This patch adds a gpmc_init function for OMAP4 and adds calls to gpmc_init for existing OMAP4 boards: panda and sdp4430
Signed-off-by: Steve Sakoman steve@sakoman.com --- arch/arm/cpu/armv7/omap4/Makefile | 1 + arch/arm/cpu/armv7/omap4/mem.c | 45 +++++++++++++++++++++++++ arch/arm/include/asm/arch-omap4/cpu.h | 48 +++++++++++++++++++++++++++ arch/arm/include/asm/arch-omap4/omap4.h | 2 +- arch/arm/include/asm/arch-omap4/sys_proto.h | 1 + board/ti/panda/panda.c | 2 + board/ti/sdp4430/sdp.c | 2 + 7 files changed, 100 insertions(+), 1 deletions(-) create mode 100644 arch/arm/cpu/armv7/omap4/mem.c
diff --git a/arch/arm/cpu/armv7/omap4/Makefile b/arch/arm/cpu/armv7/omap4/Makefile index ecf64f9..d926fbb 100644 --- a/arch/arm/cpu/armv7/omap4/Makefile +++ b/arch/arm/cpu/armv7/omap4/Makefile @@ -28,6 +28,7 @@ LIB = $(obj)lib$(SOC).a SOBJS += lowlevel_init.o
COBJS += board.o +COBJS += mem.o COBJS += sys_info.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) diff --git a/arch/arm/cpu/armv7/omap4/mem.c b/arch/arm/cpu/armv7/omap4/mem.c new file mode 100644 index 0000000..208f3a8 --- /dev/null +++ b/arch/arm/cpu/armv7/omap4/mem.c @@ -0,0 +1,45 @@ +/* + * (C) Copyright 2010 + * Texas Instruments, <www.ti.com> + * + * Steve Sakoman steve@sakoman.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; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <asm/arch/cpu.h> +#include <asm/arch/sys_proto.h> + +struct gpmc *gpmc_cfg; + +/***************************************************** + * gpmc_init(): init gpmc bus + * This code can only be executed from SRAM or SDRAM. + *****************************************************/ +void gpmc_init(void) +{ + gpmc_cfg = (struct gpmc *)GPMC_BASE; + + /* global settings */ + writel(0, &gpmc_cfg->irqenable); /* isr's sources masked */ + writel(0, &gpmc_cfg->timeout_control);/* timeout disable */ + + /* + * Disable the GPMC0 config set by ROM code + * It conflicts with our MPDB (both at 0x08000000) + */ + writel(0, &gpmc_cfg->cs[0].config7); +} diff --git a/arch/arm/include/asm/arch-omap4/cpu.h b/arch/arm/include/asm/arch-omap4/cpu.h index 7d8aa20..1b65408 100644 --- a/arch/arm/include/asm/arch-omap4/cpu.h +++ b/arch/arm/include/asm/arch-omap4/cpu.h @@ -31,6 +31,51 @@
#ifndef __KERNEL_STRICT_NAMES #ifndef __ASSEMBLY__ +struct gpmc_cs { + u32 config1; /* 0x00 */ + u32 config2; /* 0x04 */ + u32 config3; /* 0x08 */ + u32 config4; /* 0x0C */ + u32 config5; /* 0x10 */ + u32 config6; /* 0x14 */ + u32 config7; /* 0x18 */ + u32 nand_cmd; /* 0x1C */ + u32 nand_adr; /* 0x20 */ + u32 nand_dat; /* 0x24 */ + u8 res[8]; /* blow up to 0x30 byte */ +}; + +struct gpmc { + u8 res1[0x10]; + u32 sysconfig; /* 0x10 */ + u8 res2[0x4]; + u32 irqstatus; /* 0x18 */ + u32 irqenable; /* 0x1C */ + u8 res3[0x20]; + u32 timeout_control; /* 0x40 */ + u8 res4[0xC]; + u32 config; /* 0x50 */ + u32 status; /* 0x54 */ + u8 res5[0x8]; /* 0x58 */ + struct gpmc_cs cs[8]; /* 0x60, 0x90, .. */ + u8 res6[0x14]; /* 0x1E0 */ + u32 ecc_config; /* 0x1F4 */ + u32 ecc_control; /* 0x1F8 */ + u32 ecc_size_config; /* 0x1FC */ + u32 ecc1_result; /* 0x200 */ + u32 ecc2_result; /* 0x204 */ + u32 ecc3_result; /* 0x208 */ + u32 ecc4_result; /* 0x20C */ + u32 ecc5_result; /* 0x210 */ + u32 ecc6_result; /* 0x214 */ + u32 ecc7_result; /* 0x218 */ + u32 ecc8_result; /* 0x21C */ + u32 ecc9_result; /* 0x220 */ +}; + +/* Used for board specific gpmc initialization */ +extern struct gpmc *gpmc_cfg; + struct gptimer { u32 tidr; /* 0x00 r */ u8 res[0xc]; @@ -86,6 +131,9 @@ struct watchdog { #define TCLR_AR (0x1 << 1) #define TCLR_PRE (0x1 << 5)
+/* GPMC BASE */ +#define GPMC_BASE (OMAP44XX_GPMC_BASE) + /* I2C base */ #define I2C_BASE1 (OMAP44XX_L4_PER_BASE + 0x70000) #define I2C_BASE2 (OMAP44XX_L4_PER_BASE + 0x72000) diff --git a/arch/arm/include/asm/arch-omap4/omap4.h b/arch/arm/include/asm/arch-omap4/omap4.h index d123d6a..5243ea8 100644 --- a/arch/arm/include/asm/arch-omap4/omap4.h +++ b/arch/arm/include/asm/arch-omap4/omap4.h @@ -62,7 +62,7 @@ #define SYNC_32KTIMER_BASE (OMAP44XX_L4_WKUP_BASE + 0x4000)
/* GPMC */ -#define GPMC_BASE 0x50000000 +#define OMAP44XX_GPMC_BASE 0x50000000
/* * Hardware Register Details diff --git a/arch/arm/include/asm/arch-omap4/sys_proto.h b/arch/arm/include/asm/arch-omap4/sys_proto.h index 6f4d3d5..c6fab00 100644 --- a/arch/arm/include/asm/arch-omap4/sys_proto.h +++ b/arch/arm/include/asm/arch-omap4/sys_proto.h @@ -28,6 +28,7 @@ struct omap_sysinfo { char *board_string; };
+void gpmc_init(void); void watchdog_init(void); u32 get_device_type(void); void invalidate_dcache(u32); diff --git a/board/ti/panda/panda.c b/board/ti/panda/panda.c index 46a5d1d..917bbec 100644 --- a/board/ti/panda/panda.c +++ b/board/ti/panda/panda.c @@ -37,6 +37,8 @@ const struct omap_sysinfo sysinfo = { */ int board_init(void) { + gpmc_init(); + gd->bd->bi_arch_number = MACH_TYPE_OMAP4_PANDA; gd->bd->bi_boot_params = (0x80000000 + 0x100); /* boot param addr */
diff --git a/board/ti/sdp4430/sdp.c b/board/ti/sdp4430/sdp.c index 6ae016c..8ed7873 100644 --- a/board/ti/sdp4430/sdp.c +++ b/board/ti/sdp4430/sdp.c @@ -38,6 +38,8 @@ const struct omap_sysinfo sysinfo = { */ int board_init(void) { + gpmc_init(); + gd->bd->bi_arch_number = MACH_TYPE_OMAP_4430SDP; gd->bd->bi_boot_params = (0x80000000 + 0x100); /* boot param addr */