diff options
Diffstat (limited to 'arch/arm/mach-mx5/clock-mx51-mx53.c')
| -rw-r--r-- | arch/arm/mach-mx5/clock-mx51-mx53.c | 148 |
1 files changed, 142 insertions, 6 deletions
diff --git a/arch/arm/mach-mx5/clock-mx51-mx53.c b/arch/arm/mach-mx5/clock-mx51-mx53.c index 0a19e7567c0..652ace41382 100644 --- a/arch/arm/mach-mx5/clock-mx51-mx53.c +++ b/arch/arm/mach-mx5/clock-mx51-mx53.c @@ -42,6 +42,9 @@ static struct clk usboh3_clk; static struct clk emi_fast_clk; static struct clk ipu_clk; static struct clk mipi_hsc1_clk; +static struct clk esdhc1_clk; +static struct clk esdhc2_clk; +static struct clk esdhc3_mx53_clk; #define MAX_DPLL_WAIT_TRIES 1000 /* 1000 * udelay(1) = 1ms */ @@ -867,10 +870,6 @@ static struct clk gpt_32k_clk = { .parent = &ckil_clk, }; -static struct clk kpp_clk = { - .id = 0, -}; - static struct clk dummy_clk = { .id = 0, }; @@ -1147,10 +1146,80 @@ CLK_GET_RATE(esdhc1, 1, ESDHC1_MSHC1) CLK_SET_PARENT(esdhc1, 1, ESDHC1_MSHC1) CLK_SET_RATE(esdhc1, 1, ESDHC1_MSHC1) +/* mx51 specific */ CLK_GET_RATE(esdhc2, 1, ESDHC2_MSHC2) CLK_SET_PARENT(esdhc2, 1, ESDHC2_MSHC2) CLK_SET_RATE(esdhc2, 1, ESDHC2_MSHC2) +static int clk_esdhc3_set_parent(struct clk *clk, struct clk *parent) +{ + u32 reg; + + reg = __raw_readl(MXC_CCM_CSCMR1); + if (parent == &esdhc1_clk) + reg &= ~MXC_CCM_CSCMR1_ESDHC3_CLK_SEL; + else if (parent == &esdhc2_clk) + reg |= MXC_CCM_CSCMR1_ESDHC3_CLK_SEL; + else + return -EINVAL; + __raw_writel(reg, MXC_CCM_CSCMR1); + + return 0; +} + +static int clk_esdhc4_set_parent(struct clk *clk, struct clk *parent) +{ + u32 reg; + + reg = __raw_readl(MXC_CCM_CSCMR1); + if (parent == &esdhc1_clk) + reg &= ~MXC_CCM_CSCMR1_ESDHC4_CLK_SEL; + else if (parent == &esdhc2_clk) + reg |= MXC_CCM_CSCMR1_ESDHC4_CLK_SEL; + else + return -EINVAL; + __raw_writel(reg, MXC_CCM_CSCMR1); + + return 0; +} + +/* mx53 specific */ +static int clk_esdhc2_mx53_set_parent(struct clk *clk, struct clk *parent) +{ + u32 reg; + + reg = __raw_readl(MXC_CCM_CSCMR1); + if (parent == &esdhc1_clk) + reg &= ~MXC_CCM_CSCMR1_ESDHC2_MSHC2_MX53_CLK_SEL; + else if (parent == &esdhc3_mx53_clk) + reg |= MXC_CCM_CSCMR1_ESDHC2_MSHC2_MX53_CLK_SEL; + else + return -EINVAL; + __raw_writel(reg, MXC_CCM_CSCMR1); + + return 0; +} + +CLK_GET_RATE(esdhc3_mx53, 1, ESDHC3_MX53) +CLK_SET_PARENT(esdhc3_mx53, 1, ESDHC3_MX53) +CLK_SET_RATE(esdhc3_mx53, 1, ESDHC3_MX53) + +static int clk_esdhc4_mx53_set_parent(struct clk *clk, struct clk *parent) +{ + u32 reg; + + reg = __raw_readl(MXC_CCM_CSCMR1); + if (parent == &esdhc1_clk) + reg &= ~MXC_CCM_CSCMR1_ESDHC4_CLK_SEL; + else if (parent == &esdhc3_mx53_clk) + reg |= MXC_CCM_CSCMR1_ESDHC4_CLK_SEL; + else + return -EINVAL; + __raw_writel(reg, MXC_CCM_CSCMR1); + + return 0; +} + #define DEFINE_CLOCK_FULL(name, i, er, es, gr, sr, e, d, p, s) \ static struct clk name = { \ .id = i, \ @@ -1255,9 +1324,62 @@ DEFINE_CLOCK_MAX(esdhc1_clk, 0, MXC_CCM_CCGR3, MXC_CCM_CCGRx_CG1_OFFSET, clk_esdhc1, &pll2_sw_clk, &esdhc1_ipg_clk); DEFINE_CLOCK_FULL(esdhc2_ipg_clk, 1, MXC_CCM_CCGR3, MXC_CCM_CCGRx_CG2_OFFSET, NULL, NULL, _clk_max_enable, _clk_max_disable, &ipg_clk, NULL); +DEFINE_CLOCK_FULL(esdhc3_ipg_clk, 2, MXC_CCM_CCGR3, MXC_CCM_CCGRx_CG4_OFFSET, + NULL, NULL, _clk_max_enable, _clk_max_disable, &ipg_clk, NULL); +DEFINE_CLOCK_FULL(esdhc4_ipg_clk, 3, MXC_CCM_CCGR3, MXC_CCM_CCGRx_CG6_OFFSET, + NULL, NULL, _clk_max_enable, _clk_max_disable, &ipg_clk, NULL); + +/* mx51 specific */ DEFINE_CLOCK_MAX(esdhc2_clk, 1, MXC_CCM_CCGR3, MXC_CCM_CCGRx_CG3_OFFSET, clk_esdhc2, &pll2_sw_clk, &esdhc2_ipg_clk); +static struct clk esdhc3_clk = { + .id = 2, + .parent = &esdhc1_clk, + .set_parent = clk_esdhc3_set_parent, + .enable_reg = MXC_CCM_CCGR3, + .enable_shift = MXC_CCM_CCGRx_CG5_OFFSET, + .enable = _clk_max_enable, + .disable = _clk_max_disable, + .secondary = &esdhc3_ipg_clk, +}; +static struct clk esdhc4_clk = { + .id = 3, + .parent = &esdhc1_clk, + .set_parent = clk_esdhc4_set_parent, + .enable_reg = MXC_CCM_CCGR3, + .enable_shift = MXC_CCM_CCGRx_CG7_OFFSET, + .enable = _clk_max_enable, + .disable = _clk_max_disable, + .secondary = &esdhc4_ipg_clk, +}; + +/* mx53 specific */ +static struct clk esdhc2_mx53_clk = { + .id = 2, + .parent = &esdhc1_clk, + .set_parent = clk_esdhc2_mx53_set_parent, + .enable_reg = MXC_CCM_CCGR3, + .enable_shift = MXC_CCM_CCGRx_CG3_OFFSET, + .enable = _clk_max_enable, + .disable = _clk_max_disable, + .secondary = &esdhc3_ipg_clk, +}; + +DEFINE_CLOCK_MAX(esdhc3_mx53_clk, 2, MXC_CCM_CCGR3, MXC_CCM_CCGRx_CG5_OFFSET, + clk_esdhc3_mx53, &pll2_sw_clk, &esdhc2_ipg_clk); + +static struct clk esdhc4_mx53_clk = { + .id = 3, + .parent = &esdhc1_clk, + .set_parent = clk_esdhc4_mx53_set_parent, + .enable_reg = MXC_CCM_CCGR3, + .enable_shift = MXC_CCM_CCGRx_CG7_OFFSET, + .enable = _clk_max_enable, + .disable = _clk_max_disable, + .secondary = &esdhc4_ipg_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); @@ -1302,7 +1424,7 @@ static struct clk_lookup mx51_lookups[] = { _REGISTER_CLOCK("mxc-ehci.2", "usb_ahb", usb_ahb_clk) _REGISTER_CLOCK("fsl-usb2-udc", "usb", usboh3_clk) _REGISTER_CLOCK("fsl-usb2-udc", "usb_ahb", ahb_clk) - _REGISTER_CLOCK("imx-keypad", NULL, kpp_clk) + _REGISTER_CLOCK("imx-keypad", NULL, dummy_clk) _REGISTER_CLOCK("mxc_nand", NULL, nfc_clk) _REGISTER_CLOCK("imx-ssi.0", NULL, ssi1_clk) _REGISTER_CLOCK("imx-ssi.1", NULL, ssi2_clk) @@ -1316,6 +1438,8 @@ static struct clk_lookup mx51_lookups[] = { _REGISTER_CLOCK("imx51-cspi.0", NULL, cspi_clk) _REGISTER_CLOCK("sdhci-esdhc-imx.0", NULL, esdhc1_clk) _REGISTER_CLOCK("sdhci-esdhc-imx.1", NULL, esdhc2_clk) + _REGISTER_CLOCK("sdhci-esdhc-imx.2", NULL, esdhc3_clk) + _REGISTER_CLOCK("sdhci-esdhc-imx.3", NULL, esdhc4_clk) _REGISTER_CLOCK(NULL, "cpu_clk", cpu_clk) _REGISTER_CLOCK(NULL, "iim_clk", iim_clk) _REGISTER_CLOCK("imx2-wdt.0", NULL, dummy_clk) @@ -1336,10 +1460,14 @@ static struct clk_lookup mx53_lookups[] = { _REGISTER_CLOCK("imx-i2c.0", NULL, i2c1_clk) _REGISTER_CLOCK("imx-i2c.1", NULL, i2c2_clk) _REGISTER_CLOCK("sdhci-esdhc-imx.0", NULL, esdhc1_clk) - _REGISTER_CLOCK("sdhci-esdhc-imx.1", NULL, esdhc2_clk) + _REGISTER_CLOCK("sdhci-esdhc-imx.1", NULL, esdhc2_mx53_clk) + _REGISTER_CLOCK("sdhci-esdhc-imx.2", NULL, esdhc3_mx53_clk) + _REGISTER_CLOCK("sdhci-esdhc-imx.3", NULL, esdhc4_mx53_clk) _REGISTER_CLOCK("imx53-ecspi.0", NULL, ecspi1_clk) _REGISTER_CLOCK("imx53-ecspi.1", NULL, ecspi2_clk) _REGISTER_CLOCK("imx53-cspi.0", NULL, cspi_clk) + _REGISTER_CLOCK("imx2-wdt.0", NULL, dummy_clk) + _REGISTER_CLOCK("imx2-wdt.1", NULL, dummy_clk) }; static void clk_tree_init(void) @@ -1427,6 +1555,14 @@ int __init mx53_clocks_init(unsigned long ckil, unsigned long osc, mx53_revision(); clk_disable(&iim_clk); + /* Set SDHC parents to be PLL2 */ + clk_set_parent(&esdhc1_clk, &pll2_sw_clk); + clk_set_parent(&esdhc3_mx53_clk, &pll2_sw_clk); + + /* set SDHC root clock as 200MHZ*/ + clk_set_rate(&esdhc1_clk, 200000000); + clk_set_rate(&esdhc3_mx53_clk, 200000000); + /* System timer */ mxc_timer_init(&gpt_clk, MX53_IO_ADDRESS(MX53_GPT1_BASE_ADDR), MX53_INT_GPT); |