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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-09 14:21:03 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-09 14:21:03 -0800 |
commit | acc952c1f373bf3f66cc7a10680eee1762bed40b (patch) | |
tree | de1135ffe304f4d8e53d282e5bb1bde5db04e0ae /arch/arm/mach-at91/sam9_smc.c | |
parent | 57e964e1ae9bd4f699ae1074430bcf81a9a11377 (diff) | |
parent | 40ba95fdf158713377d47736b1b3a9d75f4f2515 (diff) | |
download | linux-acc952c1f373bf3f66cc7a10680eee1762bed40b.tar.bz2 |
Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Cleanups on various subarchitectures
Cleanup patches for various ARM platforms and some of their associated
drivers, the bulk of these is for mach-91.
Arnd ended up pulling in the restart branch from Russell in order to
fix up some simple but annoying merge conflicts.
* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (44 commits)
arm/at91: fix build of stamp9g20
ARM: u300: delete memory.h
MAINTAINERS: add maintainer entry for Picochip picoxcell
ARM: picoxcell: move io mappings to common.c
ARM: picoxcell: don't reserve irq_descs
ARM: picoxcell: remove mach/memory.h
ARM: at91: delete the pcontrol_g20_defconfig
arm/tegra: Remove code that's ifndef CONFIG_ARM_GIC
arm/tegra: remove unused defines
arm/tegra: fix variable formatting in makefile
ARM: davinci: vpif: move code to driver core header from platform
ARM: at91/gpio: fix display of number of irq setuped
ARM: at91/gpio: drop PIN_BASE
ARM: at91/udc: use gpio_is_valid to check the gpio
ARM: at91/ohci: use gpio_is_valid to check the gpio
ARM: at91/nand: use gpio_is_valid to check the gpio
ARM: at91/mmc: use gpio_is_valid to check the gpio
ARM: at91/ide: use gpio_is_valid to check the gpio
ARM: at91/pata: use gpio_is_valid to check the gpio
ARM: at91/soc: use gpio_is_valid to check the gpio
...
Diffstat (limited to 'arch/arm/mach-at91/sam9_smc.c')
-rw-r--r-- | arch/arm/mach-at91/sam9_smc.c | 62 |
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 5eab6aa621d0..8294783b679d 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); } |