From: Fabio Estevam fabio.estevam@freescale.com
mx6sabreauto boards come with 32 MiB of parallel NOR flash.
Add support for it:
U-Boot 2015.01-rc1-18107-g1543636-dirty (Nov 14 2014 - 11:11:04)
CPU: Freescale i.MX6Q rev1.2 at 792 MHz Reset cause: POR Board: MX6Q-Sabreauto revA I2C: ready DRAM: 2 GiB Flash: 32 MiB NAND: 0 MiB
Due to pin conflict with I2C3, only define configure I2C3 IOMUX when flash is not used.
Signed-off-by: Fabio Estevam fabio.estevam@freescale.com --- board/freescale/mx6qsabreauto/mx6qsabreauto.c | 80 ++++++++++++++++++++++++++- include/configs/mx6qsabreauto.h | 10 ++++ 2 files changed, 89 insertions(+), 1 deletion(-)
diff --git a/board/freescale/mx6qsabreauto/mx6qsabreauto.c b/board/freescale/mx6qsabreauto/mx6qsabreauto.c index c35dcaf..15df171 100644 --- a/board/freescale/mx6qsabreauto/mx6qsabreauto.c +++ b/board/freescale/mx6qsabreauto/mx6qsabreauto.c @@ -53,6 +53,10 @@ DECLARE_GLOBAL_DATA_PTR;
#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
+#define WEIM_NOR_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ + PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ + PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST) + int dram_init(void) { gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE); @@ -97,6 +101,7 @@ static struct i2c_pads_info i2c_pad_info1 = { } };
+#ifndef CONFIG_SYS_FLASH_CFI /* * I2C3 MLB, Port Expanders (A, B, C), Video ADC, Light Sensor, * Compass Sensor, Accelerometer, Res Touch @@ -113,6 +118,7 @@ static struct i2c_pads_info i2c_pad_info2 = { .gp = IMX_GPIO_NR(3, 18) } }; +#endif
static iomux_v3_cfg_t const i2c3_pads[] = { MX6_PAD_EIM_A24__GPIO5_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL), @@ -160,6 +166,75 @@ static int port_exp_direction_output(unsigned gpio, int value) return 0; }
+static iomux_v3_cfg_t const eimnor_pads[] = { + MX6_PAD_EIM_D16__EIM_DATA16 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_D17__EIM_DATA17 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_D18__EIM_DATA18 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_D19__EIM_DATA19 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_D20__EIM_DATA20 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_D21__EIM_DATA21 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_D22__EIM_DATA22 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_D23__EIM_DATA23 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_D24__EIM_DATA24 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_D25__EIM_DATA25 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_D26__EIM_DATA26 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_D27__EIM_DATA27 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_D28__EIM_DATA28 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_D29__EIM_DATA29 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_D30__EIM_DATA30 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_D31__EIM_DATA31 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_DA0__EIM_AD00 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_DA1__EIM_AD01 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_DA2__EIM_AD02 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_DA3__EIM_AD03 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_DA4__EIM_AD04 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_DA5__EIM_AD05 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_DA6__EIM_AD06 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_DA7__EIM_AD07 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_DA8__EIM_AD08 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_DA9__EIM_AD09 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_DA10__EIM_AD10 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_DA11__EIM_AD11 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL) , + MX6_PAD_EIM_DA12__EIM_AD12 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_DA13__EIM_AD13 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_DA14__EIM_AD14 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_DA15__EIM_AD15 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_A16__EIM_ADDR16 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_A17__EIM_ADDR17 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_A18__EIM_ADDR18 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_A19__EIM_ADDR19 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_A20__EIM_ADDR20 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_A21__EIM_ADDR21 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_A22__EIM_ADDR22 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_A23__EIM_ADDR23 | MUX_PAD_CTRL(WEIM_NOR_PAD_CTRL), + MX6_PAD_EIM_OE__EIM_OE_B | MUX_PAD_CTRL(NO_PAD_CTRL), + MX6_PAD_EIM_RW__EIM_RW | MUX_PAD_CTRL(NO_PAD_CTRL), + MX6_PAD_EIM_CS0__EIM_CS0_B | MUX_PAD_CTRL(NO_PAD_CTRL), +}; + +static void eimnor_cs_setup(void) +{ + struct weim *weim_regs = (struct weim *)WEIM_BASE_ADDR; + + writel(0x00020181, &weim_regs->cs0gcr1); + writel(0x00000001, &weim_regs->cs0gcr2); + writel(0x0a020000, &weim_regs->cs0rcr1); + writel(0x0000c000, &weim_regs->cs0rcr2); + writel(0x0804a240, &weim_regs->cs0wcr1); + writel(0x00000120, &weim_regs->wcr); + + set_chipselect_size(CS0_128); +} + +static void setup_iomux_eimnor(void) +{ + imx_iomux_v3_setup_multiple_pads(eimnor_pads, ARRAY_SIZE(eimnor_pads)); + + gpio_direction_output(IMX_GPIO_NR(5, 4), 0); + + eimnor_cs_setup(); +} + static void setup_iomux_enet(void) { imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads)); @@ -402,6 +477,7 @@ int board_early_init_f(void) #ifdef CONFIG_NAND_MXS setup_gpmi_nand(); #endif + return 0; }
@@ -415,11 +491,13 @@ int board_init(void) /* I2C 3 Steer */ gpio_direction_output(IMX_GPIO_NR(5, 4), 1); imx_iomux_v3_setup_multiple_pads(i2c3_pads, ARRAY_SIZE(i2c3_pads)); +#ifndef CONFIG_SYS_FLASH_CFI setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2); - +#endif gpio_direction_output(IMX_GPIO_NR(1, 15), 1); imx_iomux_v3_setup_multiple_pads(port_exp, ARRAY_SIZE(port_exp));
+ setup_iomux_eimnor(); return 0; }
diff --git a/include/configs/mx6qsabreauto.h b/include/configs/mx6qsabreauto.h index 3f1c88e..559937a 100644 --- a/include/configs/mx6qsabreauto.h +++ b/include/configs/mx6qsabreauto.h @@ -37,6 +37,16 @@
#include "mx6sabre_common.h"
+#undef CONFIG_SYS_NO_FLASH +#define CONFIG_SYS_FLASH_BASE WEIM_ARB_BASE_ADDR +#define CONFIG_SYS_FLASH_SECT_SIZE (128 * 1024) +#define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */ +#define CONFIG_SYS_MAX_FLASH_SECT 256 /* max number of sectors on one chip */ +#define CONFIG_SYS_FLASH_CFI /* Flash memory is CFI compliant */ +#define CONFIG_FLASH_CFI_DRIVER /* Use drivers/cfi_flash.c */ +#define CONFIG_SYS_FLASH_USE_BUFFER_WRITE /* Use buffered writes*/ +#define CONFIG_SYS_FLASH_EMPTY_INFO + #define CONFIG_SYS_FSL_USDHC_NUM 2 #if defined(CONFIG_ENV_IS_IN_MMC) #define CONFIG_SYS_MMC_ENV_DEV 0