Hi,
I have verified the lowlwevel_init.s file but there are not initializing DDR3. They do only following instructions,
"Invalidate_dcache
Init L2 cache
Init AIPS
Init Clock"
And in the "mx6q_saberlite.C" board file they are just doing "dram_init" , this function does only banks and its size.
I want to control the speed of the DDR3 Bus , Can anyone guide me?
Thanks, Balaji S
-----Original Message----- From: Balaji Sivakumar, ERS, HCLTech Sent: Monday, February 27, 2012 4:40 PM To: 'u-boot-owner@lists.denx.de' Subject: How to Change the DDR3 Speed to low in U-boot
Hi,
Am working on Freescale's IMX6 based Custom Board. I have done some changes according to my board specific design.
But I want currently to set the DDR3 speed to low, I have gone through the lowlevel_init.s file but am not sure which register to change.
Can you please guide me at which place I have to change?
Thanks Balaji S
-----Original Message----- From: u-boot-bounces@lists.denx.de [mailto:u-boot-bounces@lists.denx.de] On Behalf Of u-boot-request@lists.denx.de Sent: Monday, February 27, 2012 4:30 PM To: u-boot@lists.denx.de Subject: U-Boot Digest, Vol 45, Issue 34
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Today's Topics:
1. [PATCH 2/3] SPEAr: Configure FSMC driver for NAND interface (Amit Virdi) 2. [PATCH 3/3] mtd/NAND: Remove obsolete SPEAr specific NAND drivers (Amit Virdi) 3. Re: [PATCH 2/3] SPEAr: Configure FSMC driver for NAND interface (Stefan Roese) 4. Re: [PATCH] USB:host: Attribute packed removed from usb structures (Amit Virdi) 5. Re: [PATCH 2/3] SPEAr: Configure FSMC driver for NAND interface (Amit Virdi) 6. Re: [PATCH v4 07/13] davinci: Use correct #ifdef around gdata/bdata (Sughosh Ganu) 7. Re: [PATCH 03/11] st_smi: Return error in case TFF is not set (Stefan Roese) 8. Re: [PATCH v4 07/13] davinci: Use correct #ifdef around gdata/bdata (Christian Riesch) 9. Re: [PATCH v4 07/13] davinci: Use correct #ifdef around gdata/bdata (Sughosh Ganu)
----------------------------------------------------------------------
Message: 1 Date: Mon, 27 Feb 2012 15:08:23 +0530 From: Amit Virdi amit.virdi@st.com Subject: [U-Boot] [PATCH 2/3] SPEAr: Configure FSMC driver for NAND interface To: u-boot@lists.denx.de Cc: armando.visconti@st.com, shiraz.hashim@st.com, Amit Virdi amit.virdi@st.com, scottwood@freescale.com, sr@denx.de Message-ID: 1330335504-32226-3-git-send-email-amit.virdi@st.com Content-Type: text/plain
From: Vipin KUMAR vipin.kumar@st.com
Since FSMC is a standard IP and it supports different memory interfaces, it is supported independent of spear platform and spear is configured to use that driver for interfacing with the NAND device
Signed-off-by: Vipin Kumar vipin.kumar@st.com Signed-off-by: Amit Virdi amit.virdi@st.com --- arch/arm/include/asm/arch-spear/hardware.h | 8 ++++---- board/spear/spear300/spear300.c | 7 ++++--- board/spear/spear310/spear310.c | 7 ++++--- board/spear/spear320/spear320.c | 7 ++++--- board/spear/spear600/spear600.c | 7 ++++--- include/configs/spear-common.h | 2 +- include/configs/spear3xx.h | 4 ++++ include/configs/spear6xx.h | 3 +++ 8 files changed, 28 insertions(+), 17 deletions(-)
diff --git a/arch/arm/include/asm/arch-spear/hardware.h b/arch/arm/include/asm/arch-spear/hardware.h index 818f36c..a6517b2 100644 --- a/arch/arm/include/asm/arch-spear/hardware.h +++ b/arch/arm/include/asm/arch-spear/hardware.h @@ -37,15 +37,15 @@
#if defined(CONFIG_SPEAR600) #define CONFIG_SYS_I2C_BASE (0xD0200000) -#define CONFIG_SPEAR_FSMCBASE (0xD1800000) +#define CONFIG_SYS_FSMC_BASE (0xD1800000)
#elif defined(CONFIG_SPEAR300) #define CONFIG_SYS_I2C_BASE (0xD0180000) -#define CONFIG_SPEAR_FSMCBASE (0x94000000) +#define CONFIG_SYS_FSMC_BASE (0x94000000)
#elif defined(CONFIG_SPEAR310) #define CONFIG_SYS_I2C_BASE (0xD0180000) -#define CONFIG_SPEAR_FSMCBASE (0x44000000) +#define CONFIG_SYS_FSMC_BASE (0x44000000)
#undef CONFIG_SYS_NAND_CLE #undef CONFIG_SYS_NAND_ALE @@ -57,7 +57,7 @@
#elif defined(CONFIG_SPEAR320) #define CONFIG_SYS_I2C_BASE (0xD0180000) -#define CONFIG_SPEAR_FSMCBASE (0x4C000000) +#define CONFIG_SYS_FSMC_BASE (0x4C000000)
#define CONFIG_SPEAR_EMIBASE (0x40000000) #define CONFIG_SPEAR_RASBASE (0xB3000000) diff --git a/board/spear/spear300/spear300.c b/board/spear/spear300/spear300.c index 60ee544..32bcb77 100644 --- a/board/spear/spear300/spear300.c +++ b/board/spear/spear300/spear300.c @@ -24,10 +24,10 @@ #include <common.h> #include <nand.h> #include <asm/io.h> +#include <linux/mtd/fsmc_nand.h> #include <asm/arch/hardware.h> #include <asm/arch/spr_defs.h> #include <asm/arch/spr_misc.h> -#include <asm/arch/spr_nand.h>
int board_init(void) { @@ -46,13 +46,14 @@ int board_nand_init(struct nand_chip *nand) struct misc_regs *const misc_regs_p = (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
+#if defined(CONFIG_NAND_FSMC) if (((readl(&misc_regs_p->auto_cfg_reg) & MISC_SOCCFGMSK) == MISC_SOCCFG30) || ((readl(&misc_regs_p->auto_cfg_reg) & MISC_SOCCFGMSK) == MISC_SOCCFG31)) {
- return spear_nand_init(nand); + return fsmc_nand_init(nand); } - +#endif return -1; } diff --git a/board/spear/spear310/spear310.c b/board/spear/spear310/spear310.c index 03dfe16..8b58218 100644 --- a/board/spear/spear310/spear310.c +++ b/board/spear/spear310/spear310.c @@ -25,10 +25,10 @@ #include <common.h> #include <nand.h> #include <asm/io.h> +#include <linux/mtd/fsmc_nand.h> #include <asm/arch/hardware.h> #include <asm/arch/spr_defs.h> #include <asm/arch/spr_misc.h> -#include <asm/arch/spr_nand.h>
int board_init(void) { @@ -47,13 +47,14 @@ int board_nand_init(struct nand_chip *nand) struct misc_regs *const misc_regs_p = (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
+#if defined(CONFIG_NAND_FSMC) if (((readl(&misc_regs_p->auto_cfg_reg) & MISC_SOCCFGMSK) == MISC_SOCCFG30) || ((readl(&misc_regs_p->auto_cfg_reg) & MISC_SOCCFGMSK) == MISC_SOCCFG31)) {
- return spear_nand_init(nand); + return fsmc_nand_init(nand); } - +#endif return -1; } diff --git a/board/spear/spear320/spear320.c b/board/spear/spear320/spear320.c index 2ba2dbb..172ad35 100644 --- a/board/spear/spear320/spear320.c +++ b/board/spear/spear320/spear320.c @@ -25,10 +25,10 @@ #include <common.h> #include <nand.h> #include <asm/io.h> +#include <linux/mtd/fsmc_nand.h> #include <asm/arch/hardware.h> #include <asm/arch/spr_defs.h> #include <asm/arch/spr_misc.h> -#include <asm/arch/spr_nand.h>
int board_init(void) { @@ -47,13 +47,14 @@ int board_nand_init(struct nand_chip *nand) struct misc_regs *const misc_regs_p = (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
+#if defined(CONFIG_NAND_FSMC) if (((readl(&misc_regs_p->auto_cfg_reg) & MISC_SOCCFGMSK) == MISC_SOCCFG30) || ((readl(&misc_regs_p->auto_cfg_reg) & MISC_SOCCFGMSK) == MISC_SOCCFG31)) {
- return spear_nand_init(nand); + return fsmc_nand_init(nand); } - +#endif return -1; } diff --git a/board/spear/spear600/spear600.c b/board/spear/spear600/spear600.c index eef9a37..7cf63d6 100644 --- a/board/spear/spear600/spear600.c +++ b/board/spear/spear600/spear600.c @@ -24,10 +24,10 @@ #include <common.h> #include <nand.h> #include <asm/io.h> +#include <linux/mtd/fsmc_nand.h> #include <asm/arch/hardware.h> #include <asm/arch/spr_defs.h> #include <asm/arch/spr_misc.h> -#include <asm/arch/spr_nand.h>
int board_init(void) { @@ -46,8 +46,9 @@ int board_nand_init(struct nand_chip *nand) struct misc_regs *const misc_regs_p = (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
+#if defined(CONFIG_NAND_FSMC) if (!(readl(&misc_regs_p->auto_cfg_reg) & MISC_NANDDIS)) - return spear_nand_init(nand); - + return fsmc_nand_init(nand); +#endif return -1; } diff --git a/include/configs/spear-common.h b/include/configs/spear-common.h index 516b78e..c37305f 100644 --- a/include/configs/spear-common.h +++ b/include/configs/spear-common.h @@ -90,7 +90,7 @@ /* NAND FLASH Configuration */ #define CONFIG_MTD_DEVICE #define CONFIG_MTD_PARTITIONS -#define CONFIG_NAND_SPEAR 1 +#define CONFIG_NAND_FSMC #define CONFIG_SYS_MAX_NAND_DEVICE 1 #define CONFIG_MTD_NAND_VERIFY_WRITE
diff --git a/include/configs/spear3xx.h b/include/configs/spear3xx.h index bd5d111..5bdd874 100644 --- a/include/configs/spear3xx.h +++ b/include/configs/spear3xx.h @@ -117,6 +117,10 @@
#endif
+/* NAND flash configuration */ +#define CONFIG_SYS_FSMC_NAND_SP +#define CONFIG_SYS_FSMC_NAND_8BIT + #if defined(CONFIG_SPEAR300) #define CONFIG_SYS_NAND_BASE 0x80000000
diff --git a/include/configs/spear6xx.h b/include/configs/spear6xx.h index 8de7ebd..1e06c72 100644 --- a/include/configs/spear6xx.h +++ b/include/configs/spear6xx.h @@ -38,6 +38,9 @@ #define CONFIG_PL01x_PORTS { (void *)CONFIG_SYS_SERIAL0, \ (void *)CONFIG_SYS_SERIAL1 }
+/* NAND flash configuration */ +#define CONFIG_SYS_FSMC_NAND_SP +#define CONFIG_SYS_FSMC_NAND_8BIT #define CONFIG_SYS_NAND_BASE (0xD2000000)
#endif /* __CONFIG_H */ -- 1.7.2.2
------------------------------
Message: 2 Date: Mon, 27 Feb 2012 15:08:24 +0530 From: Amit Virdi amit.virdi@st.com Subject: [U-Boot] [PATCH 3/3] mtd/NAND: Remove obsolete SPEAr specific NAND drivers To: u-boot@lists.denx.de Cc: armando.visconti@st.com, shiraz.hashim@st.com, Amit Virdi amit.virdi@st.com, scottwood@freescale.com, sr@denx.de Message-ID: 1330335504-32226-4-git-send-email-amit.virdi@st.com Content-Type: text/plain
From: Vipin KUMAR vipin.kumar@st.com
Since, SPEAr platform uses generic FSMC driver now, so spear specific files drivers/mtd/nand/spr_nand.c, arch/arm/include/asm/arch-spear/spr_nand.h are removed
Signed-off-by: Vipin Kumar vipin.kumar@st.com Signed-off-by: Amit Virdi amit.virdi@st.com --- arch/arm/include/asm/arch-spear/spr_nand.h | 57 ------------- drivers/mtd/nand/spr_nand.c | 124 ---------------------------- 2 files changed, 0 insertions(+), 181 deletions(-) delete mode 100644 arch/arm/include/asm/arch-spear/spr_nand.h delete mode 100644 drivers/mtd/nand/spr_nand.c
diff --git a/arch/arm/include/asm/arch-spear/spr_nand.h b/arch/arm/include/asm/arch-spear/spr_nand.h deleted file mode 100644 index 2b63dc7..0000000 --- a/arch/arm/include/asm/arch-spear/spr_nand.h +++ /dev/null @@ -1,57 +0,0 @@ -/* - * (C) Copyright 2009 - * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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 - */ - -#ifndef __SPR_NAND_H__ -#define __SPR_NAND_H__ - -struct fsmc_regs { - u32 reserved_1[0x10]; - u32 genmemctrl_pc; - u32 reserved_2; - u32 genmemctrl_comm; - u32 genmemctrl_attrib; - u32 reserved_3; - u32 genmemctrl_ecc; -}; - -/* genmemctrl_pc register definitions */ -#define FSMC_RESET (1 << 0) -#define FSMC_WAITON (1 << 1) -#define FSMC_ENABLE (1 << 2) -#define FSMC_DEVTYPE_NAND (1 << 3) -#define FSMC_DEVWID_8 (0 << 4) -#define FSMC_DEVWID_16 (1 << 4) -#define FSMC_ECCEN (1 << 6) -#define FSMC_ECCPLEN_512 (0 << 7) -#define FSMC_ECCPLEN_256 (1 << 7) -#define FSMC_TCLR_1 (1 << 9) -#define FSMC_TAR_1 (1 << 13) - -/* genmemctrl_comm register definitions */ -#define FSMC_TSET_0 (0 << 0) -#define FSMC_TWAIT_6 (6 << 8) -#define FSMC_THOLD_4 (4 << 16) -#define FSMC_THIZ_1 (1 << 24) - -extern int spear_nand_init(struct nand_chip *nand); -#endif diff --git a/drivers/mtd/nand/spr_nand.c b/drivers/mtd/nand/spr_nand.c deleted file mode 100644 index 097d0c6..0000000 --- a/drivers/mtd/nand/spr_nand.c +++ /dev/null @@ -1,124 +0,0 @@ -/* - * (C) Copyright 2009 - * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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 <common.h> -#include <nand.h> -#include <linux/mtd/nand_ecc.h> -#include <asm/io.h> -#include <asm/arch/hardware.h> -#include <asm/arch/spr_nand.h> - -static struct fsmc_regs *const fsmc_regs_p = - (struct fsmc_regs *)CONFIG_SPEAR_FSMCBASE; - -static struct nand_ecclayout spear_nand_ecclayout = { - .eccbytes = 24, - .eccpos = {2, 3, 4, 18, 19, 20, 34, 35, 36, 50, 51, 52, - 66, 67, 68, 82, 83, 84, 98, 99, 100, 114, 115, 116}, - .oobfree = { - {.offset = 8, .length = 8}, - {.offset = 24, .length = 8}, - {.offset = 40, .length = 8}, - {.offset = 56, .length = 8}, - {.offset = 72, .length = 8}, - {.offset = 88, .length = 8}, - {.offset = 104, .length = 8}, - {.offset = 120, .length = 8} - } -}; - -static void spear_nand_hwcontrol(struct mtd_info *mtd, int cmd, uint ctrl) -{ - struct nand_chip *this = mtd->priv; - ulong IO_ADDR_W; - - if (ctrl & NAND_CTRL_CHANGE) { - IO_ADDR_W = (ulong)this->IO_ADDR_W; - - IO_ADDR_W &= ~(CONFIG_SYS_NAND_CLE | CONFIG_SYS_NAND_ALE); - if (ctrl & NAND_CLE) - IO_ADDR_W |= CONFIG_SYS_NAND_CLE; - if (ctrl & NAND_ALE) - IO_ADDR_W |= CONFIG_SYS_NAND_ALE; - - if (ctrl & NAND_NCE) { - writel(readl(&fsmc_regs_p->genmemctrl_pc) | - FSMC_ENABLE, &fsmc_regs_p->genmemctrl_pc); - } else { - writel(readl(&fsmc_regs_p->genmemctrl_pc) & - ~FSMC_ENABLE, &fsmc_regs_p->genmemctrl_pc); - } - this->IO_ADDR_W = (void *)IO_ADDR_W; - } - - if (cmd != NAND_CMD_NONE) - writeb(cmd, this->IO_ADDR_W); -} - -static int spear_read_hwecc(struct mtd_info *mtd, - const u_char *data, u_char ecc[3]) -{ - u_int ecc_tmp; - - /* read the h/w ECC */ - ecc_tmp = readl(&fsmc_regs_p->genmemctrl_ecc); - - ecc[0] = (u_char) (ecc_tmp & 0xFF); - ecc[1] = (u_char) ((ecc_tmp & 0xFF00) >> 8); - ecc[2] = (u_char) ((ecc_tmp & 0xFF0000) >> 16); - - return 0; -} - -void spear_enable_hwecc(struct mtd_info *mtd, int mode) -{ - writel(readl(&fsmc_regs_p->genmemctrl_pc) & ~0x80, - &fsmc_regs_p->genmemctrl_pc); - writel(readl(&fsmc_regs_p->genmemctrl_pc) & ~FSMC_ECCEN, - &fsmc_regs_p->genmemctrl_pc); - writel(readl(&fsmc_regs_p->genmemctrl_pc) | FSMC_ECCEN, - &fsmc_regs_p->genmemctrl_pc); -} - -int spear_nand_init(struct nand_chip *nand) -{ - writel(FSMC_DEVWID_8 | FSMC_DEVTYPE_NAND | FSMC_ENABLE | FSMC_WAITON, - &fsmc_regs_p->genmemctrl_pc); - writel(readl(&fsmc_regs_p->genmemctrl_pc) | FSMC_TCLR_1 | FSMC_TAR_1, - &fsmc_regs_p->genmemctrl_pc); - writel(FSMC_THIZ_1 | FSMC_THOLD_4 | FSMC_TWAIT_6 | FSMC_TSET_0, - &fsmc_regs_p->genmemctrl_comm); - writel(FSMC_THIZ_1 | FSMC_THOLD_4 | FSMC_TWAIT_6 | FSMC_TSET_0, - &fsmc_regs_p->genmemctrl_attrib); - - nand->options = 0; - nand->ecc.mode = NAND_ECC_HW; - nand->ecc.layout = &spear_nand_ecclayout; - nand->ecc.size = 512; - nand->ecc.bytes = 3; - nand->ecc.calculate = spear_read_hwecc; - nand->ecc.hwctl = spear_enable_hwecc; - nand->ecc.correct = nand_correct_data; - nand->cmd_ctrl = spear_nand_hwcontrol; - return 0; -} -- 1.7.2.2
------------------------------
Message: 3 Date: Mon, 27 Feb 2012 11:02:18 +0100 From: Stefan Roese sr@denx.de Subject: Re: [U-Boot] [PATCH 2/3] SPEAr: Configure FSMC driver for NAND interface To: u-boot@lists.denx.de Cc: armando.visconti@st.com, shiraz.hashim@st.com, Amit Virdi amit.virdi@st.com, scottwood@freescale.com Message-ID: 201202271102.18797.sr@denx.de Content-Type: Text/Plain; charset="iso-8859-1"
Hi Amit,
please find a few comments below.
On Monday 27 February 2012 10:38:23 Amit Virdi wrote:
From: Vipin KUMAR vipin.kumar@st.com
Since FSMC is a standard IP and it supports different memory interfaces, it is supported independent of spear platform and spear is configured to use that driver for interfacing with the NAND device
Signed-off-by: Vipin Kumar vipin.kumar@st.com Signed-off-by: Amit Virdi amit.virdi@st.com
arch/arm/include/asm/arch-spear/hardware.h | 8 ++++---- board/spear/spear300/spear300.c | 7 ++++--- board/spear/spear310/spear310.c | 7 ++++--- board/spear/spear320/spear320.c | 7 ++++--- board/spear/spear600/spear600.c | 7 ++++--- include/configs/spear-common.h | 2 +- include/configs/spear3xx.h | 4 ++++ include/configs/spear6xx.h | 3 +++ 8 files changed, 28 insertions(+), 17 deletions(-)
diff --git a/arch/arm/include/asm/arch-spear/hardware.h b/arch/arm/include/asm/arch-spear/hardware.h index 818f36c..a6517b2 100644 --- a/arch/arm/include/asm/arch-spear/hardware.h +++ b/arch/arm/include/asm/arch-spear/hardware.h @@ -37,15 +37,15 @@
#if defined(CONFIG_SPEAR600) #define CONFIG_SYS_I2C_BASE (0xD0200000) -#define CONFIG_SPEAR_FSMCBASE (0xD1800000) +#define CONFIG_SYS_FSMC_BASE (0xD1800000)
Please remove the parentheses here as they are not needed. Should be done to all those defines, perhaps in a cosmetic cleanup patch at some time as well:
+#define CONFIG_SYS_FSMC_BASE 0xD1800000
#elif defined(CONFIG_SPEAR300) #define CONFIG_SYS_I2C_BASE (0xD0180000) -#define CONFIG_SPEAR_FSMCBASE (0x94000000) +#define CONFIG_SYS_FSMC_BASE (0x94000000)
#elif defined(CONFIG_SPEAR310) #define CONFIG_SYS_I2C_BASE (0xD0180000) -#define CONFIG_SPEAR_FSMCBASE (0x44000000) +#define CONFIG_SYS_FSMC_BASE (0x44000000)
#undef CONFIG_SYS_NAND_CLE #undef CONFIG_SYS_NAND_ALE @@ -57,7 +57,7 @@
#elif defined(CONFIG_SPEAR320) #define CONFIG_SYS_I2C_BASE (0xD0180000) -#define CONFIG_SPEAR_FSMCBASE (0x4C000000) +#define CONFIG_SYS_FSMC_BASE (0x4C000000)
#define CONFIG_SPEAR_EMIBASE (0x40000000) #define CONFIG_SPEAR_RASBASE (0xB3000000) diff --git a/board/spear/spear300/spear300.c b/board/spear/spear300/spear300.c index 60ee544..32bcb77 100644 --- a/board/spear/spear300/spear300.c +++ b/board/spear/spear300/spear300.c @@ -24,10 +24,10 @@ #include <common.h> #include <nand.h> #include <asm/io.h> +#include <linux/mtd/fsmc_nand.h> #include <asm/arch/hardware.h> #include <asm/arch/spr_defs.h> #include <asm/arch/spr_misc.h> -#include <asm/arch/spr_nand.h>
int board_init(void) { @@ -46,13 +46,14 @@ int board_nand_init(struct nand_chip *nand) struct misc_regs *const misc_regs_p = (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
+#if defined(CONFIG_NAND_FSMC) if (((readl(&misc_regs_p->auto_cfg_reg) & MISC_SOCCFGMSK) == MISC_SOCCFG30) || ((readl(&misc_regs_p->auto_cfg_reg) & MISC_SOCCFGMSK) == MISC_SOCCFG31)) {
return spear_nand_init(nand);
return fsmc_nand_init(nand); }
+#endif return -1; } diff --git a/board/spear/spear310/spear310.c b/board/spear/spear310/spear310.c index 03dfe16..8b58218 100644 --- a/board/spear/spear310/spear310.c +++ b/board/spear/spear310/spear310.c @@ -25,10 +25,10 @@ #include <common.h> #include <nand.h> #include <asm/io.h> +#include <linux/mtd/fsmc_nand.h> #include <asm/arch/hardware.h> #include <asm/arch/spr_defs.h> #include <asm/arch/spr_misc.h> -#include <asm/arch/spr_nand.h>
int board_init(void) { @@ -47,13 +47,14 @@ int board_nand_init(struct nand_chip *nand) struct misc_regs *const misc_regs_p = (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
+#if defined(CONFIG_NAND_FSMC) if (((readl(&misc_regs_p->auto_cfg_reg) & MISC_SOCCFGMSK) == MISC_SOCCFG30) || ((readl(&misc_regs_p->auto_cfg_reg) & MISC_SOCCFGMSK) == MISC_SOCCFG31)) {
return spear_nand_init(nand);
return fsmc_nand_init(nand); }
+#endif return -1; } diff --git a/board/spear/spear320/spear320.c b/board/spear/spear320/spear320.c index 2ba2dbb..172ad35 100644 --- a/board/spear/spear320/spear320.c +++ b/board/spear/spear320/spear320.c @@ -25,10 +25,10 @@ #include <common.h> #include <nand.h> #include <asm/io.h> +#include <linux/mtd/fsmc_nand.h> #include <asm/arch/hardware.h> #include <asm/arch/spr_defs.h> #include <asm/arch/spr_misc.h> -#include <asm/arch/spr_nand.h>
int board_init(void) { @@ -47,13 +47,14 @@ int board_nand_init(struct nand_chip *nand) struct misc_regs *const misc_regs_p = (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
+#if defined(CONFIG_NAND_FSMC) if (((readl(&misc_regs_p->auto_cfg_reg) & MISC_SOCCFGMSK) == MISC_SOCCFG30) || ((readl(&misc_regs_p->auto_cfg_reg) & MISC_SOCCFGMSK) == MISC_SOCCFG31)) {
return spear_nand_init(nand);
return fsmc_nand_init(nand); }
+#endif return -1; } diff --git a/board/spear/spear600/spear600.c b/board/spear/spear600/spear600.c index eef9a37..7cf63d6 100644 --- a/board/spear/spear600/spear600.c +++ b/board/spear/spear600/spear600.c @@ -24,10 +24,10 @@ #include <common.h> #include <nand.h> #include <asm/io.h> +#include <linux/mtd/fsmc_nand.h> #include <asm/arch/hardware.h> #include <asm/arch/spr_defs.h> #include <asm/arch/spr_misc.h> -#include <asm/arch/spr_nand.h>
int board_init(void) { @@ -46,8 +46,9 @@ int board_nand_init(struct nand_chip *nand) struct misc_regs *const misc_regs_p = (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
+#if defined(CONFIG_NAND_FSMC) if (!(readl(&misc_regs_p->auto_cfg_reg) & MISC_NANDDIS))
return spear_nand_init(nand);
return fsmc_nand_init(nand);+#endif return -1; } diff --git a/include/configs/spear-common.h b/include/configs/spear-common.h index 516b78e..c37305f 100644 --- a/include/configs/spear-common.h +++ b/include/configs/spear-common.h @@ -90,7 +90,7 @@ /* NAND FLASH Configuration */ #define CONFIG_MTD_DEVICE #define CONFIG_MTD_PARTITIONS -#define CONFIG_NAND_SPEAR 1 +#define CONFIG_NAND_FSMC #define CONFIG_SYS_MAX_NAND_DEVICE 1 #define CONFIG_MTD_NAND_VERIFY_WRITE
I suggest that you remove this last define. Most likely it was added for debugging purpose only. It slows down the speed and it brakes UBI support.
diff --git a/include/configs/spear3xx.h b/include/configs/spear3xx.h index bd5d111..5bdd874 100644 --- a/include/configs/spear3xx.h +++ b/include/configs/spear3xx.h @@ -117,6 +117,10 @@
#endif
+/* NAND flash configuration */ +#define CONFIG_SYS_FSMC_NAND_SP +#define CONFIG_SYS_FSMC_NAND_8BIT
#if defined(CONFIG_SPEAR300) #define CONFIG_SYS_NAND_BASE 0x80000000
diff --git a/include/configs/spear6xx.h b/include/configs/spear6xx.h index 8de7ebd..1e06c72 100644 --- a/include/configs/spear6xx.h +++ b/include/configs/spear6xx.h @@ -38,6 +38,9 @@ #define CONFIG_PL01x_PORTS { (void
*)CONFIG_SYS_SERIAL0, \
(void
*)CONFIG_SYS_SERIAL1 }
+/* NAND flash configuration */ +#define CONFIG_SYS_FSMC_NAND_SP +#define CONFIG_SYS_FSMC_NAND_8BIT
You also need the following define for this to work with the latest NAND subsystem:
#define CONFIG_MTD_ECC_SOFT
Not sure about SPEAr3xx. Most likely this needs it as well.
Thanks, Stefan
-- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: office@denx.de
------------------------------
Message: 4 Date: Mon, 27 Feb 2012 15:32:14 +0530 From: Amit Virdi amit.virdi@st.com Subject: Re: [U-Boot] [PATCH] USB:host: Attribute packed removed from usb structures To: Mike Frysinger vapier@gentoo.org Cc: Armando VISCONTI armando.visconti@st.com, "u-boot@lists.denx.de" u-boot@lists.denx.de, "sr@denx.de" sr@denx.de, Shiraz HASHIM shiraz.hashim@st.com Message-ID: 4F4B54A6.4000907@st.com Content-Type: text/plain; charset="ISO-8859-1"; format=flowed
Hello Mike,
On 2/25/2012 12:48 AM, Mike Frysinger wrote:
On Friday 24 February 2012 06:58:40 Amit Virdi wrote:
Packed attribute is forcing a bytewise write on device registers, there by, resulting in a misbehavior on gcc-4.4.1.
so use a compiler that isn't broken ?
It doesn't seem like compiler issue (on ARM).
Thanks Amit Virdi
------------------------------
Message: 5 Date: Mon, 27 Feb 2012 15:45:11 +0530 From: Amit Virdi amit.virdi@st.com Subject: Re: [U-Boot] [PATCH 2/3] SPEAr: Configure FSMC driver for NAND interface To: Stefan Roese sr@denx.de Cc: Armando VISCONTI armando.visconti@st.com, "u-boot@lists.denx.de" u-boot@lists.denx.de, "scottwood@freescale.com" scottwood@freescale.com, Shiraz HASHIM shiraz.hashim@st.com Message-ID: 4F4B57AF.2050201@st.com Content-Type: text/plain; charset="ISO-8859-1"; format=flowed
Hello Stefan,
On 2/27/2012 3:32 PM, Stefan Roese wrote:
Hi Amit,
please find a few comments below.
On Monday 27 February 2012 10:38:23 Amit Virdi wrote:
From: Vipin KUMARvipin.kumar@st.com
Since FSMC is a standard IP and it supports different memory interfaces, it is supported independent of spear platform and spear is configured to use that driver for interfacing with the NAND device
Signed-off-by: Vipin Kumarvipin.kumar@st.com Signed-off-by: Amit Virdiamit.virdi@st.com
arch/arm/include/asm/arch-spear/hardware.h | 8 ++++---- board/spear/spear300/spear300.c | 7 ++++--- board/spear/spear310/spear310.c | 7 ++++--- board/spear/spear320/spear320.c | 7 ++++--- board/spear/spear600/spear600.c | 7 ++++--- include/configs/spear-common.h | 2 +- include/configs/spear3xx.h | 4 ++++ include/configs/spear6xx.h | 3 +++ 8 files changed, 28 insertions(+), 17 deletions(-)
diff --git a/arch/arm/include/asm/arch-spear/hardware.h b/arch/arm/include/asm/arch-spear/hardware.h index 818f36c..a6517b2 100644 --- a/arch/arm/include/asm/arch-spear/hardware.h +++ b/arch/arm/include/asm/arch-spear/hardware.h @@ -37,15 +37,15 @@
#if defined(CONFIG_SPEAR600) #define CONFIG_SYS_I2C_BASE (0xD0200000) -#define CONFIG_SPEAR_FSMCBASE (0xD1800000) +#define CONFIG_SYS_FSMC_BASE (0xD1800000)
Please remove the parentheses here as they are not needed. Should be done to all those defines, perhaps in a cosmetic cleanup patch at some time as well:
Yes. I'll be sending a separate cleanup commit.
+#define CONFIG_SYS_FSMC_BASE 0xD1800000
#elif defined(CONFIG_SPEAR300)
<snip>
diff --git a/include/configs/spear-common.h b/include/configs/spear-common.h index 516b78e..c37305f 100644 --- a/include/configs/spear-common.h +++ b/include/configs/spear-common.h @@ -90,7 +90,7 @@ /* NAND FLASH Configuration */ #define CONFIG_MTD_DEVICE #define CONFIG_MTD_PARTITIONS -#define CONFIG_NAND_SPEAR 1 +#define CONFIG_NAND_FSMC #define CONFIG_SYS_MAX_NAND_DEVICE 1 #define CONFIG_MTD_NAND_VERIFY_WRITE
I suggest that you remove this last define. Most likely it was added for debugging purpose only. It slows down the speed and it brakes UBI support.
Ok.
diff --git a/include/configs/spear3xx.h b/include/configs/spear3xx.h index bd5d111..5bdd874 100644 --- a/include/configs/spear3xx.h +++ b/include/configs/spear3xx.h @@ -117,6 +117,10 @@
#endif
+/* NAND flash configuration */ +#define CONFIG_SYS_FSMC_NAND_SP +#define CONFIG_SYS_FSMC_NAND_8BIT
- #if defined(CONFIG_SPEAR300) #define CONFIG_SYS_NAND_BASE 0x80000000
diff --git a/include/configs/spear6xx.h b/include/configs/spear6xx.h index 8de7ebd..1e06c72 100644 --- a/include/configs/spear6xx.h +++ b/include/configs/spear6xx.h @@ -38,6 +38,9 @@ #define CONFIG_PL01x_PORTS { (void
*)CONFIG_SYS_SERIAL0, \
(void*)CONFIG_SYS_SERIAL1 }
+/* NAND flash configuration */ +#define CONFIG_SYS_FSMC_NAND_SP +#define CONFIG_SYS_FSMC_NAND_8BIT
You also need the following define for this to work with the latest NAND subsystem:
#define CONFIG_MTD_ECC_SOFT
Not sure about SPEAr3xx. Most likely this needs it as well.
Ok. I'll verify the image after the making the changes you suggested and then get back.
Thanks Amit Virdi
------------------------------
Message: 6 Date: Mon, 27 Feb 2012 15:46:13 +0530 From: Sughosh Ganu urwithsughosh@gmail.com Subject: Re: [U-Boot] [PATCH v4 07/13] davinci: Use correct #ifdef around gdata/bdata To: Simon Glass sjg@chromium.org Cc: Tom Rini trini@ti.com, U-Boot Mailing List u-boot@lists.denx.de, hs@denx.de Message-ID: 20120227101613.GA2183@Hardy Content-Type: text/plain; charset="iso-8859-1"
hi Simon,
On Sun Feb 26, 2012 at 09:56:37AM -0800, Simon Glass wrote:
Hi Sughosh,
On Thu, Feb 23, 2012 at 9:25 AM, Sughosh Ganu urwithsughosh@gmail.com wrote:
hi Simon,
On Mon Feb 20, 2012 at 05:32:49PM -0800, Simon Glass wrote:
This fixes the following warnings in an SPL build when libcommon is in use:
spl.c:37: warning: 'gdata' defined but not used spl.c:38: warning: 'bdata' defined but not used
Signed-off-by: Simon Glass sjg@chromium.org
Changes in v4:
- Add new patch to fix davinci build warnings
?arch/arm/cpu/arm926ejs/davinci/spl.c | ? ?2 ++ ?1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/arm/cpu/arm926ejs/davinci/spl.c b/arch/arm/cpu/arm926ejs/davinci/spl.c index b1eff26..2861907 100644 --- a/arch/arm/cpu/arm926ejs/davinci/spl.c +++ b/arch/arm/cpu/arm926ejs/davinci/spl.c @@ -32,10 +32,12 @@
?#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+#ifdef CONFIG_SPL_SPI_LOAD ?DECLARE_GLOBAL_DATA_PTR; ?/* Define global data structure pointer to it*/ ?static gd_t gdata __attribute__ ((section(".data"))); ?static bd_t bdata __attribute__ ((section(".data"))); +#endif
?Can you specify which boards you get this warning for. With your ?patch to add libcommon to hawkboard's spl image, this is now also ?needed for hawkboard which uses CONFIG_SPL_NAND_LOAD.
Perhaps it is any davinci board, with SPI? I don't have any of these - I was just fixing what I thought was a minor #ifdef bug in the code.
I checked the configs for all the davinci boards, and cam_enc_4xx, da850* and hawkboard use spl. Out of these the da850* use a spi flash, while cam_enc_4xx and hawkboard both use a nand. So we should not be using the CONFIG_SPL_SPI_LOAD check to exclude the gdata and bdata objects -- these are now needed after adding the libcommon support to the hawkboard.
Also, the cam_enc_4xx board which uses a spl does not have CONFIG_SPL_LIBCOMMON_SUPPORT and CONFIG_SPL_LIBGENERIC_SUPPORT defined and this patchset does not add these defines for the board. Was adding these defines for the board missed out. If so, then this patch would no longer be needed.
-sughosh
------------------------------
Message: 7 Date: Mon, 27 Feb 2012 11:26:18 +0100 From: Stefan Roese sr@denx.de Subject: Re: [U-Boot] [PATCH 03/11] st_smi: Return error in case TFF is not set To: Amit Virdi amit.virdi@st.com Cc: armando.visconti@st.com, u-boot@lists.denx.de, shiraz.hashim@st.com Message-ID: 201202271126.18256.sr@denx.de Content-Type: Text/Plain; charset="iso-8859-15"
On Friday 24 February 2012 13:23:06 Amit Virdi wrote:
Curently the code makes wrong assumption that the Transfer finished flag shall be set within the stipulated time. However, there may occur a scenario in which the TFF flag is not set. Return error in that case.
Signed-off-by: Vipin Kumar vipin.kumar@st.com Signed-off-by: Amit Virdi amit.virdi@st.com
drivers/mtd/st_smi.c | 22 ++++++++++++++-------- 1 files changed, 14 insertions(+), 8 deletions(-)
diff --git a/drivers/mtd/st_smi.c b/drivers/mtd/st_smi.c index 82f1fe1..ec19b0d 100644 --- a/drivers/mtd/st_smi.c +++ b/drivers/mtd/st_smi.c @@ -58,13 +58,15 @@ static struct flash_dev flash_ids[] = {
- Wait until TFF is set in status register
*/ -static void smi_wait_xfer_finish(int timeout) +static int smi_wait_xfer_finish(int timeout) {
while (timeout--) {
do { if (readl(&smicntl->smi_sr) & TFF)
break;
return 0; udelay(1000);
}
} while (timeout--);return -1;
Somewhat unrelated to the patch topic, but I don't really like this kind of timeout loops. Since it always adds at least 1ms delay after initial failing test. Better use something like this:
static int smi_wait_xfer_finish(int timeout) { ulong start = get_timer(0);
while (get_timer(start) < timeout) { if (readl(&smicntl->smi_sr) & TFF) return 0;
/* Try again after 100usec */ udelay(100); }
return -1; }
You could tune this udelay(100) down more or even remove it completely.
But such a change could be done in a addon cleanup patch, changing all timeout loops this way. I suggest you take a look at my version, here these loops are changes. In the designware networking driver as well, iirc.
Thanks, Stefan
-- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: office@denx.de
------------------------------
Message: 8 Date: Mon, 27 Feb 2012 11:39:42 +0100 From: Christian Riesch christian.riesch@omicron.at Subject: Re: [U-Boot] [PATCH v4 07/13] davinci: Use correct #ifdef around gdata/bdata To: Sughosh Ganu urwithsughosh@gmail.com Cc: Tom Rini trini@ti.com, U-Boot Mailing List u-boot@lists.denx.de, hs@denx.de Message-ID: CABkLObrRUcyio2n3gOVf7Q89iXKfiBdemwHXNsJ4PEAjn3gG3A@mail.gmail.com Content-Type: text/plain; charset=UTF-8
Hi,
On Mon, Feb 27, 2012 at 11:16 AM, Sughosh Ganu urwithsughosh@gmail.com wrote:
hi Simon,
On Sun Feb 26, 2012 at 09:56:37AM -0800, Simon Glass wrote:
Hi Sughosh,
On Thu, Feb 23, 2012 at 9:25 AM, Sughosh Ganu urwithsughosh@gmail.com wrote:
hi Simon,
On Mon Feb 20, 2012 at 05:32:49PM -0800, Simon Glass wrote:
This fixes the following warnings in an SPL build when libcommon is in use:
spl.c:37: warning: 'gdata' defined but not used spl.c:38: warning: 'bdata' defined but not used
Signed-off-by: Simon Glass sjg@chromium.org
Changes in v4:
- Add new patch to fix davinci build warnings
?arch/arm/cpu/arm926ejs/davinci/spl.c | ? ?2 ++ ?1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/arm/cpu/arm926ejs/davinci/spl.c b/arch/arm/cpu/arm926ejs/davinci/spl.c index b1eff26..2861907 100644 --- a/arch/arm/cpu/arm926ejs/davinci/spl.c +++ b/arch/arm/cpu/arm926ejs/davinci/spl.c @@ -32,10 +32,12 @@
?#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+#ifdef CONFIG_SPL_SPI_LOAD ?DECLARE_GLOBAL_DATA_PTR; ?/* Define global data structure pointer to it*/ ?static gd_t gdata __attribute__ ((section(".data"))); ?static bd_t bdata __attribute__ ((section(".data"))); +#endif
In arch/arm/cpu/arm926ejs/davinci/spl.c gdata and bdata are used for serial_init() to allow output to the console from the SPL. However, this is only the case when LIBCOMMON is used. LIBCOMMON is required for booting from SPI, but not for booting from NAND. Up to now davinci boards that boot from NAND with SPL did not use LIBCOMMON but used the puts and putc functions defined in spl.c for console output.
?Can you specify which boards you get this warning for. With your ?patch to add libcommon to hawkboard's spl image, this is now also ?needed for hawkboard which uses CONFIG_SPL_NAND_LOAD.
Simon's patch is for the hawkboard, since due to another patch in his patchset LIBCOMMON is enabled in hawkboard's SPL. Now we have a board that boots from NAND with SPL and has LIBCOMMON enabled (Simon, I did not check the rest of your patchset, why do you need LIBCOMMON on the hawkboard at all?)
However, the patch fixes the warning, but now we use putc and puts from LIBCOMMON without initializing them. Thus it breaks the console output of the hawkboard SPL.
So the correct solution would be to keep the ifdefs around the definition of gdata and bdata as they are, but change board_init_f() like this:
void board_init_r(gd_t *id, ulong dummy) { #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT mem_malloc_init(CONFIG_SYS_TEXT_BASE - CONFIG_SYS_MALLOC_LEN, CONFIG_SYS_MALLOC_LEN);
gd = &gdata; gd->bd = &bdata; gd->flags |= GD_FLG_RELOC; gd->baudrate = CONFIG_BAUDRATE; serial_init(); /* serial communications setup */ gd->have_console = 1; #endif #ifdef CONFIG_SPL_NAND_LOAD nand_init(); puts("Nand boot...\n"); nand_boot(); #endif #ifdef CONFIG_SPL_SPI_LOAD puts("SPI boot...\n"); spi_boot(); #endif }
Regards, Christian
------------------------------
Message: 9 Date: Mon, 27 Feb 2012 16:26:28 +0530 From: Sughosh Ganu urwithsughosh@gmail.com Subject: Re: [U-Boot] [PATCH v4 07/13] davinci: Use correct #ifdef around gdata/bdata To: Christian Riesch christian.riesch@omicron.at Cc: Tom Rini trini@ti.com, U-Boot, hs@denx.de, List u-boot@lists.denx.de Message-ID: 20120227105628.GA2991@Hardy Content-Type: text/plain; charset="iso-8859-1"
hi Christian,
On Mon Feb 27, 2012 at 11:39:42AM +0100, Christian Riesch wrote:
Hi,
On Mon, Feb 27, 2012 at 11:16 AM, Sughosh Ganu urwithsughosh@gmail.com wrote:
<snip>
?arch/arm/cpu/arm926ejs/davinci/spl.c | ? ?2 ++ ?1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/arm/cpu/arm926ejs/davinci/spl.c b/arch/arm/cpu/arm926ejs/davinci/spl.c index b1eff26..2861907 100644 --- a/arch/arm/cpu/arm926ejs/davinci/spl.c +++ b/arch/arm/cpu/arm926ejs/davinci/spl.c @@ -32,10 +32,12 @@
?#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+#ifdef CONFIG_SPL_SPI_LOAD ?DECLARE_GLOBAL_DATA_PTR; ?/* Define global data structure pointer to it*/ ?static gd_t gdata __attribute__ ((section(".data"))); ?static bd_t bdata __attribute__ ((section(".data"))); +#endif
<snip>
?Can you specify which boards you get this warning for. With your ?patch to add libcommon to hawkboard's spl image, this is now also ?needed for hawkboard which uses CONFIG_SPL_NAND_LOAD.
Simon's patch is for the hawkboard, since due to another patch in his patchset LIBCOMMON is enabled in hawkboard's SPL. Now we have a board that boots from NAND with SPL and has LIBCOMMON enabled (Simon, I did not check the rest of your patchset, why do you need LIBCOMMON on the hawkboard at all?)
LIBCOMMON is now needed as the generic relocation based functions are part of the libcommon.o, which are being enabled in the same patchset for all arm boards. So if i understand correct, all arm board based spl's now need libcommon and libgeneric.
The only thing i see is that libcommon and libgeneric are not defined for cam_enc_4xx board which uses spl, and this patchset does not add it either. Not sure whether it got missed.
However, the patch fixes the warning, but now we use putc and puts from LIBCOMMON without initializing them. Thus it breaks the console output of the hawkboard SPL.
So the correct solution would be to keep the ifdefs around the definition of gdata and bdata as they are, but change board_init_f() like this:
I have a patch for this, which i will send today. There is only one question i have though.
void board_init_r(gd_t *id, ulong dummy) { #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT mem_malloc_init(CONFIG_SYS_TEXT_BASE - CONFIG_SYS_MALLOC_LEN, CONFIG_SYS_MALLOC_LEN);
Can you please explain why we need the mem_malloc_init. I did not include this, and spl boots up just fine on my board.
-sughosh
------------------------------
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