diff options
Diffstat (limited to 'arch/arm/plat-s3c64xx')
-rw-r--r-- | arch/arm/plat-s3c64xx/Kconfig | 2 | ||||
-rw-r--r-- | arch/arm/plat-s3c64xx/cpu.c | 5 | ||||
-rw-r--r-- | arch/arm/plat-s3c64xx/cpufreq.c | 40 | ||||
-rw-r--r-- | arch/arm/plat-s3c64xx/dev-audio.c | 101 | ||||
-rw-r--r-- | arch/arm/plat-s3c64xx/dma.c | 76 | ||||
-rw-r--r-- | arch/arm/plat-s3c64xx/gpiolib.c | 12 | ||||
-rw-r--r-- | arch/arm/plat-s3c64xx/include/plat/gpio-bank-c.h | 6 | ||||
-rw-r--r-- | arch/arm/plat-s3c64xx/include/plat/regs-clock.h | 4 | ||||
-rw-r--r-- | arch/arm/plat-s3c64xx/irq-eint.c | 19 | ||||
-rw-r--r-- | arch/arm/plat-s3c64xx/s3c6400-clock.c | 13 | ||||
-rw-r--r-- | arch/arm/plat-s3c64xx/setup-sdhci-gpio.c | 20 |
11 files changed, 236 insertions, 62 deletions
diff --git a/arch/arm/plat-s3c64xx/Kconfig b/arch/arm/plat-s3c64xx/Kconfig index bcfa778614d8..e6da87a5885c 100644 --- a/arch/arm/plat-s3c64xx/Kconfig +++ b/arch/arm/plat-s3c64xx/Kconfig @@ -1,5 +1,3 @@ -# arch/arm/plat-s3c64xx/Kconfig -# # Copyright 2008 Openmoko, Inc. # Copyright 2008 Simtec Electronics # Ben Dooks <ben@simtec.co.uk> diff --git a/arch/arm/plat-s3c64xx/cpu.c b/arch/arm/plat-s3c64xx/cpu.c index b1fdd83940a6..49796d2db86d 100644 --- a/arch/arm/plat-s3c64xx/cpu.c +++ b/arch/arm/plat-s3c64xx/cpu.c @@ -107,6 +107,11 @@ static struct map_desc s3c_iodesc[] __initdata = { .pfn = __phys_to_pfn(S3C64XX_PA_WATCHDOG), .length = SZ_4K, .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S3C_VA_USB_HSPHY, + .pfn = __phys_to_pfn(S3C64XX_PA_USB_HSPHY), + .length = SZ_1K, + .type = MT_DEVICE, }, }; diff --git a/arch/arm/plat-s3c64xx/cpufreq.c b/arch/arm/plat-s3c64xx/cpufreq.c index e6e0843215df..74c0e8347de5 100644 --- a/arch/arm/plat-s3c64xx/cpufreq.c +++ b/arch/arm/plat-s3c64xx/cpufreq.c @@ -19,6 +19,7 @@ static struct clk *armclk; static struct regulator *vddarm; +static unsigned long regulator_latency; #ifdef CONFIG_CPU_S3C6410 struct s3c64xx_dvfs { @@ -27,11 +28,10 @@ struct s3c64xx_dvfs { }; static struct s3c64xx_dvfs s3c64xx_dvfs_table[] = { - [0] = { 1000000, 1000000 }, - [1] = { 1000000, 1050000 }, - [2] = { 1050000, 1100000 }, - [3] = { 1050000, 1150000 }, - [4] = { 1250000, 1350000 }, + [0] = { 1000000, 1150000 }, + [1] = { 1050000, 1150000 }, + [2] = { 1100000, 1150000 }, + [3] = { 1200000, 1350000 }, }; static struct cpufreq_frequency_table s3c64xx_freq_table[] = { @@ -41,9 +41,9 @@ static struct cpufreq_frequency_table s3c64xx_freq_table[] = { { 1, 266000 }, { 2, 333000 }, { 2, 400000 }, - { 3, 532000 }, - { 3, 533000 }, - { 4, 667000 }, + { 2, 532000 }, + { 2, 533000 }, + { 3, 667000 }, { 0, CPUFREQ_TABLE_END }, }; #endif @@ -141,7 +141,7 @@ err: } #ifdef CONFIG_REGULATOR -static void __init s3c64xx_cpufreq_constrain_voltages(void) +static void __init s3c64xx_cpufreq_config_regulator(void) { int count, v, i, found; struct cpufreq_frequency_table *freq; @@ -150,11 +150,10 @@ static void __init s3c64xx_cpufreq_constrain_voltages(void) count = regulator_count_voltages(vddarm); if (count < 0) { pr_err("cpufreq: Unable to check supported voltages\n"); - return; } freq = s3c64xx_freq_table; - while (freq->frequency != CPUFREQ_TABLE_END) { + while (count > 0 && freq->frequency != CPUFREQ_TABLE_END) { if (freq->frequency == CPUFREQ_ENTRY_INVALID) continue; @@ -175,6 +174,10 @@ static void __init s3c64xx_cpufreq_constrain_voltages(void) freq++; } + + /* Guess based on having to do an I2C/SPI write; in future we + * will be able to query the regulator performance here. */ + regulator_latency = 1 * 1000 * 1000; } #endif @@ -206,7 +209,7 @@ static int __init s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy) pr_err("cpufreq: Only frequency scaling available\n"); vddarm = NULL; } else { - s3c64xx_cpufreq_constrain_voltages(); + s3c64xx_cpufreq_config_regulator(); } #endif @@ -217,8 +220,11 @@ static int __init s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy) /* Check for frequencies we can generate */ r = clk_round_rate(armclk, freq->frequency * 1000); r /= 1000; - if (r != freq->frequency) + if (r != freq->frequency) { + pr_debug("cpufreq: %dkHz unsupported by clock\n", + freq->frequency); freq->frequency = CPUFREQ_ENTRY_INVALID; + } /* If we have no regulator then assume startup * frequency is the maximum we can support. */ @@ -230,9 +236,11 @@ static int __init s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy) policy->cur = clk_get_rate(armclk) / 1000; - /* Pick a conservative guess in ns: we'll need ~1 I2C/SPI - * write plus clock reprogramming. */ - policy->cpuinfo.transition_latency = 2 * 1000 * 1000; + /* Datasheet says PLL stabalisation time (if we were to use + * the PLLs, which we don't currently) is ~300us worst case, + * but add some fudge. + */ + policy->cpuinfo.transition_latency = (500 * 1000) + regulator_latency; ret = cpufreq_frequency_table_cpuinfo(policy, s3c64xx_freq_table); if (ret != 0) { diff --git a/arch/arm/plat-s3c64xx/dev-audio.c b/arch/arm/plat-s3c64xx/dev-audio.c index 1322beb40dd7..a21a88fbb7e3 100644 --- a/arch/arm/plat-s3c64xx/dev-audio.c +++ b/arch/arm/plat-s3c64xx/dev-audio.c @@ -15,9 +15,14 @@ #include <mach/irqs.h> #include <mach/map.h> +#include <mach/dma.h> +#include <mach/gpio.h> #include <plat/devs.h> - +#include <plat/audio.h> +#include <plat/gpio-bank-d.h> +#include <plat/gpio-bank-e.h> +#include <plat/gpio-cfg.h> static struct resource s3c64xx_iis0_resource[] = { [0] = { @@ -66,3 +71,97 @@ struct platform_device s3c64xx_device_iisv4 = { .resource = s3c64xx_iisv4_resource, }; EXPORT_SYMBOL(s3c64xx_device_iisv4); + + +/* PCM Controller platform_devices */ + +static int s3c64xx_pcm_cfg_gpio(struct platform_device *pdev) +{ + switch (pdev->id) { + case 0: + s3c_gpio_cfgpin(S3C64XX_GPD(0), S3C64XX_GPD0_PCM0_SCLK); + s3c_gpio_cfgpin(S3C64XX_GPD(1), S3C64XX_GPD1_PCM0_EXTCLK); + s3c_gpio_cfgpin(S3C64XX_GPD(2), S3C64XX_GPD2_PCM0_FSYNC); + s3c_gpio_cfgpin(S3C64XX_GPD(3), S3C64XX_GPD3_PCM0_SIN); + s3c_gpio_cfgpin(S3C64XX_GPD(4), S3C64XX_GPD4_PCM0_SOUT); + break; + case 1: + s3c_gpio_cfgpin(S3C64XX_GPE(0), S3C64XX_GPE0_PCM1_SCLK); + s3c_gpio_cfgpin(S3C64XX_GPE(1), S3C64XX_GPE1_PCM1_EXTCLK); + s3c_gpio_cfgpin(S3C64XX_GPE(2), S3C64XX_GPE2_PCM1_FSYNC); + s3c_gpio_cfgpin(S3C64XX_GPE(3), S3C64XX_GPE3_PCM1_SIN); + s3c_gpio_cfgpin(S3C64XX_GPE(4), S3C64XX_GPE4_PCM1_SOUT); + break; + default: + printk(KERN_DEBUG "Invalid PCM Controller number!"); + return -EINVAL; + } + + return 0; +} + +static struct resource s3c64xx_pcm0_resource[] = { + [0] = { + .start = S3C64XX_PA_PCM0, + .end = S3C64XX_PA_PCM0 + 0x100 - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = DMACH_PCM0_TX, + .end = DMACH_PCM0_TX, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = DMACH_PCM0_RX, + .end = DMACH_PCM0_RX, + .flags = IORESOURCE_DMA, + }, +}; + +static struct s3c_audio_pdata s3c_pcm0_pdata = { + .cfg_gpio = s3c64xx_pcm_cfg_gpio, +}; + +struct platform_device s3c64xx_device_pcm0 = { + .name = "samsung-pcm", + .id = 0, + .num_resources = ARRAY_SIZE(s3c64xx_pcm0_resource), + .resource = s3c64xx_pcm0_resource, + .dev = { + .platform_data = &s3c_pcm0_pdata, + }, +}; +EXPORT_SYMBOL(s3c64xx_device_pcm0); + +static struct resource s3c64xx_pcm1_resource[] = { + [0] = { + .start = S3C64XX_PA_PCM1, + .end = S3C64XX_PA_PCM1 + 0x100 - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = DMACH_PCM1_TX, + .end = DMACH_PCM1_TX, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = DMACH_PCM1_RX, + .end = DMACH_PCM1_RX, + .flags = IORESOURCE_DMA, + }, +}; + +static struct s3c_audio_pdata s3c_pcm1_pdata = { + .cfg_gpio = s3c64xx_pcm_cfg_gpio, +}; + +struct platform_device s3c64xx_device_pcm1 = { + .name = "samsung-pcm", + .id = 1, + .num_resources = ARRAY_SIZE(s3c64xx_pcm1_resource), + .resource = s3c64xx_pcm1_resource, + .dev = { + .platform_data = &s3c_pcm1_pdata, + }, +}; +EXPORT_SYMBOL(s3c64xx_device_pcm1); diff --git a/arch/arm/plat-s3c64xx/dma.c b/arch/arm/plat-s3c64xx/dma.c index 266a10745a85..d554b936fcfb 100644 --- a/arch/arm/plat-s3c64xx/dma.c +++ b/arch/arm/plat-s3c64xx/dma.c @@ -151,8 +151,6 @@ static void s3c64xx_dma_fill_lli(struct s3c2410_dma_chan *chan, src = chan->dev_addr; dst = data; control0 = PL080_CONTROL_SRC_AHB2; - control0 |= (u32)chan->hw_width << PL080_CONTROL_SWIDTH_SHIFT; - control0 |= 2 << PL080_CONTROL_DWIDTH_SHIFT; control0 |= PL080_CONTROL_DST_INCR; break; @@ -160,8 +158,6 @@ static void s3c64xx_dma_fill_lli(struct s3c2410_dma_chan *chan, src = data; dst = chan->dev_addr; control0 = PL080_CONTROL_DST_AHB2; - control0 |= (u32)chan->hw_width << PL080_CONTROL_DWIDTH_SHIFT; - control0 |= 2 << PL080_CONTROL_SWIDTH_SHIFT; control0 |= PL080_CONTROL_SRC_INCR; break; default: @@ -173,6 +169,8 @@ static void s3c64xx_dma_fill_lli(struct s3c2410_dma_chan *chan, control1 = size >> chan->hw_width; /* size in no of xfers */ control0 |= PL080_CONTROL_PROT_SYS; /* always in priv. mode */ control0 |= PL080_CONTROL_TC_IRQ_EN; /* always fire IRQ */ + control0 |= (u32)chan->hw_width << PL080_CONTROL_DWIDTH_SHIFT; + control0 |= (u32)chan->hw_width << PL080_CONTROL_SWIDTH_SHIFT; lli->src_addr = src; lli->dst_addr = dst; @@ -339,6 +337,7 @@ int s3c2410_dma_enqueue(unsigned int channel, void *id, struct s3c64xx_dma_buff *next; struct s3c64xx_dma_buff *buff; struct pl080s_lli *lli; + unsigned long flags; int ret; WARN_ON(!chan); @@ -366,6 +365,8 @@ int s3c2410_dma_enqueue(unsigned int channel, void *id, s3c64xx_dma_fill_lli(chan, lli, data, size); + local_irq_save(flags); + if ((next = chan->next) != NULL) { struct s3c64xx_dma_buff *end = chan->end; struct pl080s_lli *endlli = end->lli; @@ -397,6 +398,8 @@ int s3c2410_dma_enqueue(unsigned int channel, void *id, s3c64xx_lli_to_regs(chan, lli); } + local_irq_restore(flags); + show_lli(lli); dbg_showchan(chan); @@ -560,26 +563,11 @@ int s3c2410_dma_free(unsigned int channel, struct s3c2410_dma_client *client) EXPORT_SYMBOL(s3c2410_dma_free); - -static void s3c64xx_dma_tcirq(struct s3c64xx_dmac *dmac, int offs) -{ - struct s3c2410_dma_chan *chan = dmac->channels + offs; - - /* note, we currently do not bother to work out which buffer - * or buffers have been completed since the last tc-irq. */ - - if (chan->callback_fn) - (chan->callback_fn)(chan, chan->curr->pw, 0, S3C2410_RES_OK); -} - -static void s3c64xx_dma_errirq(struct s3c64xx_dmac *dmac, int offs) -{ - printk(KERN_DEBUG "%s: offs %d\n", __func__, offs); -} - static irqreturn_t s3c64xx_dma_irq(int irq, void *pw) { struct s3c64xx_dmac *dmac = pw; + struct s3c2410_dma_chan *chan; + enum s3c2410_dma_buffresult res; u32 tcstat, errstat; u32 bit; int offs; @@ -588,14 +576,54 @@ static irqreturn_t s3c64xx_dma_irq(int irq, void *pw) errstat = readl(dmac->regs + PL080_ERR_STATUS); for (offs = 0, bit = 1; offs < 8; offs++, bit <<= 1) { + struct s3c64xx_dma_buff *buff; + + if (!(errstat & bit) && !(tcstat & bit)) + continue; + + chan = dmac->channels + offs; + res = S3C2410_RES_ERR; + if (tcstat & bit) { writel(bit, dmac->regs + PL080_TC_CLEAR); - s3c64xx_dma_tcirq(dmac, offs); + res = S3C2410_RES_OK; } - if (errstat & bit) { - s3c64xx_dma_errirq(dmac, offs); + if (errstat & bit) writel(bit, dmac->regs + PL080_ERR_CLEAR); + + /* 'next' points to the buffer that is next to the + * currently active buffer. + * For CIRCULAR queues, 'next' will be same as 'curr' + * when 'end' is the active buffer. + */ + buff = chan->curr; + while (buff && buff != chan->next + && buff->next != chan->next) + buff = buff->next; + + if (!buff) + BUG(); + + if (buff == chan->next) + buff = chan->end; + + s3c64xx_dma_bufffdone(chan, buff, res); + + /* Free the node and update curr, if non-circular queue */ + if (!(chan->flags & S3C2410_DMAF_CIRCULAR)) { + chan->curr = buff->next; + s3c64xx_dma_freebuff(buff); + } + + /* Update 'next' */ + buff = chan->next; + if (chan->next == chan->end) { + chan->next = chan->curr; + if (!(chan->flags & S3C2410_DMAF_CIRCULAR)) + chan->end = NULL; + } else { + chan->next = buff->next; } } diff --git a/arch/arm/plat-s3c64xx/gpiolib.c b/arch/arm/plat-s3c64xx/gpiolib.c index 92859290ea33..778560457277 100644 --- a/arch/arm/plat-s3c64xx/gpiolib.c +++ b/arch/arm/plat-s3c64xx/gpiolib.c @@ -213,6 +213,11 @@ static struct s3c_gpio_cfg gpio_4bit_cfg_eint0011 = { .get_pull = s3c_gpio_getpull_updown, }; +int s3c64xx_gpio2int_gpm(struct gpio_chip *chip, unsigned pin) +{ + return pin < 5 ? IRQ_EINT(23) + pin : -ENXIO; +} + static struct s3c_gpio_chip gpio_4bit[] = { { .base = S3C64XX_GPA_BASE, @@ -269,10 +274,16 @@ static struct s3c_gpio_chip gpio_4bit[] = { .base = S3C64XX_GPM(0), .ngpio = S3C64XX_GPIO_M_NR, .label = "GPM", + .to_irq = s3c64xx_gpio2int_gpm, }, }, }; +int s3c64xx_gpio2int_gpl(struct gpio_chip *chip, unsigned pin) +{ + return pin >= 8 ? IRQ_EINT(16) + pin - 8 : -ENXIO; +} + static struct s3c_gpio_chip gpio_4bit2[] = { { .base = S3C64XX_GPH_BASE + 0x4, @@ -297,6 +308,7 @@ static struct s3c_gpio_chip gpio_4bit2[] = { .base = S3C64XX_GPL(0), .ngpio = S3C64XX_GPIO_L_NR, .label = "GPL", + .to_irq = s3c64xx_gpio2int_gpl, }, }, }; diff --git a/arch/arm/plat-s3c64xx/include/plat/gpio-bank-c.h b/arch/arm/plat-s3c64xx/include/plat/gpio-bank-c.h index c47daf7e2723..e22b49f4f982 100644 --- a/arch/arm/plat-s3c64xx/include/plat/gpio-bank-c.h +++ b/arch/arm/plat-s3c64xx/include/plat/gpio-bank-c.h @@ -36,18 +36,18 @@ #define S3C64XX_GPC4_SPI_MISO1 (0x02 << 16) #define S3C64XX_GPC4_MMC2_CMD (0x03 << 16) -#define S3C64XX_GPC4_I2S0_V40_DO (0x05 << 16) +#define S3C64XX_GPC4_I2S_V40_DO0 (0x05 << 16) #define S3C64XX_GPC4_EINT_G2_4 (0x07 << 16) #define S3C64XX_GPC5_SPI_CLK1 (0x02 << 20) #define S3C64XX_GPC5_MMC2_CLK (0x03 << 20) -#define S3C64XX_GPC5_I2S1_V40_DO (0x05 << 20) +#define S3C64XX_GPC5_I2S_V40_DO1 (0x05 << 20) #define S3C64XX_GPC5_EINT_G2_5 (0x07 << 20) #define S3C64XX_GPC6_SPI_MOSI1 (0x02 << 24) #define S3C64XX_GPC6_EINT_G2_6 (0x07 << 24) #define S3C64XX_GPC7_SPI_nCS1 (0x02 << 28) -#define S3C64XX_GPC7_I2S2_V40_DO (0x05 << 28) +#define S3C64XX_GPC7_I2S_V40_DO2 (0x05 << 28) #define S3C64XX_GPC7_EINT_G2_7 (0x07 << 28) diff --git a/arch/arm/plat-s3c64xx/include/plat/regs-clock.h b/arch/arm/plat-s3c64xx/include/plat/regs-clock.h index a8777a755dfa..ff46e7fa957a 100644 --- a/arch/arm/plat-s3c64xx/include/plat/regs-clock.h +++ b/arch/arm/plat-s3c64xx/include/plat/regs-clock.h @@ -51,8 +51,8 @@ #define S3C6400_CLKDIV0_HCLK_SHIFT (8) #define S3C6400_CLKDIV0_MPLL_MASK (0x1 << 4) #define S3C6400_CLKDIV0_MPLL_SHIFT (4) -#define S3C6400_CLKDIV0_ARM_MASK (0x3 << 0) -#define S3C6410_CLKDIV0_ARM_MASK (0x7 << 0) +#define S3C6400_CLKDIV0_ARM_MASK (0x7 << 0) +#define S3C6410_CLKDIV0_ARM_MASK (0xf << 0) #define S3C6400_CLKDIV0_ARM_SHIFT (0) /* CLKDIV1 */ diff --git a/arch/arm/plat-s3c64xx/irq-eint.c b/arch/arm/plat-s3c64xx/irq-eint.c index f81b7b818ba0..ebdf183a0911 100644 --- a/arch/arm/plat-s3c64xx/irq-eint.c +++ b/arch/arm/plat-s3c64xx/irq-eint.c @@ -65,7 +65,7 @@ static void s3c_irq_eint_maskack(unsigned int irq) static int s3c_irq_eint_set_type(unsigned int irq, unsigned int type) { int offs = eint_offset(irq); - int pin; + int pin, pin_val; int shift; u32 ctrl, mask; u32 newvalue = 0; @@ -109,7 +109,10 @@ static int s3c_irq_eint_set_type(unsigned int irq, unsigned int type) return -1; } - shift = (offs / 2) * 4; + if (offs <= 15) + shift = (offs / 2) * 4; + else + shift = ((offs - 16) / 2) * 4; mask = 0x7 << shift; ctrl = __raw_readl(reg); @@ -119,12 +122,18 @@ static int s3c_irq_eint_set_type(unsigned int irq, unsigned int type) /* set the GPIO pin appropriately */ - if (offs < 23) + if (offs < 16) { pin = S3C64XX_GPN(offs); - else + pin_val = S3C_GPIO_SFN(2); + } else if (offs < 23) { + pin = S3C64XX_GPL(offs + 8 - 16); + pin_val = S3C_GPIO_SFN(3); + } else { pin = S3C64XX_GPM(offs - 23); + pin_val = S3C_GPIO_SFN(3); + } - s3c_gpio_cfgpin(pin, S3C_GPIO_SFN(2)); + s3c_gpio_cfgpin(pin, pin_val); return 0; } diff --git a/arch/arm/plat-s3c64xx/s3c6400-clock.c b/arch/arm/plat-s3c64xx/s3c6400-clock.c index 9745852261e0..ffd56deb9e81 100644 --- a/arch/arm/plat-s3c64xx/s3c6400-clock.c +++ b/arch/arm/plat-s3c64xx/s3c6400-clock.c @@ -46,6 +46,7 @@ static struct clk clk_ext_xtal_mux = { #define clk_fin_epll clk_ext_xtal_mux #define clk_fout_mpll clk_mpll +#define clk_fout_epll clk_epll struct clk_sources { unsigned int nr_sources; @@ -88,11 +89,6 @@ static struct clksrc_clk clk_mout_apll = { .sources = &clk_src_apll, }; -static struct clk clk_fout_epll = { - .name = "fout_epll", - .id = -1, -}; - static struct clk *clk_src_epll_list[] = { [0] = &clk_fin_epll, [1] = &clk_fout_epll, @@ -677,6 +673,9 @@ void __init_or_cpufreq s3c6400_setup_clocks(void) printk(KERN_DEBUG "%s: xtal is %ld\n", __func__, xtal); + /* For now assume the mux always selects the crystal */ + clk_ext_xtal_mux.parent = xtal_clk; + epll = s3c6400_get_epll(xtal); mpll = s3c6400_get_pll(xtal, __raw_readl(S3C_MPLL_CON)); apll = s3c6400_get_pll(xtal, __raw_readl(S3C_APLL_CON)); @@ -712,7 +711,6 @@ static struct clk *clks[] __initdata = { &clk_iis_cd1, &clk_pcm_cd, &clk_mout_epll.clk, - &clk_fout_epll, &clk_mout_mpll.clk, &clk_dout_mpll, &clk_mmc0.clk, @@ -757,7 +755,4 @@ void __init s3c6400_register_clocks(unsigned armclk_divlimit) clkp->name, ret); } } - - clk_mpll.parent = &clk_mout_mpll.clk; - clk_epll.parent = &clk_mout_epll.clk; } diff --git a/arch/arm/plat-s3c64xx/setup-sdhci-gpio.c b/arch/arm/plat-s3c64xx/setup-sdhci-gpio.c index 5417123b0ac1..a58c0cc7ba5e 100644 --- a/arch/arm/plat-s3c64xx/setup-sdhci-gpio.c +++ b/arch/arm/plat-s3c64xx/setup-sdhci-gpio.c @@ -53,3 +53,23 @@ void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width) s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP); s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(3)); } + +void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width) +{ + unsigned int gpio; + unsigned int end; + + end = S3C64XX_GPH(6 + width); + + /* Set all the necessary GPH pins to special-function 1 */ + for (gpio = S3C64XX_GPH(6); gpio < end; gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } + + /* Set all the necessary GPC pins to special-function 1 */ + for (gpio = S3C64XX_GPC(4); gpio < S3C64XX_GPC(6); gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } +} |