Merge branch 'features/ahci' into for-arnd-features

This commit is contained in:
Sascha Hauer 2011-10-14 09:37:27 +02:00
commit d546029043
9 changed files with 210 additions and 0 deletions

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@ -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)

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@ -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)

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@ -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)

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@ -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)

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@ -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);

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@ -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

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@ -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

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@ -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);
}

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@ -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);