diff options
Diffstat (limited to 'arch/arm/cpu/arm1176/tnetv107x/aemif.c')
-rw-r--r-- | arch/arm/cpu/arm1176/tnetv107x/aemif.c | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/arch/arm/cpu/arm1176/tnetv107x/aemif.c b/arch/arm/cpu/arm1176/tnetv107x/aemif.c deleted file mode 100644 index a0f5728..0000000 --- a/arch/arm/cpu/arm1176/tnetv107x/aemif.c +++ /dev/null @@ -1,78 +0,0 @@ -/* - * TNETV107X: Asynchronous EMIF Configuration - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/clock.h> -#include <asm/arch/mux.h> - -#define ASYNC_EMIF_BASE TNETV107X_ASYNC_EMIF_CNTRL_BASE -#define ASYNC_EMIF_CONFIG(cs) (ASYNC_EMIF_BASE+0x10+(cs)*4) -#define ASYNC_EMIF_ONENAND_CONTROL (ASYNC_EMIF_BASE+0x5c) -#define ASYNC_EMIF_NAND_CONTROL (ASYNC_EMIF_BASE+0x60) -#define ASYNC_EMIF_WAITCYCLE_CONFIG (ASYNC_EMIF_BASE+0x4) - -#define CONFIG_SELECT_STROBE(v) ((v) ? 1 << 31 : 0) -#define CONFIG_EXTEND_WAIT(v) ((v) ? 1 << 30 : 0) -#define CONFIG_WR_SETUP(v) (((v) & 0x0f) << 26) -#define CONFIG_WR_STROBE(v) (((v) & 0x3f) << 20) -#define CONFIG_WR_HOLD(v) (((v) & 0x07) << 17) -#define CONFIG_RD_SETUP(v) (((v) & 0x0f) << 13) -#define CONFIG_RD_STROBE(v) (((v) & 0x3f) << 7) -#define CONFIG_RD_HOLD(v) (((v) & 0x07) << 4) -#define CONFIG_TURN_AROUND(v) (((v) & 0x03) << 2) -#define CONFIG_WIDTH(v) (((v) & 0x03) << 0) - -#define NUM_CS 4 - -#define set_config_field(reg, field, val) \ - do { \ - if (val != -1) { \ - reg &= ~CONFIG_##field(0xffffffff); \ - reg |= CONFIG_##field(val); \ - } \ - } while (0) - -void configure_async_emif(int cs, struct async_emif_config *cfg) -{ - unsigned long tmp; - - if (cfg->mode == ASYNC_EMIF_MODE_NAND) { - tmp = __raw_readl(ASYNC_EMIF_NAND_CONTROL); - tmp |= (1 << cs); - __raw_writel(tmp, ASYNC_EMIF_NAND_CONTROL); - - } else if (cfg->mode == ASYNC_EMIF_MODE_ONENAND) { - tmp = __raw_readl(ASYNC_EMIF_ONENAND_CONTROL); - tmp |= (1 << cs); - __raw_writel(tmp, ASYNC_EMIF_ONENAND_CONTROL); - } - - tmp = __raw_readl(ASYNC_EMIF_CONFIG(cs)); - - set_config_field(tmp, SELECT_STROBE, cfg->select_strobe); - set_config_field(tmp, EXTEND_WAIT, cfg->extend_wait); - set_config_field(tmp, WR_SETUP, cfg->wr_setup); - set_config_field(tmp, WR_STROBE, cfg->wr_strobe); - set_config_field(tmp, WR_HOLD, cfg->wr_hold); - set_config_field(tmp, RD_SETUP, cfg->rd_setup); - set_config_field(tmp, RD_STROBE, cfg->rd_strobe); - set_config_field(tmp, RD_HOLD, cfg->rd_hold); - set_config_field(tmp, TURN_AROUND, cfg->turn_around); - set_config_field(tmp, WIDTH, cfg->width); - - __raw_writel(tmp, ASYNC_EMIF_CONFIG(cs)); -} - -void init_async_emif(int num_cs, struct async_emif_config *config) -{ - int cs; - - clk_enable(TNETV107X_LPSC_AEMIF); - - for (cs = 0; cs < num_cs; cs++) - configure_async_emif(cs, config + cs); -} |