From mboxrd@z Thu Jan 1 00:00:00 1970 From: Petr Cvek Subject: [PATCH v2 08/21] ARM: pxa: magician: Add StrataFlash Vpp GPIO and alternative driver Date: Tue, 18 Aug 2015 00:00:40 +0200 Message-ID: <55D25988.1090109@tul.cz> References: Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-2 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-pm-owner@vger.kernel.org To: robert.jarzmik@free.fr, philipp.zabel@gmail.com, daniel@zonque.org, haojian.zhuang@gmail.com, sameo@linux.intel.com, lee.jones@linaro.org, cooloney@gmail.com, rpurdie@rpsys.net, j.anaszewski@samsung.com, linux@arm.linux.org.uk, sre@kernel.org, dbaryshkov@gmail.com, dwmw2@infradead.org Cc: linux-leds@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org List-Id: linux-leds@vger.kernel.org Add StrataFlash Vpp GPIO and alternative driver. Signed-off-by: Petr Cvek --- arch/arm/mach-pxa/magician.c | 76 ++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 73 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c index 7519238..7331b34 100644 --- a/arch/arm/mach-pxa/magician.c +++ b/arch/arm/mach-pxa/magician.c @@ -845,20 +845,66 @@ static struct pxaohci_platform_data magician_ohci_info = { * StrataFlash */ +static int magician_flash_init(struct platform_device *pdev) +{ + int ret = gpio_request(EGPIO_MAGICIAN_FLASH_VPP, "flash Vpp enable"); + + if (ret) { + pr_err("Cannot request flash enable GPIO (%i)\n", ret); + return ret; + } + + ret = gpio_direction_output(EGPIO_MAGICIAN_FLASH_VPP, 1); + if (ret) { + pr_err("Cannot set direction for flash enable (%i)\n", ret); + gpio_free(EGPIO_MAGICIAN_FLASH_VPP); + } + + return ret; +} + static void magician_set_vpp(struct platform_device *pdev, int vpp) { gpio_set_value(EGPIO_MAGICIAN_FLASH_VPP, vpp); } +static void magician_flash_exit(struct platform_device *pdev) +{ + gpio_free(EGPIO_MAGICIAN_FLASH_VPP); +} + static struct resource strataflash_resource = { .start = PXA_CS0_PHYS, .end = PXA_CS0_PHYS + SZ_64M - 1, .flags = IORESOURCE_MEM, }; +static struct mtd_partition magician_flash_parts[] = { + { + .name = "Bootloader", + .offset = 0x0, + .size = 0x40000, + .mask_flags = MTD_WRITEABLE, /* EXPERIMENTAL */ + }, + { + .name = "Linux Kernel", + .offset = 0x40000, + .size = MTDPART_SIZ_FULL, + }, +}; + +#if 1 /* Choose which one fits you better */ +/* + * physmap-flash driver + */ + static struct physmap_flash_data strataflash_data = { - .width = 4, - .set_vpp = magician_set_vpp, + .width = 4, + .init = magician_flash_init, + .set_vpp = magician_set_vpp, + .exit = magician_flash_exit, + .parts = magician_flash_parts, + .nr_parts = ARRAY_SIZE(magician_flash_parts), }; static struct platform_device strataflash = { @@ -871,6 +917,30 @@ static struct platform_device strataflash = { }, }; +#else + +/* + * pxa2xx-flash driver + */ + +static struct flash_platform_data magician_flash_data = { + .map_name = "cfi_probe", + .parts = magician_flash_parts, + .nr_parts = ARRAY_SIZE(magician_flash_parts), + .width = 4, +}; + +static struct platform_device strataflash = { + .name = "pxa2xx-flash", + .id = -1, + .dev = { + .platform_data = &magician_flash_data, + }, + .resource = &strataflash_resource, + .num_resources = 1, +}; +#endif + /* * PXA I2C normal controller (main) */ @@ -960,13 +1030,13 @@ static struct spi_board_info ads7846_spi_board_info[] __initdata = { static struct platform_device *devices[] __initdata = { &gpio_keys, &egpio, + &strataflash, &pwm_backlight, &pasic3, &vads7846_device, &bq24022, &gpio_vbus, &power_supply, - &strataflash, &leds_gpio, /* NOTICE mutually exclusive with PXA I2C */ -- 1.7.12.1 From mboxrd@z Thu Jan 1 00:00:00 1970 From: petr.cvek@tul.cz (Petr Cvek) Date: Tue, 18 Aug 2015 00:00:40 +0200 Subject: [PATCH v2 08/21] ARM: pxa: magician: Add StrataFlash Vpp GPIO and alternative driver In-Reply-To: References: Message-ID: <55D25988.1090109@tul.cz> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Add StrataFlash Vpp GPIO and alternative driver. Signed-off-by: Petr Cvek --- arch/arm/mach-pxa/magician.c | 76 ++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 73 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c index 7519238..7331b34 100644 --- a/arch/arm/mach-pxa/magician.c +++ b/arch/arm/mach-pxa/magician.c @@ -845,20 +845,66 @@ static struct pxaohci_platform_data magician_ohci_info = { * StrataFlash */ +static int magician_flash_init(struct platform_device *pdev) +{ + int ret = gpio_request(EGPIO_MAGICIAN_FLASH_VPP, "flash Vpp enable"); + + if (ret) { + pr_err("Cannot request flash enable GPIO (%i)\n", ret); + return ret; + } + + ret = gpio_direction_output(EGPIO_MAGICIAN_FLASH_VPP, 1); + if (ret) { + pr_err("Cannot set direction for flash enable (%i)\n", ret); + gpio_free(EGPIO_MAGICIAN_FLASH_VPP); + } + + return ret; +} + static void magician_set_vpp(struct platform_device *pdev, int vpp) { gpio_set_value(EGPIO_MAGICIAN_FLASH_VPP, vpp); } +static void magician_flash_exit(struct platform_device *pdev) +{ + gpio_free(EGPIO_MAGICIAN_FLASH_VPP); +} + static struct resource strataflash_resource = { .start = PXA_CS0_PHYS, .end = PXA_CS0_PHYS + SZ_64M - 1, .flags = IORESOURCE_MEM, }; +static struct mtd_partition magician_flash_parts[] = { + { + .name = "Bootloader", + .offset = 0x0, + .size = 0x40000, + .mask_flags = MTD_WRITEABLE, /* EXPERIMENTAL */ + }, + { + .name = "Linux Kernel", + .offset = 0x40000, + .size = MTDPART_SIZ_FULL, + }, +}; + +#if 1 /* Choose which one fits you better */ +/* + * physmap-flash driver + */ + static struct physmap_flash_data strataflash_data = { - .width = 4, - .set_vpp = magician_set_vpp, + .width = 4, + .init = magician_flash_init, + .set_vpp = magician_set_vpp, + .exit = magician_flash_exit, + .parts = magician_flash_parts, + .nr_parts = ARRAY_SIZE(magician_flash_parts), }; static struct platform_device strataflash = { @@ -871,6 +917,30 @@ static struct platform_device strataflash = { }, }; +#else + +/* + * pxa2xx-flash driver + */ + +static struct flash_platform_data magician_flash_data = { + .map_name = "cfi_probe", + .parts = magician_flash_parts, + .nr_parts = ARRAY_SIZE(magician_flash_parts), + .width = 4, +}; + +static struct platform_device strataflash = { + .name = "pxa2xx-flash", + .id = -1, + .dev = { + .platform_data = &magician_flash_data, + }, + .resource = &strataflash_resource, + .num_resources = 1, +}; +#endif + /* * PXA I2C normal controller (main) */ @@ -960,13 +1030,13 @@ static struct spi_board_info ads7846_spi_board_info[] __initdata = { static struct platform_device *devices[] __initdata = { &gpio_keys, &egpio, + &strataflash, &pwm_backlight, &pasic3, &vads7846_device, &bq24022, &gpio_vbus, &power_supply, - &strataflash, &leds_gpio, /* NOTICE mutually exclusive with PXA I2C */ -- 1.7.12.1