#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-#include <asm/compiler.h>
#include <dt-bindings/clock/ddr.h>
#include <linux/delay.h>
#include <linux/mfd/syscon.h>
#include <linux/rockchip/common.h>
#include <linux/rockchip/psci.h>
#include <linux/scpi_protocol.h>
+#include <asm/compiler.h>
#define GRF_DDRC0_CON0 0x600
#define GRF_SOC_STATUS5 0x494
#define FIQ_NUM_FOR_DCF (143) /*NA irq map to fiq for dcf*/
-#define DDR_VERSION "V1.02 20150907"
+#define DDR_VERSION "V1.03 20150910"
enum ddr_bandwidth_id {
ddrbw_wr_num = 0,
ddrbw_id_end
};
+struct ddr_timing {
+ u32 dram_spd_bin;
+ u32 sr_idle;
+ u32 pd_idle;
+ u32 dram_dll_dis_freq;
+ u32 phy_dll_dis_freq;
+ u32 dram_odt_dis_freq;
+ u32 phy_odt_dis_freq;
+ u32 ddr3_drv;
+ u32 ddr3_odt;
+ u32 lpddr3_drv;
+ u32 lpddr3_odt;
+ u32 lpddr2_drv;
+ u32 phy_clk_drv;
+ u32 phy_cmd_drv;
+ u32 phy_dqs_drv;
+ u32 phy_odt;
+};
+
struct rockchip_ddr {
struct regmap *ddrpctl_regs;
struct regmap *msch_regs;
struct regmap *grf_regs;
+ struct ddr_timing dram_timing;
};
static struct rockchip_ddr *ddr_data = NULL;
+static int of_do_get_timings(struct device_node *np, struct ddr_timing *tim)
+{
+ struct device_node *np_tim;
+ int ret;
+
+ ret = 0;
+
+ np_tim = of_parse_phandle(np, "rockchip,ddr_timing", 0);
+ if (!np_tim)
+ return 1;
+
+ ret |= of_property_read_u32(np_tim, "dram_spd_bin",
+ &tim->dram_spd_bin);
+ ret |= of_property_read_u32(np_tim, "sr_idle", &tim->sr_idle);
+ ret |= of_property_read_u32(np_tim, "pd_idle", &tim->pd_idle);
+ ret |= of_property_read_u32(np_tim, "dram_dll_disb_freq",
+ &tim->dram_dll_dis_freq);
+ ret |= of_property_read_u32(np_tim, "phy_dll_disb_freq",
+ &tim->phy_dll_dis_freq);
+ ret |= of_property_read_u32(np_tim, "dram_odt_disb_freq",
+ &tim->dram_odt_dis_freq);
+ ret |= of_property_read_u32(np_tim, "phy_odt_disb_freq",
+ &tim->phy_odt_dis_freq);
+ ret |= of_property_read_u32(np_tim, "ddr3_drv", &tim->ddr3_drv);
+ ret |= of_property_read_u32(np_tim, "ddr3_odt", &tim->ddr3_odt);
+ ret |= of_property_read_u32(np_tim, "lpddr3_drv", &tim->lpddr3_drv);
+ ret |= of_property_read_u32(np_tim, "lpddr3_odt", &tim->lpddr3_odt);
+ ret |= of_property_read_u32(np_tim, "lpddr2_drv", &tim->lpddr2_drv);
+ ret |= of_property_read_u32(np_tim, "phy_clk_drv", &tim->phy_clk_drv);
+ ret |= of_property_read_u32(np_tim, "phy_cmd_drv", &tim->phy_cmd_drv);
+ ret |= of_property_read_u32(np_tim, "phy_dqs_drv", &tim->phy_dqs_drv);
+ ret |= of_property_read_u32(np_tim, "phy_odt", &tim->phy_odt);
+
+ return ret;
+}
+
static int _ddr_recalc_rate(void)
{
int ddr_freq;
ddr_bandwidth_get = _ddr_bandwidth_get;
ddr_recalc_rate = _ddr_recalc_rate;
rockchip_tf_ver_check();
+ if (!of_do_get_timings(np, (struct ddr_timing *)&ddr_data->dram_timing)) {
+ if (scpi_ddr_send_timing((u32 *)&ddr_data->dram_timing,
+ sizeof(struct ddr_timing)))
+ pr_info("send ddr timing timeout\n");
+ } else {
+ pr_err("get ddr timing from dts error\n");
+ ddr_data->dram_timing.dram_spd_bin = DDR3_DEFAULT;
+ }
addr_mcu_el3 = rockchip_psci_smc_write(PSCI_SIP_EL3FIQ_CFG,
FIQ_NUM_FOR_DCF,
FIQ_CPU_TGT_BOOT, 0);
if ((addr_mcu_el3 == 0) || (addr_mcu_el3 > 0x80000))
pr_info("Trust version error, pls check trust version\n");
- ddr_init(DDR3_DEFAULT, 0, addr_mcu_el3);
+ ddr_init(ddr_data->dram_timing.dram_spd_bin, 0, addr_mcu_el3);
pr_info("%s: success\n", __func__);
return 0;
}
static int __init rockchip_ddr_init(void)
{
- pr_info("rockchip_ddr_init\n");
return platform_driver_probe(&rockchip_ddr_driver, rockchip_ddr_probe);
}
scpi_buf.timeout_ms = SCPI_CMD_DEFAULT_TIMEOUT_MS; \
} while (0)
+#define SCPI_SETUP_DBUF_BY_SIZE(scpi_buf, mbox_buf, _client_id, \
+ _cmd, _tx_buf, _tx_size, _rx_buf) \
+do { \
+ struct rockchip_mbox_msg *pdata = &mbox_buf; \
+ pdata->cmd = _cmd; \
+ pdata->tx_buf = _tx_buf; \
+ pdata->tx_size = _tx_size; \
+ pdata->rx_buf = &_rx_buf; \
+ pdata->rx_size = sizeof(_rx_buf); \
+ scpi_buf.client_id = _client_id; \
+ scpi_buf.data = pdata; \
+ scpi_buf.timeout_ms = SCPI_CMD_DEFAULT_TIMEOUT_MS; \
+} while (0)
+
static int scpi_execute_cmd(struct scpi_data_buf *scpi_buf)
{
struct rockchip_mbox_msg *data;
}
EXPORT_SYMBOL_GPL(scpi_ddr_set_clk_rate);
+int scpi_ddr_send_timing(u32 *p, u32 size)
+{
+ struct scpi_data_buf sdata;
+ struct rockchip_mbox_msg mdata;
+ struct __packed2 {
+ u32 status;
+ } rx_buf;
+ SCPI_SETUP_DBUF_BY_SIZE(sdata, mdata, SCPI_CL_DDR,
+ SCPI_DDR_SEND_TIMING, p, size, rx_buf);
+ return scpi_execute_cmd(&sdata);
+}
+EXPORT_SYMBOL_GPL(scpi_ddr_send_timing);
+
int scpi_ddr_round_rate(u32 m_hz)
{
struct scpi_data_buf sdata;