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 <st...@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 <st...@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 */
--
1.7.0.4
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