From cd8845d7a49687e9e7f727c9d821accf22854dd3 Mon Sep 17 00:00:00 2001 From: Steve Kipisz Date: Thu, 18 Jul 2013 15:13:03 -0400 Subject: [PATCH] am335x_evm: Add support for the NOR module on the memory cape This patch adds support for the NOR module that attaches to the memory cape for a Beaglebone board. This does not add booting support; only support so that you can boot from SD/MMC and see the NOR module so that it can be programmed. Signed-off-by: Steve Kipisz [trini: Clean up config changes slightly] Signed-off-by: Tom Rini --- arch/arm/cpu/armv7/am33xx/mem.c | 4 ++ arch/arm/include/asm/arch-am33xx/mem.h | 9 +++++ board/ti/am335x/board.c | 13 +++++++ board/ti/am335x/mux.c | 53 ++++++++++++++++++++++++++ boards.cfg | 1 + include/configs/am335x_evm.h | 28 ++++++++++++++ 6 files changed, 108 insertions(+) diff --git a/arch/arm/cpu/armv7/am33xx/mem.c b/arch/arm/cpu/armv7/am33xx/mem.c index 03e8c66c43..b6eb46678f 100644 --- a/arch/arm/cpu/armv7/am33xx/mem.c +++ b/arch/arm/cpu/armv7/am33xx/mem.c @@ -71,7 +71,11 @@ void gpmc_init(void) writel(0x00000008, &gpmc_cfg->sysconfig); writel(0x00000000, &gpmc_cfg->irqstatus); writel(0x00000000, &gpmc_cfg->irqenable); +#ifdef CONFIG_NOR + writel(0x00000200, &gpmc_cfg->config); +#else writel(0x00000012, &gpmc_cfg->config); +#endif /* * Disable the GPMC0 config set by ROM code */ diff --git a/arch/arm/include/asm/arch-am33xx/mem.h b/arch/arm/include/asm/arch-am33xx/mem.h index aef4e82fc7..983ea28dc0 100644 --- a/arch/arm/include/asm/arch-am33xx/mem.h +++ b/arch/arm/include/asm/arch-am33xx/mem.h @@ -30,6 +30,7 @@ * * Currently valid part Names are (PART): * M_NAND - Micron NAND + * STNOR - STMicrolelctronics M29W128GL */ #define GPMC_SIZE_256M 0x0 #define GPMC_SIZE_128M 0x8 @@ -45,6 +46,14 @@ #define M_NAND_GPMC_CONFIG6 0x16000f80 #define M_NAND_GPMC_CONFIG7 0x00000008 +#define STNOR_GPMC_CONFIG1 0x00001200 +#define STNOR_GPMC_CONFIG2 0x00101000 +#define STNOR_GPMC_CONFIG3 0x00030301 +#define STNOR_GPMC_CONFIG4 0x10041004 +#define STNOR_GPMC_CONFIG5 0x000C1010 +#define STNOR_GPMC_CONFIG6 0x08070280 +#define STNOR_GPMC_CONFIG7 0x00000F48 + /* max number of GPMC Chip Selects */ #define GPMC_MAX_CS 8 /* max number of GPMC regs */ diff --git a/board/ti/am335x/board.c b/board/ti/am335x/board.c index 00802b61b2..b12341d6e6 100644 --- a/board/ti/am335x/board.c +++ b/board/ti/am335x/board.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -339,10 +340,22 @@ void s_init(void) */ int board_init(void) { +#ifdef CONFIG_NOR + const u32 gpmc_nor[GPMC_MAX_REG] = { STNOR_GPMC_CONFIG1, + STNOR_GPMC_CONFIG2, STNOR_GPMC_CONFIG3, STNOR_GPMC_CONFIG4, + STNOR_GPMC_CONFIG5, STNOR_GPMC_CONFIG6, STNOR_GPMC_CONFIG7 }; +#endif + gd->bd->bi_boot_params = PHYS_DRAM_1 + 0x100; gpmc_init(); +#ifdef CONFIG_NOR + /* Reconfigure CS0 for NOR instead of NAND. */ + enable_gpmc_cs_config(gpmc_nor, &gpmc_cfg->cs[0], + CONFIG_SYS_FLASH_BASE, GPMC_SIZE_16M); +#endif + return 0; } diff --git a/board/ti/am335x/mux.c b/board/ti/am335x/mux.c index 2e09d98f9e..187468e24e 100644 --- a/board/ti/am335x/mux.c +++ b/board/ti/am335x/mux.c @@ -190,6 +190,56 @@ static struct module_pin_mux nand_pin_mux[] = { {-1}, }; +#if defined(CONFIG_NOR) +static struct module_pin_mux bone_norcape_pin_mux[] = { + {OFFSET(lcd_data0), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A0 */ + {OFFSET(lcd_data1), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A1 */ + {OFFSET(lcd_data2), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A2 */ + {OFFSET(lcd_data3), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A3 */ + {OFFSET(lcd_data4), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A4 */ + {OFFSET(lcd_data5), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A5 */ + {OFFSET(lcd_data6), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A6 */ + {OFFSET(lcd_data7), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A7 */ + {OFFSET(lcd_vsync), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A8 */ + {OFFSET(lcd_hsync), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A9 */ + {OFFSET(lcd_pclk), MODE(1)| PULLUDEN | RXACTIVE}, /* NOR_A10 */ + {OFFSET(lcd_ac_bias_en), MODE(1)| PULLUDEN | RXACTIVE}, /* NOR_A11 */ + {OFFSET(lcd_data8), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A12 */ + {OFFSET(lcd_data9), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A13 */ + {OFFSET(lcd_data10), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A14 */ + {OFFSET(lcd_data11), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A15 */ + {OFFSET(lcd_data12), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A16 */ + {OFFSET(lcd_data13), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A17 */ + {OFFSET(lcd_data14), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A18 */ + {OFFSET(lcd_data15), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A19 */ + {OFFSET(gpmc_ad0), MODE(0) | PULLUDEN | RXACTIVE}, /* NOR_AD0 */ + {OFFSET(gpmc_ad1), MODE(0) | PULLUDEN | RXACTIVE}, /* NOR_AD1 */ + {OFFSET(gpmc_ad2), MODE(0) | PULLUDEN | RXACTIVE}, /* NOR_AD2 */ + {OFFSET(gpmc_ad3), MODE(0) | PULLUDEN | RXACTIVE}, /* NOR_AD3 */ + {OFFSET(gpmc_ad4), MODE(0) | PULLUDEN | RXACTIVE}, /* NOR_AD4 */ + {OFFSET(gpmc_ad5), MODE(0) | PULLUDEN | RXACTIVE}, /* NOR_AD5 */ + {OFFSET(gpmc_ad6), MODE(0) | PULLUDEN | RXACTIVE}, /* NOR_AD6 */ + {OFFSET(gpmc_ad7), MODE(0) | PULLUDEN | RXACTIVE}, /* NOR_AD7 */ + {OFFSET(gpmc_ad8), MODE(0) | PULLUDEN | RXACTIVE}, /* NOR_AD8 */ + {OFFSET(gpmc_ad9), MODE(0) | PULLUDEN | RXACTIVE}, /* NOR_AD9 */ + {OFFSET(gpmc_ad10), MODE(0) | PULLUDEN | RXACTIVE}, /* NOR_AD10 */ + {OFFSET(gpmc_ad11), MODE(0) | PULLUDEN | RXACTIVE}, /* NOR_AD11 */ + {OFFSET(gpmc_ad12), MODE(0) | PULLUDEN | RXACTIVE}, /* NOR_AD12 */ + {OFFSET(gpmc_ad13), MODE(0) | PULLUDEN | RXACTIVE}, /* NOR_AD13 */ + {OFFSET(gpmc_ad14), MODE(0) | PULLUDEN | RXACTIVE}, /* NOR_AD14 */ + {OFFSET(gpmc_ad15), MODE(0) | PULLUDEN | RXACTIVE}, /* NOR_AD15 */ + + {OFFSET(gpmc_csn0), (MODE(0) | PULLUDEN) | RXACTIVE}, /* NOR_CE */ + {OFFSET(gpmc_advn_ale), (MODE(0) | PULLUDEN) | RXACTIVE}, /* NOR_ADVN_ALE */ + {OFFSET(gpmc_oen_ren), (MODE(0) | PULLUDEN | RXACTIVE)},/* NOR_OE */ + {OFFSET(gpmc_be0n_cle), (MODE(0) | PULLUDEN | RXACTIVE)},/* NOR_BE0N_CLE */ + {OFFSET(gpmc_wen), (MODE(0) | PULLUDEN | RXACTIVE)}, /* NOR_WEN */ + {OFFSET(gpmc_wait0), (MODE(0) | RXACTIVE | PULLUDEN)}, /* NOR WAIT */ + {-1}, +}; +#endif + + void enable_uart0_pin_mux(void) { configure_module_pin_mux(uart0_pin_mux); @@ -268,6 +318,9 @@ void enable_board_pin_mux(struct am335x_baseboard_id *header) configure_module_pin_mux(mii1_pin_mux); configure_module_pin_mux(mmc0_pin_mux); configure_module_pin_mux(mmc1_pin_mux); +#if defined(CONFIG_NOR) + configure_module_pin_mux(bone_norcape_pin_mux); +#endif } else if (board_is_gp_evm(header)) { /* General Purpose EVM */ unsigned short profile = detect_daughter_board_profile(); diff --git a/boards.cfg b/boards.cfg index 94261da1c1..4c90579d57 100644 --- a/boards.cfg +++ b/boards.cfg @@ -242,6 +242,7 @@ vexpress_ca15_tc2 arm armv7 vexpress armltd vexpress_ca5x2 arm armv7 vexpress armltd vexpress_ca9x4 arm armv7 vexpress armltd am335x_evm arm armv7 am335x ti am33xx am335x_evm:SERIAL1,CONS_INDEX=1 +am335x_evm_nor arm armv7 am335x ti am33xx am335x_evm:SERIAL1,CONS_INDEX=1,NOR am335x_evm_spiboot arm armv7 am335x ti am33xx am335x_evm:SERIAL1,CONS_INDEX=1,SPI_BOOT am335x_evm_uart1 arm armv7 am335x ti am33xx am335x_evm:SERIAL2,CONS_INDEX=2 am335x_evm_uart2 arm armv7 am335x ti am33xx am335x_evm:SERIAL3,CONS_INDEX=3 diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h index 6bc4423914..48491e7d51 100644 --- a/include/configs/am335x_evm.h +++ b/include/configs/am335x_evm.h @@ -523,4 +523,32 @@ #endif #endif +/* + * NOR Size = 16 MiB + * Number of Sectors/Blocks = 128 + * Sector Size = 128 KiB + * Word length = 16 bits + * Default layout: + * 0x000000 - 0x07FFFF : U-Boot (512 KiB) + * 0x080000 - 0x09FFFF : First copy of U-Boot Environment (128 KiB) + * 0x0A0000 - 0x0BFFFF : Second copy of U-Boot Environment (128 KiB) + * 0x0C0000 - 0x4BFFFF : Linux Kernel (4 MiB) + * 0x4C0000 - 0xFFFFFF : Userland (11 MiB + 256 KiB) + */ +#if defined(CONFIG_NOR) +#undef CONFIG_SYS_NO_FLASH +#define CONFIG_SYS_FLASH_USE_BUFFER_WRITE +#define CONFIG_SYS_FLASH_PROTECTION +#define CONFIG_SYS_FLASH_CFI +#define CONFIG_FLASH_CFI_DRIVER +#define CONFIG_FLASH_CFI_MTD +#define CONFIG_SYS_MAX_FLASH_SECT 128 +#define CONFIG_SYS_MAX_FLASH_BANKS 1 +#define CONFIG_SYS_FLASH_BASE (0x08000000) +#define CONFIG_SYS_FLASH_CFI_WIDTH FLASH_CFI_16BIT +#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE +#define CONFIG_MTD_DEVICE +#define CONFIG_CMD_FLASH +#endif /* NOR support */ + #endif /* ! __CONFIG_AM335X_EVM_H */ -- 2.39.5