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authorKevin Hilman <khilman@deeprootsystems.com>2009-04-14 11:30:11 -0500
committerKevin Hilman <khilman@deeprootsystems.com>2009-04-27 09:50:11 -0700
commitd0e47fba054a55e0066c6ae2c807d98d086af5a9 (patch)
treeaa4b3b6312d1a5f22a3fd8f97e9ab05a805d7144 /arch/arm/mach-davinci/dm644x.c
parent73d3c68f09e608be983013dc8b3e49aebe89298c (diff)
davinci: update DM644x support in preparation for more SoCs
Rework DM644x code into SoC specific and board specific parts. This is also to generalize the structure a bit so it's easier to add support for new SoCs in the DaVinci family. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm/mach-davinci/dm644x.c')
-rw-r--r--arch/arm/mach-davinci/dm644x.c461
1 files changed, 461 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
new file mode 100644
index 00000000000..d428ef192ea
--- /dev/null
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -0,0 +1,461 @@
+/*
+ * TI DaVinci DM644x chip specific setup
+ *
+ * Author: Kevin Hilman, Deep Root Systems, LLC
+ *
+ * 2007 (c) Deep Root Systems, LLC. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+
+#include <mach/dm644x.h>
+#include <mach/clock.h>
+#include <mach/cputype.h>
+#include <mach/edma.h>
+#include <mach/irqs.h>
+#include <mach/psc.h>
+#include <mach/mux.h>
+
+#include "clock.h"
+#include "mux.h"
+
+/*
+ * Device specific clocks
+ */
+#define DM644X_REF_FREQ 27000000
+
+static struct pll_data pll1_data = {
+ .num = 1,
+ .phys_base = DAVINCI_PLL1_BASE,
+};
+
+static struct pll_data pll2_data = {
+ .num = 2,
+ .phys_base = DAVINCI_PLL2_BASE,
+};
+
+static struct clk ref_clk = {
+ .name = "ref_clk",
+ .rate = DM644X_REF_FREQ,
+};
+
+static struct clk pll1_clk = {
+ .name = "pll1",
+ .parent = &ref_clk,
+ .pll_data = &pll1_data,
+ .flags = CLK_PLL,
+};
+
+static struct clk pll1_sysclk1 = {
+ .name = "pll1_sysclk1",
+ .parent = &pll1_clk,
+ .flags = CLK_PLL,
+ .div_reg = PLLDIV1,
+};
+
+static struct clk pll1_sysclk2 = {
+ .name = "pll1_sysclk2",
+ .parent = &pll1_clk,
+ .flags = CLK_PLL,
+ .div_reg = PLLDIV2,
+};
+
+static struct clk pll1_sysclk3 = {
+ .name = "pll1_sysclk3",
+ .parent = &pll1_clk,
+ .flags = CLK_PLL,
+ .div_reg = PLLDIV3,
+};
+
+static struct clk pll1_sysclk5 = {
+ .name = "pll1_sysclk5",
+ .parent = &pll1_clk,
+ .flags = CLK_PLL,
+ .div_reg = PLLDIV5,
+};
+
+static struct clk pll1_aux_clk = {
+ .name = "pll1_aux_clk",
+ .parent = &pll1_clk,
+ .flags = CLK_PLL | PRE_PLL,
+};
+
+static struct clk pll1_sysclkbp = {
+ .name = "pll1_sysclkbp",
+ .parent = &pll1_clk,
+ .flags = CLK_PLL | PRE_PLL,
+ .div_reg = BPDIV
+};
+
+static struct clk pll2_clk = {
+ .name = "pll2",
+ .parent = &ref_clk,
+ .pll_data = &pll2_data,
+ .flags = CLK_PLL,
+};
+
+static struct clk pll2_sysclk1 = {
+ .name = "pll2_sysclk1",
+ .parent = &pll2_clk,
+ .flags = CLK_PLL,
+ .div_reg = PLLDIV1,
+};
+
+static struct clk pll2_sysclk2 = {
+ .name = "pll2_sysclk2",
+ .parent = &pll2_clk,
+ .flags = CLK_PLL,
+ .div_reg = PLLDIV2,
+};
+
+static struct clk pll2_sysclkbp = {
+ .name = "pll2_sysclkbp",
+ .parent = &pll2_clk,
+ .flags = CLK_PLL | PRE_PLL,
+ .div_reg = BPDIV
+};
+
+static struct clk dsp_clk = {
+ .name = "dsp",
+ .parent = &pll1_sysclk1,
+ .lpsc = DAVINCI_LPSC_GEM,
+ .flags = PSC_DSP,
+ .usecount = 1, /* REVISIT how to disable? */
+};
+
+static struct clk arm_clk = {
+ .name = "arm",
+ .parent = &pll1_sysclk2,
+ .lpsc = DAVINCI_LPSC_ARM,
+ .flags = ALWAYS_ENABLED,
+};
+
+static struct clk vicp_clk = {
+ .name = "vicp",
+ .parent = &pll1_sysclk2,
+ .lpsc = DAVINCI_LPSC_IMCOP,
+ .flags = PSC_DSP,
+ .usecount = 1, /* REVISIT how to disable? */
+};
+
+static struct clk vpss_master_clk = {
+ .name = "vpss_master",
+ .parent = &pll1_sysclk3,
+ .lpsc = DAVINCI_LPSC_VPSSMSTR,
+ .flags = CLK_PSC,
+};
+
+static struct clk vpss_slave_clk = {
+ .name = "vpss_slave",
+ .parent = &pll1_sysclk3,
+ .lpsc = DAVINCI_LPSC_VPSSSLV,
+};
+
+static struct clk uart0_clk = {
+ .name = "uart0",
+ .parent = &pll1_aux_clk,
+ .lpsc = DAVINCI_LPSC_UART0,
+};
+
+static struct clk uart1_clk = {
+ .name = "uart1",
+ .parent = &pll1_aux_clk,
+ .lpsc = DAVINCI_LPSC_UART1,
+};
+
+static struct clk uart2_clk = {
+ .name = "uart2",
+ .parent = &pll1_aux_clk,
+ .lpsc = DAVINCI_LPSC_UART2,
+};
+
+static struct clk emac_clk = {
+ .name = "emac",
+ .parent = &pll1_sysclk5,
+ .lpsc = DAVINCI_LPSC_EMAC_WRAPPER,
+};
+
+static struct clk i2c_clk = {
+ .name = "i2c",
+ .parent = &pll1_aux_clk,
+ .lpsc = DAVINCI_LPSC_I2C,
+};
+
+static struct clk ide_clk = {
+ .name = "ide",
+ .parent = &pll1_sysclk5,
+ .lpsc = DAVINCI_LPSC_ATA,
+};
+
+static struct clk asp_clk = {
+ .name = "asp0",
+ .parent = &pll1_sysclk5,
+ .lpsc = DAVINCI_LPSC_McBSP,
+};
+
+static struct clk mmcsd_clk = {
+ .name = "mmcsd",
+ .parent = &pll1_sysclk5,
+ .lpsc = DAVINCI_LPSC_MMC_SD,
+};
+
+static struct clk spi_clk = {
+ .name = "spi",
+ .parent = &pll1_sysclk5,
+ .lpsc = DAVINCI_LPSC_SPI,
+};
+
+static struct clk gpio_clk = {
+ .name = "gpio",
+ .parent = &pll1_sysclk5,
+ .lpsc = DAVINCI_LPSC_GPIO,
+};
+
+static struct clk usb_clk = {
+ .name = "usb",
+ .parent = &pll1_sysclk5,
+ .lpsc = DAVINCI_LPSC_USB,
+};
+
+static struct clk vlynq_clk = {
+ .name = "vlynq",
+ .parent = &pll1_sysclk5,
+ .lpsc = DAVINCI_LPSC_VLYNQ,
+};
+
+static struct clk aemif_clk = {
+ .name = "aemif",
+ .parent = &pll1_sysclk5,
+ .lpsc = DAVINCI_LPSC_AEMIF,
+};
+
+static struct clk pwm0_clk = {
+ .name = "pwm0",
+ .parent = &pll1_aux_clk,
+ .lpsc = DAVINCI_LPSC_PWM0,
+};
+
+static struct clk pwm1_clk = {
+ .name = "pwm1",
+ .parent = &pll1_aux_clk,
+ .lpsc = DAVINCI_LPSC_PWM1,
+};
+
+static struct clk pwm2_clk = {
+ .name = "pwm2",
+ .parent = &pll1_aux_clk,
+ .lpsc = DAVINCI_LPSC_PWM2,
+};
+
+static struct clk timer0_clk = {
+ .name = "timer0",
+ .parent = &pll1_aux_clk,
+ .lpsc = DAVINCI_LPSC_TIMER0,
+};
+
+static struct clk timer1_clk = {
+ .name = "timer1",
+ .parent = &pll1_aux_clk,
+ .lpsc = DAVINCI_LPSC_TIMER1,
+};
+
+static struct clk timer2_clk = {
+ .name = "timer2",
+ .parent = &pll1_aux_clk,
+ .lpsc = DAVINCI_LPSC_TIMER2,
+ .usecount = 1, /* REVISIT: why cant' this be disabled? */
+};
+
+struct davinci_clk dm644x_clks[] = {
+ CLK(NULL, "ref", &ref_clk),
+ CLK(NULL, "pll1", &pll1_clk),
+ CLK(NULL, "pll1_sysclk1", &pll1_sysclk1),
+ CLK(NULL, "pll1_sysclk2", &pll1_sysclk2),
+ CLK(NULL, "pll1_sysclk3", &pll1_sysclk3),
+ CLK(NULL, "pll1_sysclk5", &pll1_sysclk5),
+ CLK(NULL, "pll1_aux", &pll1_aux_clk),
+ CLK(NULL, "pll1_sysclkbp", &pll1_sysclkbp),
+ CLK(NULL, "pll2", &pll2_clk),
+ CLK(NULL, "pll2_sysclk1", &pll2_sysclk1),
+ CLK(NULL, "pll2_sysclk2", &pll2_sysclk2),
+ CLK(NULL, "pll2_sysclkbp", &pll2_sysclkbp),
+ CLK(NULL, "dsp", &dsp_clk),
+ CLK(NULL, "arm", &arm_clk),
+ CLK(NULL, "vicp", &vicp_clk),
+ CLK(NULL, "vpss_master", &vpss_master_clk),
+ CLK(NULL, "vpss_slave", &vpss_slave_clk),
+ CLK(NULL, "arm", &arm_clk),
+ CLK(NULL, "uart0", &uart0_clk),
+ CLK(NULL, "uart1", &uart1_clk),
+ CLK(NULL, "uart2", &uart2_clk),
+ CLK("davinci_emac.1", NULL, &emac_clk),
+ CLK("i2c_davinci.1", NULL, &i2c_clk),
+ CLK("palm_bk3710", NULL, &ide_clk),
+ CLK("soc-audio.0", NULL, &asp_clk),
+ CLK("davinci_mmc.0", NULL, &mmcsd_clk),
+ CLK(NULL, "spi", &spi_clk),
+ CLK(NULL, "gpio", &gpio_clk),
+ CLK(NULL, "usb", &usb_clk),
+ CLK(NULL, "vlynq", &vlynq_clk),
+ CLK(NULL, "aemif", &aemif_clk),
+ CLK(NULL, "pwm0", &pwm0_clk),
+ CLK(NULL, "pwm1", &pwm1_clk),
+ CLK(NULL, "pwm2", &pwm2_clk),
+ CLK(NULL, "timer0", &timer0_clk),
+ CLK(NULL, "timer1", &timer1_clk),
+ CLK("watchdog", NULL, &timer2_clk),
+ CLK(NULL, NULL, NULL),
+};
+
+#if defined(CONFIG_TI_DAVINCI_EMAC) || defined(CONFIG_TI_DAVINCI_EMAC_MODULE)
+
+static struct resource dm644x_emac_resources[] = {
+ {
+ .start = DM644X_EMAC_BASE,
+ .end = DM644X_EMAC_BASE + 0x47ff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = IRQ_EMACINT,
+ .end = IRQ_EMACINT,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device dm644x_emac_device = {
+ .name = "davinci_emac",
+ .id = 1,
+ .num_resources = ARRAY_SIZE(dm644x_emac_resources),
+ .resource = dm644x_emac_resources,
+};
+
+#endif
+
+/*
+ * Device specific mux setup
+ *
+ * soc description mux mode mode mux dbg
+ * reg offset mask mode
+ */
+static const struct mux_config dm644x_pins[] = {
+MUX_CFG(DM644X, HDIREN, 0, 16, 1, 1, true)
+MUX_CFG(DM644X, ATAEN, 0, 17, 1, 1, true)
+MUX_CFG(DM644X, ATAEN_DISABLE, 0, 17, 1, 0, true)
+
+MUX_CFG(DM644X, HPIEN_DISABLE, 0, 29, 1, 0, true)
+
+MUX_CFG(DM644X, AEAW, 0, 0, 31, 31, true)
+
+MUX_CFG(DM644X, MSTK, 1, 9, 1, 0, false)
+
+MUX_CFG(DM644X, I2C, 1, 7, 1, 1, false)
+
+MUX_CFG(DM644X, MCBSP, 1, 10, 1, 1, false)
+
+MUX_CFG(DM644X, UART1, 1, 1, 1, 1, true)
+MUX_CFG(DM644X, UART2, 1, 2, 1, 1, true)
+
+MUX_CFG(DM644X, PWM0, 1, 4, 1, 1, false)
+
+MUX_CFG(DM644X, PWM1, 1, 5, 1, 1, false)
+
+MUX_CFG(DM644X, PWM2, 1, 6, 1, 1, false)
+
+MUX_CFG(DM644X, VLYNQEN, 0, 15, 1, 1, false)
+MUX_CFG(DM644X, VLSCREN, 0, 14, 1, 1, false)
+MUX_CFG(DM644X, VLYNQWD, 0, 12, 3, 3, false)
+
+MUX_CFG(DM644X, EMACEN, 0, 31, 1, 1, true)
+
+MUX_CFG(DM644X, GPIO3V, 0, 31, 1, 0, true)
+
+MUX_CFG(DM644X, GPIO0, 0, 24, 1, 0, true)
+MUX_CFG(DM644X, GPIO3, 0, 25, 1, 0, false)
+MUX_CFG(DM644X, GPIO43_44, 1, 7, 1, 0, false)
+MUX_CFG(DM644X, GPIO46_47, 0, 22, 1, 0, true)
+
+MUX_CFG(DM644X, RGB666, 0, 22, 1, 1, true)
+
+MUX_CFG(DM644X, LOEEN, 0, 24, 1, 1, true)
+MUX_CFG(DM644X, LFLDEN, 0, 25, 1, 1, false)
+};
+
+
+/*----------------------------------------------------------------------*/
+
+static const s8 dma_chan_dm644x_no_event[] = {
+ 0, 1, 12, 13, 14,
+ 15, 25, 30, 31, 45,
+ 46, 47, 55, 56, 57,
+ 58, 59, 60, 61, 62,
+ 63,
+ -1
+};
+
+static struct edma_soc_info dm644x_edma_info = {
+ .n_channel = 64,
+ .n_region = 4,
+ .n_slot = 128,
+ .n_tc = 2,
+ .noevent = dma_chan_dm644x_no_event,
+};
+
+static struct resource edma_resources[] = {
+ {
+ .name = "edma_cc",
+ .start = 0x01c00000,
+ .end = 0x01c00000 + SZ_64K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .name = "edma_tc0",
+ .start = 0x01c10000,
+ .end = 0x01c10000 + SZ_1K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .name = "edma_tc1",
+ .start = 0x01c10400,
+ .end = 0x01c10400 + SZ_1K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = IRQ_CCINT0,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = IRQ_CCERRINT,
+ .flags = IORESOURCE_IRQ,
+ },
+ /* not using TC*_ERR */
+};
+
+static struct platform_device dm644x_edma_device = {
+ .name = "edma",
+ .id = -1,
+ .dev.platform_data = &dm644x_edma_info,
+ .num_resources = ARRAY_SIZE(edma_resources),
+ .resource = edma_resources,
+};
+
+/*----------------------------------------------------------------------*/
+void __init dm644x_init(void)
+{
+ davinci_clk_init(dm644x_clks);
+ davinci_mux_register(dm644x_pins, ARRAY_SIZE(dm644x_pins));
+}
+
+static int __init dm644x_init_devices(void)
+{
+ if (!cpu_is_davinci_dm644x())
+ return 0;
+
+ platform_device_register(&dm644x_edma_device);
+ return 0;
+}
+postcore_initcall(dm644x_init_devices);