denx.de>
2013-01-11 03:19:09 +00:00
{ 0x08, 0x1f, "SSP SPI #3, master, EEPROM" },
{ 0x09, 0x1f, "SSP SD/MMC #0" },
{ 0x0a, 0x1f, "SSP SD/MMC #1" },
{ 0x00, 0x00, "Reserved/Unknown/Wrong" },
#elif defined(CONFIG_MX28)
i.MX28: Implement boot pads sampling and reporting This patch implements code that samples i.MX28 boot pads and reports boot mode accordingly. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Detlev Zundel <dzu@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de>
2012-05-01 11:09:45 +00:00
{ 0x00, 0x0f, "USB #0" },
{ 0x01, 0x1f, "I2C #0, master, 3V3" },
{ 0x11, 0x1f, "I2C #0, master, 1V8" },
{ 0x02, 0x1f, "SSP SPI #2, master, 3V3 NOR" },
{ 0x12, 0x1f, "SSP SPI #2, master, 1V8 NOR" },
{ 0x03, 0x1f, "SSP SPI #3, master, 3V3 NOR" },
{ 0x13, 0x1f, "SSP SPI #3, master, 1V8 NOR" },
{ 0x04, 0x1f, "NAND, 3V3" },
{ 0x14, 0x1f, "NAND, 1V8" },
ARM: mxs: Setup stack in JTAG mode In case the MX23/MX28 is switched into JTAG mode via the BootMode select switches, the BootROM bypasses the CPU core registers initialization. This in turn means that the Stack Pointer (SP) register is not set as it is in every other mode of operation, but instead is only zeroed out. To prevent U-Boot SPL from crashing in this obscure JTAG mode, configure the SP to point at the CONFIG_SYS_INIT_SP_ADDR if the SP is zeroed out. Note that in case the SP is already configured, we must preserve that exact SP value and must not modify it. This is important since in every other mode but the JTAG mode, the SPL returns into the BootROM and BootROM in turn loads U-Boot itself. If the SP were to be corrupted, the BootROM won't be able to continue it's operation after returned from SPL and the system would crash. Finally, add the JTAG mode switch identifier, so it's not recognised as Unknown mode. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Otavio Salvador <otavio@ossystems.com.br>
2013-09-19 23:36:44 +00:00
{ 0x06, 0x1f, "JTAG" },
i.MX28: Implement boot pads sampling and reporting This patch implements code that samples i.MX28 boot pads and reports boot mode accordingly. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Detlev Zundel <dzu@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de>
2012-05-01 11:09:45 +00:00
{ 0x08, 0x1f, "SSP SPI #3, master, 3V3 EEPROM" },
{ 0x18, 0x1f, "SSP SPI #3, master, 1V8 EEPROM" },
{ 0x09, 0x1f, "SSP SD/MMC #0, 3V3" },
{ 0x19, 0x1f, "SSP SD/MMC #0, 1V8" },
{ 0x0a, 0x1f, "SSP SD/MMC #1, 3V3" },
{ 0x1a, 0x1f, "SSP SD/MMC #1, 1V8" },
{ 0x00, 0x00, "Reserved/Unknown/Wrong" },
mx23: Add boot mode description Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Stefano Babic <sbabic@denx.de>
2013-01-11 03:19:09 +00:00
#endif
i.MX28: Implement boot pads sampling and reporting This patch implements code that samples i.MX28 boot pads and reports boot mode accordingly. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Detlev Zundel <dzu@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de>
2012-05-01 11:09:45 +00:00
};
arm: mxs: Add 'Wait for JTAG user' if booted in JTAG mode When booting in JTAG mode, there is no way to use soft break-points, and no way of knowing when SPL has finished executing (so the user can issue a 'halt' command to load u-boot.bin for example) Add a debug output and simple loop to stop execution at the completion of the SPL initialisation as a pseudo break-point when booting in JTAG mode Signed-off-by: Graeme Russ <gruss@tss-engineering.com>
2015-01-25 01:07:53 +00:00
#define MXS_BM_USB 0x00
#define MXS_BM_I2C_MASTER_3V3 0x01
#define MXS_BM_I2C_MASTER_1V8 0x11
#define MXS_BM_SPI2_MASTER_3V3_NOR 0x02
#define MXS_BM_SPI2_MASTER_1V8_NOR 0x12
#define MXS_BM_SPI3_MASTER_3V3_NOR 0x03
#define MXS_BM_SPI3_MASTER_1V8_NOR 0x13
#define MXS_BM_NAND_3V3 0x04
#define MXS_BM_NAND_1V8 0x14
#define MXS_BM_JTAG 0x06
#define MXS_BM_SPI3_MASTER_3V3_EEPROM 0x08
#define MXS_BM_SPI3_MASTER_1V8_EEPROM 0x18
#define MXS_BM_SDMMC0_3V3 0x09
#define MXS_BM_SDMMC0_1V8 0x19
#define MXS_BM_SDMMC1_3V3 0x0a
#define MXS_BM_SDMMC1_1V8 0x1a
mxs: Reowork SPL to use 'mxs' prefix for methods Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2012-08-05 09:05:32 +00:00
struct mxs_spl_data {
i.MX28: Implement boot pads sampling and reporting This patch implements code that samples i.MX28 boot pads and reports boot mode accordingly. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Detlev Zundel <dzu@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de>
2012-05-01 11:09:45 +00:00
uint8_t boot_mode_idx;
i.MX28: Improve passing of data from SPL to U-Boot Pass memory size from SPL via structure located in SRAM instead of SCRATCH registers. This allows passing more data about boot from SPL to U-Boot, like the boot mode pads configuration. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Detlev Zundel <dzu@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de>
2012-05-01 11:09:44 +00:00
uint32_t mem_dram_size;
};
mxs: Rename 'mx28_dram_init' to 'mxs_dram_init' The DRAM initialization, after SPL has complete, is exactly the same for all mxs SoCs so we should name it accordinly. The following boards has been changed: * apx4devkit * m28evk * mx28evk * sc_sps_1 Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Acked-by: Marek Vasut <marex@denx.de> Acked-by: Veli-Pekka Peltola <veli-pekka.peltola@bluegiga.com>
2012-08-19 04:58:30 +00:00
int mxs_dram_init(void);
mx28: Let dram_init be common for mx28 Let dram_init function be a common function, so that other mx28 boards can reuse it. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Marek Vasut <marek.vasut@gmail.com>
2011-12-20 05:46:33 +00:00
mxs: Convert sys_proto.h prefixes to 'mxs' The sys_proto.h functions (except the boot modes) are compatible with i.MX233 and i.MX28 so we use 'mxs' prefix for its methods. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2012-08-13 09:53:12 +00:00
#endif /* __SYS_PROTO_H__ */
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