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-rw-r--r--arch/arm/mach-at91/sam9_smc.c62
1 files changed, 41 insertions, 21 deletions
diff --git a/arch/arm/mach-at91/sam9_smc.c b/arch/arm/mach-at91/sam9_smc.c
index 5eab6aa621d..8294783b679 100644
--- a/arch/arm/mach-at91/sam9_smc.c
+++ b/arch/arm/mach-at91/sam9_smc.c
@@ -10,38 +10,58 @@
#include <linux/module.h>
#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
#include <mach/at91sam9_smc.h>
#include "sam9_smc.h"
-void __init sam9_smc_configure(int cs, struct sam9_smc_config* config)
+
+#define AT91_SMC_CS(id, n) (smc_base_addr[id] + ((n) * 0x10))
+
+static void __iomem *smc_base_addr[2];
+
+static void __init sam9_smc_cs_configure(void __iomem *base, struct sam9_smc_config* config)
{
+
/* Setup register */
- at91_sys_write(AT91_SMC_SETUP(cs),
- AT91_SMC_NWESETUP_(config->nwe_setup)
- | AT91_SMC_NCS_WRSETUP_(config->ncs_write_setup)
- | AT91_SMC_NRDSETUP_(config->nrd_setup)
- | AT91_SMC_NCS_RDSETUP_(config->ncs_read_setup)
- );
+ __raw_writel(AT91_SMC_NWESETUP_(config->nwe_setup)
+ | AT91_SMC_NCS_WRSETUP_(config->ncs_write_setup)
+ | AT91_SMC_NRDSETUP_(config->nrd_setup)
+ | AT91_SMC_NCS_RDSETUP_(config->ncs_read_setup),
+ base + AT91_SMC_SETUP);
/* Pulse register */
- at91_sys_write(AT91_SMC_PULSE(cs),
- AT91_SMC_NWEPULSE_(config->nwe_pulse)
- | AT91_SMC_NCS_WRPULSE_(config->ncs_write_pulse)
- | AT91_SMC_NRDPULSE_(config->nrd_pulse)
- | AT91_SMC_NCS_RDPULSE_(config->ncs_read_pulse)
- );
+ __raw_writel(AT91_SMC_NWEPULSE_(config->nwe_pulse)
+ | AT91_SMC_NCS_WRPULSE_(config->ncs_write_pulse)
+ | AT91_SMC_NRDPULSE_(config->nrd_pulse)
+ | AT91_SMC_NCS_RDPULSE_(config->ncs_read_pulse),
+ base + AT91_SMC_PULSE);
/* Cycle register */
- at91_sys_write(AT91_SMC_CYCLE(cs),
- AT91_SMC_NWECYCLE_(config->write_cycle)
- | AT91_SMC_NRDCYCLE_(config->read_cycle)
- );
+ __raw_writel(AT91_SMC_NWECYCLE_(config->write_cycle)
+ | AT91_SMC_NRDCYCLE_(config->read_cycle),
+ base + AT91_SMC_CYCLE);
/* Mode register */
- at91_sys_write(AT91_SMC_MODE(cs),
- config->mode
- | AT91_SMC_TDF_(config->tdf_cycles)
- );
+ __raw_writel(config->mode
+ | AT91_SMC_TDF_(config->tdf_cycles),
+ base + AT91_SMC_MODE);
+}
+
+void __init sam9_smc_configure(int id, int cs, struct sam9_smc_config* config)
+{
+ sam9_smc_cs_configure(AT91_SMC_CS(id, cs), config);
+}
+
+void __init at91sam9_ioremap_smc(int id, u32 addr)
+{
+ if (id > 1) {
+ pr_warn("%s: id > 2\n", __func__);
+ return;
+ }
+ smc_base_addr[id] = ioremap(addr, 512);
+ if (!smc_base_addr[id])
+ pr_warn("Impossible to ioremap smc.%d 0x%x\n", id, addr);
}