2 * linux/arch/arm/mach-at91/sam9_smc.c
4 * Copyright (C) 2008 Andrew Victor
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
11 #include <linux/module.h>
14 #include <linux/of_address.h>
16 #include <mach/at91sam9_smc.h>
21 #define AT91_SMC_CS(id, n) (smc_base_addr[id] + ((n) * 0x10))
23 static void __iomem *smc_base_addr[2];
25 static void __init sam9_smc_cs_configure(void __iomem *base, struct sam9_smc_config* config)
29 __raw_writel(AT91_SMC_NWESETUP_(config->nwe_setup)
30 | AT91_SMC_NCS_WRSETUP_(config->ncs_write_setup)
31 | AT91_SMC_NRDSETUP_(config->nrd_setup)
32 | AT91_SMC_NCS_RDSETUP_(config->ncs_read_setup),
33 base + AT91_SMC_SETUP);
36 __raw_writel(AT91_SMC_NWEPULSE_(config->nwe_pulse)
37 | AT91_SMC_NCS_WRPULSE_(config->ncs_write_pulse)
38 | AT91_SMC_NRDPULSE_(config->nrd_pulse)
39 | AT91_SMC_NCS_RDPULSE_(config->ncs_read_pulse),
40 base + AT91_SMC_PULSE);
43 __raw_writel(AT91_SMC_NWECYCLE_(config->write_cycle)
44 | AT91_SMC_NRDCYCLE_(config->read_cycle),
45 base + AT91_SMC_CYCLE);
48 __raw_writel(config->mode
49 | AT91_SMC_TDF_(config->tdf_cycles),
50 base + AT91_SMC_MODE);
53 void __init sam9_smc_configure(int id, int cs, struct sam9_smc_config* config)
55 sam9_smc_cs_configure(AT91_SMC_CS(id, cs), config);
58 void __init at91sam9_ioremap_smc(int id, u32 addr)
61 pr_warn("%s: id > 2\n", __func__);
64 smc_base_addr[id] = ioremap(addr, 512);
65 if (!smc_base_addr[id])
66 pr_warn("Impossible to ioremap smc.%d 0x%x\n", id, addr);