diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-shmobile/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/board-ap4evb.c | 46 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/clock-sh7372.c | 102 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/include/mach/gpio.h | 4 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/include/mach/sh7372.h | 2 |
5 files changed, 153 insertions, 3 deletions
diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig index 54b479c..51dcd59 100644 --- a/arch/arm/mach-shmobile/Kconfig +++ b/arch/arm/mach-shmobile/Kconfig @@ -116,4 +116,6 @@ endmenu config SH_CLK_CPG bool +source "drivers/sh/Kconfig" + endif diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c index 46ca4d4..32d9e28 100644 --- a/arch/arm/mach-shmobile/board-ap4evb.c +++ b/arch/arm/mach-shmobile/board-ap4evb.c @@ -565,12 +565,50 @@ static struct platform_device *qhd_devices[] __initdata = { /* FSI */ #define IRQ_FSI evt2irq(0x1840) + +static int fsi_set_rate(int is_porta, int rate) +{ + struct clk *fsib_clk; + struct clk *fdiv_clk = &sh7372_fsidivb_clk; + int ret; + + /* set_rate is not needed if port A */ + if (is_porta) + return 0; + + fsib_clk = clk_get(NULL, "fsib_clk"); + if (IS_ERR(fsib_clk)) + return -EINVAL; + + switch (rate) { + case 48000: + clk_set_rate(fsib_clk, clk_round_rate(fsib_clk, 85428000)); + clk_set_rate(fdiv_clk, clk_round_rate(fdiv_clk, 12204000)); + ret = SH_FSI_ACKMD_256 | SH_FSI_BPFMD_64; + break; + default: + pr_err("unsupported rate in FSI2 port B\n"); + ret = -EINVAL; + break; + } + + clk_put(fsib_clk); + + return ret; +} + static struct sh_fsi_platform_info fsi_info = { .porta_flags = SH_FSI_BRS_INV | SH_FSI_OUT_SLAVE_MODE | SH_FSI_IN_SLAVE_MODE | SH_FSI_OFMT(PCM) | SH_FSI_IFMT(PCM), + + .portb_flags = SH_FSI_BRS_INV | + SH_FSI_BRM_INV | + SH_FSI_LRS_INV | + SH_FSI_OFMT(SPDIF), + .set_rate = fsi_set_rate, }; static struct resource fsi_resources[] = { @@ -634,6 +672,7 @@ static struct platform_device lcdc1_device = { static struct sh_mobile_hdmi_info hdmi_info = { .lcd_chan = &sh_mobile_lcdc1_info.ch[0], .lcd_dev = &lcdc1_device.dev, + .flags = HDMI_SND_SRC_SPDIF, }; static struct resource hdmi_resources[] = { @@ -992,6 +1031,7 @@ static void __init ap4evb_map_io(void) #define GPIO_PORT9CR 0xE6051009 #define GPIO_PORT10CR 0xE605100A +#define USCCR1 0xE6058144 static void __init ap4evb_init(void) { u32 srcr4; @@ -1062,7 +1102,7 @@ static void __init ap4evb_init(void) /* setup USB phy */ __raw_writew(0x8a0a, 0xE6058130); /* USBCR2 */ - /* enable FSI2 */ + /* enable FSI2 port A (ak4643) */ gpio_request(GPIO_FN_FSIAIBT, NULL); gpio_request(GPIO_FN_FSIAILR, NULL); gpio_request(GPIO_FN_FSIAISLD, NULL); @@ -1079,6 +1119,10 @@ static void __init ap4evb_init(void) gpio_request(GPIO_PORT41, NULL); gpio_direction_input(GPIO_PORT41); + /* setup FSI2 port B (HDMI) */ + gpio_request(GPIO_FN_FSIBCK, NULL); + __raw_writew(__raw_readw(USCCR1) & ~(1 << 6), USCCR1); /* use SPDIF */ + /* set SPU2 clock to 119.6 MHz */ clk = clk_get(NULL, "spu_clk"); if (!IS_ERR(clk)) { diff --git a/arch/arm/mach-shmobile/clock-sh7372.c b/arch/arm/mach-shmobile/clock-sh7372.c index 8565aef..7db31e6 100644 --- a/arch/arm/mach-shmobile/clock-sh7372.c +++ b/arch/arm/mach-shmobile/clock-sh7372.c @@ -50,6 +50,9 @@ #define SMSTPCR3 0xe615013c #define SMSTPCR4 0xe6150140 +#define FSIDIVA 0xFE1F8000 +#define FSIDIVB 0xFE1F8008 + /* Platforms must set frequency on their DV_CLKI pin */ struct clk sh7372_dv_clki_clk = { }; @@ -288,6 +291,7 @@ struct clk sh7372_pllc2_clk = { .ops = &pllc2_clk_ops, .parent = &extal1_div2_clk, .freq_table = pllc2_freq_table, + .nr_freqs = ARRAY_SIZE(pllc2_freq_table) - 1, .parent_table = pllc2_parent, .parent_num = ARRAY_SIZE(pllc2_parent), }; @@ -417,6 +421,101 @@ static struct clk div6_reparent_clks[DIV6_REPARENT_NR] = { fsibckcr_parent, ARRAY_SIZE(fsibckcr_parent), 6, 2), }; +/* FSI DIV */ +static unsigned long fsidiv_recalc(struct clk *clk) +{ + unsigned long value; + + value = __raw_readl(clk->mapping->base); + + if ((value & 0x3) != 0x3) + return 0; + + value >>= 16; + if (value < 2) + return 0; + + return clk->parent->rate / value; +} + +static long fsidiv_round_rate(struct clk *clk, unsigned long rate) +{ + return clk_rate_div_range_round(clk, 2, 0xffff, rate); +} + +static void fsidiv_disable(struct clk *clk) +{ + __raw_writel(0, clk->mapping->base); +} + +static int fsidiv_enable(struct clk *clk) +{ + unsigned long value; + + value = __raw_readl(clk->mapping->base) >> 16; + if (value < 2) { + fsidiv_disable(clk); + return -ENOENT; + } + + __raw_writel((value << 16) | 0x3, clk->mapping->base); + + return 0; +} + +static int fsidiv_set_rate(struct clk *clk, + unsigned long rate, int algo_id) +{ + int idx; + + if (clk->parent->rate == rate) { + fsidiv_disable(clk); + return 0; + } + + idx = (clk->parent->rate / rate) & 0xffff; + if (idx < 2) + return -ENOENT; + + __raw_writel(idx << 16, clk->mapping->base); + return fsidiv_enable(clk); +} + +static struct clk_ops fsidiv_clk_ops = { + .recalc = fsidiv_recalc, + .round_rate = fsidiv_round_rate, + .set_rate = fsidiv_set_rate, + .enable = fsidiv_enable, + .disable = fsidiv_disable, +}; + +static struct clk_mapping sh7372_fsidiva_clk_mapping = { + .phys = FSIDIVA, + .len = 8, +}; + +struct clk sh7372_fsidiva_clk = { + .ops = &fsidiv_clk_ops, + .parent = &div6_reparent_clks[DIV6_FSIA], /* late install */ + .mapping = &sh7372_fsidiva_clk_mapping, +}; + +static struct clk_mapping sh7372_fsidivb_clk_mapping = { + .phys = FSIDIVB, + .len = 8, +}; + +struct clk sh7372_fsidivb_clk = { + .ops = &fsidiv_clk_ops, + .parent = &div6_reparent_clks[DIV6_FSIB], /* late install */ + .mapping = &sh7372_fsidivb_clk_mapping, +}; + +static struct clk *late_main_clks[] = { + &sh7372_fsidiva_clk, + &sh7372_fsidivb_clk, +}; + enum { MSTP001, MSTP131, MSTP130, MSTP129, MSTP128, MSTP127, MSTP126, MSTP125, @@ -585,6 +684,9 @@ void __init sh7372_clock_init(void) if (!ret) ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR); + for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++) + ret = clk_register(late_main_clks[k]); + clkdev_add_table(lookups, ARRAY_SIZE(lookups)); if (!ret) diff --git a/arch/arm/mach-shmobile/include/mach/gpio.h b/arch/arm/mach-shmobile/include/mach/gpio.h index 5bc6bd4..2b1bb9e 100644 --- a/arch/arm/mach-shmobile/include/mach/gpio.h +++ b/arch/arm/mach-shmobile/include/mach/gpio.h @@ -35,12 +35,12 @@ static inline int gpio_cansleep(unsigned gpio) static inline int gpio_to_irq(unsigned gpio) { - return -ENOSYS; + return __gpio_to_irq(gpio); } static inline int irq_to_gpio(unsigned int irq) { - return -EINVAL; + return -ENOSYS; } #endif /* CONFIG_GPIOLIB */ diff --git a/arch/arm/mach-shmobile/include/mach/sh7372.h b/arch/arm/mach-shmobile/include/mach/sh7372.h index 147775a..e4f9004 100644 --- a/arch/arm/mach-shmobile/include/mach/sh7372.h +++ b/arch/arm/mach-shmobile/include/mach/sh7372.h @@ -464,5 +464,7 @@ extern struct clk sh7372_dv_clki_div2_clk; extern struct clk sh7372_pllc2_clk; extern struct clk sh7372_fsiack_clk; extern struct clk sh7372_fsibck_clk; +extern struct clk sh7372_fsidiva_clk; +extern struct clk sh7372_fsidivb_clk; #endif /* __ASM_SH7372_H__ */ |
