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am33xx: Rework pinmux functions

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- Move definition of the EEPROM contents to <asm/arch/sys_proto.h>
  - Make some defines a little less generic now.
- Pinmux must be done by done by SPL now.
- Create 3 pinmux functions, uart0, i2c0 and board.
- Add pinmux specific to Starter Kit EVM for MMC now.

Signed-off-by: Tom Rini <trini@ti.com>
This commit is contained in:
Tom Rini
2012-07-31 10:50:01 -07:00
committed by Albert ARIBAUD
parent 726c05d2cf
commit db7dd8109c
5 changed files with 68 additions and 78 deletions
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26
arch/arm/include/asm/arch-am33xx/common_def.h
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@@ -1,26 +0,0 @@
/*
* common_def.h
*
* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef __COMMON_DEF_H__
#define __COMMON_DEF_H__
extern void enable_uart0_pin_mux(void);
extern void enable_mmc0_pin_mux(void);
extern void enable_gpio0_7_pin_mux(void);
extern void enable_i2c0_pin_mux(void);
extern void enable_mii1_pin_mux(void);
extern void enable_rgmii1_pin_mux(void);
#endif/*__COMMON_DEF_H__ */

28
arch/arm/include/asm/arch-am33xx/sys_proto.h
View File

@@ -19,6 +19,24 @@
#ifndef _SYS_PROTO_H_
#define _SYS_PROTO_H_
/*
* AM335x parts define a system EEPROM that defines certain sub-fields.
* We use these fields to in turn see what board we are on, and what
* that might require us to set or not set.
*/
#define HDR_NO_OF_MAC_ADDR 3
#define HDR_ETH_ALEN 6
#define HDR_NAME_LEN 8
struct am335x_baseboard_id {
unsigned int magic;
char name[HDR_NAME_LEN];
char version[4];
char serial[12];
char config[32];
char mac_addr[HDR_NO_OF_MAC_ADDR][HDR_ETH_ALEN];
};
#define BOARD_REV_ID 0x0
u32 get_cpu_rev(void);
@@ -31,4 +49,14 @@ int print_cpuinfo(void);
u32 get_device_type(void);
void setup_clocks_for_console(void);
void ddr_pll_config(unsigned int ddrpll_M);
/*
* We have three pin mux functions that must exist. We must be able to enable
* uart0, for initial output and i2c0 to read the main EEPROM. We then have a
* main pinmux function that can be overridden to enable all other pinmux that
* is required on the board.
*/
void enable_uart0_pin_mux(void);
void enable_i2c0_pin_mux(void);
void enable_board_pin_mux(struct am335x_baseboard_id *header);
#endif