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am335x_evm: Add support for the NOR module on the memory cape

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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 <s-kipisz2@ti.com>
[trini: Clean up config changes slightly]
Signed-off-by: Tom Rini <trini@ti.com>
This commit is contained in:
Steve Kipisz 2013-07-18 15:13:03 -04:00 committed by Tom Rini
parent 392bba4ad0
commit cd8845d7a4
6 changed files with 108 additions and 0 deletions
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4
arch/arm/cpu/armv7/am33xx/mem.c
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@ -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
*/

9
arch/arm/include/asm/arch-am33xx/mem.h
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@ -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 */

13
board/ti/am335x/board.c
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@ -19,6 +19,7 @@
#include <asm/arch/gpio.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mem.h>
#include <asm/io.h>
#include <asm/emif.h>
#include <asm/gpio.h>
@ -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;
}

53
board/ti/am335x/mux.c
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@ -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();

1
boards.cfg
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@ -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

28
include/configs/am335x_evm.h
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@ -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 */