diff options
| -rw-r--r-- | arch/arm/mach-mx5/board-mx53_ard.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-mx5/board-mx53_loco.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-mx5/board-mx53_smd.c | 16 | ||||
| -rw-r--r-- | arch/arm/mach-mx5/clock-mx51-mx53.c | 19 | ||||
| -rw-r--r-- | arch/arm/mach-mx5/devices-imx53.h | 2 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/devices/Kconfig | 4 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/devices/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/devices/platform-ahci-imx.c | 156 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/include/mach/devices-common.h | 10 |
9 files changed, 210 insertions, 0 deletions
diff --git a/arch/arm/mach-mx5/board-mx53_ard.c b/arch/arm/mach-mx5/board-mx53_ard.c index 76a67c4a2a0..ef2039eff74 100644 --- a/arch/arm/mach-mx5/board-mx53_ard.c +++ b/arch/arm/mach-mx5/board-mx53_ard.c @@ -234,6 +234,7 @@ static void __init mx53_ard_board_init(void) imx53_add_imx_i2c(1, &mx53_ard_i2c2_data); imx53_add_imx_i2c(2, &mx53_ard_i2c3_data); imx_add_gpio_keys(&ard_button_data); + imx53_add_ahci_imx(); } static void __init mx53_ard_timer_init(void) diff --git a/arch/arm/mach-mx5/board-mx53_loco.c b/arch/arm/mach-mx5/board-mx53_loco.c index 4e1d51d252d..940aac932fa 100644 --- a/arch/arm/mach-mx5/board-mx53_loco.c +++ b/arch/arm/mach-mx5/board-mx53_loco.c @@ -273,6 +273,7 @@ static void __init mx53_loco_board_init(void) imx53_add_sdhci_esdhc_imx(2, &mx53_loco_sd3_data); imx_add_gpio_keys(&loco_button_data); gpio_led_register_device(-1, &mx53loco_leds_data); + imx53_add_ahci_imx(); } static void __init mx53_loco_timer_init(void) diff --git a/arch/arm/mach-mx5/board-mx53_smd.c b/arch/arm/mach-mx5/board-mx53_smd.c index bc02894eafe..efcab68840a 100644 --- a/arch/arm/mach-mx5/board-mx53_smd.c +++ b/arch/arm/mach-mx5/board-mx53_smd.c @@ -35,6 +35,7 @@ #include "devices-imx53.h" #define SMD_FEC_PHY_RST IMX_GPIO_NR(7, 6) +#define MX53_SMD_SATA_PWR_EN IMX_GPIO_NR(3, 3) static iomux_v3_cfg_t mx53_smd_pads[] = { MX53_PAD_CSI0_DAT10__UART1_TXD_MUX, @@ -111,6 +112,19 @@ static const struct imxi2c_platform_data mx53_smd_i2c_data __initconst = { .bitrate = 100000, }; +static inline void mx53_smd_ahci_pwr_on(void) +{ + int ret; + + /* Enable SATA PWR */ + ret = gpio_request_one(MX53_SMD_SATA_PWR_EN, + GPIOF_DIR_OUT | GPIOF_INIT_HIGH, "ahci-sata-pwr"); + if (ret) { + pr_err("failed to enable SATA_PWR_EN: %d\n", ret); + return; + } +} + static void __init mx53_smd_board_init(void) { imx53_soc_init(); @@ -125,6 +139,8 @@ static void __init mx53_smd_board_init(void) imx53_add_sdhci_esdhc_imx(0, NULL); imx53_add_sdhci_esdhc_imx(1, NULL); imx53_add_sdhci_esdhc_imx(2, NULL); + mx53_smd_ahci_pwr_on(); + imx53_add_ahci_imx(); } static void __init mx53_smd_timer_init(void) diff --git a/arch/arm/mach-mx5/clock-mx51-mx53.c b/arch/arm/mach-mx5/clock-mx51-mx53.c index f7bf996f463..1ef7e97e001 100644 --- a/arch/arm/mach-mx5/clock-mx51-mx53.c +++ b/arch/arm/mach-mx5/clock-mx51-mx53.c @@ -1401,6 +1401,22 @@ static struct clk esdhc4_mx53_clk = { .secondary = &esdhc4_ipg_clk, }; +static struct clk sata_clk = { + .parent = &ipg_clk, + .enable = _clk_max_enable, + .enable_reg = MXC_CCM_CCGR4, + .enable_shift = MXC_CCM_CCGRx_CG1_OFFSET, + .disable = _clk_max_disable, +}; + +static struct clk ahci_phy_clk = { + .parent = &usb_phy1_clk, +}; + +static struct clk ahci_dma_clk = { + .parent = &ahb_clk, +}; + DEFINE_CLOCK(mipi_esc_clk, 0, MXC_CCM_CCGR4, MXC_CCM_CCGRx_CG5_OFFSET, NULL, NULL, NULL, &pll2_sw_clk); DEFINE_CLOCK(mipi_hsc2_clk, 0, MXC_CCM_CCGR4, MXC_CCM_CCGRx_CG4_OFFSET, NULL, NULL, &mipi_esc_clk, &pll2_sw_clk); DEFINE_CLOCK(mipi_hsc1_clk, 0, MXC_CCM_CCGR4, MXC_CCM_CCGRx_CG3_OFFSET, NULL, NULL, &mipi_hsc2_clk, &pll2_sw_clk); @@ -1507,6 +1523,9 @@ static struct clk_lookup mx53_lookups[] = { _REGISTER_CLOCK("imx-ssi.1", NULL, ssi2_clk) _REGISTER_CLOCK("imx-ssi.2", NULL, ssi3_clk) _REGISTER_CLOCK("imx-keypad", NULL, dummy_clk) + _REGISTER_CLOCK("imx53-ahci.0", "ahci", sata_clk) + _REGISTER_CLOCK("imx53-ahci.0", "ahci_phy", ahci_phy_clk) + _REGISTER_CLOCK("imx53-ahci.0", "ahci_dma", ahci_dma_clk) }; static void clk_tree_init(void) diff --git a/arch/arm/mach-mx5/devices-imx53.h b/arch/arm/mach-mx5/devices-imx53.h index c27fe8bb476..1ab399e73ca 100644 --- a/arch/arm/mach-mx5/devices-imx53.h +++ b/arch/arm/mach-mx5/devices-imx53.h @@ -40,3 +40,5 @@ extern const struct imx_imx_ssi_data imx53_imx_ssi_data[]; extern const struct imx_imx_keypad_data imx53_imx_keypad_data; #define imx53_add_imx_keypad(pdata) \ imx_add_imx_keypad(&imx53_imx_keypad_data, pdata) + +extern struct platform_device *__init imx53_add_ahci_imx(void); diff --git a/arch/arm/plat-mxc/devices/Kconfig b/arch/arm/plat-mxc/devices/Kconfig index bd294add932..f63887ba88b 100644 --- a/arch/arm/plat-mxc/devices/Kconfig +++ b/arch/arm/plat-mxc/devices/Kconfig @@ -76,3 +76,7 @@ config IMX_HAVE_PLATFORM_SDHCI_ESDHC_IMX config IMX_HAVE_PLATFORM_SPI_IMX bool + +config IMX_HAVE_PLATFORM_AHCI + bool + default y if ARCH_MX53 diff --git a/arch/arm/plat-mxc/devices/Makefile b/arch/arm/plat-mxc/devices/Makefile index b41bf972b54..e858ad92c3e 100644 --- a/arch/arm/plat-mxc/devices/Makefile +++ b/arch/arm/plat-mxc/devices/Makefile @@ -25,3 +25,4 @@ obj-$(CONFIG_IMX_HAVE_PLATFORM_MXC_RTC) += platform-mxc_rtc.o obj-$(CONFIG_IMX_HAVE_PLATFORM_MXC_W1) += platform-mxc_w1.o obj-$(CONFIG_IMX_HAVE_PLATFORM_SDHCI_ESDHC_IMX) += platform-sdhci-esdhc-imx.o obj-$(CONFIG_IMX_HAVE_PLATFORM_SPI_IMX) += platform-spi_imx.o +obj-$(CONFIG_IMX_HAVE_PLATFORM_AHCI) += platform-ahci-imx.o diff --git a/arch/arm/plat-mxc/devices/platform-ahci-imx.c b/arch/arm/plat-mxc/devices/platform-ahci-imx.c new file mode 100644 index 00000000000..d8a56aee521 --- /dev/null +++ b/arch/arm/plat-mxc/devices/platform-ahci-imx.c @@ -0,0 +1,156 @@ +/* + * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved. + */ + +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include <linux/io.h> +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/device.h> +#include <linux/dma-mapping.h> +#include <asm/sizes.h> +#include <mach/hardware.h> +#include <mach/devices-common.h> + +#define imx_ahci_imx_data_entry_single(soc, _devid) \ + { \ + .devid = _devid, \ + .iobase = soc ## _SATA_BASE_ADDR, \ + .irq = soc ## _INT_SATA, \ + } + +#ifdef CONFIG_SOC_IMX53 +const struct imx_ahci_imx_data imx53_ahci_imx_data __initconst = + imx_ahci_imx_data_entry_single(MX53, "imx53-ahci"); +#endif + +enum { + HOST_CAP = 0x00, + HOST_CAP_SSS = (1 << 27), /* Staggered Spin-up */ + HOST_PORTS_IMPL = 0x0c, + HOST_TIMER1MS = 0xe0, /* Timer 1-ms */ +}; + +static struct clk *sata_clk, *sata_ref_clk; + +/* AHCI module Initialization, if return 0, initialization is successful. */ +static int imx_sata_init(struct device *dev, void __iomem *addr) +{ + u32 tmpdata; + int ret = 0; + struct clk *clk; + + sata_clk = clk_get(dev, "ahci"); + if (IS_ERR(sata_clk)) { + dev_err(dev, "no sata clock.\n"); + return PTR_ERR(sata_clk); + } + ret = clk_enable(sata_clk); + if (ret) { + dev_err(dev, "can't enable sata clock.\n"); + goto put_sata_clk; + } + + /* Get the AHCI SATA PHY CLK */ + sata_ref_clk = clk_get(dev, "ahci_phy"); + if (IS_ERR(sata_ref_clk)) { + dev_err(dev, "no sata ref clock.\n"); + ret = PTR_ERR(sata_ref_clk); + goto release_sata_clk; + } + ret = clk_enable(sata_ref_clk); + if (ret) { + dev_err(dev, "can't enable sata ref clock.\n"); + goto put_sata_ref_clk; + } + + /* Get the AHB clock rate, and configure the TIMER1MS reg later */ + clk = clk_get(dev, "ahci_dma"); + if (IS_ERR(clk)) { + dev_err(dev, "no dma clock.\n"); + ret = PTR_ERR(clk); + goto release_sata_ref_clk; + } + tmpdata = clk_get_rate(clk) / 1000; + clk_put(clk); + + writel(tmpdata, addr + HOST_TIMER1MS); + + tmpdata = readl(addr + HOST_CAP); + if (!(tmpdata & HOST_CAP_SSS)) { + tmpdata |= HOST_CAP_SSS; + writel(tmpdata, addr + HOST_CAP); + } + + if (!(readl(addr + HOST_PORTS_IMPL) & 0x1)) + writel((readl(addr + HOST_PORTS_IMPL) | 0x1), + addr + HOST_PORTS_IMPL); + + return 0; + +release_sata_ref_clk: + clk_disable(sata_ref_clk); +put_sata_ref_clk: + clk_put(sata_ref_clk); +release_sata_clk: + clk_disable(sata_clk); +put_sata_clk: + clk_put(sata_clk); + + return ret; +} + +static void imx_sata_exit(struct device *dev) +{ + clk_disable(sata_ref_clk); + clk_put(sata_ref_clk); + + clk_disable(sata_clk); + clk_put(sata_clk); + +} +struct platform_device *__init imx_add_ahci_imx( + const struct imx_ahci_imx_data *data, + const struct ahci_platform_data *pdata) +{ + struct resource res[] = { + { + .start = data->iobase, + .end = data->iobase + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, { + .start = data->irq, + .end = data->irq, + .flags = IORESOURCE_IRQ, + }, + }; + + return imx_add_platform_device_dmamask(data->devid, 0, + res, ARRAY_SIZE(res), + pdata, sizeof(*pdata), DMA_BIT_MASK(32)); +} + +struct platform_device *__init imx53_add_ahci_imx(void) +{ + struct ahci_platform_data pdata = { + .init = imx_sata_init, + .exit = imx_sata_exit, + }; + + return imx_add_ahci_imx(&imx53_ahci_imx_data, &pdata); +} diff --git a/arch/arm/plat-mxc/include/mach/devices-common.h b/arch/arm/plat-mxc/include/mach/devices-common.h index 524538aabc4..f04e063f355 100644 --- a/arch/arm/plat-mxc/include/mach/devices-common.h +++ b/arch/arm/plat-mxc/include/mach/devices-common.h @@ -301,3 +301,13 @@ struct platform_device *__init imx_add_spi_imx( struct platform_device *imx_add_imx_dma(void); struct platform_device *imx_add_imx_sdma(char *name, resource_size_t iobase, int irq, struct sdma_platform_data *pdata); + +#include <linux/ahci_platform.h> +struct imx_ahci_imx_data { + const char *devid; + resource_size_t iobase; + resource_size_t irq; +}; +struct platform_device *__init imx_add_ahci_imx( + const struct imx_ahci_imx_data *data, + const struct ahci_platform_data *pdata); |