mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-09-04 20:03:20 +09:00
![Masahiro Yamada](/assets/img/avatar_default.png)
The Linux coding style guide (Documentation/process/coding-style.rst) clearly says: It's a **mistake** to use typedef for structures and pointers. Besides, using typedef for structures is annoying when you try to make headers self-contained. Let's say you have the following function declaration in a header: void foo(bd_t *bd); This is not self-contained since bd_t is not defined. To tell the compiler what 'bd_t' is, you need to include <asm/u-boot.h> #include <asm/u-boot.h> void foo(bd_t *bd); Then, the include direcective pulls in more bloat needlessly. If you use 'struct bd_info' instead, it is enough to put a forward declaration as follows: struct bd_info; void foo(struct bd_info *bd); Right, typedef'ing bd_t is a mistake. I used coccinelle to generate this commit. The semantic patch that makes this change is as follows: <smpl> @@ typedef bd_t; @@ -bd_t +struct bd_info </smpl> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
515 lines
14 KiB
C
515 lines
14 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2004-2011
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* Texas Instruments, <www.ti.com>
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*
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* Author :
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* Sunil Kumar <sunilsaini05@gmail.com>
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* Shashi Ranjan <shashiranjanmca05@gmail.com>
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*
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* Derived from Beagle Board and 3430 SDP code by
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* Richard Woodruff <r-woodruff2@ti.com>
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* Syed Mohammed Khasim <khasim@ti.com>
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*
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*/
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#include <common.h>
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#include <bootstage.h>
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#include <dm.h>
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#include <env.h>
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#include <init.h>
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#include <net.h>
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#include <ns16550.h>
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#include <serial.h>
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#ifdef CONFIG_LED_STATUS
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#include <status_led.h>
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#endif
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#include <twl4030.h>
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#include <linux/mtd/rawnand.h>
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#include <asm/io.h>
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#include <asm/arch/mmc_host_def.h>
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#include <asm/arch/mux.h>
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#include <asm/arch/mem.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/gpio.h>
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#include <asm/mach-types.h>
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#include <asm/omap_musb.h>
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#include <linux/errno.h>
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#include <linux/usb/ch9.h>
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#include <linux/usb/gadget.h>
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#include <linux/usb/musb.h>
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#include "beagle.h"
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#include <command.h>
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#define TWL4030_I2C_BUS 0
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#define EXPANSION_EEPROM_I2C_BUS 1
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#define EXPANSION_EEPROM_I2C_ADDRESS 0x50
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#define TINCANTOOLS_ZIPPY 0x01000100
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#define TINCANTOOLS_ZIPPY2 0x02000100
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#define TINCANTOOLS_TRAINER 0x04000100
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#define TINCANTOOLS_SHOWDOG 0x03000100
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#define KBADC_BEAGLEFPGA 0x01000600
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#define LW_BEAGLETOUCH 0x01000700
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#define BRAINMUX_LCDOG 0x01000800
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#define BRAINMUX_LCDOGTOUCH 0x02000800
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#define BBTOYS_WIFI 0x01000B00
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#define BBTOYS_VGA 0x02000B00
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#define BBTOYS_LCD 0x03000B00
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#define BCT_BRETTL3 0x01000F00
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#define BCT_BRETTL4 0x02000F00
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#define LSR_COM6L_ADPT 0x01001300
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#define BEAGLE_NO_EEPROM 0xffffffff
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DECLARE_GLOBAL_DATA_PTR;
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static struct {
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unsigned int device_vendor;
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unsigned char revision;
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unsigned char content;
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char fab_revision[8];
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char env_var[16];
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char env_setting[64];
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} expansion_config;
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/*
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* Routine: board_init
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* Description: Early hardware init.
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*/
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int board_init(void)
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{
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gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
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/* board id for Linux */
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gd->bd->bi_arch_number = MACH_TYPE_OMAP3_BEAGLE;
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/* boot param addr */
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gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
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#if defined(CONFIG_LED_STATUS) && defined(CONFIG_LED_STATUS_BOOT_ENABLE)
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status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_ON);
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#endif
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return 0;
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}
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#if defined(CONFIG_SPL_OS_BOOT)
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int spl_start_uboot(void)
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{
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/* break into full u-boot on 'c' */
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if (serial_tstc() && serial_getc() == 'c')
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return 1;
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return 0;
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}
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#endif /* CONFIG_SPL_OS_BOOT */
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/*
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* Routine: get_board_revision
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* Description: Detect if we are running on a Beagle revision Ax/Bx,
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* C1/2/3, C4, xM Ax/Bx or xM Cx. This can be done by reading
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* the level of GPIO173, GPIO172 and GPIO171. This should
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* result in
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* GPIO173, GPIO172, GPIO171: 1 1 1 => Ax/Bx
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* GPIO173, GPIO172, GPIO171: 1 1 0 => C1/2/3
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* GPIO173, GPIO172, GPIO171: 1 0 1 => C4
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* GPIO173, GPIO172, GPIO171: 0 1 0 => xM Cx
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* GPIO173, GPIO172, GPIO171: 0 0 0 => xM Ax/Bx
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*/
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static int get_board_revision(void)
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{
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static int revision = -1;
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if (revision == -1) {
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if (!gpio_request(171, "rev0") &&
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!gpio_request(172, "rev1") &&
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!gpio_request(173, "rev2")) {
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gpio_direction_input(171);
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gpio_direction_input(172);
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gpio_direction_input(173);
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revision = gpio_get_value(173) << 2 |
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gpio_get_value(172) << 1 |
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gpio_get_value(171);
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} else {
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printf("Error: unable to acquire board revision GPIOs\n");
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}
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}
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return revision;
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}
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#ifdef CONFIG_SPL_BUILD
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/*
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* Routine: get_board_mem_timings
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* Description: If we use SPL then there is no x-loader nor config header
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* so we have to setup the DDR timings ourself on both banks.
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*/
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void get_board_mem_timings(struct board_sdrc_timings *timings)
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{
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int pop_mfr, pop_id;
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/*
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* We need to identify what PoP memory is on the board so that
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* we know what timings to use. If we can't identify it then
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* we know it's an xM. To map the ID values please see nand_ids.c
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*/
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identify_nand_chip(&pop_mfr, &pop_id);
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timings->mr = MICRON_V_MR_165;
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switch (get_board_revision()) {
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case REVISION_C4:
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if (pop_mfr == NAND_MFR_STMICRO && pop_id == 0xba) {
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/* 512MB DDR */
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timings->mcfg = NUMONYX_V_MCFG_165(512 << 20);
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timings->ctrla = NUMONYX_V_ACTIMA_165;
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timings->ctrlb = NUMONYX_V_ACTIMB_165;
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timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
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break;
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} else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xba) {
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/* Beagleboard Rev C4, 512MB Nand/256MB DDR*/
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timings->mcfg = MICRON_V_MCFG_165(128 << 20);
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timings->ctrla = MICRON_V_ACTIMA_165;
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timings->ctrlb = MICRON_V_ACTIMB_165;
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timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
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break;
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} else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xbc) {
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/* Beagleboard Rev C5, 256MB DDR */
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timings->mcfg = MICRON_V_MCFG_200(256 << 20);
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timings->ctrla = MICRON_V_ACTIMA_200;
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timings->ctrlb = MICRON_V_ACTIMB_200;
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timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
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break;
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}
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case REVISION_XM_AB:
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case REVISION_XM_C:
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if (pop_mfr == 0) {
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/* 256MB DDR */
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timings->mcfg = MICRON_V_MCFG_200(256 << 20);
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timings->ctrla = MICRON_V_ACTIMA_200;
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timings->ctrlb = MICRON_V_ACTIMB_200;
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timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
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} else {
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/* 512MB DDR */
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timings->mcfg = NUMONYX_V_MCFG_165(512 << 20);
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timings->ctrla = NUMONYX_V_ACTIMA_165;
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timings->ctrlb = NUMONYX_V_ACTIMB_165;
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timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
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}
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break;
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default:
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/* Assume 128MB and Micron/165MHz timings to be safe */
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timings->mcfg = MICRON_V_MCFG_165(128 << 20);
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timings->ctrla = MICRON_V_ACTIMA_165;
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timings->ctrlb = MICRON_V_ACTIMB_165;
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timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
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}
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}
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#endif
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/*
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* Routine: get_expansion_id
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* Description: This function checks for expansion board by checking I2C
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* bus 1 for the availability of an AT24C01B serial EEPROM.
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* returns the device_vendor field from the EEPROM
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*/
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static unsigned int get_expansion_id(void)
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{
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i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS);
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/* return BEAGLE_NO_EEPROM if eeprom doesn't respond */
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if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) {
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i2c_set_bus_num(TWL4030_I2C_BUS);
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return BEAGLE_NO_EEPROM;
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}
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/* read configuration data */
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i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config,
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sizeof(expansion_config));
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/* retry reading configuration data with 16bit addressing */
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if ((expansion_config.device_vendor == 0xFFFFFF00) ||
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(expansion_config.device_vendor == 0xFFFFFFFF)) {
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printf("EEPROM is blank or 8bit addressing failed: retrying with 16bit:\n");
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i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 2, (u8 *)&expansion_config,
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sizeof(expansion_config));
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}
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i2c_set_bus_num(TWL4030_I2C_BUS);
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return expansion_config.device_vendor;
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}
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#ifdef CONFIG_VIDEO_OMAP3
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/*
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* Configure DSS to display background color on DVID
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* Configure VENC to display color bar on S-Video
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*/
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static void beagle_display_init(void)
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{
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omap3_dss_venc_config(&venc_config_std_tv, VENC_HEIGHT, VENC_WIDTH);
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switch (get_board_revision()) {
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case REVISION_AXBX:
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case REVISION_CX:
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case REVISION_C4:
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omap3_dss_panel_config(&dvid_cfg);
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break;
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case REVISION_XM_AB:
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case REVISION_XM_C:
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default:
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omap3_dss_panel_config(&dvid_cfg_xm);
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break;
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}
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}
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/*
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* Enable DVI power
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*/
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static void beagle_dvi_pup(void)
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{
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uchar val;
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switch (get_board_revision()) {
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case REVISION_AXBX:
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case REVISION_CX:
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case REVISION_C4:
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gpio_request(170, "dvi");
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gpio_direction_output(170, 0);
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gpio_set_value(170, 1);
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break;
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case REVISION_XM_AB:
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case REVISION_XM_C:
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default:
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#define GPIODATADIR1 (TWL4030_BASEADD_GPIO+3)
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#define GPIODATAOUT1 (TWL4030_BASEADD_GPIO+6)
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i2c_read(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1);
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val |= 4;
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i2c_write(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1);
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i2c_read(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1);
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val |= 4;
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i2c_write(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1);
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break;
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}
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}
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#endif
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/*
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* Routine: misc_init_r
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* Description: Configure board specific parts
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*/
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int misc_init_r(void)
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{
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struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
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struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE;
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struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE;
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bool generate_fake_mac = false;
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u32 value;
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/* Enable i2c2 pullup resisters */
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value = readl(&prog_io_base->io1);
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value &= ~(PRG_I2C2_PULLUPRESX);
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writel(value, &prog_io_base->io1);
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switch (get_board_revision()) {
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case REVISION_AXBX:
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printf("Beagle Rev Ax/Bx\n");
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env_set("beaglerev", "AxBx");
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break;
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case REVISION_CX:
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printf("Beagle Rev C1/C2/C3\n");
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env_set("beaglerev", "Cx");
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MUX_BEAGLE_C();
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break;
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case REVISION_C4:
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printf("Beagle Rev C4\n");
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env_set("beaglerev", "C4");
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MUX_BEAGLE_C();
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/* Set VAUX2 to 1.8V for EHCI PHY */
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twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
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TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
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TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
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TWL4030_PM_RECEIVER_DEV_GRP_P1);
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break;
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case REVISION_XM_AB:
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printf("Beagle xM Rev A/B\n");
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env_set("beaglerev", "xMAB");
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MUX_BEAGLE_XM();
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/* Set VAUX2 to 1.8V for EHCI PHY */
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twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
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TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
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TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
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TWL4030_PM_RECEIVER_DEV_GRP_P1);
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generate_fake_mac = true;
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break;
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case REVISION_XM_C:
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printf("Beagle xM Rev C\n");
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env_set("beaglerev", "xMC");
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MUX_BEAGLE_XM();
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/* Set VAUX2 to 1.8V for EHCI PHY */
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twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
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TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
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TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
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TWL4030_PM_RECEIVER_DEV_GRP_P1);
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generate_fake_mac = true;
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break;
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default:
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printf("Beagle unknown 0x%02x\n", get_board_revision());
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MUX_BEAGLE_XM();
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/* Set VAUX2 to 1.8V for EHCI PHY */
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twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
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TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
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TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
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TWL4030_PM_RECEIVER_DEV_GRP_P1);
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generate_fake_mac = true;
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}
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switch (get_expansion_id()) {
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case TINCANTOOLS_ZIPPY:
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printf("Recognized Tincantools Zippy board (rev %d %s)\n",
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expansion_config.revision,
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expansion_config.fab_revision);
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MUX_TINCANTOOLS_ZIPPY();
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env_set("buddy", "zippy");
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break;
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case TINCANTOOLS_ZIPPY2:
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printf("Recognized Tincantools Zippy2 board (rev %d %s)\n",
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expansion_config.revision,
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expansion_config.fab_revision);
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MUX_TINCANTOOLS_ZIPPY();
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env_set("buddy", "zippy2");
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break;
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case TINCANTOOLS_TRAINER:
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printf("Recognized Tincantools Trainer board (rev %d %s)\n",
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expansion_config.revision,
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expansion_config.fab_revision);
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MUX_TINCANTOOLS_ZIPPY();
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MUX_TINCANTOOLS_TRAINER();
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env_set("buddy", "trainer");
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break;
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case TINCANTOOLS_SHOWDOG:
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printf("Recognized Tincantools Showdow board (rev %d %s)\n",
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expansion_config.revision,
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expansion_config.fab_revision);
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/* Place holder for DSS2 definition for showdog lcd */
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env_set("defaultdisplay", "showdoglcd");
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env_set("buddy", "showdog");
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break;
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case KBADC_BEAGLEFPGA:
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printf("Recognized KBADC Beagle FPGA board\n");
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MUX_KBADC_BEAGLEFPGA();
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env_set("buddy", "beaglefpga");
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break;
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case LW_BEAGLETOUCH:
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printf("Recognized Liquidware BeagleTouch board\n");
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env_set("buddy", "beagletouch");
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break;
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case BRAINMUX_LCDOG:
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printf("Recognized Brainmux LCDog board\n");
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env_set("buddy", "lcdog");
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break;
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case BRAINMUX_LCDOGTOUCH:
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printf("Recognized Brainmux LCDog Touch board\n");
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env_set("buddy", "lcdogtouch");
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break;
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case BBTOYS_WIFI:
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printf("Recognized BeagleBoardToys WiFi board\n");
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MUX_BBTOYS_WIFI()
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env_set("buddy", "bbtoys-wifi");
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break;
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case BBTOYS_VGA:
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printf("Recognized BeagleBoardToys VGA board\n");
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break;
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case BBTOYS_LCD:
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printf("Recognized BeagleBoardToys LCD board\n");
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break;
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case BCT_BRETTL3:
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printf("Recognized bct electronic GmbH brettl3 board\n");
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break;
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case BCT_BRETTL4:
|
|
printf("Recognized bct electronic GmbH brettl4 board\n");
|
|
break;
|
|
case LSR_COM6L_ADPT:
|
|
printf("Recognized LSR COM6L Adapter Board\n");
|
|
MUX_BBTOYS_WIFI()
|
|
env_set("buddy", "lsr-com6l-adpt");
|
|
break;
|
|
case BEAGLE_NO_EEPROM:
|
|
printf("No EEPROM on expansion board\n");
|
|
env_set("buddy", "none");
|
|
break;
|
|
default:
|
|
printf("Unrecognized expansion board: %x\n",
|
|
expansion_config.device_vendor);
|
|
env_set("buddy", "unknown");
|
|
}
|
|
|
|
if (expansion_config.content == 1)
|
|
env_set(expansion_config.env_var, expansion_config.env_setting);
|
|
|
|
twl4030_power_init();
|
|
switch (get_board_revision()) {
|
|
case REVISION_XM_AB:
|
|
twl4030_led_init(TWL4030_LED_LEDEN_LEDBON);
|
|
break;
|
|
default:
|
|
twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
|
|
break;
|
|
}
|
|
|
|
/* Set GPIO states before they are made outputs */
|
|
writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1,
|
|
&gpio6_base->setdataout);
|
|
writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
|
|
GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout);
|
|
|
|
/* Configure GPIOs to output */
|
|
writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe);
|
|
writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
|
|
GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe);
|
|
|
|
omap_die_id_display();
|
|
|
|
#ifdef CONFIG_VIDEO_OMAP3
|
|
beagle_dvi_pup();
|
|
beagle_display_init();
|
|
omap3_dss_enable();
|
|
#endif
|
|
|
|
if (generate_fake_mac)
|
|
omap_die_id_usbethaddr();
|
|
|
|
#if defined(CONFIG_MTDIDS_DEFAULT) && defined(CONFIG_MTDPARTS_DEFAULT)
|
|
if (strlen(CONFIG_MTDIDS_DEFAULT))
|
|
env_set("mtdids", CONFIG_MTDIDS_DEFAULT);
|
|
|
|
if (strlen(CONFIG_MTDPARTS_DEFAULT))
|
|
env_set("mtdparts", CONFIG_MTDPARTS_DEFAULT);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Routine: set_muxconf_regs
|
|
* Description: Setting up the configuration Mux registers specific to the
|
|
* hardware. Many pins need to be moved from protect to primary
|
|
* mode.
|
|
*/
|
|
void set_muxconf_regs(void)
|
|
{
|
|
MUX_BEAGLE();
|
|
}
|
|
|
|
#if defined(CONFIG_MMC)
|
|
int board_mmc_init(struct bd_info *bis)
|
|
{
|
|
return omap_mmc_init(0, 0, 0, -1, -1);
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_MMC)
|
|
void board_mmc_power_init(void)
|
|
{
|
|
twl4030_power_mmc_init(0);
|
|
}
|
|
#endif
|