diff options
| author | Hans de Goede | 2015-01-14 19:05:03 +0100 |
|---|---|---|
| committer | Hans de Goede | 2015-01-22 12:34:55 +0100 |
| commit | daf22636c21462aed84f938b5de564f99769d136 (patch) | |
| tree | 67bbcb1660e66f8c12aa0a5388736fa40a7f25a1 | |
| parent | 5b8d7fb4fed408ae2ee77aed7773eece1ab58ec5 (diff) | |
sunxi: mmc: Add support for sun9i (A80)
The clocks on the A80 are hooked up slightly different, add support for this.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
| -rw-r--r-- | arch/arm/include/asm/arch-sunxi/mmc.h | 8 | ||||
| -rw-r--r-- | drivers/mmc/sunxi_mmc.c | 16 |
2 files changed, 20 insertions, 4 deletions
diff --git a/arch/arm/include/asm/arch-sunxi/mmc.h b/arch/arm/include/asm/arch-sunxi/mmc.h index 537f1455643..74833b51d12 100644 --- a/arch/arm/include/asm/arch-sunxi/mmc.h +++ b/arch/arm/include/asm/arch-sunxi/mmc.h @@ -43,10 +43,11 @@ struct sunxi_mmc { u32 chda; /* 0x90 */ u32 cbda; /* 0x94 */ u32 res1[26]; -#if defined(CONFIG_MACH_SUN6I) || defined(CONFIG_MACH_SUN8I) +#if defined(CONFIG_MACH_SUN6I) || defined(CONFIG_MACH_SUN8I) || \ + defined(CONFIG_MACH_SUN9I) u32 res2[64]; #endif - u32 fifo; /* 0x100 (0x200 on sun6i) FIFO access address */ + u32 fifo; /* 0x100 / 0x200 FIFO access address */ }; #define SUNXI_MMC_CLK_POWERSAVE (0x1 << 17) @@ -123,5 +124,8 @@ struct sunxi_mmc { #define SUNXI_MMC_IDIE_TXIRQ (0x1 << 0) #define SUNXI_MMC_IDIE_RXIRQ (0x1 << 1) +#define SUNXI_MMC_COMMON_CLK_GATE (1 << 16) +#define SUNXI_MMC_COMMON_RESET (1 << 18) + struct mmc *sunxi_mmc_init(int sdc_no); #endif /* _SUNXI_MMC_H */ diff --git a/drivers/mmc/sunxi_mmc.c b/drivers/mmc/sunxi_mmc.c index 1d484b83cf0..510479516b8 100644 --- a/drivers/mmc/sunxi_mmc.c +++ b/drivers/mmc/sunxi_mmc.c @@ -89,8 +89,13 @@ static int mmc_set_mod_clk(struct sunxi_mmc_host *mmchost, unsigned int hz) pll = CCM_MMC_CTRL_OSCM24; pll_hz = 24000000; } else { +#ifdef CONFIG_MACH_SUN9I + pll = CCM_MMC_CTRL_PLL_PERIPH0; + pll_hz = clock_get_pll4_periph0(); +#else pll = CCM_MMC_CTRL_PLL6; pll_hz = clock_get_pll6(); +#endif } div = pll_hz / hz; @@ -146,10 +151,16 @@ static int mmc_clk_io_on(int sdc_no) /* config ahb clock */ setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_MMC(sdc_no)); -#if defined(CONFIG_MACH_SUN6I) || defined(CONFIG_MACH_SUN8I) +#if defined(CONFIG_MACH_SUN6I) || defined(CONFIG_MACH_SUN8I) || \ + defined(CONFIG_MACH_SUN9I) /* unassert reset */ setbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_MMC(sdc_no)); #endif +#if defined(CONFIG_MACH_SUN9I) + /* sun9i has a mmc-common module, also set the gate and reset there */ + writel(SUNXI_MMC_COMMON_CLK_GATE | SUNXI_MMC_COMMON_RESET, + SUNXI_MMC_COMMON_BASE + 4 * sdc_no); +#endif return mmc_set_mod_clk(mmchost, 24000000); } @@ -439,7 +450,8 @@ struct mmc *sunxi_mmc_init(int sdc_no) cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34; cfg->host_caps = MMC_MODE_4BIT; cfg->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS; -#if defined(CONFIG_MACH_SUN6I) || defined(CONFIG_MACH_SUN7I) || defined(CONFIG_MACH_SUN8I) +#if defined(CONFIG_MACH_SUN6I) || defined(CONFIG_MACH_SUN7I) || \ + defined(CONFIG_MACH_SUN8I) || defined(CONFIG_MACH_SUN9I) cfg->host_caps |= MMC_MODE_HC; #endif cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT; |